./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--usb--host--ohci-hcd.ko-main.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 791161d1 Calling Ultimate with: /usr/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/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--usb--host--ohci-hcd.ko-main.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --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 64bit --witnessprinter.graph.data.programhash 0991342cd9e67cbadb964d86a1516812eb3aa45e84d4674c09b8e10a19f475c1 --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-22 23:31:24,279 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 23:31:24,281 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 23:31:24,314 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 23:31:24,316 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 23:31:24,317 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 23:31:24,322 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 23:31:24,328 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 23:31:24,331 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 23:31:24,337 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 23:31:24,338 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 23:31:24,340 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 23:31:24,341 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 23:31:24,343 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 23:31:24,345 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 23:31:24,347 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 23:31:24,348 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 23:31:24,349 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 23:31:24,353 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 23:31:24,355 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 23:31:24,358 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 23:31:24,359 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 23:31:24,361 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 23:31:24,362 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 23:31:24,363 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 23:31:24,367 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 23:31:24,369 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 23:31:24,370 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 23:31:24,371 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 23:31:24,372 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 23:31:24,373 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 23:31:24,373 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 23:31:24,374 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 23:31:24,375 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 23:31:24,376 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 23:31:24,377 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 23:31:24,377 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 23:31:24,377 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 23:31:24,377 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 23:31:24,378 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 23:31:24,378 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 23:31:24,380 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 23:31:24,381 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-22 23:31:24,411 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 23:31:24,412 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 23:31:24,413 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 23:31:24,413 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 23:31:24,414 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-22 23:31:24,414 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-22 23:31:24,414 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 23:31:24,415 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 23:31:24,415 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 23:31:24,416 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 23:31:24,416 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 23:31:24,416 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 23:31:24,416 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-22 23:31:24,416 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-22 23:31:24,417 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-22 23:31:24,417 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 23:31:24,417 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 23:31:24,417 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-22 23:31:24,417 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 23:31:24,418 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 23:31:24,418 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-22 23:31:24,418 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 23:31:24,418 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 23:31:24,418 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-22 23:31:24,419 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-22 23:31:24,419 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 23:31:24,419 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-22 23:31:24,419 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-22 23:31:24,420 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-22 23:31:24,420 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-22 23:31:24,420 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0991342cd9e67cbadb964d86a1516812eb3aa45e84d4674c09b8e10a19f475c1 [2022-07-22 23:31:24,676 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 23:31:24,703 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 23:31:24,706 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 23:31:24,707 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 23:31:24,708 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 23:31:24,710 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--usb--host--ohci-hcd.ko-main.cil.out.i [2022-07-22 23:31:24,774 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/92d9384b1/52255a1434854042abf803ddc758cd92/FLAG6fc486025 [2022-07-22 23:31:25,650 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 23:31:25,651 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--usb--host--ohci-hcd.ko-main.cil.out.i [2022-07-22 23:31:25,691 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/92d9384b1/52255a1434854042abf803ddc758cd92/FLAG6fc486025 [2022-07-22 23:31:26,113 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/92d9384b1/52255a1434854042abf803ddc758cd92 [2022-07-22 23:31:26,115 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 23:31:26,116 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 23:31:26,117 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 23:31:26,117 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 23:31:26,121 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 23:31:26,122 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 11:31:26" (1/1) ... [2022-07-22 23:31:26,124 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7148c338 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:31:26, skipping insertion in model container [2022-07-22 23:31:26,124 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 11:31:26" (1/1) ... [2022-07-22 23:31:26,130 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 23:31:26,249 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 23:31:28,576 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--usb--host--ohci-hcd.ko-main.cil.out.i[339370,339383] [2022-07-22 23:31:28,729 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 23:31:28,771 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 23:31:29,253 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--usb--host--ohci-hcd.ko-main.cil.out.i[339370,339383] [2022-07-22 23:31:29,266 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 23:31:29,418 INFO L208 MainTranslator]: Completed translation [2022-07-22 23:31:29,420 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:31:29 WrapperNode [2022-07-22 23:31:29,420 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 23:31:29,422 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 23:31:29,422 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 23:31:29,422 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 23:31:29,428 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:31:29" (1/1) ... [2022-07-22 23:31:29,574 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:31:29" (1/1) ... [2022-07-22 23:31:29,889 INFO L137 Inliner]: procedures = 326, calls = 4469, calls flagged for inlining = 131, calls inlined = 121, statements flattened = 9217 [2022-07-22 23:31:29,890 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 23:31:29,890 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 23:31:29,891 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 23:31:29,891 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 23:31:29,898 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:31:29" (1/1) ... [2022-07-22 23:31:29,898 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:31:29" (1/1) ... [2022-07-22 23:31:29,955 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:31:29" (1/1) ... [2022-07-22 23:31:29,955 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:31:29" (1/1) ... [2022-07-22 23:31:30,206 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:31:29" (1/1) ... [2022-07-22 23:31:30,260 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:31:29" (1/1) ... [2022-07-22 23:31:30,348 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:31:29" (1/1) ... [2022-07-22 23:31:30,401 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 23:31:30,403 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 23:31:30,403 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 23:31:30,403 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 23:31:30,404 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:31:29" (1/1) ... [2022-07-22 23:31:30,412 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 23:31:30,443 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 23:31:30,465 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-22 23:31:30,489 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-22 23:31:30,506 INFO L130 BoogieDeclarations]: Found specification of procedure hcd_to_ohci [2022-07-22 23:31:30,506 INFO L138 BoogieDeclarations]: Found implementation of procedure hcd_to_ohci [2022-07-22 23:31:30,506 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-07-22 23:31:30,507 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-07-22 23:31:30,507 INFO L130 BoogieDeclarations]: Found specification of procedure platform_driver_unregister [2022-07-22 23:31:30,507 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_driver_unregister [2022-07-22 23:31:30,507 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unregister_driver [2022-07-22 23:31:30,507 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unregister_driver [2022-07-22 23:31:30,507 INFO L130 BoogieDeclarations]: Found specification of procedure start_ed_unlink [2022-07-22 23:31:30,508 INFO L138 BoogieDeclarations]: Found implementation of procedure start_ed_unlink [2022-07-22 23:31:30,508 INFO L130 BoogieDeclarations]: Found specification of procedure roothub_status [2022-07-22 23:31:30,508 INFO L138 BoogieDeclarations]: Found implementation of procedure roothub_status [2022-07-22 23:31:30,508 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le32 [2022-07-22 23:31:30,508 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le32 [2022-07-22 23:31:30,508 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_platform_suspend [2022-07-22 23:31:30,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_platform_suspend [2022-07-22 23:31:30,509 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_alloc [2022-07-22 23:31:30,509 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_alloc [2022-07-22 23:31:30,509 INFO L130 BoogieDeclarations]: Found specification of procedure show_list [2022-07-22 23:31:30,509 INFO L138 BoogieDeclarations]: Found implementation of procedure show_list [2022-07-22 23:31:30,509 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_platform_probe [2022-07-22 23:31:30,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_platform_probe [2022-07-22 23:31:30,509 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-22 23:31:30,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-22 23:31:30,510 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_maxp [2022-07-22 23:31:30,510 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_maxp [2022-07-22 23:31:30,510 INFO L130 BoogieDeclarations]: Found specification of procedure hc32_to_cpup [2022-07-22 23:31:30,510 INFO L138 BoogieDeclarations]: Found implementation of procedure hc32_to_cpup [2022-07-22 23:31:30,510 INFO L130 BoogieDeclarations]: Found specification of procedure hcfs2string [2022-07-22 23:31:30,511 INFO L138 BoogieDeclarations]: Found implementation of procedure hcfs2string [2022-07-22 23:31:30,511 INFO L130 BoogieDeclarations]: Found specification of procedure quirk_zfmicro [2022-07-22 23:31:30,511 INFO L138 BoogieDeclarations]: Found implementation of procedure quirk_zfmicro [2022-07-22 23:31:30,511 INFO L130 BoogieDeclarations]: Found specification of procedure usb_disabled [2022-07-22 23:31:30,511 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_disabled [2022-07-22 23:31:30,511 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_hub_status_data [2022-07-22 23:31:30,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_hub_status_data [2022-07-22 23:31:30,512 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_pci_reset [2022-07-22 23:31:30,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_pci_reset [2022-07-22 23:31:30,512 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_shutdown [2022-07-22 23:31:30,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_shutdown [2022-07-22 23:31:30,512 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-07-22 23:31:30,512 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-07-22 23:31:30,513 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-22 23:31:30,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-22 23:31:30,513 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_dump_intr_mask [2022-07-22 23:31:30,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_dump_intr_mask [2022-07-22 23:31:30,513 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_buffer [2022-07-22 23:31:30,513 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_buffer [2022-07-22 23:31:30,514 INFO L130 BoogieDeclarations]: Found specification of procedure _ohci_writel [2022-07-22 23:31:30,514 INFO L138 BoogieDeclarations]: Found implementation of procedure _ohci_writel [2022-07-22 23:31:30,514 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-07-22 23:31:30,514 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-07-22 23:31:30,514 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-22 23:31:30,514 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-22 23:31:30,514 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_hwPSWp [2022-07-22 23:31:30,515 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_hwPSWp [2022-07-22 23:31:30,515 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_platform_resume [2022-07-22 23:31:30,515 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_platform_resume [2022-07-22 23:31:30,515 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_suspend [2022-07-22 23:31:30,515 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_suspend [2022-07-22 23:31:30,515 INFO L130 BoogieDeclarations]: Found specification of procedure debug_output [2022-07-22 23:31:30,516 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_output [2022-07-22 23:31:30,516 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-07-22 23:31:30,516 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-07-22 23:31:30,516 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-22 23:31:30,516 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-22 23:31:30,516 INFO L130 BoogieDeclarations]: Found specification of procedure ed_schedule [2022-07-22 23:31:30,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ed_schedule [2022-07-22 23:31:30,517 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_hcd_init [2022-07-22 23:31:30,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_hcd_init [2022-07-22 23:31:30,517 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_dump_roothub [2022-07-22 23:31:30,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_dump_roothub [2022-07-22 23:31:30,517 INFO L130 BoogieDeclarations]: Found specification of procedure round_jiffies [2022-07-22 23:31:30,517 INFO L138 BoogieDeclarations]: Found implementation of procedure round_jiffies [2022-07-22 23:31:30,518 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2022-07-22 23:31:30,518 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2022-07-22 23:31:30,518 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-22 23:31:30,518 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_stop [2022-07-22 23:31:30,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_stop [2022-07-22 23:31:30,518 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-07-22 23:31:30,518 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-07-22 23:31:30,519 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-22 23:31:30,519 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_create [2022-07-22 23:31:30,519 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_create [2022-07-22 23:31:30,519 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_pci_remove [2022-07-22 23:31:30,519 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_pci_remove [2022-07-22 23:31:30,519 INFO L130 BoogieDeclarations]: Found specification of procedure check_ed [2022-07-22 23:31:30,520 INFO L138 BoogieDeclarations]: Found implementation of procedure check_ed [2022-07-22 23:31:30,520 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_restart [2022-07-22 23:31:30,520 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_restart [2022-07-22 23:31:30,520 INFO L130 BoogieDeclarations]: Found specification of procedure quirk_nec [2022-07-22 23:31:30,520 INFO L138 BoogieDeclarations]: Found implementation of procedure quirk_nec [2022-07-22 23:31:30,520 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-07-22 23:31:30,520 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-07-22 23:31:30,521 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_destroy [2022-07-22 23:31:30,521 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_destroy [2022-07-22 23:31:30,521 INFO L130 BoogieDeclarations]: Found specification of procedure td_free [2022-07-22 23:31:30,521 INFO L138 BoogieDeclarations]: Found implementation of procedure td_free [2022-07-22 23:31:30,521 INFO L130 BoogieDeclarations]: Found specification of procedure broken_suspend [2022-07-22 23:31:30,521 INFO L138 BoogieDeclarations]: Found implementation of procedure broken_suspend [2022-07-22 23:31:30,522 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-22 23:31:30,522 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_rh_resume [2022-07-22 23:31:30,522 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_rh_resume [2022-07-22 23:31:30,522 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_platform_shutdown [2022-07-22 23:31:30,522 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_platform_shutdown [2022-07-22 23:31:30,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-22 23:31:30,522 INFO L130 BoogieDeclarations]: Found specification of procedure roothub_portstatus [2022-07-22 23:31:30,523 INFO L138 BoogieDeclarations]: Found implementation of procedure roothub_portstatus [2022-07-22 23:31:30,523 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_word [2022-07-22 23:31:30,523 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_word [2022-07-22 23:31:30,523 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hc_died [2022-07-22 23:31:30,523 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hc_died [2022-07-22 23:31:30,523 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_platform_remove [2022-07-22 23:31:30,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_platform_remove [2022-07-22 23:31:30,524 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_remove [2022-07-22 23:31:30,524 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_remove [2022-07-22 23:31:30,524 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-07-22 23:31:30,524 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-07-22 23:31:30,524 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_create_dir [2022-07-22 23:31:30,525 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_create_dir [2022-07-22 23:31:30,525 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-07-22 23:31:30,525 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-07-22 23:31:30,525 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-07-22 23:31:30,525 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-07-22 23:31:30,525 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-07-22 23:31:30,525 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-07-22 23:31:30,526 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_resume [2022-07-22 23:31:30,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_resume [2022-07-22 23:31:30,526 INFO L130 BoogieDeclarations]: Found specification of procedure ed_free [2022-07-22 23:31:30,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ed_free [2022-07-22 23:31:30,526 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-07-22 23:31:30,526 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-07-22 23:31:30,527 INFO L130 BoogieDeclarations]: Found specification of procedure usb_put_hcd [2022-07-22 23:31:30,527 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_put_hcd [2022-07-22 23:31:30,527 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_platform_start [2022-07-22 23:31:30,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_platform_start [2022-07-22 23:31:30,527 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_dump [2022-07-22 23:31:30,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_dump [2022-07-22 23:31:30,527 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_frame_no [2022-07-22 23:31:30,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_frame_no [2022-07-22 23:31:30,528 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-07-22 23:31:30,528 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-07-22 23:31:30,528 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2022-07-22 23:31:30,528 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2022-07-22 23:31:30,528 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-07-22 23:31:30,528 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-07-22 23:31:30,529 INFO L130 BoogieDeclarations]: Found specification of procedure sb800_prefetch [2022-07-22 23:31:30,529 INFO L138 BoogieDeclarations]: Found implementation of procedure sb800_prefetch [2022-07-22 23:31:30,529 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_hub_control [2022-07-22 23:31:30,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_hub_control [2022-07-22 23:31:30,529 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_unlink_urb_from_ep [2022-07-22 23:31:30,529 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_unlink_urb_from_ep [2022-07-22 23:31:30,529 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-22 23:31:30,530 INFO L130 BoogieDeclarations]: Found specification of procedure finish_urb [2022-07-22 23:31:30,530 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_urb [2022-07-22 23:31:30,530 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_rh_suspend [2022-07-22 23:31:30,530 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_rh_suspend [2022-07-22 23:31:30,530 INFO L130 BoogieDeclarations]: Found specification of procedure roothub_a [2022-07-22 23:31:30,530 INFO L138 BoogieDeclarations]: Found implementation of procedure roothub_a [2022-07-22 23:31:30,530 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_irq [2022-07-22 23:31:30,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_irq [2022-07-22 23:31:30,531 INFO L130 BoogieDeclarations]: Found specification of procedure rh_state_string [2022-07-22 23:31:30,531 INFO L138 BoogieDeclarations]: Found implementation of procedure rh_state_string [2022-07-22 23:31:30,531 INFO L130 BoogieDeclarations]: Found specification of procedure roothub_b [2022-07-22 23:31:30,531 INFO L138 BoogieDeclarations]: Found implementation of procedure roothub_b [2022-07-22 23:31:30,531 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_urb_enqueue [2022-07-22 23:31:30,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_urb_enqueue [2022-07-22 23:31:30,532 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_start_port_reset [2022-07-22 23:31:30,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_start_port_reset [2022-07-22 23:31:30,532 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_to_hcd [2022-07-22 23:31:30,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_to_hcd [2022-07-22 23:31:30,532 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_pci_start [2022-07-22 23:31:30,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_pci_start [2022-07-22 23:31:30,532 INFO L130 BoogieDeclarations]: Found specification of procedure td_alloc [2022-07-22 23:31:30,533 INFO L138 BoogieDeclarations]: Found implementation of procedure td_alloc [2022-07-22 23:31:30,533 INFO L130 BoogieDeclarations]: Found specification of procedure find_head [2022-07-22 23:31:30,533 INFO L138 BoogieDeclarations]: Found implementation of procedure find_head [2022-07-22 23:31:30,533 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-22 23:31:30,533 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-22 23:31:30,533 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_run [2022-07-22 23:31:30,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_run [2022-07-22 23:31:30,534 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_create_file [2022-07-22 23:31:30,534 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_create_file [2022-07-22 23:31:30,534 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_endpoint_disable [2022-07-22 23:31:30,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_endpoint_disable [2022-07-22 23:31:30,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-22 23:31:30,534 INFO L130 BoogieDeclarations]: Found specification of procedure takeback_td [2022-07-22 23:31:30,534 INFO L138 BoogieDeclarations]: Found implementation of procedure takeback_td [2022-07-22 23:31:30,535 INFO L130 BoogieDeclarations]: Found specification of procedure quirk_amdprefetch [2022-07-22 23:31:30,535 INFO L138 BoogieDeclarations]: Found implementation of procedure quirk_amdprefetch [2022-07-22 23:31:30,535 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2022-07-22 23:31:30,535 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2022-07-22 23:31:30,535 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-22 23:31:30,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-22 23:31:30,536 INFO L130 BoogieDeclarations]: Found specification of procedure _ohci_readl [2022-07-22 23:31:30,536 INFO L138 BoogieDeclarations]: Found implementation of procedure _ohci_readl [2022-07-22 23:31:30,536 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-22 23:31:30,536 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dev_put [2022-07-22 23:31:30,536 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dev_put [2022-07-22 23:31:30,536 INFO L130 BoogieDeclarations]: Found specification of procedure dl_done_list [2022-07-22 23:31:30,536 INFO L138 BoogieDeclarations]: Found implementation of procedure dl_done_list [2022-07-22 23:31:30,537 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_poll_rh_status [2022-07-22 23:31:30,537 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_poll_rh_status [2022-07-22 23:31:30,537 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2022-07-22 23:31:30,537 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2022-07-22 23:31:30,537 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-22 23:31:30,537 INFO L130 BoogieDeclarations]: Found specification of procedure periodic_reinit [2022-07-22 23:31:30,537 INFO L138 BoogieDeclarations]: Found implementation of procedure periodic_reinit [2022-07-22 23:31:30,538 INFO L130 BoogieDeclarations]: Found specification of procedure __le32_to_cpup [2022-07-22 23:31:30,538 INFO L138 BoogieDeclarations]: Found implementation of procedure __le32_to_cpup [2022-07-22 23:31:30,538 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-07-22 23:31:30,538 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-07-22 23:31:30,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-22 23:31:30,538 INFO L130 BoogieDeclarations]: Found specification of procedure td_done [2022-07-22 23:31:30,538 INFO L138 BoogieDeclarations]: Found implementation of procedure td_done [2022-07-22 23:31:30,539 INFO L130 BoogieDeclarations]: Found specification of procedure td_fill [2022-07-22 23:31:30,539 INFO L138 BoogieDeclarations]: Found implementation of procedure td_fill [2022-07-22 23:31:30,539 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_urb_dequeue [2022-07-22 23:31:30,539 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_urb_dequeue [2022-07-22 23:31:30,539 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-07-22 23:31:30,539 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-07-22 23:31:30,539 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_init [2022-07-22 23:31:30,540 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_init [2022-07-22 23:31:30,540 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2022-07-22 23:31:30,540 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2022-07-22 23:31:30,540 INFO L130 BoogieDeclarations]: Found specification of procedure cpu_to_hc16 [2022-07-22 23:31:30,540 INFO L138 BoogieDeclarations]: Found implementation of procedure cpu_to_hc16 [2022-07-22 23:31:30,540 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-07-22 23:31:30,540 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-07-22 23:31:30,541 INFO L130 BoogieDeclarations]: Found specification of procedure quirk_amdiso [2022-07-22 23:31:30,541 INFO L138 BoogieDeclarations]: Found implementation of procedure quirk_amdiso [2022-07-22 23:31:30,541 INFO L130 BoogieDeclarations]: Found specification of procedure default_llseek [2022-07-22 23:31:30,541 INFO L138 BoogieDeclarations]: Found implementation of procedure default_llseek [2022-07-22 23:31:30,541 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-07-22 23:31:30,541 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-07-22 23:31:30,541 INFO L130 BoogieDeclarations]: Found specification of procedure ed_deschedule [2022-07-22 23:31:30,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ed_deschedule [2022-07-22 23:31:30,542 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_resume_root_hub [2022-07-22 23:31:30,542 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_resume_root_hub [2022-07-22 23:31:30,542 INFO L130 BoogieDeclarations]: Found specification of procedure urb_free_priv [2022-07-22 23:31:30,542 INFO L138 BoogieDeclarations]: Found implementation of procedure urb_free_priv [2022-07-22 23:31:30,542 INFO L130 BoogieDeclarations]: Found specification of procedure finish_unlinks [2022-07-22 23:31:30,542 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_unlinks [2022-07-22 23:31:30,543 INFO L130 BoogieDeclarations]: Found specification of procedure hc32_to_cpu [2022-07-22 23:31:30,543 INFO L138 BoogieDeclarations]: Found implementation of procedure hc32_to_cpu [2022-07-22 23:31:30,543 INFO L130 BoogieDeclarations]: Found specification of procedure platform_set_drvdata [2022-07-22 23:31:30,543 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_set_drvdata [2022-07-22 23:31:30,543 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_dump_status [2022-07-22 23:31:30,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_dump_status [2022-07-22 23:31:30,543 INFO L130 BoogieDeclarations]: Found specification of procedure maybe_print_eds [2022-07-22 23:31:30,544 INFO L138 BoogieDeclarations]: Found implementation of procedure maybe_print_eds [2022-07-22 23:31:30,544 INFO L130 BoogieDeclarations]: Found specification of procedure debug_close [2022-07-22 23:31:30,544 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_close [2022-07-22 23:31:30,544 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_get_frame [2022-07-22 23:31:30,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_get_frame [2022-07-22 23:31:30,544 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_debug_buffer [2022-07-22 23:31:30,545 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_debug_buffer [2022-07-22 23:31:30,545 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-07-22 23:31:30,545 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-07-22 23:31:30,545 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2022-07-22 23:31:30,546 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2022-07-22 23:31:30,546 INFO L130 BoogieDeclarations]: Found specification of procedure cpu_to_hc32 [2022-07-22 23:31:30,546 INFO L138 BoogieDeclarations]: Found implementation of procedure cpu_to_hc32 [2022-07-22 23:31:30,546 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-07-22 23:31:30,546 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-07-22 23:31:30,546 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_usb_reset [2022-07-22 23:31:30,546 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_usb_reset [2022-07-22 23:31:30,547 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_bus_resume [2022-07-22 23:31:30,547 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_bus_resume [2022-07-22 23:31:30,547 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2022-07-22 23:31:30,547 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2022-07-22 23:31:30,547 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-07-22 23:31:30,547 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-07-22 23:31:30,547 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_bus_suspend [2022-07-22 23:31:30,548 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_bus_suspend [2022-07-22 23:31:30,548 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_platform_reset [2022-07-22 23:31:30,548 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_platform_reset [2022-07-22 23:31:30,548 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_pci_shutdown [2022-07-22 23:31:30,548 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_pci_shutdown [2022-07-22 23:31:30,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-22 23:31:30,548 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 23:31:30,548 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 23:31:30,549 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_free [2022-07-22 23:31:30,549 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_free [2022-07-22 23:31:31,594 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 23:31:31,597 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 23:31:39,110 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 23:31:39,143 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 23:31:39,143 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-07-22 23:31:39,148 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 11:31:39 BoogieIcfgContainer [2022-07-22 23:31:39,149 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 23:31:39,150 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-22 23:31:39,151 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-22 23:31:39,154 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-22 23:31:39,154 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.07 11:31:26" (1/3) ... [2022-07-22 23:31:39,155 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39f2d220 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 11:31:39, skipping insertion in model container [2022-07-22 23:31:39,155 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:31:29" (2/3) ... [2022-07-22 23:31:39,156 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39f2d220 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 11:31:39, skipping insertion in model container [2022-07-22 23:31:39,156 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 11:31:39" (3/3) ... [2022-07-22 23:31:39,157 INFO L111 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--usb--host--ohci-hcd.ko-main.cil.out.i [2022-07-22 23:31:39,172 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-22 23:31:39,172 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-22 23:31:39,348 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-22 23:31:39,354 INFO L357 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, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@52d6398b, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@2124ed51 [2022-07-22 23:31:39,355 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-22 23:31:39,369 INFO L276 IsEmpty]: Start isEmpty. Operand has 3516 states, 2534 states have (on average 1.436069455406472) internal successors, (3639), 2605 states have internal predecessors, (3639), 848 states have call successors, (848), 136 states have call predecessors, (848), 136 states have return successors, (848), 839 states have call predecessors, (848), 848 states have call successors, (848) [2022-07-22 23:31:39,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-07-22 23:31:39,380 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:31:39,381 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 23:31:39,381 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:31:39,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:31:39,388 INFO L85 PathProgramCache]: Analyzing trace with hash -358052195, now seen corresponding path program 1 times [2022-07-22 23:31:39,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 23:31:39,399 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064803318] [2022-07-22 23:31:39,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:31:39,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 23:31:39,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:31:40,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 23:31:40,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 23:31:40,177 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064803318] [2022-07-22 23:31:40,178 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1064803318] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 23:31:40,178 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 23:31:40,178 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 23:31:40,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172866591] [2022-07-22 23:31:40,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 23:31:40,184 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 23:31:40,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 23:31:40,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 23:31:40,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 23:31:40,225 INFO L87 Difference]: Start difference. First operand has 3516 states, 2534 states have (on average 1.436069455406472) internal successors, (3639), 2605 states have internal predecessors, (3639), 848 states have call successors, (848), 136 states have call predecessors, (848), 136 states have return successors, (848), 839 states have call predecessors, (848), 848 states have call successors, (848) Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 23:31:40,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:31:40,857 INFO L93 Difference]: Finished difference Result 10492 states and 16246 transitions. [2022-07-22 23:31:40,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 23:31:40,859 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-07-22 23:31:40,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:31:40,956 INFO L225 Difference]: With dead ends: 10492 [2022-07-22 23:31:40,956 INFO L226 Difference]: Without dead ends: 6969 [2022-07-22 23:31:41,010 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 23:31:41,014 INFO L413 NwaCegarLoop]: 6969 mSDtfsCounter, 5154 mSDsluCounter, 5179 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5154 SdHoareTripleChecker+Valid, 12148 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 23:31:41,016 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5154 Valid, 12148 Invalid, 17 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 23:31:41,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6969 states. [2022-07-22 23:31:41,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6969 to 6955. [2022-07-22 23:31:41,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6955 states, 5006 states have (on average 1.3933280063923292) internal successors, (6975), 5140 states have internal predecessors, (6975), 1678 states have call successors, (1678), 271 states have call predecessors, (1678), 270 states have return successors, (1672), 1653 states have call predecessors, (1672), 1672 states have call successors, (1672) [2022-07-22 23:31:41,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6955 states to 6955 states and 10325 transitions. [2022-07-22 23:31:41,561 INFO L78 Accepts]: Start accepts. Automaton has 6955 states and 10325 transitions. Word has length 14 [2022-07-22 23:31:41,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 23:31:41,562 INFO L495 AbstractCegarLoop]: Abstraction has 6955 states and 10325 transitions. [2022-07-22 23:31:41,563 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 23:31:41,563 INFO L276 IsEmpty]: Start isEmpty. Operand 6955 states and 10325 transitions. [2022-07-22 23:31:41,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-07-22 23:31:41,570 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:31:41,571 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 23:31:41,571 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-22 23:31:41,571 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:31:41,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:31:41,572 INFO L85 PathProgramCache]: Analyzing trace with hash -687216903, now seen corresponding path program 1 times [2022-07-22 23:31:41,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 23:31:41,573 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591724148] [2022-07-22 23:31:41,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:31:41,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 23:31:41,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:31:41,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 23:31:41,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 23:31:41,932 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591724148] [2022-07-22 23:31:41,932 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1591724148] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 23:31:41,932 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 23:31:41,933 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 23:31:41,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55765699] [2022-07-22 23:31:41,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 23:31:41,934 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 23:31:41,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 23:31:41,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 23:31:41,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 23:31:41,939 INFO L87 Difference]: Start difference. First operand 6955 states and 10325 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 23:31:42,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:31:42,478 INFO L93 Difference]: Finished difference Result 20815 states and 30895 transitions. [2022-07-22 23:31:42,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 23:31:42,479 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-07-22 23:31:42,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:31:42,730 INFO L225 Difference]: With dead ends: 20815 [2022-07-22 23:31:42,731 INFO L226 Difference]: Without dead ends: 13863 [2022-07-22 23:31:42,773 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 23:31:42,774 INFO L413 NwaCegarLoop]: 6437 mSDtfsCounter, 5146 mSDsluCounter, 5173 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5146 SdHoareTripleChecker+Valid, 11610 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 23:31:42,775 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5146 Valid, 11610 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 23:31:42,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13863 states. [2022-07-22 23:31:43,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13863 to 13849. [2022-07-22 23:31:43,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13849 states, 9966 states have (on average 1.3924342765402369) internal successors, (13877), 10230 states have internal predecessors, (13877), 3342 states have call successors, (3342), 541 states have call predecessors, (3342), 540 states have return successors, (3336), 3297 states have call predecessors, (3336), 3336 states have call successors, (3336) [2022-07-22 23:31:43,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13849 states to 13849 states and 20555 transitions. [2022-07-22 23:31:43,541 INFO L78 Accepts]: Start accepts. Automaton has 13849 states and 20555 transitions. Word has length 16 [2022-07-22 23:31:43,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 23:31:43,542 INFO L495 AbstractCegarLoop]: Abstraction has 13849 states and 20555 transitions. [2022-07-22 23:31:43,542 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 23:31:43,543 INFO L276 IsEmpty]: Start isEmpty. Operand 13849 states and 20555 transitions. [2022-07-22 23:31:43,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-07-22 23:31:43,545 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:31:43,545 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 23:31:43,545 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-22 23:31:43,545 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:31:43,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:31:43,546 INFO L85 PathProgramCache]: Analyzing trace with hash 360574127, now seen corresponding path program 1 times [2022-07-22 23:31:43,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 23:31:43,546 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484369205] [2022-07-22 23:31:43,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:31:43,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 23:31:43,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:31:43,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 23:31:43,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 23:31:43,858 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484369205] [2022-07-22 23:31:43,859 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [484369205] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 23:31:43,859 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 23:31:43,859 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 23:31:43,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559960932] [2022-07-22 23:31:43,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 23:31:43,860 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 23:31:43,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 23:31:43,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 23:31:43,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 23:31:43,863 INFO L87 Difference]: Start difference. First operand 13849 states and 20555 transitions. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 23:31:44,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:31:44,930 INFO L93 Difference]: Finished difference Result 41395 states and 61442 transitions. [2022-07-22 23:31:44,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 23:31:44,930 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-07-22 23:31:44,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:31:45,212 INFO L225 Difference]: With dead ends: 41395 [2022-07-22 23:31:45,212 INFO L226 Difference]: Without dead ends: 27549 [2022-07-22 23:31:45,320 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 23:31:45,323 INFO L413 NwaCegarLoop]: 7623 mSDtfsCounter, 5144 mSDsluCounter, 5173 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5144 SdHoareTripleChecker+Valid, 12796 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 23:31:45,324 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5144 Valid, 12796 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 23:31:45,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27549 states. [2022-07-22 23:31:46,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27549 to 27535. [2022-07-22 23:31:46,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27535 states, 19807 states have (on average 1.3918311707982027) internal successors, (27568), 20330 states have internal predecessors, (27568), 6654 states have call successors, (6654), 1074 states have call predecessors, (6654), 1073 states have return successors, (6648), 6569 states have call predecessors, (6648), 6648 states have call successors, (6648) [2022-07-22 23:31:46,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27535 states to 27535 states and 40870 transitions. [2022-07-22 23:31:46,893 INFO L78 Accepts]: Start accepts. Automaton has 27535 states and 40870 transitions. Word has length 18 [2022-07-22 23:31:46,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 23:31:46,894 INFO L495 AbstractCegarLoop]: Abstraction has 27535 states and 40870 transitions. [2022-07-22 23:31:46,894 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 23:31:46,894 INFO L276 IsEmpty]: Start isEmpty. Operand 27535 states and 40870 transitions. [2022-07-22 23:31:46,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-07-22 23:31:46,900 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:31:46,900 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 23:31:46,900 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-22 23:31:46,900 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:31:46,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:31:46,901 INFO L85 PathProgramCache]: Analyzing trace with hash 230013637, now seen corresponding path program 1 times [2022-07-22 23:31:46,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 23:31:46,901 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770713162] [2022-07-22 23:31:46,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:31:46,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 23:31:47,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:31:47,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-22 23:31:47,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:31:47,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 23:31:47,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 23:31:47,277 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770713162] [2022-07-22 23:31:47,277 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [770713162] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 23:31:47,278 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 23:31:47,278 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 23:31:47,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752283727] [2022-07-22 23:31:47,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 23:31:47,279 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 23:31:47,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 23:31:47,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 23:31:47,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 23:31:47,280 INFO L87 Difference]: Start difference. First operand 27535 states and 40870 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-22 23:31:47,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:31:47,943 INFO L93 Difference]: Finished difference Result 27558 states and 40898 transitions. [2022-07-22 23:31:47,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 23:31:47,944 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 29 [2022-07-22 23:31:47,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:31:48,403 INFO L225 Difference]: With dead ends: 27558 [2022-07-22 23:31:48,403 INFO L226 Difference]: Without dead ends: 27547 [2022-07-22 23:31:48,418 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 23:31:48,425 INFO L413 NwaCegarLoop]: 5203 mSDtfsCounter, 5186 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5186 SdHoareTripleChecker+Valid, 5216 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 23:31:48,426 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5186 Valid, 5216 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 23:31:48,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27547 states. [2022-07-22 23:31:49,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27547 to 27536. [2022-07-22 23:31:49,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27536 states, 19808 states have (on average 1.3918113893376414) internal successors, (27569), 20331 states have internal predecessors, (27569), 6654 states have call successors, (6654), 1074 states have call predecessors, (6654), 1073 states have return successors, (6648), 6569 states have call predecessors, (6648), 6648 states have call successors, (6648) [2022-07-22 23:31:49,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27536 states to 27536 states and 40871 transitions. [2022-07-22 23:31:49,910 INFO L78 Accepts]: Start accepts. Automaton has 27536 states and 40871 transitions. Word has length 29 [2022-07-22 23:31:49,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 23:31:49,911 INFO L495 AbstractCegarLoop]: Abstraction has 27536 states and 40871 transitions. [2022-07-22 23:31:49,911 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-22 23:31:49,911 INFO L276 IsEmpty]: Start isEmpty. Operand 27536 states and 40871 transitions. [2022-07-22 23:31:49,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-07-22 23:31:49,916 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:31:49,916 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 23:31:49,916 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-22 23:31:49,916 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:31:49,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:31:49,917 INFO L85 PathProgramCache]: Analyzing trace with hash 287271939, now seen corresponding path program 1 times [2022-07-22 23:31:49,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 23:31:49,917 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102587745] [2022-07-22 23:31:49,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:31:49,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 23:31:50,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:31:50,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-22 23:31:50,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:31:50,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 23:31:50,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 23:31:50,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102587745] [2022-07-22 23:31:50,420 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2102587745] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 23:31:50,420 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 23:31:50,420 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 23:31:50,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432074073] [2022-07-22 23:31:50,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 23:31:50,421 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 23:31:50,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 23:31:50,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 23:31:50,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 23:31:50,422 INFO L87 Difference]: Start difference. First operand 27536 states and 40871 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-22 23:31:51,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:31:51,218 INFO L93 Difference]: Finished difference Result 27538 states and 40872 transitions. [2022-07-22 23:31:51,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 23:31:51,222 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 29 [2022-07-22 23:31:51,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:31:51,380 INFO L225 Difference]: With dead ends: 27538 [2022-07-22 23:31:51,380 INFO L226 Difference]: Without dead ends: 27535 [2022-07-22 23:31:51,395 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 23:31:51,396 INFO L413 NwaCegarLoop]: 5188 mSDtfsCounter, 5166 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5166 SdHoareTripleChecker+Valid, 5188 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 23:31:51,397 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5166 Valid, 5188 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 23:31:51,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27535 states. [2022-07-22 23:31:52,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27535 to 27535. [2022-07-22 23:31:52,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27535 states, 19808 states have (on average 1.3917609046849757) internal successors, (27568), 20330 states have internal predecessors, (27568), 6653 states have call successors, (6653), 1074 states have call predecessors, (6653), 1073 states have return successors, (6648), 6569 states have call predecessors, (6648), 6648 states have call successors, (6648) [2022-07-22 23:31:52,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27535 states to 27535 states and 40869 transitions. [2022-07-22 23:31:52,662 INFO L78 Accepts]: Start accepts. Automaton has 27535 states and 40869 transitions. Word has length 29 [2022-07-22 23:31:52,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 23:31:52,663 INFO L495 AbstractCegarLoop]: Abstraction has 27535 states and 40869 transitions. [2022-07-22 23:31:52,664 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-22 23:31:52,664 INFO L276 IsEmpty]: Start isEmpty. Operand 27535 states and 40869 transitions. [2022-07-22 23:31:52,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-07-22 23:31:52,667 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:31:52,667 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 23:31:52,667 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-22 23:31:52,668 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:31:52,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:31:52,668 INFO L85 PathProgramCache]: Analyzing trace with hash 314027652, now seen corresponding path program 1 times [2022-07-22 23:31:52,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 23:31:52,669 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122479371] [2022-07-22 23:31:52,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:31:52,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 23:31:52,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:31:53,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-22 23:31:53,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:31:53,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 23:31:53,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 23:31:53,111 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122479371] [2022-07-22 23:31:53,111 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2122479371] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 23:31:53,111 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 23:31:53,111 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 23:31:53,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735808510] [2022-07-22 23:31:53,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 23:31:53,112 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 23:31:53,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 23:31:53,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 23:31:53,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 23:31:53,113 INFO L87 Difference]: Start difference. First operand 27535 states and 40869 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-22 23:31:53,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:31:53,780 INFO L93 Difference]: Finished difference Result 27537 states and 40870 transitions. [2022-07-22 23:31:53,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 23:31:53,781 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 30 [2022-07-22 23:31:53,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:31:53,935 INFO L225 Difference]: With dead ends: 27537 [2022-07-22 23:31:53,935 INFO L226 Difference]: Without dead ends: 27534 [2022-07-22 23:31:53,959 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 23:31:53,960 INFO L413 NwaCegarLoop]: 5186 mSDtfsCounter, 5163 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5163 SdHoareTripleChecker+Valid, 5186 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 23:31:53,960 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5163 Valid, 5186 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 23:31:53,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27534 states. [2022-07-22 23:31:55,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27534 to 27534. [2022-07-22 23:31:55,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27534 states, 19808 states have (on average 1.3917104200323103) internal successors, (27567), 20329 states have internal predecessors, (27567), 6652 states have call successors, (6652), 1074 states have call predecessors, (6652), 1073 states have return successors, (6648), 6569 states have call predecessors, (6648), 6648 states have call successors, (6648) [2022-07-22 23:31:55,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27534 states to 27534 states and 40867 transitions. [2022-07-22 23:31:55,243 INFO L78 Accepts]: Start accepts. Automaton has 27534 states and 40867 transitions. Word has length 30 [2022-07-22 23:31:55,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 23:31:55,244 INFO L495 AbstractCegarLoop]: Abstraction has 27534 states and 40867 transitions. [2022-07-22 23:31:55,244 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-22 23:31:55,244 INFO L276 IsEmpty]: Start isEmpty. Operand 27534 states and 40867 transitions. [2022-07-22 23:31:55,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-07-22 23:31:55,251 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:31:55,251 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 23:31:55,251 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-22 23:31:55,251 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:31:55,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:31:55,252 INFO L85 PathProgramCache]: Analyzing trace with hash 1143459622, now seen corresponding path program 1 times [2022-07-22 23:31:55,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 23:31:55,252 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760038776] [2022-07-22 23:31:55,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:31:55,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 23:31:55,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:31:55,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-22 23:31:55,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:31:55,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 23:31:55,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 23:31:55,551 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760038776] [2022-07-22 23:31:55,551 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1760038776] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 23:31:55,551 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 23:31:55,551 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 23:31:55,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942815389] [2022-07-22 23:31:55,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 23:31:55,552 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 23:31:55,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 23:31:55,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 23:31:55,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 23:31:55,553 INFO L87 Difference]: Start difference. First operand 27534 states and 40867 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-22 23:31:56,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:31:56,854 INFO L93 Difference]: Finished difference Result 42791 states and 62688 transitions. [2022-07-22 23:31:56,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 23:31:56,855 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 31 [2022-07-22 23:31:56,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:31:57,127 INFO L225 Difference]: With dead ends: 42791 [2022-07-22 23:31:57,127 INFO L226 Difference]: Without dead ends: 42787 [2022-07-22 23:31:57,157 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 23:31:57,159 INFO L413 NwaCegarLoop]: 6167 mSDtfsCounter, 5126 mSDsluCounter, 3146 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5126 SdHoareTripleChecker+Valid, 9313 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 23:31:57,159 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5126 Valid, 9313 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 23:31:57,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42787 states. [2022-07-22 23:31:58,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42787 to 42785. [2022-07-22 23:31:58,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42785 states, 30651 states have (on average 1.3716355094450425) internal successors, (42042), 31429 states have internal predecessors, (42042), 10318 states have call successors, (10318), 1816 states have call predecessors, (10318), 1815 states have return successors, (10316), 10202 states have call predecessors, (10316), 10316 states have call successors, (10316) [2022-07-22 23:31:59,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42785 states to 42785 states and 62676 transitions. [2022-07-22 23:31:59,120 INFO L78 Accepts]: Start accepts. Automaton has 42785 states and 62676 transitions. Word has length 31 [2022-07-22 23:31:59,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 23:31:59,122 INFO L495 AbstractCegarLoop]: Abstraction has 42785 states and 62676 transitions. [2022-07-22 23:31:59,122 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-22 23:31:59,122 INFO L276 IsEmpty]: Start isEmpty. Operand 42785 states and 62676 transitions. [2022-07-22 23:31:59,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-07-22 23:31:59,127 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:31:59,127 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 23:31:59,127 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-22 23:31:59,127 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:31:59,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:31:59,128 INFO L85 PathProgramCache]: Analyzing trace with hash 1086051783, now seen corresponding path program 1 times [2022-07-22 23:31:59,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 23:31:59,128 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199874479] [2022-07-22 23:31:59,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:31:59,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 23:31:59,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:31:59,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-22 23:31:59,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:31:59,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 23:31:59,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 23:31:59,466 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199874479] [2022-07-22 23:31:59,466 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1199874479] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 23:31:59,467 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 23:31:59,467 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 23:31:59,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492871601] [2022-07-22 23:31:59,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 23:31:59,468 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 23:31:59,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 23:31:59,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 23:31:59,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 23:31:59,469 INFO L87 Difference]: Start difference. First operand 42785 states and 62676 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-22 23:32:00,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:32:00,623 INFO L93 Difference]: Finished difference Result 42787 states and 62677 transitions. [2022-07-22 23:32:00,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 23:32:00,631 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 32 [2022-07-22 23:32:00,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:32:00,959 INFO L225 Difference]: With dead ends: 42787 [2022-07-22 23:32:00,960 INFO L226 Difference]: Without dead ends: 42698 [2022-07-22 23:32:01,013 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 23:32:01,013 INFO L413 NwaCegarLoop]: 5181 mSDtfsCounter, 5155 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5155 SdHoareTripleChecker+Valid, 5181 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 23:32:01,014 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5155 Valid, 5181 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 23:32:01,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42698 states. [2022-07-22 23:32:02,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42698 to 42697. [2022-07-22 23:32:02,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42697 states, 30604 states have (on average 1.371683440073193) internal successors, (41979), 31374 states have internal predecessors, (41979), 10285 states have call successors, (10285), 1808 states have call predecessors, (10285), 1807 states have return successors, (10284), 10177 states have call predecessors, (10284), 10284 states have call successors, (10284) [2022-07-22 23:32:02,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42697 states to 42697 states and 62548 transitions. [2022-07-22 23:32:02,752 INFO L78 Accepts]: Start accepts. Automaton has 42697 states and 62548 transitions. Word has length 32 [2022-07-22 23:32:02,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 23:32:02,752 INFO L495 AbstractCegarLoop]: Abstraction has 42697 states and 62548 transitions. [2022-07-22 23:32:02,753 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-22 23:32:02,753 INFO L276 IsEmpty]: Start isEmpty. Operand 42697 states and 62548 transitions. [2022-07-22 23:32:02,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-07-22 23:32:02,767 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:32:02,767 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 23:32:02,767 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-22 23:32:02,768 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:32:02,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:32:02,768 INFO L85 PathProgramCache]: Analyzing trace with hash -481476166, now seen corresponding path program 1 times [2022-07-22 23:32:02,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 23:32:02,768 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544896579] [2022-07-22 23:32:02,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:32:02,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 23:32:02,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:32:03,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-22 23:32:03,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:32:03,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-22 23:32:03,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:32:03,072 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 23:32:03,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 23:32:03,072 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544896579] [2022-07-22 23:32:03,072 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1544896579] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 23:32:03,073 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 23:32:03,073 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-22 23:32:03,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029580820] [2022-07-22 23:32:03,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 23:32:03,074 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-22 23:32:03,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 23:32:03,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-22 23:32:03,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-22 23:32:03,075 INFO L87 Difference]: Start difference. First operand 42697 states and 62548 transitions. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-22 23:32:04,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:32:04,717 INFO L93 Difference]: Finished difference Result 85415 states and 125125 transitions. [2022-07-22 23:32:04,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-22 23:32:04,719 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 48 [2022-07-22 23:32:04,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:32:05,232 INFO L225 Difference]: With dead ends: 85415 [2022-07-22 23:32:05,233 INFO L226 Difference]: Without dead ends: 42697 [2022-07-22 23:32:05,421 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-22 23:32:05,424 INFO L413 NwaCegarLoop]: 5159 mSDtfsCounter, 3 mSDsluCounter, 10312 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 15471 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 23:32:05,424 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 15471 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 23:32:05,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42697 states. [2022-07-22 23:32:06,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42697 to 42697. [2022-07-22 23:32:06,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42697 states, 30604 states have (on average 1.3714220363351195) internal successors, (41971), 31374 states have internal predecessors, (41971), 10285 states have call successors, (10285), 1808 states have call predecessors, (10285), 1807 states have return successors, (10284), 10177 states have call predecessors, (10284), 10284 states have call successors, (10284) [2022-07-22 23:32:06,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42697 states to 42697 states and 62540 transitions. [2022-07-22 23:32:07,004 INFO L78 Accepts]: Start accepts. Automaton has 42697 states and 62540 transitions. Word has length 48 [2022-07-22 23:32:07,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 23:32:07,005 INFO L495 AbstractCegarLoop]: Abstraction has 42697 states and 62540 transitions. [2022-07-22 23:32:07,005 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-22 23:32:07,005 INFO L276 IsEmpty]: Start isEmpty. Operand 42697 states and 62540 transitions. [2022-07-22 23:32:07,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-07-22 23:32:07,027 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:32:07,027 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 23:32:07,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-22 23:32:07,028 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:32:07,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:32:07,028 INFO L85 PathProgramCache]: Analyzing trace with hash -766261442, now seen corresponding path program 1 times [2022-07-22 23:32:07,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 23:32:07,029 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637700663] [2022-07-22 23:32:07,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:32:07,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 23:32:07,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:32:07,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-22 23:32:07,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:32:07,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-22 23:32:07,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:32:07,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-22 23:32:07,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:32:07,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-22 23:32:07,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:32:07,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:32:07,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:32:07,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-22 23:32:07,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:32:07,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-07-22 23:32:07,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:32:07,412 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 23:32:07,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 23:32:07,413 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637700663] [2022-07-22 23:32:07,413 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [637700663] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 23:32:07,413 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 23:32:07,413 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-22 23:32:07,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973682224] [2022-07-22 23:32:07,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 23:32:07,415 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-22 23:32:07,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 23:32:07,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-22 23:32:07,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-22 23:32:07,416 INFO L87 Difference]: Start difference. First operand 42697 states and 62540 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-22 23:32:16,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:32:16,151 INFO L93 Difference]: Finished difference Result 115753 states and 171080 transitions. [2022-07-22 23:32:16,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-22 23:32:16,151 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 77 [2022-07-22 23:32:16,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:32:16,696 INFO L225 Difference]: With dead ends: 115753 [2022-07-22 23:32:16,696 INFO L226 Difference]: Without dead ends: 73059 [2022-07-22 23:32:16,870 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-22 23:32:16,871 INFO L413 NwaCegarLoop]: 9939 mSDtfsCounter, 6202 mSDsluCounter, 9361 mSDsCounter, 0 mSdLazyCounter, 3495 mSolverCounterSat, 1846 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7026 SdHoareTripleChecker+Valid, 19300 SdHoareTripleChecker+Invalid, 5341 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1846 IncrementalHoareTripleChecker+Valid, 3495 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-07-22 23:32:16,872 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7026 Valid, 19300 Invalid, 5341 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1846 Valid, 3495 Invalid, 0 Unknown, 0 Unchecked, 6.5s Time] [2022-07-22 23:32:16,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73059 states. [2022-07-22 23:32:19,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73059 to 62920. [2022-07-22 23:32:19,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62920 states, 45112 states have (on average 1.372007448129101) internal successors, (61894), 46248 states have internal predecessors, (61894), 15153 states have call successors, (15153), 2655 states have call predecessors, (15153), 2654 states have return successors, (15152), 14994 states have call predecessors, (15152), 15152 states have call successors, (15152) [2022-07-22 23:32:19,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62920 states to 62920 states and 92199 transitions. [2022-07-22 23:32:19,689 INFO L78 Accepts]: Start accepts. Automaton has 62920 states and 92199 transitions. Word has length 77 [2022-07-22 23:32:19,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 23:32:19,689 INFO L495 AbstractCegarLoop]: Abstraction has 62920 states and 92199 transitions. [2022-07-22 23:32:19,689 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-22 23:32:19,690 INFO L276 IsEmpty]: Start isEmpty. Operand 62920 states and 92199 transitions. [2022-07-22 23:32:19,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-07-22 23:32:19,710 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:32:19,710 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 23:32:19,710 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-22 23:32:19,711 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:32:19,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:32:19,711 INFO L85 PathProgramCache]: Analyzing trace with hash -465588126, now seen corresponding path program 1 times [2022-07-22 23:32:19,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 23:32:19,712 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64347323] [2022-07-22 23:32:19,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:32:19,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 23:32:19,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:32:19,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-22 23:32:19,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:32:19,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-22 23:32:19,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:32:19,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-22 23:32:19,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:32:19,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-22 23:32:19,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:32:19,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:32:19,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:32:19,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-22 23:32:20,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:32:20,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-22 23:32:20,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:32:20,014 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 23:32:20,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 23:32:20,015 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64347323] [2022-07-22 23:32:20,015 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [64347323] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 23:32:20,015 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 23:32:20,015 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-22 23:32:20,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937678074] [2022-07-22 23:32:20,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 23:32:20,016 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-22 23:32:20,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 23:32:20,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-22 23:32:20,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-22 23:32:20,017 INFO L87 Difference]: Start difference. First operand 62920 states and 92199 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-22 23:32:30,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:32:30,029 INFO L93 Difference]: Finished difference Result 169908 states and 251255 transitions. [2022-07-22 23:32:30,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-22 23:32:30,029 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 75 [2022-07-22 23:32:30,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:32:30,787 INFO L225 Difference]: With dead ends: 169908 [2022-07-22 23:32:30,787 INFO L226 Difference]: Without dead ends: 106991 [2022-07-22 23:32:31,282 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-22 23:32:31,282 INFO L413 NwaCegarLoop]: 10003 mSDtfsCounter, 6175 mSDsluCounter, 9389 mSDsCounter, 0 mSdLazyCounter, 3493 mSolverCounterSat, 1839 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6998 SdHoareTripleChecker+Valid, 19392 SdHoareTripleChecker+Invalid, 5332 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1839 IncrementalHoareTripleChecker+Valid, 3493 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2022-07-22 23:32:31,282 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6998 Valid, 19392 Invalid, 5332 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1839 Valid, 3493 Invalid, 0 Unknown, 0 Unchecked, 6.7s Time] [2022-07-22 23:32:31,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106991 states. [2022-07-22 23:32:34,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106991 to 92134. [2022-07-22 23:32:34,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92134 states, 66080 states have (on average 1.3728510895883776) internal successors, (90718), 67746 states have internal predecessors, (90718), 22185 states have call successors, (22185), 3869 states have call predecessors, (22185), 3868 states have return successors, (22184), 21952 states have call predecessors, (22184), 22184 states have call successors, (22184) [2022-07-22 23:32:35,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92134 states to 92134 states and 135087 transitions. [2022-07-22 23:32:35,304 INFO L78 Accepts]: Start accepts. Automaton has 92134 states and 135087 transitions. Word has length 75 [2022-07-22 23:32:35,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 23:32:35,306 INFO L495 AbstractCegarLoop]: Abstraction has 92134 states and 135087 transitions. [2022-07-22 23:32:35,306 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-22 23:32:35,306 INFO L276 IsEmpty]: Start isEmpty. Operand 92134 states and 135087 transitions. [2022-07-22 23:32:35,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-07-22 23:32:35,328 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:32:35,328 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 23:32:35,329 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-22 23:32:35,329 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:32:35,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:32:35,329 INFO L85 PathProgramCache]: Analyzing trace with hash -159959948, now seen corresponding path program 1 times [2022-07-22 23:32:35,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 23:32:35,330 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273089866] [2022-07-22 23:32:35,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:32:35,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 23:32:35,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:32:35,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-22 23:32:35,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:32:35,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-22 23:32:35,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:32:35,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-22 23:32:35,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:32:35,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-22 23:32:35,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:32:35,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:32:35,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:32:35,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-22 23:32:35,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:32:35,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-22 23:32:35,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:32:35,636 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 23:32:35,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 23:32:35,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273089866] [2022-07-22 23:32:35,637 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [273089866] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 23:32:35,637 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 23:32:35,637 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-22 23:32:35,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306688807] [2022-07-22 23:32:35,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 23:32:35,638 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-22 23:32:35,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 23:32:35,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-22 23:32:35,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-22 23:32:35,639 INFO L87 Difference]: Start difference. First operand 92134 states and 135087 transitions. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-22 23:32:45,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:32:45,808 INFO L93 Difference]: Finished difference Result 247430 states and 366180 transitions. [2022-07-22 23:32:45,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-22 23:32:45,809 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 79 [2022-07-22 23:32:45,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:32:46,955 INFO L225 Difference]: With dead ends: 247430 [2022-07-22 23:32:46,955 INFO L226 Difference]: Without dead ends: 155299 [2022-07-22 23:32:47,690 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-22 23:32:47,690 INFO L413 NwaCegarLoop]: 9926 mSDtfsCounter, 6174 mSDsluCounter, 9317 mSDsCounter, 0 mSdLazyCounter, 3496 mSolverCounterSat, 1847 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6993 SdHoareTripleChecker+Valid, 19243 SdHoareTripleChecker+Invalid, 5343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1847 IncrementalHoareTripleChecker+Valid, 3496 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-07-22 23:32:47,691 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6993 Valid, 19243 Invalid, 5343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1847 Valid, 3496 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2022-07-22 23:32:47,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155299 states. [2022-07-22 23:32:52,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155299 to 133715. [2022-07-22 23:32:52,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133715 states, 95943 states have (on average 1.374076274454624) internal successors, (131833), 98366 states have internal predecessors, (131833), 32195 states have call successors, (32195), 5577 states have call predecessors, (32195), 5576 states have return successors, (32194), 31856 states have call predecessors, (32194), 32194 states have call successors, (32194) [2022-07-22 23:32:53,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133715 states to 133715 states and 196222 transitions. [2022-07-22 23:32:53,379 INFO L78 Accepts]: Start accepts. Automaton has 133715 states and 196222 transitions. Word has length 79 [2022-07-22 23:32:53,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 23:32:53,380 INFO L495 AbstractCegarLoop]: Abstraction has 133715 states and 196222 transitions. [2022-07-22 23:32:53,380 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-22 23:32:53,380 INFO L276 IsEmpty]: Start isEmpty. Operand 133715 states and 196222 transitions. [2022-07-22 23:32:53,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-07-22 23:32:53,421 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:32:53,421 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 23:32:53,421 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-22 23:32:53,422 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:32:53,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:32:53,422 INFO L85 PathProgramCache]: Analyzing trace with hash -646528785, now seen corresponding path program 1 times [2022-07-22 23:32:53,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 23:32:53,423 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258799439] [2022-07-22 23:32:53,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:32:53,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 23:32:53,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:32:54,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-22 23:32:54,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:32:54,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-22 23:32:54,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:32:54,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-22 23:32:54,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:32:54,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-22 23:32:54,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:32:54,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:32:54,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:32:54,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-22 23:32:54,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:32:54,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-22 23:32:54,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:32:54,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:32:54,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:32:54,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:32:54,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:32:54,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:32:54,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:32:54,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:32:54,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:32:54,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-07-22 23:32:54,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:32:54,273 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-07-22 23:32:54,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 23:32:54,274 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258799439] [2022-07-22 23:32:54,274 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1258799439] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 23:32:54,274 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 23:32:54,274 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-22 23:32:54,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429938235] [2022-07-22 23:32:54,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 23:32:54,276 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-22 23:32:54,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 23:32:54,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-22 23:32:54,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-22 23:32:54,277 INFO L87 Difference]: Start difference. First operand 133715 states and 196222 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 3 states have internal predecessors, (80), 3 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12)