./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-37.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-ap_file-37.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 9ace0252547f876708b624949027ec52b8b774af5160f42fe1d76fcc6574c405 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 00:45:12,475 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 00:45:12,552 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-19 00:45:12,560 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 00:45:12,561 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 00:45:12,588 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 00:45:12,589 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 00:45:12,591 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 00:45:12,592 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 00:45:12,592 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 00:45:12,592 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 00:45:12,593 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 00:45:12,593 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 00:45:12,594 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 00:45:12,594 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 00:45:12,597 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 00:45:12,598 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 00:45:12,600 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 00:45:12,601 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 00:45:12,601 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 00:45:12,601 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 00:45:12,602 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 00:45:12,602 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 00:45:12,602 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 00:45:12,604 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 00:45:12,604 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 00:45:12,604 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 00:45:12,605 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 00:45:12,605 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 00:45:12,605 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 00:45:12,605 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 00:45:12,606 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 00:45:12,606 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 00:45:12,607 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 00:45:12,608 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 00:45:12,608 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 00:45:12,608 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 00:45:12,608 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 00:45:12,608 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 00:45:12,609 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 00:45:12,609 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 00:45:12,610 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 00:45:12,610 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9ace0252547f876708b624949027ec52b8b774af5160f42fe1d76fcc6574c405 [2024-11-19 00:45:12,893 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 00:45:12,919 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 00:45:12,922 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 00:45:12,923 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 00:45:12,924 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 00:45:12,925 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-37.i [2024-11-19 00:45:14,445 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 00:45:14,690 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 00:45:14,691 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-37.i [2024-11-19 00:45:14,703 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/10e0afed0/bc41b37747bf4bd3b0bb5872f2611f98/FLAG6bb44a831 [2024-11-19 00:45:15,023 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/10e0afed0/bc41b37747bf4bd3b0bb5872f2611f98 [2024-11-19 00:45:15,025 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 00:45:15,026 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 00:45:15,028 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 00:45:15,029 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 00:45:15,036 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 00:45:15,038 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 12:45:15" (1/1) ... [2024-11-19 00:45:15,039 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c75004f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:45:15, skipping insertion in model container [2024-11-19 00:45:15,039 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 12:45:15" (1/1) ... [2024-11-19 00:45:15,076 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 00:45:15,253 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-ap_file-37.i[917,930] [2024-11-19 00:45:15,321 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 00:45:15,339 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 00:45:15,348 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-ap_file-37.i[917,930] [2024-11-19 00:45:15,378 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 00:45:15,418 INFO L204 MainTranslator]: Completed translation [2024-11-19 00:45:15,421 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:45:15 WrapperNode [2024-11-19 00:45:15,422 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 00:45:15,423 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 00:45:15,423 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 00:45:15,423 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 00:45:15,431 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:45:15" (1/1) ... [2024-11-19 00:45:15,454 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:45:15" (1/1) ... [2024-11-19 00:45:15,499 INFO L138 Inliner]: procedures = 29, calls = 157, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 492 [2024-11-19 00:45:15,500 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 00:45:15,500 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 00:45:15,501 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 00:45:15,501 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 00:45:15,517 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:45:15" (1/1) ... [2024-11-19 00:45:15,519 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:45:15" (1/1) ... [2024-11-19 00:45:15,529 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:45:15" (1/1) ... [2024-11-19 00:45:15,553 INFO L175 MemorySlicer]: Split 124 memory accesses to 8 slices as follows [2, 8, 52, 20, 7, 15, 6, 14]. 42 percent of accesses are in the largest equivalence class. The 16 initializations are split as follows [2, 1, 5, 2, 1, 2, 1, 2]. The 17 writes are split as follows [0, 1, 7, 2, 1, 3, 1, 2]. [2024-11-19 00:45:15,553 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:45:15" (1/1) ... [2024-11-19 00:45:15,553 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:45:15" (1/1) ... [2024-11-19 00:45:15,572 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:45:15" (1/1) ... [2024-11-19 00:45:15,581 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:45:15" (1/1) ... [2024-11-19 00:45:15,589 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:45:15" (1/1) ... [2024-11-19 00:45:15,596 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:45:15" (1/1) ... [2024-11-19 00:45:15,630 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 00:45:15,633 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 00:45:15,636 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 00:45:15,636 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 00:45:15,637 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:45:15" (1/1) ... [2024-11-19 00:45:15,648 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 00:45:15,663 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 00:45:15,684 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 00:45:15,689 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 00:45:15,773 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 00:45:15,773 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-11-19 00:45:15,774 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-11-19 00:45:15,775 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2024-11-19 00:45:15,775 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2024-11-19 00:45:15,775 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2024-11-19 00:45:15,775 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2024-11-19 00:45:15,775 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#6 [2024-11-19 00:45:15,775 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#7 [2024-11-19 00:45:15,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-19 00:45:15,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-19 00:45:15,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-19 00:45:15,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-19 00:45:15,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-19 00:45:15,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-19 00:45:15,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-19 00:45:15,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-19 00:45:15,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2024-11-19 00:45:15,777 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2024-11-19 00:45:15,777 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2024-11-19 00:45:15,777 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2024-11-19 00:45:15,777 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#4 [2024-11-19 00:45:15,777 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#5 [2024-11-19 00:45:15,777 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#6 [2024-11-19 00:45:15,777 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#7 [2024-11-19 00:45:15,778 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-19 00:45:15,778 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-19 00:45:15,778 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-19 00:45:15,778 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-19 00:45:15,778 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-19 00:45:15,781 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-19 00:45:15,782 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-19 00:45:15,782 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-19 00:45:15,782 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#0 [2024-11-19 00:45:15,782 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#1 [2024-11-19 00:45:15,782 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#2 [2024-11-19 00:45:15,782 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#3 [2024-11-19 00:45:15,783 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#4 [2024-11-19 00:45:15,783 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#5 [2024-11-19 00:45:15,783 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#6 [2024-11-19 00:45:15,783 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#7 [2024-11-19 00:45:15,783 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-19 00:45:15,783 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-19 00:45:15,784 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 00:45:15,784 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-19 00:45:15,784 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-19 00:45:15,784 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-19 00:45:15,785 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-19 00:45:15,785 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-19 00:45:15,785 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-19 00:45:15,785 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-19 00:45:15,785 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 00:45:15,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 00:45:15,945 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 00:45:15,947 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 00:45:16,518 INFO L? ?]: Removed 140 outVars from TransFormulas that were not future-live. [2024-11-19 00:45:16,519 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 00:45:16,538 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 00:45:16,538 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-19 00:45:16,539 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 12:45:16 BoogieIcfgContainer [2024-11-19 00:45:16,539 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 00:45:16,541 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 00:45:16,542 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 00:45:16,546 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 00:45:16,546 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 12:45:15" (1/3) ... [2024-11-19 00:45:16,547 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32537125 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 12:45:16, skipping insertion in model container [2024-11-19 00:45:16,547 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:45:15" (2/3) ... [2024-11-19 00:45:16,548 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32537125 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 12:45:16, skipping insertion in model container [2024-11-19 00:45:16,548 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 12:45:16" (3/3) ... [2024-11-19 00:45:16,550 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-ap_file-37.i [2024-11-19 00:45:16,571 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 00:45:16,572 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-19 00:45:16,646 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 00:45:16,653 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;@3dee4df, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 00:45:16,653 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-19 00:45:16,659 INFO L276 IsEmpty]: Start isEmpty. Operand has 105 states, 87 states have (on average 1.4252873563218391) internal successors, (124), 88 states have internal predecessors, (124), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-19 00:45:16,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-19 00:45:16,676 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:45:16,677 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:45:16,678 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:45:16,685 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:45:16,686 INFO L85 PathProgramCache]: Analyzing trace with hash 1295783042, now seen corresponding path program 1 times [2024-11-19 00:45:16,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:45:16,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369445129] [2024-11-19 00:45:16,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:45:16,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:45:16,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:45:17,139 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2024-11-19 00:45:17,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:45:17,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369445129] [2024-11-19 00:45:17,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [369445129] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 00:45:17,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [13170872] [2024-11-19 00:45:17,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:45:17,144 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 00:45:17,145 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 00:45:17,147 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 00:45:17,153 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 00:45:17,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:45:17,449 INFO L255 TraceCheckSpWp]: Trace formula consists of 538 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-19 00:45:17,459 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 00:45:17,496 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2024-11-19 00:45:17,496 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 00:45:17,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [13170872] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:45:17,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 00:45:17,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-19 00:45:17,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268527532] [2024-11-19 00:45:17,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:45:17,508 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-19 00:45:17,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:45:17,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-19 00:45:17,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 00:45:17,539 INFO L87 Difference]: Start difference. First operand has 105 states, 87 states have (on average 1.4252873563218391) internal successors, (124), 88 states have internal predecessors, (124), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Second operand has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-19 00:45:17,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:45:17,568 INFO L93 Difference]: Finished difference Result 203 states and 317 transitions. [2024-11-19 00:45:17,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-19 00:45:17,585 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) Word has length 124 [2024-11-19 00:45:17,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:45:17,604 INFO L225 Difference]: With dead ends: 203 [2024-11-19 00:45:17,604 INFO L226 Difference]: Without dead ends: 101 [2024-11-19 00:45:17,616 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 125 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 00:45:17,620 INFO L432 NwaCegarLoop]: 147 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, 147 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 00:45:17,621 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 00:45:17,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2024-11-19 00:45:17,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2024-11-19 00:45:17,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 84 states have (on average 1.3928571428571428) internal successors, (117), 84 states have internal predecessors, (117), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-19 00:45:17,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 147 transitions. [2024-11-19 00:45:17,695 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 147 transitions. Word has length 124 [2024-11-19 00:45:17,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:45:17,695 INFO L471 AbstractCegarLoop]: Abstraction has 101 states and 147 transitions. [2024-11-19 00:45:17,696 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-19 00:45:17,696 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 147 transitions. [2024-11-19 00:45:17,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-19 00:45:17,699 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:45:17,699 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:45:17,719 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 00:45:17,900 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 00:45:17,901 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:45:17,902 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:45:17,902 INFO L85 PathProgramCache]: Analyzing trace with hash 1476380324, now seen corresponding path program 1 times [2024-11-19 00:45:17,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:45:17,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16988325] [2024-11-19 00:45:17,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:45:17,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:45:17,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:45:18,256 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-19 00:45:18,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:45:18,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16988325] [2024-11-19 00:45:18,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [16988325] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:45:18,257 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:45:18,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 00:45:18,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407867201] [2024-11-19 00:45:18,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:45:18,258 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 00:45:18,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:45:18,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 00:45:18,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 00:45:18,262 INFO L87 Difference]: Start difference. First operand 101 states and 147 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-19 00:45:18,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:45:18,323 INFO L93 Difference]: Finished difference Result 202 states and 295 transitions. [2024-11-19 00:45:18,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 00:45:18,324 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 124 [2024-11-19 00:45:18,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:45:18,328 INFO L225 Difference]: With dead ends: 202 [2024-11-19 00:45:18,328 INFO L226 Difference]: Without dead ends: 104 [2024-11-19 00:45:18,329 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 00:45:18,330 INFO L432 NwaCegarLoop]: 144 mSDtfsCounter, 1 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 421 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 00:45:18,331 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 421 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 00:45:18,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2024-11-19 00:45:18,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 103. [2024-11-19 00:45:18,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 86 states have (on average 1.3837209302325582) internal successors, (119), 86 states have internal predecessors, (119), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-19 00:45:18,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 149 transitions. [2024-11-19 00:45:18,349 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 149 transitions. Word has length 124 [2024-11-19 00:45:18,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:45:18,353 INFO L471 AbstractCegarLoop]: Abstraction has 103 states and 149 transitions. [2024-11-19 00:45:18,356 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-19 00:45:18,357 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 149 transitions. [2024-11-19 00:45:18,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-19 00:45:18,359 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:45:18,359 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:45:18,359 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 00:45:18,360 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:45:18,360 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:45:18,361 INFO L85 PathProgramCache]: Analyzing trace with hash -2138528602, now seen corresponding path program 1 times [2024-11-19 00:45:18,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:45:18,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [227277133] [2024-11-19 00:45:18,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:45:18,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:45:18,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:45:18,585 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-19 00:45:18,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:45:18,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [227277133] [2024-11-19 00:45:18,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [227277133] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:45:18,586 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:45:18,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 00:45:18,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449520623] [2024-11-19 00:45:18,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:45:18,589 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 00:45:18,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:45:18,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 00:45:18,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 00:45:18,591 INFO L87 Difference]: Start difference. First operand 103 states and 149 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-19 00:45:18,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:45:18,621 INFO L93 Difference]: Finished difference Result 206 states and 299 transitions. [2024-11-19 00:45:18,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 00:45:18,627 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 124 [2024-11-19 00:45:18,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:45:18,630 INFO L225 Difference]: With dead ends: 206 [2024-11-19 00:45:18,632 INFO L226 Difference]: Without dead ends: 106 [2024-11-19 00:45:18,633 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 00:45:18,634 INFO L432 NwaCegarLoop]: 144 mSDtfsCounter, 1 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 424 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 00:45:18,637 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 424 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 00:45:18,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2024-11-19 00:45:18,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 105. [2024-11-19 00:45:18,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 88 states have (on average 1.375) internal successors, (121), 88 states have internal predecessors, (121), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-19 00:45:18,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 151 transitions. [2024-11-19 00:45:18,672 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 151 transitions. Word has length 124 [2024-11-19 00:45:18,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:45:18,672 INFO L471 AbstractCegarLoop]: Abstraction has 105 states and 151 transitions. [2024-11-19 00:45:18,673 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-19 00:45:18,673 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 151 transitions. [2024-11-19 00:45:18,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-19 00:45:18,678 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:45:18,678 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:45:18,679 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 00:45:18,679 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:45:18,679 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:45:18,680 INFO L85 PathProgramCache]: Analyzing trace with hash -2136681560, now seen corresponding path program 1 times [2024-11-19 00:45:18,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:45:18,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586675316] [2024-11-19 00:45:18,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:45:18,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:45:18,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:45:20,190 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-19 00:45:20,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:45:20,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586675316] [2024-11-19 00:45:20,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1586675316] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:45:20,191 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:45:20,191 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-19 00:45:20,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063398043] [2024-11-19 00:45:20,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:45:20,191 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 00:45:20,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:45:20,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 00:45:20,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-19 00:45:20,193 INFO L87 Difference]: Start difference. First operand 105 states and 151 transitions. Second operand has 9 states, 8 states have (on average 6.5) internal successors, (52), 9 states have internal predecessors, (52), 4 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) [2024-11-19 00:45:20,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:45:20,618 INFO L93 Difference]: Finished difference Result 232 states and 333 transitions. [2024-11-19 00:45:20,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 00:45:20,619 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.5) internal successors, (52), 9 states have internal predecessors, (52), 4 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) Word has length 124 [2024-11-19 00:45:20,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:45:20,621 INFO L225 Difference]: With dead ends: 232 [2024-11-19 00:45:20,621 INFO L226 Difference]: Without dead ends: 130 [2024-11-19 00:45:20,622 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2024-11-19 00:45:20,626 INFO L432 NwaCegarLoop]: 168 mSDtfsCounter, 396 mSDsluCounter, 490 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 396 SdHoareTripleChecker+Valid, 658 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 00:45:20,628 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [396 Valid, 658 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 00:45:20,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2024-11-19 00:45:20,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 129. [2024-11-19 00:45:20,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 104 states have (on average 1.3365384615384615) internal successors, (139), 105 states have internal predecessors, (139), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-19 00:45:20,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 183 transitions. [2024-11-19 00:45:20,660 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 183 transitions. Word has length 124 [2024-11-19 00:45:20,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:45:20,661 INFO L471 AbstractCegarLoop]: Abstraction has 129 states and 183 transitions. [2024-11-19 00:45:20,661 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.5) internal successors, (52), 9 states have internal predecessors, (52), 4 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) [2024-11-19 00:45:20,661 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 183 transitions. [2024-11-19 00:45:20,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-19 00:45:20,666 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:45:20,667 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:45:20,667 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 00:45:20,667 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:45:20,667 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:45:20,668 INFO L85 PathProgramCache]: Analyzing trace with hash 335561221, now seen corresponding path program 1 times [2024-11-19 00:45:20,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:45:20,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787714807] [2024-11-19 00:45:20,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:45:20,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:45:20,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:45:21,286 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-19 00:45:21,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:45:21,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787714807] [2024-11-19 00:45:21,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [787714807] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:45:21,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:45:21,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 00:45:21,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147252185] [2024-11-19 00:45:21,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:45:21,289 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 00:45:21,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:45:21,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 00:45:21,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-19 00:45:21,293 INFO L87 Difference]: Start difference. First operand 129 states and 183 transitions. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-19 00:45:21,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:45:21,586 INFO L93 Difference]: Finished difference Result 340 states and 481 transitions. [2024-11-19 00:45:21,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 00:45:21,587 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 127 [2024-11-19 00:45:21,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:45:21,591 INFO L225 Difference]: With dead ends: 340 [2024-11-19 00:45:21,592 INFO L226 Difference]: Without dead ends: 234 [2024-11-19 00:45:21,594 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-19 00:45:21,595 INFO L432 NwaCegarLoop]: 189 mSDtfsCounter, 419 mSDsluCounter, 414 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 419 SdHoareTripleChecker+Valid, 603 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 00:45:21,596 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [419 Valid, 603 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 00:45:21,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2024-11-19 00:45:21,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 230. [2024-11-19 00:45:21,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 188 states have (on average 1.3457446808510638) internal successors, (253), 190 states have internal predecessors, (253), 37 states have call successors, (37), 4 states have call predecessors, (37), 4 states have return successors, (37), 35 states have call predecessors, (37), 37 states have call successors, (37) [2024-11-19 00:45:21,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 327 transitions. [2024-11-19 00:45:21,642 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 327 transitions. Word has length 127 [2024-11-19 00:45:21,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:45:21,643 INFO L471 AbstractCegarLoop]: Abstraction has 230 states and 327 transitions. [2024-11-19 00:45:21,643 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-19 00:45:21,643 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 327 transitions. [2024-11-19 00:45:21,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-19 00:45:21,645 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:45:21,645 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:45:21,645 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 00:45:21,645 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:45:21,646 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:45:21,647 INFO L85 PathProgramCache]: Analyzing trace with hash -944302457, now seen corresponding path program 1 times [2024-11-19 00:45:21,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:45:21,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620758547] [2024-11-19 00:45:21,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:45:21,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:45:21,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:45:24,163 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-19 00:45:24,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:45:24,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620758547] [2024-11-19 00:45:24,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [620758547] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:45:24,164 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:45:24,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-19 00:45:24,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224654218] [2024-11-19 00:45:24,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:45:24,165 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 00:45:24,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:45:24,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 00:45:24,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-19 00:45:24,166 INFO L87 Difference]: Start difference. First operand 230 states and 327 transitions. Second operand has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 9 states have internal predecessors, (55), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-19 00:45:24,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:45:24,973 INFO L93 Difference]: Finished difference Result 581 states and 825 transitions. [2024-11-19 00:45:24,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 00:45:24,974 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 9 states have internal predecessors, (55), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 127 [2024-11-19 00:45:24,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:45:24,977 INFO L225 Difference]: With dead ends: 581 [2024-11-19 00:45:24,978 INFO L226 Difference]: Without dead ends: 374 [2024-11-19 00:45:24,980 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2024-11-19 00:45:24,982 INFO L432 NwaCegarLoop]: 127 mSDtfsCounter, 381 mSDsluCounter, 451 mSDsCounter, 0 mSdLazyCounter, 216 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 381 SdHoareTripleChecker+Valid, 578 SdHoareTripleChecker+Invalid, 223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-19 00:45:24,983 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [381 Valid, 578 Invalid, 223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 216 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-19 00:45:24,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 374 states. [2024-11-19 00:45:25,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 374 to 370. [2024-11-19 00:45:25,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 370 states, 324 states have (on average 1.382716049382716) internal successors, (448), 328 states have internal predecessors, (448), 39 states have call successors, (39), 6 states have call predecessors, (39), 6 states have return successors, (39), 35 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-19 00:45:25,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 526 transitions. [2024-11-19 00:45:25,045 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 526 transitions. Word has length 127 [2024-11-19 00:45:25,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:45:25,045 INFO L471 AbstractCegarLoop]: Abstraction has 370 states and 526 transitions. [2024-11-19 00:45:25,046 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 9 states have internal predecessors, (55), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-19 00:45:25,046 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 526 transitions. [2024-11-19 00:45:25,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-19 00:45:25,049 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:45:25,049 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:45:25,049 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-19 00:45:25,050 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:45:25,050 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:45:25,050 INFO L85 PathProgramCache]: Analyzing trace with hash -1955419707, now seen corresponding path program 1 times [2024-11-19 00:45:25,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:45:25,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135576946] [2024-11-19 00:45:25,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:45:25,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:45:25,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:45:25,789 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-19 00:45:25,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:45:25,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135576946] [2024-11-19 00:45:25,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2135576946] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:45:25,790 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:45:25,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-19 00:45:25,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280723982] [2024-11-19 00:45:25,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:45:25,790 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-19 00:45:25,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:45:25,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-19 00:45:25,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2024-11-19 00:45:25,791 INFO L87 Difference]: Start difference. First operand 370 states and 526 transitions. Second operand has 11 states, 11 states have (on average 5.0) internal successors, (55), 11 states have internal predecessors, (55), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-19 00:45:26,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:45:26,376 INFO L93 Difference]: Finished difference Result 743 states and 1051 transitions. [2024-11-19 00:45:26,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 00:45:26,377 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.0) internal successors, (55), 11 states have internal predecessors, (55), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 127 [2024-11-19 00:45:26,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:45:26,379 INFO L225 Difference]: With dead ends: 743 [2024-11-19 00:45:26,380 INFO L226 Difference]: Without dead ends: 396 [2024-11-19 00:45:26,381 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2024-11-19 00:45:26,382 INFO L432 NwaCegarLoop]: 184 mSDtfsCounter, 227 mSDsluCounter, 976 mSDsCounter, 0 mSdLazyCounter, 515 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 1160 SdHoareTripleChecker+Invalid, 516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 515 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-19 00:45:26,382 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [227 Valid, 1160 Invalid, 516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 515 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-19 00:45:26,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396 states. [2024-11-19 00:45:26,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396 to 393. [2024-11-19 00:45:26,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 335 states have (on average 1.364179104477612) internal successors, (457), 339 states have internal predecessors, (457), 49 states have call successors, (49), 8 states have call predecessors, (49), 8 states have return successors, (49), 45 states have call predecessors, (49), 49 states have call successors, (49) [2024-11-19 00:45:26,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 555 transitions. [2024-11-19 00:45:26,466 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 555 transitions. Word has length 127 [2024-11-19 00:45:26,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:45:26,466 INFO L471 AbstractCegarLoop]: Abstraction has 393 states and 555 transitions. [2024-11-19 00:45:26,467 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.0) internal successors, (55), 11 states have internal predecessors, (55), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-19 00:45:26,467 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 555 transitions. [2024-11-19 00:45:26,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-19 00:45:26,469 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:45:26,470 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:45:26,470 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-19 00:45:26,470 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:45:26,471 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:45:26,471 INFO L85 PathProgramCache]: Analyzing trace with hash -882262843, now seen corresponding path program 1 times [2024-11-19 00:45:26,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:45:26,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119072460] [2024-11-19 00:45:26,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:45:26,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:45:26,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:45:27,200 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-19 00:45:27,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:45:27,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2119072460] [2024-11-19 00:45:27,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2119072460] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:45:27,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:45:27,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-19 00:45:27,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628742775] [2024-11-19 00:45:27,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:45:27,201 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 00:45:27,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:45:27,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 00:45:27,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-11-19 00:45:27,205 INFO L87 Difference]: Start difference. First operand 393 states and 555 transitions. Second operand has 10 states, 10 states have (on average 5.5) internal successors, (55), 10 states have internal predecessors, (55), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-19 00:45:27,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:45:27,781 INFO L93 Difference]: Finished difference Result 776 states and 1089 transitions. [2024-11-19 00:45:27,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-19 00:45:27,782 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.5) internal successors, (55), 10 states have internal predecessors, (55), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 127 [2024-11-19 00:45:27,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:45:27,785 INFO L225 Difference]: With dead ends: 776 [2024-11-19 00:45:27,785 INFO L226 Difference]: Without dead ends: 406 [2024-11-19 00:45:27,788 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2024-11-19 00:45:27,789 INFO L432 NwaCegarLoop]: 179 mSDtfsCounter, 353 mSDsluCounter, 849 mSDsCounter, 0 mSdLazyCounter, 369 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 353 SdHoareTripleChecker+Valid, 1028 SdHoareTripleChecker+Invalid, 408 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 369 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-19 00:45:27,790 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [353 Valid, 1028 Invalid, 408 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 369 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-19 00:45:27,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 406 states. [2024-11-19 00:45:27,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 406 to 379. [2024-11-19 00:45:27,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 379 states, 329 states have (on average 1.3677811550151975) internal successors, (450), 333 states have internal predecessors, (450), 41 states have call successors, (41), 8 states have call predecessors, (41), 8 states have return successors, (41), 37 states have call predecessors, (41), 41 states have call successors, (41) [2024-11-19 00:45:27,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 532 transitions. [2024-11-19 00:45:27,852 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 532 transitions. Word has length 127 [2024-11-19 00:45:27,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:45:27,853 INFO L471 AbstractCegarLoop]: Abstraction has 379 states and 532 transitions. [2024-11-19 00:45:27,853 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.5) internal successors, (55), 10 states have internal predecessors, (55), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-19 00:45:27,853 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 532 transitions. [2024-11-19 00:45:27,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-19 00:45:27,856 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:45:27,857 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:45:27,857 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-19 00:45:27,857 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:45:27,857 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:45:27,858 INFO L85 PathProgramCache]: Analyzing trace with hash -1893380093, now seen corresponding path program 1 times [2024-11-19 00:45:27,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:45:27,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435036670] [2024-11-19 00:45:27,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:45:27,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:45:27,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:45:28,627 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-19 00:45:28,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:45:28,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435036670] [2024-11-19 00:45:28,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [435036670] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:45:28,629 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:45:28,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-19 00:45:28,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868268449] [2024-11-19 00:45:28,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:45:28,630 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 00:45:28,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:45:28,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 00:45:28,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-19 00:45:28,631 INFO L87 Difference]: Start difference. First operand 379 states and 532 transitions. Second operand has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 9 states have internal predecessors, (55), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-19 00:45:29,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:45:29,072 INFO L93 Difference]: Finished difference Result 747 states and 1041 transitions. [2024-11-19 00:45:29,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 00:45:29,073 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 9 states have internal predecessors, (55), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 127 [2024-11-19 00:45:29,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:45:29,075 INFO L225 Difference]: With dead ends: 747 [2024-11-19 00:45:29,075 INFO L226 Difference]: Without dead ends: 391 [2024-11-19 00:45:29,077 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2024-11-19 00:45:29,080 INFO L432 NwaCegarLoop]: 197 mSDtfsCounter, 217 mSDsluCounter, 726 mSDsCounter, 0 mSdLazyCounter, 329 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 SdHoareTripleChecker+Valid, 923 SdHoareTripleChecker+Invalid, 333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 00:45:29,080 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [217 Valid, 923 Invalid, 333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 329 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 00:45:29,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391 states. [2024-11-19 00:45:29,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 391 to 289. [2024-11-19 00:45:29,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 289 states, 248 states have (on average 1.375) internal successors, (341), 250 states have internal predecessors, (341), 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 00:45:29,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 289 states and 407 transitions. [2024-11-19 00:45:29,134 INFO L78 Accepts]: Start accepts. Automaton has 289 states and 407 transitions. Word has length 127 [2024-11-19 00:45:29,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:45:29,135 INFO L471 AbstractCegarLoop]: Abstraction has 289 states and 407 transitions. [2024-11-19 00:45:29,135 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 9 states have internal predecessors, (55), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-19 00:45:29,135 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 407 transitions. [2024-11-19 00:45:29,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-19 00:45:29,136 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:45:29,137 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:45:29,137 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-19 00:45:29,137 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:45:29,137 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:45:29,137 INFO L85 PathProgramCache]: Analyzing trace with hash -166082939, now seen corresponding path program 1 times [2024-11-19 00:45:29,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:45:29,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178829162] [2024-11-19 00:45:29,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:45:29,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:45:29,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:45:30,040 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-19 00:45:30,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:45:30,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178829162] [2024-11-19 00:45:30,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [178829162] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:45:30,041 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:45:30,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-19 00:45:30,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178569672] [2024-11-19 00:45:30,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:45:30,041 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-19 00:45:30,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:45:30,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-19 00:45:30,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-11-19 00:45:30,042 INFO L87 Difference]: Start difference. First operand 289 states and 407 transitions. Second operand has 12 states, 12 states have (on average 4.583333333333333) internal successors, (55), 12 states have internal predecessors, (55), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-19 00:45:30,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:45:30,926 INFO L93 Difference]: Finished difference Result 625 states and 871 transitions. [2024-11-19 00:45:30,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 00:45:30,927 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.583333333333333) internal successors, (55), 12 states have internal predecessors, (55), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 127 [2024-11-19 00:45:30,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:45:30,929 INFO L225 Difference]: With dead ends: 625 [2024-11-19 00:45:30,929 INFO L226 Difference]: Without dead ends: 358 [2024-11-19 00:45:30,930 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=69, Invalid=237, Unknown=0, NotChecked=0, Total=306 [2024-11-19 00:45:30,931 INFO L432 NwaCegarLoop]: 202 mSDtfsCounter, 416 mSDsluCounter, 918 mSDsCounter, 0 mSdLazyCounter, 799 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 416 SdHoareTripleChecker+Valid, 1120 SdHoareTripleChecker+Invalid, 860 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 799 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-19 00:45:30,931 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [416 Valid, 1120 Invalid, 860 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 799 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-19 00:45:30,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2024-11-19 00:45:30,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 287. [2024-11-19 00:45:30,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 287 states, 246 states have (on average 1.3699186991869918) internal successors, (337), 248 states have internal predecessors, (337), 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 00:45:30,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 403 transitions. [2024-11-19 00:45:30,984 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 403 transitions. Word has length 127 [2024-11-19 00:45:30,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:45:30,985 INFO L471 AbstractCegarLoop]: Abstraction has 287 states and 403 transitions. [2024-11-19 00:45:30,985 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.583333333333333) internal successors, (55), 12 states have internal predecessors, (55), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-19 00:45:30,985 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 403 transitions. [2024-11-19 00:45:30,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-19 00:45:30,986 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:45:30,987 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:45:30,987 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-19 00:45:30,987 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:45:30,987 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:45:30,987 INFO L85 PathProgramCache]: Analyzing trace with hash 907073925, now seen corresponding path program 1 times [2024-11-19 00:45:30,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:45:30,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068387313] [2024-11-19 00:45:30,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:45:30,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:45:31,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:45:31,843 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-19 00:45:31,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:45:31,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068387313] [2024-11-19 00:45:31,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2068387313] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:45:31,844 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:45:31,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-19 00:45:31,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472882640] [2024-11-19 00:45:31,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:45:31,845 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-19 00:45:31,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:45:31,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-19 00:45:31,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-11-19 00:45:31,846 INFO L87 Difference]: Start difference. First operand 287 states and 403 transitions. Second operand has 12 states, 12 states have (on average 4.583333333333333) internal successors, (55), 12 states have internal predecessors, (55), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-19 00:45:32,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:45:32,654 INFO L93 Difference]: Finished difference Result 616 states and 857 transitions. [2024-11-19 00:45:32,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 00:45:32,655 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.583333333333333) internal successors, (55), 12 states have internal predecessors, (55), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 127 [2024-11-19 00:45:32,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:45:32,658 INFO L225 Difference]: With dead ends: 616 [2024-11-19 00:45:32,658 INFO L226 Difference]: Without dead ends: 352 [2024-11-19 00:45:32,659 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=69, Invalid=237, Unknown=0, NotChecked=0, Total=306 [2024-11-19 00:45:32,659 INFO L432 NwaCegarLoop]: 159 mSDtfsCounter, 340 mSDsluCounter, 798 mSDsCounter, 0 mSdLazyCounter, 649 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 340 SdHoareTripleChecker+Valid, 957 SdHoareTripleChecker+Invalid, 717 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 649 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-19 00:45:32,660 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [340 Valid, 957 Invalid, 717 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 649 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-19 00:45:32,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 352 states. [2024-11-19 00:45:32,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 352 to 281. [2024-11-19 00:45:32,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 281 states, 240 states have (on average 1.3708333333333333) internal successors, (329), 242 states have internal predecessors, (329), 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 00:45:32,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 395 transitions. [2024-11-19 00:45:32,711 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 395 transitions. Word has length 127 [2024-11-19 00:45:32,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:45:32,712 INFO L471 AbstractCegarLoop]: Abstraction has 281 states and 395 transitions. [2024-11-19 00:45:32,712 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.583333333333333) internal successors, (55), 12 states have internal predecessors, (55), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-19 00:45:32,712 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 395 transitions. [2024-11-19 00:45:32,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-19 00:45:32,717 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:45:32,717 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:45:32,718 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-19 00:45:32,718 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:45:32,718 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:45:32,718 INFO L85 PathProgramCache]: Analyzing trace with hash -153417216, now seen corresponding path program 1 times [2024-11-19 00:45:32,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:45:32,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191139201] [2024-11-19 00:45:32,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:45:32,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:45:32,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:45:33,562 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-19 00:45:33,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:45:33,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191139201] [2024-11-19 00:45:33,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [191139201] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:45:33,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:45:33,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-19 00:45:33,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417677137] [2024-11-19 00:45:33,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:45:33,564 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 00:45:33,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:45:33,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 00:45:33,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-11-19 00:45:33,565 INFO L87 Difference]: Start difference. First operand 281 states and 395 transitions. Second operand has 10 states, 10 states have (on average 5.7) internal successors, (57), 10 states have internal predecessors, (57), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-19 00:45:33,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:45:33,828 INFO L93 Difference]: Finished difference Result 543 states and 763 transitions. [2024-11-19 00:45:33,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 00:45:33,829 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.7) internal successors, (57), 10 states have internal predecessors, (57), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 129 [2024-11-19 00:45:33,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:45:33,831 INFO L225 Difference]: With dead ends: 543 [2024-11-19 00:45:33,831 INFO L226 Difference]: Without dead ends: 285 [2024-11-19 00:45:33,832 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2024-11-19 00:45:33,832 INFO L432 NwaCegarLoop]: 123 mSDtfsCounter, 365 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 365 SdHoareTripleChecker+Valid, 385 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 00:45:33,833 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [365 Valid, 385 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 00:45:33,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2024-11-19 00:45:33,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 285. [2024-11-19 00:45:33,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 244 states have (on average 1.3647540983606556) internal successors, (333), 246 states have internal predecessors, (333), 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 00:45:33,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 399 transitions. [2024-11-19 00:45:33,880 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 399 transitions. Word has length 129 [2024-11-19 00:45:33,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:45:33,880 INFO L471 AbstractCegarLoop]: Abstraction has 285 states and 399 transitions. [2024-11-19 00:45:33,880 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.7) internal successors, (57), 10 states have internal predecessors, (57), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-19 00:45:33,881 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 399 transitions. [2024-11-19 00:45:33,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-19 00:45:33,882 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:45:33,882 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:45:33,882 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-19 00:45:33,882 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:45:33,883 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:45:33,883 INFO L85 PathProgramCache]: Analyzing trace with hash -1930271620, now seen corresponding path program 1 times [2024-11-19 00:45:33,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:45:33,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879193257] [2024-11-19 00:45:33,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:45:33,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:45:33,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:45:36,148 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 12 proven. 30 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2024-11-19 00:45:36,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:45:36,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1879193257] [2024-11-19 00:45:36,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1879193257] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 00:45:36,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2057304656] [2024-11-19 00:45:36,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:45:36,149 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 00:45:36,149 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 00:45:36,151 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 00:45:36,152 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 00:45:36,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:45:36,398 INFO L255 TraceCheckSpWp]: Trace formula consists of 576 conjuncts, 37 conjuncts are in the unsatisfiable core [2024-11-19 00:45:36,405 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 00:45:36,834 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 00:45:37,065 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-11-19 00:45:37,622 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 00:45:37,891 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 11 [2024-11-19 00:45:37,896 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 00:45:37,941 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 15 treesize of output 7 [2024-11-19 00:45:38,027 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 25 proven. 267 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2024-11-19 00:45:38,028 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 00:45:38,395 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 44 treesize of output 40 [2024-11-19 00:45:38,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2057304656] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 00:45:38,809 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-19 00:45:38,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 12] total 27 [2024-11-19 00:45:38,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048822151] [2024-11-19 00:45:38,810 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-19 00:45:38,810 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-19 00:45:38,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:45:38,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-19 00:45:38,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=1153, Unknown=0, NotChecked=0, Total=1260 [2024-11-19 00:45:38,812 INFO L87 Difference]: Start difference. First operand 285 states and 399 transitions. Second operand has 27 states, 24 states have (on average 5.333333333333333) internal successors, (128), 25 states have internal predecessors, (128), 9 states have call successors, (30), 6 states have call predecessors, (30), 7 states have return successors, (30), 7 states have call predecessors, (30), 9 states have call successors, (30) [2024-11-19 00:45:43,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:45:43,240 INFO L93 Difference]: Finished difference Result 658 states and 876 transitions. [2024-11-19 00:45:43,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2024-11-19 00:45:43,241 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 24 states have (on average 5.333333333333333) internal successors, (128), 25 states have internal predecessors, (128), 9 states have call successors, (30), 6 states have call predecessors, (30), 7 states have return successors, (30), 7 states have call predecessors, (30), 9 states have call successors, (30) Word has length 129 [2024-11-19 00:45:43,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:45:43,244 INFO L225 Difference]: With dead ends: 658 [2024-11-19 00:45:43,244 INFO L226 Difference]: Without dead ends: 396 [2024-11-19 00:45:43,249 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 292 GetRequests, 212 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1361 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=1092, Invalid=5550, Unknown=0, NotChecked=0, Total=6642 [2024-11-19 00:45:43,250 INFO L432 NwaCegarLoop]: 168 mSDtfsCounter, 1407 mSDsluCounter, 2124 mSDsCounter, 0 mSdLazyCounter, 2275 mSolverCounterSat, 285 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1407 SdHoareTripleChecker+Valid, 2292 SdHoareTripleChecker+Invalid, 2560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 285 IncrementalHoareTripleChecker+Valid, 2275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-19 00:45:43,250 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1407 Valid, 2292 Invalid, 2560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [285 Valid, 2275 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-19 00:45:43,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396 states. [2024-11-19 00:45:43,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396 to 380. [2024-11-19 00:45:43,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 380 states, 311 states have (on average 1.279742765273312) internal successors, (398), 314 states have internal predecessors, (398), 48 states have call successors, (48), 20 states have call predecessors, (48), 20 states have return successors, (48), 45 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-19 00:45:43,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 494 transitions. [2024-11-19 00:45:43,349 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 494 transitions. Word has length 129 [2024-11-19 00:45:43,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:45:43,349 INFO L471 AbstractCegarLoop]: Abstraction has 380 states and 494 transitions. [2024-11-19 00:45:43,350 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 24 states have (on average 5.333333333333333) internal successors, (128), 25 states have internal predecessors, (128), 9 states have call successors, (30), 6 states have call predecessors, (30), 7 states have return successors, (30), 7 states have call predecessors, (30), 9 states have call successors, (30) [2024-11-19 00:45:43,350 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 494 transitions. [2024-11-19 00:45:43,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-19 00:45:43,352 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:45:43,352 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:45:43,372 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 00:45:43,552 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-19 00:45:43,553 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:45:43,553 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:45:43,554 INFO L85 PathProgramCache]: Analyzing trace with hash 836001274, now seen corresponding path program 1 times [2024-11-19 00:45:43,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:45:43,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590372757] [2024-11-19 00:45:43,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:45:43,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:45:43,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:45:43,796 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-19 00:45:43,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:45:43,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590372757] [2024-11-19 00:45:43,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [590372757] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:45:43,797 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:45:43,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 00:45:43,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109804247] [2024-11-19 00:45:43,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:45:43,799 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 00:45:43,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:45:43,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 00:45:43,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 00:45:43,800 INFO L87 Difference]: Start difference. First operand 380 states and 494 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-19 00:45:43,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:45:43,952 INFO L93 Difference]: Finished difference Result 767 states and 990 transitions. [2024-11-19 00:45:43,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 00:45:43,953 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 129 [2024-11-19 00:45:43,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:45:43,955 INFO L225 Difference]: With dead ends: 767 [2024-11-19 00:45:43,955 INFO L226 Difference]: Without dead ends: 414 [2024-11-19 00:45:43,956 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-19 00:45:43,956 INFO L432 NwaCegarLoop]: 191 mSDtfsCounter, 117 mSDsluCounter, 438 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 629 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 00:45:43,956 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 629 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 00:45:43,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 414 states. [2024-11-19 00:45:44,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 414 to 372. [2024-11-19 00:45:44,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 372 states, 306 states have (on average 1.2745098039215685) internal successors, (390), 309 states have internal predecessors, (390), 46 states have call successors, (46), 19 states have call predecessors, (46), 19 states have return successors, (46), 43 states have call predecessors, (46), 46 states have call successors, (46) [2024-11-19 00:45:44,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 372 states and 482 transitions. [2024-11-19 00:45:44,040 INFO L78 Accepts]: Start accepts. Automaton has 372 states and 482 transitions. Word has length 129 [2024-11-19 00:45:44,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:45:44,041 INFO L471 AbstractCegarLoop]: Abstraction has 372 states and 482 transitions. [2024-11-19 00:45:44,041 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-19 00:45:44,041 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 482 transitions. [2024-11-19 00:45:44,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-19 00:45:44,042 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:45:44,042 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:45:44,043 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-19 00:45:44,043 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:45:44,043 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:45:44,043 INFO L85 PathProgramCache]: Analyzing trace with hash -1003900290, now seen corresponding path program 1 times [2024-11-19 00:45:44,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:45:44,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137559254] [2024-11-19 00:45:44,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:45:44,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:45:44,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:45:46,133 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-19 00:45:46,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:45:46,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137559254] [2024-11-19 00:45:46,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [137559254] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:45:46,134 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:45:46,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-19 00:45:46,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392275863] [2024-11-19 00:45:46,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:45:46,135 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-19 00:45:46,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:45:46,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-19 00:45:46,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2024-11-19 00:45:46,136 INFO L87 Difference]: Start difference. First operand 372 states and 482 transitions. Second operand has 12 states, 11 states have (on average 5.181818181818182) internal successors, (57), 12 states have internal predecessors, (57), 4 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) [2024-11-19 00:45:46,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:45:46,738 INFO L93 Difference]: Finished difference Result 875 states and 1134 transitions. [2024-11-19 00:45:46,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 00:45:46,739 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.181818181818182) internal successors, (57), 12 states have internal predecessors, (57), 4 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) Word has length 129 [2024-11-19 00:45:46,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:45:46,742 INFO L225 Difference]: With dead ends: 875 [2024-11-19 00:45:46,743 INFO L226 Difference]: Without dead ends: 542 [2024-11-19 00:45:46,745 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=74, Invalid=198, Unknown=0, NotChecked=0, Total=272 [2024-11-19 00:45:46,746 INFO L432 NwaCegarLoop]: 127 mSDtfsCounter, 234 mSDsluCounter, 633 mSDsCounter, 0 mSdLazyCounter, 368 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 235 SdHoareTripleChecker+Valid, 760 SdHoareTripleChecker+Invalid, 371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 00:45:46,747 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [235 Valid, 760 Invalid, 371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 368 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 00:45:46,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 542 states. [2024-11-19 00:45:46,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 542 to 423. [2024-11-19 00:45:46,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 423 states, 357 states have (on average 1.280112044817927) internal successors, (457), 360 states have internal predecessors, (457), 46 states have call successors, (46), 19 states have call predecessors, (46), 19 states have return successors, (46), 43 states have call predecessors, (46), 46 states have call successors, (46) [2024-11-19 00:45:46,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 549 transitions. [2024-11-19 00:45:46,840 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 549 transitions. Word has length 129 [2024-11-19 00:45:46,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:45:46,841 INFO L471 AbstractCegarLoop]: Abstraction has 423 states and 549 transitions. [2024-11-19 00:45:46,841 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.181818181818182) internal successors, (57), 12 states have internal predecessors, (57), 4 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) [2024-11-19 00:45:46,841 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 549 transitions. [2024-11-19 00:45:46,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-19 00:45:46,842 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:45:46,842 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:45:46,842 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-19 00:45:46,843 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:45:46,843 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:45:46,843 INFO L85 PathProgramCache]: Analyzing trace with hash -364555972, now seen corresponding path program 1 times [2024-11-19 00:45:46,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:45:46,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654124919] [2024-11-19 00:45:46,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:45:46,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:45:46,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:45:47,484 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 9 proven. 33 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2024-11-19 00:45:47,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:45:47,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654124919] [2024-11-19 00:45:47,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [654124919] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 00:45:47,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1820772553] [2024-11-19 00:45:47,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:45:47,485 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 00:45:47,485 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 00:45:47,487 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 00:45:47,489 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 00:45:47,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:45:47,746 INFO L255 TraceCheckSpWp]: Trace formula consists of 576 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-19 00:45:47,755 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 00:45:47,902 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 00:45:48,057 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-11-19 00:45:48,291 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 15 treesize of output 7 [2024-11-19 00:45:48,305 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 22 proven. 203 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2024-11-19 00:45:48,306 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 00:45:48,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1820772553] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 00:45:48,418 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-19 00:45:48,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2024-11-19 00:45:48,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265230949] [2024-11-19 00:45:48,419 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-19 00:45:48,420 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-19 00:45:48,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:45:48,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-19 00:45:48,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=219, Unknown=0, NotChecked=0, Total=272 [2024-11-19 00:45:48,421 INFO L87 Difference]: Start difference. First operand 423 states and 549 transitions. Second operand has 16 states, 14 states have (on average 6.928571428571429) internal successors, (97), 16 states have internal predecessors, (97), 8 states have call successors, (30), 4 states have call predecessors, (30), 6 states have return successors, (30), 6 states have call predecessors, (30), 8 states have call successors, (30) [2024-11-19 00:45:48,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:45:48,915 INFO L93 Difference]: Finished difference Result 605 states and 769 transitions. [2024-11-19 00:45:48,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-19 00:45:48,916 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 14 states have (on average 6.928571428571429) internal successors, (97), 16 states have internal predecessors, (97), 8 states have call successors, (30), 4 states have call predecessors, (30), 6 states have return successors, (30), 6 states have call predecessors, (30), 8 states have call successors, (30) Word has length 129 [2024-11-19 00:45:48,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:45:48,918 INFO L225 Difference]: With dead ends: 605 [2024-11-19 00:45:48,918 INFO L226 Difference]: Without dead ends: 221 [2024-11-19 00:45:48,919 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 236 GetRequests, 214 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=119, Invalid=387, Unknown=0, NotChecked=0, Total=506 [2024-11-19 00:45:48,919 INFO L432 NwaCegarLoop]: 101 mSDtfsCounter, 280 mSDsluCounter, 574 mSDsCounter, 0 mSdLazyCounter, 403 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 293 SdHoareTripleChecker+Valid, 675 SdHoareTripleChecker+Invalid, 473 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 00:45:48,920 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [293 Valid, 675 Invalid, 473 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 403 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 00:45:48,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2024-11-19 00:45:48,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 213. [2024-11-19 00:45:48,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 168 states have (on average 1.2023809523809523) internal successors, (202), 169 states have internal predecessors, (202), 30 states have call successors, (30), 14 states have call predecessors, (30), 14 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-19 00:45:48,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 262 transitions. [2024-11-19 00:45:48,977 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 262 transitions. Word has length 129 [2024-11-19 00:45:48,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:45:48,978 INFO L471 AbstractCegarLoop]: Abstraction has 213 states and 262 transitions. [2024-11-19 00:45:48,978 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 14 states have (on average 6.928571428571429) internal successors, (97), 16 states have internal predecessors, (97), 8 states have call successors, (30), 4 states have call predecessors, (30), 6 states have return successors, (30), 6 states have call predecessors, (30), 8 states have call successors, (30) [2024-11-19 00:45:48,978 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 262 transitions. [2024-11-19 00:45:48,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-19 00:45:48,979 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:45:48,979 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:45:49,001 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-19 00:45:49,180 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 00:45:49,180 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:45:49,181 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:45:49,181 INFO L85 PathProgramCache]: Analyzing trace with hash 1760403261, now seen corresponding path program 1 times [2024-11-19 00:45:49,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:45:49,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203957996] [2024-11-19 00:45:49,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:45:49,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:45:49,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:45:49,761 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-19 00:45:49,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:45:49,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [203957996] [2024-11-19 00:45:49,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [203957996] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:45:49,763 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:45:49,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-19 00:45:49,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383887868] [2024-11-19 00:45:49,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:45:49,764 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 00:45:49,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:45:49,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 00:45:49,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-11-19 00:45:49,765 INFO L87 Difference]: Start difference. First operand 213 states and 262 transitions. Second operand has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-19 00:45:50,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:45:50,162 INFO L93 Difference]: Finished difference Result 424 states and 524 transitions. [2024-11-19 00:45:50,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 00:45:50,163 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 131 [2024-11-19 00:45:50,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:45:50,165 INFO L225 Difference]: With dead ends: 424 [2024-11-19 00:45:50,165 INFO L226 Difference]: Without dead ends: 274 [2024-11-19 00:45:50,165 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-11-19 00:45:50,166 INFO L432 NwaCegarLoop]: 138 mSDtfsCounter, 164 mSDsluCounter, 370 mSDsCounter, 0 mSdLazyCounter, 375 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 508 SdHoareTripleChecker+Invalid, 378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 00:45:50,166 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 508 Invalid, 378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 375 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 00:45:50,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2024-11-19 00:45:50,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 217. [2024-11-19 00:45:50,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 171 states have (on average 1.1929824561403508) internal successors, (204), 172 states have internal predecessors, (204), 30 states have call successors, (30), 15 states have call predecessors, (30), 15 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-19 00:45:50,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 264 transitions. [2024-11-19 00:45:50,256 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 264 transitions. Word has length 131 [2024-11-19 00:45:50,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:45:50,258 INFO L471 AbstractCegarLoop]: Abstraction has 217 states and 264 transitions. [2024-11-19 00:45:50,258 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-19 00:45:50,258 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 264 transitions. [2024-11-19 00:45:50,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-19 00:45:50,260 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:45:50,261 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:45:50,261 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-19 00:45:50,261 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:45:50,262 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:45:50,263 INFO L85 PathProgramCache]: Analyzing trace with hash 1626389755, now seen corresponding path program 1 times [2024-11-19 00:45:50,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:45:50,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073003295] [2024-11-19 00:45:50,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:45:50,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:45:50,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:45:52,607 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 36 proven. 42 refuted. 0 times theorem prover too weak. 342 trivial. 0 not checked. [2024-11-19 00:45:52,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:45:52,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073003295] [2024-11-19 00:45:52,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1073003295] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 00:45:52,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1902342908] [2024-11-19 00:45:52,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:45:52,609 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 00:45:52,609 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 00:45:52,610 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 00:45:52,612 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 00:45:53,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:45:53,469 INFO L255 TraceCheckSpWp]: Trace formula consists of 561 conjuncts, 103 conjuncts are in the unsatisfiable core [2024-11-19 00:45:53,483 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 00:45:54,496 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-11-19 00:45:56,073 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 17 [2024-11-19 00:45:57,422 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 24 [2024-11-19 00:45:58,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 00:45:58,178 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-11-19 00:45:59,104 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 00:46:01,056 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 11 [2024-11-19 00:46:01,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 00:46:01,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 00:46:01,466 INFO L349 Elim1Store]: treesize reduction 49, result has 12.5 percent of original size [2024-11-19 00:46:01,466 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 48 treesize of output 45 [2024-11-19 00:46:01,681 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 15 treesize of output 11 [2024-11-19 00:46:01,686 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2024-11-19 00:46:01,910 INFO L349 Elim1Store]: treesize reduction 32, result has 41.8 percent of original size [2024-11-19 00:46:01,911 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 34 treesize of output 38 [2024-11-19 00:46:02,277 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 17 treesize of output 9 [2024-11-19 00:46:02,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 00:46:02,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 00:46:02,465 INFO L349 Elim1Store]: treesize reduction 12, result has 67.6 percent of original size [2024-11-19 00:46:02,465 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 51 treesize of output 47 [2024-11-19 00:46:02,984 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 00:46:02,984 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 76 treesize of output 76 [2024-11-19 00:46:03,183 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 37 treesize of output 21 [2024-11-19 00:46:03,275 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 19 proven. 347 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2024-11-19 00:46:03,275 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 00:46:04,071 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 15 [2024-11-19 00:46:04,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1902342908] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 00:46:04,593 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-19 00:46:04,594 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 36] total 58 [2024-11-19 00:46:04,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766807593] [2024-11-19 00:46:04,594 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-19 00:46:04,595 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 58 states [2024-11-19 00:46:04,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:46:04,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2024-11-19 00:46:04,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=334, Invalid=4222, Unknown=0, NotChecked=0, Total=4556 [2024-11-19 00:46:04,599 INFO L87 Difference]: Start difference. First operand 217 states and 264 transitions. Second operand has 58 states, 49 states have (on average 2.63265306122449) internal successors, (129), 49 states have internal predecessors, (129), 17 states have call successors, (30), 8 states have call predecessors, (30), 11 states have return successors, (30), 15 states have call predecessors, (30), 17 states have call successors, (30) [2024-11-19 00:46:16,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:46:16,664 INFO L93 Difference]: Finished difference Result 416 states and 503 transitions. [2024-11-19 00:46:16,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2024-11-19 00:46:16,665 INFO L78 Accepts]: Start accepts. Automaton has has 58 states, 49 states have (on average 2.63265306122449) internal successors, (129), 49 states have internal predecessors, (129), 17 states have call successors, (30), 8 states have call predecessors, (30), 11 states have return successors, (30), 15 states have call predecessors, (30), 17 states have call successors, (30) Word has length 131 [2024-11-19 00:46:16,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:46:16,667 INFO L225 Difference]: With dead ends: 416 [2024-11-19 00:46:16,667 INFO L226 Difference]: Without dead ends: 266 [2024-11-19 00:46:16,672 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 255 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 126 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4349 ImplicationChecksByTransitivity, 14.0s TimeCoverageRelationStatistics Valid=1870, Invalid=14386, Unknown=0, NotChecked=0, Total=16256 [2024-11-19 00:46:16,673 INFO L432 NwaCegarLoop]: 85 mSDtfsCounter, 770 mSDsluCounter, 2267 mSDsCounter, 0 mSdLazyCounter, 2855 mSolverCounterSat, 326 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 775 SdHoareTripleChecker+Valid, 2352 SdHoareTripleChecker+Invalid, 3181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 326 IncrementalHoareTripleChecker+Valid, 2855 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-19 00:46:16,673 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [775 Valid, 2352 Invalid, 3181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [326 Valid, 2855 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-19 00:46:16,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2024-11-19 00:46:16,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 237. [2024-11-19 00:46:16,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 186 states have (on average 1.1720430107526882) internal successors, (218), 187 states have internal predecessors, (218), 30 states have call successors, (30), 20 states have call predecessors, (30), 20 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-19 00:46:16,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 278 transitions. [2024-11-19 00:46:16,757 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 278 transitions. Word has length 131 [2024-11-19 00:46:16,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:46:16,757 INFO L471 AbstractCegarLoop]: Abstraction has 237 states and 278 transitions. [2024-11-19 00:46:16,758 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 58 states, 49 states have (on average 2.63265306122449) internal successors, (129), 49 states have internal predecessors, (129), 17 states have call successors, (30), 8 states have call predecessors, (30), 11 states have return successors, (30), 15 states have call predecessors, (30), 17 states have call successors, (30) [2024-11-19 00:46:16,758 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 278 transitions. [2024-11-19 00:46:16,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-19 00:46:16,760 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:46:16,760 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:46:16,782 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 00:46:16,960 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,SelfDestructingSolverStorable17 [2024-11-19 00:46:16,960 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:46:16,961 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:46:16,961 INFO L85 PathProgramCache]: Analyzing trace with hash -1815689352, now seen corresponding path program 1 times [2024-11-19 00:46:16,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:46:16,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166790068] [2024-11-19 00:46:16,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:46:16,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:46:16,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:46:17,176 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 21 proven. 21 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2024-11-19 00:46:17,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:46:17,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166790068] [2024-11-19 00:46:17,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [166790068] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 00:46:17,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [622576714] [2024-11-19 00:46:17,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:46:17,177 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 00:46:17,178 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 00:46:17,179 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 00:46:17,180 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 00:46:17,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:46:17,460 INFO L255 TraceCheckSpWp]: Trace formula consists of 567 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-19 00:46:17,463 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 00:46:17,495 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-19 00:46:17,495 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 00:46:17,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [622576714] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:46:17,495 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 00:46:17,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 10 [2024-11-19 00:46:17,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560284733] [2024-11-19 00:46:17,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:46:17,497 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 00:46:17,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:46:17,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 00:46:17,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-19 00:46:17,498 INFO L87 Difference]: Start difference. First operand 237 states and 278 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-19 00:46:17,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:46:17,607 INFO L93 Difference]: Finished difference Result 395 states and 471 transitions. [2024-11-19 00:46:17,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 00:46:17,609 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 133 [2024-11-19 00:46:17,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:46:17,611 INFO L225 Difference]: With dead ends: 395 [2024-11-19 00:46:17,612 INFO L226 Difference]: Without dead ends: 241 [2024-11-19 00:46:17,613 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-19 00:46:17,614 INFO L432 NwaCegarLoop]: 138 mSDtfsCounter, 0 mSDsluCounter, 528 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 666 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 00:46:17,614 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 666 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 00:46:17,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2024-11-19 00:46:17,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 238. [2024-11-19 00:46:17,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 187 states have (on average 1.1711229946524064) internal successors, (219), 188 states have internal predecessors, (219), 30 states have call successors, (30), 20 states have call predecessors, (30), 20 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-19 00:46:17,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 279 transitions. [2024-11-19 00:46:17,714 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 279 transitions. Word has length 133 [2024-11-19 00:46:17,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:46:17,715 INFO L471 AbstractCegarLoop]: Abstraction has 238 states and 279 transitions. [2024-11-19 00:46:17,715 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-19 00:46:17,715 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 279 transitions. [2024-11-19 00:46:17,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-19 00:46:17,717 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:46:17,717 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:46:17,736 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-19 00:46:17,917 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 00:46:17,918 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:46:17,918 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:46:17,918 INFO L85 PathProgramCache]: Analyzing trace with hash -1785430870, now seen corresponding path program 1 times [2024-11-19 00:46:17,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:46:17,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998429937] [2024-11-19 00:46:17,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:46:17,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms