./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 c3fed411 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-tmp.no-commuhash-c3fed41 [2021-12-18 03:22:57,525 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-18 03:22:57,526 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-18 03:22:57,575 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-18 03:22:57,581 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-18 03:22:57,582 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-18 03:22:57,583 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-18 03:22:57,586 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-18 03:22:57,588 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-18 03:22:57,589 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-18 03:22:57,590 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-18 03:22:57,590 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-18 03:22:57,592 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-18 03:22:57,594 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-18 03:22:57,595 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-18 03:22:57,596 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-18 03:22:57,598 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-18 03:22:57,600 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-18 03:22:57,603 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-18 03:22:57,604 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-18 03:22:57,607 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-18 03:22:57,607 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-18 03:22:57,608 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-18 03:22:57,609 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-18 03:22:57,611 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-18 03:22:57,615 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-18 03:22:57,615 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-18 03:22:57,616 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-18 03:22:57,616 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-18 03:22:57,617 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-18 03:22:57,617 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-18 03:22:57,618 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-18 03:22:57,619 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-18 03:22:57,620 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-18 03:22:57,621 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-18 03:22:57,621 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-18 03:22:57,622 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-18 03:22:57,622 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-18 03:22:57,622 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-18 03:22:57,623 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-18 03:22:57,623 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-18 03:22:57,624 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-18 03:22:57,641 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-18 03:22:57,641 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-18 03:22:57,641 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-18 03:22:57,641 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-18 03:22:57,642 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-18 03:22:57,642 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-18 03:22:57,642 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-18 03:22:57,643 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-18 03:22:57,643 INFO L138 SettingsManager]: * Use SBE=true [2021-12-18 03:22:57,643 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-18 03:22:57,644 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-18 03:22:57,644 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-18 03:22:57,644 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-18 03:22:57,644 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-18 03:22:57,644 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-18 03:22:57,645 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-18 03:22:57,645 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-18 03:22:57,645 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-18 03:22:57,645 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-18 03:22:57,645 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-18 03:22:57,645 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-18 03:22:57,645 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-18 03:22:57,646 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-18 03:22:57,646 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-18 03:22:57,646 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-18 03:22:57,646 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-18 03:22:57,646 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-18 03:22:57,647 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-18 03:22:57,647 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-18 03:22:57,647 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-18 03:22:57,648 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-18 03:22:57,648 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0991342cd9e67cbadb964d86a1516812eb3aa45e84d4674c09b8e10a19f475c1 [2021-12-18 03:22:57,838 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-18 03:22:57,859 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-18 03:22:57,861 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-18 03:22:57,865 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-18 03:22:57,866 INFO L275 PluginConnector]: CDTParser initialized [2021-12-18 03:22:57,867 INFO L432 ainManager$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 [2021-12-18 03:22:57,918 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6a598dcc3/68c4395d708f44f6bb39e1d75d51606f/FLAG46454c6ea [2021-12-18 03:22:58,534 INFO L306 CDTParser]: Found 1 translation units. [2021-12-18 03:22:58,534 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 [2021-12-18 03:22:58,568 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6a598dcc3/68c4395d708f44f6bb39e1d75d51606f/FLAG46454c6ea [2021-12-18 03:22:58,651 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6a598dcc3/68c4395d708f44f6bb39e1d75d51606f [2021-12-18 03:22:58,654 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-18 03:22:58,655 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-18 03:22:58,656 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-18 03:22:58,656 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-18 03:22:58,659 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-18 03:22:58,660 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 03:22:58" (1/1) ... [2021-12-18 03:22:58,661 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56d0e417 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:22:58, skipping insertion in model container [2021-12-18 03:22:58,661 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 03:22:58" (1/1) ... [2021-12-18 03:22:58,665 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-18 03:22:58,746 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-18 03:23:00,233 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] [2021-12-18 03:23:00,311 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-18 03:23:00,355 INFO L203 MainTranslator]: Completed pre-run [2021-12-18 03:23:00,653 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] [2021-12-18 03:23:00,663 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-18 03:23:00,741 INFO L208 MainTranslator]: Completed translation [2021-12-18 03:23:00,742 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:23:00 WrapperNode [2021-12-18 03:23:00,742 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-18 03:23:00,743 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-18 03:23:00,743 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-18 03:23:00,743 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-18 03:23:00,748 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:23:00" (1/1) ... [2021-12-18 03:23:00,866 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:23:00" (1/1) ... [2021-12-18 03:23:01,078 INFO L137 Inliner]: procedures = 326, calls = 4469, calls flagged for inlining = 131, calls inlined = 121, statements flattened = 8803 [2021-12-18 03:23:01,080 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-18 03:23:01,081 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-18 03:23:01,081 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-18 03:23:01,081 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-18 03:23:01,101 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:23:00" (1/1) ... [2021-12-18 03:23:01,104 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:23:00" (1/1) ... [2021-12-18 03:23:01,143 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:23:00" (1/1) ... [2021-12-18 03:23:01,146 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:23:00" (1/1) ... [2021-12-18 03:23:01,324 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:23:00" (1/1) ... [2021-12-18 03:23:01,376 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:23:00" (1/1) ... [2021-12-18 03:23:01,432 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:23:00" (1/1) ... [2021-12-18 03:23:01,504 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-18 03:23:01,505 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-18 03:23:01,505 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-18 03:23:01,505 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-18 03:23:01,520 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:23:00" (1/1) ... [2021-12-18 03:23:01,526 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-18 03:23:01,535 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 03:23:01,544 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) [2021-12-18 03:23:01,574 INFO L130 BoogieDeclarations]: Found specification of procedure hcd_to_ohci [2021-12-18 03:23:01,566 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 [2021-12-18 03:23:01,576 INFO L138 BoogieDeclarations]: Found implementation of procedure hcd_to_ohci [2021-12-18 03:23:01,579 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-12-18 03:23:01,579 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-12-18 03:23:01,579 INFO L130 BoogieDeclarations]: Found specification of procedure platform_driver_unregister [2021-12-18 03:23:01,579 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_driver_unregister [2021-12-18 03:23:01,579 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unregister_driver [2021-12-18 03:23:01,580 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unregister_driver [2021-12-18 03:23:01,580 INFO L130 BoogieDeclarations]: Found specification of procedure start_ed_unlink [2021-12-18 03:23:01,580 INFO L138 BoogieDeclarations]: Found implementation of procedure start_ed_unlink [2021-12-18 03:23:01,580 INFO L130 BoogieDeclarations]: Found specification of procedure roothub_status [2021-12-18 03:23:01,580 INFO L138 BoogieDeclarations]: Found implementation of procedure roothub_status [2021-12-18 03:23:01,580 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le32 [2021-12-18 03:23:01,580 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le32 [2021-12-18 03:23:01,580 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_platform_suspend [2021-12-18 03:23:01,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_platform_suspend [2021-12-18 03:23:01,581 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_alloc [2021-12-18 03:23:01,581 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_alloc [2021-12-18 03:23:01,581 INFO L130 BoogieDeclarations]: Found specification of procedure show_list [2021-12-18 03:23:01,581 INFO L138 BoogieDeclarations]: Found implementation of procedure show_list [2021-12-18 03:23:01,581 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_platform_probe [2021-12-18 03:23:01,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_platform_probe [2021-12-18 03:23:01,581 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-18 03:23:01,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-18 03:23:01,581 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_maxp [2021-12-18 03:23:01,582 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_maxp [2021-12-18 03:23:01,582 INFO L130 BoogieDeclarations]: Found specification of procedure hc32_to_cpup [2021-12-18 03:23:01,582 INFO L138 BoogieDeclarations]: Found implementation of procedure hc32_to_cpup [2021-12-18 03:23:01,582 INFO L130 BoogieDeclarations]: Found specification of procedure hcfs2string [2021-12-18 03:23:01,582 INFO L138 BoogieDeclarations]: Found implementation of procedure hcfs2string [2021-12-18 03:23:01,583 INFO L130 BoogieDeclarations]: Found specification of procedure quirk_zfmicro [2021-12-18 03:23:01,583 INFO L138 BoogieDeclarations]: Found implementation of procedure quirk_zfmicro [2021-12-18 03:23:01,583 INFO L130 BoogieDeclarations]: Found specification of procedure usb_disabled [2021-12-18 03:23:01,583 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_disabled [2021-12-18 03:23:01,583 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_hub_status_data [2021-12-18 03:23:01,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_hub_status_data [2021-12-18 03:23:01,583 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_pci_reset [2021-12-18 03:23:01,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_pci_reset [2021-12-18 03:23:01,584 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_shutdown [2021-12-18 03:23:01,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_shutdown [2021-12-18 03:23:01,584 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-18 03:23:01,584 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-18 03:23:01,584 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-18 03:23:01,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-18 03:23:01,584 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_dump_intr_mask [2021-12-18 03:23:01,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_dump_intr_mask [2021-12-18 03:23:01,585 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_buffer [2021-12-18 03:23:01,585 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_buffer [2021-12-18 03:23:01,585 INFO L130 BoogieDeclarations]: Found specification of procedure _ohci_writel [2021-12-18 03:23:01,585 INFO L138 BoogieDeclarations]: Found implementation of procedure _ohci_writel [2021-12-18 03:23:01,585 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-12-18 03:23:01,585 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-12-18 03:23:01,585 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-18 03:23:01,586 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-18 03:23:01,586 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_hwPSWp [2021-12-18 03:23:01,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_hwPSWp [2021-12-18 03:23:01,586 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_platform_resume [2021-12-18 03:23:01,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_platform_resume [2021-12-18 03:23:01,587 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_suspend [2021-12-18 03:23:01,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_suspend [2021-12-18 03:23:01,587 INFO L130 BoogieDeclarations]: Found specification of procedure debug_output [2021-12-18 03:23:01,588 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_output [2021-12-18 03:23:01,588 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2021-12-18 03:23:01,588 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2021-12-18 03:23:01,588 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-18 03:23:01,588 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-18 03:23:01,588 INFO L130 BoogieDeclarations]: Found specification of procedure ed_schedule [2021-12-18 03:23:01,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ed_schedule [2021-12-18 03:23:01,588 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_hcd_init [2021-12-18 03:23:01,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_hcd_init [2021-12-18 03:23:01,589 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_dump_roothub [2021-12-18 03:23:01,589 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_dump_roothub [2021-12-18 03:23:01,589 INFO L130 BoogieDeclarations]: Found specification of procedure round_jiffies [2021-12-18 03:23:01,589 INFO L138 BoogieDeclarations]: Found implementation of procedure round_jiffies [2021-12-18 03:23:01,589 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2021-12-18 03:23:01,589 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2021-12-18 03:23:01,589 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-18 03:23:01,589 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_stop [2021-12-18 03:23:01,589 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_stop [2021-12-18 03:23:01,590 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-12-18 03:23:01,590 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-12-18 03:23:01,590 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-18 03:23:01,590 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_create [2021-12-18 03:23:01,590 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_create [2021-12-18 03:23:01,590 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_pci_remove [2021-12-18 03:23:01,590 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_pci_remove [2021-12-18 03:23:01,590 INFO L130 BoogieDeclarations]: Found specification of procedure check_ed [2021-12-18 03:23:01,590 INFO L138 BoogieDeclarations]: Found implementation of procedure check_ed [2021-12-18 03:23:01,591 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_restart [2021-12-18 03:23:01,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_restart [2021-12-18 03:23:01,591 INFO L130 BoogieDeclarations]: Found specification of procedure quirk_nec [2021-12-18 03:23:01,591 INFO L138 BoogieDeclarations]: Found implementation of procedure quirk_nec [2021-12-18 03:23:01,591 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-18 03:23:01,591 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-18 03:23:01,592 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_destroy [2021-12-18 03:23:01,592 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_destroy [2021-12-18 03:23:01,592 INFO L130 BoogieDeclarations]: Found specification of procedure td_free [2021-12-18 03:23:01,592 INFO L138 BoogieDeclarations]: Found implementation of procedure td_free [2021-12-18 03:23:01,592 INFO L130 BoogieDeclarations]: Found specification of procedure broken_suspend [2021-12-18 03:23:01,593 INFO L138 BoogieDeclarations]: Found implementation of procedure broken_suspend [2021-12-18 03:23:01,593 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-18 03:23:01,593 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_rh_resume [2021-12-18 03:23:01,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_rh_resume [2021-12-18 03:23:01,594 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_platform_shutdown [2021-12-18 03:23:01,594 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_platform_shutdown [2021-12-18 03:23:01,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-18 03:23:01,594 INFO L130 BoogieDeclarations]: Found specification of procedure roothub_portstatus [2021-12-18 03:23:01,594 INFO L138 BoogieDeclarations]: Found implementation of procedure roothub_portstatus [2021-12-18 03:23:01,594 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_word [2021-12-18 03:23:01,594 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_word [2021-12-18 03:23:01,594 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hc_died [2021-12-18 03:23:01,594 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hc_died [2021-12-18 03:23:01,595 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_platform_remove [2021-12-18 03:23:01,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_platform_remove [2021-12-18 03:23:01,595 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_remove [2021-12-18 03:23:01,595 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_remove [2021-12-18 03:23:01,595 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2021-12-18 03:23:01,596 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2021-12-18 03:23:01,596 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_create_dir [2021-12-18 03:23:01,598 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_create_dir [2021-12-18 03:23:01,598 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-12-18 03:23:01,598 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-12-18 03:23:01,598 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-12-18 03:23:01,599 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-12-18 03:23:01,600 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-12-18 03:23:01,600 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-12-18 03:23:01,600 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_resume [2021-12-18 03:23:01,600 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_resume [2021-12-18 03:23:01,604 INFO L130 BoogieDeclarations]: Found specification of procedure ed_free [2021-12-18 03:23:01,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ed_free [2021-12-18 03:23:01,604 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-12-18 03:23:01,604 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-12-18 03:23:01,604 INFO L130 BoogieDeclarations]: Found specification of procedure usb_put_hcd [2021-12-18 03:23:01,604 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_put_hcd [2021-12-18 03:23:01,604 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_platform_start [2021-12-18 03:23:01,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_platform_start [2021-12-18 03:23:01,605 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_dump [2021-12-18 03:23:01,605 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_dump [2021-12-18 03:23:01,605 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_frame_no [2021-12-18 03:23:01,605 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_frame_no [2021-12-18 03:23:01,605 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-12-18 03:23:01,605 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-12-18 03:23:01,605 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2021-12-18 03:23:01,605 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2021-12-18 03:23:01,605 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2021-12-18 03:23:01,605 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2021-12-18 03:23:01,606 INFO L130 BoogieDeclarations]: Found specification of procedure sb800_prefetch [2021-12-18 03:23:01,606 INFO L138 BoogieDeclarations]: Found implementation of procedure sb800_prefetch [2021-12-18 03:23:01,606 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_hub_control [2021-12-18 03:23:01,606 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_hub_control [2021-12-18 03:23:01,606 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_unlink_urb_from_ep [2021-12-18 03:23:01,606 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_unlink_urb_from_ep [2021-12-18 03:23:01,606 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-18 03:23:01,606 INFO L130 BoogieDeclarations]: Found specification of procedure finish_urb [2021-12-18 03:23:01,606 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_urb [2021-12-18 03:23:01,607 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_rh_suspend [2021-12-18 03:23:01,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_rh_suspend [2021-12-18 03:23:01,607 INFO L130 BoogieDeclarations]: Found specification of procedure roothub_a [2021-12-18 03:23:01,607 INFO L138 BoogieDeclarations]: Found implementation of procedure roothub_a [2021-12-18 03:23:01,607 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_irq [2021-12-18 03:23:01,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_irq [2021-12-18 03:23:01,607 INFO L130 BoogieDeclarations]: Found specification of procedure rh_state_string [2021-12-18 03:23:01,608 INFO L138 BoogieDeclarations]: Found implementation of procedure rh_state_string [2021-12-18 03:23:01,608 INFO L130 BoogieDeclarations]: Found specification of procedure roothub_b [2021-12-18 03:23:01,608 INFO L138 BoogieDeclarations]: Found implementation of procedure roothub_b [2021-12-18 03:23:01,608 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_urb_enqueue [2021-12-18 03:23:01,608 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_urb_enqueue [2021-12-18 03:23:01,608 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_start_port_reset [2021-12-18 03:23:01,608 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_start_port_reset [2021-12-18 03:23:01,608 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_to_hcd [2021-12-18 03:23:01,608 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_to_hcd [2021-12-18 03:23:01,608 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_pci_start [2021-12-18 03:23:01,609 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_pci_start [2021-12-18 03:23:01,609 INFO L130 BoogieDeclarations]: Found specification of procedure td_alloc [2021-12-18 03:23:01,609 INFO L138 BoogieDeclarations]: Found implementation of procedure td_alloc [2021-12-18 03:23:01,609 INFO L130 BoogieDeclarations]: Found specification of procedure find_head [2021-12-18 03:23:01,609 INFO L138 BoogieDeclarations]: Found implementation of procedure find_head [2021-12-18 03:23:01,609 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-18 03:23:01,609 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-18 03:23:01,609 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_run [2021-12-18 03:23:01,609 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_run [2021-12-18 03:23:01,609 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_create_file [2021-12-18 03:23:01,609 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_create_file [2021-12-18 03:23:01,610 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_endpoint_disable [2021-12-18 03:23:01,610 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_endpoint_disable [2021-12-18 03:23:01,610 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-18 03:23:01,610 INFO L130 BoogieDeclarations]: Found specification of procedure takeback_td [2021-12-18 03:23:01,610 INFO L138 BoogieDeclarations]: Found implementation of procedure takeback_td [2021-12-18 03:23:01,610 INFO L130 BoogieDeclarations]: Found specification of procedure quirk_amdprefetch [2021-12-18 03:23:01,610 INFO L138 BoogieDeclarations]: Found implementation of procedure quirk_amdprefetch [2021-12-18 03:23:01,610 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2021-12-18 03:23:01,610 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2021-12-18 03:23:01,610 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-18 03:23:01,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-18 03:23:01,611 INFO L130 BoogieDeclarations]: Found specification of procedure _ohci_readl [2021-12-18 03:23:01,611 INFO L138 BoogieDeclarations]: Found implementation of procedure _ohci_readl [2021-12-18 03:23:01,611 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-18 03:23:01,611 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dev_put [2021-12-18 03:23:01,611 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dev_put [2021-12-18 03:23:01,611 INFO L130 BoogieDeclarations]: Found specification of procedure dl_done_list [2021-12-18 03:23:01,611 INFO L138 BoogieDeclarations]: Found implementation of procedure dl_done_list [2021-12-18 03:23:01,611 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_poll_rh_status [2021-12-18 03:23:01,611 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_poll_rh_status [2021-12-18 03:23:01,612 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2021-12-18 03:23:01,612 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2021-12-18 03:23:01,612 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-18 03:23:01,612 INFO L130 BoogieDeclarations]: Found specification of procedure periodic_reinit [2021-12-18 03:23:01,643 INFO L138 BoogieDeclarations]: Found implementation of procedure periodic_reinit [2021-12-18 03:23:01,643 INFO L130 BoogieDeclarations]: Found specification of procedure __le32_to_cpup [2021-12-18 03:23:01,643 INFO L138 BoogieDeclarations]: Found implementation of procedure __le32_to_cpup [2021-12-18 03:23:01,643 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-12-18 03:23:01,643 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-12-18 03:23:01,643 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-18 03:23:01,643 INFO L130 BoogieDeclarations]: Found specification of procedure td_done [2021-12-18 03:23:01,643 INFO L138 BoogieDeclarations]: Found implementation of procedure td_done [2021-12-18 03:23:01,643 INFO L130 BoogieDeclarations]: Found specification of procedure td_fill [2021-12-18 03:23:01,644 INFO L138 BoogieDeclarations]: Found implementation of procedure td_fill [2021-12-18 03:23:01,644 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_urb_dequeue [2021-12-18 03:23:01,644 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_urb_dequeue [2021-12-18 03:23:01,644 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-18 03:23:01,644 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-18 03:23:01,644 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_init [2021-12-18 03:23:01,644 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_init [2021-12-18 03:23:01,644 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2021-12-18 03:23:01,644 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2021-12-18 03:23:01,644 INFO L130 BoogieDeclarations]: Found specification of procedure cpu_to_hc16 [2021-12-18 03:23:01,644 INFO L138 BoogieDeclarations]: Found implementation of procedure cpu_to_hc16 [2021-12-18 03:23:01,644 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-12-18 03:23:01,644 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-12-18 03:23:01,644 INFO L130 BoogieDeclarations]: Found specification of procedure quirk_amdiso [2021-12-18 03:23:01,644 INFO L138 BoogieDeclarations]: Found implementation of procedure quirk_amdiso [2021-12-18 03:23:01,644 INFO L130 BoogieDeclarations]: Found specification of procedure default_llseek [2021-12-18 03:23:01,644 INFO L138 BoogieDeclarations]: Found implementation of procedure default_llseek [2021-12-18 03:23:01,644 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-12-18 03:23:01,644 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-12-18 03:23:01,645 INFO L130 BoogieDeclarations]: Found specification of procedure ed_deschedule [2021-12-18 03:23:01,645 INFO L138 BoogieDeclarations]: Found implementation of procedure ed_deschedule [2021-12-18 03:23:01,645 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_resume_root_hub [2021-12-18 03:23:01,645 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_resume_root_hub [2021-12-18 03:23:01,645 INFO L130 BoogieDeclarations]: Found specification of procedure urb_free_priv [2021-12-18 03:23:01,645 INFO L138 BoogieDeclarations]: Found implementation of procedure urb_free_priv [2021-12-18 03:23:01,645 INFO L130 BoogieDeclarations]: Found specification of procedure finish_unlinks [2021-12-18 03:23:01,645 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_unlinks [2021-12-18 03:23:01,645 INFO L130 BoogieDeclarations]: Found specification of procedure hc32_to_cpu [2021-12-18 03:23:01,645 INFO L138 BoogieDeclarations]: Found implementation of procedure hc32_to_cpu [2021-12-18 03:23:01,646 INFO L130 BoogieDeclarations]: Found specification of procedure platform_set_drvdata [2021-12-18 03:23:01,649 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_set_drvdata [2021-12-18 03:23:01,649 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_dump_status [2021-12-18 03:23:01,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_dump_status [2021-12-18 03:23:01,652 INFO L130 BoogieDeclarations]: Found specification of procedure maybe_print_eds [2021-12-18 03:23:01,652 INFO L138 BoogieDeclarations]: Found implementation of procedure maybe_print_eds [2021-12-18 03:23:01,652 INFO L130 BoogieDeclarations]: Found specification of procedure debug_close [2021-12-18 03:23:01,652 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_close [2021-12-18 03:23:01,653 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_get_frame [2021-12-18 03:23:01,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_get_frame [2021-12-18 03:23:01,654 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_debug_buffer [2021-12-18 03:23:01,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_debug_buffer [2021-12-18 03:23:01,654 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-18 03:23:01,654 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-18 03:23:01,654 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2021-12-18 03:23:01,654 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2021-12-18 03:23:01,654 INFO L130 BoogieDeclarations]: Found specification of procedure cpu_to_hc32 [2021-12-18 03:23:01,654 INFO L138 BoogieDeclarations]: Found implementation of procedure cpu_to_hc32 [2021-12-18 03:23:01,655 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-12-18 03:23:01,655 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-12-18 03:23:01,655 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_usb_reset [2021-12-18 03:23:01,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_usb_reset [2021-12-18 03:23:01,655 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_bus_resume [2021-12-18 03:23:01,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_bus_resume [2021-12-18 03:23:01,655 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2021-12-18 03:23:01,655 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2021-12-18 03:23:01,655 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-12-18 03:23:01,656 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-12-18 03:23:01,656 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_bus_suspend [2021-12-18 03:23:01,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_bus_suspend [2021-12-18 03:23:01,656 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_platform_reset [2021-12-18 03:23:01,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_platform_reset [2021-12-18 03:23:01,656 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_pci_shutdown [2021-12-18 03:23:01,656 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_pci_shutdown [2021-12-18 03:23:01,656 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-18 03:23:01,656 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-18 03:23:01,657 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-18 03:23:01,657 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_free [2021-12-18 03:23:01,657 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_free [2021-12-18 03:23:02,433 INFO L236 CfgBuilder]: Building ICFG [2021-12-18 03:23:02,436 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-18 03:23:06,803 INFO L277 CfgBuilder]: Performing block encoding [2021-12-18 03:23:06,820 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-18 03:23:06,820 INFO L301 CfgBuilder]: Removed 4 assume(true) statements. [2021-12-18 03:23:06,823 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 03:23:06 BoogieIcfgContainer [2021-12-18 03:23:06,823 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-18 03:23:06,824 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-18 03:23:06,825 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-18 03:23:06,827 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-18 03:23:06,827 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.12 03:22:58" (1/3) ... [2021-12-18 03:23:06,828 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@282522bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 03:23:06, skipping insertion in model container [2021-12-18 03:23:06,828 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:23:00" (2/3) ... [2021-12-18 03:23:06,828 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@282522bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 03:23:06, skipping insertion in model container [2021-12-18 03:23:06,828 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 03:23:06" (3/3) ... [2021-12-18 03:23:06,829 INFO L111 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--usb--host--ohci-hcd.ko-main.cil.out.i [2021-12-18 03:23:06,833 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-18 03:23:06,833 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-18 03:23:06,885 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-18 03:23:06,889 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 [2021-12-18 03:23:06,889 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-18 03:23:06,949 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) [2021-12-18 03:23:06,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-12-18 03:23:06,953 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 03:23:06,953 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 03:23:06,953 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 03:23:06,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 03:23:06,957 INFO L85 PathProgramCache]: Analyzing trace with hash -825410595, now seen corresponding path program 1 times [2021-12-18 03:23:06,962 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 03:23:06,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438189654] [2021-12-18 03:23:06,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 03:23:06,963 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 03:23:07,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:23:07,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-18 03:23:07,430 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 03:23:07,430 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438189654] [2021-12-18 03:23:07,430 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1438189654] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 03:23:07,430 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 03:23:07,430 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-18 03:23:07,431 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713017354] [2021-12-18 03:23:07,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 03:23:07,434 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-18 03:23:07,434 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 03:23:07,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-18 03:23:07,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-18 03:23:07,493 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) [2021-12-18 03:23:07,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 03:23:07,923 INFO L93 Difference]: Finished difference Result 9883 states and 15013 transitions. [2021-12-18 03:23:07,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-18 03:23:07,925 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 [2021-12-18 03:23:07,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 03:23:07,977 INFO L225 Difference]: With dead ends: 9883 [2021-12-18 03:23:07,978 INFO L226 Difference]: Without dead ends: 6563 [2021-12-18 03:23:08,007 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 [2021-12-18 03:23:08,010 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 [2021-12-18 03:23:08,011 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] [2021-12-18 03:23:08,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6563 states. [2021-12-18 03:23:08,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6563 to 6549. [2021-12-18 03:23:08,376 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) [2021-12-18 03:23:08,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6549 states to 6549 states and 9761 transitions. [2021-12-18 03:23:08,414 INFO L78 Accepts]: Start accepts. Automaton has 6549 states and 9761 transitions. Word has length 14 [2021-12-18 03:23:08,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 03:23:08,415 INFO L470 AbstractCegarLoop]: Abstraction has 6549 states and 9761 transitions. [2021-12-18 03:23:08,415 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) [2021-12-18 03:23:08,415 INFO L276 IsEmpty]: Start isEmpty. Operand 6549 states and 9761 transitions. [2021-12-18 03:23:08,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-12-18 03:23:08,417 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 03:23:08,417 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 03:23:08,417 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-18 03:23:08,417 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 03:23:08,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 03:23:08,418 INFO L85 PathProgramCache]: Analyzing trace with hash 1327585593, now seen corresponding path program 1 times [2021-12-18 03:23:08,418 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 03:23:08,418 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456905283] [2021-12-18 03:23:08,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 03:23:08,419 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 03:23:08,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:23:08,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-18 03:23:08,572 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 03:23:08,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1456905283] [2021-12-18 03:23:08,572 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1456905283] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 03:23:08,572 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 03:23:08,572 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-18 03:23:08,572 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351049467] [2021-12-18 03:23:08,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 03:23:08,573 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-18 03:23:08,573 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 03:23:08,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-18 03:23:08,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-18 03:23:08,574 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) [2021-12-18 03:23:08,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 03:23:08,995 INFO L93 Difference]: Finished difference Result 19597 states and 29203 transitions. [2021-12-18 03:23:08,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-18 03:23:08,996 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 [2021-12-18 03:23:08,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 03:23:09,069 INFO L225 Difference]: With dead ends: 19597 [2021-12-18 03:23:09,069 INFO L226 Difference]: Without dead ends: 13051 [2021-12-18 03:23:09,103 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 [2021-12-18 03:23:09,104 INFO L933 BasicCegarLoop]: 6326 mSDtfsCounter, 4864 mSDsluCounter, 4891 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4864 SdHoareTripleChecker+Valid, 11217 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-18 03:23:09,105 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4864 Valid, 11217 Invalid, 17 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-18 03:23:09,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13051 states. [2021-12-18 03:23:09,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13051 to 13037. [2021-12-18 03:23:09,514 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) [2021-12-18 03:23:09,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13037 states to 13037 states and 19427 transitions. [2021-12-18 03:23:09,590 INFO L78 Accepts]: Start accepts. Automaton has 13037 states and 19427 transitions. Word has length 16 [2021-12-18 03:23:09,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 03:23:09,590 INFO L470 AbstractCegarLoop]: Abstraction has 13037 states and 19427 transitions. [2021-12-18 03:23:09,591 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) [2021-12-18 03:23:09,591 INFO L276 IsEmpty]: Start isEmpty. Operand 13037 states and 19427 transitions. [2021-12-18 03:23:09,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-12-18 03:23:09,596 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 03:23:09,596 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 03:23:09,596 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-18 03:23:09,596 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 03:23:09,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 03:23:09,597 INFO L85 PathProgramCache]: Analyzing trace with hash -269818897, now seen corresponding path program 1 times [2021-12-18 03:23:09,597 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 03:23:09,597 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503485817] [2021-12-18 03:23:09,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 03:23:09,598 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 03:23:09,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:23:09,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-18 03:23:09,812 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 03:23:09,813 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503485817] [2021-12-18 03:23:09,814 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [503485817] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 03:23:09,814 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 03:23:09,814 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-18 03:23:09,814 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744451024] [2021-12-18 03:23:09,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 03:23:09,815 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-18 03:23:09,815 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 03:23:09,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-18 03:23:09,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-18 03:23:09,816 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) [2021-12-18 03:23:10,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 03:23:10,425 INFO L93 Difference]: Finished difference Result 38959 states and 58058 transitions. [2021-12-18 03:23:10,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-18 03:23:10,430 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 [2021-12-18 03:23:10,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 03:23:10,602 INFO L225 Difference]: With dead ends: 38959 [2021-12-18 03:23:10,603 INFO L226 Difference]: Without dead ends: 25925 [2021-12-18 03:23:10,679 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 [2021-12-18 03:23:10,681 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, 0.2s IncrementalHoareTripleChecker+Time [2021-12-18 03:23:10,682 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4862 Valid, 11638 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-18 03:23:10,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25925 states. [2021-12-18 03:23:11,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25925 to 25911. [2021-12-18 03:23:11,459 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) [2021-12-18 03:23:11,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25911 states to 25911 states and 38614 transitions. [2021-12-18 03:23:11,715 INFO L78 Accepts]: Start accepts. Automaton has 25911 states and 38614 transitions. Word has length 18 [2021-12-18 03:23:11,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 03:23:11,716 INFO L470 AbstractCegarLoop]: Abstraction has 25911 states and 38614 transitions. [2021-12-18 03:23:11,716 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) [2021-12-18 03:23:11,716 INFO L276 IsEmpty]: Start isEmpty. Operand 25911 states and 38614 transitions. [2021-12-18 03:23:11,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-12-18 03:23:11,719 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 03:23:11,720 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] [2021-12-18 03:23:11,720 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-18 03:23:11,720 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 03:23:11,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 03:23:11,720 INFO L85 PathProgramCache]: Analyzing trace with hash 1935095309, now seen corresponding path program 1 times [2021-12-18 03:23:11,721 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 03:23:11,721 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809493070] [2021-12-18 03:23:11,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 03:23:11,721 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 03:23:11,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:23:11,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-18 03:23:11,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:23:11,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-18 03:23:11,908 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 03:23:11,908 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809493070] [2021-12-18 03:23:11,909 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1809493070] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 03:23:11,909 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 03:23:11,909 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-18 03:23:11,909 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921009672] [2021-12-18 03:23:11,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 03:23:11,911 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-18 03:23:11,912 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 03:23:11,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-18 03:23:11,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-18 03:23:11,912 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) [2021-12-18 03:23:12,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 03:23:12,515 INFO L93 Difference]: Finished difference Result 51854 states and 77278 transitions. [2021-12-18 03:23:12,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 03:23:12,515 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 [2021-12-18 03:23:12,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 03:23:12,832 INFO L225 Difference]: With dead ends: 51854 [2021-12-18 03:23:12,833 INFO L226 Difference]: Without dead ends: 25946 [2021-12-18 03:23:13,011 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 [2021-12-18 03:23:13,012 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 [2021-12-18 03:23:13,012 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] [2021-12-18 03:23:13,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25946 states. [2021-12-18 03:23:13,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25946 to 25914. [2021-12-18 03:23:13,718 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) [2021-12-18 03:23:13,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25914 states to 25914 states and 38617 transitions. [2021-12-18 03:23:13,831 INFO L78 Accepts]: Start accepts. Automaton has 25914 states and 38617 transitions. Word has length 29 [2021-12-18 03:23:13,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 03:23:13,832 INFO L470 AbstractCegarLoop]: Abstraction has 25914 states and 38617 transitions. [2021-12-18 03:23:13,832 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) [2021-12-18 03:23:13,832 INFO L276 IsEmpty]: Start isEmpty. Operand 25914 states and 38617 transitions. [2021-12-18 03:23:13,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-12-18 03:23:13,835 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 03:23:13,836 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] [2021-12-18 03:23:13,836 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-18 03:23:13,836 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 03:23:13,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 03:23:13,836 INFO L85 PathProgramCache]: Analyzing trace with hash 1992353611, now seen corresponding path program 1 times [2021-12-18 03:23:13,837 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 03:23:13,837 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4433179] [2021-12-18 03:23:13,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 03:23:13,837 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 03:23:13,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:23:14,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-18 03:23:14,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:23:14,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-18 03:23:14,124 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 03:23:14,124 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4433179] [2021-12-18 03:23:14,125 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [4433179] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 03:23:14,125 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 03:23:14,125 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-18 03:23:14,125 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442722633] [2021-12-18 03:23:14,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 03:23:14,125 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-18 03:23:14,125 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 03:23:14,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-18 03:23:14,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-18 03:23:14,126 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) [2021-12-18 03:23:14,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 03:23:14,611 INFO L93 Difference]: Finished difference Result 25916 states and 38618 transitions. [2021-12-18 03:23:14,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-18 03:23:14,612 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 [2021-12-18 03:23:14,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 03:23:14,732 INFO L225 Difference]: With dead ends: 25916 [2021-12-18 03:23:14,732 INFO L226 Difference]: Without dead ends: 25913 [2021-12-18 03:23:14,753 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 [2021-12-18 03:23:14,753 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 [2021-12-18 03:23:14,754 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] [2021-12-18 03:23:14,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25913 states. [2021-12-18 03:23:15,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25913 to 25913. [2021-12-18 03:23:15,523 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) [2021-12-18 03:23:15,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25913 states to 25913 states and 38615 transitions. [2021-12-18 03:23:15,626 INFO L78 Accepts]: Start accepts. Automaton has 25913 states and 38615 transitions. Word has length 29 [2021-12-18 03:23:15,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 03:23:15,627 INFO L470 AbstractCegarLoop]: Abstraction has 25913 states and 38615 transitions. [2021-12-18 03:23:15,627 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) [2021-12-18 03:23:15,627 INFO L276 IsEmpty]: Start isEmpty. Operand 25913 states and 38615 transitions. [2021-12-18 03:23:15,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-12-18 03:23:15,629 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 03:23:15,629 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] [2021-12-18 03:23:15,629 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-18 03:23:15,629 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 03:23:15,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 03:23:15,630 INFO L85 PathProgramCache]: Analyzing trace with hash 1631933668, now seen corresponding path program 1 times [2021-12-18 03:23:15,630 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 03:23:15,630 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40398690] [2021-12-18 03:23:15,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 03:23:15,630 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 03:23:15,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:23:15,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-18 03:23:15,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:23:15,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-18 03:23:15,806 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 03:23:15,807 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40398690] [2021-12-18 03:23:15,807 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [40398690] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 03:23:15,807 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 03:23:15,807 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-18 03:23:15,807 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817030842] [2021-12-18 03:23:15,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 03:23:15,807 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-18 03:23:15,808 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 03:23:15,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-18 03:23:15,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-18 03:23:15,808 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) [2021-12-18 03:23:16,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 03:23:16,304 INFO L93 Difference]: Finished difference Result 25915 states and 38616 transitions. [2021-12-18 03:23:16,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-18 03:23:16,305 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 [2021-12-18 03:23:16,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 03:23:16,413 INFO L225 Difference]: With dead ends: 25915 [2021-12-18 03:23:16,413 INFO L226 Difference]: Without dead ends: 25912 [2021-12-18 03:23:16,434 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 [2021-12-18 03:23:16,437 INFO L933 BasicCegarLoop]: 4904 mSDtfsCounter, 4881 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s 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 [2021-12-18 03:23:16,438 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] [2021-12-18 03:23:16,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25912 states. [2021-12-18 03:23:17,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25912 to 25912. [2021-12-18 03:23:17,347 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) [2021-12-18 03:23:17,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25912 states to 25912 states and 38613 transitions. [2021-12-18 03:23:17,448 INFO L78 Accepts]: Start accepts. Automaton has 25912 states and 38613 transitions. Word has length 30 [2021-12-18 03:23:17,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 03:23:17,448 INFO L470 AbstractCegarLoop]: Abstraction has 25912 states and 38613 transitions. [2021-12-18 03:23:17,449 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) [2021-12-18 03:23:17,449 INFO L276 IsEmpty]: Start isEmpty. Operand 25912 states and 38613 transitions. [2021-12-18 03:23:17,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-12-18 03:23:17,453 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 03:23:17,453 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] [2021-12-18 03:23:17,453 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-18 03:23:17,453 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 03:23:17,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 03:23:17,454 INFO L85 PathProgramCache]: Analyzing trace with hash -951145106, now seen corresponding path program 1 times [2021-12-18 03:23:17,454 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 03:23:17,454 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048681028] [2021-12-18 03:23:17,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 03:23:17,454 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 03:23:17,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:23:17,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-18 03:23:17,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:23:17,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-18 03:23:17,623 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 03:23:17,624 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048681028] [2021-12-18 03:23:17,624 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1048681028] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 03:23:17,624 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 03:23:17,624 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-18 03:23:17,624 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56771951] [2021-12-18 03:23:17,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 03:23:17,624 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-18 03:23:17,625 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 03:23:17,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-18 03:23:17,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-18 03:23:17,625 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) [2021-12-18 03:23:18,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 03:23:18,314 INFO L93 Difference]: Finished difference Result 40287 states and 59265 transitions. [2021-12-18 03:23:18,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-18 03:23:18,315 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 [2021-12-18 03:23:18,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 03:23:18,490 INFO L225 Difference]: With dead ends: 40287 [2021-12-18 03:23:18,490 INFO L226 Difference]: Without dead ends: 40283 [2021-12-18 03:23:18,522 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 [2021-12-18 03:23:18,523 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 [2021-12-18 03:23:18,523 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] [2021-12-18 03:23:18,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40283 states. [2021-12-18 03:23:19,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40283 to 40281. [2021-12-18 03:23:19,704 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) [2021-12-18 03:23:19,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40281 states to 40281 states and 59253 transitions. [2021-12-18 03:23:19,902 INFO L78 Accepts]: Start accepts. Automaton has 40281 states and 59253 transitions. Word has length 31 [2021-12-18 03:23:19,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 03:23:19,903 INFO L470 AbstractCegarLoop]: Abstraction has 40281 states and 59253 transitions. [2021-12-18 03:23:19,903 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) [2021-12-18 03:23:19,904 INFO L276 IsEmpty]: Start isEmpty. Operand 40281 states and 59253 transitions. [2021-12-18 03:23:19,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-12-18 03:23:19,906 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 03:23:19,906 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] [2021-12-18 03:23:19,907 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-18 03:23:19,907 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 03:23:19,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 03:23:19,907 INFO L85 PathProgramCache]: Analyzing trace with hash 577796391, now seen corresponding path program 1 times [2021-12-18 03:23:19,908 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 03:23:19,908 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223501421] [2021-12-18 03:23:19,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 03:23:19,908 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 03:23:19,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:23:20,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-18 03:23:20,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:23:20,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-18 03:23:20,082 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 03:23:20,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1223501421] [2021-12-18 03:23:20,082 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1223501421] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 03:23:20,082 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 03:23:20,082 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-18 03:23:20,083 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49483067] [2021-12-18 03:23:20,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 03:23:20,083 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-18 03:23:20,084 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 03:23:20,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-18 03:23:20,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-18 03:23:20,084 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) [2021-12-18 03:23:20,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 03:23:20,984 INFO L93 Difference]: Finished difference Result 40283 states and 59254 transitions. [2021-12-18 03:23:20,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-18 03:23:20,990 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 [2021-12-18 03:23:20,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 03:23:21,164 INFO L225 Difference]: With dead ends: 40283 [2021-12-18 03:23:21,165 INFO L226 Difference]: Without dead ends: 40191 [2021-12-18 03:23:21,197 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 [2021-12-18 03:23:21,198 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 [2021-12-18 03:23:21,198 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] [2021-12-18 03:23:21,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40191 states. [2021-12-18 03:23:22,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40191 to 40191. [2021-12-18 03:23:22,418 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) [2021-12-18 03:23:22,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40191 states to 40191 states and 59115 transitions. [2021-12-18 03:23:22,609 INFO L78 Accepts]: Start accepts. Automaton has 40191 states and 59115 transitions. Word has length 32 [2021-12-18 03:23:22,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 03:23:22,609 INFO L470 AbstractCegarLoop]: Abstraction has 40191 states and 59115 transitions. [2021-12-18 03:23:22,610 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) [2021-12-18 03:23:22,610 INFO L276 IsEmpty]: Start isEmpty. Operand 40191 states and 59115 transitions. [2021-12-18 03:23:22,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-12-18 03:23:22,624 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 03:23:22,625 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] [2021-12-18 03:23:22,625 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-18 03:23:22,625 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 03:23:22,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 03:23:22,626 INFO L85 PathProgramCache]: Analyzing trace with hash -1062285101, now seen corresponding path program 1 times [2021-12-18 03:23:22,626 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 03:23:22,626 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087774566] [2021-12-18 03:23:22,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 03:23:22,626 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 03:23:22,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:23:22,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-18 03:23:22,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:23:22,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-18 03:23:22,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:23:22,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-18 03:23:22,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:23:22,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-18 03:23:22,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:23:22,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 03:23:22,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:23:22,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-18 03:23:22,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:23:22,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-18 03:23:22,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:23:22,919 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-18 03:23:22,919 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 03:23:22,919 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2087774566] [2021-12-18 03:23:22,919 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2087774566] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 03:23:22,919 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 03:23:22,920 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-18 03:23:22,920 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812199948] [2021-12-18 03:23:22,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 03:23:22,921 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-18 03:23:22,921 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 03:23:22,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-18 03:23:22,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-18 03:23:22,922 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) [2021-12-18 03:23:29,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 03:23:29,266 INFO L93 Difference]: Finished difference Result 108621 states and 161333 transitions. [2021-12-18 03:23:29,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 03:23:29,266 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 [2021-12-18 03:23:29,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 03:23:29,748 INFO L225 Difference]: With dead ends: 108621 [2021-12-18 03:23:29,749 INFO L226 Difference]: Without dead ends: 68433 [2021-12-18 03:23:29,939 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 [2021-12-18 03:23:29,941 INFO L933 BasicCegarLoop]: 9374 mSDtfsCounter, 5711 mSDsluCounter, 9240 mSDsCounter, 0 mSdLazyCounter, 2857 mSolverCounterSat, 1848 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6530 SdHoareTripleChecker+Valid, 18614 SdHoareTripleChecker+Invalid, 4705 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1848 IncrementalHoareTripleChecker+Valid, 2857 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2021-12-18 03:23:29,941 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6530 Valid, 18614 Invalid, 4705 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1848 Valid, 2857 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2021-12-18 03:23:29,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68433 states. [2021-12-18 03:23:31,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68433 to 59224. [2021-12-18 03:23:31,827 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) [2021-12-18 03:23:32,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59224 states to 59224 states and 87145 transitions. [2021-12-18 03:23:32,282 INFO L78 Accepts]: Start accepts. Automaton has 59224 states and 87145 transitions. Word has length 75 [2021-12-18 03:23:32,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 03:23:32,282 INFO L470 AbstractCegarLoop]: Abstraction has 59224 states and 87145 transitions. [2021-12-18 03:23:32,283 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) [2021-12-18 03:23:32,283 INFO L276 IsEmpty]: Start isEmpty. Operand 59224 states and 87145 transitions. [2021-12-18 03:23:32,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-12-18 03:23:32,297 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 03:23:32,298 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] [2021-12-18 03:23:32,298 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-18 03:23:32,298 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 03:23:32,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 03:23:32,299 INFO L85 PathProgramCache]: Analyzing trace with hash -1311107985, now seen corresponding path program 1 times [2021-12-18 03:23:32,299 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 03:23:32,299 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089470197] [2021-12-18 03:23:32,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 03:23:32,299 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 03:23:32,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:23:32,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-18 03:23:32,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:23:32,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-18 03:23:32,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:23:32,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-18 03:23:32,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:23:32,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-18 03:23:32,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:23:32,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 03:23:32,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:23:32,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-18 03:23:32,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:23:32,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-12-18 03:23:32,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:23:32,521 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-18 03:23:32,521 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 03:23:32,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089470197] [2021-12-18 03:23:32,522 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2089470197] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 03:23:32,522 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 03:23:32,522 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-18 03:23:32,522 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687171135] [2021-12-18 03:23:32,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 03:23:32,522 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-18 03:23:32,523 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 03:23:32,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-18 03:23:32,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-18 03:23:32,523 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) [2021-12-18 03:23:39,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 03:23:39,739 INFO L93 Difference]: Finished difference Result 159432 states and 236929 transitions. [2021-12-18 03:23:39,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 03:23:39,740 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 [2021-12-18 03:23:39,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 03:23:40,239 INFO L225 Difference]: With dead ends: 159432 [2021-12-18 03:23:40,240 INFO L226 Difference]: Without dead ends: 100211 [2021-12-18 03:23:40,427 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 [2021-12-18 03:23:40,427 INFO L933 BasicCegarLoop]: 9317 mSDtfsCounter, 5731 mSDsluCounter, 9217 mSDsCounter, 0 mSdLazyCounter, 2856 mSolverCounterSat, 1856 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6556 SdHoareTripleChecker+Valid, 18534 SdHoareTripleChecker+Invalid, 4712 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1856 IncrementalHoareTripleChecker+Valid, 2856 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2021-12-18 03:23:40,428 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6556 Valid, 18534 Invalid, 4712 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1856 Valid, 2856 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2021-12-18 03:23:40,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100211 states. [2021-12-18 03:23:43,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100211 to 86716. [2021-12-18 03:23:43,258 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) [2021-12-18 03:23:43,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86716 states to 86716 states and 127673 transitions. [2021-12-18 03:23:43,643 INFO L78 Accepts]: Start accepts. Automaton has 86716 states and 127673 transitions. Word has length 77 [2021-12-18 03:23:43,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 03:23:43,644 INFO L470 AbstractCegarLoop]: Abstraction has 86716 states and 127673 transitions. [2021-12-18 03:23:43,644 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) [2021-12-18 03:23:43,644 INFO L276 IsEmpty]: Start isEmpty. Operand 86716 states and 127673 transitions. [2021-12-18 03:23:43,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-12-18 03:23:43,658 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 03:23:43,658 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] [2021-12-18 03:23:43,659 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-18 03:23:43,659 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 03:23:43,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 03:23:43,659 INFO L85 PathProgramCache]: Analyzing trace with hash 1878818405, now seen corresponding path program 1 times [2021-12-18 03:23:43,659 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 03:23:43,660 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991786153] [2021-12-18 03:23:43,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 03:23:43,660 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 03:23:43,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:23:43,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-18 03:23:43,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:23:43,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-18 03:23:43,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:23:43,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-18 03:23:43,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:23:43,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-18 03:23:43,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:23:43,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 03:23:43,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:23:43,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-18 03:23:43,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:23:43,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-18 03:23:43,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:23:43,868 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-18 03:23:43,868 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 03:23:43,868 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1991786153] [2021-12-18 03:23:43,868 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1991786153] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 03:23:43,868 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 03:23:43,869 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-18 03:23:43,869 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556197532] [2021-12-18 03:23:43,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 03:23:43,870 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-18 03:23:43,870 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 03:23:43,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-18 03:23:43,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-18 03:23:43,870 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) [2021-12-18 03:23:52,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 03:23:52,379 INFO L93 Difference]: Finished difference Result 232160 states and 345280 transitions. [2021-12-18 03:23:52,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 03:23:52,380 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 79 [2021-12-18 03:23:52,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 03:23:53,165 INFO L225 Difference]: With dead ends: 232160 [2021-12-18 03:23:53,165 INFO L226 Difference]: Without dead ends: 145447 [2021-12-18 03:23:53,475 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 [2021-12-18 03:23:53,476 INFO L933 BasicCegarLoop]: 9348 mSDtfsCounter, 5708 mSDsluCounter, 9216 mSDsCounter, 0 mSdLazyCounter, 2859 mSolverCounterSat, 1853 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6530 SdHoareTripleChecker+Valid, 18564 SdHoareTripleChecker+Invalid, 4712 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1853 IncrementalHoareTripleChecker+Valid, 2859 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2021-12-18 03:23:53,476 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6530 Valid, 18564 Invalid, 4712 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1853 Valid, 2859 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2021-12-18 03:23:53,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145447 states. [2021-12-18 03:23:57,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145447 to 125840. [2021-12-18 03:23:57,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125840 states, 88068 states have (on average 1.3744606440477813) internal successors, (121046), 90491 states have internal predecessors, (121046), 32195 states have call successors, (32195), 5577 states have call predecessors, (32195), 5576 states have return successors, (32194), 31856 states have call predecessors, (32194), 32194 states have call successors, (32194) [2021-12-18 03:23:58,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125840 states to 125840 states and 185435 transitions. [2021-12-18 03:23:58,410 INFO L78 Accepts]: Start accepts. Automaton has 125840 states and 185435 transitions. Word has length 79 [2021-12-18 03:23:58,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 03:23:58,410 INFO L470 AbstractCegarLoop]: Abstraction has 125840 states and 185435 transitions. [2021-12-18 03:23:58,410 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-12-18 03:23:58,411 INFO L276 IsEmpty]: Start isEmpty. Operand 125840 states and 185435 transitions. [2021-12-18 03:23:58,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-12-18 03:23:58,440 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 03:23:58,440 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 03:23:58,441 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-18 03:23:58,441 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 03:23:58,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 03:23:58,441 INFO L85 PathProgramCache]: Analyzing trace with hash -1778842699, now seen corresponding path program 1 times [2021-12-18 03:23:58,441 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 03:23:58,442 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328268347] [2021-12-18 03:23:58,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 03:23:58,442 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 03:23:58,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:23:58,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-18 03:23:58,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:23:58,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-18 03:23:58,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:23:58,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-18 03:23:58,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:23:58,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-18 03:23:58,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:23:58,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 03:23:58,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:23:58,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-18 03:23:58,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:23:58,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-18 03:23:58,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:23:58,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 03:23:58,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:23:58,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 03:23:58,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:23:58,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 03:23:58,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:23:58,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 03:23:58,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:23:58,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-18 03:23:58,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:23:58,726 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-12-18 03:23:58,726 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 03:23:58,726 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328268347] [2021-12-18 03:23:58,726 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [328268347] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 03:23:58,726 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 03:23:58,726 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 03:23:58,726 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871517397] [2021-12-18 03:23:58,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 03:23:58,727 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 03:23:58,727 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 03:23:58,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 03:23:58,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-18 03:23:58,728 INFO L87 Difference]: Start difference. First operand 125840 states and 185435 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 3 states have internal predecessors, (80), 3 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12)