./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 ff03de63 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-dev-ff03de6 [2021-12-21 16:06:13,395 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-21 16:06:13,396 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-21 16:06:13,450 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-21 16:06:13,450 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-21 16:06:13,451 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-21 16:06:13,452 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-21 16:06:13,453 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-21 16:06:13,454 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-21 16:06:13,455 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-21 16:06:13,455 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-21 16:06:13,456 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-21 16:06:13,456 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-21 16:06:13,457 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-21 16:06:13,458 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-21 16:06:13,458 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-21 16:06:13,459 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-21 16:06:13,460 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-21 16:06:13,461 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-21 16:06:13,462 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-21 16:06:13,463 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-21 16:06:13,475 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-21 16:06:13,476 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-21 16:06:13,477 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-21 16:06:13,478 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-21 16:06:13,479 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-21 16:06:13,479 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-21 16:06:13,480 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-21 16:06:13,480 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-21 16:06:13,481 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-21 16:06:13,481 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-21 16:06:13,481 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-21 16:06:13,483 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-21 16:06:13,484 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-21 16:06:13,485 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-21 16:06:13,485 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-21 16:06:13,485 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-21 16:06:13,486 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-21 16:06:13,486 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-21 16:06:13,487 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-21 16:06:13,488 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-21 16:06:13,489 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-21 16:06:13,521 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-21 16:06:13,521 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-21 16:06:13,522 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-21 16:06:13,522 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-21 16:06:13,523 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-21 16:06:13,523 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-21 16:06:13,523 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-21 16:06:13,523 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-21 16:06:13,523 INFO L138 SettingsManager]: * Use SBE=true [2021-12-21 16:06:13,524 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-21 16:06:13,524 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-21 16:06:13,525 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-21 16:06:13,525 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-21 16:06:13,525 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-21 16:06:13,525 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-21 16:06:13,525 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-21 16:06:13,526 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-21 16:06:13,526 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-21 16:06:13,526 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-21 16:06:13,526 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-21 16:06:13,526 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-21 16:06:13,526 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 16:06:13,526 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-21 16:06:13,527 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-21 16:06:13,527 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-21 16:06:13,527 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-21 16:06:13,527 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-21 16:06:13,528 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-21 16:06:13,528 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-21 16:06:13,528 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-21 16:06:13,529 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-21 16:06:13,529 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0991342cd9e67cbadb964d86a1516812eb3aa45e84d4674c09b8e10a19f475c1 [2021-12-21 16:06:13,743 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-21 16:06:13,772 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-21 16:06:13,774 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-21 16:06:13,775 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-21 16:06:13,776 INFO L275 PluginConnector]: CDTParser initialized [2021-12-21 16:06:13,777 INFO L432 ainManager$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 [2021-12-21 16:06:13,831 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f7d922a6/4a9b2145bacb45cba6328e0fd60c975a/FLAGc00c56ac5 [2021-12-21 16:06:14,601 INFO L306 CDTParser]: Found 1 translation units. [2021-12-21 16:06:14,602 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 [2021-12-21 16:06:14,654 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f7d922a6/4a9b2145bacb45cba6328e0fd60c975a/FLAGc00c56ac5 [2021-12-21 16:06:14,678 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f7d922a6/4a9b2145bacb45cba6328e0fd60c975a [2021-12-21 16:06:14,680 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-21 16:06:14,682 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-21 16:06:14,684 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-21 16:06:14,684 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-21 16:06:14,687 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-21 16:06:14,687 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 04:06:14" (1/1) ... [2021-12-21 16:06:14,688 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f6f31e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:06:14, skipping insertion in model container [2021-12-21 16:06:14,688 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 04:06:14" (1/1) ... [2021-12-21 16:06:14,693 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-21 16:06:14,795 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-21 16:06:16,545 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] [2021-12-21 16:06:16,661 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 16:06:16,688 INFO L203 MainTranslator]: Completed pre-run [2021-12-21 16:06:16,977 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] [2021-12-21 16:06:16,985 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 16:06:17,042 INFO L208 MainTranslator]: Completed translation [2021-12-21 16:06:17,044 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:06:17 WrapperNode [2021-12-21 16:06:17,044 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-21 16:06:17,045 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-21 16:06:17,045 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-21 16:06:17,045 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-21 16:06:17,050 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:06:17" (1/1) ... [2021-12-21 16:06:17,152 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:06:17" (1/1) ... [2021-12-21 16:06:17,342 INFO L137 Inliner]: procedures = 326, calls = 4469, calls flagged for inlining = 131, calls inlined = 121, statements flattened = 8803 [2021-12-21 16:06:17,343 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-21 16:06:17,344 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-21 16:06:17,344 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-21 16:06:17,344 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-21 16:06:17,350 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:06:17" (1/1) ... [2021-12-21 16:06:17,350 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:06:17" (1/1) ... [2021-12-21 16:06:17,399 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:06:17" (1/1) ... [2021-12-21 16:06:17,399 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:06:17" (1/1) ... [2021-12-21 16:06:17,522 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:06:17" (1/1) ... [2021-12-21 16:06:17,602 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:06:17" (1/1) ... [2021-12-21 16:06:17,635 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:06:17" (1/1) ... [2021-12-21 16:06:17,668 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-21 16:06:17,669 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-21 16:06:17,670 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-21 16:06:17,670 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-21 16:06:17,671 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:06:17" (1/1) ... [2021-12-21 16:06:17,676 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 16:06:17,684 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 16:06:17,710 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) [2021-12-21 16:06:17,744 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 [2021-12-21 16:06:17,767 INFO L130 BoogieDeclarations]: Found specification of procedure hcd_to_ohci [2021-12-21 16:06:17,768 INFO L138 BoogieDeclarations]: Found implementation of procedure hcd_to_ohci [2021-12-21 16:06:17,768 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-12-21 16:06:17,768 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-12-21 16:06:17,768 INFO L130 BoogieDeclarations]: Found specification of procedure platform_driver_unregister [2021-12-21 16:06:17,768 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_driver_unregister [2021-12-21 16:06:17,768 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unregister_driver [2021-12-21 16:06:17,768 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unregister_driver [2021-12-21 16:06:17,768 INFO L130 BoogieDeclarations]: Found specification of procedure start_ed_unlink [2021-12-21 16:06:17,768 INFO L138 BoogieDeclarations]: Found implementation of procedure start_ed_unlink [2021-12-21 16:06:17,769 INFO L130 BoogieDeclarations]: Found specification of procedure roothub_status [2021-12-21 16:06:17,769 INFO L138 BoogieDeclarations]: Found implementation of procedure roothub_status [2021-12-21 16:06:17,769 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le32 [2021-12-21 16:06:17,769 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le32 [2021-12-21 16:06:17,769 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_platform_suspend [2021-12-21 16:06:17,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_platform_suspend [2021-12-21 16:06:17,769 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_alloc [2021-12-21 16:06:17,769 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_alloc [2021-12-21 16:06:17,769 INFO L130 BoogieDeclarations]: Found specification of procedure show_list [2021-12-21 16:06:17,770 INFO L138 BoogieDeclarations]: Found implementation of procedure show_list [2021-12-21 16:06:17,770 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_platform_probe [2021-12-21 16:06:17,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_platform_probe [2021-12-21 16:06:17,770 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-21 16:06:17,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-21 16:06:17,770 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_maxp [2021-12-21 16:06:17,770 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_maxp [2021-12-21 16:06:17,770 INFO L130 BoogieDeclarations]: Found specification of procedure hc32_to_cpup [2021-12-21 16:06:17,770 INFO L138 BoogieDeclarations]: Found implementation of procedure hc32_to_cpup [2021-12-21 16:06:17,771 INFO L130 BoogieDeclarations]: Found specification of procedure hcfs2string [2021-12-21 16:06:17,771 INFO L138 BoogieDeclarations]: Found implementation of procedure hcfs2string [2021-12-21 16:06:17,771 INFO L130 BoogieDeclarations]: Found specification of procedure quirk_zfmicro [2021-12-21 16:06:17,771 INFO L138 BoogieDeclarations]: Found implementation of procedure quirk_zfmicro [2021-12-21 16:06:17,771 INFO L130 BoogieDeclarations]: Found specification of procedure usb_disabled [2021-12-21 16:06:17,771 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_disabled [2021-12-21 16:06:17,771 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_hub_status_data [2021-12-21 16:06:17,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_hub_status_data [2021-12-21 16:06:17,771 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_pci_reset [2021-12-21 16:06:17,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_pci_reset [2021-12-21 16:06:17,772 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_shutdown [2021-12-21 16:06:17,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_shutdown [2021-12-21 16:06:17,772 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-21 16:06:17,772 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-21 16:06:17,772 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-21 16:06:17,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-21 16:06:17,773 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_dump_intr_mask [2021-12-21 16:06:17,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_dump_intr_mask [2021-12-21 16:06:17,773 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_buffer [2021-12-21 16:06:17,773 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_buffer [2021-12-21 16:06:17,773 INFO L130 BoogieDeclarations]: Found specification of procedure _ohci_writel [2021-12-21 16:06:17,773 INFO L138 BoogieDeclarations]: Found implementation of procedure _ohci_writel [2021-12-21 16:06:17,774 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-12-21 16:06:17,774 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-12-21 16:06:17,774 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-21 16:06:17,774 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-21 16:06:17,774 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_hwPSWp [2021-12-21 16:06:17,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_hwPSWp [2021-12-21 16:06:17,775 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_platform_resume [2021-12-21 16:06:17,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_platform_resume [2021-12-21 16:06:17,775 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_suspend [2021-12-21 16:06:17,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_suspend [2021-12-21 16:06:17,776 INFO L130 BoogieDeclarations]: Found specification of procedure debug_output [2021-12-21 16:06:17,776 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_output [2021-12-21 16:06:17,776 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2021-12-21 16:06:17,776 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2021-12-21 16:06:17,776 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-21 16:06:17,777 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-21 16:06:17,777 INFO L130 BoogieDeclarations]: Found specification of procedure ed_schedule [2021-12-21 16:06:17,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ed_schedule [2021-12-21 16:06:17,777 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_hcd_init [2021-12-21 16:06:17,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_hcd_init [2021-12-21 16:06:17,777 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_dump_roothub [2021-12-21 16:06:17,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_dump_roothub [2021-12-21 16:06:17,778 INFO L130 BoogieDeclarations]: Found specification of procedure round_jiffies [2021-12-21 16:06:17,778 INFO L138 BoogieDeclarations]: Found implementation of procedure round_jiffies [2021-12-21 16:06:17,778 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2021-12-21 16:06:17,778 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2021-12-21 16:06:17,778 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-21 16:06:17,778 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_stop [2021-12-21 16:06:17,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_stop [2021-12-21 16:06:17,778 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-12-21 16:06:17,779 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-12-21 16:06:17,779 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-21 16:06:17,779 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_create [2021-12-21 16:06:17,779 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_create [2021-12-21 16:06:17,779 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_pci_remove [2021-12-21 16:06:17,779 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_pci_remove [2021-12-21 16:06:17,779 INFO L130 BoogieDeclarations]: Found specification of procedure check_ed [2021-12-21 16:06:17,779 INFO L138 BoogieDeclarations]: Found implementation of procedure check_ed [2021-12-21 16:06:17,779 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_restart [2021-12-21 16:06:17,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_restart [2021-12-21 16:06:17,780 INFO L130 BoogieDeclarations]: Found specification of procedure quirk_nec [2021-12-21 16:06:17,780 INFO L138 BoogieDeclarations]: Found implementation of procedure quirk_nec [2021-12-21 16:06:17,780 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-21 16:06:17,780 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-21 16:06:17,781 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_destroy [2021-12-21 16:06:17,781 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_destroy [2021-12-21 16:06:17,781 INFO L130 BoogieDeclarations]: Found specification of procedure td_free [2021-12-21 16:06:17,781 INFO L138 BoogieDeclarations]: Found implementation of procedure td_free [2021-12-21 16:06:17,781 INFO L130 BoogieDeclarations]: Found specification of procedure broken_suspend [2021-12-21 16:06:17,782 INFO L138 BoogieDeclarations]: Found implementation of procedure broken_suspend [2021-12-21 16:06:17,782 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-21 16:06:17,782 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_rh_resume [2021-12-21 16:06:17,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_rh_resume [2021-12-21 16:06:17,782 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_platform_shutdown [2021-12-21 16:06:17,782 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_platform_shutdown [2021-12-21 16:06:17,783 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-21 16:06:17,783 INFO L130 BoogieDeclarations]: Found specification of procedure roothub_portstatus [2021-12-21 16:06:17,783 INFO L138 BoogieDeclarations]: Found implementation of procedure roothub_portstatus [2021-12-21 16:06:17,783 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_word [2021-12-21 16:06:17,783 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_word [2021-12-21 16:06:17,783 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hc_died [2021-12-21 16:06:17,783 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hc_died [2021-12-21 16:06:17,784 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_platform_remove [2021-12-21 16:06:17,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_platform_remove [2021-12-21 16:06:17,784 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_remove [2021-12-21 16:06:17,784 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_remove [2021-12-21 16:06:17,784 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2021-12-21 16:06:17,785 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2021-12-21 16:06:17,785 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_create_dir [2021-12-21 16:06:17,787 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_create_dir [2021-12-21 16:06:17,787 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-12-21 16:06:17,787 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-12-21 16:06:17,787 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-12-21 16:06:17,788 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-12-21 16:06:17,789 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-12-21 16:06:17,789 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-12-21 16:06:17,789 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_resume [2021-12-21 16:06:17,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_resume [2021-12-21 16:06:17,793 INFO L130 BoogieDeclarations]: Found specification of procedure ed_free [2021-12-21 16:06:17,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ed_free [2021-12-21 16:06:17,793 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-12-21 16:06:17,794 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-12-21 16:06:17,794 INFO L130 BoogieDeclarations]: Found specification of procedure usb_put_hcd [2021-12-21 16:06:17,794 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_put_hcd [2021-12-21 16:06:17,794 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_platform_start [2021-12-21 16:06:17,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_platform_start [2021-12-21 16:06:17,794 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_dump [2021-12-21 16:06:17,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_dump [2021-12-21 16:06:17,794 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_frame_no [2021-12-21 16:06:17,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_frame_no [2021-12-21 16:06:17,794 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-12-21 16:06:17,795 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-12-21 16:06:17,795 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2021-12-21 16:06:17,795 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2021-12-21 16:06:17,795 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2021-12-21 16:06:17,795 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2021-12-21 16:06:17,795 INFO L130 BoogieDeclarations]: Found specification of procedure sb800_prefetch [2021-12-21 16:06:17,795 INFO L138 BoogieDeclarations]: Found implementation of procedure sb800_prefetch [2021-12-21 16:06:17,795 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_hub_control [2021-12-21 16:06:17,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_hub_control [2021-12-21 16:06:17,795 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_unlink_urb_from_ep [2021-12-21 16:06:17,796 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_unlink_urb_from_ep [2021-12-21 16:06:17,796 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-21 16:06:17,796 INFO L130 BoogieDeclarations]: Found specification of procedure finish_urb [2021-12-21 16:06:17,796 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_urb [2021-12-21 16:06:17,796 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_rh_suspend [2021-12-21 16:06:17,796 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_rh_suspend [2021-12-21 16:06:17,796 INFO L130 BoogieDeclarations]: Found specification of procedure roothub_a [2021-12-21 16:06:17,796 INFO L138 BoogieDeclarations]: Found implementation of procedure roothub_a [2021-12-21 16:06:17,796 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_irq [2021-12-21 16:06:17,796 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_irq [2021-12-21 16:06:17,796 INFO L130 BoogieDeclarations]: Found specification of procedure rh_state_string [2021-12-21 16:06:17,797 INFO L138 BoogieDeclarations]: Found implementation of procedure rh_state_string [2021-12-21 16:06:17,797 INFO L130 BoogieDeclarations]: Found specification of procedure roothub_b [2021-12-21 16:06:17,797 INFO L138 BoogieDeclarations]: Found implementation of procedure roothub_b [2021-12-21 16:06:17,797 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_urb_enqueue [2021-12-21 16:06:17,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_urb_enqueue [2021-12-21 16:06:17,797 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_start_port_reset [2021-12-21 16:06:17,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_start_port_reset [2021-12-21 16:06:17,797 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_to_hcd [2021-12-21 16:06:17,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_to_hcd [2021-12-21 16:06:17,797 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_pci_start [2021-12-21 16:06:17,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_pci_start [2021-12-21 16:06:17,798 INFO L130 BoogieDeclarations]: Found specification of procedure td_alloc [2021-12-21 16:06:17,798 INFO L138 BoogieDeclarations]: Found implementation of procedure td_alloc [2021-12-21 16:06:17,798 INFO L130 BoogieDeclarations]: Found specification of procedure find_head [2021-12-21 16:06:17,798 INFO L138 BoogieDeclarations]: Found implementation of procedure find_head [2021-12-21 16:06:17,798 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-21 16:06:17,798 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-21 16:06:17,798 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_run [2021-12-21 16:06:17,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_run [2021-12-21 16:06:17,798 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_create_file [2021-12-21 16:06:17,798 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_create_file [2021-12-21 16:06:17,799 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_endpoint_disable [2021-12-21 16:06:17,799 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_endpoint_disable [2021-12-21 16:06:17,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-21 16:06:17,799 INFO L130 BoogieDeclarations]: Found specification of procedure takeback_td [2021-12-21 16:06:17,799 INFO L138 BoogieDeclarations]: Found implementation of procedure takeback_td [2021-12-21 16:06:17,799 INFO L130 BoogieDeclarations]: Found specification of procedure quirk_amdprefetch [2021-12-21 16:06:17,799 INFO L138 BoogieDeclarations]: Found implementation of procedure quirk_amdprefetch [2021-12-21 16:06:17,799 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2021-12-21 16:06:17,799 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2021-12-21 16:06:17,799 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-21 16:06:17,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-21 16:06:17,800 INFO L130 BoogieDeclarations]: Found specification of procedure _ohci_readl [2021-12-21 16:06:17,800 INFO L138 BoogieDeclarations]: Found implementation of procedure _ohci_readl [2021-12-21 16:06:17,800 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-21 16:06:17,800 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dev_put [2021-12-21 16:06:17,800 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dev_put [2021-12-21 16:06:17,800 INFO L130 BoogieDeclarations]: Found specification of procedure dl_done_list [2021-12-21 16:06:17,800 INFO L138 BoogieDeclarations]: Found implementation of procedure dl_done_list [2021-12-21 16:06:17,800 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_poll_rh_status [2021-12-21 16:06:17,800 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_poll_rh_status [2021-12-21 16:06:17,801 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2021-12-21 16:06:17,801 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2021-12-21 16:06:17,801 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-21 16:06:17,801 INFO L130 BoogieDeclarations]: Found specification of procedure periodic_reinit [2021-12-21 16:06:17,801 INFO L138 BoogieDeclarations]: Found implementation of procedure periodic_reinit [2021-12-21 16:06:17,801 INFO L130 BoogieDeclarations]: Found specification of procedure __le32_to_cpup [2021-12-21 16:06:17,801 INFO L138 BoogieDeclarations]: Found implementation of procedure __le32_to_cpup [2021-12-21 16:06:17,801 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-12-21 16:06:17,801 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-12-21 16:06:17,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-21 16:06:17,801 INFO L130 BoogieDeclarations]: Found specification of procedure td_done [2021-12-21 16:06:17,802 INFO L138 BoogieDeclarations]: Found implementation of procedure td_done [2021-12-21 16:06:17,802 INFO L130 BoogieDeclarations]: Found specification of procedure td_fill [2021-12-21 16:06:17,802 INFO L138 BoogieDeclarations]: Found implementation of procedure td_fill [2021-12-21 16:06:17,802 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_urb_dequeue [2021-12-21 16:06:17,802 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_urb_dequeue [2021-12-21 16:06:17,802 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-21 16:06:17,802 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-21 16:06:17,802 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_init [2021-12-21 16:06:17,802 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_init [2021-12-21 16:06:17,802 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2021-12-21 16:06:17,802 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2021-12-21 16:06:17,803 INFO L130 BoogieDeclarations]: Found specification of procedure cpu_to_hc16 [2021-12-21 16:06:17,803 INFO L138 BoogieDeclarations]: Found implementation of procedure cpu_to_hc16 [2021-12-21 16:06:17,803 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-12-21 16:06:17,803 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-12-21 16:06:17,803 INFO L130 BoogieDeclarations]: Found specification of procedure quirk_amdiso [2021-12-21 16:06:17,803 INFO L138 BoogieDeclarations]: Found implementation of procedure quirk_amdiso [2021-12-21 16:06:17,803 INFO L130 BoogieDeclarations]: Found specification of procedure default_llseek [2021-12-21 16:06:17,803 INFO L138 BoogieDeclarations]: Found implementation of procedure default_llseek [2021-12-21 16:06:17,803 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-12-21 16:06:17,803 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-12-21 16:06:17,804 INFO L130 BoogieDeclarations]: Found specification of procedure ed_deschedule [2021-12-21 16:06:17,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ed_deschedule [2021-12-21 16:06:17,804 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_resume_root_hub [2021-12-21 16:06:17,804 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_resume_root_hub [2021-12-21 16:06:17,804 INFO L130 BoogieDeclarations]: Found specification of procedure urb_free_priv [2021-12-21 16:06:17,804 INFO L138 BoogieDeclarations]: Found implementation of procedure urb_free_priv [2021-12-21 16:06:17,804 INFO L130 BoogieDeclarations]: Found specification of procedure finish_unlinks [2021-12-21 16:06:17,804 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_unlinks [2021-12-21 16:06:17,804 INFO L130 BoogieDeclarations]: Found specification of procedure hc32_to_cpu [2021-12-21 16:06:17,804 INFO L138 BoogieDeclarations]: Found implementation of procedure hc32_to_cpu [2021-12-21 16:06:17,805 INFO L130 BoogieDeclarations]: Found specification of procedure platform_set_drvdata [2021-12-21 16:06:17,808 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_set_drvdata [2021-12-21 16:06:17,808 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_dump_status [2021-12-21 16:06:17,808 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_dump_status [2021-12-21 16:06:17,808 INFO L130 BoogieDeclarations]: Found specification of procedure maybe_print_eds [2021-12-21 16:06:17,808 INFO L138 BoogieDeclarations]: Found implementation of procedure maybe_print_eds [2021-12-21 16:06:17,808 INFO L130 BoogieDeclarations]: Found specification of procedure debug_close [2021-12-21 16:06:17,808 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_close [2021-12-21 16:06:17,809 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_get_frame [2021-12-21 16:06:17,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_get_frame [2021-12-21 16:06:17,810 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_debug_buffer [2021-12-21 16:06:17,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_debug_buffer [2021-12-21 16:06:17,810 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-21 16:06:17,811 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-21 16:06:17,811 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2021-12-21 16:06:17,811 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2021-12-21 16:06:17,811 INFO L130 BoogieDeclarations]: Found specification of procedure cpu_to_hc32 [2021-12-21 16:06:17,812 INFO L138 BoogieDeclarations]: Found implementation of procedure cpu_to_hc32 [2021-12-21 16:06:17,812 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-12-21 16:06:17,812 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-12-21 16:06:17,812 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_usb_reset [2021-12-21 16:06:17,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_usb_reset [2021-12-21 16:06:17,812 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_bus_resume [2021-12-21 16:06:17,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_bus_resume [2021-12-21 16:06:17,815 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2021-12-21 16:06:17,815 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2021-12-21 16:06:17,815 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-12-21 16:06:17,815 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-12-21 16:06:17,815 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_bus_suspend [2021-12-21 16:06:17,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_bus_suspend [2021-12-21 16:06:17,815 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_platform_reset [2021-12-21 16:06:17,816 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_platform_reset [2021-12-21 16:06:17,816 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_pci_shutdown [2021-12-21 16:06:17,816 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_pci_shutdown [2021-12-21 16:06:17,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-21 16:06:17,816 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-21 16:06:17,816 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-21 16:06:17,816 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_free [2021-12-21 16:06:17,816 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_free [2021-12-21 16:06:18,707 INFO L234 CfgBuilder]: Building ICFG [2021-12-21 16:06:18,711 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-21 16:06:23,918 INFO L275 CfgBuilder]: Performing block encoding [2021-12-21 16:06:23,940 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-21 16:06:23,940 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-12-21 16:06:23,944 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 04:06:23 BoogieIcfgContainer [2021-12-21 16:06:23,944 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-21 16:06:23,945 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-21 16:06:23,945 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-21 16:06:23,947 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-21 16:06:23,948 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 04:06:14" (1/3) ... [2021-12-21 16:06:23,948 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@950f8be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 04:06:23, skipping insertion in model container [2021-12-21 16:06:23,948 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:06:17" (2/3) ... [2021-12-21 16:06:23,949 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@950f8be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 04:06:23, skipping insertion in model container [2021-12-21 16:06:23,949 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 04:06:23" (3/3) ... [2021-12-21 16:06:23,950 INFO L111 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--usb--host--ohci-hcd.ko-main.cil.out.i [2021-12-21 16:06:23,953 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-21 16:06:23,953 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-21 16:06:24,063 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-21 16:06:24,067 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-12-21 16:06:24,068 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-21 16:06:24,115 INFO L276 IsEmpty]: Start isEmpty. Operand has 3313 states, 2331 states have (on average 1.3951093951093951) internal successors, (3252), 2402 states have internal predecessors, (3252), 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) [2021-12-21 16:06:24,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-12-21 16:06:24,119 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:06:24,120 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 16:06:24,121 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:06:24,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:06:24,127 INFO L85 PathProgramCache]: Analyzing trace with hash -825410595, now seen corresponding path program 1 times [2021-12-21 16:06:24,133 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 16:06:24,133 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944988900] [2021-12-21 16:06:24,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:06:24,134 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 16:06:24,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:06:24,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 16:06:24,646 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 16:06:24,646 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944988900] [2021-12-21 16:06:24,646 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1944988900] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:06:24,646 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 16:06:24,646 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-21 16:06:24,648 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037155622] [2021-12-21 16:06:24,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:06:24,651 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-21 16:06:24,651 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 16:06:24,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-21 16:06:24,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 16:06:24,681 INFO L87 Difference]: Start difference. First operand has 3313 states, 2331 states have (on average 1.3951093951093951) internal successors, (3252), 2402 states have internal predecessors, (3252), 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) [2021-12-21 16:06:25,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 16:06:25,032 INFO L93 Difference]: Finished difference Result 9883 states and 15013 transitions. [2021-12-21 16:06:25,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-21 16:06:25,034 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 [2021-12-21 16:06:25,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 16:06:25,082 INFO L225 Difference]: With dead ends: 9883 [2021-12-21 16:06:25,082 INFO L226 Difference]: Without dead ends: 6563 [2021-12-21 16:06:25,113 INFO L932 BasicCegarLoop]: 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 [2021-12-21 16:06:25,115 INFO L933 BasicCegarLoop]: 7168 mSDtfsCounter, 4872 mSDsluCounter, 4897 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4872 SdHoareTripleChecker+Valid, 12065 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 [2021-12-21 16:06:25,116 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4872 Valid, 12065 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-21 16:06:25,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6563 states. [2021-12-21 16:06:25,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6563 to 6549. [2021-12-21 16:06:25,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6549 states, 4600 states have (on average 1.393695652173913) internal successors, (6411), 4734 states have internal predecessors, (6411), 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) [2021-12-21 16:06:25,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6549 states to 6549 states and 9761 transitions. [2021-12-21 16:06:25,423 INFO L78 Accepts]: Start accepts. Automaton has 6549 states and 9761 transitions. Word has length 14 [2021-12-21 16:06:25,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 16:06:25,424 INFO L470 AbstractCegarLoop]: Abstraction has 6549 states and 9761 transitions. [2021-12-21 16:06:25,424 INFO L471 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) [2021-12-21 16:06:25,425 INFO L276 IsEmpty]: Start isEmpty. Operand 6549 states and 9761 transitions. [2021-12-21 16:06:25,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-12-21 16:06:25,428 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:06:25,428 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 16:06:25,428 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-21 16:06:25,429 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:06:25,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:06:25,430 INFO L85 PathProgramCache]: Analyzing trace with hash 1327585593, now seen corresponding path program 1 times [2021-12-21 16:06:25,430 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 16:06:25,431 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901410740] [2021-12-21 16:06:25,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:06:25,431 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 16:06:25,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:06:25,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 16:06:25,661 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 16:06:25,662 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901410740] [2021-12-21 16:06:25,662 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1901410740] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:06:25,662 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 16:06:25,662 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-21 16:06:25,662 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038106410] [2021-12-21 16:06:25,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:06:25,663 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-21 16:06:25,663 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 16:06:25,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-21 16:06:25,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 16:06:25,664 INFO L87 Difference]: Start difference. First operand 6549 states and 9761 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) [2021-12-21 16:06:26,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 16:06:26,094 INFO L93 Difference]: Finished difference Result 19597 states and 29203 transitions. [2021-12-21 16:06:26,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-21 16:06:26,094 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 [2021-12-21 16:06:26,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 16:06:26,174 INFO L225 Difference]: With dead ends: 19597 [2021-12-21 16:06:26,174 INFO L226 Difference]: Without dead ends: 13051 [2021-12-21 16:06:26,207 INFO L932 BasicCegarLoop]: 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 [2021-12-21 16:06:26,208 INFO L933 BasicCegarLoop]: 6326 mSDtfsCounter, 4864 mSDsluCounter, 4891 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4864 SdHoareTripleChecker+Valid, 11217 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-21 16:06:26,208 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4864 Valid, 11217 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-21 16:06:26,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13051 states. [2021-12-21 16:06:26,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13051 to 13037. [2021-12-21 16:06:26,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13037 states, 9154 states have (on average 1.392724492025344) internal successors, (12749), 9418 states have internal predecessors, (12749), 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) [2021-12-21 16:06:26,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13037 states to 13037 states and 19427 transitions. [2021-12-21 16:06:26,938 INFO L78 Accepts]: Start accepts. Automaton has 13037 states and 19427 transitions. Word has length 16 [2021-12-21 16:06:26,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 16:06:26,938 INFO L470 AbstractCegarLoop]: Abstraction has 13037 states and 19427 transitions. [2021-12-21 16:06:26,939 INFO L471 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) [2021-12-21 16:06:26,939 INFO L276 IsEmpty]: Start isEmpty. Operand 13037 states and 19427 transitions. [2021-12-21 16:06:26,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-12-21 16:06:26,943 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:06:26,943 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 16:06:26,943 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-21 16:06:26,944 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:06:26,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:06:26,944 INFO L85 PathProgramCache]: Analyzing trace with hash -269818897, now seen corresponding path program 1 times [2021-12-21 16:06:26,944 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 16:06:26,945 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943853879] [2021-12-21 16:06:26,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:06:26,945 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 16:06:27,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:06:27,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 16:06:27,171 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 16:06:27,172 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943853879] [2021-12-21 16:06:27,173 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [943853879] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:06:27,173 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 16:06:27,173 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-21 16:06:27,173 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738664488] [2021-12-21 16:06:27,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:06:27,174 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-21 16:06:27,174 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 16:06:27,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-21 16:06:27,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 16:06:27,175 INFO L87 Difference]: Start difference. First operand 13037 states and 19427 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) [2021-12-21 16:06:27,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 16:06:27,849 INFO L93 Difference]: Finished difference Result 38959 states and 58058 transitions. [2021-12-21 16:06:27,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-21 16:06:27,849 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 [2021-12-21 16:06:27,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 16:06:28,051 INFO L225 Difference]: With dead ends: 38959 [2021-12-21 16:06:28,052 INFO L226 Difference]: Without dead ends: 25925 [2021-12-21 16:06:28,145 INFO L932 BasicCegarLoop]: 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 [2021-12-21 16:06:28,147 INFO L933 BasicCegarLoop]: 6747 mSDtfsCounter, 4862 mSDsluCounter, 4891 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4862 SdHoareTripleChecker+Valid, 11638 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 [2021-12-21 16:06:28,148 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4862 Valid, 11638 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-21 16:06:28,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25925 states. [2021-12-21 16:06:29,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25925 to 25911. [2021-12-21 16:06:29,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25911 states, 18183 states have (on average 1.3920695154814937) internal successors, (25312), 18706 states have internal predecessors, (25312), 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) [2021-12-21 16:06:29,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25911 states to 25911 states and 38614 transitions. [2021-12-21 16:06:29,423 INFO L78 Accepts]: Start accepts. Automaton has 25911 states and 38614 transitions. Word has length 18 [2021-12-21 16:06:29,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 16:06:29,424 INFO L470 AbstractCegarLoop]: Abstraction has 25911 states and 38614 transitions. [2021-12-21 16:06:29,424 INFO L471 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) [2021-12-21 16:06:29,424 INFO L276 IsEmpty]: Start isEmpty. Operand 25911 states and 38614 transitions. [2021-12-21 16:06:29,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-12-21 16:06:29,429 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:06:29,429 INFO L514 BasicCegarLoop]: 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] [2021-12-21 16:06:29,429 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-21 16:06:29,429 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:06:29,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:06:29,431 INFO L85 PathProgramCache]: Analyzing trace with hash 1935095309, now seen corresponding path program 1 times [2021-12-21 16:06:29,431 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 16:06:29,431 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361184135] [2021-12-21 16:06:29,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:06:29,431 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 16:06:29,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:06:29,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-21 16:06:29,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:06:29,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 16:06:29,672 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 16:06:29,673 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361184135] [2021-12-21 16:06:29,673 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [361184135] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:06:29,673 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 16:06:29,673 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-21 16:06:29,673 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516077132] [2021-12-21 16:06:29,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:06:29,676 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-21 16:06:29,676 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 16:06:29,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-21 16:06:29,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-21 16:06:29,677 INFO L87 Difference]: Start difference. First operand 25911 states and 38614 transitions. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 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) [2021-12-21 16:06:30,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 16:06:30,818 INFO L93 Difference]: Finished difference Result 51854 states and 77278 transitions. [2021-12-21 16:06:30,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-21 16:06:30,819 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 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 [2021-12-21 16:06:30,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 16:06:30,991 INFO L225 Difference]: With dead ends: 51854 [2021-12-21 16:06:30,991 INFO L226 Difference]: Without dead ends: 25946 [2021-12-21 16:06:31,096 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-21 16:06:31,101 INFO L933 BasicCegarLoop]: 4906 mSDtfsCounter, 22 mSDsluCounter, 9807 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 14713 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-21 16:06:31,102 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 14713 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-21 16:06:31,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25946 states. [2021-12-21 16:06:31,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25946 to 25914. [2021-12-21 16:06:31,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25914 states, 18186 states have (on average 1.392004838887056) internal successors, (25315), 18709 states have internal predecessors, (25315), 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) [2021-12-21 16:06:32,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25914 states to 25914 states and 38617 transitions. [2021-12-21 16:06:32,125 INFO L78 Accepts]: Start accepts. Automaton has 25914 states and 38617 transitions. Word has length 29 [2021-12-21 16:06:32,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 16:06:32,126 INFO L470 AbstractCegarLoop]: Abstraction has 25914 states and 38617 transitions. [2021-12-21 16:06:32,126 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 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) [2021-12-21 16:06:32,126 INFO L276 IsEmpty]: Start isEmpty. Operand 25914 states and 38617 transitions. [2021-12-21 16:06:32,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-12-21 16:06:32,129 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:06:32,129 INFO L514 BasicCegarLoop]: 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] [2021-12-21 16:06:32,130 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-21 16:06:32,130 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:06:32,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:06:32,130 INFO L85 PathProgramCache]: Analyzing trace with hash 1992353611, now seen corresponding path program 1 times [2021-12-21 16:06:32,130 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 16:06:32,131 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760521848] [2021-12-21 16:06:32,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:06:32,131 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 16:06:32,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:06:32,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-21 16:06:32,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:06:32,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 16:06:32,302 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 16:06:32,303 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760521848] [2021-12-21 16:06:32,303 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1760521848] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:06:32,303 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 16:06:32,303 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-21 16:06:32,303 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609976476] [2021-12-21 16:06:32,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:06:32,304 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-21 16:06:32,304 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 16:06:32,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-21 16:06:32,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 16:06:32,305 INFO L87 Difference]: Start difference. First operand 25914 states and 38617 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) [2021-12-21 16:06:32,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 16:06:32,832 INFO L93 Difference]: Finished difference Result 25916 states and 38618 transitions. [2021-12-21 16:06:32,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-21 16:06:32,833 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 [2021-12-21 16:06:32,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 16:06:32,968 INFO L225 Difference]: With dead ends: 25916 [2021-12-21 16:06:32,968 INFO L226 Difference]: Without dead ends: 25913 [2021-12-21 16:06:32,990 INFO L932 BasicCegarLoop]: 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 [2021-12-21 16:06:32,990 INFO L933 BasicCegarLoop]: 4906 mSDtfsCounter, 4884 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4884 SdHoareTripleChecker+Valid, 4906 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 [2021-12-21 16:06:32,991 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4884 Valid, 4906 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-21 16:06:33,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25913 states. [2021-12-21 16:06:33,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25913 to 25913. [2021-12-21 16:06:33,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25913 states, 18186 states have (on average 1.391949851534147) internal successors, (25314), 18708 states have internal predecessors, (25314), 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) [2021-12-21 16:06:33,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25913 states to 25913 states and 38615 transitions. [2021-12-21 16:06:33,814 INFO L78 Accepts]: Start accepts. Automaton has 25913 states and 38615 transitions. Word has length 29 [2021-12-21 16:06:33,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 16:06:33,814 INFO L470 AbstractCegarLoop]: Abstraction has 25913 states and 38615 transitions. [2021-12-21 16:06:33,814 INFO L471 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) [2021-12-21 16:06:33,815 INFO L276 IsEmpty]: Start isEmpty. Operand 25913 states and 38615 transitions. [2021-12-21 16:06:33,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-12-21 16:06:33,817 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:06:33,817 INFO L514 BasicCegarLoop]: 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] [2021-12-21 16:06:33,817 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-21 16:06:33,817 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:06:33,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:06:33,818 INFO L85 PathProgramCache]: Analyzing trace with hash 1631933668, now seen corresponding path program 1 times [2021-12-21 16:06:33,818 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 16:06:33,818 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638453682] [2021-12-21 16:06:33,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:06:33,818 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 16:06:33,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:06:33,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-21 16:06:33,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:06:33,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 16:06:33,991 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 16:06:33,992 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638453682] [2021-12-21 16:06:33,992 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [638453682] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:06:33,992 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 16:06:33,992 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-21 16:06:33,992 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116116603] [2021-12-21 16:06:33,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:06:33,992 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-21 16:06:33,993 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 16:06:33,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-21 16:06:33,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 16:06:33,993 INFO L87 Difference]: Start difference. First operand 25913 states and 38615 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) [2021-12-21 16:06:34,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 16:06:34,461 INFO L93 Difference]: Finished difference Result 25915 states and 38616 transitions. [2021-12-21 16:06:34,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-21 16:06:34,462 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 [2021-12-21 16:06:34,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 16:06:34,713 INFO L225 Difference]: With dead ends: 25915 [2021-12-21 16:06:34,713 INFO L226 Difference]: Without dead ends: 25912 [2021-12-21 16:06:34,724 INFO L932 BasicCegarLoop]: 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 [2021-12-21 16:06:34,725 INFO L933 BasicCegarLoop]: 4904 mSDtfsCounter, 4881 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4881 SdHoareTripleChecker+Valid, 4904 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 [2021-12-21 16:06:34,726 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4881 Valid, 4904 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-21 16:06:34,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25912 states. [2021-12-21 16:06:35,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25912 to 25912. [2021-12-21 16:06:35,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25912 states, 18186 states have (on average 1.3918948641812383) internal successors, (25313), 18707 states have internal predecessors, (25313), 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) [2021-12-21 16:06:35,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25912 states to 25912 states and 38613 transitions. [2021-12-21 16:06:35,589 INFO L78 Accepts]: Start accepts. Automaton has 25912 states and 38613 transitions. Word has length 30 [2021-12-21 16:06:35,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 16:06:35,590 INFO L470 AbstractCegarLoop]: Abstraction has 25912 states and 38613 transitions. [2021-12-21 16:06:35,590 INFO L471 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) [2021-12-21 16:06:35,590 INFO L276 IsEmpty]: Start isEmpty. Operand 25912 states and 38613 transitions. [2021-12-21 16:06:35,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-12-21 16:06:35,594 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:06:35,594 INFO L514 BasicCegarLoop]: 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] [2021-12-21 16:06:35,594 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-21 16:06:35,594 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:06:35,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:06:35,595 INFO L85 PathProgramCache]: Analyzing trace with hash -951145106, now seen corresponding path program 1 times [2021-12-21 16:06:35,595 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 16:06:35,595 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840088396] [2021-12-21 16:06:35,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:06:35,595 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 16:06:35,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:06:35,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-21 16:06:35,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:06:35,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 16:06:35,764 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 16:06:35,764 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840088396] [2021-12-21 16:06:35,764 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [840088396] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:06:35,764 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 16:06:35,764 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-21 16:06:35,765 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925581615] [2021-12-21 16:06:35,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:06:35,765 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-21 16:06:35,765 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 16:06:35,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-21 16:06:35,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 16:06:35,766 INFO L87 Difference]: Start difference. First operand 25912 states and 38613 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) [2021-12-21 16:06:36,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 16:06:36,465 INFO L93 Difference]: Finished difference Result 40287 states and 59265 transitions. [2021-12-21 16:06:36,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-21 16:06:36,466 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 [2021-12-21 16:06:36,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 16:06:36,745 INFO L225 Difference]: With dead ends: 40287 [2021-12-21 16:06:36,745 INFO L226 Difference]: Without dead ends: 40283 [2021-12-21 16:06:36,762 INFO L932 BasicCegarLoop]: 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 [2021-12-21 16:06:36,763 INFO L933 BasicCegarLoop]: 5455 mSDtfsCounter, 4844 mSDsluCounter, 2979 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4844 SdHoareTripleChecker+Valid, 8434 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 [2021-12-21 16:06:36,763 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4844 Valid, 8434 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-21 16:06:36,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40283 states. [2021-12-21 16:06:38,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40283 to 40281. [2021-12-21 16:06:38,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40281 states, 28147 states have (on average 1.3720467545386719) internal successors, (38619), 28925 states have internal predecessors, (38619), 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) [2021-12-21 16:06:38,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40281 states to 40281 states and 59253 transitions. [2021-12-21 16:06:38,286 INFO L78 Accepts]: Start accepts. Automaton has 40281 states and 59253 transitions. Word has length 31 [2021-12-21 16:06:38,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 16:06:38,287 INFO L470 AbstractCegarLoop]: Abstraction has 40281 states and 59253 transitions. [2021-12-21 16:06:38,287 INFO L471 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) [2021-12-21 16:06:38,287 INFO L276 IsEmpty]: Start isEmpty. Operand 40281 states and 59253 transitions. [2021-12-21 16:06:38,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-12-21 16:06:38,290 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:06:38,290 INFO L514 BasicCegarLoop]: 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] [2021-12-21 16:06:38,290 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-21 16:06:38,290 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:06:38,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:06:38,290 INFO L85 PathProgramCache]: Analyzing trace with hash 577796391, now seen corresponding path program 1 times [2021-12-21 16:06:38,291 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 16:06:38,291 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343628619] [2021-12-21 16:06:38,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:06:38,291 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 16:06:38,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:06:38,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-21 16:06:38,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:06:38,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 16:06:38,481 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 16:06:38,481 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343628619] [2021-12-21 16:06:38,482 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1343628619] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:06:38,482 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 16:06:38,482 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-21 16:06:38,482 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208116597] [2021-12-21 16:06:38,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:06:38,482 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-21 16:06:38,483 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 16:06:38,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-21 16:06:38,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 16:06:38,483 INFO L87 Difference]: Start difference. First operand 40281 states and 59253 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) [2021-12-21 16:06:39,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 16:06:39,162 INFO L93 Difference]: Finished difference Result 40283 states and 59254 transitions. [2021-12-21 16:06:39,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-21 16:06:39,167 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 [2021-12-21 16:06:39,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 16:06:39,372 INFO L225 Difference]: With dead ends: 40283 [2021-12-21 16:06:39,373 INFO L226 Difference]: Without dead ends: 40191 [2021-12-21 16:06:39,415 INFO L932 BasicCegarLoop]: 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 [2021-12-21 16:06:39,415 INFO L933 BasicCegarLoop]: 4899 mSDtfsCounter, 4873 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4873 SdHoareTripleChecker+Valid, 4899 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 [2021-12-21 16:06:39,416 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4873 Valid, 4899 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-21 16:06:39,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40191 states. [2021-12-21 16:06:40,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40191 to 40191. [2021-12-21 16:06:40,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40191 states, 28098 states have (on average 1.3718414122001565) internal successors, (38546), 28868 states have internal predecessors, (38546), 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) [2021-12-21 16:06:40,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40191 states to 40191 states and 59115 transitions. [2021-12-21 16:06:40,870 INFO L78 Accepts]: Start accepts. Automaton has 40191 states and 59115 transitions. Word has length 32 [2021-12-21 16:06:40,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 16:06:40,871 INFO L470 AbstractCegarLoop]: Abstraction has 40191 states and 59115 transitions. [2021-12-21 16:06:40,871 INFO L471 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) [2021-12-21 16:06:40,871 INFO L276 IsEmpty]: Start isEmpty. Operand 40191 states and 59115 transitions. [2021-12-21 16:06:40,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-12-21 16:06:40,887 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:06:40,887 INFO L514 BasicCegarLoop]: 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] [2021-12-21 16:06:40,888 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-21 16:06:40,888 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:06:40,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:06:40,888 INFO L85 PathProgramCache]: Analyzing trace with hash -1062285101, now seen corresponding path program 1 times [2021-12-21 16:06:40,888 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 16:06:40,889 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715304580] [2021-12-21 16:06:40,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:06:40,889 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 16:06:41,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:06:41,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-21 16:06:41,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:06:41,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-21 16:06:41,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:06:41,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-21 16:06:41,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:06:41,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-21 16:06:41,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:06:41,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:06:41,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:06:41,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-21 16:06:41,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:06:41,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-21 16:06:41,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:06:41,189 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 16:06:41,190 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 16:06:41,190 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715304580] [2021-12-21 16:06:41,190 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [715304580] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:06:41,190 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 16:06:41,191 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-21 16:06:41,191 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846897212] [2021-12-21 16:06:41,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:06:41,192 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-21 16:06:41,192 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 16:06:41,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-21 16:06:41,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-21 16:06:41,193 INFO L87 Difference]: Start difference. First operand 40191 states and 59115 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) [2021-12-21 16:06:47,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 16:06:47,791 INFO L93 Difference]: Finished difference Result 108621 states and 161333 transitions. [2021-12-21 16:06:47,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-21 16:06:47,791 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 [2021-12-21 16:06:47,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 16:06:48,218 INFO L225 Difference]: With dead ends: 108621 [2021-12-21 16:06:48,218 INFO L226 Difference]: Without dead ends: 68433 [2021-12-21 16:06:48,393 INFO L932 BasicCegarLoop]: 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 [2021-12-21 16:06:48,395 INFO L933 BasicCegarLoop]: 9300 mSDtfsCounter, 5748 mSDsluCounter, 9210 mSDsCounter, 0 mSdLazyCounter, 2857 mSolverCounterSat, 1860 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6569 SdHoareTripleChecker+Valid, 18510 SdHoareTripleChecker+Invalid, 4717 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1860 IncrementalHoareTripleChecker+Valid, 2857 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2021-12-21 16:06:48,395 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6569 Valid, 18510 Invalid, 4717 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1860 Valid, 2857 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2021-12-21 16:06:48,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68433 states. [2021-12-21 16:06:50,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68433 to 59224. [2021-12-21 16:06:50,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59224 states, 41416 states have (on average 1.372416457407765) internal successors, (56840), 42552 states have internal predecessors, (56840), 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) [2021-12-21 16:06:50,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59224 states to 59224 states and 87145 transitions. [2021-12-21 16:06:50,965 INFO L78 Accepts]: Start accepts. Automaton has 59224 states and 87145 transitions. Word has length 75 [2021-12-21 16:06:50,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 16:06:50,967 INFO L470 AbstractCegarLoop]: Abstraction has 59224 states and 87145 transitions. [2021-12-21 16:06:50,968 INFO L471 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) [2021-12-21 16:06:50,968 INFO L276 IsEmpty]: Start isEmpty. Operand 59224 states and 87145 transitions. [2021-12-21 16:06:50,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-12-21 16:06:50,984 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:06:50,984 INFO L514 BasicCegarLoop]: 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] [2021-12-21 16:06:50,984 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-21 16:06:50,985 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:06:50,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:06:50,985 INFO L85 PathProgramCache]: Analyzing trace with hash -1311107985, now seen corresponding path program 1 times [2021-12-21 16:06:50,985 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 16:06:50,985 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837015195] [2021-12-21 16:06:50,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:06:50,986 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 16:06:51,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:06:51,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-21 16:06:51,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:06:51,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-21 16:06:51,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:06:51,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-21 16:06:51,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:06:51,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-21 16:06:51,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:06:51,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:06:51,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:06:51,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-21 16:06:51,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:06:51,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-12-21 16:06:51,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:06:51,226 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 16:06:51,227 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 16:06:51,227 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1837015195] [2021-12-21 16:06:51,227 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1837015195] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:06:51,227 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 16:06:51,227 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-21 16:06:51,227 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156929341] [2021-12-21 16:06:51,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:06:51,228 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-21 16:06:51,228 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 16:06:51,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-21 16:06:51,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-21 16:06:51,229 INFO L87 Difference]: Start difference. First operand 59224 states and 87145 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) [2021-12-21 16:06:59,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 16:06:59,471 INFO L93 Difference]: Finished difference Result 159432 states and 236929 transitions. [2021-12-21 16:06:59,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-21 16:06:59,472 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 [2021-12-21 16:06:59,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 16:07:00,185 INFO L225 Difference]: With dead ends: 159432 [2021-12-21 16:07:00,185 INFO L226 Difference]: Without dead ends: 100211 [2021-12-21 16:07:00,434 INFO L932 BasicCegarLoop]: 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 [2021-12-21 16:07:00,434 INFO L933 BasicCegarLoop]: 9366 mSDtfsCounter, 5694 mSDsluCounter, 9222 mSDsCounter, 0 mSdLazyCounter, 2856 mSolverCounterSat, 1849 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6514 SdHoareTripleChecker+Valid, 18588 SdHoareTripleChecker+Invalid, 4705 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1849 IncrementalHoareTripleChecker+Valid, 2856 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2021-12-21 16:07:00,435 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6514 Valid, 18588 Invalid, 4705 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1849 Valid, 2856 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2021-12-21 16:07:00,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100211 states. [2021-12-21 16:07:03,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100211 to 86716. [2021-12-21 16:07:03,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86716 states, 60662 states have (on average 1.3732484916422143) internal successors, (83304), 62328 states have internal predecessors, (83304), 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) [2021-12-21 16:07:04,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86716 states to 86716 states and 127673 transitions. [2021-12-21 16:07:04,041 INFO L78 Accepts]: Start accepts. Automaton has 86716 states and 127673 transitions. Word has length 77 [2021-12-21 16:07:04,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 16:07:04,042 INFO L470 AbstractCegarLoop]: Abstraction has 86716 states and 127673 transitions. [2021-12-21 16:07:04,042 INFO L471 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) [2021-12-21 16:07:04,042 INFO L276 IsEmpty]: Start isEmpty. Operand 86716 states and 127673 transitions. [2021-12-21 16:07:04,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-12-21 16:07:04,054 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:07:04,055 INFO L514 BasicCegarLoop]: 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] [2021-12-21 16:07:04,055 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-21 16:07:04,055 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:07:04,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:07:04,055 INFO L85 PathProgramCache]: Analyzing trace with hash 1878818405, now seen corresponding path program 1 times [2021-12-21 16:07:04,056 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 16:07:04,056 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747311950] [2021-12-21 16:07:04,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:07:04,056 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 16:07:04,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:07:04,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-21 16:07:04,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:07:04,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-21 16:07:04,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:07:04,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-21 16:07:04,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:07:04,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-21 16:07:04,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:07:04,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:07:04,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:07:04,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-21 16:07:04,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:07:04,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-21 16:07:04,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:07:04,310 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 16:07:04,310 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 16:07:04,310 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747311950] [2021-12-21 16:07:04,310 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [747311950] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:07:04,311 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 16:07:04,311 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-21 16:07:04,311 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315985717] [2021-12-21 16:07:04,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:07:04,312 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-21 16:07:04,312 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 16:07:04,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-21 16:07:04,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-21 16:07:04,313 INFO L87 Difference]: Start difference. First operand 86716 states and 127673 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)