./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--prism54--prism54.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e19ca921 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-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--prism54--prism54.ko-entry_point.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 dfd6d574d08999b62054724022525ae58fcf8eb53291450098ab652e14e39cce --- Real Ultimate output --- This is Ultimate 0.2.2-dev-e19ca92 [2021-12-22 15:03:53,513 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-22 15:03:53,515 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-22 15:03:53,540 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-22 15:03:53,541 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-22 15:03:53,542 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-22 15:03:53,543 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-22 15:03:53,547 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-22 15:03:53,551 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-22 15:03:53,555 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-22 15:03:53,556 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-22 15:03:53,557 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-22 15:03:53,557 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-22 15:03:53,559 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-22 15:03:53,560 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-22 15:03:53,561 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-22 15:03:53,561 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-22 15:03:53,562 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-22 15:03:53,564 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-22 15:03:53,565 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-22 15:03:53,566 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-22 15:03:53,568 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-22 15:03:53,570 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-22 15:03:53,570 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-22 15:03:53,574 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-22 15:03:53,577 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-22 15:03:53,577 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-22 15:03:53,578 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-22 15:03:53,579 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-22 15:03:53,580 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-22 15:03:53,580 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-22 15:03:53,581 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-22 15:03:53,582 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-22 15:03:53,583 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-22 15:03:53,584 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-22 15:03:53,584 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-22 15:03:53,585 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-22 15:03:53,585 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-22 15:03:53,585 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-22 15:03:53,586 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-22 15:03:53,586 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-22 15:03:53,587 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-22 15:03:53,612 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-22 15:03:53,613 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-22 15:03:53,613 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-22 15:03:53,613 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-22 15:03:53,614 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-22 15:03:53,614 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-22 15:03:53,615 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-22 15:03:53,615 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-22 15:03:53,615 INFO L138 SettingsManager]: * Use SBE=true [2021-12-22 15:03:53,615 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-22 15:03:53,615 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-22 15:03:53,615 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-22 15:03:53,616 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-22 15:03:53,616 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-22 15:03:53,616 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-22 15:03:53,616 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-22 15:03:53,616 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-22 15:03:53,616 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-22 15:03:53,617 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-22 15:03:53,617 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-22 15:03:53,617 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-22 15:03:53,617 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 15:03:53,617 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-22 15:03:53,618 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-22 15:03:53,618 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-22 15:03:53,618 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-22 15:03:53,618 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-22 15:03:53,618 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-22 15:03:53,618 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-22 15:03:53,619 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-22 15:03:53,619 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-22 15:03:53,619 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dfd6d574d08999b62054724022525ae58fcf8eb53291450098ab652e14e39cce [2021-12-22 15:03:53,814 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-22 15:03:53,848 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-22 15:03:53,851 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-22 15:03:53,852 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-22 15:03:53,853 INFO L275 PluginConnector]: CDTParser initialized [2021-12-22 15:03:53,855 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--prism54--prism54.ko-entry_point.cil.out.i [2021-12-22 15:03:53,938 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b78b9b2c7/e2278c0e33c744f5bf55e61a9ea061b7/FLAG6529443bb [2021-12-22 15:03:54,762 INFO L306 CDTParser]: Found 1 translation units. [2021-12-22 15:03:54,763 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--prism54--prism54.ko-entry_point.cil.out.i [2021-12-22 15:03:54,829 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b78b9b2c7/e2278c0e33c744f5bf55e61a9ea061b7/FLAG6529443bb [2021-12-22 15:03:54,895 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b78b9b2c7/e2278c0e33c744f5bf55e61a9ea061b7 [2021-12-22 15:03:54,897 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-22 15:03:54,898 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-22 15:03:54,899 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-22 15:03:54,900 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-22 15:03:54,903 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-22 15:03:54,903 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 03:03:54" (1/1) ... [2021-12-22 15:03:54,904 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69d84360 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:03:54, skipping insertion in model container [2021-12-22 15:03:54,904 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 03:03:54" (1/1) ... [2021-12-22 15:03:54,910 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-22 15:03:55,053 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-22 15:03:58,620 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-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--prism54--prism54.ko-entry_point.cil.out.i[479141,479154] [2021-12-22 15:03:58,929 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 15:03:59,041 INFO L203 MainTranslator]: Completed pre-run [2021-12-22 15:03:59,507 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-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--prism54--prism54.ko-entry_point.cil.out.i[479141,479154] [2021-12-22 15:03:59,530 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 15:03:59,824 INFO L208 MainTranslator]: Completed translation [2021-12-22 15:03:59,826 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:03:59 WrapperNode [2021-12-22 15:03:59,826 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-22 15:03:59,828 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-22 15:03:59,828 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-22 15:03:59,828 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-22 15:03:59,851 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:03:59" (1/1) ... [2021-12-22 15:04:00,094 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:03:59" (1/1) ... [2021-12-22 15:04:00,357 INFO L137 Inliner]: procedures = 606, calls = 6407, calls flagged for inlining = 203, calls inlined = 162, statements flattened = 7657 [2021-12-22 15:04:00,358 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-22 15:04:00,359 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-22 15:04:00,359 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-22 15:04:00,359 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-22 15:04:00,367 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:03:59" (1/1) ... [2021-12-22 15:04:00,367 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:03:59" (1/1) ... [2021-12-22 15:04:00,429 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:03:59" (1/1) ... [2021-12-22 15:04:00,430 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:03:59" (1/1) ... [2021-12-22 15:04:00,580 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:03:59" (1/1) ... [2021-12-22 15:04:00,607 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:03:59" (1/1) ... [2021-12-22 15:04:00,750 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:03:59" (1/1) ... [2021-12-22 15:04:00,805 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-22 15:04:00,806 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-22 15:04:00,807 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-22 15:04:00,807 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-22 15:04:00,808 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:03:59" (1/1) ... [2021-12-22 15:04:00,815 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 15:04:00,824 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 15:04:00,841 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) [2021-12-22 15:04:00,864 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 [2021-12-22 15:04:00,876 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_le_to_cpu [2021-12-22 15:04:00,876 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_le_to_cpu [2021-12-22 15:04:00,876 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_eth_tx_timeout [2021-12-22 15:04:00,876 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_eth_tx_timeout [2021-12-22 15:04:00,877 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_shutdown_5 [2021-12-22 15:04:00,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_shutdown_5 [2021-12-22 15:04:00,877 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2021-12-22 15:04:00,877 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-12-22 15:04:00,877 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-12-22 15:04:00,877 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-22 15:04:00,877 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-22 15:04:00,877 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_trigger [2021-12-22 15:04:00,878 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_trigger [2021-12-22 15:04:00,878 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-12-22 15:04:00,878 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-12-22 15:04:00,878 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-22 15:04:00,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-22 15:04:00,878 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_mib_mode_helper [2021-12-22 15:04:00,878 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_mib_mode_helper [2021-12-22 15:04:00,879 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_3 [2021-12-22 15:04:00,879 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_3 [2021-12-22 15:04:00,879 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-12-22 15:04:00,879 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-12-22 15:04:00,879 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2021-12-22 15:04:00,879 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2021-12-22 15:04:00,879 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-22 15:04:00,880 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-22 15:04:00,880 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_set_request [2021-12-22 15:04:00,880 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_set_request [2021-12-22 15:04:00,880 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_cpu_to_le [2021-12-22 15:04:00,880 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_cpu_to_le [2021-12-22 15:04:00,880 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_get_state [2021-12-22 15:04:00,880 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_get_state [2021-12-22 15:04:00,881 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-12-22 15:04:00,881 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-12-22 15:04:00,881 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-12-22 15:04:00,881 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-12-22 15:04:00,881 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-12-22 15:04:00,881 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-12-22 15:04:00,881 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_mgt_release [2021-12-22 15:04:00,882 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_mgt_release [2021-12-22 15:04:00,882 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-22 15:04:00,882 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-22 15:04:00,882 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-12-22 15:04:00,882 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-12-22 15:04:00,882 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-22 15:04:00,882 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2021-12-22 15:04:00,883 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2021-12-22 15:04:00,883 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-12-22 15:04:00,883 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-12-22 15:04:00,883 INFO L130 BoogieDeclarations]: Found specification of procedure eth_change_mtu [2021-12-22 15:04:00,883 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_change_mtu [2021-12-22 15:04:00,883 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_set [2021-12-22 15:04:00,883 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_set [2021-12-22 15:04:00,884 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-12-22 15:04:00,884 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-12-22 15:04:00,884 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-12-22 15:04:00,884 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-12-22 15:04:00,884 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-22 15:04:00,884 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_reset [2021-12-22 15:04:00,884 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_reset [2021-12-22 15:04:00,885 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-12-22 15:04:00,885 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-12-22 15:04:00,885 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_from_linear_data [2021-12-22 15:04:00,885 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_from_linear_data [2021-12-22 15:04:00,885 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-22 15:04:00,885 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-22 15:04:00,885 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-12-22 15:04:00,886 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-12-22 15:04:00,886 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-22 15:04:00,886 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-22 15:04:00,886 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_set_mac_address [2021-12-22 15:04:00,886 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_set_mac_address [2021-12-22 15:04:00,886 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_resume [2021-12-22 15:04:00,886 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_resume [2021-12-22 15:04:00,886 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-12-22 15:04:00,887 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-12-22 15:04:00,887 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-12-22 15:04:00,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-12-22 15:04:00,887 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-22 15:04:00,887 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-22 15:04:00,887 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-12-22 15:04:00,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-12-22 15:04:00,888 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-12-22 15:04:00,888 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-12-22 15:04:00,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-22 15:04:00,888 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-22 15:04:00,888 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-12-22 15:04:00,888 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-12-22 15:04:00,888 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2021-12-22 15:04:00,889 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2021-12-22 15:04:00,889 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-12-22 15:04:00,889 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-12-22 15:04:00,889 INFO L130 BoogieDeclarations]: Found specification of procedure down_write [2021-12-22 15:04:00,889 INFO L138 BoogieDeclarations]: Found implementation of procedure down_write [2021-12-22 15:04:00,889 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2021-12-22 15:04:00,889 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2021-12-22 15:04:00,890 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-12-22 15:04:00,890 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-12-22 15:04:00,890 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_guard [2021-12-22 15:04:00,890 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_guard [2021-12-22 15:04:00,890 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout_uninterruptible [2021-12-22 15:04:00,890 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout_uninterruptible [2021-12-22 15:04:00,890 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2021-12-22 15:04:00,890 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2021-12-22 15:04:00,891 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-22 15:04:00,891 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-22 15:04:00,891 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2021-12-22 15:04:00,891 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2021-12-22 15:04:00,891 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2021-12-22 15:04:00,891 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2021-12-22 15:04:00,891 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_clear_mac [2021-12-22 15:04:00,892 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_clear_mac [2021-12-22 15:04:00,892 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-22 15:04:00,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-22 15:04:00,892 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-22 15:04:00,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-22 15:04:00,892 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-12-22 15:04:00,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-12-22 15:04:00,893 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-12-22 15:04:00,893 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-12-22 15:04:00,893 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-12-22 15:04:00,893 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-12-22 15:04:00,893 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2021-12-22 15:04:00,893 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2021-12-22 15:04:00,893 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_bring_down [2021-12-22 15:04:00,894 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_bring_down [2021-12-22 15:04:00,894 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_stats_lock_of_NOT_ARG_SIGN [2021-12-22 15:04:00,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_stats_lock_of_NOT_ARG_SIGN [2021-12-22 15:04:00,894 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_trylock [2021-12-22 15:04:00,894 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_trylock [2021-12-22 15:04:00,894 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-22 15:04:00,894 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-22 15:04:00,895 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-22 15:04:00,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-22 15:04:00,895 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-12-22 15:04:00,895 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-12-22 15:04:00,895 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-22 15:04:00,895 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-22 15:04:00,895 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-22 15:04:00,896 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-22 15:04:00,896 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-12-22 15:04:00,896 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-12-22 15:04:00,896 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2021-12-22 15:04:00,896 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2021-12-22 15:04:00,896 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2021-12-22 15:04:00,896 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2021-12-22 15:04:00,896 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2021-12-22 15:04:00,897 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2021-12-22 15:04:00,897 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-12-22 15:04:00,897 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-12-22 15:04:00,897 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2021-12-22 15:04:00,897 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2021-12-22 15:04:00,897 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-22 15:04:00,897 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-12-22 15:04:00,897 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-12-22 15:04:00,898 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_set_state [2021-12-22 15:04:00,898 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_set_state [2021-12-22 15:04:00,898 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-22 15:04:00,898 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible [2021-12-22 15:04:00,898 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible [2021-12-22 15:04:00,898 INFO L130 BoogieDeclarations]: Found specification of procedure up_write [2021-12-22 15:04:00,898 INFO L138 BoogieDeclarations]: Found implementation of procedure up_write [2021-12-22 15:04:00,899 INFO L130 BoogieDeclarations]: Found specification of procedure pci_clear_mwi [2021-12-22 15:04:00,899 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_clear_mwi [2021-12-22 15:04:00,899 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-22 15:04:00,899 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_byte [2021-12-22 15:04:00,899 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_byte [2021-12-22 15:04:00,899 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2021-12-22 15:04:00,899 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2021-12-22 15:04:00,899 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-12-22 15:04:00,900 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-12-22 15:04:00,900 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2021-12-22 15:04:00,900 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2021-12-22 15:04:00,900 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memmove [2021-12-22 15:04:00,900 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memmove [2021-12-22 15:04:00,900 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-12-22 15:04:00,900 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-12-22 15:04:00,900 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-12-22 15:04:00,901 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-12-22 15:04:00,901 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_remove [2021-12-22 15:04:00,901 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_remove [2021-12-22 15:04:00,901 INFO L130 BoogieDeclarations]: Found specification of procedure isl38xx_w32_flush [2021-12-22 15:04:00,901 INFO L138 BoogieDeclarations]: Found implementation of procedure isl38xx_w32_flush [2021-12-22 15:04:00,901 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-12-22 15:04:00,901 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-12-22 15:04:00,901 INFO L130 BoogieDeclarations]: Found specification of procedure release_firmware [2021-12-22 15:04:00,902 INFO L138 BoogieDeclarations]: Found implementation of procedure release_firmware [2021-12-22 15:04:00,902 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2021-12-22 15:04:00,902 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2021-12-22 15:04:00,902 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_commit_list [2021-12-22 15:04:00,902 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_commit_list [2021-12-22 15:04:00,902 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2021-12-22 15:04:00,902 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2021-12-22 15:04:00,903 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single___1 [2021-12-22 15:04:00,903 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single___1 [2021-12-22 15:04:00,903 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-12-22 15:04:00,903 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-12-22 15:04:00,903 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_mgmt_rx_fill [2021-12-22 15:04:00,903 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_mgmt_rx_fill [2021-12-22 15:04:00,903 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_mgt_transaction [2021-12-22 15:04:00,904 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_mgt_transaction [2021-12-22 15:04:00,904 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-22 15:04:00,904 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-22 15:04:00,904 INFO L130 BoogieDeclarations]: Found specification of procedure channel_of_freq [2021-12-22 15:04:00,904 INFO L138 BoogieDeclarations]: Found implementation of procedure channel_of_freq [2021-12-22 15:04:00,904 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mgmt_lock_of_NOT_ARG_SIGN [2021-12-22 15:04:00,904 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mgmt_lock_of_NOT_ARG_SIGN [2021-12-22 15:04:00,904 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-22 15:04:00,905 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2021-12-22 15:04:00,905 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2021-12-22 15:04:00,905 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_stats_lock_of_NOT_ARG_SIGN [2021-12-22 15:04:00,905 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_stats_lock_of_NOT_ARG_SIGN [2021-12-22 15:04:00,905 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2021-12-22 15:04:00,905 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2021-12-22 15:04:00,905 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-22 15:04:00,905 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-22 15:04:00,906 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_free_memory [2021-12-22 15:04:00,906 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_free_memory [2021-12-22 15:04:00,906 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock_of_islpci_acl [2021-12-22 15:04:00,906 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock_of_islpci_acl [2021-12-22 15:04:00,906 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_commit [2021-12-22 15:04:00,906 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_commit [2021-12-22 15:04:00,906 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-12-22 15:04:00,906 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-12-22 15:04:00,907 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2021-12-22 15:04:00,907 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2021-12-22 15:04:00,907 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2021-12-22 15:04:00,907 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2021-12-22 15:04:00,907 INFO L130 BoogieDeclarations]: Found specification of procedure __swab32s [2021-12-22 15:04:00,907 INFO L138 BoogieDeclarations]: Found implementation of procedure __swab32s [2021-12-22 15:04:00,907 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab64 [2021-12-22 15:04:00,907 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab64 [2021-12-22 15:04:00,908 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2021-12-22 15:04:00,908 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2021-12-22 15:04:00,908 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_resume_early_5 [2021-12-22 15:04:00,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_resume_early_5 [2021-12-22 15:04:00,908 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2021-12-22 15:04:00,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2021-12-22 15:04:00,908 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait [2021-12-22 15:04:00,908 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait [2021-12-22 15:04:00,909 INFO L130 BoogieDeclarations]: Found specification of procedure isl38xx_in_queue [2021-12-22 15:04:00,909 INFO L138 BoogieDeclarations]: Found implementation of procedure isl38xx_in_queue [2021-12-22 15:04:00,909 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_islpci_acl [2021-12-22 15:04:00,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_islpci_acl [2021-12-22 15:04:00,909 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single___0 [2021-12-22 15:04:00,909 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single___0 [2021-12-22 15:04:00,909 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2021-12-22 15:04:00,910 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2021-12-22 15:04:00,910 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-12-22 15:04:00,910 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-12-22 15:04:00,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-22 15:04:00,910 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2021-12-22 15:04:00,910 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2021-12-22 15:04:00,910 INFO L130 BoogieDeclarations]: Found specification of procedure isl38xx_disable_interrupts [2021-12-22 15:04:00,910 INFO L138 BoogieDeclarations]: Found implementation of procedure isl38xx_disable_interrupts [2021-12-22 15:04:01,747 INFO L234 CfgBuilder]: Building ICFG [2021-12-22 15:04:01,752 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-22 15:04:02,259 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-22 15:04:07,970 INFO L275 CfgBuilder]: Performing block encoding [2021-12-22 15:04:07,993 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-22 15:04:07,993 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-22 15:04:07,997 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 03:04:07 BoogieIcfgContainer [2021-12-22 15:04:07,997 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-22 15:04:07,999 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-22 15:04:07,999 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-22 15:04:08,002 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-22 15:04:08,002 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 03:03:54" (1/3) ... [2021-12-22 15:04:08,003 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27daf73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 03:04:08, skipping insertion in model container [2021-12-22 15:04:08,003 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:03:59" (2/3) ... [2021-12-22 15:04:08,004 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27daf73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 03:04:08, skipping insertion in model container [2021-12-22 15:04:08,004 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 03:04:07" (3/3) ... [2021-12-22 15:04:08,005 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--prism54--prism54.ko-entry_point.cil.out.i [2021-12-22 15:04:08,010 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-22 15:04:08,010 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-22 15:04:08,063 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-22 15:04:08,070 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 [2021-12-22 15:04:08,070 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-22 15:04:08,126 INFO L276 IsEmpty]: Start isEmpty. Operand has 1961 states, 1362 states have (on average 1.3127753303964758) internal successors, (1788), 1402 states have internal predecessors, (1788), 479 states have call successors, (479), 119 states have call predecessors, (479), 118 states have return successors, (471), 469 states have call predecessors, (471), 471 states have call successors, (471) [2021-12-22 15:04:08,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-12-22 15:04:08,133 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:04:08,134 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 15:04:08,134 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 15:04:08,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:04:08,138 INFO L85 PathProgramCache]: Analyzing trace with hash 1446364687, now seen corresponding path program 1 times [2021-12-22 15:04:08,145 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:04:08,146 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684021415] [2021-12-22 15:04:08,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:04:08,147 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:04:08,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:08,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 15:04:09,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:09,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:04:09,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:09,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:04:09,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:09,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-22 15:04:09,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:09,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:04:09,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:09,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 15:04:09,129 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:04:09,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684021415] [2021-12-22 15:04:09,129 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [684021415] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:04:09,130 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:04:09,130 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-22 15:04:09,131 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462176645] [2021-12-22 15:04:09,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:04:09,136 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-22 15:04:09,136 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:04:09,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-22 15:04:09,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-22 15:04:09,166 INFO L87 Difference]: Start difference. First operand has 1961 states, 1362 states have (on average 1.3127753303964758) internal successors, (1788), 1402 states have internal predecessors, (1788), 479 states have call successors, (479), 119 states have call predecessors, (479), 118 states have return successors, (471), 469 states have call predecessors, (471), 471 states have call successors, (471) Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (6), 5 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-12-22 15:04:13,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:04:13,494 INFO L93 Difference]: Finished difference Result 4087 states and 5885 transitions. [2021-12-22 15:04:13,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-22 15:04:13,496 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (6), 5 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 52 [2021-12-22 15:04:13,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:04:13,522 INFO L225 Difference]: With dead ends: 4087 [2021-12-22 15:04:13,522 INFO L226 Difference]: Without dead ends: 2083 [2021-12-22 15:04:13,538 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-12-22 15:04:13,541 INFO L933 BasicCegarLoop]: 2620 mSDtfsCounter, 1221 mSDsluCounter, 2165 mSDsCounter, 0 mSdLazyCounter, 1507 mSolverCounterSat, 1236 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1229 SdHoareTripleChecker+Valid, 4785 SdHoareTripleChecker+Invalid, 2743 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1236 IncrementalHoareTripleChecker+Valid, 1507 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2021-12-22 15:04:13,542 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1229 Valid, 4785 Invalid, 2743 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1236 Valid, 1507 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2021-12-22 15:04:13,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2083 states. [2021-12-22 15:04:13,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2083 to 1917. [2021-12-22 15:04:13,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1917 states, 1328 states have (on average 1.2899096385542168) internal successors, (1713), 1358 states have internal predecessors, (1713), 471 states have call successors, (471), 118 states have call predecessors, (471), 117 states have return successors, (458), 456 states have call predecessors, (458), 458 states have call successors, (458) [2021-12-22 15:04:13,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1917 states to 1917 states and 2642 transitions. [2021-12-22 15:04:13,743 INFO L78 Accepts]: Start accepts. Automaton has 1917 states and 2642 transitions. Word has length 52 [2021-12-22 15:04:13,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:04:13,743 INFO L470 AbstractCegarLoop]: Abstraction has 1917 states and 2642 transitions. [2021-12-22 15:04:13,744 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (6), 5 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-12-22 15:04:13,744 INFO L276 IsEmpty]: Start isEmpty. Operand 1917 states and 2642 transitions. [2021-12-22 15:04:13,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-12-22 15:04:13,758 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:04:13,758 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 15:04:13,758 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-22 15:04:13,759 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 15:04:13,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:04:13,762 INFO L85 PathProgramCache]: Analyzing trace with hash 1870011409, now seen corresponding path program 1 times [2021-12-22 15:04:13,762 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:04:13,762 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992449125] [2021-12-22 15:04:13,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:04:13,763 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:04:13,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:14,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 15:04:14,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:14,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:04:14,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:14,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:04:14,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:14,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-22 15:04:14,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:14,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:04:14,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:14,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 15:04:14,288 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:04:14,288 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992449125] [2021-12-22 15:04:14,289 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1992449125] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:04:14,289 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:04:14,289 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-22 15:04:14,289 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187365036] [2021-12-22 15:04:14,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:04:14,293 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-22 15:04:14,293 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:04:14,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-22 15:04:14,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-22 15:04:14,294 INFO L87 Difference]: Start difference. First operand 1917 states and 2642 transitions. Second operand has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (6), 5 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2021-12-22 15:04:23,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:04:23,231 INFO L93 Difference]: Finished difference Result 6036 states and 8473 transitions. [2021-12-22 15:04:23,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-22 15:04:23,232 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (6), 5 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 52 [2021-12-22 15:04:23,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:04:23,262 INFO L225 Difference]: With dead ends: 6036 [2021-12-22 15:04:23,262 INFO L226 Difference]: Without dead ends: 4129 [2021-12-22 15:04:23,272 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2021-12-22 15:04:23,273 INFO L933 BasicCegarLoop]: 3054 mSDtfsCounter, 4389 mSDsluCounter, 5412 mSDsCounter, 0 mSdLazyCounter, 4192 mSolverCounterSat, 2588 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4721 SdHoareTripleChecker+Valid, 8466 SdHoareTripleChecker+Invalid, 6780 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2588 IncrementalHoareTripleChecker+Valid, 4192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.5s IncrementalHoareTripleChecker+Time [2021-12-22 15:04:23,273 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4721 Valid, 8466 Invalid, 6780 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2588 Valid, 4192 Invalid, 0 Unknown, 0 Unchecked, 8.5s Time] [2021-12-22 15:04:23,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4129 states. [2021-12-22 15:04:23,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4129 to 3789. [2021-12-22 15:04:23,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3789 states, 2628 states have (on average 1.288812785388128) internal successors, (3387), 2676 states have internal predecessors, (3387), 926 states have call successors, (926), 235 states have call predecessors, (926), 234 states have return successors, (913), 909 states have call predecessors, (913), 913 states have call successors, (913) [2021-12-22 15:04:23,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3789 states to 3789 states and 5226 transitions. [2021-12-22 15:04:23,421 INFO L78 Accepts]: Start accepts. Automaton has 3789 states and 5226 transitions. Word has length 52 [2021-12-22 15:04:23,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:04:23,421 INFO L470 AbstractCegarLoop]: Abstraction has 3789 states and 5226 transitions. [2021-12-22 15:04:23,422 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (6), 5 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2021-12-22 15:04:23,422 INFO L276 IsEmpty]: Start isEmpty. Operand 3789 states and 5226 transitions. [2021-12-22 15:04:23,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-12-22 15:04:23,425 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:04:23,425 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 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] [2021-12-22 15:04:23,425 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-22 15:04:23,426 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 15:04:23,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:04:23,426 INFO L85 PathProgramCache]: Analyzing trace with hash 1287472509, now seen corresponding path program 1 times [2021-12-22 15:04:23,426 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:04:23,427 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74901813] [2021-12-22 15:04:23,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:04:23,427 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:04:23,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:23,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 15:04:23,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:23,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:04:23,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:23,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:04:23,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:23,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-22 15:04:23,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:23,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:04:23,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:23,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-22 15:04:23,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:23,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:04:23,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:24,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:04:24,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:24,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-22 15:04:24,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:24,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-22 15:04:24,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:24,107 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-12-22 15:04:24,108 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:04:24,108 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74901813] [2021-12-22 15:04:24,108 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [74901813] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:04:24,108 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:04:24,108 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-22 15:04:24,109 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40043394] [2021-12-22 15:04:24,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:04:24,109 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-22 15:04:24,110 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:04:24,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-22 15:04:24,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-22 15:04:24,113 INFO L87 Difference]: Start difference. First operand 3789 states and 5226 transitions. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-12-22 15:04:29,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:04:29,550 INFO L93 Difference]: Finished difference Result 11913 states and 16735 transitions. [2021-12-22 15:04:29,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-22 15:04:29,550 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 73 [2021-12-22 15:04:29,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:04:29,609 INFO L225 Difference]: With dead ends: 11913 [2021-12-22 15:04:29,609 INFO L226 Difference]: Without dead ends: 8134 [2021-12-22 15:04:29,630 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2021-12-22 15:04:29,631 INFO L933 BasicCegarLoop]: 2932 mSDtfsCounter, 5518 mSDsluCounter, 3210 mSDsCounter, 0 mSdLazyCounter, 2054 mSolverCounterSat, 3877 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5840 SdHoareTripleChecker+Valid, 6142 SdHoareTripleChecker+Invalid, 5931 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3877 IncrementalHoareTripleChecker+Valid, 2054 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2021-12-22 15:04:29,632 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5840 Valid, 6142 Invalid, 5931 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3877 Valid, 2054 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2021-12-22 15:04:29,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8134 states. [2021-12-22 15:04:29,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8134 to 7446. [2021-12-22 15:04:29,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7446 states, 5168 states have (on average 1.2890866873065014) internal successors, (6662), 5252 states have internal predecessors, (6662), 1815 states have call successors, (1815), 463 states have call predecessors, (1815), 462 states have return successors, (1802), 1794 states have call predecessors, (1802), 1802 states have call successors, (1802) [2021-12-22 15:04:30,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7446 states to 7446 states and 10279 transitions. [2021-12-22 15:04:30,031 INFO L78 Accepts]: Start accepts. Automaton has 7446 states and 10279 transitions. Word has length 73 [2021-12-22 15:04:30,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:04:30,033 INFO L470 AbstractCegarLoop]: Abstraction has 7446 states and 10279 transitions. [2021-12-22 15:04:30,034 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-12-22 15:04:30,034 INFO L276 IsEmpty]: Start isEmpty. Operand 7446 states and 10279 transitions. [2021-12-22 15:04:30,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-12-22 15:04:30,038 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:04:30,038 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 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] [2021-12-22 15:04:30,039 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-22 15:04:30,039 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 15:04:30,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:04:30,039 INFO L85 PathProgramCache]: Analyzing trace with hash 486934852, now seen corresponding path program 1 times [2021-12-22 15:04:30,040 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:04:30,040 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470761253] [2021-12-22 15:04:30,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:04:30,040 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:04:30,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:30,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 15:04:30,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:30,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:04:30,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:30,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:04:30,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:30,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-22 15:04:30,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:30,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:04:30,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:30,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-12-22 15:04:30,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:30,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:04:30,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:30,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:04:30,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:30,582 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-12-22 15:04:30,582 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:04:30,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1470761253] [2021-12-22 15:04:30,582 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1470761253] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:04:30,582 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:04:30,583 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-22 15:04:30,583 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236701034] [2021-12-22 15:04:30,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:04:30,583 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-22 15:04:30,584 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:04:30,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-22 15:04:30,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-22 15:04:30,585 INFO L87 Difference]: Start difference. First operand 7446 states and 10279 transitions. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (7), 5 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-12-22 15:04:33,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:04:33,399 INFO L93 Difference]: Finished difference Result 8112 states and 11491 transitions. [2021-12-22 15:04:33,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-22 15:04:33,403 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (7), 5 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 72 [2021-12-22 15:04:33,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:04:33,454 INFO L225 Difference]: With dead ends: 8112 [2021-12-22 15:04:33,454 INFO L226 Difference]: Without dead ends: 8109 [2021-12-22 15:04:33,461 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-12-22 15:04:33,462 INFO L933 BasicCegarLoop]: 2528 mSDtfsCounter, 3921 mSDsluCounter, 1090 mSDsCounter, 0 mSdLazyCounter, 893 mSolverCounterSat, 2094 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4243 SdHoareTripleChecker+Valid, 3618 SdHoareTripleChecker+Invalid, 2987 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2094 IncrementalHoareTripleChecker+Valid, 893 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2021-12-22 15:04:33,462 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4243 Valid, 3618 Invalid, 2987 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2094 Valid, 893 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2021-12-22 15:04:33,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8109 states. [2021-12-22 15:04:33,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8109 to 7445. [2021-12-22 15:04:33,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7445 states, 5168 states have (on average 1.2888931888544892) internal successors, (6661), 5251 states have internal predecessors, (6661), 1814 states have call successors, (1814), 463 states have call predecessors, (1814), 462 states have return successors, (1802), 1794 states have call predecessors, (1802), 1802 states have call successors, (1802) [2021-12-22 15:04:33,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7445 states to 7445 states and 10277 transitions. [2021-12-22 15:04:33,846 INFO L78 Accepts]: Start accepts. Automaton has 7445 states and 10277 transitions. Word has length 72 [2021-12-22 15:04:33,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:04:33,847 INFO L470 AbstractCegarLoop]: Abstraction has 7445 states and 10277 transitions. [2021-12-22 15:04:33,847 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (7), 5 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-12-22 15:04:33,847 INFO L276 IsEmpty]: Start isEmpty. Operand 7445 states and 10277 transitions. [2021-12-22 15:04:33,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-12-22 15:04:33,849 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:04:33,849 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 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] [2021-12-22 15:04:33,849 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-22 15:04:33,850 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 15:04:33,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:04:33,850 INFO L85 PathProgramCache]: Analyzing trace with hash -2085748447, now seen corresponding path program 1 times [2021-12-22 15:04:33,850 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:04:33,851 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407569331] [2021-12-22 15:04:33,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:04:33,851 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:04:34,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:34,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 15:04:34,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:34,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:04:34,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:34,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:04:34,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:34,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-22 15:04:34,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:34,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:04:34,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:34,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-12-22 15:04:34,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:34,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:04:34,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:34,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:04:34,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:34,327 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-12-22 15:04:34,328 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:04:34,328 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407569331] [2021-12-22 15:04:34,328 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1407569331] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:04:34,328 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:04:34,329 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-22 15:04:34,329 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650379868] [2021-12-22 15:04:34,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:04:34,330 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-22 15:04:34,330 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:04:34,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-22 15:04:34,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-22 15:04:34,331 INFO L87 Difference]: Start difference. First operand 7445 states and 10277 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (7), 5 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-12-22 15:04:38,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:04:38,538 INFO L93 Difference]: Finished difference Result 8111 states and 11489 transitions. [2021-12-22 15:04:38,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-22 15:04:38,539 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (7), 5 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 73 [2021-12-22 15:04:38,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:04:38,582 INFO L225 Difference]: With dead ends: 8111 [2021-12-22 15:04:38,583 INFO L226 Difference]: Without dead ends: 8108 [2021-12-22 15:04:38,587 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-12-22 15:04:38,588 INFO L933 BasicCegarLoop]: 2518 mSDtfsCounter, 3340 mSDsluCounter, 2983 mSDsCounter, 0 mSdLazyCounter, 2246 mSolverCounterSat, 1472 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3665 SdHoareTripleChecker+Valid, 5501 SdHoareTripleChecker+Invalid, 3718 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1472 IncrementalHoareTripleChecker+Valid, 2246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2021-12-22 15:04:38,588 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3665 Valid, 5501 Invalid, 3718 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1472 Valid, 2246 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2021-12-22 15:04:38,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8108 states. [2021-12-22 15:04:38,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8108 to 7444. [2021-12-22 15:04:38,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7444 states, 5168 states have (on average 1.2886996904024768) internal successors, (6660), 5250 states have internal predecessors, (6660), 1813 states have call successors, (1813), 463 states have call predecessors, (1813), 462 states have return successors, (1802), 1794 states have call predecessors, (1802), 1802 states have call successors, (1802) [2021-12-22 15:04:38,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7444 states to 7444 states and 10275 transitions. [2021-12-22 15:04:38,941 INFO L78 Accepts]: Start accepts. Automaton has 7444 states and 10275 transitions. Word has length 73 [2021-12-22 15:04:38,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:04:38,942 INFO L470 AbstractCegarLoop]: Abstraction has 7444 states and 10275 transitions. [2021-12-22 15:04:38,944 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (7), 5 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-12-22 15:04:38,944 INFO L276 IsEmpty]: Start isEmpty. Operand 7444 states and 10275 transitions. [2021-12-22 15:04:38,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-12-22 15:04:38,947 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:04:38,947 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 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] [2021-12-22 15:04:38,948 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-22 15:04:38,948 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 15:04:38,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:04:38,949 INFO L85 PathProgramCache]: Analyzing trace with hash -234547225, now seen corresponding path program 1 times [2021-12-22 15:04:38,950 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:04:38,950 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261781321] [2021-12-22 15:04:38,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:04:38,951 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:04:39,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:39,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 15:04:39,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:39,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:04:39,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:39,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:04:39,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:39,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-22 15:04:39,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:39,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:04:39,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:39,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-12-22 15:04:39,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:39,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:04:39,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:39,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:04:39,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:39,476 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-12-22 15:04:39,476 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:04:39,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261781321] [2021-12-22 15:04:39,477 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1261781321] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:04:39,477 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:04:39,477 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-22 15:04:39,477 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339800121] [2021-12-22 15:04:39,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:04:39,478 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-22 15:04:39,478 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:04:39,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-22 15:04:39,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-22 15:04:39,479 INFO L87 Difference]: Start difference. First operand 7444 states and 10275 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (7), 5 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-12-22 15:04:42,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:04:42,226 INFO L93 Difference]: Finished difference Result 8124 states and 11496 transitions. [2021-12-22 15:04:42,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-22 15:04:42,226 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (7), 5 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 74 [2021-12-22 15:04:42,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:04:42,258 INFO L225 Difference]: With dead ends: 8124 [2021-12-22 15:04:42,258 INFO L226 Difference]: Without dead ends: 8120 [2021-12-22 15:04:42,264 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2021-12-22 15:04:42,265 INFO L933 BasicCegarLoop]: 2521 mSDtfsCounter, 3903 mSDsluCounter, 1095 mSDsCounter, 0 mSdLazyCounter, 917 mSolverCounterSat, 2075 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4226 SdHoareTripleChecker+Valid, 3616 SdHoareTripleChecker+Invalid, 2992 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2075 IncrementalHoareTripleChecker+Valid, 917 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2021-12-22 15:04:42,265 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4226 Valid, 3616 Invalid, 2992 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2075 Valid, 917 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2021-12-22 15:04:42,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8120 states. [2021-12-22 15:04:42,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8120 to 7454. [2021-12-22 15:04:42,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7454 states, 5176 states have (on average 1.2872874806800618) internal successors, (6663), 5256 states have internal predecessors, (6663), 1811 states have call successors, (1811), 467 states have call predecessors, (1811), 466 states have return successors, (1802), 1794 states have call predecessors, (1802), 1802 states have call successors, (1802) [2021-12-22 15:04:42,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7454 states to 7454 states and 10276 transitions. [2021-12-22 15:04:42,618 INFO L78 Accepts]: Start accepts. Automaton has 7454 states and 10276 transitions. Word has length 74 [2021-12-22 15:04:42,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:04:42,618 INFO L470 AbstractCegarLoop]: Abstraction has 7454 states and 10276 transitions. [2021-12-22 15:04:42,619 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (7), 5 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-12-22 15:04:42,619 INFO L276 IsEmpty]: Start isEmpty. Operand 7454 states and 10276 transitions. [2021-12-22 15:04:42,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-12-22 15:04:42,621 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:04:42,621 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 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] [2021-12-22 15:04:42,621 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-22 15:04:42,621 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 15:04:42,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:04:42,622 INFO L85 PathProgramCache]: Analyzing trace with hash 1318120676, now seen corresponding path program 1 times [2021-12-22 15:04:42,622 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:04:42,622 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536390808] [2021-12-22 15:04:42,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:04:42,623 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:04:42,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:42,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 15:04:42,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:42,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:04:42,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:42,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:04:42,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:43,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-22 15:04:43,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:43,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:04:43,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:43,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-12-22 15:04:43,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:43,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:04:43,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:43,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:04:43,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:43,096 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-12-22 15:04:43,096 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:04:43,096 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536390808] [2021-12-22 15:04:43,096 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1536390808] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:04:43,096 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:04:43,097 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-22 15:04:43,097 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092551153] [2021-12-22 15:04:43,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:04:43,098 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-22 15:04:43,098 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:04:43,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-22 15:04:43,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-22 15:04:43,099 INFO L87 Difference]: Start difference. First operand 7454 states and 10276 transitions. Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (7), 5 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6)