./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 839c364b 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 0.2.2-839c364b5d67a0f615c82cb70ab247790648d4a9-839c364 [2021-12-14 18:09:45,014 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-14 18:09:45,016 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-14 18:09:45,057 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-14 18:09:45,058 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-14 18:09:45,061 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-14 18:09:45,063 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-14 18:09:45,074 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-14 18:09:45,076 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-14 18:09:45,081 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-14 18:09:45,081 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-14 18:09:45,083 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-14 18:09:45,083 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-14 18:09:45,085 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-14 18:09:45,087 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-14 18:09:45,091 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-14 18:09:45,092 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-14 18:09:45,094 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-14 18:09:45,096 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-14 18:09:45,098 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-14 18:09:45,102 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-14 18:09:45,103 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-14 18:09:45,104 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-14 18:09:45,110 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-14 18:09:45,115 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-14 18:09:45,118 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-14 18:09:45,119 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-14 18:09:45,120 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-14 18:09:45,121 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-14 18:09:45,121 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-14 18:09:45,122 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-14 18:09:45,122 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-14 18:09:45,123 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-14 18:09:45,124 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-14 18:09:45,126 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-14 18:09:45,126 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-14 18:09:45,127 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-14 18:09:45,127 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-14 18:09:45,127 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-14 18:09:45,128 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-14 18:09:45,129 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-14 18:09:45,130 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-14 18:09:45,161 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-14 18:09:45,167 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-14 18:09:45,168 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-14 18:09:45,168 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-14 18:09:45,169 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-14 18:09:45,169 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-14 18:09:45,170 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-14 18:09:45,170 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-14 18:09:45,170 INFO L138 SettingsManager]: * Use SBE=true [2021-12-14 18:09:45,171 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-14 18:09:45,172 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-14 18:09:45,172 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-14 18:09:45,172 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-14 18:09:45,172 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-14 18:09:45,172 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-14 18:09:45,173 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-14 18:09:45,173 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-14 18:09:45,173 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-14 18:09:45,173 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-14 18:09:45,173 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-14 18:09:45,173 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-14 18:09:45,174 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 18:09:45,174 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-14 18:09:45,174 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-14 18:09:45,174 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-14 18:09:45,174 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-14 18:09:45,175 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-14 18:09:45,175 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-14 18:09:45,175 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-14 18:09:45,175 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-14 18:09:45,175 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-14 18:09:45,176 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dfd6d574d08999b62054724022525ae58fcf8eb53291450098ab652e14e39cce [2021-12-14 18:09:45,437 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-14 18:09:45,460 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-14 18:09:45,463 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-14 18:09:45,464 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-14 18:09:45,464 INFO L275 PluginConnector]: CDTParser initialized [2021-12-14 18:09:45,466 INFO L432 ainManager$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 [2021-12-14 18:09:45,525 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/55f55d76d/532f3718db994a6ebbbbdbd6f661f300/FLAGbd000e727 [2021-12-14 18:09:46,488 INFO L306 CDTParser]: Found 1 translation units. [2021-12-14 18:09:46,489 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 [2021-12-14 18:09:46,568 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/55f55d76d/532f3718db994a6ebbbbdbd6f661f300/FLAGbd000e727 [2021-12-14 18:09:46,860 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/55f55d76d/532f3718db994a6ebbbbdbd6f661f300 [2021-12-14 18:09:46,862 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-14 18:09:46,863 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-14 18:09:46,866 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-14 18:09:46,866 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-14 18:09:46,869 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-14 18:09:46,870 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:09:46" (1/1) ... [2021-12-14 18:09:46,871 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e19024e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:09:46, skipping insertion in model container [2021-12-14 18:09:46,872 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:09:46" (1/1) ... [2021-12-14 18:09:46,877 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-14 18:09:47,065 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-14 18:09:51,515 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] [2021-12-14 18:09:52,069 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 18:09:52,174 INFO L203 MainTranslator]: Completed pre-run [2021-12-14 18:09:52,614 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] [2021-12-14 18:09:52,644 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 18:09:52,953 INFO L208 MainTranslator]: Completed translation [2021-12-14 18:09:52,955 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:09:52 WrapperNode [2021-12-14 18:09:52,955 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-14 18:09:52,956 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-14 18:09:52,956 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-14 18:09:52,957 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-14 18:09:52,962 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:09:52" (1/1) ... [2021-12-14 18:09:53,150 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:09:52" (1/1) ... [2021-12-14 18:09:53,413 INFO L137 Inliner]: procedures = 606, calls = 6407, calls flagged for inlining = 203, calls inlined = 162, statements flattened = 7657 [2021-12-14 18:09:53,414 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-14 18:09:53,415 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-14 18:09:53,415 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-14 18:09:53,415 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-14 18:09:53,423 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:09:52" (1/1) ... [2021-12-14 18:09:53,423 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:09:52" (1/1) ... [2021-12-14 18:09:53,485 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:09:52" (1/1) ... [2021-12-14 18:09:53,486 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:09:52" (1/1) ... [2021-12-14 18:09:53,642 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:09:52" (1/1) ... [2021-12-14 18:09:53,673 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:09:52" (1/1) ... [2021-12-14 18:09:53,797 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:09:52" (1/1) ... [2021-12-14 18:09:53,866 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-14 18:09:53,872 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-14 18:09:53,873 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-14 18:09:53,873 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-14 18:09:53,874 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:09:52" (1/1) ... [2021-12-14 18:09:53,903 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 18:09:53,924 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 18:09:53,935 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) [2021-12-14 18:09:53,988 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 [2021-12-14 18:09:54,059 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_le_to_cpu [2021-12-14 18:09:54,059 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_le_to_cpu [2021-12-14 18:09:54,059 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_eth_tx_timeout [2021-12-14 18:09:54,059 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_eth_tx_timeout [2021-12-14 18:09:54,060 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_shutdown_5 [2021-12-14 18:09:54,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_shutdown_5 [2021-12-14 18:09:54,060 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2021-12-14 18:09:54,060 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-12-14 18:09:54,060 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-12-14 18:09:54,060 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-14 18:09:54,060 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-14 18:09:54,061 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_trigger [2021-12-14 18:09:54,061 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_trigger [2021-12-14 18:09:54,061 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-12-14 18:09:54,061 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-12-14 18:09:54,061 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-14 18:09:54,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-14 18:09:54,062 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_mib_mode_helper [2021-12-14 18:09:54,062 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_mib_mode_helper [2021-12-14 18:09:54,062 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_3 [2021-12-14 18:09:54,062 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_3 [2021-12-14 18:09:54,062 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-12-14 18:09:54,062 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-12-14 18:09:54,062 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2021-12-14 18:09:54,063 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2021-12-14 18:09:54,063 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-14 18:09:54,063 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-14 18:09:54,063 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_set_request [2021-12-14 18:09:54,063 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_set_request [2021-12-14 18:09:54,063 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_cpu_to_le [2021-12-14 18:09:54,063 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_cpu_to_le [2021-12-14 18:09:54,064 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_get_state [2021-12-14 18:09:54,064 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_get_state [2021-12-14 18:09:54,064 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-12-14 18:09:54,064 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-12-14 18:09:54,064 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-12-14 18:09:54,064 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-12-14 18:09:54,065 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-12-14 18:09:54,065 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-12-14 18:09:54,065 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_mgt_release [2021-12-14 18:09:54,065 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_mgt_release [2021-12-14 18:09:54,066 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-14 18:09:54,066 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-14 18:09:54,066 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-12-14 18:09:54,066 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-12-14 18:09:54,066 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-14 18:09:54,067 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2021-12-14 18:09:54,067 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2021-12-14 18:09:54,067 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-12-14 18:09:54,067 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-12-14 18:09:54,067 INFO L130 BoogieDeclarations]: Found specification of procedure eth_change_mtu [2021-12-14 18:09:54,067 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_change_mtu [2021-12-14 18:09:54,068 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_set [2021-12-14 18:09:54,068 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_set [2021-12-14 18:09:54,068 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-12-14 18:09:54,068 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-12-14 18:09:54,068 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-12-14 18:09:54,069 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-12-14 18:09:54,070 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-14 18:09:54,070 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_reset [2021-12-14 18:09:54,070 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_reset [2021-12-14 18:09:54,070 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-12-14 18:09:54,070 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-12-14 18:09:54,070 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_from_linear_data [2021-12-14 18:09:54,070 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_from_linear_data [2021-12-14 18:09:54,071 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-14 18:09:54,071 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-14 18:09:54,071 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-12-14 18:09:54,071 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-12-14 18:09:54,072 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-14 18:09:54,072 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-14 18:09:54,072 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_set_mac_address [2021-12-14 18:09:54,072 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_set_mac_address [2021-12-14 18:09:54,073 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_resume [2021-12-14 18:09:54,073 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_resume [2021-12-14 18:09:54,073 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-12-14 18:09:54,073 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-12-14 18:09:54,073 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-12-14 18:09:54,073 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-12-14 18:09:54,074 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-14 18:09:54,074 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-14 18:09:54,074 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-12-14 18:09:54,074 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-12-14 18:09:54,074 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-12-14 18:09:54,074 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-12-14 18:09:54,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-14 18:09:54,075 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-14 18:09:54,075 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-12-14 18:09:54,075 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-12-14 18:09:54,075 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2021-12-14 18:09:54,076 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2021-12-14 18:09:54,076 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-12-14 18:09:54,076 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-12-14 18:09:54,076 INFO L130 BoogieDeclarations]: Found specification of procedure down_write [2021-12-14 18:09:54,076 INFO L138 BoogieDeclarations]: Found implementation of procedure down_write [2021-12-14 18:09:54,076 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2021-12-14 18:09:54,077 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2021-12-14 18:09:54,077 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-12-14 18:09:54,077 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-12-14 18:09:54,078 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_guard [2021-12-14 18:09:54,078 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_guard [2021-12-14 18:09:54,078 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout_uninterruptible [2021-12-14 18:09:54,078 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout_uninterruptible [2021-12-14 18:09:54,079 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2021-12-14 18:09:54,079 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2021-12-14 18:09:54,079 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-14 18:09:54,079 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-14 18:09:54,079 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2021-12-14 18:09:54,079 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2021-12-14 18:09:54,080 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2021-12-14 18:09:54,080 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2021-12-14 18:09:54,080 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_clear_mac [2021-12-14 18:09:54,080 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_clear_mac [2021-12-14 18:09:54,080 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-14 18:09:54,081 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-14 18:09:54,081 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-14 18:09:54,081 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-14 18:09:54,081 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-12-14 18:09:54,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-12-14 18:09:54,084 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-12-14 18:09:54,084 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-12-14 18:09:54,084 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-12-14 18:09:54,084 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-12-14 18:09:54,085 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2021-12-14 18:09:54,086 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2021-12-14 18:09:54,086 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_bring_down [2021-12-14 18:09:54,086 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_bring_down [2021-12-14 18:09:54,087 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_stats_lock_of_NOT_ARG_SIGN [2021-12-14 18:09:54,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_stats_lock_of_NOT_ARG_SIGN [2021-12-14 18:09:54,092 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_trylock [2021-12-14 18:09:54,092 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_trylock [2021-12-14 18:09:54,092 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-14 18:09:54,092 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-14 18:09:54,092 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-14 18:09:54,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-14 18:09:54,093 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-12-14 18:09:54,093 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-12-14 18:09:54,093 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-14 18:09:54,093 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-14 18:09:54,093 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-14 18:09:54,093 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-14 18:09:54,093 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-12-14 18:09:54,094 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-12-14 18:09:54,094 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2021-12-14 18:09:54,094 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2021-12-14 18:09:54,094 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2021-12-14 18:09:54,094 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2021-12-14 18:09:54,094 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2021-12-14 18:09:54,094 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2021-12-14 18:09:54,095 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-12-14 18:09:54,095 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-12-14 18:09:54,095 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2021-12-14 18:09:54,095 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2021-12-14 18:09:54,111 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-14 18:09:54,111 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-12-14 18:09:54,111 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-12-14 18:09:54,112 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_set_state [2021-12-14 18:09:54,112 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_set_state [2021-12-14 18:09:54,112 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-14 18:09:54,112 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible [2021-12-14 18:09:54,112 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible [2021-12-14 18:09:54,112 INFO L130 BoogieDeclarations]: Found specification of procedure up_write [2021-12-14 18:09:54,112 INFO L138 BoogieDeclarations]: Found implementation of procedure up_write [2021-12-14 18:09:54,113 INFO L130 BoogieDeclarations]: Found specification of procedure pci_clear_mwi [2021-12-14 18:09:54,113 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_clear_mwi [2021-12-14 18:09:54,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-14 18:09:54,113 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_byte [2021-12-14 18:09:54,113 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_byte [2021-12-14 18:09:54,113 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2021-12-14 18:09:54,113 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2021-12-14 18:09:54,114 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-12-14 18:09:54,114 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-12-14 18:09:54,114 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2021-12-14 18:09:54,114 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2021-12-14 18:09:54,114 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memmove [2021-12-14 18:09:54,114 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memmove [2021-12-14 18:09:54,114 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-12-14 18:09:54,115 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-12-14 18:09:54,115 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-12-14 18:09:54,115 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-12-14 18:09:54,115 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_remove [2021-12-14 18:09:54,115 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_remove [2021-12-14 18:09:54,115 INFO L130 BoogieDeclarations]: Found specification of procedure isl38xx_w32_flush [2021-12-14 18:09:54,115 INFO L138 BoogieDeclarations]: Found implementation of procedure isl38xx_w32_flush [2021-12-14 18:09:54,116 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-12-14 18:09:54,116 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-12-14 18:09:54,116 INFO L130 BoogieDeclarations]: Found specification of procedure release_firmware [2021-12-14 18:09:54,116 INFO L138 BoogieDeclarations]: Found implementation of procedure release_firmware [2021-12-14 18:09:54,116 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2021-12-14 18:09:54,116 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2021-12-14 18:09:54,116 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_commit_list [2021-12-14 18:09:54,117 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_commit_list [2021-12-14 18:09:54,117 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2021-12-14 18:09:54,117 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2021-12-14 18:09:54,117 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single___1 [2021-12-14 18:09:54,117 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single___1 [2021-12-14 18:09:54,117 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-12-14 18:09:54,117 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-12-14 18:09:54,118 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_mgmt_rx_fill [2021-12-14 18:09:54,118 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_mgmt_rx_fill [2021-12-14 18:09:54,118 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_mgt_transaction [2021-12-14 18:09:54,118 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_mgt_transaction [2021-12-14 18:09:54,118 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-14 18:09:54,118 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-14 18:09:54,118 INFO L130 BoogieDeclarations]: Found specification of procedure channel_of_freq [2021-12-14 18:09:54,119 INFO L138 BoogieDeclarations]: Found implementation of procedure channel_of_freq [2021-12-14 18:09:54,119 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mgmt_lock_of_NOT_ARG_SIGN [2021-12-14 18:09:54,119 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mgmt_lock_of_NOT_ARG_SIGN [2021-12-14 18:09:54,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-14 18:09:54,119 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2021-12-14 18:09:54,119 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2021-12-14 18:09:54,120 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_stats_lock_of_NOT_ARG_SIGN [2021-12-14 18:09:54,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_stats_lock_of_NOT_ARG_SIGN [2021-12-14 18:09:54,120 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2021-12-14 18:09:54,120 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2021-12-14 18:09:54,120 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-14 18:09:54,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-14 18:09:54,120 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_free_memory [2021-12-14 18:09:54,121 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_free_memory [2021-12-14 18:09:54,121 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock_of_islpci_acl [2021-12-14 18:09:54,121 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock_of_islpci_acl [2021-12-14 18:09:54,121 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_commit [2021-12-14 18:09:54,121 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_commit [2021-12-14 18:09:54,121 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-12-14 18:09:54,121 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-12-14 18:09:54,122 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2021-12-14 18:09:54,122 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2021-12-14 18:09:54,122 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2021-12-14 18:09:54,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2021-12-14 18:09:54,122 INFO L130 BoogieDeclarations]: Found specification of procedure __swab32s [2021-12-14 18:09:54,122 INFO L138 BoogieDeclarations]: Found implementation of procedure __swab32s [2021-12-14 18:09:54,122 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab64 [2021-12-14 18:09:54,122 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab64 [2021-12-14 18:09:54,123 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2021-12-14 18:09:54,123 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2021-12-14 18:09:54,123 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_resume_early_5 [2021-12-14 18:09:54,123 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_resume_early_5 [2021-12-14 18:09:54,123 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2021-12-14 18:09:54,123 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2021-12-14 18:09:54,124 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait [2021-12-14 18:09:54,124 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait [2021-12-14 18:09:54,124 INFO L130 BoogieDeclarations]: Found specification of procedure isl38xx_in_queue [2021-12-14 18:09:54,124 INFO L138 BoogieDeclarations]: Found implementation of procedure isl38xx_in_queue [2021-12-14 18:09:54,124 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_islpci_acl [2021-12-14 18:09:54,124 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_islpci_acl [2021-12-14 18:09:54,125 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single___0 [2021-12-14 18:09:54,128 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single___0 [2021-12-14 18:09:54,128 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2021-12-14 18:09:54,128 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2021-12-14 18:09:54,129 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-12-14 18:09:54,129 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-12-14 18:09:54,129 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-14 18:09:54,129 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2021-12-14 18:09:54,129 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2021-12-14 18:09:54,129 INFO L130 BoogieDeclarations]: Found specification of procedure isl38xx_disable_interrupts [2021-12-14 18:09:54,129 INFO L138 BoogieDeclarations]: Found implementation of procedure isl38xx_disable_interrupts [2021-12-14 18:09:54,918 INFO L236 CfgBuilder]: Building ICFG [2021-12-14 18:09:54,922 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-14 18:09:55,249 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-14 18:10:01,153 INFO L277 CfgBuilder]: Performing block encoding [2021-12-14 18:10:01,178 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-14 18:10:01,179 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-14 18:10:01,182 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:10:01 BoogieIcfgContainer [2021-12-14 18:10:01,182 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-14 18:10:01,185 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-14 18:10:01,185 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-14 18:10:01,189 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-14 18:10:01,189 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 06:09:46" (1/3) ... [2021-12-14 18:10:01,189 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@127f6c99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:10:01, skipping insertion in model container [2021-12-14 18:10:01,190 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:09:52" (2/3) ... [2021-12-14 18:10:01,190 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@127f6c99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:10:01, skipping insertion in model container [2021-12-14 18:10:01,190 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:10:01" (3/3) ... [2021-12-14 18:10:01,192 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--prism54--prism54.ko-entry_point.cil.out.i [2021-12-14 18:10:01,198 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-14 18:10:01,198 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-14 18:10:01,252 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-14 18:10:01,258 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 [2021-12-14 18:10:01,258 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-14 18:10:01,310 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) [2021-12-14 18:10:01,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-12-14 18:10:01,324 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:10:01,324 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] [2021-12-14 18:10:01,324 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 18:10:01,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:10:01,332 INFO L85 PathProgramCache]: Analyzing trace with hash 1446364687, now seen corresponding path program 1 times [2021-12-14 18:10:01,339 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:10:01,340 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067127641] [2021-12-14 18:10:01,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:10:01,341 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:10:01,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:10:02,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 18:10:02,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:10:02,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:10:02,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:10:02,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:10:02,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:10:02,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-14 18:10:02,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:10:02,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:10:02,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:10:02,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 18:10:02,289 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:10:02,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067127641] [2021-12-14 18:10:02,290 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2067127641] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:10:02,290 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:10:02,291 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-14 18:10:02,292 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916776382] [2021-12-14 18:10:02,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:10:02,296 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-14 18:10:02,296 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:10:02,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-14 18:10:02,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-14 18:10:02,326 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) [2021-12-14 18:10:06,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:10:06,500 INFO L93 Difference]: Finished difference Result 4087 states and 5885 transitions. [2021-12-14 18:10:06,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-14 18:10:06,504 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 [2021-12-14 18:10:06,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:10:06,552 INFO L225 Difference]: With dead ends: 4087 [2021-12-14 18:10:06,552 INFO L226 Difference]: Without dead ends: 2083 [2021-12-14 18:10:06,566 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 [2021-12-14 18:10:06,569 INFO L933 BasicCegarLoop]: 2624 mSDtfsCounter, 1219 mSDsluCounter, 2167 mSDsCounter, 0 mSdLazyCounter, 1510 mSolverCounterSat, 1235 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1227 SdHoareTripleChecker+Valid, 4791 SdHoareTripleChecker+Invalid, 2745 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1235 IncrementalHoareTripleChecker+Valid, 1510 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2021-12-14 18:10:06,570 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1227 Valid, 4791 Invalid, 2745 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1235 Valid, 1510 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2021-12-14 18:10:06,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2083 states. [2021-12-14 18:10:06,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2083 to 1917. [2021-12-14 18:10:06,744 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) [2021-12-14 18:10:06,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1917 states to 1917 states and 2642 transitions. [2021-12-14 18:10:06,759 INFO L78 Accepts]: Start accepts. Automaton has 1917 states and 2642 transitions. Word has length 52 [2021-12-14 18:10:06,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:10:06,760 INFO L470 AbstractCegarLoop]: Abstraction has 1917 states and 2642 transitions. [2021-12-14 18:10:06,760 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) [2021-12-14 18:10:06,760 INFO L276 IsEmpty]: Start isEmpty. Operand 1917 states and 2642 transitions. [2021-12-14 18:10:06,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-12-14 18:10:06,763 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:10:06,763 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] [2021-12-14 18:10:06,763 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-14 18:10:06,764 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 18:10:06,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:10:06,764 INFO L85 PathProgramCache]: Analyzing trace with hash 1870011409, now seen corresponding path program 1 times [2021-12-14 18:10:06,765 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:10:06,765 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590247757] [2021-12-14 18:10:06,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:10:06,765 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:10:07,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:10:07,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 18:10:07,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:10:07,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:10:07,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:10:07,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:10:07,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:10:07,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-14 18:10:07,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:10:07,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:10:07,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:10:07,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 18:10:07,383 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:10:07,383 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590247757] [2021-12-14 18:10:07,384 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1590247757] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:10:07,384 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:10:07,384 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-14 18:10:07,384 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416350387] [2021-12-14 18:10:07,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:10:07,388 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-14 18:10:07,389 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:10:07,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-14 18:10:07,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-14 18:10:07,390 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) [2021-12-14 18:10:15,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:10:15,433 INFO L93 Difference]: Finished difference Result 6036 states and 8473 transitions. [2021-12-14 18:10:15,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-14 18:10:15,439 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 [2021-12-14 18:10:15,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:10:15,471 INFO L225 Difference]: With dead ends: 6036 [2021-12-14 18:10:15,471 INFO L226 Difference]: Without dead ends: 4129 [2021-12-14 18:10:15,481 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 [2021-12-14 18:10:15,482 INFO L933 BasicCegarLoop]: 3055 mSDtfsCounter, 4389 mSDsluCounter, 5418 mSDsCounter, 0 mSdLazyCounter, 4189 mSolverCounterSat, 2588 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4721 SdHoareTripleChecker+Valid, 8473 SdHoareTripleChecker+Invalid, 6777 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2588 IncrementalHoareTripleChecker+Valid, 4189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2021-12-14 18:10:15,483 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4721 Valid, 8473 Invalid, 6777 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2588 Valid, 4189 Invalid, 0 Unknown, 0 Unchecked, 7.7s Time] [2021-12-14 18:10:15,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4129 states. [2021-12-14 18:10:15,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4129 to 3789. [2021-12-14 18:10:15,618 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) [2021-12-14 18:10:15,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3789 states to 3789 states and 5226 transitions. [2021-12-14 18:10:15,641 INFO L78 Accepts]: Start accepts. Automaton has 3789 states and 5226 transitions. Word has length 52 [2021-12-14 18:10:15,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:10:15,642 INFO L470 AbstractCegarLoop]: Abstraction has 3789 states and 5226 transitions. [2021-12-14 18:10:15,642 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) [2021-12-14 18:10:15,642 INFO L276 IsEmpty]: Start isEmpty. Operand 3789 states and 5226 transitions. [2021-12-14 18:10:15,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-12-14 18:10:15,649 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:10:15,650 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] [2021-12-14 18:10:15,650 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-14 18:10:15,650 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 18:10:15,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:10:15,651 INFO L85 PathProgramCache]: Analyzing trace with hash 1287472509, now seen corresponding path program 1 times [2021-12-14 18:10:15,651 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:10:15,651 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120958524] [2021-12-14 18:10:15,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:10:15,652 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:10:15,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:10:16,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 18:10:16,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:10:16,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:10:16,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:10:16,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:10:16,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:10:16,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-14 18:10:16,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:10:16,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:10:16,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:10:16,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-14 18:10:16,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:10:16,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:10:16,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:10:16,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:10:16,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:10:16,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-14 18:10:16,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:10:16,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-14 18:10:16,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:10:16,238 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-12-14 18:10:16,239 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:10:16,239 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1120958524] [2021-12-14 18:10:16,239 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1120958524] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:10:16,239 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:10:16,240 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-14 18:10:16,240 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766744923] [2021-12-14 18:10:16,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:10:16,240 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-14 18:10:16,242 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:10:16,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-14 18:10:16,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-14 18:10:16,243 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) [2021-12-14 18:10:21,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:10:21,963 INFO L93 Difference]: Finished difference Result 11913 states and 16735 transitions. [2021-12-14 18:10:21,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-14 18:10:21,964 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 [2021-12-14 18:10:21,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:10:22,029 INFO L225 Difference]: With dead ends: 11913 [2021-12-14 18:10:22,030 INFO L226 Difference]: Without dead ends: 8134 [2021-12-14 18:10:22,054 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2021-12-14 18:10:22,055 INFO L933 BasicCegarLoop]: 2947 mSDtfsCounter, 5514 mSDsluCounter, 3231 mSDsCounter, 0 mSdLazyCounter, 2066 mSolverCounterSat, 3875 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5834 SdHoareTripleChecker+Valid, 6178 SdHoareTripleChecker+Invalid, 5941 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3875 IncrementalHoareTripleChecker+Valid, 2066 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2021-12-14 18:10:22,056 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5834 Valid, 6178 Invalid, 5941 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3875 Valid, 2066 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2021-12-14 18:10:22,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8134 states. [2021-12-14 18:10:22,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8134 to 7446. [2021-12-14 18:10:22,394 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) [2021-12-14 18:10:22,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7446 states to 7446 states and 10279 transitions. [2021-12-14 18:10:22,444 INFO L78 Accepts]: Start accepts. Automaton has 7446 states and 10279 transitions. Word has length 73 [2021-12-14 18:10:22,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:10:22,446 INFO L470 AbstractCegarLoop]: Abstraction has 7446 states and 10279 transitions. [2021-12-14 18:10:22,447 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) [2021-12-14 18:10:22,447 INFO L276 IsEmpty]: Start isEmpty. Operand 7446 states and 10279 transitions. [2021-12-14 18:10:22,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-12-14 18:10:22,449 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:10:22,449 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] [2021-12-14 18:10:22,450 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-14 18:10:22,450 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 18:10:22,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:10:22,450 INFO L85 PathProgramCache]: Analyzing trace with hash 486934852, now seen corresponding path program 1 times [2021-12-14 18:10:22,451 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:10:22,451 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699467149] [2021-12-14 18:10:22,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:10:22,451 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:10:22,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:10:22,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 18:10:22,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:10:22,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:10:22,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:10:22,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:10:22,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:10:22,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-14 18:10:22,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:10:23,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:10:23,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:10:23,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-12-14 18:10:23,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:10:23,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:10:23,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:10:23,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:10:23,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:10:23,076 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-12-14 18:10:23,076 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:10:23,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699467149] [2021-12-14 18:10:23,077 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [699467149] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:10:23,077 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:10:23,077 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-14 18:10:23,077 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670883820] [2021-12-14 18:10:23,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:10:23,078 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-14 18:10:23,078 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:10:23,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-14 18:10:23,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-14 18:10:23,079 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) [2021-12-14 18:10:26,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:10:26,214 INFO L93 Difference]: Finished difference Result 8112 states and 11491 transitions. [2021-12-14 18:10:26,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-14 18:10:26,214 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 [2021-12-14 18:10:26,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:10:26,270 INFO L225 Difference]: With dead ends: 8112 [2021-12-14 18:10:26,270 INFO L226 Difference]: Without dead ends: 8109 [2021-12-14 18:10:26,277 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 [2021-12-14 18:10:26,278 INFO L933 BasicCegarLoop]: 2523 mSDtfsCounter, 3927 mSDsluCounter, 1090 mSDsCounter, 0 mSdLazyCounter, 889 mSolverCounterSat, 2097 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4252 SdHoareTripleChecker+Valid, 3613 SdHoareTripleChecker+Invalid, 2986 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2097 IncrementalHoareTripleChecker+Valid, 889 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2021-12-14 18:10:26,279 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4252 Valid, 3613 Invalid, 2986 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2097 Valid, 889 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2021-12-14 18:10:26,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8109 states. [2021-12-14 18:10:26,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8109 to 7445. [2021-12-14 18:10:26,575 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) [2021-12-14 18:10:26,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7445 states to 7445 states and 10277 transitions. [2021-12-14 18:10:26,608 INFO L78 Accepts]: Start accepts. Automaton has 7445 states and 10277 transitions. Word has length 72 [2021-12-14 18:10:26,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:10:26,609 INFO L470 AbstractCegarLoop]: Abstraction has 7445 states and 10277 transitions. [2021-12-14 18:10:26,610 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) [2021-12-14 18:10:26,610 INFO L276 IsEmpty]: Start isEmpty. Operand 7445 states and 10277 transitions. [2021-12-14 18:10:26,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-12-14 18:10:26,612 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:10:26,613 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] [2021-12-14 18:10:26,613 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-14 18:10:26,613 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 18:10:26,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:10:26,614 INFO L85 PathProgramCache]: Analyzing trace with hash -2085748447, now seen corresponding path program 1 times [2021-12-14 18:10:26,614 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:10:26,614 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877004686] [2021-12-14 18:10:26,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:10:26,614 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:10:26,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:10:27,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 18:10:27,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:10:27,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:10:27,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:10:27,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:10:27,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:10:27,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-14 18:10:27,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:10:27,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:10:27,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:10:27,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-12-14 18:10:27,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:10:27,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:10:27,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:10:27,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:10:27,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:10:27,152 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-12-14 18:10:27,153 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:10:27,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877004686] [2021-12-14 18:10:27,153 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1877004686] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:10:27,153 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:10:27,153 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-14 18:10:27,154 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318143563] [2021-12-14 18:10:27,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:10:27,155 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-14 18:10:27,155 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:10:27,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-14 18:10:27,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-14 18:10:27,156 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) [2021-12-14 18:10:31,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:10:31,453 INFO L93 Difference]: Finished difference Result 8111 states and 11489 transitions. [2021-12-14 18:10:31,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-14 18:10:31,454 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 [2021-12-14 18:10:31,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:10:31,498 INFO L225 Difference]: With dead ends: 8111 [2021-12-14 18:10:31,498 INFO L226 Difference]: Without dead ends: 8108 [2021-12-14 18:10:31,505 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 [2021-12-14 18:10:31,506 INFO L933 BasicCegarLoop]: 2514 mSDtfsCounter, 3340 mSDsluCounter, 2980 mSDsCounter, 0 mSdLazyCounter, 2237 mSolverCounterSat, 1472 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3671 SdHoareTripleChecker+Valid, 5494 SdHoareTripleChecker+Invalid, 3709 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1472 IncrementalHoareTripleChecker+Valid, 2237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2021-12-14 18:10:31,506 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3671 Valid, 5494 Invalid, 3709 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1472 Valid, 2237 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2021-12-14 18:10:31,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8108 states. [2021-12-14 18:10:31,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8108 to 7444. [2021-12-14 18:10:31,764 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) [2021-12-14 18:10:31,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7444 states to 7444 states and 10275 transitions. [2021-12-14 18:10:31,792 INFO L78 Accepts]: Start accepts. Automaton has 7444 states and 10275 transitions. Word has length 73 [2021-12-14 18:10:31,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:10:31,794 INFO L470 AbstractCegarLoop]: Abstraction has 7444 states and 10275 transitions. [2021-12-14 18:10:31,796 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) [2021-12-14 18:10:31,796 INFO L276 IsEmpty]: Start isEmpty. Operand 7444 states and 10275 transitions. [2021-12-14 18:10:31,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-12-14 18:10:31,799 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:10:31,799 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] [2021-12-14 18:10:31,799 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-14 18:10:31,799 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 18:10:31,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:10:31,800 INFO L85 PathProgramCache]: Analyzing trace with hash -234547225, now seen corresponding path program 1 times [2021-12-14 18:10:31,800 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:10:31,800 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515229873] [2021-12-14 18:10:31,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:10:31,801 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:10:31,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:10:32,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 18:10:32,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:10:32,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:10:32,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:10:32,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:10:32,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:10:32,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-14 18:10:32,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:10:32,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:10:32,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:10:32,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-12-14 18:10:32,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:10:32,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:10:32,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:10:32,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:10:32,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:10:32,360 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-12-14 18:10:32,360 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:10:32,360 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515229873] [2021-12-14 18:10:32,360 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [515229873] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:10:32,360 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:10:32,360 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-14 18:10:32,361 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831363494] [2021-12-14 18:10:32,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:10:32,361 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-14 18:10:32,361 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:10:32,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-14 18:10:32,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-14 18:10:32,362 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) [2021-12-14 18:10:35,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:10:35,110 INFO L93 Difference]: Finished difference Result 8124 states and 11496 transitions. [2021-12-14 18:10:35,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-14 18:10:35,112 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 [2021-12-14 18:10:35,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:10:35,145 INFO L225 Difference]: With dead ends: 8124 [2021-12-14 18:10:35,145 INFO L226 Difference]: Without dead ends: 8120 [2021-12-14 18:10:35,150 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2021-12-14 18:10:35,151 INFO L933 BasicCegarLoop]: 2520 mSDtfsCounter, 3897 mSDsluCounter, 1095 mSDsCounter, 0 mSdLazyCounter, 915 mSolverCounterSat, 2072 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4221 SdHoareTripleChecker+Valid, 3615 SdHoareTripleChecker+Invalid, 2987 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2072 IncrementalHoareTripleChecker+Valid, 915 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2021-12-14 18:10:35,151 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4221 Valid, 3615 Invalid, 2987 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2072 Valid, 915 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2021-12-14 18:10:35,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8120 states. [2021-12-14 18:10:35,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8120 to 7454. [2021-12-14 18:10:35,400 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) [2021-12-14 18:10:35,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7454 states to 7454 states and 10276 transitions. [2021-12-14 18:10:35,431 INFO L78 Accepts]: Start accepts. Automaton has 7454 states and 10276 transitions. Word has length 74 [2021-12-14 18:10:35,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:10:35,432 INFO L470 AbstractCegarLoop]: Abstraction has 7454 states and 10276 transitions. [2021-12-14 18:10:35,432 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) [2021-12-14 18:10:35,432 INFO L276 IsEmpty]: Start isEmpty. Operand 7454 states and 10276 transitions. [2021-12-14 18:10:35,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-12-14 18:10:35,433 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:10:35,434 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] [2021-12-14 18:10:35,434 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-14 18:10:35,434 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 18:10:35,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:10:35,435 INFO L85 PathProgramCache]: Analyzing trace with hash 1318120676, now seen corresponding path program 1 times [2021-12-14 18:10:35,435 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:10:35,435 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601557272] [2021-12-14 18:10:35,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:10:35,435 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:10:35,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:10:35,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 18:10:35,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:10:35,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:10:35,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:10:35,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:10:35,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:10:35,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-14 18:10:35,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:10:35,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:10:35,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:10:35,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-12-14 18:10:35,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:10:35,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:10:35,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:10:35,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:10:35,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:10:35,975 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-12-14 18:10:35,976 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:10:35,976 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601557272] [2021-12-14 18:10:35,976 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [601557272] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:10:35,976 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:10:35,976 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-14 18:10:35,976 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283976194] [2021-12-14 18:10:35,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:10:35,978 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-14 18:10:35,978 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:10:35,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-14 18:10:35,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-14 18:10:35,979 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)