./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-consumption/linux-3.8-rc1-32_7a-drivers--media--usb--em28xx--em28xx.ko-ldv_main0.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ae007674 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-consumption/linux-3.8-rc1-32_7a-drivers--media--usb--em28xx--em28xx.ko-ldv_main0.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 213c19133f8e1eb8e04c1430c89bd3923e29e833639b74dc68815899bbf3f9fa --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ae00767 [2021-12-28 03:51:32,943 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-28 03:51:32,945 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-28 03:51:32,979 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-28 03:51:32,980 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-28 03:51:32,983 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-28 03:51:32,984 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-28 03:51:32,989 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-28 03:51:32,991 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-28 03:51:32,995 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-28 03:51:32,996 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-28 03:51:33,000 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-28 03:51:33,000 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-28 03:51:33,002 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-28 03:51:33,004 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-28 03:51:33,006 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-28 03:51:33,007 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-28 03:51:33,008 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-28 03:51:33,010 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-28 03:51:33,015 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-28 03:51:33,016 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-28 03:51:33,017 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-28 03:51:33,018 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-28 03:51:33,019 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-28 03:51:33,025 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-28 03:51:33,025 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-28 03:51:33,026 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-28 03:51:33,032 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-28 03:51:33,033 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-28 03:51:33,033 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-28 03:51:33,034 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-28 03:51:33,034 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-28 03:51:33,036 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-28 03:51:33,036 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-28 03:51:33,037 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-28 03:51:33,037 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-28 03:51:33,038 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-28 03:51:33,038 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-28 03:51:33,039 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-28 03:51:33,040 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-28 03:51:33,040 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-28 03:51:33,044 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-28 03:51:33,072 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-28 03:51:33,072 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-28 03:51:33,072 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-28 03:51:33,073 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-28 03:51:33,073 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-28 03:51:33,074 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-28 03:51:33,074 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-28 03:51:33,075 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-28 03:51:33,075 INFO L138 SettingsManager]: * Use SBE=true [2021-12-28 03:51:33,075 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-28 03:51:33,076 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-28 03:51:33,076 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-28 03:51:33,076 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-28 03:51:33,076 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-28 03:51:33,077 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-28 03:51:33,077 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-28 03:51:33,077 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-28 03:51:33,077 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-28 03:51:33,077 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-28 03:51:33,077 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-28 03:51:33,078 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-28 03:51:33,078 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 03:51:33,078 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-28 03:51:33,078 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-28 03:51:33,078 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-28 03:51:33,079 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-28 03:51:33,079 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-28 03:51:33,079 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-28 03:51:33,079 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-28 03:51:33,079 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-28 03:51:33,080 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 213c19133f8e1eb8e04c1430c89bd3923e29e833639b74dc68815899bbf3f9fa [2021-12-28 03:51:33,345 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-28 03:51:33,372 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-28 03:51:33,375 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-28 03:51:33,376 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-28 03:51:33,377 INFO L275 PluginConnector]: CDTParser initialized [2021-12-28 03:51:33,378 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-consumption/linux-3.8-rc1-32_7a-drivers--media--usb--em28xx--em28xx.ko-ldv_main0.cil.out.i [2021-12-28 03:51:33,440 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a6707e08/2201a3bf34684de2bffd543eb7fb1389/FLAG3f98e8a53 [2021-12-28 03:51:34,371 INFO L306 CDTParser]: Found 1 translation units. [2021-12-28 03:51:34,372 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/linux-3.8-rc1-32_7a-drivers--media--usb--em28xx--em28xx.ko-ldv_main0.cil.out.i [2021-12-28 03:51:34,445 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a6707e08/2201a3bf34684de2bffd543eb7fb1389/FLAG3f98e8a53 [2021-12-28 03:51:34,461 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a6707e08/2201a3bf34684de2bffd543eb7fb1389 [2021-12-28 03:51:34,463 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-28 03:51:34,464 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-28 03:51:34,466 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-28 03:51:34,467 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-28 03:51:34,469 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-28 03:51:34,470 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 03:51:34" (1/1) ... [2021-12-28 03:51:34,471 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6825f2c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:51:34, skipping insertion in model container [2021-12-28 03:51:34,471 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 03:51:34" (1/1) ... [2021-12-28 03:51:34,477 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-28 03:51:34,665 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-28 03:51:37,921 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/linux-3.8-rc1-32_7a-drivers--media--usb--em28xx--em28xx.ko-ldv_main0.cil.out.i[553894,553907] [2021-12-28 03:51:38,215 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 03:51:38,380 INFO L203 MainTranslator]: Completed pre-run [2021-12-28 03:51:39,346 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/linux-3.8-rc1-32_7a-drivers--media--usb--em28xx--em28xx.ko-ldv_main0.cil.out.i[553894,553907] [2021-12-28 03:51:39,356 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 03:51:39,611 INFO L208 MainTranslator]: Completed translation [2021-12-28 03:51:39,611 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:51:39 WrapperNode [2021-12-28 03:51:39,613 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-28 03:51:39,614 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-28 03:51:39,614 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-28 03:51:39,614 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-28 03:51:39,620 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:51:39" (1/1) ... [2021-12-28 03:51:39,916 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:51:39" (1/1) ... [2021-12-28 03:51:40,381 INFO L137 Inliner]: procedures = 457, calls = 15318, calls flagged for inlining = 154, calls inlined = 76, statements flattened = 12878 [2021-12-28 03:51:40,382 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-28 03:51:40,383 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-28 03:51:40,383 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-28 03:51:40,383 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-28 03:51:40,391 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:51:39" (1/1) ... [2021-12-28 03:51:40,392 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:51:39" (1/1) ... [2021-12-28 03:51:40,472 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:51:39" (1/1) ... [2021-12-28 03:51:40,473 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:51:39" (1/1) ... [2021-12-28 03:51:40,649 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:51:39" (1/1) ... [2021-12-28 03:51:40,674 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:51:39" (1/1) ... [2021-12-28 03:51:40,718 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:51:39" (1/1) ... [2021-12-28 03:51:40,775 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-28 03:51:40,776 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-28 03:51:40,776 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-28 03:51:40,776 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-28 03:51:40,777 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:51:39" (1/1) ... [2021-12-28 03:51:40,783 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 03:51:40,792 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 03:51:40,808 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) [2021-12-28 03:51:40,944 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 [2021-12-28 03:51:40,971 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2021-12-28 03:51:40,972 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2021-12-28 03:51:40,972 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_write_regs [2021-12-28 03:51:40,972 INFO L138 BoogieDeclarations]: Found implementation of procedure em28xx_write_regs [2021-12-28 03:51:40,972 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_capture_area_set [2021-12-28 03:51:40,972 INFO L138 BoogieDeclarations]: Found implementation of procedure em28xx_capture_area_set [2021-12-28 03:51:40,973 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_alloc_urbs [2021-12-28 03:51:40,973 INFO L138 BoogieDeclarations]: Found implementation of procedure em28xx_alloc_urbs [2021-12-28 03:51:40,973 INFO L130 BoogieDeclarations]: Found specification of procedure usb_put_dev [2021-12-28 03:51:40,973 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_put_dev [2021-12-28 03:51:40,973 INFO L130 BoogieDeclarations]: Found specification of procedure vb2_fop_mmap [2021-12-28 03:51:40,973 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-28 03:51:40,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-28 03:51:40,973 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_stop_streaming [2021-12-28 03:51:40,974 INFO L138 BoogieDeclarations]: Found implementation of procedure em28xx_stop_streaming [2021-12-28 03:51:40,974 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_device_unregister [2021-12-28 03:51:40,974 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_device_unregister [2021-12-28 03:51:40,974 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2021-12-28 03:51:40,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2021-12-28 03:51:40,974 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-12-28 03:51:40,974 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-12-28 03:51:40,975 INFO L130 BoogieDeclarations]: Found specification of procedure res_free [2021-12-28 03:51:40,975 INFO L138 BoogieDeclarations]: Found implementation of procedure res_free [2021-12-28 03:51:40,975 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-28 03:51:40,975 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-28 03:51:40,975 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_write_ac97 [2021-12-28 03:51:40,975 INFO L138 BoogieDeclarations]: Found implementation of procedure em28xx_write_ac97 [2021-12-28 03:51:40,975 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock_of_em28xx [2021-12-28 03:51:40,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock_of_em28xx [2021-12-28 03:51:40,976 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_handler_free [2021-12-28 03:51:40,976 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_handler_free [2021-12-28 03:51:40,976 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-12-28 03:51:40,976 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-12-28 03:51:40,976 INFO L130 BoogieDeclarations]: Found specification of procedure arch_irqs_disabled_flags [2021-12-28 03:51:40,976 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_irqs_disabled_flags [2021-12-28 03:51:40,977 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_g_frequency [2021-12-28 03:51:40,977 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_g_frequency [2021-12-28 03:51:40,977 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-28 03:51:40,977 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-28 03:51:40,977 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_g_register [2021-12-28 03:51:40,977 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_g_register [2021-12-28 03:51:40,977 INFO L130 BoogieDeclarations]: Found specification of procedure video_devdata [2021-12-28 03:51:40,978 INFO L138 BoogieDeclarations]: Found implementation of procedure video_devdata [2021-12-28 03:51:40,978 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-28 03:51:40,978 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_vbi_supported [2021-12-28 03:51:40,978 INFO L138 BoogieDeclarations]: Found implementation of procedure em28xx_vbi_supported [2021-12-28 03:51:40,978 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2021-12-28 03:51:40,978 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2021-12-28 03:51:40,978 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-12-28 03:51:40,979 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-12-28 03:51:40,979 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_copy_video [2021-12-28 03:51:40,979 INFO L138 BoogieDeclarations]: Found implementation of procedure em28xx_copy_video [2021-12-28 03:51:40,979 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_gpio_set [2021-12-28 03:51:40,979 INFO L138 BoogieDeclarations]: Found implementation of procedure em28xx_gpio_set [2021-12-28 03:51:40,979 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_g_chip_ident [2021-12-28 03:51:40,979 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_g_chip_ident [2021-12-28 03:51:40,980 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~v4l2_std_id~0~TO~int [2021-12-28 03:51:40,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~v4l2_std_id~0~TO~int [2021-12-28 03:51:40,980 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_try_fmt_vid_cap [2021-12-28 03:51:40,980 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_try_fmt_vid_cap [2021-12-28 03:51:40,980 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_read_reg_req [2021-12-28 03:51:40,980 INFO L138 BoogieDeclarations]: Found implementation of procedure em28xx_read_reg_req [2021-12-28 03:51:40,980 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-28 03:51:40,981 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_ctrl_urb_lock_of_em28xx [2021-12-28 03:51:40,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_ctrl_urb_lock_of_em28xx [2021-12-28 03:51:40,981 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2021-12-28 03:51:40,981 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2021-12-28 03:51:40,981 INFO L130 BoogieDeclarations]: Found specification of procedure vb2_buffer_done [2021-12-28 03:51:40,981 INFO L138 BoogieDeclarations]: Found implementation of procedure vb2_buffer_done [2021-12-28 03:51:40,981 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2021-12-28 03:51:40,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2021-12-28 03:51:40,982 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_ctrl_urb_lock_of_em28xx [2021-12-28 03:51:40,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_ctrl_urb_lock_of_em28xx [2021-12-28 03:51:40,982 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-28 03:51:40,982 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~X~~u32~0~X~~u32~0~TO~int [2021-12-28 03:51:40,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~X~~u32~0~X~~u32~0~TO~int [2021-12-28 03:51:40,982 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2021-12-28 03:51:40,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2021-12-28 03:51:40,983 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-28 03:51:40,983 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_i2c_unregister [2021-12-28 03:51:40,983 INFO L138 BoogieDeclarations]: Found implementation of procedure em28xx_i2c_unregister [2021-12-28 03:51:40,983 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-28 03:51:40,983 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-28 03:51:40,983 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2021-12-28 03:51:40,983 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2021-12-28 03:51:40,984 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_write_reg [2021-12-28 03:51:40,984 INFO L138 BoogieDeclarations]: Found implementation of procedure em28xx_write_reg [2021-12-28 03:51:40,984 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2021-12-28 03:51:40,984 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2021-12-28 03:51:40,984 INFO L130 BoogieDeclarations]: Found specification of procedure video_is_registered [2021-12-28 03:51:40,984 INFO L138 BoogieDeclarations]: Found implementation of procedure video_is_registered [2021-12-28 03:51:40,984 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_subscribe_event [2021-12-28 03:51:40,985 INFO L130 BoogieDeclarations]: Found specification of procedure video_unregister_device [2021-12-28 03:51:40,985 INFO L138 BoogieDeclarations]: Found implementation of procedure video_unregister_device [2021-12-28 03:51:40,985 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-28 03:51:40,985 INFO L130 BoogieDeclarations]: Found specification of procedure video_mux [2021-12-28 03:51:40,985 INFO L138 BoogieDeclarations]: Found implementation of procedure video_mux [2021-12-28 03:51:40,985 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-28 03:51:40,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-28 03:51:40,986 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-28 03:51:40,986 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_audio_analog_set [2021-12-28 03:51:40,986 INFO L138 BoogieDeclarations]: Found implementation of procedure em28xx_audio_analog_set [2021-12-28 03:51:40,986 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-12-28 03:51:40,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-12-28 03:51:40,986 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2021-12-28 03:51:40,986 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2021-12-28 03:51:40,987 INFO L130 BoogieDeclarations]: Found specification of procedure buffer_prepare [2021-12-28 03:51:40,987 INFO L138 BoogieDeclarations]: Found implementation of procedure buffer_prepare [2021-12-28 03:51:40,987 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_start_analog_streaming [2021-12-28 03:51:40,987 INFO L138 BoogieDeclarations]: Found implementation of procedure em28xx_start_analog_streaming [2021-12-28 03:51:40,987 INFO L130 BoogieDeclarations]: Found specification of procedure format_by_fourcc [2021-12-28 03:51:40,987 INFO L138 BoogieDeclarations]: Found implementation of procedure format_by_fourcc [2021-12-28 03:51:40,987 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_read_reg [2021-12-28 03:51:40,987 INFO L138 BoogieDeclarations]: Found implementation of procedure em28xx_read_reg [2021-12-28 03:51:40,988 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_reg_len [2021-12-28 03:51:40,988 INFO L138 BoogieDeclarations]: Found implementation of procedure em28xx_reg_len [2021-12-28 03:51:40,988 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2021-12-28 03:51:40,988 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2021-12-28 03:51:40,988 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_event_unsubscribe [2021-12-28 03:51:40,988 INFO L130 BoogieDeclarations]: Found specification of procedure get_ressource [2021-12-28 03:51:40,989 INFO L138 BoogieDeclarations]: Found implementation of procedure get_ressource [2021-12-28 03:51:40,989 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_save_flags [2021-12-28 03:51:40,989 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_save_flags [2021-12-28 03:51:40,989 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_set_outfmt [2021-12-28 03:51:40,989 INFO L138 BoogieDeclarations]: Found implementation of procedure em28xx_set_outfmt [2021-12-28 03:51:40,989 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-28 03:51:40,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-28 03:51:40,990 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2021-12-28 03:51:40,990 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2021-12-28 03:51:40,990 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-12-28 03:51:40,990 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-12-28 03:51:40,990 INFO L130 BoogieDeclarations]: Found specification of procedure vb2_set_plane_payload [2021-12-28 03:51:40,990 INFO L138 BoogieDeclarations]: Found implementation of procedure vb2_set_plane_payload [2021-12-28 03:51:40,990 INFO L130 BoogieDeclarations]: Found specification of procedure vb2_fop_poll [2021-12-28 03:51:40,990 INFO L130 BoogieDeclarations]: Found specification of procedure usb_translate_errors [2021-12-28 03:51:40,991 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_translate_errors [2021-12-28 03:51:40,991 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-28 03:51:40,991 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-28 03:51:40,991 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_interface [2021-12-28 03:51:40,991 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_interface [2021-12-28 03:51:40,991 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_v4l2_close [2021-12-28 03:51:40,991 INFO L138 BoogieDeclarations]: Found implementation of procedure em28xx_v4l2_close [2021-12-28 03:51:40,992 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_read_reg_req_len [2021-12-28 03:51:40,992 INFO L138 BoogieDeclarations]: Found implementation of procedure em28xx_read_reg_req_len [2021-12-28 03:51:40,992 INFO L130 BoogieDeclarations]: Found specification of procedure video_device_release [2021-12-28 03:51:40,992 INFO L138 BoogieDeclarations]: Found implementation of procedure video_device_release [2021-12-28 03:51:40,992 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_write_reg_bits [2021-12-28 03:51:40,992 INFO L138 BoogieDeclarations]: Found implementation of procedure em28xx_write_reg_bits [2021-12-28 03:51:40,992 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-28 03:51:40,992 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-28 03:51:40,993 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-28 03:51:40,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-28 03:51:40,993 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~TO~int [2021-12-28 03:51:40,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~TO~int [2021-12-28 03:51:40,993 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_s_ctrl [2021-12-28 03:51:40,993 INFO L138 BoogieDeclarations]: Found implementation of procedure em28xx_s_ctrl [2021-12-28 03:51:40,993 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-28 03:51:40,993 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-28 03:51:40,994 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_s_frequency [2021-12-28 03:51:40,994 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_s_frequency [2021-12-28 03:51:40,994 INFO L130 BoogieDeclarations]: Found specification of procedure vbi_buffer_prepare [2021-12-28 03:51:40,994 INFO L138 BoogieDeclarations]: Found implementation of procedure vbi_buffer_prepare [2021-12-28 03:51:40,994 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_release_resources [2021-12-28 03:51:40,994 INFO L138 BoogieDeclarations]: Found implementation of procedure em28xx_release_resources [2021-12-28 03:51:40,994 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2021-12-28 03:51:40,994 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2021-12-28 03:51:40,995 INFO L130 BoogieDeclarations]: Found specification of procedure video_drvdata [2021-12-28 03:51:40,995 INFO L138 BoogieDeclarations]: Found implementation of procedure video_drvdata [2021-12-28 03:51:40,995 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_em28xx [2021-12-28 03:51:40,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_em28xx [2021-12-28 03:51:40,995 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_write_regs_req [2021-12-28 03:51:40,995 INFO L138 BoogieDeclarations]: Found implementation of procedure em28xx_write_regs_req [2021-12-28 03:51:40,995 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-28 03:51:40,995 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unlink_urb [2021-12-28 03:51:40,996 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unlink_urb [2021-12-28 03:51:40,996 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-28 03:51:40,996 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_g_chip_info [2021-12-28 03:51:40,996 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_g_chip_info [2021-12-28 03:51:40,996 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_set_video_format [2021-12-28 03:51:40,996 INFO L138 BoogieDeclarations]: Found implementation of procedure em28xx_set_video_format [2021-12-28 03:51:40,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-28 03:51:40,997 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_set_mode [2021-12-28 03:51:40,997 INFO L138 BoogieDeclarations]: Found implementation of procedure em28xx_set_mode [2021-12-28 03:51:40,997 INFO L130 BoogieDeclarations]: Found specification of procedure video_device_node_name [2021-12-28 03:51:40,997 INFO L138 BoogieDeclarations]: Found implementation of procedure video_device_node_name [2021-12-28 03:51:40,997 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-12-28 03:51:40,997 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-12-28 03:51:40,997 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-12-28 03:51:40,997 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-12-28 03:51:40,998 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_resolution_set [2021-12-28 03:51:40,998 INFO L138 BoogieDeclarations]: Found implementation of procedure em28xx_resolution_set [2021-12-28 03:51:40,998 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2021-12-28 03:51:40,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2021-12-28 03:51:40,998 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_is_ac97_ready [2021-12-28 03:51:40,998 INFO L138 BoogieDeclarations]: Found implementation of procedure em28xx_is_ac97_ready [2021-12-28 03:51:40,998 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2021-12-28 03:51:40,998 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2021-12-28 03:51:40,999 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_querycap [2021-12-28 03:51:40,999 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_querycap [2021-12-28 03:51:40,999 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_v4l2_open [2021-12-28 03:51:40,999 INFO L138 BoogieDeclarations]: Found implementation of procedure em28xx_v4l2_open [2021-12-28 03:51:40,999 INFO L130 BoogieDeclarations]: Found specification of procedure vb2_plane_size [2021-12-28 03:51:40,999 INFO L138 BoogieDeclarations]: Found implementation of procedure vb2_plane_size [2021-12-28 03:51:40,999 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2021-12-28 03:51:41,000 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2021-12-28 03:51:41,000 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u8~0~X~~u16~0~X~$Pointer$~X~int~TO~int [2021-12-28 03:51:41,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u8~0~X~~u16~0~X~$Pointer$~X~int~TO~int [2021-12-28 03:51:41,000 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-28 03:51:41,000 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-28 03:51:41,000 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-28 03:51:41,000 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-28 03:51:41,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-28 03:51:41,001 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_uninit_usb_xfer [2021-12-28 03:51:41,001 INFO L138 BoogieDeclarations]: Found implementation of procedure em28xx_uninit_usb_xfer [2021-12-28 03:51:41,001 INFO L130 BoogieDeclarations]: Found specification of procedure finish_field_prepare_next [2021-12-28 03:51:41,001 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_field_prepare_next [2021-12-28 03:51:41,001 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_read_ac97 [2021-12-28 03:51:41,001 INFO L138 BoogieDeclarations]: Found implementation of procedure em28xx_read_ac97 [2021-12-28 03:51:41,001 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_wake_i2c [2021-12-28 03:51:41,002 INFO L138 BoogieDeclarations]: Found implementation of procedure em28xx_wake_i2c [2021-12-28 03:51:41,002 INFO L130 BoogieDeclarations]: Found specification of procedure size_to_scale [2021-12-28 03:51:41,002 INFO L138 BoogieDeclarations]: Found implementation of procedure size_to_scale [2021-12-28 03:51:41,002 INFO L130 BoogieDeclarations]: Found specification of procedure vb2_get_drv_priv [2021-12-28 03:51:41,002 INFO L138 BoogieDeclarations]: Found implementation of procedure vb2_get_drv_priv [2021-12-28 03:51:41,002 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_s_register [2021-12-28 03:51:41,002 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_s_register [2021-12-28 03:51:41,002 INFO L130 BoogieDeclarations]: Found specification of procedure scale_to_size [2021-12-28 03:51:41,003 INFO L138 BoogieDeclarations]: Found implementation of procedure scale_to_size [2021-12-28 03:51:41,003 INFO L130 BoogieDeclarations]: Found specification of procedure print_err_status [2021-12-28 03:51:41,003 INFO L138 BoogieDeclarations]: Found implementation of procedure print_err_status [2021-12-28 03:51:41,003 INFO L130 BoogieDeclarations]: Found specification of procedure norm_maxw [2021-12-28 03:51:41,003 INFO L138 BoogieDeclarations]: Found implementation of procedure norm_maxw [2021-12-28 03:51:41,003 INFO L130 BoogieDeclarations]: Found specification of procedure norm_maxh [2021-12-28 03:51:41,003 INFO L138 BoogieDeclarations]: Found implementation of procedure norm_maxh [2021-12-28 03:51:41,003 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-12-28 03:51:41,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-12-28 03:51:41,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-28 03:51:41,004 INFO L130 BoogieDeclarations]: Found specification of procedure vb2_plane_vaddr [2021-12-28 03:51:41,004 INFO L138 BoogieDeclarations]: Found implementation of procedure vb2_plane_vaddr [2021-12-28 03:51:41,004 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-12-28 03:51:41,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-12-28 03:51:41,004 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_capture_start [2021-12-28 03:51:41,004 INFO L138 BoogieDeclarations]: Found implementation of procedure em28xx_capture_start [2021-12-28 03:51:41,859 INFO L234 CfgBuilder]: Building ICFG [2021-12-28 03:51:41,864 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-28 03:52:05,227 INFO L275 CfgBuilder]: Performing block encoding [2021-12-28 03:52:05,252 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-28 03:52:05,253 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-28 03:52:05,259 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 03:52:05 BoogieIcfgContainer [2021-12-28 03:52:05,259 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-28 03:52:05,261 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-28 03:52:05,261 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-28 03:52:05,264 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-28 03:52:05,265 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.12 03:51:34" (1/3) ... [2021-12-28 03:52:05,266 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2edfbfbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 03:52:05, skipping insertion in model container [2021-12-28 03:52:05,266 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:51:39" (2/3) ... [2021-12-28 03:52:05,267 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2edfbfbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 03:52:05, skipping insertion in model container [2021-12-28 03:52:05,272 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 03:52:05" (3/3) ... [2021-12-28 03:52:05,273 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.8-rc1-32_7a-drivers--media--usb--em28xx--em28xx.ko-ldv_main0.cil.out.i [2021-12-28 03:52:05,278 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-28 03:52:05,278 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-28 03:52:05,338 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-28 03:52:05,347 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 [2021-12-28 03:52:05,347 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-28 03:52:05,404 INFO L276 IsEmpty]: Start isEmpty. Operand has 1900 states, 1392 states have (on average 1.3915229885057472) internal successors, (1937), 1417 states have internal predecessors, (1937), 395 states have call successors, (395), 111 states have call predecessors, (395), 111 states have return successors, (395), 394 states have call predecessors, (395), 395 states have call successors, (395) [2021-12-28 03:52:05,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-12-28 03:52:05,409 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 03:52:05,410 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 03:52:05,410 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 03:52:05,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:52:05,419 INFO L85 PathProgramCache]: Analyzing trace with hash 284761344, now seen corresponding path program 1 times [2021-12-28 03:52:05,426 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:52:05,426 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924167117] [2021-12-28 03:52:05,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:52:05,427 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:52:06,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:52:07,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 03:52:07,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:52:07,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 03:52:07,517 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:52:07,518 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924167117] [2021-12-28 03:52:07,518 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [924167117] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 03:52:07,519 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 03:52:07,519 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-28 03:52:07,520 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656339682] [2021-12-28 03:52:07,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 03:52:07,524 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-28 03:52:07,524 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:52:07,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-28 03:52:07,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-28 03:52:07,550 INFO L87 Difference]: Start difference. First operand has 1900 states, 1392 states have (on average 1.3915229885057472) internal successors, (1937), 1417 states have internal predecessors, (1937), 395 states have call successors, (395), 111 states have call predecessors, (395), 111 states have return successors, (395), 394 states have call predecessors, (395), 395 states have call successors, (395) Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-28 03:52:08,635 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 03:52:12,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 03:52:12,577 INFO L93 Difference]: Finished difference Result 3838 states and 5681 transitions. [2021-12-28 03:52:12,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-28 03:52:12,581 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2021-12-28 03:52:12,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 03:52:12,617 INFO L225 Difference]: With dead ends: 3838 [2021-12-28 03:52:12,618 INFO L226 Difference]: Without dead ends: 1936 [2021-12-28 03:52:12,636 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-28 03:52:12,642 INFO L933 BasicCegarLoop]: 2339 mSDtfsCounter, 3569 mSDsluCounter, 406 mSDsCounter, 0 mSdLazyCounter, 685 mSolverCounterSat, 1146 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3681 SdHoareTripleChecker+Valid, 2745 SdHoareTripleChecker+Invalid, 1831 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1146 IncrementalHoareTripleChecker+Valid, 685 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2021-12-28 03:52:12,644 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3681 Valid, 2745 Invalid, 1831 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1146 Valid, 685 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2021-12-28 03:52:12,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1936 states. [2021-12-28 03:52:12,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1936 to 1896. [2021-12-28 03:52:12,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1896 states, 1391 states have (on average 1.387491013659238) internal successors, (1930), 1412 states have internal predecessors, (1930), 393 states have call successors, (393), 113 states have call predecessors, (393), 111 states have return successors, (382), 381 states have call predecessors, (382), 382 states have call successors, (382) [2021-12-28 03:52:12,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1896 states to 1896 states and 2705 transitions. [2021-12-28 03:52:12,804 INFO L78 Accepts]: Start accepts. Automaton has 1896 states and 2705 transitions. Word has length 12 [2021-12-28 03:52:12,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 03:52:12,805 INFO L470 AbstractCegarLoop]: Abstraction has 1896 states and 2705 transitions. [2021-12-28 03:52:12,805 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-28 03:52:12,805 INFO L276 IsEmpty]: Start isEmpty. Operand 1896 states and 2705 transitions. [2021-12-28 03:52:12,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-12-28 03:52:12,807 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 03:52:12,807 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 03:52:12,807 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-28 03:52:12,808 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 03:52:12,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:52:12,808 INFO L85 PathProgramCache]: Analyzing trace with hash 236165592, now seen corresponding path program 1 times [2021-12-28 03:52:12,809 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:52:12,809 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413548785] [2021-12-28 03:52:12,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:52:12,809 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:52:13,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:52:14,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 03:52:14,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:52:14,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 03:52:14,108 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:52:14,108 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [413548785] [2021-12-28 03:52:14,108 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [413548785] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 03:52:14,108 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 03:52:14,109 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-28 03:52:14,109 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852218128] [2021-12-28 03:52:14,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 03:52:14,110 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-28 03:52:14,110 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:52:14,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-28 03:52:14,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-28 03:52:14,111 INFO L87 Difference]: Start difference. First operand 1896 states and 2705 transitions. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-28 03:52:15,415 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 03:52:20,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 03:52:20,943 INFO L93 Difference]: Finished difference Result 2361 states and 3521 transitions. [2021-12-28 03:52:20,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-28 03:52:20,943 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 13 [2021-12-28 03:52:20,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 03:52:20,963 INFO L225 Difference]: With dead ends: 2361 [2021-12-28 03:52:20,963 INFO L226 Difference]: Without dead ends: 2358 [2021-12-28 03:52:20,966 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-28 03:52:20,968 INFO L933 BasicCegarLoop]: 2593 mSDtfsCounter, 4038 mSDsluCounter, 379 mSDsCounter, 0 mSdLazyCounter, 1415 mSolverCounterSat, 1087 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4235 SdHoareTripleChecker+Valid, 2972 SdHoareTripleChecker+Invalid, 2502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1087 IncrementalHoareTripleChecker+Valid, 1415 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2021-12-28 03:52:20,968 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4235 Valid, 2972 Invalid, 2502 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1087 Valid, 1415 Invalid, 0 Unknown, 0 Unchecked, 6.5s Time] [2021-12-28 03:52:20,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2358 states. [2021-12-28 03:52:21,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2358 to 1895. [2021-12-28 03:52:21,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1895 states, 1391 states have (on average 1.3867721063982745) internal successors, (1929), 1411 states have internal predecessors, (1929), 392 states have call successors, (392), 113 states have call predecessors, (392), 111 states have return successors, (382), 381 states have call predecessors, (382), 382 states have call successors, (382) [2021-12-28 03:52:21,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1895 states to 1895 states and 2703 transitions. [2021-12-28 03:52:21,082 INFO L78 Accepts]: Start accepts. Automaton has 1895 states and 2703 transitions. Word has length 13 [2021-12-28 03:52:21,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 03:52:21,082 INFO L470 AbstractCegarLoop]: Abstraction has 1895 states and 2703 transitions. [2021-12-28 03:52:21,082 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-28 03:52:21,083 INFO L276 IsEmpty]: Start isEmpty. Operand 1895 states and 2703 transitions. [2021-12-28 03:52:21,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-12-28 03:52:21,083 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 03:52:21,084 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 03:52:21,085 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-28 03:52:21,085 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 03:52:21,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:52:21,093 INFO L85 PathProgramCache]: Analyzing trace with hash -1270297853, now seen corresponding path program 1 times [2021-12-28 03:52:21,093 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:52:21,094 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762504017] [2021-12-28 03:52:21,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:52:21,094 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:52:21,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:52:22,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 03:52:22,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:52:22,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 03:52:22,279 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:52:22,280 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762504017] [2021-12-28 03:52:22,282 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [762504017] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 03:52:22,283 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 03:52:22,283 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-28 03:52:22,286 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062489884] [2021-12-28 03:52:22,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 03:52:22,287 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-28 03:52:22,288 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:52:22,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-28 03:52:22,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-28 03:52:22,290 INFO L87 Difference]: Start difference. First operand 1895 states and 2703 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-28 03:52:23,675 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 03:52:28,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 03:52:28,207 INFO L93 Difference]: Finished difference Result 2360 states and 3519 transitions. [2021-12-28 03:52:28,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-28 03:52:28,208 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14 [2021-12-28 03:52:28,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 03:52:28,223 INFO L225 Difference]: With dead ends: 2360 [2021-12-28 03:52:28,223 INFO L226 Difference]: Without dead ends: 2357 [2021-12-28 03:52:28,226 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-28 03:52:28,227 INFO L933 BasicCegarLoop]: 2622 mSDtfsCounter, 4020 mSDsluCounter, 379 mSDsCounter, 0 mSdLazyCounter, 1436 mSolverCounterSat, 1063 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4207 SdHoareTripleChecker+Valid, 3001 SdHoareTripleChecker+Invalid, 2499 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1063 IncrementalHoareTripleChecker+Valid, 1436 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2021-12-28 03:52:28,227 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4207 Valid, 3001 Invalid, 2499 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1063 Valid, 1436 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2021-12-28 03:52:28,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2357 states. [2021-12-28 03:52:28,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2357 to 1894. [2021-12-28 03:52:28,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1894 states, 1391 states have (on average 1.3860531991373113) internal successors, (1928), 1410 states have internal predecessors, (1928), 391 states have call successors, (391), 113 states have call predecessors, (391), 111 states have return successors, (382), 381 states have call predecessors, (382), 382 states have call successors, (382) [2021-12-28 03:52:28,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1894 states to 1894 states and 2701 transitions. [2021-12-28 03:52:28,319 INFO L78 Accepts]: Start accepts. Automaton has 1894 states and 2701 transitions. Word has length 14 [2021-12-28 03:52:28,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 03:52:28,320 INFO L470 AbstractCegarLoop]: Abstraction has 1894 states and 2701 transitions. [2021-12-28 03:52:28,320 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-28 03:52:28,320 INFO L276 IsEmpty]: Start isEmpty. Operand 1894 states and 2701 transitions. [2021-12-28 03:52:28,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-12-28 03:52:28,321 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 03:52:28,321 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 03:52:28,321 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-28 03:52:28,321 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 03:52:28,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:52:28,322 INFO L85 PathProgramCache]: Analyzing trace with hash -726019525, now seen corresponding path program 1 times [2021-12-28 03:52:28,322 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:52:28,322 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389592142] [2021-12-28 03:52:28,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:52:28,323 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:52:28,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:52:29,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 03:52:29,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:52:29,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 03:52:29,382 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:52:29,382 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389592142] [2021-12-28 03:52:29,383 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [389592142] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 03:52:29,383 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 03:52:29,383 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-28 03:52:29,383 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961570258] [2021-12-28 03:52:29,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 03:52:29,384 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-28 03:52:29,384 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:52:29,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-28 03:52:29,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-28 03:52:29,385 INFO L87 Difference]: Start difference. First operand 1894 states and 2701 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-28 03:52:30,404 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []