./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-85.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc 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-p_file-85.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 5e929c4003dd56b80bb766773f31b5c9376f023636b5de2c888cd8fd3433b56e --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 01:01:16,634 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 01:01:16,696 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-19 01:01:16,699 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 01:01:16,700 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 01:01:16,723 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 01:01:16,724 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 01:01:16,724 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 01:01:16,725 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 01:01:16,725 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 01:01:16,725 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 01:01:16,726 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 01:01:16,726 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 01:01:16,728 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 01:01:16,728 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 01:01:16,728 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 01:01:16,729 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 01:01:16,729 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 01:01:16,729 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 01:01:16,729 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 01:01:16,729 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 01:01:16,732 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 01:01:16,732 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 01:01:16,732 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 01:01:16,733 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 01:01:16,733 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 01:01:16,733 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 01:01:16,733 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 01:01:16,733 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 01:01:16,734 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 01:01:16,734 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 01:01:16,734 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 01:01:16,734 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 01:01:16,734 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 01:01:16,734 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 01:01:16,734 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 01:01:16,735 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 01:01:16,735 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 01:01:16,735 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 01:01:16,735 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 01:01:16,736 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 01:01:16,736 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 01:01:16,736 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5e929c4003dd56b80bb766773f31b5c9376f023636b5de2c888cd8fd3433b56e [2024-11-19 01:01:16,941 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 01:01:16,963 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 01:01:16,965 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 01:01:16,966 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 01:01:16,966 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 01:01:16,967 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-85.i [2024-11-19 01:01:18,178 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 01:01:18,345 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 01:01:18,346 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-85.i [2024-11-19 01:01:18,355 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6892ff11b/d4e0bdbb21a54e7cad535cc660e6900c/FLAG4d96f9b1b [2024-11-19 01:01:18,365 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6892ff11b/d4e0bdbb21a54e7cad535cc660e6900c [2024-11-19 01:01:18,368 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 01:01:18,369 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 01:01:18,370 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 01:01:18,370 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 01:01:18,375 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 01:01:18,375 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:01:18" (1/1) ... [2024-11-19 01:01:18,377 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e22e933 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:01:18, skipping insertion in model container [2024-11-19 01:01:18,377 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:01:18" (1/1) ... [2024-11-19 01:01:18,407 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 01:01:18,532 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-p_file-85.i[916,929] [2024-11-19 01:01:18,586 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 01:01:18,594 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 01:01:18,603 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-p_file-85.i[916,929] [2024-11-19 01:01:18,632 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 01:01:18,648 INFO L204 MainTranslator]: Completed translation [2024-11-19 01:01:18,648 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:01:18 WrapperNode [2024-11-19 01:01:18,648 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 01:01:18,649 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 01:01:18,649 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 01:01:18,649 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 01:01:18,654 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:01:18" (1/1) ... [2024-11-19 01:01:18,669 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:01:18" (1/1) ... [2024-11-19 01:01:18,706 INFO L138 Inliner]: procedures = 26, calls = 190, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 561 [2024-11-19 01:01:18,706 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 01:01:18,707 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 01:01:18,707 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 01:01:18,707 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 01:01:18,718 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:01:18" (1/1) ... [2024-11-19 01:01:18,718 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:01:18" (1/1) ... [2024-11-19 01:01:18,722 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:01:18" (1/1) ... [2024-11-19 01:01:18,746 INFO L175 MemorySlicer]: Split 139 memory accesses to 18 slices as follows [2, 7, 15, 14, 5, 8, 10, 6, 8, 5, 6, 6, 6, 9, 10, 6, 9, 7]. 11 percent of accesses are in the largest equivalence class. The 19 initializations are split as follows [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]. The 22 writes are split as follows [0, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 3, 1]. [2024-11-19 01:01:18,746 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:01:18" (1/1) ... [2024-11-19 01:01:18,746 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:01:18" (1/1) ... [2024-11-19 01:01:18,761 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:01:18" (1/1) ... [2024-11-19 01:01:18,771 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:01:18" (1/1) ... [2024-11-19 01:01:18,774 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:01:18" (1/1) ... [2024-11-19 01:01:18,776 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:01:18" (1/1) ... [2024-11-19 01:01:18,781 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 01:01:18,781 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 01:01:18,781 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 01:01:18,782 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 01:01:18,782 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:01:18" (1/1) ... [2024-11-19 01:01:18,786 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 01:01:18,796 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 01:01:18,820 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) [2024-11-19 01:01:18,824 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 [2024-11-19 01:01:18,860 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 01:01:18,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-19 01:01:18,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-19 01:01:18,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-19 01:01:18,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-19 01:01:18,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-19 01:01:18,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-19 01:01:18,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-19 01:01:18,863 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-19 01:01:18,863 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-11-19 01:01:18,863 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-11-19 01:01:18,863 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2024-11-19 01:01:18,863 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2024-11-19 01:01:18,863 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2024-11-19 01:01:18,863 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2024-11-19 01:01:18,863 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2024-11-19 01:01:18,863 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2024-11-19 01:01:18,863 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#16 [2024-11-19 01:01:18,863 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#17 [2024-11-19 01:01:18,864 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-19 01:01:18,864 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-19 01:01:18,864 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-19 01:01:18,864 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-19 01:01:18,864 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-19 01:01:18,864 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-19 01:01:18,864 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-19 01:01:18,864 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-19 01:01:18,864 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-11-19 01:01:18,864 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-11-19 01:01:18,864 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2024-11-19 01:01:18,864 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2024-11-19 01:01:18,864 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2024-11-19 01:01:18,865 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2024-11-19 01:01:18,865 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2024-11-19 01:01:18,865 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2024-11-19 01:01:18,865 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#16 [2024-11-19 01:01:18,865 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#17 [2024-11-19 01:01:18,865 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-19 01:01:18,866 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-19 01:01:18,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 01:01:18,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-19 01:01:18,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-19 01:01:18,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-19 01:01:18,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-19 01:01:18,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-19 01:01:18,868 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-19 01:01:18,868 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-19 01:01:18,868 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-19 01:01:18,868 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-19 01:01:18,868 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-11-19 01:01:18,868 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-11-19 01:01:18,868 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-11-19 01:01:18,868 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-11-19 01:01:18,868 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-11-19 01:01:18,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-11-19 01:01:18,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-11-19 01:01:18,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2024-11-19 01:01:18,869 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 01:01:18,869 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 01:01:19,016 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 01:01:19,018 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 01:01:19,477 INFO L? ?]: Removed 121 outVars from TransFormulas that were not future-live. [2024-11-19 01:01:19,477 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 01:01:19,492 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 01:01:19,493 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-19 01:01:19,494 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:01:19 BoogieIcfgContainer [2024-11-19 01:01:19,494 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 01:01:19,496 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 01:01:19,496 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 01:01:19,498 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 01:01:19,498 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 01:01:18" (1/3) ... [2024-11-19 01:01:19,499 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b66a76f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:01:19, skipping insertion in model container [2024-11-19 01:01:19,499 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:01:18" (2/3) ... [2024-11-19 01:01:19,499 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b66a76f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:01:19, skipping insertion in model container [2024-11-19 01:01:19,499 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:01:19" (3/3) ... [2024-11-19 01:01:19,501 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-p_file-85.i [2024-11-19 01:01:19,513 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 01:01:19,514 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-19 01:01:19,560 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 01:01:19,567 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;@3c073bba, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 01:01:19,567 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-19 01:01:19,571 INFO L276 IsEmpty]: Start isEmpty. Operand has 131 states, 105 states have (on average 1.380952380952381) internal successors, (145), 106 states have internal predecessors, (145), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-19 01:01:19,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-19 01:01:19,584 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:01:19,585 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:01:19,585 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:01:19,590 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:01:19,590 INFO L85 PathProgramCache]: Analyzing trace with hash -632733008, now seen corresponding path program 1 times [2024-11-19 01:01:19,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:01:19,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646096264] [2024-11-19 01:01:19,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:01:19,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:01:19,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:01:19,936 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 968 trivial. 0 not checked. [2024-11-19 01:01:19,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:01:19,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646096264] [2024-11-19 01:01:19,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1646096264] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 01:01:19,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [560436685] [2024-11-19 01:01:19,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:01:19,938 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 01:01:19,938 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 01:01:19,940 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) [2024-11-19 01:01:19,941 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-19 01:01:20,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:01:20,148 INFO L255 TraceCheckSpWp]: Trace formula consists of 671 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-19 01:01:20,158 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 01:01:20,187 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 968 trivial. 0 not checked. [2024-11-19 01:01:20,191 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 01:01:20,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [560436685] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:01:20,191 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 01:01:20,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-19 01:01:20,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434070261] [2024-11-19 01:01:20,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:01:20,200 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-19 01:01:20,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:01:20,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-19 01:01:20,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 01:01:20,221 INFO L87 Difference]: Start difference. First operand has 131 states, 105 states have (on average 1.380952380952381) internal successors, (145), 106 states have internal predecessors, (145), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) Second operand has 2 states, 2 states have (on average 34.5) internal successors, (69), 2 states have internal predecessors, (69), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-19 01:01:20,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:01:20,246 INFO L93 Difference]: Finished difference Result 255 states and 399 transitions. [2024-11-19 01:01:20,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-19 01:01:20,248 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 34.5) internal successors, (69), 2 states have internal predecessors, (69), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) Word has length 179 [2024-11-19 01:01:20,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:01:20,253 INFO L225 Difference]: With dead ends: 255 [2024-11-19 01:01:20,253 INFO L226 Difference]: Without dead ends: 127 [2024-11-19 01:01:20,256 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 01:01:20,258 INFO L432 NwaCegarLoop]: 184 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, 184 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 [2024-11-19 01:01:20,259 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 01:01:20,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2024-11-19 01:01:20,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 127. [2024-11-19 01:01:20,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 102 states have (on average 1.3529411764705883) internal successors, (138), 102 states have internal predecessors, (138), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-19 01:01:20,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 184 transitions. [2024-11-19 01:01:20,299 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 184 transitions. Word has length 179 [2024-11-19 01:01:20,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:01:20,301 INFO L471 AbstractCegarLoop]: Abstraction has 127 states and 184 transitions. [2024-11-19 01:01:20,301 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 34.5) internal successors, (69), 2 states have internal predecessors, (69), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-19 01:01:20,301 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 184 transitions. [2024-11-19 01:01:20,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-19 01:01:20,304 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:01:20,305 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:01:20,318 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-19 01:01:20,505 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-19 01:01:20,506 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:01:20,506 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:01:20,506 INFO L85 PathProgramCache]: Analyzing trace with hash -493224382, now seen corresponding path program 1 times [2024-11-19 01:01:20,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:01:20,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399611235] [2024-11-19 01:01:20,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:01:20,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:01:20,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:01:21,675 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-19 01:01:21,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:01:21,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [399611235] [2024-11-19 01:01:21,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [399611235] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:01:21,676 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:01:21,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-19 01:01:21,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240279266] [2024-11-19 01:01:21,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:01:21,677 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 01:01:21,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:01:21,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 01:01:21,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-19 01:01:21,680 INFO L87 Difference]: Start difference. First operand 127 states and 184 transitions. Second operand has 9 states, 8 states have (on average 8.375) internal successors, (67), 9 states have internal predecessors, (67), 4 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) [2024-11-19 01:01:22,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:01:22,172 INFO L93 Difference]: Finished difference Result 470 states and 679 transitions. [2024-11-19 01:01:22,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-19 01:01:22,173 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.375) internal successors, (67), 9 states have internal predecessors, (67), 4 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) Word has length 179 [2024-11-19 01:01:22,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:01:22,179 INFO L225 Difference]: With dead ends: 470 [2024-11-19 01:01:22,179 INFO L226 Difference]: Without dead ends: 346 [2024-11-19 01:01:22,180 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=79, Invalid=193, Unknown=0, NotChecked=0, Total=272 [2024-11-19 01:01:22,182 INFO L432 NwaCegarLoop]: 178 mSDtfsCounter, 746 mSDsluCounter, 715 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 746 SdHoareTripleChecker+Valid, 893 SdHoareTripleChecker+Invalid, 342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 01:01:22,183 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [746 Valid, 893 Invalid, 342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 01:01:22,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2024-11-19 01:01:22,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 199. [2024-11-19 01:01:22,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 171 states have (on average 1.391812865497076) internal successors, (238), 172 states have internal predecessors, (238), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-19 01:01:22,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 288 transitions. [2024-11-19 01:01:22,210 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 288 transitions. Word has length 179 [2024-11-19 01:01:22,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:01:22,213 INFO L471 AbstractCegarLoop]: Abstraction has 199 states and 288 transitions. [2024-11-19 01:01:22,213 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.375) internal successors, (67), 9 states have internal predecessors, (67), 4 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) [2024-11-19 01:01:22,213 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 288 transitions. [2024-11-19 01:01:22,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2024-11-19 01:01:22,219 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:01:22,219 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:01:22,219 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 01:01:22,220 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:01:22,220 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:01:22,220 INFO L85 PathProgramCache]: Analyzing trace with hash -1535301185, now seen corresponding path program 1 times [2024-11-19 01:01:22,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:01:22,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469890551] [2024-11-19 01:01:22,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:01:22,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:01:22,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:01:22,537 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-19 01:01:22,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:01:22,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [469890551] [2024-11-19 01:01:22,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [469890551] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:01:22,538 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:01:22,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 01:01:22,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506009293] [2024-11-19 01:01:22,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:01:22,538 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 01:01:22,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:01:22,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 01:01:22,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 01:01:22,539 INFO L87 Difference]: Start difference. First operand 199 states and 288 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-19 01:01:22,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:01:22,712 INFO L93 Difference]: Finished difference Result 575 states and 834 transitions. [2024-11-19 01:01:22,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 01:01:22,713 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 180 [2024-11-19 01:01:22,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:01:22,718 INFO L225 Difference]: With dead ends: 575 [2024-11-19 01:01:22,718 INFO L226 Difference]: Without dead ends: 379 [2024-11-19 01:01:22,720 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-19 01:01:22,721 INFO L432 NwaCegarLoop]: 174 mSDtfsCounter, 169 mSDsluCounter, 464 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 638 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 01:01:22,723 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 638 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 01:01:22,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2024-11-19 01:01:22,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 203. [2024-11-19 01:01:22,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 175 states have (on average 1.3828571428571428) internal successors, (242), 176 states have internal predecessors, (242), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-19 01:01:22,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 292 transitions. [2024-11-19 01:01:22,749 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 292 transitions. Word has length 180 [2024-11-19 01:01:22,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:01:22,750 INFO L471 AbstractCegarLoop]: Abstraction has 203 states and 292 transitions. [2024-11-19 01:01:22,750 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-19 01:01:22,750 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 292 transitions. [2024-11-19 01:01:22,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2024-11-19 01:01:22,752 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:01:22,753 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:01:22,753 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 01:01:22,753 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:01:22,753 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:01:22,753 INFO L85 PathProgramCache]: Analyzing trace with hash -1213410666, now seen corresponding path program 1 times [2024-11-19 01:01:22,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:01:22,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733606908] [2024-11-19 01:01:22,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:01:22,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:01:22,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:01:23,216 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-19 01:01:23,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:01:23,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733606908] [2024-11-19 01:01:23,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1733606908] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:01:23,217 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:01:23,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 01:01:23,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366385110] [2024-11-19 01:01:23,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:01:23,220 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 01:01:23,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:01:23,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 01:01:23,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-19 01:01:23,221 INFO L87 Difference]: Start difference. First operand 203 states and 292 transitions. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-19 01:01:23,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:01:23,555 INFO L93 Difference]: Finished difference Result 782 states and 1124 transitions. [2024-11-19 01:01:23,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 01:01:23,556 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 180 [2024-11-19 01:01:23,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:01:23,561 INFO L225 Difference]: With dead ends: 782 [2024-11-19 01:01:23,561 INFO L226 Difference]: Without dead ends: 582 [2024-11-19 01:01:23,562 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-19 01:01:23,563 INFO L432 NwaCegarLoop]: 268 mSDtfsCounter, 325 mSDsluCounter, 1068 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 325 SdHoareTripleChecker+Valid, 1336 SdHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 01:01:23,564 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [325 Valid, 1336 Invalid, 266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 265 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 01:01:23,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 582 states. [2024-11-19 01:01:23,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 582 to 249. [2024-11-19 01:01:23,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 221 states have (on average 1.3936651583710407) internal successors, (308), 222 states have internal predecessors, (308), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-19 01:01:23,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 358 transitions. [2024-11-19 01:01:23,597 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 358 transitions. Word has length 180 [2024-11-19 01:01:23,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:01:23,598 INFO L471 AbstractCegarLoop]: Abstraction has 249 states and 358 transitions. [2024-11-19 01:01:23,598 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-19 01:01:23,598 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 358 transitions. [2024-11-19 01:01:23,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2024-11-19 01:01:23,600 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:01:23,600 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:01:23,600 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 01:01:23,601 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:01:23,601 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:01:23,601 INFO L85 PathProgramCache]: Analyzing trace with hash 2060488276, now seen corresponding path program 1 times [2024-11-19 01:01:23,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:01:23,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115620415] [2024-11-19 01:01:23,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:01:23,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:01:23,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:01:24,393 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 42 proven. 24 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-19 01:01:24,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:01:24,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115620415] [2024-11-19 01:01:24,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1115620415] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 01:01:24,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1982788298] [2024-11-19 01:01:24,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:01:24,394 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 01:01:24,394 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 01:01:24,397 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) [2024-11-19 01:01:24,400 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-19 01:01:24,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:01:24,602 INFO L255 TraceCheckSpWp]: Trace formula consists of 673 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-19 01:01:24,607 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 01:01:24,654 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 11 treesize of output 9 [2024-11-19 01:01:24,741 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-19 01:01:24,742 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 01:01:24,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1982788298] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:01:24,742 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 01:01:24,743 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [11] total 17 [2024-11-19 01:01:24,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123094948] [2024-11-19 01:01:24,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:01:24,743 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 01:01:24,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:01:24,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 01:01:24,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=238, Unknown=0, NotChecked=0, Total=272 [2024-11-19 01:01:24,746 INFO L87 Difference]: Start difference. First operand 249 states and 358 transitions. Second operand has 8 states, 8 states have (on average 8.5) internal successors, (68), 8 states have internal predecessors, (68), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-19 01:01:24,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:01:24,888 INFO L93 Difference]: Finished difference Result 737 states and 1062 transitions. [2024-11-19 01:01:24,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 01:01:24,888 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 8 states have internal predecessors, (68), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 180 [2024-11-19 01:01:24,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:01:24,891 INFO L225 Difference]: With dead ends: 737 [2024-11-19 01:01:24,891 INFO L226 Difference]: Without dead ends: 491 [2024-11-19 01:01:24,892 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=56, Invalid=406, Unknown=0, NotChecked=0, Total=462 [2024-11-19 01:01:24,892 INFO L432 NwaCegarLoop]: 339 mSDtfsCounter, 177 mSDsluCounter, 1504 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 1843 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 [2024-11-19 01:01:24,892 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [177 Valid, 1843 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 01:01:24,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 491 states. [2024-11-19 01:01:24,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 491 to 263. [2024-11-19 01:01:24,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 263 states, 235 states have (on average 1.3787234042553191) internal successors, (324), 236 states have internal predecessors, (324), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-19 01:01:24,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 374 transitions. [2024-11-19 01:01:24,909 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 374 transitions. Word has length 180 [2024-11-19 01:01:24,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:01:24,910 INFO L471 AbstractCegarLoop]: Abstraction has 263 states and 374 transitions. [2024-11-19 01:01:24,910 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 8 states have internal predecessors, (68), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-19 01:01:24,910 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 374 transitions. [2024-11-19 01:01:24,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2024-11-19 01:01:24,912 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:01:24,912 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:01:24,927 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-19 01:01:25,112 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 01:01:25,113 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:01:25,113 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:01:25,113 INFO L85 PathProgramCache]: Analyzing trace with hash -395762216, now seen corresponding path program 1 times [2024-11-19 01:01:25,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:01:25,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146408776] [2024-11-19 01:01:25,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:01:25,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:01:25,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:01:25,767 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 42 proven. 24 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-19 01:01:25,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:01:25,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146408776] [2024-11-19 01:01:25,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1146408776] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 01:01:25,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [26389702] [2024-11-19 01:01:25,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:01:25,768 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 01:01:25,768 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 01:01:25,770 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) [2024-11-19 01:01:25,771 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-19 01:01:25,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:01:25,980 INFO L255 TraceCheckSpWp]: Trace formula consists of 681 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-19 01:01:25,986 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 01:01:26,015 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 11 treesize of output 7 [2024-11-19 01:01:26,071 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 17 treesize of output 13 [2024-11-19 01:01:26,104 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 [2024-11-19 01:01:26,131 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 19 treesize of output 11 [2024-11-19 01:01:26,176 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-19 01:01:26,176 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 01:01:26,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [26389702] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:01:26,176 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 01:01:26,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [11] total 19 [2024-11-19 01:01:26,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168193605] [2024-11-19 01:01:26,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:01:26,177 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 01:01:26,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:01:26,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 01:01:26,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342 [2024-11-19 01:01:26,179 INFO L87 Difference]: Start difference. First operand 263 states and 374 transitions. Second operand has 10 states, 10 states have (on average 6.8) internal successors, (68), 10 states have internal predecessors, (68), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-19 01:01:26,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:01:26,614 INFO L93 Difference]: Finished difference Result 870 states and 1238 transitions. [2024-11-19 01:01:26,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-19 01:01:26,614 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.8) internal successors, (68), 10 states have internal predecessors, (68), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 180 [2024-11-19 01:01:26,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:01:26,617 INFO L225 Difference]: With dead ends: 870 [2024-11-19 01:01:26,617 INFO L226 Difference]: Without dead ends: 610 [2024-11-19 01:01:26,618 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=72, Invalid=528, Unknown=0, NotChecked=0, Total=600 [2024-11-19 01:01:26,618 INFO L432 NwaCegarLoop]: 280 mSDtfsCounter, 413 mSDsluCounter, 1745 mSDsCounter, 0 mSdLazyCounter, 368 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 413 SdHoareTripleChecker+Valid, 2025 SdHoareTripleChecker+Invalid, 415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 01:01:26,619 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [413 Valid, 2025 Invalid, 415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 368 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 01:01:26,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 610 states. [2024-11-19 01:01:26,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 610 to 271. [2024-11-19 01:01:26,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 271 states, 243 states have (on average 1.374485596707819) internal successors, (334), 244 states have internal predecessors, (334), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-19 01:01:26,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 384 transitions. [2024-11-19 01:01:26,642 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 384 transitions. Word has length 180 [2024-11-19 01:01:26,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:01:26,644 INFO L471 AbstractCegarLoop]: Abstraction has 271 states and 384 transitions. [2024-11-19 01:01:26,644 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.8) internal successors, (68), 10 states have internal predecessors, (68), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-19 01:01:26,644 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 384 transitions. [2024-11-19 01:01:26,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2024-11-19 01:01:26,645 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:01:26,646 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:01:26,663 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-19 01:01:26,849 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 01:01:26,850 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:01:26,850 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:01:26,850 INFO L85 PathProgramCache]: Analyzing trace with hash -1416830570, now seen corresponding path program 1 times [2024-11-19 01:01:26,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:01:26,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015749448] [2024-11-19 01:01:26,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:01:26,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:01:26,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:01:27,148 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-19 01:01:27,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:01:27,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015749448] [2024-11-19 01:01:27,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2015749448] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:01:27,150 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:01:27,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 01:01:27,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628143954] [2024-11-19 01:01:27,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:01:27,151 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 01:01:27,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:01:27,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 01:01:27,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-19 01:01:27,153 INFO L87 Difference]: Start difference. First operand 271 states and 384 transitions. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-19 01:01:27,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:01:27,459 INFO L93 Difference]: Finished difference Result 872 states and 1238 transitions. [2024-11-19 01:01:27,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 01:01:27,460 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 180 [2024-11-19 01:01:27,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:01:27,463 INFO L225 Difference]: With dead ends: 872 [2024-11-19 01:01:27,463 INFO L226 Difference]: Without dead ends: 604 [2024-11-19 01:01:27,463 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-11-19 01:01:27,464 INFO L432 NwaCegarLoop]: 407 mSDtfsCounter, 325 mSDsluCounter, 1305 mSDsCounter, 0 mSdLazyCounter, 283 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 325 SdHoareTripleChecker+Valid, 1712 SdHoareTripleChecker+Invalid, 284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 01:01:27,464 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [325 Valid, 1712 Invalid, 284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 283 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 01:01:27,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 604 states. [2024-11-19 01:01:27,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 604 to 271. [2024-11-19 01:01:27,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 271 states, 243 states have (on average 1.3662551440329218) internal successors, (332), 244 states have internal predecessors, (332), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-19 01:01:27,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 382 transitions. [2024-11-19 01:01:27,482 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 382 transitions. Word has length 180 [2024-11-19 01:01:27,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:01:27,483 INFO L471 AbstractCegarLoop]: Abstraction has 271 states and 382 transitions. [2024-11-19 01:01:27,483 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-19 01:01:27,483 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 382 transitions. [2024-11-19 01:01:27,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2024-11-19 01:01:27,485 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:01:27,485 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:01:27,485 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-19 01:01:27,485 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:01:27,486 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:01:27,486 INFO L85 PathProgramCache]: Analyzing trace with hash 576235292, now seen corresponding path program 1 times [2024-11-19 01:01:27,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:01:27,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330099932] [2024-11-19 01:01:27,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:01:27,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:01:27,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:01:27,826 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-19 01:01:27,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:01:27,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330099932] [2024-11-19 01:01:27,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [330099932] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:01:27,827 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:01:27,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 01:01:27,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258590021] [2024-11-19 01:01:27,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:01:27,827 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 01:01:27,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:01:27,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 01:01:27,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-19 01:01:27,828 INFO L87 Difference]: Start difference. First operand 271 states and 382 transitions. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-19 01:01:27,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:01:27,921 INFO L93 Difference]: Finished difference Result 701 states and 992 transitions. [2024-11-19 01:01:27,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 01:01:27,922 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 180 [2024-11-19 01:01:27,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:01:27,924 INFO L225 Difference]: With dead ends: 701 [2024-11-19 01:01:27,924 INFO L226 Difference]: Without dead ends: 433 [2024-11-19 01:01:27,925 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-19 01:01:27,925 INFO L432 NwaCegarLoop]: 273 mSDtfsCounter, 148 mSDsluCounter, 968 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 1241 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 01:01:27,925 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 1241 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 01:01:27,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 433 states. [2024-11-19 01:01:27,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 433 to 279. [2024-11-19 01:01:27,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 279 states, 251 states have (on average 1.3705179282868525) internal successors, (344), 252 states have internal predecessors, (344), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-19 01:01:27,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 394 transitions. [2024-11-19 01:01:27,944 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 394 transitions. Word has length 180 [2024-11-19 01:01:27,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:01:27,944 INFO L471 AbstractCegarLoop]: Abstraction has 279 states and 394 transitions. [2024-11-19 01:01:27,944 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-19 01:01:27,944 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 394 transitions. [2024-11-19 01:01:27,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2024-11-19 01:01:27,946 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:01:27,946 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:01:27,946 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-19 01:01:27,946 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:01:27,946 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:01:27,946 INFO L85 PathProgramCache]: Analyzing trace with hash -444833062, now seen corresponding path program 1 times [2024-11-19 01:01:27,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:01:27,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639836614] [2024-11-19 01:01:27,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:01:27,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:01:27,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:01:28,195 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-19 01:01:28,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:01:28,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [639836614] [2024-11-19 01:01:28,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [639836614] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:01:28,195 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:01:28,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 01:01:28,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004336022] [2024-11-19 01:01:28,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:01:28,196 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 01:01:28,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:01:28,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 01:01:28,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-19 01:01:28,197 INFO L87 Difference]: Start difference. First operand 279 states and 394 transitions. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-19 01:01:28,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:01:28,348 INFO L93 Difference]: Finished difference Result 831 states and 1172 transitions. [2024-11-19 01:01:28,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 01:01:28,348 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 180 [2024-11-19 01:01:28,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:01:28,351 INFO L225 Difference]: With dead ends: 831 [2024-11-19 01:01:28,351 INFO L226 Difference]: Without dead ends: 555 [2024-11-19 01:01:28,352 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-19 01:01:28,352 INFO L432 NwaCegarLoop]: 269 mSDtfsCounter, 166 mSDsluCounter, 829 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 1098 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 01:01:28,352 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [166 Valid, 1098 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 01:01:28,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2024-11-19 01:01:28,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 339. [2024-11-19 01:01:28,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 311 states have (on average 1.3954983922829582) internal successors, (434), 312 states have internal predecessors, (434), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-19 01:01:28,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 484 transitions. [2024-11-19 01:01:28,378 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 484 transitions. Word has length 180 [2024-11-19 01:01:28,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:01:28,378 INFO L471 AbstractCegarLoop]: Abstraction has 339 states and 484 transitions. [2024-11-19 01:01:28,379 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-19 01:01:28,379 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 484 transitions. [2024-11-19 01:01:28,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2024-11-19 01:01:28,380 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:01:28,380 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:01:28,380 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-19 01:01:28,381 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:01:28,381 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:01:28,381 INFO L85 PathProgramCache]: Analyzing trace with hash 898125811, now seen corresponding path program 1 times [2024-11-19 01:01:28,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:01:28,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218266349] [2024-11-19 01:01:28,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:01:28,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:01:28,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:01:28,533 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-19 01:01:28,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:01:28,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218266349] [2024-11-19 01:01:28,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [218266349] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:01:28,533 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:01:28,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 01:01:28,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887053864] [2024-11-19 01:01:28,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:01:28,534 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 01:01:28,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:01:28,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 01:01:28,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 01:01:28,534 INFO L87 Difference]: Start difference. First operand 339 states and 484 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-19 01:01:28,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:01:28,679 INFO L93 Difference]: Finished difference Result 925 states and 1332 transitions. [2024-11-19 01:01:28,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 01:01:28,680 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 180 [2024-11-19 01:01:28,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:01:28,682 INFO L225 Difference]: With dead ends: 925 [2024-11-19 01:01:28,682 INFO L226 Difference]: Without dead ends: 589 [2024-11-19 01:01:28,683 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-19 01:01:28,683 INFO L432 NwaCegarLoop]: 293 mSDtfsCounter, 167 mSDsluCounter, 695 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 988 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 01:01:28,683 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [167 Valid, 988 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 01:01:28,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 589 states. [2024-11-19 01:01:28,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 589 to 339. [2024-11-19 01:01:28,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 311 states have (on average 1.3762057877813505) internal successors, (428), 312 states have internal predecessors, (428), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-19 01:01:28,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 478 transitions. [2024-11-19 01:01:28,706 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 478 transitions. Word has length 180 [2024-11-19 01:01:28,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:01:28,706 INFO L471 AbstractCegarLoop]: Abstraction has 339 states and 478 transitions. [2024-11-19 01:01:28,706 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-19 01:01:28,706 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 478 transitions. [2024-11-19 01:01:28,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2024-11-19 01:01:28,708 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:01:28,708 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:01:28,708 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-19 01:01:28,708 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:01:28,708 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:01:28,709 INFO L85 PathProgramCache]: Analyzing trace with hash 256766812, now seen corresponding path program 1 times [2024-11-19 01:01:28,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:01:28,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185684539] [2024-11-19 01:01:28,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:01:28,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:01:28,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:01:28,794 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-19 01:01:28,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:01:28,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185684539] [2024-11-19 01:01:28,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1185684539] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:01:28,795 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:01:28,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 01:01:28,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617185259] [2024-11-19 01:01:28,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:01:28,796 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 01:01:28,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:01:28,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 01:01:28,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 01:01:28,797 INFO L87 Difference]: Start difference. First operand 339 states and 478 transitions. Second operand has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-19 01:01:28,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:01:28,829 INFO L93 Difference]: Finished difference Result 641 states and 902 transitions. [2024-11-19 01:01:28,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 01:01:28,830 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 180 [2024-11-19 01:01:28,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:01:28,831 INFO L225 Difference]: With dead ends: 641 [2024-11-19 01:01:28,831 INFO L226 Difference]: Without dead ends: 305 [2024-11-19 01:01:28,832 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 01:01:28,832 INFO L432 NwaCegarLoop]: 181 mSDtfsCounter, 1 mSDsluCounter, 353 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 534 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 01:01:28,832 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 534 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 01:01:28,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2024-11-19 01:01:28,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 305. [2024-11-19 01:01:28,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 305 states, 277 states have (on average 1.3537906137184115) internal successors, (375), 278 states have internal predecessors, (375), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-19 01:01:28,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 425 transitions. [2024-11-19 01:01:28,852 INFO L78 Accepts]: Start accepts. Automaton has 305 states and 425 transitions. Word has length 180 [2024-11-19 01:01:28,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:01:28,853 INFO L471 AbstractCegarLoop]: Abstraction has 305 states and 425 transitions. [2024-11-19 01:01:28,853 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-19 01:01:28,853 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 425 transitions. [2024-11-19 01:01:28,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2024-11-19 01:01:28,854 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:01:28,854 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:01:28,855 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-19 01:01:28,855 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:01:28,855 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:01:28,855 INFO L85 PathProgramCache]: Analyzing trace with hash -1900634344, now seen corresponding path program 1 times [2024-11-19 01:01:28,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:01:28,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939631242] [2024-11-19 01:01:28,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:01:28,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:01:28,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:01:28,960 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-19 01:01:28,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:01:28,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939631242] [2024-11-19 01:01:28,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1939631242] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:01:28,960 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:01:28,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 01:01:28,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311115800] [2024-11-19 01:01:28,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:01:28,961 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 01:01:28,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:01:28,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 01:01:28,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 01:01:28,962 INFO L87 Difference]: Start difference. First operand 305 states and 425 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-19 01:01:28,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:01:28,999 INFO L93 Difference]: Finished difference Result 613 states and 855 transitions. [2024-11-19 01:01:29,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 01:01:29,001 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 181 [2024-11-19 01:01:29,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:01:29,002 INFO L225 Difference]: With dead ends: 613 [2024-11-19 01:01:29,003 INFO L226 Difference]: Without dead ends: 311 [2024-11-19 01:01:29,003 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 01:01:29,003 INFO L432 NwaCegarLoop]: 180 mSDtfsCounter, 1 mSDsluCounter, 527 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 707 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 01:01:29,004 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 707 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 01:01:29,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2024-11-19 01:01:29,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 311. [2024-11-19 01:01:29,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 311 states, 283 states have (on average 1.3462897526501767) internal successors, (381), 284 states have internal predecessors, (381), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-19 01:01:29,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 431 transitions. [2024-11-19 01:01:29,024 INFO L78 Accepts]: Start accepts. Automaton has 311 states and 431 transitions. Word has length 181 [2024-11-19 01:01:29,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:01:29,025 INFO L471 AbstractCegarLoop]: Abstraction has 311 states and 431 transitions. [2024-11-19 01:01:29,025 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-19 01:01:29,025 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states and 431 transitions. [2024-11-19 01:01:29,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2024-11-19 01:01:29,026 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:01:29,026 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:01:29,026 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-19 01:01:29,026 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:01:29,026 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:01:29,027 INFO L85 PathProgramCache]: Analyzing trace with hash -1973020902, now seen corresponding path program 1 times [2024-11-19 01:01:29,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:01:29,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708786866] [2024-11-19 01:01:29,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:01:29,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:01:29,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:01:29,327 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-19 01:01:29,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:01:29,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708786866] [2024-11-19 01:01:29,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1708786866] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:01:29,328 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:01:29,328 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 01:01:29,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454365674] [2024-11-19 01:01:29,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:01:29,328 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 01:01:29,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:01:29,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 01:01:29,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-19 01:01:29,329 INFO L87 Difference]: Start difference. First operand 311 states and 431 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-19 01:01:29,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:01:29,553 INFO L93 Difference]: Finished difference Result 789 states and 1094 transitions. [2024-11-19 01:01:29,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 01:01:29,554 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 181 [2024-11-19 01:01:29,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:01:29,556 INFO L225 Difference]: With dead ends: 789 [2024-11-19 01:01:29,556 INFO L226 Difference]: Without dead ends: 481 [2024-11-19 01:01:29,556 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-19 01:01:29,557 INFO L432 NwaCegarLoop]: 323 mSDtfsCounter, 322 mSDsluCounter, 673 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 322 SdHoareTripleChecker+Valid, 996 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 01:01:29,557 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [322 Valid, 996 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 01:01:29,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2024-11-19 01:01:29,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 308. [2024-11-19 01:01:29,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 308 states, 280 states have (on average 1.3464285714285715) internal successors, (377), 281 states have internal predecessors, (377), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-19 01:01:29,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 427 transitions. [2024-11-19 01:01:29,578 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 427 transitions. Word has length 181 [2024-11-19 01:01:29,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:01:29,579 INFO L471 AbstractCegarLoop]: Abstraction has 308 states and 427 transitions. [2024-11-19 01:01:29,579 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-19 01:01:29,579 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 427 transitions. [2024-11-19 01:01:29,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2024-11-19 01:01:29,580 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:01:29,580 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:01:29,580 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-19 01:01:29,581 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:01:29,581 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:01:29,581 INFO L85 PathProgramCache]: Analyzing trace with hash 1654071006, now seen corresponding path program 1 times [2024-11-19 01:01:29,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:01:29,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116942405] [2024-11-19 01:01:29,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:01:29,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:01:29,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:01:29,901 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-19 01:01:29,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:01:29,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2116942405] [2024-11-19 01:01:29,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2116942405] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:01:29,902 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:01:29,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 01:01:29,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433433476] [2024-11-19 01:01:29,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:01:29,902 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 01:01:29,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:01:29,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 01:01:29,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-19 01:01:29,903 INFO L87 Difference]: Start difference. First operand 308 states and 427 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-19 01:01:30,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:01:30,093 INFO L93 Difference]: Finished difference Result 737 states and 1023 transitions. [2024-11-19 01:01:30,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 01:01:30,094 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 181 [2024-11-19 01:01:30,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:01:30,095 INFO L225 Difference]: With dead ends: 737 [2024-11-19 01:01:30,095 INFO L226 Difference]: Without dead ends: 432 [2024-11-19 01:01:30,096 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-19 01:01:30,097 INFO L432 NwaCegarLoop]: 189 mSDtfsCounter, 322 mSDsluCounter, 451 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 322 SdHoareTripleChecker+Valid, 640 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 01:01:30,097 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [322 Valid, 640 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 01:01:30,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432 states. [2024-11-19 01:01:30,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 308. [2024-11-19 01:01:30,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 308 states, 280 states have (on average 1.3428571428571427) internal successors, (376), 281 states have internal predecessors, (376), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-19 01:01:30,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 426 transitions. [2024-11-19 01:01:30,134 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 426 transitions. Word has length 181 [2024-11-19 01:01:30,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:01:30,134 INFO L471 AbstractCegarLoop]: Abstraction has 308 states and 426 transitions. [2024-11-19 01:01:30,134 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-19 01:01:30,134 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 426 transitions. [2024-11-19 01:01:30,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2024-11-19 01:01:30,136 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:01:30,136 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:01:30,136 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-19 01:01:30,136 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:01:30,136 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:01:30,136 INFO L85 PathProgramCache]: Analyzing trace with hash 633002652, now seen corresponding path program 1 times [2024-11-19 01:01:30,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:01:30,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040630916] [2024-11-19 01:01:30,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:01:30,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:01:30,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:01:30,620 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 42 proven. 24 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-19 01:01:30,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:01:30,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2040630916] [2024-11-19 01:01:30,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2040630916] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 01:01:30,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1921266142] [2024-11-19 01:01:30,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:01:30,621 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 01:01:30,621 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 01:01:30,623 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) [2024-11-19 01:01:30,624 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-19 01:01:30,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:01:30,817 INFO L255 TraceCheckSpWp]: Trace formula consists of 684 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-19 01:01:30,821 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 01:01:30,840 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 11 treesize of output 7 [2024-11-19 01:01:30,871 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 11 treesize of output 7 [2024-11-19 01:01:30,935 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-19 01:01:30,935 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 01:01:30,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1921266142] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:01:30,935 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 01:01:30,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [10] total 16 [2024-11-19 01:01:30,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273029768] [2024-11-19 01:01:30,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:01:30,936 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 01:01:30,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:01:30,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 01:01:30,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=209, Unknown=0, NotChecked=0, Total=240 [2024-11-19 01:01:30,937 INFO L87 Difference]: Start difference. First operand 308 states and 426 transitions. Second operand has 8 states, 8 states have (on average 8.625) internal successors, (69), 8 states have internal predecessors, (69), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-19 01:01:31,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:01:31,219 INFO L93 Difference]: Finished difference Result 932 states and 1297 transitions. [2024-11-19 01:01:31,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-19 01:01:31,219 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.625) internal successors, (69), 8 states have internal predecessors, (69), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 181 [2024-11-19 01:01:31,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:01:31,222 INFO L225 Difference]: With dead ends: 932 [2024-11-19 01:01:31,222 INFO L226 Difference]: Without dead ends: 627 [2024-11-19 01:01:31,224 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=56, Invalid=364, Unknown=0, NotChecked=0, Total=420 [2024-11-19 01:01:31,224 INFO L432 NwaCegarLoop]: 462 mSDtfsCounter, 332 mSDsluCounter, 2094 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 332 SdHoareTripleChecker+Valid, 2556 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 01:01:31,224 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [332 Valid, 2556 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 01:01:31,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 627 states. [2024-11-19 01:01:31,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 627 to 312. [2024-11-19 01:01:31,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312 states, 284 states have (on average 1.341549295774648) internal successors, (381), 285 states have internal predecessors, (381), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-19 01:01:31,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 431 transitions. [2024-11-19 01:01:31,244 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 431 transitions. Word has length 181 [2024-11-19 01:01:31,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:01:31,245 INFO L471 AbstractCegarLoop]: Abstraction has 312 states and 431 transitions. [2024-11-19 01:01:31,245 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.625) internal successors, (69), 8 states have internal predecessors, (69), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-19 01:01:31,245 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 431 transitions. [2024-11-19 01:01:31,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2024-11-19 01:01:31,247 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:01:31,247 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:01:31,264 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-19 01:01:31,447 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-19 01:01:31,448 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:01:31,448 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:01:31,448 INFO L85 PathProgramCache]: Analyzing trace with hash 2112639665, now seen corresponding path program 1 times [2024-11-19 01:01:31,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:01:31,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922943908] [2024-11-19 01:01:31,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:01:31,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:01:31,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:01:31,511 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-19 01:01:31,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:01:31,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922943908] [2024-11-19 01:01:31,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [922943908] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:01:31,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:01:31,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 01:01:31,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491191330] [2024-11-19 01:01:31,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:01:31,513 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 01:01:31,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:01:31,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 01:01:31,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 01:01:31,513 INFO L87 Difference]: Start difference. First operand 312 states and 431 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-19 01:01:31,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:01:31,535 INFO L93 Difference]: Finished difference Result 622 states and 861 transitions. [2024-11-19 01:01:31,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 01:01:31,535 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 182 [2024-11-19 01:01:31,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:01:31,537 INFO L225 Difference]: With dead ends: 622 [2024-11-19 01:01:31,537 INFO L226 Difference]: Without dead ends: 313 [2024-11-19 01:01:31,538 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 01:01:31,538 INFO L432 NwaCegarLoop]: 183 mSDtfsCounter, 0 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 01:01:31,538 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 360 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 01:01:31,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2024-11-19 01:01:31,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 313. [2024-11-19 01:01:31,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 313 states, 285 states have (on average 1.3403508771929824) internal successors, (382), 286 states have internal predecessors, (382), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-19 01:01:31,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 432 transitions. [2024-11-19 01:01:31,556 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 432 transitions. Word has length 182 [2024-11-19 01:01:31,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:01:31,556 INFO L471 AbstractCegarLoop]: Abstraction has 313 states and 432 transitions. [2024-11-19 01:01:31,556 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-19 01:01:31,556 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 432 transitions. [2024-11-19 01:01:31,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2024-11-19 01:01:31,557 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:01:31,558 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:01:31,558 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-19 01:01:31,558 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:01:31,558 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:01:31,558 INFO L85 PathProgramCache]: Analyzing trace with hash 1083280367, now seen corresponding path program 1 times [2024-11-19 01:01:31,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:01:31,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753952707] [2024-11-19 01:01:31,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:01:31,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:01:31,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:01:31,718 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-19 01:01:31,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:01:31,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753952707] [2024-11-19 01:01:31,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1753952707] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:01:31,719 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:01:31,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 01:01:31,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34708506] [2024-11-19 01:01:31,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:01:31,720 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 01:01:31,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:01:31,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 01:01:31,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 01:01:31,721 INFO L87 Difference]: Start difference. First operand 313 states and 432 transitions. Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-19 01:01:31,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:01:31,761 INFO L93 Difference]: Finished difference Result 540 states and 744 transitions. [2024-11-19 01:01:31,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 01:01:31,761 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 182 [2024-11-19 01:01:31,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:01:31,764 INFO L225 Difference]: With dead ends: 540 [2024-11-19 01:01:31,764 INFO L226 Difference]: Without dead ends: 230 [2024-11-19 01:01:31,765 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 01:01:31,765 INFO L432 NwaCegarLoop]: 176 mSDtfsCounter, 0 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 513 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 01:01:31,765 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 513 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 01:01:31,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2024-11-19 01:01:31,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 229. [2024-11-19 01:01:31,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229 states, 201 states have (on average 1.308457711442786) internal successors, (263), 202 states have internal predecessors, (263), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-19 01:01:31,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 313 transitions. [2024-11-19 01:01:31,782 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 313 transitions. Word has length 182 [2024-11-19 01:01:31,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:01:31,782 INFO L471 AbstractCegarLoop]: Abstraction has 229 states and 313 transitions. [2024-11-19 01:01:31,783 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-19 01:01:31,783 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 313 transitions. [2024-11-19 01:01:31,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2024-11-19 01:01:31,784 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:01:31,784 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:01:31,784 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-19 01:01:31,784 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:01:31,785 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:01:31,785 INFO L85 PathProgramCache]: Analyzing trace with hash -621272487, now seen corresponding path program 1 times [2024-11-19 01:01:31,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:01:31,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285644766] [2024-11-19 01:01:31,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:01:31,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:01:31,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:01:32,115 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-19 01:01:32,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:01:32,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285644766] [2024-11-19 01:01:32,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [285644766] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:01:32,115 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:01:32,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-19 01:01:32,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871703346] [2024-11-19 01:01:32,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:01:32,115 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 01:01:32,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:01:32,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 01:01:32,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-19 01:01:32,116 INFO L87 Difference]: Start difference. First operand 229 states and 313 transitions. Second operand has 8 states, 8 states have (on average 8.875) internal successors, (71), 8 states have internal predecessors, (71), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-19 01:01:32,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:01:32,234 INFO L93 Difference]: Finished difference Result 517 states and 710 transitions. [2024-11-19 01:01:32,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 01:01:32,234 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.875) internal successors, (71), 8 states have internal predecessors, (71), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 183 [2024-11-19 01:01:32,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:01:32,237 INFO L225 Difference]: With dead ends: 517 [2024-11-19 01:01:32,237 INFO L226 Difference]: Without dead ends: 291 [2024-11-19 01:01:32,238 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2024-11-19 01:01:32,239 INFO L432 NwaCegarLoop]: 242 mSDtfsCounter, 164 mSDsluCounter, 1260 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 1502 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 01:01:32,239 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 1502 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 01:01:32,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2024-11-19 01:01:32,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 235. [2024-11-19 01:01:32,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 235 states, 207 states have (on average 1.2995169082125604) internal successors, (269), 208 states have internal predecessors, (269), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-19 01:01:32,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 319 transitions. [2024-11-19 01:01:32,256 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 319 transitions. Word has length 183 [2024-11-19 01:01:32,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:01:32,257 INFO L471 AbstractCegarLoop]: Abstraction has 235 states and 319 transitions. [2024-11-19 01:01:32,258 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.875) internal successors, (71), 8 states have internal predecessors, (71), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-19 01:01:32,258 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 319 transitions. [2024-11-19 01:01:32,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2024-11-19 01:01:32,259 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:01:32,259 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:01:32,259 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-19 01:01:32,259 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:01:32,259 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:01:32,260 INFO L85 PathProgramCache]: Analyzing trace with hash -67911810, now seen corresponding path program 1 times [2024-11-19 01:01:32,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:01:32,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727155573] [2024-11-19 01:01:32,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:01:32,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:01:32,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:01:32,337 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-19 01:01:32,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:01:32,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727155573] [2024-11-19 01:01:32,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727155573] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:01:32,338 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:01:32,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 01:01:32,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731863358] [2024-11-19 01:01:32,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:01:32,338 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 01:01:32,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:01:32,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 01:01:32,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 01:01:32,339 INFO L87 Difference]: Start difference. First operand 235 states and 319 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-19 01:01:32,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:01:32,361 INFO L93 Difference]: Finished difference Result 469 states and 639 transitions. [2024-11-19 01:01:32,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 01:01:32,361 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 185 [2024-11-19 01:01:32,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:01:32,362 INFO L225 Difference]: With dead ends: 469 [2024-11-19 01:01:32,362 INFO L226 Difference]: Without dead ends: 237 [2024-11-19 01:01:32,363 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 01:01:32,363 INFO L432 NwaCegarLoop]: 178 mSDtfsCounter, 0 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 01:01:32,364 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 350 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 01:01:32,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2024-11-19 01:01:32,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 237. [2024-11-19 01:01:32,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 209 states have (on average 1.2966507177033493) internal successors, (271), 210 states have internal predecessors, (271), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-19 01:01:32,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 321 transitions. [2024-11-19 01:01:32,379 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 321 transitions. Word has length 185 [2024-11-19 01:01:32,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:01:32,379 INFO L471 AbstractCegarLoop]: Abstraction has 237 states and 321 transitions. [2024-11-19 01:01:32,380 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-19 01:01:32,380 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 321 transitions. [2024-11-19 01:01:32,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2024-11-19 01:01:32,381 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:01:32,381 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:01:32,381 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-19 01:01:32,381 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:01:32,381 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:01:32,382 INFO L85 PathProgramCache]: Analyzing trace with hash -1656259712, now seen corresponding path program 1 times [2024-11-19 01:01:32,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:01:32,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376947755] [2024-11-19 01:01:32,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:01:32,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:01:32,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:01:32,539 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-19 01:01:32,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:01:32,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376947755] [2024-11-19 01:01:32,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1376947755] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:01:32,541 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:01:32,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 01:01:32,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14046626] [2024-11-19 01:01:32,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:01:32,542 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 01:01:32,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:01:32,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 01:01:32,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 01:01:32,543 INFO L87 Difference]: Start difference. First operand 237 states and 321 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-19 01:01:32,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:01:32,607 INFO L93 Difference]: Finished difference Result 539 states and 732 transitions. [2024-11-19 01:01:32,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 01:01:32,608 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 185 [2024-11-19 01:01:32,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:01:32,609 INFO L225 Difference]: With dead ends: 539 [2024-11-19 01:01:32,609 INFO L226 Difference]: Without dead ends: 305 [2024-11-19 01:01:32,610 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-19 01:01:32,610 INFO L432 NwaCegarLoop]: 187 mSDtfsCounter, 51 mSDsluCounter, 525 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 712 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 01:01:32,610 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 712 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 01:01:32,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2024-11-19 01:01:32,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 237. [2024-11-19 01:01:32,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 209 states have (on average 1.2870813397129186) internal successors, (269), 210 states have internal predecessors, (269), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-19 01:01:32,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 319 transitions. [2024-11-19 01:01:32,636 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 319 transitions. Word has length 185 [2024-11-19 01:01:32,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:01:32,637 INFO L471 AbstractCegarLoop]: Abstraction has 237 states and 319 transitions. [2024-11-19 01:01:32,637 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-19 01:01:32,637 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 319 transitions. [2024-11-19 01:01:32,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2024-11-19 01:01:32,638 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:01:32,639 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:01:32,639 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-19 01:01:32,639 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:01:32,639 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:01:32,639 INFO L85 PathProgramCache]: Analyzing trace with hash 1358843906, now seen corresponding path program 1 times [2024-11-19 01:01:32,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:01:32,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481221377] [2024-11-19 01:01:32,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:01:32,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:01:32,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:01:32,904 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-19 01:01:32,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:01:32,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481221377] [2024-11-19 01:01:32,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1481221377] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:01:32,905 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:01:32,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 01:01:32,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119382842] [2024-11-19 01:01:32,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:01:32,906 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 01:01:32,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:01:32,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 01:01:32,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-19 01:01:32,906 INFO L87 Difference]: Start difference. First operand 237 states and 319 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-19 01:01:32,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:01:32,959 INFO L93 Difference]: Finished difference Result 634 states and 852 transitions. [2024-11-19 01:01:32,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 01:01:32,959 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 185 [2024-11-19 01:01:32,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:01:32,961 INFO L225 Difference]: With dead ends: 634 [2024-11-19 01:01:32,961 INFO L226 Difference]: Without dead ends: 400 [2024-11-19 01:01:32,961 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-19 01:01:32,962 INFO L432 NwaCegarLoop]: 204 mSDtfsCounter, 73 mSDsluCounter, 551 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 755 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 01:01:32,962 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 755 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 01:01:32,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 400 states. [2024-11-19 01:01:32,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 400 to 330. [2024-11-19 01:01:32,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 330 states, 302 states have (on average 1.2880794701986755) internal successors, (389), 303 states have internal predecessors, (389), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-19 01:01:32,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 439 transitions. [2024-11-19 01:01:32,979 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 439 transitions. Word has length 185 [2024-11-19 01:01:32,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:01:32,979 INFO L471 AbstractCegarLoop]: Abstraction has 330 states and 439 transitions. [2024-11-19 01:01:32,979 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-19 01:01:32,979 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 439 transitions. [2024-11-19 01:01:32,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2024-11-19 01:01:32,981 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:01:32,981 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:01:32,981 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-19 01:01:32,981 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:01:32,981 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:01:32,981 INFO L85 PathProgramCache]: Analyzing trace with hash 1782490628, now seen corresponding path program 1 times [2024-11-19 01:01:32,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:01:32,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078142383] [2024-11-19 01:01:32,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:01:32,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:01:33,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:01:33,130 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-19 01:01:33,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:01:33,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2078142383] [2024-11-19 01:01:33,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2078142383] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:01:33,130 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:01:33,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 01:01:33,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456817177] [2024-11-19 01:01:33,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:01:33,131 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 01:01:33,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:01:33,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 01:01:33,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 01:01:33,131 INFO L87 Difference]: Start difference. First operand 330 states and 439 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-19 01:01:33,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:01:33,164 INFO L93 Difference]: Finished difference Result 647 states and 863 transitions. [2024-11-19 01:01:33,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 01:01:33,164 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 185 [2024-11-19 01:01:33,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:01:33,165 INFO L225 Difference]: With dead ends: 647 [2024-11-19 01:01:33,165 INFO L226 Difference]: Without dead ends: 320 [2024-11-19 01:01:33,166 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 01:01:33,166 INFO L432 NwaCegarLoop]: 171 mSDtfsCounter, 0 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 499 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 01:01:33,166 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 499 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 01:01:33,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2024-11-19 01:01:33,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 318. [2024-11-19 01:01:33,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 318 states, 290 states have (on average 1.2862068965517242) internal successors, (373), 291 states have internal predecessors, (373), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-19 01:01:33,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 423 transitions. [2024-11-19 01:01:33,189 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 423 transitions. Word has length 185 [2024-11-19 01:01:33,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:01:33,189 INFO L471 AbstractCegarLoop]: Abstraction has 318 states and 423 transitions. [2024-11-19 01:01:33,189 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-19 01:01:33,189 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 423 transitions. [2024-11-19 01:01:33,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2024-11-19 01:01:33,190 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:01:33,190 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:01:33,190 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-19 01:01:33,190 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:01:33,191 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:01:33,191 INFO L85 PathProgramCache]: Analyzing trace with hash -730884783, now seen corresponding path program 1 times [2024-11-19 01:01:33,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:01:33,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590767861] [2024-11-19 01:01:33,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:01:33,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:01:33,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:01:33,564 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-19 01:01:33,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:01:33,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590767861] [2024-11-19 01:01:33,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [590767861] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:01:33,565 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:01:33,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-19 01:01:33,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630134796] [2024-11-19 01:01:33,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:01:33,565 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 01:01:33,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:01:33,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 01:01:33,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-19 01:01:33,566 INFO L87 Difference]: Start difference. First operand 318 states and 423 transitions. Second operand has 9 states, 9 states have (on average 8.333333333333334) internal successors, (75), 9 states have internal predecessors, (75), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-19 01:01:33,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:01:33,681 INFO L93 Difference]: Finished difference Result 791 states and 1047 transitions. [2024-11-19 01:01:33,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 01:01:33,682 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.333333333333334) internal successors, (75), 9 states have internal predecessors, (75), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 187 [2024-11-19 01:01:33,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:01:33,684 INFO L225 Difference]: With dead ends: 791 [2024-11-19 01:01:33,684 INFO L226 Difference]: Without dead ends: 476 [2024-11-19 01:01:33,684 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2024-11-19 01:01:33,685 INFO L432 NwaCegarLoop]: 254 mSDtfsCounter, 157 mSDsluCounter, 1659 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 1913 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 01:01:33,685 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 1913 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 01:01:33,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2024-11-19 01:01:33,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 367. [2024-11-19 01:01:33,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 367 states, 339 states have (on average 1.2625368731563422) internal successors, (428), 340 states have internal predecessors, (428), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-19 01:01:33,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 367 states to 367 states and 478 transitions. [2024-11-19 01:01:33,710 INFO L78 Accepts]: Start accepts. Automaton has 367 states and 478 transitions. Word has length 187 [2024-11-19 01:01:33,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:01:33,710 INFO L471 AbstractCegarLoop]: Abstraction has 367 states and 478 transitions. [2024-11-19 01:01:33,711 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.333333333333334) internal successors, (75), 9 states have internal predecessors, (75), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-19 01:01:33,711 INFO L276 IsEmpty]: Start isEmpty. Operand 367 states and 478 transitions. [2024-11-19 01:01:33,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2024-11-19 01:01:33,713 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:01:33,713 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:01:33,713 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-19 01:01:33,713 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:01:33,713 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:01:33,713 INFO L85 PathProgramCache]: Analyzing trace with hash -472719345, now seen corresponding path program 1 times [2024-11-19 01:01:33,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:01:33,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100534001] [2024-11-19 01:01:33,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:01:33,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:01:33,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:01:33,802 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-19 01:01:33,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:01:33,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100534001] [2024-11-19 01:01:33,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [100534001] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:01:33,802 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:01:33,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 01:01:33,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993323808] [2024-11-19 01:01:33,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:01:33,803 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 01:01:33,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:01:33,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 01:01:33,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 01:01:33,804 INFO L87 Difference]: Start difference. First operand 367 states and 478 transitions. Second operand has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-19 01:01:33,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:01:33,838 INFO L93 Difference]: Finished difference Result 738 states and 963 transitions. [2024-11-19 01:01:33,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 01:01:33,838 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 187 [2024-11-19 01:01:33,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:01:33,840 INFO L225 Difference]: With dead ends: 738 [2024-11-19 01:01:33,840 INFO L226 Difference]: Without dead ends: 374 [2024-11-19 01:01:33,841 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 01:01:33,842 INFO L432 NwaCegarLoop]: 171 mSDtfsCounter, 1 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 502 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 01:01:33,842 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 502 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 01:01:33,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 374 states. [2024-11-19 01:01:33,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 374 to 373. [2024-11-19 01:01:33,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 373 states, 345 states have (on average 1.2579710144927536) internal successors, (434), 346 states have internal predecessors, (434), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-19 01:01:33,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 484 transitions. [2024-11-19 01:01:33,860 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 484 transitions. Word has length 187 [2024-11-19 01:01:33,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:01:33,860 INFO L471 AbstractCegarLoop]: Abstraction has 373 states and 484 transitions. [2024-11-19 01:01:33,860 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-19 01:01:33,861 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 484 transitions. [2024-11-19 01:01:33,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2024-11-19 01:01:33,861 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:01:33,862 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:01:33,862 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-19 01:01:33,862 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:01:33,863 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:01:33,863 INFO L85 PathProgramCache]: Analyzing trace with hash 1725337417, now seen corresponding path program 1 times [2024-11-19 01:01:33,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:01:33,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955597333] [2024-11-19 01:01:33,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:01:33,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:01:33,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:01:34,090 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-19 01:01:34,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:01:34,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955597333] [2024-11-19 01:01:34,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [955597333] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:01:34,090 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:01:34,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 01:01:34,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623801674] [2024-11-19 01:01:34,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:01:34,091 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 01:01:34,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:01:34,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 01:01:34,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-19 01:01:34,092 INFO L87 Difference]: Start difference. First operand 373 states and 484 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-19 01:01:34,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:01:34,158 INFO L93 Difference]: Finished difference Result 746 states and 966 transitions. [2024-11-19 01:01:34,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 01:01:34,158 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 188 [2024-11-19 01:01:34,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:01:34,160 INFO L225 Difference]: With dead ends: 746 [2024-11-19 01:01:34,160 INFO L226 Difference]: Without dead ends: 376 [2024-11-19 01:01:34,161 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-19 01:01:34,161 INFO L432 NwaCegarLoop]: 249 mSDtfsCounter, 77 mSDsluCounter, 545 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 794 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 01:01:34,162 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 794 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 01:01:34,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states. [2024-11-19 01:01:34,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 334. [2024-11-19 01:01:34,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 334 states, 308 states have (on average 1.2435064935064934) internal successors, (383), 308 states have internal predecessors, (383), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-19 01:01:34,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 429 transitions. [2024-11-19 01:01:34,182 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 429 transitions. Word has length 188 [2024-11-19 01:01:34,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:01:34,182 INFO L471 AbstractCegarLoop]: Abstraction has 334 states and 429 transitions. [2024-11-19 01:01:34,183 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-19 01:01:34,183 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 429 transitions. [2024-11-19 01:01:34,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2024-11-19 01:01:34,183 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:01:34,184 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:01:34,184 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-19 01:01:34,184 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:01:34,184 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:01:34,184 INFO L85 PathProgramCache]: Analyzing trace with hash 1831826601, now seen corresponding path program 1 times [2024-11-19 01:01:34,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:01:34,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628502301] [2024-11-19 01:01:34,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:01:34,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:01:34,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:01:34,289 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-19 01:01:34,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:01:34,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [628502301] [2024-11-19 01:01:34,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [628502301] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:01:34,290 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:01:34,290 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 01:01:34,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754647803] [2024-11-19 01:01:34,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:01:34,291 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 01:01:34,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:01:34,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 01:01:34,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 01:01:34,292 INFO L87 Difference]: Start difference. First operand 334 states and 429 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-19 01:01:34,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:01:34,326 INFO L93 Difference]: Finished difference Result 672 states and 864 transitions. [2024-11-19 01:01:34,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 01:01:34,327 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 189 [2024-11-19 01:01:34,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:01:34,328 INFO L225 Difference]: With dead ends: 672 [2024-11-19 01:01:34,328 INFO L226 Difference]: Without dead ends: 341 [2024-11-19 01:01:34,329 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 01:01:34,329 INFO L432 NwaCegarLoop]: 170 mSDtfsCounter, 1 mSDsluCounter, 494 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 664 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 01:01:34,331 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 664 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 01:01:34,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2024-11-19 01:01:34,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 338. [2024-11-19 01:01:34,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 338 states, 312 states have (on average 1.2403846153846154) internal successors, (387), 312 states have internal predecessors, (387), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-19 01:01:34,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 433 transitions. [2024-11-19 01:01:34,350 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 433 transitions. Word has length 189 [2024-11-19 01:01:34,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:01:34,350 INFO L471 AbstractCegarLoop]: Abstraction has 338 states and 433 transitions. [2024-11-19 01:01:34,350 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-19 01:01:34,350 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 433 transitions. [2024-11-19 01:01:34,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2024-11-19 01:01:34,351 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:01:34,351 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:01:34,351 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-19 01:01:34,352 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:01:34,352 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:01:34,352 INFO L85 PathProgramCache]: Analyzing trace with hash 551962923, now seen corresponding path program 1 times [2024-11-19 01:01:34,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:01:34,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997825510] [2024-11-19 01:01:34,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:01:34,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:01:34,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:01:34,570 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-19 01:01:34,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:01:34,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997825510] [2024-11-19 01:01:34,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [997825510] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:01:34,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:01:34,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 01:01:34,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965358522] [2024-11-19 01:01:34,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:01:34,571 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 01:01:34,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:01:34,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 01:01:34,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-19 01:01:34,571 INFO L87 Difference]: Start difference. First operand 338 states and 433 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-19 01:01:34,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:01:34,648 INFO L93 Difference]: Finished difference Result 710 states and 909 transitions. [2024-11-19 01:01:34,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 01:01:34,649 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 189 [2024-11-19 01:01:34,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:01:34,650 INFO L225 Difference]: With dead ends: 710 [2024-11-19 01:01:34,650 INFO L226 Difference]: Without dead ends: 375 [2024-11-19 01:01:34,651 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-19 01:01:34,651 INFO L432 NwaCegarLoop]: 201 mSDtfsCounter, 65 mSDsluCounter, 517 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 718 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 01:01:34,652 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 718 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 01:01:34,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2024-11-19 01:01:34,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 338. [2024-11-19 01:01:34,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 338 states, 312 states have (on average 1.2371794871794872) internal successors, (386), 312 states have internal predecessors, (386), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-19 01:01:34,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 432 transitions. [2024-11-19 01:01:34,668 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 432 transitions. Word has length 189 [2024-11-19 01:01:34,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:01:34,668 INFO L471 AbstractCegarLoop]: Abstraction has 338 states and 432 transitions. [2024-11-19 01:01:34,668 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-19 01:01:34,669 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 432 transitions. [2024-11-19 01:01:34,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-11-19 01:01:34,669 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:01:34,669 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:01:34,670 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-19 01:01:34,670 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:01:34,670 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:01:34,670 INFO L85 PathProgramCache]: Analyzing trace with hash 346704995, now seen corresponding path program 1 times [2024-11-19 01:01:34,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:01:34,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594234119] [2024-11-19 01:01:34,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:01:34,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:01:34,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:01:34,892 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-19 01:01:34,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:01:34,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594234119] [2024-11-19 01:01:34,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [594234119] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:01:34,892 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:01:34,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 01:01:34,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271973868] [2024-11-19 01:01:34,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:01:34,892 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 01:01:34,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:01:34,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 01:01:34,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-19 01:01:34,893 INFO L87 Difference]: Start difference. First operand 338 states and 432 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-19 01:01:34,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:01:34,970 INFO L93 Difference]: Finished difference Result 787 states and 1003 transitions. [2024-11-19 01:01:34,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 01:01:34,970 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 190 [2024-11-19 01:01:34,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:01:34,972 INFO L225 Difference]: With dead ends: 787 [2024-11-19 01:01:34,972 INFO L226 Difference]: Without dead ends: 452 [2024-11-19 01:01:34,972 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-19 01:01:34,973 INFO L432 NwaCegarLoop]: 258 mSDtfsCounter, 137 mSDsluCounter, 409 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 667 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 01:01:34,973 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 667 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 01:01:34,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 452 states. [2024-11-19 01:01:35,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 452 to 449. [2024-11-19 01:01:35,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 449 states, 417 states have (on average 1.2398081534772183) internal successors, (517), 418 states have internal predecessors, (517), 27 states have call successors, (27), 4 states have call predecessors, (27), 4 states have return successors, (27), 26 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-19 01:01:35,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 449 states to 449 states and 571 transitions. [2024-11-19 01:01:35,008 INFO L78 Accepts]: Start accepts. Automaton has 449 states and 571 transitions. Word has length 190 [2024-11-19 01:01:35,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:01:35,008 INFO L471 AbstractCegarLoop]: Abstraction has 449 states and 571 transitions. [2024-11-19 01:01:35,008 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-19 01:01:35,008 INFO L276 IsEmpty]: Start isEmpty. Operand 449 states and 571 transitions. [2024-11-19 01:01:35,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-11-19 01:01:35,009 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:01:35,010 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:01:35,010 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-19 01:01:35,010 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:01:35,010 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:01:35,010 INFO L85 PathProgramCache]: Analyzing trace with hash 594851489, now seen corresponding path program 1 times [2024-11-19 01:01:35,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:01:35,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670014094] [2024-11-19 01:01:35,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:01:35,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:01:35,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:01:35,340 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-19 01:01:35,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:01:35,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670014094] [2024-11-19 01:01:35,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [670014094] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:01:35,341 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:01:35,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-19 01:01:35,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207230592] [2024-11-19 01:01:35,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:01:35,342 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 01:01:35,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:01:35,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 01:01:35,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-19 01:01:35,344 INFO L87 Difference]: Start difference. First operand 449 states and 571 transitions. Second operand has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 9 states have internal predecessors, (78), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-19 01:01:35,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:01:35,529 INFO L93 Difference]: Finished difference Result 945 states and 1201 transitions. [2024-11-19 01:01:35,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-19 01:01:35,530 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 9 states have internal predecessors, (78), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 190 [2024-11-19 01:01:35,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:01:35,532 INFO L225 Difference]: With dead ends: 945 [2024-11-19 01:01:35,532 INFO L226 Difference]: Without dead ends: 499 [2024-11-19 01:01:35,533 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2024-11-19 01:01:35,533 INFO L432 NwaCegarLoop]: 264 mSDtfsCounter, 277 mSDsluCounter, 1237 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 277 SdHoareTripleChecker+Valid, 1501 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 01:01:35,534 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [277 Valid, 1501 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 01:01:35,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 499 states. [2024-11-19 01:01:35,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 499 to 492. [2024-11-19 01:01:35,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 492 states, 452 states have (on average 1.238938053097345) internal successors, (560), 454 states have internal predecessors, (560), 33 states have call successors, (33), 6 states have call predecessors, (33), 6 states have return successors, (33), 31 states have call predecessors, (33), 33 states have call successors, (33) [2024-11-19 01:01:35,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 492 states to 492 states and 626 transitions. [2024-11-19 01:01:35,582 INFO L78 Accepts]: Start accepts. Automaton has 492 states and 626 transitions. Word has length 190 [2024-11-19 01:01:35,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:01:35,582 INFO L471 AbstractCegarLoop]: Abstraction has 492 states and 626 transitions. [2024-11-19 01:01:35,582 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 9 states have internal predecessors, (78), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-19 01:01:35,583 INFO L276 IsEmpty]: Start isEmpty. Operand 492 states and 626 transitions. [2024-11-19 01:01:35,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-11-19 01:01:35,584 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:01:35,584 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:01:35,584 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-19 01:01:35,585 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:01:35,585 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:01:35,585 INFO L85 PathProgramCache]: Analyzing trace with hash -228817437, now seen corresponding path program 1 times [2024-11-19 01:01:35,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:01:35,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264140010] [2024-11-19 01:01:35,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:01:35,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:01:35,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:01:35,810 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-19 01:01:35,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:01:35,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264140010] [2024-11-19 01:01:35,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [264140010] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:01:35,810 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:01:35,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 01:01:35,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413063777] [2024-11-19 01:01:35,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:01:35,811 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 01:01:35,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:01:35,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 01:01:35,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-19 01:01:35,812 INFO L87 Difference]: Start difference. First operand 492 states and 626 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-19 01:01:35,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:01:35,885 INFO L93 Difference]: Finished difference Result 1022 states and 1299 transitions. [2024-11-19 01:01:35,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 01:01:35,886 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 190 [2024-11-19 01:01:35,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:01:35,888 INFO L225 Difference]: With dead ends: 1022 [2024-11-19 01:01:35,888 INFO L226 Difference]: Without dead ends: 533 [2024-11-19 01:01:35,889 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-19 01:01:35,889 INFO L432 NwaCegarLoop]: 220 mSDtfsCounter, 80 mSDsluCounter, 517 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 737 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 [2024-11-19 01:01:35,890 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 737 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 01:01:35,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 533 states. [2024-11-19 01:01:35,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 533 to 493. [2024-11-19 01:01:35,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 493 states, 452 states have (on average 1.2345132743362832) internal successors, (558), 454 states have internal predecessors, (558), 33 states have call successors, (33), 7 states have call predecessors, (33), 7 states have return successors, (33), 31 states have call predecessors, (33), 33 states have call successors, (33) [2024-11-19 01:01:35,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 493 states to 493 states and 624 transitions. [2024-11-19 01:01:35,918 INFO L78 Accepts]: Start accepts. Automaton has 493 states and 624 transitions. Word has length 190 [2024-11-19 01:01:35,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:01:35,919 INFO L471 AbstractCegarLoop]: Abstraction has 493 states and 624 transitions. [2024-11-19 01:01:35,919 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-19 01:01:35,919 INFO L276 IsEmpty]: Start isEmpty. Operand 493 states and 624 transitions. [2024-11-19 01:01:35,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-11-19 01:01:35,920 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:01:35,920 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:01:35,920 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-19 01:01:35,920 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:01:35,921 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:01:35,921 INFO L85 PathProgramCache]: Analyzing trace with hash -1508681115, now seen corresponding path program 1 times [2024-11-19 01:01:35,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:01:35,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817696960] [2024-11-19 01:01:35,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:01:35,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:01:35,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:01:36,206 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-19 01:01:36,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:01:36,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817696960] [2024-11-19 01:01:36,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1817696960] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:01:36,207 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:01:36,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-19 01:01:36,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696767577] [2024-11-19 01:01:36,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:01:36,208 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 01:01:36,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:01:36,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 01:01:36,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-19 01:01:36,208 INFO L87 Difference]: Start difference. First operand 493 states and 624 transitions. Second operand has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 9 states have internal predecessors, (78), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-19 01:01:36,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:01:36,334 INFO L93 Difference]: Finished difference Result 1031 states and 1304 transitions. [2024-11-19 01:01:36,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 01:01:36,334 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 9 states have internal predecessors, (78), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 190 [2024-11-19 01:01:36,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:01:36,336 INFO L225 Difference]: With dead ends: 1031 [2024-11-19 01:01:36,336 INFO L226 Difference]: Without dead ends: 541 [2024-11-19 01:01:36,337 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2024-11-19 01:01:36,337 INFO L432 NwaCegarLoop]: 217 mSDtfsCounter, 223 mSDsluCounter, 1086 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 223 SdHoareTripleChecker+Valid, 1303 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 01:01:36,337 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [223 Valid, 1303 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 01:01:36,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 541 states. [2024-11-19 01:01:36,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 541 to 493. [2024-11-19 01:01:36,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 493 states, 452 states have (on average 1.2323008849557522) internal successors, (557), 454 states have internal predecessors, (557), 33 states have call successors, (33), 7 states have call predecessors, (33), 7 states have return successors, (33), 31 states have call predecessors, (33), 33 states have call successors, (33) [2024-11-19 01:01:36,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 493 states to 493 states and 623 transitions. [2024-11-19 01:01:36,365 INFO L78 Accepts]: Start accepts. Automaton has 493 states and 623 transitions. Word has length 190 [2024-11-19 01:01:36,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:01:36,365 INFO L471 AbstractCegarLoop]: Abstraction has 493 states and 623 transitions. [2024-11-19 01:01:36,366 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 9 states have internal predecessors, (78), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-19 01:01:36,366 INFO L276 IsEmpty]: Start isEmpty. Operand 493 states and 623 transitions. [2024-11-19 01:01:36,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-11-19 01:01:36,367 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:01:36,367 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:01:36,367 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-19 01:01:36,367 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:01:36,367 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:01:36,367 INFO L85 PathProgramCache]: Analyzing trace with hash -1250515677, now seen corresponding path program 1 times [2024-11-19 01:01:36,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:01:36,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53272337] [2024-11-19 01:01:36,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:01:36,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:01:36,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:01:36,946 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-19 01:01:36,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:01:36,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53272337] [2024-11-19 01:01:36,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [53272337] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:01:36,946 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:01:36,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-19 01:01:36,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442744243] [2024-11-19 01:01:36,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:01:36,947 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 01:01:36,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:01:36,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 01:01:36,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-11-19 01:01:36,947 INFO L87 Difference]: Start difference. First operand 493 states and 623 transitions. Second operand has 10 states, 10 states have (on average 7.8) internal successors, (78), 10 states have internal predecessors, (78), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-19 01:01:37,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:01:37,267 INFO L93 Difference]: Finished difference Result 1115 states and 1401 transitions. [2024-11-19 01:01:37,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-19 01:01:37,270 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.8) internal successors, (78), 10 states have internal predecessors, (78), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 190 [2024-11-19 01:01:37,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:01:37,272 INFO L225 Difference]: With dead ends: 1115 [2024-11-19 01:01:37,272 INFO L226 Difference]: Without dead ends: 625 [2024-11-19 01:01:37,273 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2024-11-19 01:01:37,274 INFO L432 NwaCegarLoop]: 265 mSDtfsCounter, 179 mSDsluCounter, 1465 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 1730 SdHoareTripleChecker+Invalid, 263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 01:01:37,274 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [179 Valid, 1730 Invalid, 263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 01:01:37,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 625 states. [2024-11-19 01:01:37,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 625 to 566. [2024-11-19 01:01:37,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 566 states, 513 states have (on average 1.2241715399610136) internal successors, (628), 516 states have internal predecessors, (628), 41 states have call successors, (41), 11 states have call predecessors, (41), 11 states have return successors, (41), 38 states have call predecessors, (41), 41 states have call successors, (41) [2024-11-19 01:01:37,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 566 states and 710 transitions. [2024-11-19 01:01:37,317 INFO L78 Accepts]: Start accepts. Automaton has 566 states and 710 transitions. Word has length 190 [2024-11-19 01:01:37,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:01:37,317 INFO L471 AbstractCegarLoop]: Abstraction has 566 states and 710 transitions. [2024-11-19 01:01:37,317 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.8) internal successors, (78), 10 states have internal predecessors, (78), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-19 01:01:37,318 INFO L276 IsEmpty]: Start isEmpty. Operand 566 states and 710 transitions. [2024-11-19 01:01:37,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-11-19 01:01:37,319 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:01:37,319 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:01:37,319 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-19 01:01:37,319 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:01:37,320 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:01:37,321 INFO L85 PathProgramCache]: Analyzing trace with hash -1619440157, now seen corresponding path program 1 times [2024-11-19 01:01:37,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:01:37,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161353562] [2024-11-19 01:01:37,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:01:37,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:01:37,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:01:37,947 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-19 01:01:37,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:01:37,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161353562] [2024-11-19 01:01:37,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1161353562] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:01:37,947 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:01:37,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-19 01:01:37,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414948349] [2024-11-19 01:01:37,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:01:37,948 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 01:01:37,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:01:37,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 01:01:37,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-11-19 01:01:37,949 INFO L87 Difference]: Start difference. First operand 566 states and 710 transitions. Second operand has 10 states, 10 states have (on average 7.8) internal successors, (78), 10 states have internal predecessors, (78), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-19 01:01:38,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:01:38,273 INFO L93 Difference]: Finished difference Result 1207 states and 1508 transitions. [2024-11-19 01:01:38,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-19 01:01:38,274 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.8) internal successors, (78), 10 states have internal predecessors, (78), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 190 [2024-11-19 01:01:38,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:01:38,277 INFO L225 Difference]: With dead ends: 1207 [2024-11-19 01:01:38,277 INFO L226 Difference]: Without dead ends: 644 [2024-11-19 01:01:38,278 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210 [2024-11-19 01:01:38,279 INFO L432 NwaCegarLoop]: 206 mSDtfsCounter, 234 mSDsluCounter, 1145 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 234 SdHoareTripleChecker+Valid, 1351 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 01:01:38,279 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [234 Valid, 1351 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 209 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 01:01:38,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 644 states. [2024-11-19 01:01:38,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 644 to 568. [2024-11-19 01:01:38,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 568 states, 514 states have (on average 1.2237354085603114) internal successors, (629), 517 states have internal predecessors, (629), 41 states have call successors, (41), 12 states have call predecessors, (41), 12 states have return successors, (41), 38 states have call predecessors, (41), 41 states have call successors, (41) [2024-11-19 01:01:38,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 568 states to 568 states and 711 transitions. [2024-11-19 01:01:38,348 INFO L78 Accepts]: Start accepts. Automaton has 568 states and 711 transitions. Word has length 190 [2024-11-19 01:01:38,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:01:38,348 INFO L471 AbstractCegarLoop]: Abstraction has 568 states and 711 transitions. [2024-11-19 01:01:38,348 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.8) internal successors, (78), 10 states have internal predecessors, (78), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-19 01:01:38,348 INFO L276 IsEmpty]: Start isEmpty. Operand 568 states and 711 transitions. [2024-11-19 01:01:38,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2024-11-19 01:01:38,349 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:01:38,349 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:01:38,350 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-19 01:01:38,350 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:01:38,350 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:01:38,350 INFO L85 PathProgramCache]: Analyzing trace with hash -2017948219, now seen corresponding path program 1 times [2024-11-19 01:01:38,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:01:38,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645568853] [2024-11-19 01:01:38,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:01:38,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:01:38,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:01:38,691 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-19 01:01:38,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:01:38,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645568853] [2024-11-19 01:01:38,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [645568853] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:01:38,691 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:01:38,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-19 01:01:38,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748702833] [2024-11-19 01:01:38,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:01:38,692 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 01:01:38,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:01:38,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 01:01:38,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-19 01:01:38,693 INFO L87 Difference]: Start difference. First operand 568 states and 711 transitions. Second operand has 9 states, 8 states have (on average 9.875) internal successors, (79), 9 states have internal predecessors, (79), 4 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) [2024-11-19 01:01:39,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:01:39,191 INFO L93 Difference]: Finished difference Result 1535 states and 1938 transitions. [2024-11-19 01:01:39,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-19 01:01:39,192 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 9.875) internal successors, (79), 9 states have internal predecessors, (79), 4 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) Word has length 191 [2024-11-19 01:01:39,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:01:39,195 INFO L225 Difference]: With dead ends: 1535 [2024-11-19 01:01:39,195 INFO L226 Difference]: Without dead ends: 970 [2024-11-19 01:01:39,196 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=79, Invalid=193, Unknown=0, NotChecked=0, Total=272 [2024-11-19 01:01:39,196 INFO L432 NwaCegarLoop]: 366 mSDtfsCounter, 542 mSDsluCounter, 1140 mSDsCounter, 0 mSdLazyCounter, 435 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 542 SdHoareTripleChecker+Valid, 1506 SdHoareTripleChecker+Invalid, 535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 435 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 01:01:39,196 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [542 Valid, 1506 Invalid, 535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 435 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 01:01:39,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 970 states. [2024-11-19 01:01:39,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 970 to 730. [2024-11-19 01:01:39,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 730 states, 656 states have (on average 1.2057926829268293) internal successors, (791), 661 states have internal predecessors, (791), 55 states have call successors, (55), 18 states have call predecessors, (55), 18 states have return successors, (55), 50 states have call predecessors, (55), 55 states have call successors, (55) [2024-11-19 01:01:39,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 730 states to 730 states and 901 transitions. [2024-11-19 01:01:39,254 INFO L78 Accepts]: Start accepts. Automaton has 730 states and 901 transitions. Word has length 191 [2024-11-19 01:01:39,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:01:39,254 INFO L471 AbstractCegarLoop]: Abstraction has 730 states and 901 transitions. [2024-11-19 01:01:39,254 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.875) internal successors, (79), 9 states have internal predecessors, (79), 4 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) [2024-11-19 01:01:39,254 INFO L276 IsEmpty]: Start isEmpty. Operand 730 states and 901 transitions. [2024-11-19 01:01:39,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2024-11-19 01:01:39,256 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:01:39,256 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:01:39,256 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-19 01:01:39,256 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:01:39,256 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:01:39,256 INFO L85 PathProgramCache]: Analyzing trace with hash -196934681, now seen corresponding path program 1 times [2024-11-19 01:01:39,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:01:39,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950354836] [2024-11-19 01:01:39,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:01:39,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:01:39,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:01:39,327 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-19 01:01:39,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:01:39,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950354836] [2024-11-19 01:01:39,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1950354836] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:01:39,327 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:01:39,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 01:01:39,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806464210] [2024-11-19 01:01:39,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:01:39,329 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 01:01:39,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:01:39,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 01:01:39,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 01:01:39,330 INFO L87 Difference]: Start difference. First operand 730 states and 901 transitions. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-19 01:01:39,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:01:39,390 INFO L93 Difference]: Finished difference Result 1475 states and 1823 transitions. [2024-11-19 01:01:39,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 01:01:39,391 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 191 [2024-11-19 01:01:39,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:01:39,393 INFO L225 Difference]: With dead ends: 1475 [2024-11-19 01:01:39,393 INFO L226 Difference]: Without dead ends: 748 [2024-11-19 01:01:39,394 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 01:01:39,395 INFO L432 NwaCegarLoop]: 171 mSDtfsCounter, 1 mSDsluCounter, 332 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 503 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 01:01:39,395 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 503 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 01:01:39,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 748 states. [2024-11-19 01:01:39,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 748 to 742. [2024-11-19 01:01:39,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 742 states, 668 states have (on average 1.2020958083832336) internal successors, (803), 673 states have internal predecessors, (803), 55 states have call successors, (55), 18 states have call predecessors, (55), 18 states have return successors, (55), 50 states have call predecessors, (55), 55 states have call successors, (55) [2024-11-19 01:01:39,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 742 states to 742 states and 913 transitions. [2024-11-19 01:01:39,450 INFO L78 Accepts]: Start accepts. Automaton has 742 states and 913 transitions. Word has length 191 [2024-11-19 01:01:39,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:01:39,450 INFO L471 AbstractCegarLoop]: Abstraction has 742 states and 913 transitions. [2024-11-19 01:01:39,450 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-19 01:01:39,450 INFO L276 IsEmpty]: Start isEmpty. Operand 742 states and 913 transitions. [2024-11-19 01:01:39,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2024-11-19 01:01:39,451 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:01:39,452 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:01:39,452 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-11-19 01:01:39,452 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:01:39,452 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:01:39,452 INFO L85 PathProgramCache]: Analyzing trace with hash -589961691, now seen corresponding path program 1 times [2024-11-19 01:01:39,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:01:39,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306683334] [2024-11-19 01:01:39,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:01:39,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:01:39,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:01:39,620 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-19 01:01:39,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:01:39,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306683334] [2024-11-19 01:01:39,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [306683334] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:01:39,621 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:01:39,621 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 01:01:39,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016278442] [2024-11-19 01:01:39,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:01:39,622 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 01:01:39,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:01:39,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 01:01:39,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-19 01:01:39,623 INFO L87 Difference]: Start difference. First operand 742 states and 913 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-19 01:01:39,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:01:39,783 INFO L93 Difference]: Finished difference Result 2140 states and 2625 transitions. [2024-11-19 01:01:39,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 01:01:39,783 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 191 [2024-11-19 01:01:39,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:01:39,788 INFO L225 Difference]: With dead ends: 2140 [2024-11-19 01:01:39,788 INFO L226 Difference]: Without dead ends: 1401 [2024-11-19 01:01:39,789 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-19 01:01:39,790 INFO L432 NwaCegarLoop]: 204 mSDtfsCounter, 157 mSDsluCounter, 362 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 566 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 01:01:39,790 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 566 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 01:01:39,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1401 states. [2024-11-19 01:01:39,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1401 to 1398. [2024-11-19 01:01:39,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1398 states, 1264 states have (on average 1.196993670886076) internal successors, (1513), 1275 states have internal predecessors, (1513), 97 states have call successors, (97), 36 states have call predecessors, (97), 36 states have return successors, (97), 86 states have call predecessors, (97), 97 states have call successors, (97) [2024-11-19 01:01:39,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1398 states to 1398 states and 1707 transitions. [2024-11-19 01:01:39,891 INFO L78 Accepts]: Start accepts. Automaton has 1398 states and 1707 transitions. Word has length 191 [2024-11-19 01:01:39,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:01:39,892 INFO L471 AbstractCegarLoop]: Abstraction has 1398 states and 1707 transitions. [2024-11-19 01:01:39,892 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-19 01:01:39,892 INFO L276 IsEmpty]: Start isEmpty. Operand 1398 states and 1707 transitions. [2024-11-19 01:01:39,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2024-11-19 01:01:39,895 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:01:39,895 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:01:39,895 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-11-19 01:01:39,896 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:01:39,896 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:01:39,896 INFO L85 PathProgramCache]: Analyzing trace with hash -455100119, now seen corresponding path program 1 times [2024-11-19 01:01:39,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:01:39,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207089065] [2024-11-19 01:01:39,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:01:39,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:01:39,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:01:40,372 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-19 01:01:40,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:01:40,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207089065] [2024-11-19 01:01:40,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1207089065] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:01:40,372 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:01:40,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-19 01:01:40,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222989162] [2024-11-19 01:01:40,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:01:40,373 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 01:01:40,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:01:40,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 01:01:40,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-19 01:01:40,373 INFO L87 Difference]: Start difference. First operand 1398 states and 1707 transitions. Second operand has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 9 states have internal predecessors, (79), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-19 01:01:40,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:01:40,792 INFO L93 Difference]: Finished difference Result 4098 states and 4985 transitions. [2024-11-19 01:01:40,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 01:01:40,793 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 9 states have internal predecessors, (79), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 191 [2024-11-19 01:01:40,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:01:40,801 INFO L225 Difference]: With dead ends: 4098 [2024-11-19 01:01:40,801 INFO L226 Difference]: Without dead ends: 2703 [2024-11-19 01:01:40,803 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2024-11-19 01:01:40,804 INFO L432 NwaCegarLoop]: 227 mSDtfsCounter, 167 mSDsluCounter, 1150 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 1377 SdHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 01:01:40,804 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [181 Valid, 1377 Invalid, 266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 01:01:40,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2703 states. [2024-11-19 01:01:41,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2703 to 2670. [2024-11-19 01:01:41,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2670 states, 2412 states have (on average 1.1828358208955223) internal successors, (2853), 2435 states have internal predecessors, (2853), 185 states have call successors, (185), 72 states have call predecessors, (185), 72 states have return successors, (185), 162 states have call predecessors, (185), 185 states have call successors, (185) [2024-11-19 01:01:41,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2670 states to 2670 states and 3223 transitions. [2024-11-19 01:01:41,080 INFO L78 Accepts]: Start accepts. Automaton has 2670 states and 3223 transitions. Word has length 191 [2024-11-19 01:01:41,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:01:41,081 INFO L471 AbstractCegarLoop]: Abstraction has 2670 states and 3223 transitions. [2024-11-19 01:01:41,081 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 9 states have internal predecessors, (79), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-19 01:01:41,081 INFO L276 IsEmpty]: Start isEmpty. Operand 2670 states and 3223 transitions. [2024-11-19 01:01:41,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2024-11-19 01:01:41,084 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:01:41,085 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:01:41,085 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-11-19 01:01:41,085 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:01:41,085 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:01:41,085 INFO L85 PathProgramCache]: Analyzing trace with hash -1484459417, now seen corresponding path program 1 times [2024-11-19 01:01:41,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:01:41,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012313409] [2024-11-19 01:01:41,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:01:41,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:01:41,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:01:41,350 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-19 01:01:41,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:01:41,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2012313409] [2024-11-19 01:01:41,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2012313409] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:01:41,351 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:01:41,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 01:01:41,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157679168] [2024-11-19 01:01:41,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:01:41,351 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 01:01:41,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:01:41,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 01:01:41,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-19 01:01:41,352 INFO L87 Difference]: Start difference. First operand 2670 states and 3223 transitions. Second operand has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 7 states have internal predecessors, (79), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-19 01:01:41,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:01:41,693 INFO L93 Difference]: Finished difference Result 6033 states and 7267 transitions. [2024-11-19 01:01:41,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 01:01:41,694 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 7 states have internal predecessors, (79), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 191 [2024-11-19 01:01:41,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:01:41,708 INFO L225 Difference]: With dead ends: 6033 [2024-11-19 01:01:41,708 INFO L226 Difference]: Without dead ends: 3366 [2024-11-19 01:01:41,712 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-11-19 01:01:41,712 INFO L432 NwaCegarLoop]: 226 mSDtfsCounter, 231 mSDsluCounter, 756 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 231 SdHoareTripleChecker+Valid, 982 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 01:01:41,713 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [231 Valid, 982 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 01:01:41,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3366 states. [2024-11-19 01:01:42,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3366 to 3339. [2024-11-19 01:01:42,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3339 states, 3004 states have (on average 1.1774300932090547) internal successors, (3537), 3034 states have internal predecessors, (3537), 239 states have call successors, (239), 95 states have call predecessors, (239), 95 states have return successors, (239), 209 states have call predecessors, (239), 239 states have call successors, (239) [2024-11-19 01:01:42,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3339 states to 3339 states and 4015 transitions. [2024-11-19 01:01:42,009 INFO L78 Accepts]: Start accepts. Automaton has 3339 states and 4015 transitions. Word has length 191 [2024-11-19 01:01:42,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:01:42,009 INFO L471 AbstractCegarLoop]: Abstraction has 3339 states and 4015 transitions. [2024-11-19 01:01:42,009 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 7 states have internal predecessors, (79), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-19 01:01:42,009 INFO L276 IsEmpty]: Start isEmpty. Operand 3339 states and 4015 transitions. [2024-11-19 01:01:42,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2024-11-19 01:01:42,012 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:01:42,013 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:01:42,013 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-11-19 01:01:42,013 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:01:42,013 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:01:42,013 INFO L85 PathProgramCache]: Analyzing trace with hash -1877486427, now seen corresponding path program 1 times [2024-11-19 01:01:42,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:01:42,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491686389] [2024-11-19 01:01:42,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:01:42,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:01:42,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:01:42,411 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-19 01:01:42,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:01:42,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491686389] [2024-11-19 01:01:42,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1491686389] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:01:42,412 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:01:42,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-19 01:01:42,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671848221] [2024-11-19 01:01:42,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:01:42,413 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 01:01:42,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:01:42,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 01:01:42,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-11-19 01:01:42,414 INFO L87 Difference]: Start difference. First operand 3339 states and 4015 transitions. Second operand has 10 states, 10 states have (on average 7.9) internal successors, (79), 10 states have internal predecessors, (79), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-19 01:01:42,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:01:42,893 INFO L93 Difference]: Finished difference Result 7405 states and 8914 transitions. [2024-11-19 01:01:42,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-19 01:01:42,894 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.9) internal successors, (79), 10 states have internal predecessors, (79), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 191 [2024-11-19 01:01:42,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:01:42,906 INFO L225 Difference]: With dead ends: 7405 [2024-11-19 01:01:42,907 INFO L226 Difference]: Without dead ends: 4106 [2024-11-19 01:01:42,912 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2024-11-19 01:01:42,913 INFO L432 NwaCegarLoop]: 319 mSDtfsCounter, 150 mSDsluCounter, 2278 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 2597 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 01:01:42,913 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 2597 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 01:01:42,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4106 states. [2024-11-19 01:01:43,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4106 to 3707. [2024-11-19 01:01:43,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3707 states, 3369 states have (on average 1.1656277827248442) internal successors, (3927), 3399 states have internal predecessors, (3927), 241 states have call successors, (241), 96 states have call predecessors, (241), 96 states have return successors, (241), 211 states have call predecessors, (241), 241 states have call successors, (241) [2024-11-19 01:01:43,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3707 states to 3707 states and 4409 transitions. [2024-11-19 01:01:43,225 INFO L78 Accepts]: Start accepts. Automaton has 3707 states and 4409 transitions. Word has length 191 [2024-11-19 01:01:43,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:01:43,225 INFO L471 AbstractCegarLoop]: Abstraction has 3707 states and 4409 transitions. [2024-11-19 01:01:43,225 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.9) internal successors, (79), 10 states have internal predecessors, (79), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-19 01:01:43,225 INFO L276 IsEmpty]: Start isEmpty. Operand 3707 states and 4409 transitions. [2024-11-19 01:01:43,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2024-11-19 01:01:43,228 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:01:43,228 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:01:43,228 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-11-19 01:01:43,228 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:01:43,229 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:01:43,229 INFO L85 PathProgramCache]: Analyzing trace with hash 1438700581, now seen corresponding path program 1 times [2024-11-19 01:01:43,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:01:43,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122985879] [2024-11-19 01:01:43,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:01:43,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:01:43,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:01:43,400 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-19 01:01:43,400 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:01:43,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122985879] [2024-11-19 01:01:43,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [122985879] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:01:43,401 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:01:43,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 01:01:43,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368392344] [2024-11-19 01:01:43,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:01:43,401 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 01:01:43,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:01:43,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 01:01:43,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-19 01:01:43,402 INFO L87 Difference]: Start difference. First operand 3707 states and 4409 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-19 01:01:43,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:01:43,707 INFO L93 Difference]: Finished difference Result 7346 states and 8721 transitions. [2024-11-19 01:01:43,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 01:01:43,708 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 191 [2024-11-19 01:01:43,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:01:43,716 INFO L225 Difference]: With dead ends: 7346 [2024-11-19 01:01:43,716 INFO L226 Difference]: Without dead ends: 3687 [2024-11-19 01:01:43,720 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-19 01:01:43,721 INFO L432 NwaCegarLoop]: 246 mSDtfsCounter, 159 mSDsluCounter, 397 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 643 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 01:01:43,721 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 643 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 01:01:43,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3687 states. [2024-11-19 01:01:44,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3687 to 3104. [2024-11-19 01:01:44,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3104 states, 2901 states have (on average 1.1527059634608756) internal successors, (3344), 2918 states have internal predecessors, (3344), 145 states have call successors, (145), 57 states have call predecessors, (145), 57 states have return successors, (145), 128 states have call predecessors, (145), 145 states have call successors, (145) [2024-11-19 01:01:44,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3104 states to 3104 states and 3634 transitions. [2024-11-19 01:01:44,019 INFO L78 Accepts]: Start accepts. Automaton has 3104 states and 3634 transitions. Word has length 191 [2024-11-19 01:01:44,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:01:44,020 INFO L471 AbstractCegarLoop]: Abstraction has 3104 states and 3634 transitions. [2024-11-19 01:01:44,020 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-19 01:01:44,020 INFO L276 IsEmpty]: Start isEmpty. Operand 3104 states and 3634 transitions. [2024-11-19 01:01:44,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2024-11-19 01:01:44,024 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:01:44,024 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:01:44,025 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-11-19 01:01:44,025 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:01:44,025 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:01:44,025 INFO L85 PathProgramCache]: Analyzing trace with hash -1633060821, now seen corresponding path program 1 times [2024-11-19 01:01:44,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:01:44,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669816438] [2024-11-19 01:01:44,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:01:44,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:01:44,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:01:44,833 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-19 01:01:44,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:01:44,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669816438] [2024-11-19 01:01:44,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669816438] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:01:44,834 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:01:44,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-19 01:01:44,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407690908] [2024-11-19 01:01:44,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:01:44,835 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-19 01:01:44,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:01:44,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-19 01:01:44,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-11-19 01:01:44,835 INFO L87 Difference]: Start difference. First operand 3104 states and 3634 transitions. Second operand has 14 states, 13 states have (on average 6.153846153846154) internal successors, (80), 14 states have internal predecessors, (80), 4 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) [2024-11-19 01:01:46,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:01:46,071 INFO L93 Difference]: Finished difference Result 9207 states and 10719 transitions. [2024-11-19 01:01:46,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-19 01:01:46,071 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 6.153846153846154) internal successors, (80), 14 states have internal predecessors, (80), 4 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) Word has length 192 [2024-11-19 01:01:46,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:01:46,083 INFO L225 Difference]: With dead ends: 9207 [2024-11-19 01:01:46,083 INFO L226 Difference]: Without dead ends: 6106 [2024-11-19 01:01:46,088 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=141, Invalid=509, Unknown=0, NotChecked=0, Total=650 [2024-11-19 01:01:46,088 INFO L432 NwaCegarLoop]: 363 mSDtfsCounter, 428 mSDsluCounter, 2360 mSDsCounter, 0 mSdLazyCounter, 995 mSolverCounterSat, 125 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 428 SdHoareTripleChecker+Valid, 2723 SdHoareTripleChecker+Invalid, 1120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 125 IncrementalHoareTripleChecker+Valid, 995 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-19 01:01:46,088 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [428 Valid, 2723 Invalid, 1120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [125 Valid, 995 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-19 01:01:46,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6106 states. [2024-11-19 01:01:46,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6106 to 3248. [2024-11-19 01:01:46,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3248 states, 3045 states have (on average 1.1533661740558292) internal successors, (3512), 3062 states have internal predecessors, (3512), 145 states have call successors, (145), 57 states have call predecessors, (145), 57 states have return successors, (145), 128 states have call predecessors, (145), 145 states have call successors, (145) [2024-11-19 01:01:46,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3248 states to 3248 states and 3802 transitions. [2024-11-19 01:01:46,321 INFO L78 Accepts]: Start accepts. Automaton has 3248 states and 3802 transitions. Word has length 192 [2024-11-19 01:01:46,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:01:46,322 INFO L471 AbstractCegarLoop]: Abstraction has 3248 states and 3802 transitions. [2024-11-19 01:01:46,322 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 6.153846153846154) internal successors, (80), 14 states have internal predecessors, (80), 4 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) [2024-11-19 01:01:46,323 INFO L276 IsEmpty]: Start isEmpty. Operand 3248 states and 3802 transitions. [2024-11-19 01:01:46,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2024-11-19 01:01:46,326 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:01:46,326 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:01:46,326 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-11-19 01:01:46,326 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:01:46,327 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:01:46,327 INFO L85 PathProgramCache]: Analyzing trace with hash -1358301207, now seen corresponding path program 1 times [2024-11-19 01:01:46,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:01:46,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507564808] [2024-11-19 01:01:46,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:01:46,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:01:46,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:01:46,550 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-19 01:01:46,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:01:46,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1507564808] [2024-11-19 01:01:46,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1507564808] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:01:46,551 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:01:46,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 01:01:46,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421328229] [2024-11-19 01:01:46,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:01:46,551 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 01:01:46,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:01:46,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 01:01:46,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-19 01:01:46,552 INFO L87 Difference]: Start difference. First operand 3248 states and 3802 transitions. Second operand has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-19 01:01:46,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:01:46,931 INFO L93 Difference]: Finished difference Result 7392 states and 8752 transitions. [2024-11-19 01:01:46,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 01:01:46,932 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 192 [2024-11-19 01:01:46,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:01:46,939 INFO L225 Difference]: With dead ends: 7392 [2024-11-19 01:01:46,939 INFO L226 Difference]: Without dead ends: 4147 [2024-11-19 01:01:46,942 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-11-19 01:01:46,942 INFO L432 NwaCegarLoop]: 405 mSDtfsCounter, 329 mSDsluCounter, 853 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 329 SdHoareTripleChecker+Valid, 1258 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 01:01:46,943 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [329 Valid, 1258 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 01:01:46,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4147 states. [2024-11-19 01:01:47,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4147 to 3166. [2024-11-19 01:01:47,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3166 states, 2963 states have (on average 1.1468106648666891) internal successors, (3398), 2980 states have internal predecessors, (3398), 145 states have call successors, (145), 57 states have call predecessors, (145), 57 states have return successors, (145), 128 states have call predecessors, (145), 145 states have call successors, (145) [2024-11-19 01:01:47,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3166 states to 3166 states and 3688 transitions. [2024-11-19 01:01:47,167 INFO L78 Accepts]: Start accepts. Automaton has 3166 states and 3688 transitions. Word has length 192 [2024-11-19 01:01:47,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:01:47,168 INFO L471 AbstractCegarLoop]: Abstraction has 3166 states and 3688 transitions. [2024-11-19 01:01:47,168 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-19 01:01:47,168 INFO L276 IsEmpty]: Start isEmpty. Operand 3166 states and 3688 transitions. [2024-11-19 01:01:47,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2024-11-19 01:01:47,171 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:01:47,171 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:01:47,172 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2024-11-19 01:01:47,172 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:01:47,172 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:01:47,172 INFO L85 PathProgramCache]: Analyzing trace with hash 1417294, now seen corresponding path program 1 times [2024-11-19 01:01:47,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:01:47,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273213538] [2024-11-19 01:01:47,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:01:47,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:01:47,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:01:47,824 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-19 01:01:47,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:01:47,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273213538] [2024-11-19 01:01:47,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [273213538] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:01:47,825 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:01:47,825 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-19 01:01:47,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813612832] [2024-11-19 01:01:47,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:01:47,825 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 01:01:47,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:01:47,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 01:01:47,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-19 01:01:47,826 INFO L87 Difference]: Start difference. First operand 3166 states and 3688 transitions. Second operand has 9 states, 9 states have (on average 9.0) internal successors, (81), 9 states have internal predecessors, (81), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-19 01:01:48,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:01:48,301 INFO L93 Difference]: Finished difference Result 6608 states and 7720 transitions. [2024-11-19 01:01:48,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 01:01:48,302 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 9 states have internal predecessors, (81), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 193 [2024-11-19 01:01:48,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:01:48,308 INFO L225 Difference]: With dead ends: 6608 [2024-11-19 01:01:48,308 INFO L226 Difference]: Without dead ends: 3445 [2024-11-19 01:01:48,311 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2024-11-19 01:01:48,312 INFO L432 NwaCegarLoop]: 266 mSDtfsCounter, 170 mSDsluCounter, 1235 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 1501 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 01:01:48,312 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 1501 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 01:01:48,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3445 states. [2024-11-19 01:01:48,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3445 to 3166. [2024-11-19 01:01:48,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3166 states, 2963 states have (on average 1.1468106648666891) internal successors, (3398), 2980 states have internal predecessors, (3398), 145 states have call successors, (145), 57 states have call predecessors, (145), 57 states have return successors, (145), 128 states have call predecessors, (145), 145 states have call successors, (145) [2024-11-19 01:01:48,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3166 states to 3166 states and 3688 transitions. [2024-11-19 01:01:48,645 INFO L78 Accepts]: Start accepts. Automaton has 3166 states and 3688 transitions. Word has length 193 [2024-11-19 01:01:48,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:01:48,647 INFO L471 AbstractCegarLoop]: Abstraction has 3166 states and 3688 transitions. [2024-11-19 01:01:48,647 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 9 states have internal predecessors, (81), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-19 01:01:48,647 INFO L276 IsEmpty]: Start isEmpty. Operand 3166 states and 3688 transitions. [2024-11-19 01:01:48,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2024-11-19 01:01:48,651 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:01:48,651 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:01:48,651 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2024-11-19 01:01:48,651 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:01:48,651 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:01:48,651 INFO L85 PathProgramCache]: Analyzing trace with hash -391609716, now seen corresponding path program 1 times [2024-11-19 01:01:48,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:01:48,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436011804] [2024-11-19 01:01:48,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:01:48,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:01:48,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:01:48,911 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-19 01:01:48,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:01:48,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436011804] [2024-11-19 01:01:48,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [436011804] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:01:48,911 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:01:48,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 01:01:48,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115316240] [2024-11-19 01:01:48,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:01:48,912 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 01:01:48,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:01:48,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 01:01:48,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-19 01:01:48,913 INFO L87 Difference]: Start difference. First operand 3166 states and 3688 transitions. Second operand has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 7 states have internal predecessors, (81), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-19 01:01:49,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:01:49,214 INFO L93 Difference]: Finished difference Result 6335 states and 7377 transitions. [2024-11-19 01:01:49,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 01:01:49,214 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 7 states have internal predecessors, (81), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 193 [2024-11-19 01:01:49,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:01:49,220 INFO L225 Difference]: With dead ends: 6335 [2024-11-19 01:01:49,220 INFO L226 Difference]: Without dead ends: 3172 [2024-11-19 01:01:49,223 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-11-19 01:01:49,223 INFO L432 NwaCegarLoop]: 208 mSDtfsCounter, 226 mSDsluCounter, 715 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 923 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 01:01:49,223 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [226 Valid, 923 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 01:01:49,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3172 states. [2024-11-19 01:01:49,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3172 to 2815. [2024-11-19 01:01:49,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2815 states, 2611 states have (on average 1.1463040980467254) internal successors, (2993), 2628 states have internal predecessors, (2993), 145 states have call successors, (145), 58 states have call predecessors, (145), 58 states have return successors, (145), 128 states have call predecessors, (145), 145 states have call successors, (145) [2024-11-19 01:01:49,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2815 states to 2815 states and 3283 transitions. [2024-11-19 01:01:49,463 INFO L78 Accepts]: Start accepts. Automaton has 2815 states and 3283 transitions. Word has length 193 [2024-11-19 01:01:49,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:01:49,463 INFO L471 AbstractCegarLoop]: Abstraction has 2815 states and 3283 transitions. [2024-11-19 01:01:49,463 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 7 states have internal predecessors, (81), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-19 01:01:49,464 INFO L276 IsEmpty]: Start isEmpty. Operand 2815 states and 3283 transitions. [2024-11-19 01:01:49,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2024-11-19 01:01:49,466 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:01:49,466 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:01:49,467 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2024-11-19 01:01:49,467 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:01:49,467 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:01:49,467 INFO L85 PathProgramCache]: Analyzing trace with hash -1819775333, now seen corresponding path program 1 times [2024-11-19 01:01:49,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:01:49,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792568172] [2024-11-19 01:01:49,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:01:49,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:01:49,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:01:49,748 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 9 proven. 57 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-19 01:01:49,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:01:49,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792568172] [2024-11-19 01:01:49,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [792568172] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 01:01:49,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [466936125] [2024-11-19 01:01:49,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:01:49,749 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 01:01:49,749 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 01:01:49,750 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) [2024-11-19 01:01:49,753 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-19 01:01:50,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:01:50,019 INFO L255 TraceCheckSpWp]: Trace formula consists of 721 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-19 01:01:50,024 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 01:01:50,233 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 [2024-11-19 01:01:50,365 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 8 proven. 528 refuted. 0 times theorem prover too weak. 476 trivial. 0 not checked. [2024-11-19 01:01:50,365 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 01:01:50,593 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 32 treesize of output 28 [2024-11-19 01:01:50,724 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 42 proven. 24 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-19 01:01:50,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [466936125] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 01:01:50,724 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 01:01:50,724 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 19 [2024-11-19 01:01:50,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299824476] [2024-11-19 01:01:50,725 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 01:01:50,725 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-19 01:01:50,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:01:50,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-19 01:01:50,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=288, Unknown=0, NotChecked=0, Total=342 [2024-11-19 01:01:50,726 INFO L87 Difference]: Start difference. First operand 2815 states and 3283 transitions. Second operand has 19 states, 16 states have (on average 8.625) internal successors, (138), 19 states have internal predecessors, (138), 8 states have call successors, (69), 3 states have call predecessors, (69), 5 states have return successors, (69), 5 states have call predecessors, (69), 8 states have call successors, (69) [2024-11-19 01:01:51,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:01:51,773 INFO L93 Difference]: Finished difference Result 5059 states and 5883 transitions. [2024-11-19 01:01:51,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-11-19 01:01:51,773 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 16 states have (on average 8.625) internal successors, (138), 19 states have internal predecessors, (138), 8 states have call successors, (69), 3 states have call predecessors, (69), 5 states have return successors, (69), 5 states have call predecessors, (69), 8 states have call successors, (69) Word has length 193 [2024-11-19 01:01:51,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:01:51,778 INFO L225 Difference]: With dead ends: 5059 [2024-11-19 01:01:51,778 INFO L226 Difference]: Without dead ends: 2247 [2024-11-19 01:01:51,781 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 422 GetRequests, 379 SyntacticMatches, 1 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 318 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=386, Invalid=1506, Unknown=0, NotChecked=0, Total=1892 [2024-11-19 01:01:51,781 INFO L432 NwaCegarLoop]: 162 mSDtfsCounter, 761 mSDsluCounter, 1185 mSDsCounter, 0 mSdLazyCounter, 778 mSolverCounterSat, 222 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 761 SdHoareTripleChecker+Valid, 1347 SdHoareTripleChecker+Invalid, 1000 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 222 IncrementalHoareTripleChecker+Valid, 778 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-19 01:01:51,781 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [761 Valid, 1347 Invalid, 1000 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [222 Valid, 778 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-19 01:01:51,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2247 states. [2024-11-19 01:01:51,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2247 to 1614. [2024-11-19 01:01:51,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1614 states, 1464 states have (on average 1.144808743169399) internal successors, (1676), 1473 states have internal predecessors, (1676), 105 states have call successors, (105), 44 states have call predecessors, (105), 44 states have return successors, (105), 96 states have call predecessors, (105), 105 states have call successors, (105) [2024-11-19 01:01:51,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1614 states to 1614 states and 1886 transitions. [2024-11-19 01:01:51,981 INFO L78 Accepts]: Start accepts. Automaton has 1614 states and 1886 transitions. Word has length 193 [2024-11-19 01:01:51,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:01:51,981 INFO L471 AbstractCegarLoop]: Abstraction has 1614 states and 1886 transitions. [2024-11-19 01:01:51,981 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 16 states have (on average 8.625) internal successors, (138), 19 states have internal predecessors, (138), 8 states have call successors, (69), 3 states have call predecessors, (69), 5 states have return successors, (69), 5 states have call predecessors, (69), 8 states have call successors, (69) [2024-11-19 01:01:51,981 INFO L276 IsEmpty]: Start isEmpty. Operand 1614 states and 1886 transitions. [2024-11-19 01:01:51,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2024-11-19 01:01:51,983 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:01:51,983 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:01:51,997 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-19 01:01:52,187 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,SelfDestructingSolverStorable44 [2024-11-19 01:01:52,188 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:01:52,188 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:01:52,188 INFO L85 PathProgramCache]: Analyzing trace with hash 320602541, now seen corresponding path program 1 times [2024-11-19 01:01:52,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:01:52,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643408463] [2024-11-19 01:01:52,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:01:52,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:01:52,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:01:52,559 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 36 proven. 30 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-19 01:01:52,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:01:52,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [643408463] [2024-11-19 01:01:52,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [643408463] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 01:01:52,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [38705949] [2024-11-19 01:01:52,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:01:52,560 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 01:01:52,560 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 01:01:52,561 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) [2024-11-19 01:01:52,562 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-19 01:01:52,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:01:52,811 INFO L255 TraceCheckSpWp]: Trace formula consists of 723 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-19 01:01:52,814 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 01:01:52,887 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 [2024-11-19 01:01:53,106 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 35 treesize of output 23 [2024-11-19 01:01:53,118 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 17 proven. 411 refuted. 0 times theorem prover too weak. 584 trivial. 0 not checked. [2024-11-19 01:01:53,119 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 01:01:53,317 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 27 treesize of output 23 [2024-11-19 01:01:53,357 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 15 proven. 51 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-19 01:01:53,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [38705949] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 01:01:53,357 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 01:01:53,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 8, 9] total 19 [2024-11-19 01:01:53,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172775412] [2024-11-19 01:01:53,357 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 01:01:53,358 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-19 01:01:53,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:01:53,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-19 01:01:53,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2024-11-19 01:01:53,358 INFO L87 Difference]: Start difference. First operand 1614 states and 1886 transitions. Second operand has 19 states, 15 states have (on average 9.266666666666667) internal successors, (139), 18 states have internal predecessors, (139), 9 states have call successors, (69), 3 states have call predecessors, (69), 5 states have return successors, (69), 6 states have call predecessors, (69), 9 states have call successors, (69) [2024-11-19 01:01:54,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:01:54,249 INFO L93 Difference]: Finished difference Result 2524 states and 2937 transitions. [2024-11-19 01:01:54,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-19 01:01:54,249 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 15 states have (on average 9.266666666666667) internal successors, (139), 18 states have internal predecessors, (139), 9 states have call successors, (69), 3 states have call predecessors, (69), 5 states have return successors, (69), 6 states have call predecessors, (69), 9 states have call successors, (69) Word has length 196 [2024-11-19 01:01:54,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:01:54,252 INFO L225 Difference]: With dead ends: 2524 [2024-11-19 01:01:54,252 INFO L226 Difference]: Without dead ends: 966 [2024-11-19 01:01:54,254 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 431 GetRequests, 387 SyntacticMatches, 1 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 299 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=411, Invalid=1569, Unknown=0, NotChecked=0, Total=1980 [2024-11-19 01:01:54,254 INFO L432 NwaCegarLoop]: 154 mSDtfsCounter, 562 mSDsluCounter, 1043 mSDsCounter, 0 mSdLazyCounter, 741 mSolverCounterSat, 170 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 562 SdHoareTripleChecker+Valid, 1197 SdHoareTripleChecker+Invalid, 911 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 170 IncrementalHoareTripleChecker+Valid, 741 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 01:01:54,254 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [562 Valid, 1197 Invalid, 911 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [170 Valid, 741 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 01:01:54,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 966 states. [2024-11-19 01:01:54,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 966 to 710. [2024-11-19 01:01:54,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 710 states, 635 states have (on average 1.1448818897637796) internal successors, (727), 637 states have internal predecessors, (727), 51 states have call successors, (51), 23 states have call predecessors, (51), 23 states have return successors, (51), 49 states have call predecessors, (51), 51 states have call successors, (51) [2024-11-19 01:01:54,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 710 states to 710 states and 829 transitions. [2024-11-19 01:01:54,345 INFO L78 Accepts]: Start accepts. Automaton has 710 states and 829 transitions. Word has length 196 [2024-11-19 01:01:54,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:01:54,346 INFO L471 AbstractCegarLoop]: Abstraction has 710 states and 829 transitions. [2024-11-19 01:01:54,346 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 15 states have (on average 9.266666666666667) internal successors, (139), 18 states have internal predecessors, (139), 9 states have call successors, (69), 3 states have call predecessors, (69), 5 states have return successors, (69), 6 states have call predecessors, (69), 9 states have call successors, (69) [2024-11-19 01:01:54,346 INFO L276 IsEmpty]: Start isEmpty. Operand 710 states and 829 transitions. [2024-11-19 01:01:54,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2024-11-19 01:01:54,347 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:01:54,347 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:01:54,366 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-19 01:01:54,547 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 01:01:54,548 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:01:54,548 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:01:54,548 INFO L85 PathProgramCache]: Analyzing trace with hash -1936284236, now seen corresponding path program 1 times [2024-11-19 01:01:54,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:01:54,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [810242396] [2024-11-19 01:01:54,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:01:54,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:01:54,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:01:54,617 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-19 01:01:54,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:01:54,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [810242396] [2024-11-19 01:01:54,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [810242396] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:01:54,617 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:01:54,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 01:01:54,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881600729] [2024-11-19 01:01:54,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:01:54,618 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 01:01:54,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:01:54,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 01:01:54,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 01:01:54,618 INFO L87 Difference]: Start difference. First operand 710 states and 829 transitions. Second operand has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-19 01:01:54,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:01:54,720 INFO L93 Difference]: Finished difference Result 1211 states and 1417 transitions. [2024-11-19 01:01:54,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 01:01:54,721 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 196 [2024-11-19 01:01:54,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:01:54,723 INFO L225 Difference]: With dead ends: 1211 [2024-11-19 01:01:54,723 INFO L226 Difference]: Without dead ends: 561 [2024-11-19 01:01:54,724 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 01:01:54,724 INFO L432 NwaCegarLoop]: 167 mSDtfsCounter, 1 mSDsluCounter, 322 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 489 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 01:01:54,724 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 489 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 01:01:54,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 561 states. [2024-11-19 01:01:54,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 561 to 561. [2024-11-19 01:01:54,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 561 states, 486 states have (on average 1.1296296296296295) internal successors, (549), 488 states have internal predecessors, (549), 51 states have call successors, (51), 23 states have call predecessors, (51), 23 states have return successors, (51), 49 states have call predecessors, (51), 51 states have call successors, (51) [2024-11-19 01:01:54,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 561 states to 561 states and 651 transitions. [2024-11-19 01:01:54,810 INFO L78 Accepts]: Start accepts. Automaton has 561 states and 651 transitions. Word has length 196 [2024-11-19 01:01:54,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:01:54,810 INFO L471 AbstractCegarLoop]: Abstraction has 561 states and 651 transitions. [2024-11-19 01:01:54,811 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-19 01:01:54,811 INFO L276 IsEmpty]: Start isEmpty. Operand 561 states and 651 transitions. [2024-11-19 01:01:54,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2024-11-19 01:01:54,812 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:01:54,812 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:01:54,812 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2024-11-19 01:01:54,812 INFO L396 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:01:54,812 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:01:54,812 INFO L85 PathProgramCache]: Analyzing trace with hash 773955885, now seen corresponding path program 1 times [2024-11-19 01:01:54,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:01:54,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503156504] [2024-11-19 01:01:54,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:01:54,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:01:54,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:01:55,092 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 21 proven. 45 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-19 01:01:55,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:01:55,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503156504] [2024-11-19 01:01:55,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [503156504] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 01:01:55,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [851578645] [2024-11-19 01:01:55,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:01:55,093 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 01:01:55,093 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 01:01:55,094 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) [2024-11-19 01:01:55,095 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-19 01:01:55,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:01:55,324 INFO L255 TraceCheckSpWp]: Trace formula consists of 723 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-19 01:01:55,327 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 01:01:55,410 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 [2024-11-19 01:01:55,551 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 35 treesize of output 23 [2024-11-19 01:01:55,556 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 15 proven. 493 refuted. 0 times theorem prover too weak. 504 trivial. 0 not checked. [2024-11-19 01:01:55,556 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 01:01:55,721 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 27 treesize of output 23 [2024-11-19 01:01:55,767 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 21 proven. 45 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-19 01:01:55,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [851578645] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 01:01:55,768 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 01:01:55,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 11] total 16 [2024-11-19 01:01:55,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049890545] [2024-11-19 01:01:55,768 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 01:01:55,769 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-19 01:01:55,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:01:55,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-19 01:01:55,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2024-11-19 01:01:55,769 INFO L87 Difference]: Start difference. First operand 561 states and 651 transitions. Second operand has 16 states, 13 states have (on average 7.6923076923076925) internal successors, (100), 16 states have internal predecessors, (100), 7 states have call successors, (48), 3 states have call predecessors, (48), 5 states have return successors, (48), 4 states have call predecessors, (48), 7 states have call successors, (48) [2024-11-19 01:01:56,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:01:56,132 INFO L93 Difference]: Finished difference Result 952 states and 1103 transitions. [2024-11-19 01:01:56,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-19 01:01:56,132 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 13 states have (on average 7.6923076923076925) internal successors, (100), 16 states have internal predecessors, (100), 7 states have call successors, (48), 3 states have call predecessors, (48), 5 states have return successors, (48), 4 states have call predecessors, (48), 7 states have call successors, (48) Word has length 196 [2024-11-19 01:01:56,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:01:56,135 INFO L225 Difference]: With dead ends: 952 [2024-11-19 01:01:56,135 INFO L226 Difference]: Without dead ends: 451 [2024-11-19 01:01:56,137 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 414 GetRequests, 387 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=173, Invalid=583, Unknown=0, NotChecked=0, Total=756 [2024-11-19 01:01:56,137 INFO L432 NwaCegarLoop]: 134 mSDtfsCounter, 307 mSDsluCounter, 827 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 307 SdHoareTripleChecker+Valid, 961 SdHoareTripleChecker+Invalid, 448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 01:01:56,137 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [307 Valid, 961 Invalid, 448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 362 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 01:01:56,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 451 states. [2024-11-19 01:01:56,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 451 to 419. [2024-11-19 01:01:56,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 419 states, 344 states have (on average 1.1133720930232558) internal successors, (383), 346 states have internal predecessors, (383), 51 states have call successors, (51), 23 states have call predecessors, (51), 23 states have return successors, (51), 49 states have call predecessors, (51), 51 states have call successors, (51) [2024-11-19 01:01:56,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 485 transitions. [2024-11-19 01:01:56,232 INFO L78 Accepts]: Start accepts. Automaton has 419 states and 485 transitions. Word has length 196 [2024-11-19 01:01:56,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:01:56,232 INFO L471 AbstractCegarLoop]: Abstraction has 419 states and 485 transitions. [2024-11-19 01:01:56,233 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 13 states have (on average 7.6923076923076925) internal successors, (100), 16 states have internal predecessors, (100), 7 states have call successors, (48), 3 states have call predecessors, (48), 5 states have return successors, (48), 4 states have call predecessors, (48), 7 states have call successors, (48) [2024-11-19 01:01:56,233 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 485 transitions. [2024-11-19 01:01:56,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2024-11-19 01:01:56,233 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:01:56,234 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:01:56,247 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-19 01:01:56,434 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 01:01:56,434 INFO L396 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:01:56,434 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:01:56,435 INFO L85 PathProgramCache]: Analyzing trace with hash -326702483, now seen corresponding path program 1 times [2024-11-19 01:01:56,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:01:56,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996048016] [2024-11-19 01:01:56,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:01:56,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:01:56,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:01:56,843 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 27 proven. 39 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-19 01:01:56,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:01:56,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996048016] [2024-11-19 01:01:56,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996048016] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 01:01:56,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [932359970] [2024-11-19 01:01:56,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:01:56,844 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 01:01:56,844 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 01:01:56,845 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) [2024-11-19 01:01:56,846 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-19 01:01:57,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:01:57,081 INFO L255 TraceCheckSpWp]: Trace formula consists of 729 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-19 01:01:57,084 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 01:01:57,175 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 [2024-11-19 01:01:57,323 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 11 treesize of output 7 [2024-11-19 01:01:57,369 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 13 proven. 543 refuted. 0 times theorem prover too weak. 456 trivial. 0 not checked. [2024-11-19 01:01:57,369 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 01:01:57,581 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 27 treesize of output 23 [2024-11-19 01:01:57,642 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 27 proven. 39 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-19 01:01:57,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [932359970] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 01:01:57,643 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 01:01:57,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 11] total 21 [2024-11-19 01:01:57,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128240306] [2024-11-19 01:01:57,643 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 01:01:57,644 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-19 01:01:57,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:01:57,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-19 01:01:57,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=345, Unknown=0, NotChecked=0, Total=420 [2024-11-19 01:01:57,645 INFO L87 Difference]: Start difference. First operand 419 states and 485 transitions. Second operand has 21 states, 18 states have (on average 6.833333333333333) internal successors, (123), 21 states have internal predecessors, (123), 7 states have call successors, (48), 3 states have call predecessors, (48), 5 states have return successors, (48), 4 states have call predecessors, (48), 7 states have call successors, (48) [2024-11-19 01:01:58,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:01:58,117 INFO L93 Difference]: Finished difference Result 798 states and 923 transitions. [2024-11-19 01:01:58,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-19 01:01:58,117 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 18 states have (on average 6.833333333333333) internal successors, (123), 21 states have internal predecessors, (123), 7 states have call successors, (48), 3 states have call predecessors, (48), 5 states have return successors, (48), 4 states have call predecessors, (48), 7 states have call successors, (48) Word has length 196 [2024-11-19 01:01:58,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:01:58,119 INFO L225 Difference]: With dead ends: 798 [2024-11-19 01:01:58,119 INFO L226 Difference]: Without dead ends: 439 [2024-11-19 01:01:58,120 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 415 GetRequests, 383 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 174 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=244, Invalid=812, Unknown=0, NotChecked=0, Total=1056 [2024-11-19 01:01:58,121 INFO L432 NwaCegarLoop]: 128 mSDtfsCounter, 851 mSDsluCounter, 890 mSDsCounter, 0 mSdLazyCounter, 443 mSolverCounterSat, 255 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 851 SdHoareTripleChecker+Valid, 1018 SdHoareTripleChecker+Invalid, 698 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 255 IncrementalHoareTripleChecker+Valid, 443 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 01:01:58,121 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [851 Valid, 1018 Invalid, 698 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [255 Valid, 443 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 01:01:58,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2024-11-19 01:01:58,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 407. [2024-11-19 01:01:58,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 407 states, 332 states have (on average 1.105421686746988) internal successors, (367), 334 states have internal predecessors, (367), 51 states have call successors, (51), 23 states have call predecessors, (51), 23 states have return successors, (51), 49 states have call predecessors, (51), 51 states have call successors, (51) [2024-11-19 01:01:58,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 407 states and 469 transitions. [2024-11-19 01:01:58,212 INFO L78 Accepts]: Start accepts. Automaton has 407 states and 469 transitions. Word has length 196 [2024-11-19 01:01:58,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:01:58,212 INFO L471 AbstractCegarLoop]: Abstraction has 407 states and 469 transitions. [2024-11-19 01:01:58,213 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 18 states have (on average 6.833333333333333) internal successors, (123), 21 states have internal predecessors, (123), 7 states have call successors, (48), 3 states have call predecessors, (48), 5 states have return successors, (48), 4 states have call predecessors, (48), 7 states have call successors, (48) [2024-11-19 01:01:58,213 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 469 transitions. [2024-11-19 01:01:58,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2024-11-19 01:01:58,213 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:01:58,214 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:01:58,228 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-19 01:01:58,414 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,SelfDestructingSolverStorable48 [2024-11-19 01:01:58,414 INFO L396 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:01:58,415 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:01:58,415 INFO L85 PathProgramCache]: Analyzing trace with hash -1869085907, now seen corresponding path program 1 times [2024-11-19 01:01:58,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:01:58,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733037996] [2024-11-19 01:01:58,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:01:58,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:01:58,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:01:58,858 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 60 proven. 66 refuted. 0 times theorem prover too weak. 886 trivial. 0 not checked. [2024-11-19 01:01:58,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:01:58,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733037996] [2024-11-19 01:01:58,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [733037996] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 01:01:58,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [247873956] [2024-11-19 01:01:58,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:01:58,859 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 01:01:58,859 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 01:01:58,860 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) [2024-11-19 01:01:58,860 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-19 01:01:59,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:01:59,115 INFO L255 TraceCheckSpWp]: Trace formula consists of 731 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-19 01:01:59,119 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 01:01:59,252 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 [2024-11-19 01:01:59,384 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 12 proven. 556 refuted. 0 times theorem prover too weak. 444 trivial. 0 not checked. [2024-11-19 01:01:59,385 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 01:01:59,526 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 32 treesize of output 28 [2024-11-19 01:01:59,589 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 30 proven. 36 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-19 01:01:59,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [247873956] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 01:01:59,590 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 01:01:59,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8, 8] total 16 [2024-11-19 01:01:59,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283896980] [2024-11-19 01:01:59,590 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 01:01:59,591 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-19 01:01:59,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:01:59,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-19 01:01:59,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2024-11-19 01:01:59,591 INFO L87 Difference]: Start difference. First operand 407 states and 469 transitions. Second operand has 16 states, 12 states have (on average 11.25) internal successors, (135), 15 states have internal predecessors, (135), 8 states have call successors, (69), 3 states have call predecessors, (69), 5 states have return successors, (69), 5 states have call predecessors, (69), 8 states have call successors, (69) [2024-11-19 01:02:00,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:02:00,076 INFO L93 Difference]: Finished difference Result 641 states and 733 transitions. [2024-11-19 01:02:00,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-19 01:02:00,076 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 12 states have (on average 11.25) internal successors, (135), 15 states have internal predecessors, (135), 8 states have call successors, (69), 3 states have call predecessors, (69), 5 states have return successors, (69), 5 states have call predecessors, (69), 8 states have call successors, (69) Word has length 196 [2024-11-19 01:02:00,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:02:00,078 INFO L225 Difference]: With dead ends: 641 [2024-11-19 01:02:00,079 INFO L226 Difference]: Without dead ends: 294 [2024-11-19 01:02:00,079 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 419 GetRequests, 389 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=228, Invalid=702, Unknown=0, NotChecked=0, Total=930 [2024-11-19 01:02:00,080 INFO L432 NwaCegarLoop]: 154 mSDtfsCounter, 308 mSDsluCounter, 636 mSDsCounter, 0 mSdLazyCounter, 443 mSolverCounterSat, 111 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 308 SdHoareTripleChecker+Valid, 790 SdHoareTripleChecker+Invalid, 554 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 111 IncrementalHoareTripleChecker+Valid, 443 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 01:02:00,080 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [308 Valid, 790 Invalid, 554 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [111 Valid, 443 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 01:02:00,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2024-11-19 01:02:00,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 272. [2024-11-19 01:02:00,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 272 states, 215 states have (on average 1.083720930232558) internal successors, (233), 216 states have internal predecessors, (233), 37 states have call successors, (37), 19 states have call predecessors, (37), 19 states have return successors, (37), 36 states have call predecessors, (37), 37 states have call successors, (37) [2024-11-19 01:02:00,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 307 transitions. [2024-11-19 01:02:00,159 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 307 transitions. Word has length 196 [2024-11-19 01:02:00,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:02:00,159 INFO L471 AbstractCegarLoop]: Abstraction has 272 states and 307 transitions. [2024-11-19 01:02:00,159 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 12 states have (on average 11.25) internal successors, (135), 15 states have internal predecessors, (135), 8 states have call successors, (69), 3 states have call predecessors, (69), 5 states have return successors, (69), 5 states have call predecessors, (69), 8 states have call successors, (69) [2024-11-19 01:02:00,159 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 307 transitions. [2024-11-19 01:02:00,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2024-11-19 01:02:00,160 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:02:00,160 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:02:00,178 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-19 01:02:00,361 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2024-11-19 01:02:00,361 INFO L396 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:02:00,361 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:02:00,361 INFO L85 PathProgramCache]: Analyzing trace with hash 956246760, now seen corresponding path program 1 times [2024-11-19 01:02:00,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:02:00,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57585251] [2024-11-19 01:02:00,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:02:00,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:02:00,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:02:00,631 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-19 01:02:00,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:02:00,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57585251] [2024-11-19 01:02:00,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [57585251] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:02:00,632 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:02:00,632 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 01:02:00,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966505090] [2024-11-19 01:02:00,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:02:00,633 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 01:02:00,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:02:00,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 01:02:00,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 01:02:00,634 INFO L87 Difference]: Start difference. First operand 272 states and 307 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-19 01:02:00,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:02:00,789 INFO L93 Difference]: Finished difference Result 480 states and 544 transitions. [2024-11-19 01:02:00,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 01:02:00,789 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 198 [2024-11-19 01:02:00,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:02:00,791 INFO L225 Difference]: With dead ends: 480 [2024-11-19 01:02:00,791 INFO L226 Difference]: Without dead ends: 272 [2024-11-19 01:02:00,791 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-19 01:02:00,792 INFO L432 NwaCegarLoop]: 153 mSDtfsCounter, 124 mSDsluCounter, 254 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 407 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 01:02:00,792 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 407 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 01:02:00,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2024-11-19 01:02:00,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 272. [2024-11-19 01:02:00,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 272 states, 215 states have (on average 1.0790697674418606) internal successors, (232), 216 states have internal predecessors, (232), 37 states have call successors, (37), 19 states have call predecessors, (37), 19 states have return successors, (37), 36 states have call predecessors, (37), 37 states have call successors, (37) [2024-11-19 01:02:00,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 306 transitions. [2024-11-19 01:02:00,862 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 306 transitions. Word has length 198 [2024-11-19 01:02:00,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:02:00,863 INFO L471 AbstractCegarLoop]: Abstraction has 272 states and 306 transitions. [2024-11-19 01:02:00,863 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-19 01:02:00,863 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 306 transitions. [2024-11-19 01:02:00,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2024-11-19 01:02:00,863 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:02:00,864 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:02:00,864 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2024-11-19 01:02:00,864 INFO L396 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:02:00,864 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:02:00,864 INFO L85 PathProgramCache]: Analyzing trace with hash -1721855795, now seen corresponding path program 1 times [2024-11-19 01:02:00,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:02:00,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816134101] [2024-11-19 01:02:00,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:02:00,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:02:00,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:02:01,504 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-19 01:02:01,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:02:01,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816134101] [2024-11-19 01:02:01,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1816134101] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:02:01,504 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:02:01,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-19 01:02:01,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888482592] [2024-11-19 01:02:01,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:02:01,509 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 01:02:01,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:02:01,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 01:02:01,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-19 01:02:01,510 INFO L87 Difference]: Start difference. First operand 272 states and 306 transitions. Second operand has 10 states, 10 states have (on average 8.8) internal successors, (88), 10 states have internal predecessors, (88), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-19 01:02:01,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:02:01,904 INFO L93 Difference]: Finished difference Result 648 states and 729 transitions. [2024-11-19 01:02:01,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-19 01:02:01,904 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.8) internal successors, (88), 10 states have internal predecessors, (88), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 200 [2024-11-19 01:02:01,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:02:01,906 INFO L225 Difference]: With dead ends: 648 [2024-11-19 01:02:01,906 INFO L226 Difference]: Without dead ends: 440 [2024-11-19 01:02:01,907 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2024-11-19 01:02:01,907 INFO L432 NwaCegarLoop]: 197 mSDtfsCounter, 90 mSDsluCounter, 1392 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 1589 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 01:02:01,907 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 1589 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 256 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 01:02:01,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 440 states. [2024-11-19 01:02:02,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 440 to 437. [2024-11-19 01:02:02,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 437 states, 353 states have (on average 1.0878186968838528) internal successors, (384), 355 states have internal predecessors, (384), 53 states have call successors, (53), 30 states have call predecessors, (53), 30 states have return successors, (53), 51 states have call predecessors, (53), 53 states have call successors, (53) [2024-11-19 01:02:02,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 490 transitions. [2024-11-19 01:02:02,018 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 490 transitions. Word has length 200 [2024-11-19 01:02:02,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:02:02,018 INFO L471 AbstractCegarLoop]: Abstraction has 437 states and 490 transitions. [2024-11-19 01:02:02,018 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.8) internal successors, (88), 10 states have internal predecessors, (88), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-19 01:02:02,018 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 490 transitions. [2024-11-19 01:02:02,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2024-11-19 01:02:02,019 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:02:02,019 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:02:02,019 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2024-11-19 01:02:02,019 INFO L396 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:02:02,019 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:02:02,019 INFO L85 PathProgramCache]: Analyzing trace with hash -1041797425, now seen corresponding path program 1 times [2024-11-19 01:02:02,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:02:02,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1270802023] [2024-11-19 01:02:02,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:02:02,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:02:02,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:02:02,112 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-19 01:02:02,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:02:02,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1270802023] [2024-11-19 01:02:02,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1270802023] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:02:02,113 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:02:02,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 01:02:02,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395759299] [2024-11-19 01:02:02,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:02:02,114 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 01:02:02,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:02:02,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 01:02:02,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 01:02:02,114 INFO L87 Difference]: Start difference. First operand 437 states and 490 transitions. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-19 01:02:02,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:02:02,296 INFO L93 Difference]: Finished difference Result 821 states and 919 transitions. [2024-11-19 01:02:02,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 01:02:02,296 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 200 [2024-11-19 01:02:02,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:02:02,298 INFO L225 Difference]: With dead ends: 821 [2024-11-19 01:02:02,298 INFO L226 Difference]: Without dead ends: 448 [2024-11-19 01:02:02,299 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-19 01:02:02,299 INFO L432 NwaCegarLoop]: 159 mSDtfsCounter, 84 mSDsluCounter, 422 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 581 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 01:02:02,299 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 581 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 01:02:02,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states. [2024-11-19 01:02:02,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 439. [2024-11-19 01:02:02,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 439 states, 353 states have (on average 1.0821529745042493) internal successors, (382), 355 states have internal predecessors, (382), 54 states have call successors, (54), 31 states have call predecessors, (54), 31 states have return successors, (54), 52 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-19 01:02:02,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 439 states to 439 states and 490 transitions. [2024-11-19 01:02:02,412 INFO L78 Accepts]: Start accepts. Automaton has 439 states and 490 transitions. Word has length 200 [2024-11-19 01:02:02,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:02:02,412 INFO L471 AbstractCegarLoop]: Abstraction has 439 states and 490 transitions. [2024-11-19 01:02:02,412 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-19 01:02:02,412 INFO L276 IsEmpty]: Start isEmpty. Operand 439 states and 490 transitions. [2024-11-19 01:02:02,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2024-11-19 01:02:02,413 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:02:02,413 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:02:02,413 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2024-11-19 01:02:02,413 INFO L396 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:02:02,413 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:02:02,413 INFO L85 PathProgramCache]: Analyzing trace with hash -1473709301, now seen corresponding path program 1 times [2024-11-19 01:02:02,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:02:02,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308684233] [2024-11-19 01:02:02,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:02:02,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:02:02,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:02:02,504 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-19 01:02:02,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:02:02,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1308684233] [2024-11-19 01:02:02,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1308684233] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:02:02,505 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:02:02,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 01:02:02,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314331055] [2024-11-19 01:02:02,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:02:02,505 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 01:02:02,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:02:02,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 01:02:02,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 01:02:02,506 INFO L87 Difference]: Start difference. First operand 439 states and 490 transitions. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-19 01:02:02,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:02:02,671 INFO L93 Difference]: Finished difference Result 815 states and 909 transitions. [2024-11-19 01:02:02,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 01:02:02,671 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 200 [2024-11-19 01:02:02,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:02:02,673 INFO L225 Difference]: With dead ends: 815 [2024-11-19 01:02:02,673 INFO L226 Difference]: Without dead ends: 446 [2024-11-19 01:02:02,674 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-19 01:02:02,674 INFO L432 NwaCegarLoop]: 260 mSDtfsCounter, 83 mSDsluCounter, 619 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 879 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 01:02:02,674 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 879 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 01:02:02,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 446 states. [2024-11-19 01:02:02,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 446 to 358. [2024-11-19 01:02:02,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 358 states, 298 states have (on average 1.0838926174496644) internal successors, (323), 299 states have internal predecessors, (323), 38 states have call successors, (38), 21 states have call predecessors, (38), 21 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-19 01:02:02,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 399 transitions. [2024-11-19 01:02:02,753 INFO L78 Accepts]: Start accepts. Automaton has 358 states and 399 transitions. Word has length 200 [2024-11-19 01:02:02,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:02:02,753 INFO L471 AbstractCegarLoop]: Abstraction has 358 states and 399 transitions. [2024-11-19 01:02:02,753 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-19 01:02:02,754 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 399 transitions. [2024-11-19 01:02:02,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2024-11-19 01:02:02,754 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:02:02,754 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:02:02,755 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2024-11-19 01:02:02,755 INFO L396 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:02:02,755 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:02:02,755 INFO L85 PathProgramCache]: Analyzing trace with hash -793650931, now seen corresponding path program 1 times [2024-11-19 01:02:02,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:02:02,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780938517] [2024-11-19 01:02:02,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:02:02,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:02:02,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:02:03,157 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-19 01:02:03,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:02:03,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780938517] [2024-11-19 01:02:03,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1780938517] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:02:03,158 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:02:03,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-19 01:02:03,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575488305] [2024-11-19 01:02:03,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:02:03,159 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 01:02:03,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:02:03,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 01:02:03,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-19 01:02:03,159 INFO L87 Difference]: Start difference. First operand 358 states and 399 transitions. Second operand has 9 states, 9 states have (on average 9.777777777777779) internal successors, (88), 9 states have internal predecessors, (88), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-19 01:02:03,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:02:03,402 INFO L93 Difference]: Finished difference Result 786 states and 878 transitions. [2024-11-19 01:02:03,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-19 01:02:03,402 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.777777777777779) internal successors, (88), 9 states have internal predecessors, (88), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 200 [2024-11-19 01:02:03,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:02:03,405 INFO L225 Difference]: With dead ends: 786 [2024-11-19 01:02:03,405 INFO L226 Difference]: Without dead ends: 498 [2024-11-19 01:02:03,405 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2024-11-19 01:02:03,405 INFO L432 NwaCegarLoop]: 299 mSDtfsCounter, 123 mSDsluCounter, 1885 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 2184 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 01:02:03,406 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 2184 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 01:02:03,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 498 states. [2024-11-19 01:02:03,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 498 to 354. [2024-11-19 01:02:03,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 354 states, 294 states have (on average 1.0816326530612246) internal successors, (318), 295 states have internal predecessors, (318), 38 states have call successors, (38), 21 states have call predecessors, (38), 21 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-19 01:02:03,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 394 transitions. [2024-11-19 01:02:03,490 INFO L78 Accepts]: Start accepts. Automaton has 354 states and 394 transitions. Word has length 200 [2024-11-19 01:02:03,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:02:03,490 INFO L471 AbstractCegarLoop]: Abstraction has 354 states and 394 transitions. [2024-11-19 01:02:03,490 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.777777777777779) internal successors, (88), 9 states have internal predecessors, (88), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-19 01:02:03,490 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states and 394 transitions. [2024-11-19 01:02:03,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2024-11-19 01:02:03,491 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:02:03,491 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:02:03,491 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2024-11-19 01:02:03,491 INFO L396 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:02:03,491 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:02:03,491 INFO L85 PathProgramCache]: Analyzing trace with hash 1661340575, now seen corresponding path program 1 times [2024-11-19 01:02:03,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:02:03,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668914814] [2024-11-19 01:02:03,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:02:03,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:02:03,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:02:03,902 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-19 01:02:03,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:02:03,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668914814] [2024-11-19 01:02:03,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1668914814] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:02:03,902 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:02:03,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-19 01:02:03,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500651934] [2024-11-19 01:02:03,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:02:03,902 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 01:02:03,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:02:03,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 01:02:03,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-11-19 01:02:03,903 INFO L87 Difference]: Start difference. First operand 354 states and 394 transitions. Second operand has 10 states, 10 states have (on average 9.0) internal successors, (90), 10 states have internal predecessors, (90), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-19 01:02:04,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:02:04,102 INFO L93 Difference]: Finished difference Result 444 states and 489 transitions. [2024-11-19 01:02:04,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-19 01:02:04,102 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.0) internal successors, (90), 10 states have internal predecessors, (90), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 202 [2024-11-19 01:02:04,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:02:04,105 INFO L225 Difference]: With dead ends: 444 [2024-11-19 01:02:04,105 INFO L226 Difference]: Without dead ends: 442 [2024-11-19 01:02:04,105 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2024-11-19 01:02:04,105 INFO L432 NwaCegarLoop]: 152 mSDtfsCounter, 113 mSDsluCounter, 880 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 1032 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 01:02:04,105 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 1032 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 01:02:04,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2024-11-19 01:02:04,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 415. [2024-11-19 01:02:04,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 415 states, 355 states have (on average 1.076056338028169) internal successors, (382), 356 states have internal predecessors, (382), 38 states have call successors, (38), 21 states have call predecessors, (38), 21 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-19 01:02:04,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 458 transitions. [2024-11-19 01:02:04,187 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 458 transitions. Word has length 202 [2024-11-19 01:02:04,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:02:04,187 INFO L471 AbstractCegarLoop]: Abstraction has 415 states and 458 transitions. [2024-11-19 01:02:04,187 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.0) internal successors, (90), 10 states have internal predecessors, (90), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-19 01:02:04,187 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 458 transitions. [2024-11-19 01:02:04,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2024-11-19 01:02:04,188 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:02:04,188 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:02:04,189 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2024-11-19 01:02:04,189 INFO L396 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:02:04,189 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:02:04,189 INFO L85 PathProgramCache]: Analyzing trace with hash 1570221796, now seen corresponding path program 1 times [2024-11-19 01:02:04,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:02:04,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085385774] [2024-11-19 01:02:04,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:02:04,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:02:04,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:02:04,759 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-19 01:02:04,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:02:04,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085385774] [2024-11-19 01:02:04,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2085385774] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:02:04,759 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:02:04,760 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-19 01:02:04,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34577108] [2024-11-19 01:02:04,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:02:04,760 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-19 01:02:04,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:02:04,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-19 01:02:04,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-11-19 01:02:04,760 INFO L87 Difference]: Start difference. First operand 415 states and 458 transitions. Second operand has 12 states, 12 states have (on average 7.666666666666667) internal successors, (92), 12 states have internal predecessors, (92), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-19 01:02:05,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:02:05,110 INFO L93 Difference]: Finished difference Result 465 states and 513 transitions. [2024-11-19 01:02:05,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-19 01:02:05,110 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.666666666666667) internal successors, (92), 12 states have internal predecessors, (92), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 204 [2024-11-19 01:02:05,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:02:05,112 INFO L225 Difference]: With dead ends: 465 [2024-11-19 01:02:05,112 INFO L226 Difference]: Without dead ends: 463 [2024-11-19 01:02:05,112 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=262, Unknown=0, NotChecked=0, Total=342 [2024-11-19 01:02:05,113 INFO L432 NwaCegarLoop]: 165 mSDtfsCounter, 212 mSDsluCounter, 1185 mSDsCounter, 0 mSdLazyCounter, 282 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 1350 SdHoareTripleChecker+Invalid, 324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 01:02:05,113 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [212 Valid, 1350 Invalid, 324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 282 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 01:02:05,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 463 states. [2024-11-19 01:02:05,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 463 to 417. [2024-11-19 01:02:05,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 417 states, 357 states have (on average 1.0784313725490196) internal successors, (385), 358 states have internal predecessors, (385), 38 states have call successors, (38), 21 states have call predecessors, (38), 21 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-19 01:02:05,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 461 transitions. [2024-11-19 01:02:05,194 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 461 transitions. Word has length 204 [2024-11-19 01:02:05,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:02:05,194 INFO L471 AbstractCegarLoop]: Abstraction has 417 states and 461 transitions. [2024-11-19 01:02:05,194 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.666666666666667) internal successors, (92), 12 states have internal predecessors, (92), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-19 01:02:05,194 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 461 transitions. [2024-11-19 01:02:05,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2024-11-19 01:02:05,195 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:02:05,195 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:02:05,195 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2024-11-19 01:02:05,195 INFO L396 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:02:05,195 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:02:05,195 INFO L85 PathProgramCache]: Analyzing trace with hash -949738138, now seen corresponding path program 1 times [2024-11-19 01:02:05,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:02:05,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346769458] [2024-11-19 01:02:05,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:02:05,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:02:05,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:02:05,375 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-19 01:02:05,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:02:05,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346769458] [2024-11-19 01:02:05,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1346769458] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:02:05,376 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:02:05,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 01:02:05,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198293446] [2024-11-19 01:02:05,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:02:05,376 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 01:02:05,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:02:05,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 01:02:05,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-19 01:02:05,377 INFO L87 Difference]: Start difference. First operand 417 states and 461 transitions. Second operand has 5 states, 5 states have (on average 18.4) internal successors, (92), 5 states have internal predecessors, (92), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-19 01:02:05,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:02:05,482 INFO L93 Difference]: Finished difference Result 764 states and 846 transitions. [2024-11-19 01:02:05,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 01:02:05,482 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 5 states have internal predecessors, (92), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 204 [2024-11-19 01:02:05,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:02:05,484 INFO L225 Difference]: With dead ends: 764 [2024-11-19 01:02:05,484 INFO L226 Difference]: Without dead ends: 417 [2024-11-19 01:02:05,484 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-19 01:02:05,485 INFO L432 NwaCegarLoop]: 149 mSDtfsCounter, 78 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 358 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 01:02:05,485 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 358 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 01:02:05,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2024-11-19 01:02:05,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 417. [2024-11-19 01:02:05,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 417 states, 357 states have (on average 1.072829131652661) internal successors, (383), 358 states have internal predecessors, (383), 38 states have call successors, (38), 21 states have call predecessors, (38), 21 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-19 01:02:05,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 459 transitions. [2024-11-19 01:02:05,569 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 459 transitions. Word has length 204 [2024-11-19 01:02:05,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:02:05,569 INFO L471 AbstractCegarLoop]: Abstraction has 417 states and 459 transitions. [2024-11-19 01:02:05,569 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 5 states have internal predecessors, (92), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-19 01:02:05,569 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 459 transitions. [2024-11-19 01:02:05,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2024-11-19 01:02:05,570 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:02:05,570 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:02:05,570 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2024-11-19 01:02:05,570 INFO L396 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:02:05,571 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:02:05,571 INFO L85 PathProgramCache]: Analyzing trace with hash 1264711975, now seen corresponding path program 1 times [2024-11-19 01:02:05,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:02:05,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667966157] [2024-11-19 01:02:05,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:02:05,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:02:05,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:02:05,894 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 27 proven. 39 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-19 01:02:05,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:02:05,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667966157] [2024-11-19 01:02:05,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [667966157] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 01:02:05,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [101913456] [2024-11-19 01:02:05,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:02:05,895 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 01:02:05,895 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 01:02:05,896 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) [2024-11-19 01:02:05,896 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-19 01:02:06,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:02:06,168 INFO L255 TraceCheckSpWp]: Trace formula consists of 772 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-19 01:02:06,172 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 01:02:06,264 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 [2024-11-19 01:02:06,401 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 25 treesize of output 17 [2024-11-19 01:02:06,403 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 13 treesize of output 9 [2024-11-19 01:02:06,427 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 13 proven. 543 refuted. 0 times theorem prover too weak. 456 trivial. 0 not checked. [2024-11-19 01:02:06,427 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 01:02:06,671 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 27 treesize of output 23 [2024-11-19 01:02:06,730 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 27 proven. 39 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-19 01:02:06,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [101913456] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 01:02:06,730 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 01:02:06,730 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 10] total 17 [2024-11-19 01:02:06,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113867036] [2024-11-19 01:02:06,730 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 01:02:06,731 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-19 01:02:06,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:02:06,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-19 01:02:06,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=225, Unknown=0, NotChecked=0, Total=272 [2024-11-19 01:02:06,731 INFO L87 Difference]: Start difference. First operand 417 states and 459 transitions. Second operand has 17 states, 14 states have (on average 8.285714285714286) internal successors, (116), 17 states have internal predecessors, (116), 7 states have call successors, (48), 3 states have call predecessors, (48), 5 states have return successors, (48), 4 states have call predecessors, (48), 7 states have call successors, (48) [2024-11-19 01:02:07,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:02:07,478 INFO L93 Difference]: Finished difference Result 919 states and 1015 transitions. [2024-11-19 01:02:07,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-19 01:02:07,478 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 14 states have (on average 8.285714285714286) internal successors, (116), 17 states have internal predecessors, (116), 7 states have call successors, (48), 3 states have call predecessors, (48), 5 states have return successors, (48), 4 states have call predecessors, (48), 7 states have call successors, (48) Word has length 204 [2024-11-19 01:02:07,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:02:07,480 INFO L225 Difference]: With dead ends: 919 [2024-11-19 01:02:07,480 INFO L226 Difference]: Without dead ends: 0 [2024-11-19 01:02:07,482 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 440 GetRequests, 400 SyntacticMatches, 4 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 247 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=317, Invalid=1089, Unknown=0, NotChecked=0, Total=1406 [2024-11-19 01:02:07,482 INFO L432 NwaCegarLoop]: 220 mSDtfsCounter, 480 mSDsluCounter, 1239 mSDsCounter, 0 mSdLazyCounter, 700 mSolverCounterSat, 144 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 480 SdHoareTripleChecker+Valid, 1459 SdHoareTripleChecker+Invalid, 844 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 144 IncrementalHoareTripleChecker+Valid, 700 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-19 01:02:07,482 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [480 Valid, 1459 Invalid, 844 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [144 Valid, 700 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-19 01:02:07,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-19 01:02:07,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-19 01:02:07,483 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) [2024-11-19 01:02:07,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-19 01:02:07,484 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 204 [2024-11-19 01:02:07,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:02:07,484 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-19 01:02:07,484 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 14 states have (on average 8.285714285714286) internal successors, (116), 17 states have internal predecessors, (116), 7 states have call successors, (48), 3 states have call predecessors, (48), 5 states have return successors, (48), 4 states have call predecessors, (48), 7 states have call successors, (48) [2024-11-19 01:02:07,485 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-19 01:02:07,485 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-19 01:02:07,487 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-19 01:02:07,503 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-19 01:02:07,688 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,SelfDestructingSolverStorable58 [2024-11-19 01:02:07,691 INFO L407 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:02:07,692 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.