./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 c3fed411 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-consumption/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-tmp.no-commuhash-c3fed41 [2021-12-16 03:53:21,142 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-16 03:53:21,144 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-16 03:53:21,207 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-16 03:53:21,209 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-16 03:53:21,213 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-16 03:53:21,215 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-16 03:53:21,222 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-16 03:53:21,224 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-16 03:53:21,229 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-16 03:53:21,230 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-16 03:53:21,231 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-16 03:53:21,232 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-16 03:53:21,234 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-16 03:53:21,235 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-16 03:53:21,237 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-16 03:53:21,240 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-16 03:53:21,241 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-16 03:53:21,242 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-16 03:53:21,246 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-16 03:53:21,250 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-16 03:53:21,251 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-16 03:53:21,252 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-16 03:53:21,253 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-16 03:53:21,255 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-16 03:53:21,257 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-16 03:53:21,257 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-16 03:53:21,258 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-16 03:53:21,259 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-16 03:53:21,259 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-16 03:53:21,260 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-16 03:53:21,260 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-16 03:53:21,262 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-16 03:53:21,263 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-16 03:53:21,264 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-16 03:53:21,264 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-16 03:53:21,265 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-16 03:53:21,265 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-16 03:53:21,265 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-16 03:53:21,266 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-16 03:53:21,266 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-16 03:53:21,267 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-16 03:53:21,302 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-16 03:53:21,302 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-16 03:53:21,303 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-16 03:53:21,303 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-16 03:53:21,304 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-16 03:53:21,304 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-16 03:53:21,304 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-16 03:53:21,305 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-16 03:53:21,305 INFO L138 SettingsManager]: * Use SBE=true [2021-12-16 03:53:21,305 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-16 03:53:21,306 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-16 03:53:21,306 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-16 03:53:21,306 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-16 03:53:21,306 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-16 03:53:21,307 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-16 03:53:21,307 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-16 03:53:21,307 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-16 03:53:21,307 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-16 03:53:21,307 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-16 03:53:21,307 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-16 03:53:21,308 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-16 03:53:21,308 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-16 03:53:21,308 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-16 03:53:21,308 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-16 03:53:21,308 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-16 03:53:21,309 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-16 03:53:21,309 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-16 03:53:21,310 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-16 03:53:21,310 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-16 03:53:21,311 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-16 03:53:21,311 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-16 03:53:21,311 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 213c19133f8e1eb8e04c1430c89bd3923e29e833639b74dc68815899bbf3f9fa [2021-12-16 03:53:21,522 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-16 03:53:21,554 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-16 03:53:21,558 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-16 03:53:21,559 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-16 03:53:21,559 INFO L275 PluginConnector]: CDTParser initialized [2021-12-16 03:53:21,561 INFO L432 ainManager$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 [2021-12-16 03:53:21,620 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/46515b262/245df2183f0a4ab89a83d905684a57fa/FLAG9a19339f7 [2021-12-16 03:53:22,462 INFO L306 CDTParser]: Found 1 translation units. [2021-12-16 03:53:22,463 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 [2021-12-16 03:53:22,535 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/46515b262/245df2183f0a4ab89a83d905684a57fa/FLAG9a19339f7 [2021-12-16 03:53:22,636 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/46515b262/245df2183f0a4ab89a83d905684a57fa [2021-12-16 03:53:22,638 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-16 03:53:22,641 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-16 03:53:22,642 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-16 03:53:22,642 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-16 03:53:22,645 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-16 03:53:22,645 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 03:53:22" (1/1) ... [2021-12-16 03:53:22,647 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1474d469 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:53:22, skipping insertion in model container [2021-12-16 03:53:22,647 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 03:53:22" (1/1) ... [2021-12-16 03:53:22,652 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-16 03:53:22,799 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-16 03:53:26,468 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] [2021-12-16 03:53:26,706 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 03:53:26,867 INFO L203 MainTranslator]: Completed pre-run [2021-12-16 03:53:27,628 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] [2021-12-16 03:53:27,638 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 03:53:27,849 INFO L208 MainTranslator]: Completed translation [2021-12-16 03:53:27,849 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:53:27 WrapperNode [2021-12-16 03:53:27,849 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-16 03:53:27,850 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-16 03:53:27,851 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-16 03:53:27,851 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-16 03:53:27,860 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:53:27" (1/1) ... [2021-12-16 03:53:28,131 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:53:27" (1/1) ... [2021-12-16 03:53:28,533 INFO L137 Inliner]: procedures = 457, calls = 15318, calls flagged for inlining = 154, calls inlined = 76, statements flattened = 12878 [2021-12-16 03:53:28,534 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-16 03:53:28,535 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-16 03:53:28,535 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-16 03:53:28,535 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-16 03:53:28,544 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:53:27" (1/1) ... [2021-12-16 03:53:28,544 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:53:27" (1/1) ... [2021-12-16 03:53:28,663 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:53:27" (1/1) ... [2021-12-16 03:53:28,664 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:53:27" (1/1) ... [2021-12-16 03:53:29,011 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:53:27" (1/1) ... [2021-12-16 03:53:29,049 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:53:27" (1/1) ... [2021-12-16 03:53:29,104 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:53:27" (1/1) ... [2021-12-16 03:53:29,166 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-16 03:53:29,168 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-16 03:53:29,168 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-16 03:53:29,168 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-16 03:53:29,169 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:53:27" (1/1) ... [2021-12-16 03:53:29,176 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-16 03:53:29,184 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 03:53:29,196 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) [2021-12-16 03:53:29,222 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 [2021-12-16 03:53:29,235 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2021-12-16 03:53:29,235 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2021-12-16 03:53:29,236 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_write_regs [2021-12-16 03:53:29,236 INFO L138 BoogieDeclarations]: Found implementation of procedure em28xx_write_regs [2021-12-16 03:53:29,236 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_capture_area_set [2021-12-16 03:53:29,236 INFO L138 BoogieDeclarations]: Found implementation of procedure em28xx_capture_area_set [2021-12-16 03:53:29,236 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_alloc_urbs [2021-12-16 03:53:29,236 INFO L138 BoogieDeclarations]: Found implementation of procedure em28xx_alloc_urbs [2021-12-16 03:53:29,236 INFO L130 BoogieDeclarations]: Found specification of procedure usb_put_dev [2021-12-16 03:53:29,237 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_put_dev [2021-12-16 03:53:29,237 INFO L130 BoogieDeclarations]: Found specification of procedure vb2_fop_mmap [2021-12-16 03:53:29,237 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-16 03:53:29,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-16 03:53:29,237 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_stop_streaming [2021-12-16 03:53:29,237 INFO L138 BoogieDeclarations]: Found implementation of procedure em28xx_stop_streaming [2021-12-16 03:53:29,238 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_device_unregister [2021-12-16 03:53:29,238 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_device_unregister [2021-12-16 03:53:29,238 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2021-12-16 03:53:29,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2021-12-16 03:53:29,238 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-12-16 03:53:29,238 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-12-16 03:53:29,238 INFO L130 BoogieDeclarations]: Found specification of procedure res_free [2021-12-16 03:53:29,239 INFO L138 BoogieDeclarations]: Found implementation of procedure res_free [2021-12-16 03:53:29,239 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-16 03:53:29,239 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-16 03:53:29,239 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_write_ac97 [2021-12-16 03:53:29,239 INFO L138 BoogieDeclarations]: Found implementation of procedure em28xx_write_ac97 [2021-12-16 03:53:29,239 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock_of_em28xx [2021-12-16 03:53:29,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock_of_em28xx [2021-12-16 03:53:29,240 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_handler_free [2021-12-16 03:53:29,240 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_handler_free [2021-12-16 03:53:29,240 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-12-16 03:53:29,240 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-12-16 03:53:29,240 INFO L130 BoogieDeclarations]: Found specification of procedure arch_irqs_disabled_flags [2021-12-16 03:53:29,241 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_irqs_disabled_flags [2021-12-16 03:53:29,241 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_g_frequency [2021-12-16 03:53:29,241 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_g_frequency [2021-12-16 03:53:29,242 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-16 03:53:29,242 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-16 03:53:29,242 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_g_register [2021-12-16 03:53:29,242 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_g_register [2021-12-16 03:53:29,242 INFO L130 BoogieDeclarations]: Found specification of procedure video_devdata [2021-12-16 03:53:29,242 INFO L138 BoogieDeclarations]: Found implementation of procedure video_devdata [2021-12-16 03:53:29,243 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-16 03:53:29,243 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_vbi_supported [2021-12-16 03:53:29,243 INFO L138 BoogieDeclarations]: Found implementation of procedure em28xx_vbi_supported [2021-12-16 03:53:29,243 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2021-12-16 03:53:29,243 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2021-12-16 03:53:29,243 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-12-16 03:53:29,244 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-12-16 03:53:29,244 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_copy_video [2021-12-16 03:53:29,244 INFO L138 BoogieDeclarations]: Found implementation of procedure em28xx_copy_video [2021-12-16 03:53:29,244 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_gpio_set [2021-12-16 03:53:29,245 INFO L138 BoogieDeclarations]: Found implementation of procedure em28xx_gpio_set [2021-12-16 03:53:29,245 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_g_chip_ident [2021-12-16 03:53:29,245 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_g_chip_ident [2021-12-16 03:53:29,246 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~v4l2_std_id~0~TO~int [2021-12-16 03:53:29,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~v4l2_std_id~0~TO~int [2021-12-16 03:53:29,246 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_try_fmt_vid_cap [2021-12-16 03:53:29,247 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_try_fmt_vid_cap [2021-12-16 03:53:29,247 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_read_reg_req [2021-12-16 03:53:29,247 INFO L138 BoogieDeclarations]: Found implementation of procedure em28xx_read_reg_req [2021-12-16 03:53:29,247 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-16 03:53:29,247 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_ctrl_urb_lock_of_em28xx [2021-12-16 03:53:29,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_ctrl_urb_lock_of_em28xx [2021-12-16 03:53:29,248 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2021-12-16 03:53:29,248 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2021-12-16 03:53:29,248 INFO L130 BoogieDeclarations]: Found specification of procedure vb2_buffer_done [2021-12-16 03:53:29,248 INFO L138 BoogieDeclarations]: Found implementation of procedure vb2_buffer_done [2021-12-16 03:53:29,248 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2021-12-16 03:53:29,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2021-12-16 03:53:29,249 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_ctrl_urb_lock_of_em28xx [2021-12-16 03:53:29,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_ctrl_urb_lock_of_em28xx [2021-12-16 03:53:29,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-16 03:53:29,250 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~X~~u32~0~X~~u32~0~TO~int [2021-12-16 03:53:29,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~X~~u32~0~X~~u32~0~TO~int [2021-12-16 03:53:29,250 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2021-12-16 03:53:29,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2021-12-16 03:53:29,250 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-16 03:53:29,250 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_i2c_unregister [2021-12-16 03:53:29,251 INFO L138 BoogieDeclarations]: Found implementation of procedure em28xx_i2c_unregister [2021-12-16 03:53:29,251 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-16 03:53:29,251 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-16 03:53:29,251 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2021-12-16 03:53:29,251 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2021-12-16 03:53:29,251 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_write_reg [2021-12-16 03:53:29,251 INFO L138 BoogieDeclarations]: Found implementation of procedure em28xx_write_reg [2021-12-16 03:53:29,252 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2021-12-16 03:53:29,252 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2021-12-16 03:53:29,252 INFO L130 BoogieDeclarations]: Found specification of procedure video_is_registered [2021-12-16 03:53:29,253 INFO L138 BoogieDeclarations]: Found implementation of procedure video_is_registered [2021-12-16 03:53:29,253 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_subscribe_event [2021-12-16 03:53:29,253 INFO L130 BoogieDeclarations]: Found specification of procedure video_unregister_device [2021-12-16 03:53:29,253 INFO L138 BoogieDeclarations]: Found implementation of procedure video_unregister_device [2021-12-16 03:53:29,254 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-16 03:53:29,254 INFO L130 BoogieDeclarations]: Found specification of procedure video_mux [2021-12-16 03:53:29,254 INFO L138 BoogieDeclarations]: Found implementation of procedure video_mux [2021-12-16 03:53:29,254 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-16 03:53:29,254 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-16 03:53:29,255 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-16 03:53:29,255 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_audio_analog_set [2021-12-16 03:53:29,255 INFO L138 BoogieDeclarations]: Found implementation of procedure em28xx_audio_analog_set [2021-12-16 03:53:29,256 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-12-16 03:53:29,256 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-12-16 03:53:29,256 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2021-12-16 03:53:29,256 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2021-12-16 03:53:29,256 INFO L130 BoogieDeclarations]: Found specification of procedure buffer_prepare [2021-12-16 03:53:29,256 INFO L138 BoogieDeclarations]: Found implementation of procedure buffer_prepare [2021-12-16 03:53:29,257 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_start_analog_streaming [2021-12-16 03:53:29,257 INFO L138 BoogieDeclarations]: Found implementation of procedure em28xx_start_analog_streaming [2021-12-16 03:53:29,257 INFO L130 BoogieDeclarations]: Found specification of procedure format_by_fourcc [2021-12-16 03:53:29,257 INFO L138 BoogieDeclarations]: Found implementation of procedure format_by_fourcc [2021-12-16 03:53:29,257 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_read_reg [2021-12-16 03:53:29,258 INFO L138 BoogieDeclarations]: Found implementation of procedure em28xx_read_reg [2021-12-16 03:53:29,258 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_reg_len [2021-12-16 03:53:29,258 INFO L138 BoogieDeclarations]: Found implementation of procedure em28xx_reg_len [2021-12-16 03:53:29,258 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2021-12-16 03:53:29,259 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2021-12-16 03:53:29,259 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_event_unsubscribe [2021-12-16 03:53:29,261 INFO L130 BoogieDeclarations]: Found specification of procedure get_ressource [2021-12-16 03:53:29,261 INFO L138 BoogieDeclarations]: Found implementation of procedure get_ressource [2021-12-16 03:53:29,261 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_save_flags [2021-12-16 03:53:29,262 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_save_flags [2021-12-16 03:53:29,262 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_set_outfmt [2021-12-16 03:53:29,263 INFO L138 BoogieDeclarations]: Found implementation of procedure em28xx_set_outfmt [2021-12-16 03:53:29,263 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-16 03:53:29,263 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-16 03:53:29,263 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2021-12-16 03:53:29,267 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2021-12-16 03:53:29,267 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-12-16 03:53:29,267 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-12-16 03:53:29,268 INFO L130 BoogieDeclarations]: Found specification of procedure vb2_set_plane_payload [2021-12-16 03:53:29,268 INFO L138 BoogieDeclarations]: Found implementation of procedure vb2_set_plane_payload [2021-12-16 03:53:29,268 INFO L130 BoogieDeclarations]: Found specification of procedure vb2_fop_poll [2021-12-16 03:53:29,268 INFO L130 BoogieDeclarations]: Found specification of procedure usb_translate_errors [2021-12-16 03:53:29,268 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_translate_errors [2021-12-16 03:53:29,268 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-16 03:53:29,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-16 03:53:29,269 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_interface [2021-12-16 03:53:29,269 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_interface [2021-12-16 03:53:29,269 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_v4l2_close [2021-12-16 03:53:29,269 INFO L138 BoogieDeclarations]: Found implementation of procedure em28xx_v4l2_close [2021-12-16 03:53:29,269 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_read_reg_req_len [2021-12-16 03:53:29,269 INFO L138 BoogieDeclarations]: Found implementation of procedure em28xx_read_reg_req_len [2021-12-16 03:53:29,269 INFO L130 BoogieDeclarations]: Found specification of procedure video_device_release [2021-12-16 03:53:29,270 INFO L138 BoogieDeclarations]: Found implementation of procedure video_device_release [2021-12-16 03:53:29,270 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_write_reg_bits [2021-12-16 03:53:29,270 INFO L138 BoogieDeclarations]: Found implementation of procedure em28xx_write_reg_bits [2021-12-16 03:53:29,270 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-16 03:53:29,270 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-16 03:53:29,270 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-16 03:53:29,270 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-16 03:53:29,271 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~TO~int [2021-12-16 03:53:29,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~TO~int [2021-12-16 03:53:29,271 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_s_ctrl [2021-12-16 03:53:29,271 INFO L138 BoogieDeclarations]: Found implementation of procedure em28xx_s_ctrl [2021-12-16 03:53:29,271 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-16 03:53:29,271 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-16 03:53:29,271 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_s_frequency [2021-12-16 03:53:29,272 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_s_frequency [2021-12-16 03:53:29,272 INFO L130 BoogieDeclarations]: Found specification of procedure vbi_buffer_prepare [2021-12-16 03:53:29,272 INFO L138 BoogieDeclarations]: Found implementation of procedure vbi_buffer_prepare [2021-12-16 03:53:29,272 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_release_resources [2021-12-16 03:53:29,272 INFO L138 BoogieDeclarations]: Found implementation of procedure em28xx_release_resources [2021-12-16 03:53:29,272 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2021-12-16 03:53:29,272 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2021-12-16 03:53:29,273 INFO L130 BoogieDeclarations]: Found specification of procedure video_drvdata [2021-12-16 03:53:29,273 INFO L138 BoogieDeclarations]: Found implementation of procedure video_drvdata [2021-12-16 03:53:29,273 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_em28xx [2021-12-16 03:53:29,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_em28xx [2021-12-16 03:53:29,273 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_write_regs_req [2021-12-16 03:53:29,273 INFO L138 BoogieDeclarations]: Found implementation of procedure em28xx_write_regs_req [2021-12-16 03:53:29,273 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-16 03:53:29,274 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unlink_urb [2021-12-16 03:53:29,274 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unlink_urb [2021-12-16 03:53:29,274 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-16 03:53:29,274 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_g_chip_info [2021-12-16 03:53:29,274 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_g_chip_info [2021-12-16 03:53:29,274 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_set_video_format [2021-12-16 03:53:29,274 INFO L138 BoogieDeclarations]: Found implementation of procedure em28xx_set_video_format [2021-12-16 03:53:29,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-16 03:53:29,275 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_set_mode [2021-12-16 03:53:29,275 INFO L138 BoogieDeclarations]: Found implementation of procedure em28xx_set_mode [2021-12-16 03:53:29,275 INFO L130 BoogieDeclarations]: Found specification of procedure video_device_node_name [2021-12-16 03:53:29,275 INFO L138 BoogieDeclarations]: Found implementation of procedure video_device_node_name [2021-12-16 03:53:29,275 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-12-16 03:53:29,275 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-12-16 03:53:29,275 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-12-16 03:53:29,276 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-12-16 03:53:29,276 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_resolution_set [2021-12-16 03:53:29,276 INFO L138 BoogieDeclarations]: Found implementation of procedure em28xx_resolution_set [2021-12-16 03:53:29,276 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2021-12-16 03:53:29,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2021-12-16 03:53:29,276 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_is_ac97_ready [2021-12-16 03:53:29,276 INFO L138 BoogieDeclarations]: Found implementation of procedure em28xx_is_ac97_ready [2021-12-16 03:53:29,277 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2021-12-16 03:53:29,277 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2021-12-16 03:53:29,277 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_querycap [2021-12-16 03:53:29,277 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_querycap [2021-12-16 03:53:29,277 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_v4l2_open [2021-12-16 03:53:29,277 INFO L138 BoogieDeclarations]: Found implementation of procedure em28xx_v4l2_open [2021-12-16 03:53:29,277 INFO L130 BoogieDeclarations]: Found specification of procedure vb2_plane_size [2021-12-16 03:53:29,278 INFO L138 BoogieDeclarations]: Found implementation of procedure vb2_plane_size [2021-12-16 03:53:29,278 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2021-12-16 03:53:29,278 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2021-12-16 03:53:29,278 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u8~0~X~~u16~0~X~$Pointer$~X~int~TO~int [2021-12-16 03:53:29,278 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u8~0~X~~u16~0~X~$Pointer$~X~int~TO~int [2021-12-16 03:53:29,279 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-16 03:53:29,279 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-16 03:53:29,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-16 03:53:29,279 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-16 03:53:29,279 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-16 03:53:29,279 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_uninit_usb_xfer [2021-12-16 03:53:29,280 INFO L138 BoogieDeclarations]: Found implementation of procedure em28xx_uninit_usb_xfer [2021-12-16 03:53:29,280 INFO L130 BoogieDeclarations]: Found specification of procedure finish_field_prepare_next [2021-12-16 03:53:29,280 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_field_prepare_next [2021-12-16 03:53:29,280 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_read_ac97 [2021-12-16 03:53:29,280 INFO L138 BoogieDeclarations]: Found implementation of procedure em28xx_read_ac97 [2021-12-16 03:53:29,280 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_wake_i2c [2021-12-16 03:53:29,280 INFO L138 BoogieDeclarations]: Found implementation of procedure em28xx_wake_i2c [2021-12-16 03:53:29,281 INFO L130 BoogieDeclarations]: Found specification of procedure size_to_scale [2021-12-16 03:53:29,281 INFO L138 BoogieDeclarations]: Found implementation of procedure size_to_scale [2021-12-16 03:53:29,281 INFO L130 BoogieDeclarations]: Found specification of procedure vb2_get_drv_priv [2021-12-16 03:53:29,281 INFO L138 BoogieDeclarations]: Found implementation of procedure vb2_get_drv_priv [2021-12-16 03:53:29,281 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_s_register [2021-12-16 03:53:29,281 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_s_register [2021-12-16 03:53:29,281 INFO L130 BoogieDeclarations]: Found specification of procedure scale_to_size [2021-12-16 03:53:29,282 INFO L138 BoogieDeclarations]: Found implementation of procedure scale_to_size [2021-12-16 03:53:29,282 INFO L130 BoogieDeclarations]: Found specification of procedure print_err_status [2021-12-16 03:53:29,282 INFO L138 BoogieDeclarations]: Found implementation of procedure print_err_status [2021-12-16 03:53:29,282 INFO L130 BoogieDeclarations]: Found specification of procedure norm_maxw [2021-12-16 03:53:29,282 INFO L138 BoogieDeclarations]: Found implementation of procedure norm_maxw [2021-12-16 03:53:29,282 INFO L130 BoogieDeclarations]: Found specification of procedure norm_maxh [2021-12-16 03:53:29,282 INFO L138 BoogieDeclarations]: Found implementation of procedure norm_maxh [2021-12-16 03:53:29,283 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-12-16 03:53:29,283 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-12-16 03:53:29,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-16 03:53:29,283 INFO L130 BoogieDeclarations]: Found specification of procedure vb2_plane_vaddr [2021-12-16 03:53:29,283 INFO L138 BoogieDeclarations]: Found implementation of procedure vb2_plane_vaddr [2021-12-16 03:53:29,283 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-12-16 03:53:29,283 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-12-16 03:53:29,284 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_capture_start [2021-12-16 03:53:29,284 INFO L138 BoogieDeclarations]: Found implementation of procedure em28xx_capture_start [2021-12-16 03:53:30,171 INFO L236 CfgBuilder]: Building ICFG [2021-12-16 03:53:30,174 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-16 03:53:43,289 INFO L277 CfgBuilder]: Performing block encoding [2021-12-16 03:53:43,326 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-16 03:53:43,326 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-16 03:53:43,330 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 03:53:43 BoogieIcfgContainer [2021-12-16 03:53:43,330 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-16 03:53:43,332 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-16 03:53:43,332 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-16 03:53:43,335 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-16 03:53:43,336 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 03:53:22" (1/3) ... [2021-12-16 03:53:43,336 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@561c8e87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 03:53:43, skipping insertion in model container [2021-12-16 03:53:43,337 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:53:27" (2/3) ... [2021-12-16 03:53:43,339 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@561c8e87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 03:53:43, skipping insertion in model container [2021-12-16 03:53:43,339 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 03:53:43" (3/3) ... [2021-12-16 03:53:43,340 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.8-rc1-32_7a-drivers--media--usb--em28xx--em28xx.ko-ldv_main0.cil.out.i [2021-12-16 03:53:43,344 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-16 03:53:43,344 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-16 03:53:43,404 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-16 03:53:43,414 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 [2021-12-16 03:53:43,415 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-16 03:53:43,470 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) [2021-12-16 03:53:43,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-12-16 03:53:43,474 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 03:53:43,474 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 03:53:43,475 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 03:53:43,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:53:43,480 INFO L85 PathProgramCache]: Analyzing trace with hash 284761344, now seen corresponding path program 1 times [2021-12-16 03:53:43,487 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 03:53:43,487 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565846563] [2021-12-16 03:53:43,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:53:43,489 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 03:53:44,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:53:45,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 03:53:45,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:53:45,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 03:53:45,499 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 03:53:45,500 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565846563] [2021-12-16 03:53:45,500 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [565846563] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 03:53:45,500 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 03:53:45,500 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-16 03:53:45,502 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027481504] [2021-12-16 03:53:45,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:53:45,505 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-16 03:53:45,505 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 03:53:45,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-16 03:53:45,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-16 03:53:45,539 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) [2021-12-16 03:53:47,264 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-16 03:53:48,640 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-16 03:53:51,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 03:53:51,328 INFO L93 Difference]: Finished difference Result 3838 states and 5681 transitions. [2021-12-16 03:53:51,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-16 03:53:51,332 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 [2021-12-16 03:53:51,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 03:53:51,361 INFO L225 Difference]: With dead ends: 3838 [2021-12-16 03:53:51,361 INFO L226 Difference]: Without dead ends: 1936 [2021-12-16 03:53:51,382 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-16 03:53:51,385 INFO L933 BasicCegarLoop]: 2339 mSDtfsCounter, 3569 mSDsluCounter, 408 mSDsCounter, 0 mSdLazyCounter, 683 mSolverCounterSat, 1146 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3681 SdHoareTripleChecker+Valid, 2747 SdHoareTripleChecker+Invalid, 1829 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1146 IncrementalHoareTripleChecker+Valid, 683 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2021-12-16 03:53:51,387 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3681 Valid, 2747 Invalid, 1829 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1146 Valid, 683 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2021-12-16 03:53:51,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1936 states. [2021-12-16 03:53:51,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1936 to 1896. [2021-12-16 03:53:51,547 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) [2021-12-16 03:53:51,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1896 states to 1896 states and 2705 transitions. [2021-12-16 03:53:51,561 INFO L78 Accepts]: Start accepts. Automaton has 1896 states and 2705 transitions. Word has length 12 [2021-12-16 03:53:51,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 03:53:51,562 INFO L470 AbstractCegarLoop]: Abstraction has 1896 states and 2705 transitions. [2021-12-16 03:53:51,562 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) [2021-12-16 03:53:51,562 INFO L276 IsEmpty]: Start isEmpty. Operand 1896 states and 2705 transitions. [2021-12-16 03:53:51,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-12-16 03:53:51,563 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 03:53:51,563 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 03:53:51,564 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-16 03:53:51,564 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 03:53:51,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:53:51,565 INFO L85 PathProgramCache]: Analyzing trace with hash 236165592, now seen corresponding path program 1 times [2021-12-16 03:53:51,565 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 03:53:51,565 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322108802] [2021-12-16 03:53:51,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:53:51,565 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 03:53:52,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:53:52,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 03:53:52,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:53:52,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 03:53:52,852 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 03:53:52,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [322108802] [2021-12-16 03:53:52,852 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [322108802] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 03:53:52,853 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 03:53:52,853 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-16 03:53:52,853 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203831429] [2021-12-16 03:53:52,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:53:52,855 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-16 03:53:52,855 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 03:53:52,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-16 03:53:52,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-16 03:53:52,856 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) [2021-12-16 03:53:54,614 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-16 03:53:55,972 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-16 03:53:59,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 03:53:59,711 INFO L93 Difference]: Finished difference Result 2361 states and 3521 transitions. [2021-12-16 03:53:59,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-16 03:53:59,712 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 [2021-12-16 03:53:59,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 03:53:59,727 INFO L225 Difference]: With dead ends: 2361 [2021-12-16 03:53:59,728 INFO L226 Difference]: Without dead ends: 2358 [2021-12-16 03:53:59,730 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-16 03:53:59,731 INFO L933 BasicCegarLoop]: 2569 mSDtfsCounter, 4056 mSDsluCounter, 379 mSDsCounter, 0 mSdLazyCounter, 1408 mSolverCounterSat, 1094 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4257 SdHoareTripleChecker+Valid, 2948 SdHoareTripleChecker+Invalid, 2502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1094 IncrementalHoareTripleChecker+Valid, 1408 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2021-12-16 03:53:59,731 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4257 Valid, 2948 Invalid, 2502 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1094 Valid, 1408 Invalid, 0 Unknown, 0 Unchecked, 6.6s Time] [2021-12-16 03:53:59,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2358 states. [2021-12-16 03:53:59,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2358 to 1895. [2021-12-16 03:53:59,817 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) [2021-12-16 03:53:59,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1895 states to 1895 states and 2703 transitions. [2021-12-16 03:53:59,826 INFO L78 Accepts]: Start accepts. Automaton has 1895 states and 2703 transitions. Word has length 13 [2021-12-16 03:53:59,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 03:53:59,827 INFO L470 AbstractCegarLoop]: Abstraction has 1895 states and 2703 transitions. [2021-12-16 03:53:59,828 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) [2021-12-16 03:53:59,828 INFO L276 IsEmpty]: Start isEmpty. Operand 1895 states and 2703 transitions. [2021-12-16 03:53:59,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-12-16 03:53:59,829 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 03:53:59,829 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 03:53:59,829 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-16 03:53:59,829 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 03:53:59,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:53:59,837 INFO L85 PathProgramCache]: Analyzing trace with hash -1270297853, now seen corresponding path program 1 times [2021-12-16 03:53:59,837 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 03:53:59,837 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083076940] [2021-12-16 03:53:59,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:53:59,838 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 03:54:00,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:00,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 03:54:00,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:00,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 03:54:00,855 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 03:54:00,855 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083076940] [2021-12-16 03:54:00,855 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1083076940] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 03:54:00,855 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 03:54:00,855 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-16 03:54:00,856 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082889066] [2021-12-16 03:54:00,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:54:00,856 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-16 03:54:00,856 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 03:54:00,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-16 03:54:00,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-16 03:54:00,857 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) [2021-12-16 03:54:02,421 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-16 03:54:03,863 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-16 03:54:07,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 03:54:07,645 INFO L93 Difference]: Finished difference Result 2360 states and 3519 transitions. [2021-12-16 03:54:07,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-16 03:54:07,646 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 [2021-12-16 03:54:07,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 03:54:07,658 INFO L225 Difference]: With dead ends: 2360 [2021-12-16 03:54:07,659 INFO L226 Difference]: Without dead ends: 2357 [2021-12-16 03:54:07,660 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-16 03:54:07,661 INFO L933 BasicCegarLoop]: 2593 mSDtfsCounter, 4040 mSDsluCounter, 379 mSDsCounter, 0 mSdLazyCounter, 1431 mSolverCounterSat, 1071 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4232 SdHoareTripleChecker+Valid, 2972 SdHoareTripleChecker+Invalid, 2502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1071 IncrementalHoareTripleChecker+Valid, 1431 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2021-12-16 03:54:07,661 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4232 Valid, 2972 Invalid, 2502 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1071 Valid, 1431 Invalid, 0 Unknown, 0 Unchecked, 6.6s Time] [2021-12-16 03:54:07,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2357 states. [2021-12-16 03:54:07,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2357 to 1894. [2021-12-16 03:54:07,733 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) [2021-12-16 03:54:07,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1894 states to 1894 states and 2701 transitions. [2021-12-16 03:54:07,742 INFO L78 Accepts]: Start accepts. Automaton has 1894 states and 2701 transitions. Word has length 14 [2021-12-16 03:54:07,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 03:54:07,743 INFO L470 AbstractCegarLoop]: Abstraction has 1894 states and 2701 transitions. [2021-12-16 03:54:07,743 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) [2021-12-16 03:54:07,743 INFO L276 IsEmpty]: Start isEmpty. Operand 1894 states and 2701 transitions. [2021-12-16 03:54:07,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-12-16 03:54:07,744 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 03:54:07,744 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 03:54:07,744 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-16 03:54:07,744 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 03:54:07,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:54:07,745 INFO L85 PathProgramCache]: Analyzing trace with hash -726019525, now seen corresponding path program 1 times [2021-12-16 03:54:07,745 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 03:54:07,746 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174409049] [2021-12-16 03:54:07,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:54:07,747 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 03:54:08,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:08,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 03:54:08,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:54:08,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 03:54:08,636 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 03:54:08,636 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174409049] [2021-12-16 03:54:08,636 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [174409049] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 03:54:08,637 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 03:54:08,637 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-16 03:54:08,637 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530554961] [2021-12-16 03:54:08,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:54:08,637 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-16 03:54:08,638 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 03:54:08,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-16 03:54:08,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-16 03:54:08,638 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) [2021-12-16 03:54:10,275 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-16 03:54:11,578 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []