./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--usb--serial--usbserial.ko-entry_point.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-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--usb--serial--usbserial.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash bf654a6a1eca45ac77a809162568fb8018795c05fa9eb6946186269d2e2c9c25 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ae00767 [2021-12-28 04:25:27,015 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-28 04:25:27,018 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-28 04:25:27,055 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-28 04:25:27,056 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-28 04:25:27,059 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-28 04:25:27,060 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-28 04:25:27,064 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-28 04:25:27,066 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-28 04:25:27,070 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-28 04:25:27,071 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-28 04:25:27,074 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-28 04:25:27,075 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-28 04:25:27,077 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-28 04:25:27,078 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-28 04:25:27,080 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-28 04:25:27,081 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-28 04:25:27,082 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-28 04:25:27,084 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-28 04:25:27,089 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-28 04:25:27,090 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-28 04:25:27,091 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-28 04:25:27,092 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-28 04:25:27,094 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-28 04:25:27,099 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-28 04:25:27,100 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-28 04:25:27,100 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-28 04:25:27,107 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-28 04:25:27,108 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-28 04:25:27,108 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-28 04:25:27,109 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-28 04:25:27,109 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-28 04:25:27,111 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-28 04:25:27,111 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-28 04:25:27,112 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-28 04:25:27,113 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-28 04:25:27,113 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-28 04:25:27,113 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-28 04:25:27,114 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-28 04:25:27,115 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-28 04:25:27,116 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-28 04:25:27,116 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-28 04:25:27,153 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-28 04:25:27,153 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-28 04:25:27,154 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-28 04:25:27,154 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-28 04:25:27,155 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-28 04:25:27,155 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-28 04:25:27,156 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-28 04:25:27,157 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-28 04:25:27,157 INFO L138 SettingsManager]: * Use SBE=true [2021-12-28 04:25:27,157 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-28 04:25:27,158 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-28 04:25:27,158 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-28 04:25:27,158 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-28 04:25:27,158 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-28 04:25:27,158 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-28 04:25:27,159 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-28 04:25:27,159 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-28 04:25:27,159 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-28 04:25:27,159 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-28 04:25:27,159 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-28 04:25:27,160 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-28 04:25:27,160 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 04:25:27,160 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-28 04:25:27,160 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-28 04:25:27,160 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-28 04:25:27,160 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-28 04:25:27,161 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-28 04:25:27,161 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-28 04:25:27,161 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-28 04:25:27,161 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-28 04:25:27,161 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bf654a6a1eca45ac77a809162568fb8018795c05fa9eb6946186269d2e2c9c25 [2021-12-28 04:25:27,446 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-28 04:25:27,465 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-28 04:25:27,468 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-28 04:25:27,469 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-28 04:25:27,469 INFO L275 PluginConnector]: CDTParser initialized [2021-12-28 04:25:27,470 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--usb--serial--usbserial.ko-entry_point.cil.out.i [2021-12-28 04:25:27,525 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b37770bf8/3f0a503d18e5444b8b50d8e8e5fce557/FLAG348b26ccd [2021-12-28 04:25:28,342 INFO L306 CDTParser]: Found 1 translation units. [2021-12-28 04:25:28,343 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--usb--serial--usbserial.ko-entry_point.cil.out.i [2021-12-28 04:25:28,390 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b37770bf8/3f0a503d18e5444b8b50d8e8e5fce557/FLAG348b26ccd [2021-12-28 04:25:28,861 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b37770bf8/3f0a503d18e5444b8b50d8e8e5fce557 [2021-12-28 04:25:28,863 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-28 04:25:28,865 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-28 04:25:28,866 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-28 04:25:28,866 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-28 04:25:28,869 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-28 04:25:28,870 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 04:25:28" (1/1) ... [2021-12-28 04:25:28,871 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c7961a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:25:28, skipping insertion in model container [2021-12-28 04:25:28,871 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 04:25:28" (1/1) ... [2021-12-28 04:25:28,878 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-28 04:25:29,033 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-28 04:25:30,876 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--usb--serial--usbserial.ko-entry_point.cil.out.i[323188,323201] [2021-12-28 04:25:31,036 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 04:25:31,111 INFO L203 MainTranslator]: Completed pre-run [2021-12-28 04:25:31,619 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--usb--serial--usbserial.ko-entry_point.cil.out.i[323188,323201] [2021-12-28 04:25:31,637 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 04:25:31,884 INFO L208 MainTranslator]: Completed translation [2021-12-28 04:25:31,885 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:25:31 WrapperNode [2021-12-28 04:25:31,886 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-28 04:25:31,887 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-28 04:25:31,888 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-28 04:25:31,888 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-28 04:25:31,893 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:25:31" (1/1) ... [2021-12-28 04:25:32,027 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:25:31" (1/1) ... [2021-12-28 04:25:32,302 INFO L137 Inliner]: procedures = 481, calls = 4096, calls flagged for inlining = 211, calls inlined = 204, statements flattened = 8088 [2021-12-28 04:25:32,305 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-28 04:25:32,306 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-28 04:25:32,306 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-28 04:25:32,306 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-28 04:25:32,313 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:25:31" (1/1) ... [2021-12-28 04:25:32,313 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:25:31" (1/1) ... [2021-12-28 04:25:32,385 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:25:31" (1/1) ... [2021-12-28 04:25:32,386 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:25:31" (1/1) ... [2021-12-28 04:25:32,554 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:25:31" (1/1) ... [2021-12-28 04:25:32,583 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:25:31" (1/1) ... [2021-12-28 04:25:32,617 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:25:31" (1/1) ... [2021-12-28 04:25:32,656 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-28 04:25:32,658 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-28 04:25:32,658 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-28 04:25:32,658 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-28 04:25:32,659 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:25:31" (1/1) ... [2021-12-28 04:25:32,664 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 04:25:32,673 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 04:25:32,689 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 04:25:32,707 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 04:25:32,722 INFO L130 BoogieDeclarations]: Found specification of procedure serial_proc_open [2021-12-28 04:25:32,722 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_proc_open [2021-12-28 04:25:32,722 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_throttle [2021-12-28 04:25:32,723 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_throttle [2021-12-28 04:25:32,723 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2021-12-28 04:25:32,723 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2021-12-28 04:25:32,723 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-28 04:25:32,723 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-28 04:25:32,723 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_int [2021-12-28 04:25:32,724 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_int [2021-12-28 04:25:32,724 INFO L130 BoogieDeclarations]: Found specification of procedure serial_port_dtr_rts [2021-12-28 04:25:32,724 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_port_dtr_rts [2021-12-28 04:25:32,724 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_device_remove [2021-12-28 04:25:32,724 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_device_remove [2021-12-28 04:25:32,724 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2021-12-28 04:25:32,724 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2021-12-28 04:25:32,725 INFO L130 BoogieDeclarations]: Found specification of procedure serial_chars_in_buffer [2021-12-28 04:25:32,725 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_chars_in_buffer [2021-12-28 04:25:32,725 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-28 04:25:32,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-28 04:25:32,725 INFO L130 BoogieDeclarations]: Found specification of procedure char_buf_ptr [2021-12-28 04:25:32,725 INFO L138 BoogieDeclarations]: Found implementation of procedure char_buf_ptr [2021-12-28 04:25:32,726 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_driver_5 [2021-12-28 04:25:32,726 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_5 [2021-12-28 04:25:32,726 INFO L130 BoogieDeclarations]: Found specification of procedure serial_port_activate [2021-12-28 04:25:32,726 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_port_activate [2021-12-28 04:25:32,726 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit_unlock [2021-12-28 04:25:32,726 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit_unlock [2021-12-28 04:25:32,727 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_1 [2021-12-28 04:25:32,727 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_1 [2021-12-28 04:25:32,727 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_get_interface [2021-12-28 04:25:32,727 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_get_interface [2021-12-28 04:25:32,727 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_deregister_drivers [2021-12-28 04:25:32,727 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_deregister_drivers [2021-12-28 04:25:32,727 INFO L130 BoogieDeclarations]: Found specification of procedure usb_store_new_id [2021-12-28 04:25:32,728 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_store_new_id [2021-12-28 04:25:32,728 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_in [2021-12-28 04:25:32,728 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_in [2021-12-28 04:25:32,728 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_port_work [2021-12-28 04:25:32,728 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_port_work [2021-12-28 04:25:32,728 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-12-28 04:25:32,729 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-12-28 04:25:32,729 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_port_poison_urbs [2021-12-28 04:25:32,729 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_port_poison_urbs [2021-12-28 04:25:32,729 INFO L130 BoogieDeclarations]: Found specification of procedure serial_hangup [2021-12-28 04:25:32,729 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_hangup [2021-12-28 04:25:32,729 INFO L130 BoogieDeclarations]: Found specification of procedure serial_ioctl [2021-12-28 04:25:32,730 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_ioctl [2021-12-28 04:25:32,730 INFO L130 BoogieDeclarations]: Found specification of procedure serial_write_room [2021-12-28 04:25:32,730 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_write_room [2021-12-28 04:25:32,730 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2021-12-28 04:25:32,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2021-12-28 04:25:32,730 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-28 04:25:32,730 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-28 04:25:32,731 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unpoison_urb [2021-12-28 04:25:32,731 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unpoison_urb [2021-12-28 04:25:32,731 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_device_probe [2021-12-28 04:25:32,732 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_device_probe [2021-12-28 04:25:32,732 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2021-12-28 04:25:32,732 INFO L130 BoogieDeclarations]: Found specification of procedure serial_get_icount [2021-12-28 04:25:32,733 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_get_icount [2021-12-28 04:25:32,733 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-12-28 04:25:32,733 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-12-28 04:25:32,733 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-28 04:25:32,733 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-28 04:25:32,734 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_submit_read_urb [2021-12-28 04:25:32,734 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_submit_read_urb [2021-12-28 04:25:32,734 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-28 04:25:32,734 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2021-12-28 04:25:32,734 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2021-12-28 04:25:32,734 INFO L130 BoogieDeclarations]: Found specification of procedure put_tty_driver [2021-12-28 04:25:32,735 INFO L138 BoogieDeclarations]: Found implementation of procedure put_tty_driver [2021-12-28 04:25:32,735 INFO L130 BoogieDeclarations]: Found specification of procedure serial_cleanup [2021-12-28 04:25:32,735 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_cleanup [2021-12-28 04:25:32,735 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-12-28 04:25:32,736 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-12-28 04:25:32,736 INFO L130 BoogieDeclarations]: Found specification of procedure serial_port_carrier_raised [2021-12-28 04:25:32,736 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_port_carrier_raised [2021-12-28 04:25:32,736 INFO L130 BoogieDeclarations]: Found specification of procedure __kfifo_uint_must_check_helper [2021-12-28 04:25:32,736 INFO L138 BoogieDeclarations]: Found implementation of procedure __kfifo_uint_must_check_helper [2021-12-28 04:25:32,736 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-12-28 04:25:32,737 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-12-28 04:25:32,737 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-28 04:25:32,737 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_probe [2021-12-28 04:25:32,737 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_probe [2021-12-28 04:25:32,737 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-12-28 04:25:32,737 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-12-28 04:25:32,738 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-28 04:25:32,738 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_reset_resume [2021-12-28 04:25:32,738 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_reset_resume [2021-12-28 04:25:32,738 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_read_bulk_callback [2021-12-28 04:25:32,739 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_read_bulk_callback [2021-12-28 04:25:32,739 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_put_interface [2021-12-28 04:25:32,739 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_put_interface [2021-12-28 04:25:32,739 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-28 04:25:32,739 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2021-12-28 04:25:32,739 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2021-12-28 04:25:32,740 INFO L130 BoogieDeclarations]: Found specification of procedure serial_port_shutdown [2021-12-28 04:25:32,740 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_port_shutdown [2021-12-28 04:25:32,741 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~pm_message_t~0~TO~int [2021-12-28 04:25:32,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~pm_message_t~0~TO~int [2021-12-28 04:25:32,741 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2021-12-28 04:25:32,741 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2021-12-28 04:25:32,742 INFO L130 BoogieDeclarations]: Found specification of procedure __read_once_size [2021-12-28 04:25:32,742 INFO L138 BoogieDeclarations]: Found implementation of procedure __read_once_size [2021-12-28 04:25:32,742 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-12-28 04:25:32,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-12-28 04:25:32,742 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-28 04:25:32,743 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-28 04:25:32,743 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-28 04:25:32,743 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-28 04:25:32,743 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-28 04:25:32,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-28 04:25:32,743 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-12-28 04:25:32,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-12-28 04:25:32,744 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2021-12-28 04:25:32,744 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2021-12-28 04:25:32,744 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2021-12-28 04:25:32,745 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2021-12-28 04:25:32,745 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_put [2021-12-28 04:25:32,747 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_put [2021-12-28 04:25:32,747 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-28 04:25:32,748 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-28 04:25:32,748 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_serial [2021-12-28 04:25:32,748 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_serial [2021-12-28 04:25:32,750 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-12-28 04:25:32,750 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-12-28 04:25:32,750 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-28 04:25:32,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-28 04:25:32,755 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_out [2021-12-28 04:25:32,755 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_out [2021-12-28 04:25:32,755 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-12-28 04:25:32,756 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-12-28 04:25:32,756 INFO L130 BoogieDeclarations]: Found specification of procedure serial_break [2021-12-28 04:25:32,756 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_break [2021-12-28 04:25:32,756 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_write_start [2021-12-28 04:25:32,756 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_write_start [2021-12-28 04:25:32,756 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2021-12-28 04:25:32,756 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2021-12-28 04:25:32,757 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2021-12-28 04:25:32,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2021-12-28 04:25:32,757 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2021-12-28 04:25:32,757 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2021-12-28 04:25:32,757 INFO L130 BoogieDeclarations]: Found specification of procedure usb_translate_errors [2021-12-28 04:25:32,757 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_translate_errors [2021-12-28 04:25:32,757 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-28 04:25:32,757 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-28 04:25:32,758 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-28 04:25:32,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-28 04:25:32,758 INFO L130 BoogieDeclarations]: Found specification of procedure new_id_show [2021-12-28 04:25:32,758 INFO L138 BoogieDeclarations]: Found implementation of procedure new_id_show [2021-12-28 04:25:32,758 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_write [2021-12-28 04:25:32,758 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_write [2021-12-28 04:25:32,758 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_maxp [2021-12-28 04:25:32,759 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_maxp [2021-12-28 04:25:32,759 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-28 04:25:32,759 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-28 04:25:32,759 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2021-12-28 04:25:32,759 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2021-12-28 04:25:32,759 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-28 04:25:32,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-28 04:25:32,760 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_4 [2021-12-28 04:25:32,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_4 [2021-12-28 04:25:32,760 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_suspend [2021-12-28 04:25:32,760 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_suspend [2021-12-28 04:25:32,760 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_msr_changed [2021-12-28 04:25:32,760 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_msr_changed [2021-12-28 04:25:32,760 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_is_int_in [2021-12-28 04:25:32,761 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_is_int_in [2021-12-28 04:25:32,761 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-28 04:25:32,761 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-28 04:25:32,761 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_disc_mutex_of_usb_serial [2021-12-28 04:25:32,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_disc_mutex_of_usb_serial [2021-12-28 04:25:32,761 INFO L130 BoogieDeclarations]: Found specification of procedure new_id_store [2021-12-28 04:25:32,761 INFO L138 BoogieDeclarations]: Found implementation of procedure new_id_store [2021-12-28 04:25:32,762 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2021-12-28 04:25:32,762 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2021-12-28 04:25:32,762 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_debug_data [2021-12-28 04:25:32,762 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_debug_data [2021-12-28 04:25:32,762 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-28 04:25:32,762 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-12-28 04:25:32,762 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-12-28 04:25:32,763 INFO L130 BoogieDeclarations]: Found specification of procedure serial_unthrottle [2021-12-28 04:25:32,763 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_unthrottle [2021-12-28 04:25:32,763 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_submit_read_urbs [2021-12-28 04:25:32,763 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_submit_read_urbs [2021-12-28 04:25:32,763 INFO L130 BoogieDeclarations]: Found specification of procedure module_put [2021-12-28 04:25:32,763 INFO L138 BoogieDeclarations]: Found implementation of procedure module_put [2021-12-28 04:25:32,763 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-28 04:25:32,763 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2021-12-28 04:25:32,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2021-12-28 04:25:32,764 INFO L130 BoogieDeclarations]: Found specification of procedure serial_throttle [2021-12-28 04:25:32,764 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_throttle [2021-12-28 04:25:32,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-28 04:25:32,764 INFO L130 BoogieDeclarations]: Found specification of procedure try_module_get [2021-12-28 04:25:32,764 INFO L138 BoogieDeclarations]: Found implementation of procedure try_module_get [2021-12-28 04:25:32,764 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~X~int~TO~int [2021-12-28 04:25:32,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~X~int~TO~int [2021-12-28 04:25:32,765 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_deregister [2021-12-28 04:25:32,765 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_deregister [2021-12-28 04:25:32,765 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-12-28 04:25:32,765 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-12-28 04:25:32,765 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_resume [2021-12-28 04:25:32,765 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_resume [2021-12-28 04:25:32,765 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2021-12-28 04:25:32,765 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2021-12-28 04:25:32,766 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-12-28 04:25:32,766 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-12-28 04:25:32,766 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_port_softint [2021-12-28 04:25:32,766 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_port_softint [2021-12-28 04:25:32,766 INFO L130 BoogieDeclarations]: Found specification of procedure serial_tiocmget [2021-12-28 04:25:32,766 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_tiocmget [2021-12-28 04:25:32,766 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2021-12-28 04:25:32,766 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2021-12-28 04:25:32,767 INFO L130 BoogieDeclarations]: Found specification of procedure jiffies_to_msecs [2021-12-28 04:25:32,767 INFO L138 BoogieDeclarations]: Found implementation of procedure jiffies_to_msecs [2021-12-28 04:25:32,767 INFO L130 BoogieDeclarations]: Found specification of procedure bus_unregister [2021-12-28 04:25:32,767 INFO L138 BoogieDeclarations]: Found implementation of procedure bus_unregister [2021-12-28 04:25:32,767 INFO L130 BoogieDeclarations]: Found specification of procedure usb_poison_urb [2021-12-28 04:25:32,767 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_poison_urb [2021-12-28 04:25:32,767 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2021-12-28 04:25:32,767 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2021-12-28 04:25:32,768 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_bulk [2021-12-28 04:25:32,768 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_bulk [2021-12-28 04:25:32,768 INFO L130 BoogieDeclarations]: Found specification of procedure serial_wait_until_sent [2021-12-28 04:25:32,768 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_wait_until_sent [2021-12-28 04:25:32,768 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2021-12-28 04:25:32,768 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2021-12-28 04:25:32,768 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_device_match [2021-12-28 04:25:32,768 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_device_match [2021-12-28 04:25:32,768 INFO L130 BoogieDeclarations]: Found specification of procedure serial_open [2021-12-28 04:25:32,769 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_open [2021-12-28 04:25:32,769 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-12-28 04:25:32,769 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-12-28 04:25:32,769 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_int_urb [2021-12-28 04:25:32,769 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_int_urb [2021-12-28 04:25:32,769 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-28 04:25:32,769 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-28 04:25:32,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-28 04:25:32,770 INFO L130 BoogieDeclarations]: Found specification of procedure serial_set_termios [2021-12-28 04:25:32,770 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_set_termios [2021-12-28 04:25:32,770 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_resume [2021-12-28 04:25:32,770 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_resume [2021-12-28 04:25:32,770 INFO L130 BoogieDeclarations]: Found specification of procedure single_release [2021-12-28 04:25:32,770 INFO L138 BoogieDeclarations]: Found implementation of procedure single_release [2021-12-28 04:25:32,770 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-28 04:25:32,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-28 04:25:32,774 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_disconnect [2021-12-28 04:25:32,774 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_disconnect [2021-12-28 04:25:32,774 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_unthrottle [2021-12-28 04:25:32,774 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_unthrottle [2021-12-28 04:25:32,774 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_disc_mutex_of_usb_serial [2021-12-28 04:25:32,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_disc_mutex_of_usb_serial [2021-12-28 04:25:32,774 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_port_get_by_minor [2021-12-28 04:25:32,775 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_port_get_by_minor [2021-12-28 04:25:32,775 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-12-28 04:25:32,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-12-28 04:25:32,776 INFO L130 BoogieDeclarations]: Found specification of procedure serial_install [2021-12-28 04:25:32,776 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_install [2021-12-28 04:25:32,776 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_handle_sysrq_char [2021-12-28 04:25:32,776 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_handle_sysrq_char [2021-12-28 04:25:32,776 INFO L130 BoogieDeclarations]: Found specification of procedure serial_tiocmset [2021-12-28 04:25:32,776 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_tiocmset [2021-12-28 04:25:32,777 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_table_lock [2021-12-28 04:25:32,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_table_lock [2021-12-28 04:25:32,777 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2021-12-28 04:25:32,777 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2021-12-28 04:25:32,777 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_table_lock [2021-12-28 04:25:32,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_table_lock [2021-12-28 04:25:32,777 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_unpoison_port_urbs [2021-12-28 04:25:32,777 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_unpoison_port_urbs [2021-12-28 04:25:32,778 INFO L130 BoogieDeclarations]: Found specification of procedure serial_write [2021-12-28 04:25:32,778 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_write [2021-12-28 04:25:32,778 INFO L130 BoogieDeclarations]: Found specification of procedure idr_remove [2021-12-28 04:25:32,778 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_remove [2021-12-28 04:25:32,778 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-12-28 04:25:32,778 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-12-28 04:25:32,778 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-12-28 04:25:32,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-12-28 04:25:32,778 INFO L130 BoogieDeclarations]: Found specification of procedure get_iface_id [2021-12-28 04:25:32,779 INFO L138 BoogieDeclarations]: Found implementation of procedure get_iface_id [2021-12-28 04:25:32,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-28 04:25:32,779 INFO L130 BoogieDeclarations]: Found specification of procedure tty_unregister_driver [2021-12-28 04:25:32,779 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_unregister_driver [2021-12-28 04:25:33,765 INFO L234 CfgBuilder]: Building ICFG [2021-12-28 04:25:33,768 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-28 04:25:34,234 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-28 04:25:43,529 INFO L275 CfgBuilder]: Performing block encoding [2021-12-28 04:25:43,557 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-28 04:25:43,557 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-28 04:25:43,561 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 04:25:43 BoogieIcfgContainer [2021-12-28 04:25:43,561 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-28 04:25:43,563 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-28 04:25:43,563 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-28 04:25:43,566 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-28 04:25:43,566 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.12 04:25:28" (1/3) ... [2021-12-28 04:25:43,567 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b060bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 04:25:43, skipping insertion in model container [2021-12-28 04:25:43,567 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:25:31" (2/3) ... [2021-12-28 04:25:43,567 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b060bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 04:25:43, skipping insertion in model container [2021-12-28 04:25:43,567 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 04:25:43" (3/3) ... [2021-12-28 04:25:43,569 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--usb--serial--usbserial.ko-entry_point.cil.out.i [2021-12-28 04:25:43,573 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-28 04:25:43,573 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-28 04:25:43,617 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-28 04:25:43,626 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 04:25:43,627 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-28 04:25:43,683 INFO L276 IsEmpty]: Start isEmpty. Operand has 2411 states, 1722 states have (on average 1.3443670150987224) internal successors, (2315), 1764 states have internal predecessors, (2315), 555 states have call successors, (555), 133 states have call predecessors, (555), 132 states have return successors, (544), 531 states have call predecessors, (544), 544 states have call successors, (544) [2021-12-28 04:25:43,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2021-12-28 04:25:43,701 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:25:43,702 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 04:25:43,702 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 04:25:43,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:25:43,707 INFO L85 PathProgramCache]: Analyzing trace with hash 304341664, now seen corresponding path program 1 times [2021-12-28 04:25:43,714 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:25:43,714 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162168217] [2021-12-28 04:25:43,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:25:43,715 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:25:44,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:25:44,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:25:44,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:25:44,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:25:44,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:25:44,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:25:44,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:25:44,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 04:25:44,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:25:44,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:25:44,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:25:44,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:25:44,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:25:44,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-28 04:25:44,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:25:44,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:25:44,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:25:44,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:25:44,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:25:44,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-28 04:25:44,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:25:44,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:25:44,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:25:44,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:25:44,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:25:44,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-28 04:25:44,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:25:44,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:25:44,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:25:44,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:25:44,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:25:44,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-28 04:25:44,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:25:44,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:25:44,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:25:44,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:25:44,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:25:44,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-28 04:25:44,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:25:44,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:25:44,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:25:44,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:25:44,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:25:44,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-28 04:25:44,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:25:44,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:25:44,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:25:44,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:25:44,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:25:44,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-28 04:25:44,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:25:44,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:25:44,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:25:44,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:25:44,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:25:44,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-28 04:25:44,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:25:44,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:25:44,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:25:44,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:25:44,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:25:44,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-28 04:25:44,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:25:44,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:25:44,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:25:44,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:25:44,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:25:45,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-12-28 04:25:45,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:25:45,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-12-28 04:25:45,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:25:45,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-12-28 04:25:45,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:25:45,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2021-12-28 04:25:45,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:25:45,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2021-12-28 04:25:45,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:25:45,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2021-12-28 04:25:45,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:25:45,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2021-12-28 04:25:45,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:25:45,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2021-12-28 04:25:45,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:25:45,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-12-28 04:25:45,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:25:45,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2021-12-28 04:25:45,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:25:45,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2021-12-28 04:25:45,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:25:45,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2021-12-28 04:25:45,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:25:45,168 INFO L134 CoverageAnalysis]: Checked inductivity of 1100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1100 trivial. 0 not checked. [2021-12-28 04:25:45,169 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:25:45,169 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162168217] [2021-12-28 04:25:45,169 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1162168217] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:25:45,170 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:25:45,170 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-28 04:25:45,171 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490726456] [2021-12-28 04:25:45,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:25:45,175 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-28 04:25:45,176 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:25:45,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-28 04:25:45,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-28 04:25:45,205 INFO L87 Difference]: Start difference. First operand has 2411 states, 1722 states have (on average 1.3443670150987224) internal successors, (2315), 1764 states have internal predecessors, (2315), 555 states have call successors, (555), 133 states have call predecessors, (555), 132 states have return successors, (544), 531 states have call predecessors, (544), 544 states have call successors, (544) Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (28), 5 states have call predecessors, (28), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2021-12-28 04:25:48,877 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 04:25:50,914 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 04:26:01,495 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 04:26:03,538 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 04:26:09,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 04:26:09,038 INFO L93 Difference]: Finished difference Result 8241 states and 12466 transitions. [2021-12-28 04:26:09,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-28 04:26:09,040 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (28), 5 states have call predecessors, (28), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) Word has length 278 [2021-12-28 04:26:09,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 04:26:09,114 INFO L225 Difference]: With dead ends: 8241 [2021-12-28 04:26:09,114 INFO L226 Difference]: Without dead ends: 5802 [2021-12-28 04:26:09,141 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-12-28 04:26:09,145 INFO L933 BasicCegarLoop]: 3737 mSDtfsCounter, 6440 mSDsluCounter, 6435 mSDsCounter, 0 mSdLazyCounter, 4324 mSolverCounterSat, 3613 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6828 SdHoareTripleChecker+Valid, 10172 SdHoareTripleChecker+Invalid, 7941 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3613 IncrementalHoareTripleChecker+Valid, 4324 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.2s IncrementalHoareTripleChecker+Time [2021-12-28 04:26:09,152 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6828 Valid, 10172 Invalid, 7941 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3613 Valid, 4324 Invalid, 4 Unknown, 0 Unchecked, 23.2s Time] [2021-12-28 04:26:09,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5802 states. [2021-12-28 04:26:09,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5802 to 5306. [2021-12-28 04:26:09,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5306 states, 3834 states have (on average 1.3367240479916536) internal successors, (5125), 3894 states have internal predecessors, (5125), 1173 states have call successors, (1173), 263 states have call predecessors, (1173), 298 states have return successors, (1375), 1166 states have call predecessors, (1375), 1164 states have call successors, (1375) [2021-12-28 04:26:09,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5306 states to 5306 states and 7673 transitions. [2021-12-28 04:26:09,580 INFO L78 Accepts]: Start accepts. Automaton has 5306 states and 7673 transitions. Word has length 278 [2021-12-28 04:26:09,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 04:26:09,581 INFO L470 AbstractCegarLoop]: Abstraction has 5306 states and 7673 transitions. [2021-12-28 04:26:09,581 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (28), 5 states have call predecessors, (28), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2021-12-28 04:26:09,582 INFO L276 IsEmpty]: Start isEmpty. Operand 5306 states and 7673 transitions. [2021-12-28 04:26:09,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2021-12-28 04:26:09,587 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:26:09,588 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 04:26:09,588 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-28 04:26:09,588 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 04:26:09,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:26:09,589 INFO L85 PathProgramCache]: Analyzing trace with hash -1013821260, now seen corresponding path program 1 times [2021-12-28 04:26:09,589 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:26:09,589 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771923379] [2021-12-28 04:26:09,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:26:09,590 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:26:09,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:26:09,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:26:09,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:26:10,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:26:10,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:26:10,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:26:10,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:26:10,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 04:26:10,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:26:10,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:26:10,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:26:10,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:26:10,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:26:10,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-28 04:26:10,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:26:10,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:26:10,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:26:10,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:26:10,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:26:10,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-28 04:26:10,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:26:10,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:26:10,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:26:10,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:26:10,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:26:10,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-28 04:26:10,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:26:10,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:26:10,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:26:10,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:26:10,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:26:10,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-28 04:26:10,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:26:10,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:26:10,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:26:10,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:26:10,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:26:10,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-28 04:26:10,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:26:10,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:26:10,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:26:10,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:26:10,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:26:10,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-28 04:26:10,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:26:10,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:26:10,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:26:10,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:26:10,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:26:10,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-28 04:26:10,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:26:10,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:26:10,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:26:10,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:26:10,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:26:10,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-28 04:26:10,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:26:10,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:26:10,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:26:10,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:26:10,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:26:10,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-28 04:26:10,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:26:10,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:26:10,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:26:10,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:26:10,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:26:10,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-12-28 04:26:10,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:26:10,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-12-28 04:26:10,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:26:10,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-12-28 04:26:10,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:26:10,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2021-12-28 04:26:10,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:26:10,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2021-12-28 04:26:10,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:26:10,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2021-12-28 04:26:10,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:26:10,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2021-12-28 04:26:10,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:26:10,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2021-12-28 04:26:10,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:26:10,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-12-28 04:26:10,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:26:10,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2021-12-28 04:26:10,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:26:10,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2021-12-28 04:26:10,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:26:10,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2021-12-28 04:26:10,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:26:10,423 INFO L134 CoverageAnalysis]: Checked inductivity of 1100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1100 trivial. 0 not checked. [2021-12-28 04:26:10,423 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:26:10,424 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771923379] [2021-12-28 04:26:10,424 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [771923379] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:26:10,424 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:26:10,424 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-28 04:26:10,424 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110846661] [2021-12-28 04:26:10,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:26:10,427 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-28 04:26:10,427 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:26:10,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-28 04:26:10,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-28 04:26:10,428 INFO L87 Difference]: Start difference. First operand 5306 states and 7673 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (29), 5 states have call predecessors, (29), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2021-12-28 04:26:12,946 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 04:26:15,001 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []