./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 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--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 0.2.2-839c364b5d67a0f615c82cb70ab247790648d4a9-839c364 [2021-12-14 18:13:17,356 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-14 18:13:17,358 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-14 18:13:17,390 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-14 18:13:17,391 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-14 18:13:17,393 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-14 18:13:17,394 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-14 18:13:17,396 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-14 18:13:17,397 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-14 18:13:17,400 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-14 18:13:17,401 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-14 18:13:17,402 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-14 18:13:17,402 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-14 18:13:17,404 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-14 18:13:17,405 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-14 18:13:17,407 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-14 18:13:17,408 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-14 18:13:17,408 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-14 18:13:17,412 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-14 18:13:17,416 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-14 18:13:17,417 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-14 18:13:17,417 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-14 18:13:17,418 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-14 18:13:17,419 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-14 18:13:17,423 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-14 18:13:17,424 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-14 18:13:17,424 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-14 18:13:17,425 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-14 18:13:17,425 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-14 18:13:17,426 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-14 18:13:17,426 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-14 18:13:17,426 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-14 18:13:17,427 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-14 18:13:17,428 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-14 18:13:17,429 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-14 18:13:17,429 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-14 18:13:17,429 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-14 18:13:17,430 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-14 18:13:17,430 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-14 18:13:17,430 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-14 18:13:17,431 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-14 18:13:17,431 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-14 18:13:17,455 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-14 18:13:17,455 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-14 18:13:17,456 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-14 18:13:17,456 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-14 18:13:17,457 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-14 18:13:17,457 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-14 18:13:17,457 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-14 18:13:17,457 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-14 18:13:17,457 INFO L138 SettingsManager]: * Use SBE=true [2021-12-14 18:13:17,458 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-14 18:13:17,458 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-14 18:13:17,458 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-14 18:13:17,459 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-14 18:13:17,459 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-14 18:13:17,459 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-14 18:13:17,459 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-14 18:13:17,459 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-14 18:13:17,459 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-14 18:13:17,459 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-14 18:13:17,460 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-14 18:13:17,460 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-14 18:13:17,460 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 18:13:17,460 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-14 18:13:17,460 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-14 18:13:17,460 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-14 18:13:17,461 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-14 18:13:17,461 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-14 18:13:17,461 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-14 18:13:17,461 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-14 18:13:17,461 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-14 18:13:17,461 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-14 18:13:17,461 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bf654a6a1eca45ac77a809162568fb8018795c05fa9eb6946186269d2e2c9c25 [2021-12-14 18:13:17,632 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-14 18:13:17,651 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-14 18:13:17,653 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-14 18:13:17,654 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-14 18:13:17,654 INFO L275 PluginConnector]: CDTParser initialized [2021-12-14 18:13:17,655 INFO L432 ainManager$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 [2021-12-14 18:13:17,724 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/465d59334/bfdbcacb505d45b894d937ef2377be0a/FLAGdced9cc95 [2021-12-14 18:13:18,367 INFO L306 CDTParser]: Found 1 translation units. [2021-12-14 18:13:18,368 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 [2021-12-14 18:13:18,402 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/465d59334/bfdbcacb505d45b894d937ef2377be0a/FLAGdced9cc95 [2021-12-14 18:13:18,530 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/465d59334/bfdbcacb505d45b894d937ef2377be0a [2021-12-14 18:13:18,532 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-14 18:13:18,533 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-14 18:13:18,533 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-14 18:13:18,533 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-14 18:13:18,537 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-14 18:13:18,537 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:13:18" (1/1) ... [2021-12-14 18:13:18,538 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74ed782f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:13:18, skipping insertion in model container [2021-12-14 18:13:18,538 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:13:18" (1/1) ... [2021-12-14 18:13:18,542 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-14 18:13:18,624 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-14 18:13:20,624 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] [2021-12-14 18:13:20,857 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 18:13:20,896 INFO L203 MainTranslator]: Completed pre-run [2021-12-14 18:13:21,246 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] [2021-12-14 18:13:21,257 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 18:13:21,374 INFO L208 MainTranslator]: Completed translation [2021-12-14 18:13:21,375 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:13:21 WrapperNode [2021-12-14 18:13:21,376 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-14 18:13:21,377 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-14 18:13:21,377 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-14 18:13:21,377 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-14 18:13:21,387 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:13:21" (1/1) ... [2021-12-14 18:13:21,497 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:13:21" (1/1) ... [2021-12-14 18:13:21,677 INFO L137 Inliner]: procedures = 481, calls = 4096, calls flagged for inlining = 211, calls inlined = 204, statements flattened = 8088 [2021-12-14 18:13:21,677 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-14 18:13:21,678 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-14 18:13:21,678 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-14 18:13:21,678 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-14 18:13:21,685 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:13:21" (1/1) ... [2021-12-14 18:13:21,685 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:13:21" (1/1) ... [2021-12-14 18:13:21,730 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:13:21" (1/1) ... [2021-12-14 18:13:21,730 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:13:21" (1/1) ... [2021-12-14 18:13:21,862 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:13:21" (1/1) ... [2021-12-14 18:13:21,876 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:13:21" (1/1) ... [2021-12-14 18:13:21,897 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:13:21" (1/1) ... [2021-12-14 18:13:21,927 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-14 18:13:21,928 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-14 18:13:21,928 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-14 18:13:21,929 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-14 18:13:21,929 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:13:21" (1/1) ... [2021-12-14 18:13:21,935 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 18:13:21,941 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 18:13:21,964 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-14 18:13:21,969 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-14 18:13:21,998 INFO L130 BoogieDeclarations]: Found specification of procedure serial_proc_open [2021-12-14 18:13:21,998 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_proc_open [2021-12-14 18:13:21,998 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_throttle [2021-12-14 18:13:21,999 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_throttle [2021-12-14 18:13:21,999 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2021-12-14 18:13:21,999 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2021-12-14 18:13:21,999 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-14 18:13:21,999 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-14 18:13:21,999 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_int [2021-12-14 18:13:21,999 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_int [2021-12-14 18:13:21,999 INFO L130 BoogieDeclarations]: Found specification of procedure serial_port_dtr_rts [2021-12-14 18:13:21,999 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_port_dtr_rts [2021-12-14 18:13:22,000 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_device_remove [2021-12-14 18:13:22,000 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_device_remove [2021-12-14 18:13:22,000 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2021-12-14 18:13:22,000 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2021-12-14 18:13:22,000 INFO L130 BoogieDeclarations]: Found specification of procedure serial_chars_in_buffer [2021-12-14 18:13:22,000 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_chars_in_buffer [2021-12-14 18:13:22,000 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-14 18:13:22,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-14 18:13:22,000 INFO L130 BoogieDeclarations]: Found specification of procedure char_buf_ptr [2021-12-14 18:13:22,001 INFO L138 BoogieDeclarations]: Found implementation of procedure char_buf_ptr [2021-12-14 18:13:22,001 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_driver_5 [2021-12-14 18:13:22,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_5 [2021-12-14 18:13:22,001 INFO L130 BoogieDeclarations]: Found specification of procedure serial_port_activate [2021-12-14 18:13:22,001 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_port_activate [2021-12-14 18:13:22,001 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit_unlock [2021-12-14 18:13:22,001 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit_unlock [2021-12-14 18:13:22,001 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_1 [2021-12-14 18:13:22,001 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_1 [2021-12-14 18:13:22,002 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_get_interface [2021-12-14 18:13:22,002 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_get_interface [2021-12-14 18:13:22,002 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_deregister_drivers [2021-12-14 18:13:22,002 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_deregister_drivers [2021-12-14 18:13:22,002 INFO L130 BoogieDeclarations]: Found specification of procedure usb_store_new_id [2021-12-14 18:13:22,002 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_store_new_id [2021-12-14 18:13:22,002 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_in [2021-12-14 18:13:22,003 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_in [2021-12-14 18:13:22,003 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_port_work [2021-12-14 18:13:22,003 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_port_work [2021-12-14 18:13:22,003 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-12-14 18:13:22,003 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-12-14 18:13:22,003 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_port_poison_urbs [2021-12-14 18:13:22,003 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_port_poison_urbs [2021-12-14 18:13:22,004 INFO L130 BoogieDeclarations]: Found specification of procedure serial_hangup [2021-12-14 18:13:22,004 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_hangup [2021-12-14 18:13:22,004 INFO L130 BoogieDeclarations]: Found specification of procedure serial_ioctl [2021-12-14 18:13:22,004 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_ioctl [2021-12-14 18:13:22,004 INFO L130 BoogieDeclarations]: Found specification of procedure serial_write_room [2021-12-14 18:13:22,004 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_write_room [2021-12-14 18:13:22,004 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2021-12-14 18:13:22,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2021-12-14 18:13:22,004 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-14 18:13:22,005 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-14 18:13:22,005 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unpoison_urb [2021-12-14 18:13:22,005 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unpoison_urb [2021-12-14 18:13:22,005 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_device_probe [2021-12-14 18:13:22,006 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_device_probe [2021-12-14 18:13:22,006 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2021-12-14 18:13:22,006 INFO L130 BoogieDeclarations]: Found specification of procedure serial_get_icount [2021-12-14 18:13:22,007 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_get_icount [2021-12-14 18:13:22,007 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-12-14 18:13:22,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-12-14 18:13:22,007 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-14 18:13:22,007 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-14 18:13:22,007 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_submit_read_urb [2021-12-14 18:13:22,007 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_submit_read_urb [2021-12-14 18:13:22,007 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-14 18:13:22,007 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2021-12-14 18:13:22,008 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2021-12-14 18:13:22,008 INFO L130 BoogieDeclarations]: Found specification of procedure put_tty_driver [2021-12-14 18:13:22,008 INFO L138 BoogieDeclarations]: Found implementation of procedure put_tty_driver [2021-12-14 18:13:22,008 INFO L130 BoogieDeclarations]: Found specification of procedure serial_cleanup [2021-12-14 18:13:22,008 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_cleanup [2021-12-14 18:13:22,008 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-12-14 18:13:22,008 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-12-14 18:13:22,008 INFO L130 BoogieDeclarations]: Found specification of procedure serial_port_carrier_raised [2021-12-14 18:13:22,009 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_port_carrier_raised [2021-12-14 18:13:22,009 INFO L130 BoogieDeclarations]: Found specification of procedure __kfifo_uint_must_check_helper [2021-12-14 18:13:22,009 INFO L138 BoogieDeclarations]: Found implementation of procedure __kfifo_uint_must_check_helper [2021-12-14 18:13:22,009 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-12-14 18:13:22,009 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-12-14 18:13:22,009 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-14 18:13:22,009 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_probe [2021-12-14 18:13:22,010 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_probe [2021-12-14 18:13:22,010 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-12-14 18:13:22,010 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-12-14 18:13:22,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-14 18:13:22,010 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_reset_resume [2021-12-14 18:13:22,010 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_reset_resume [2021-12-14 18:13:22,010 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_read_bulk_callback [2021-12-14 18:13:22,011 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_read_bulk_callback [2021-12-14 18:13:22,011 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_put_interface [2021-12-14 18:13:22,011 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_put_interface [2021-12-14 18:13:22,011 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-14 18:13:22,012 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2021-12-14 18:13:22,012 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2021-12-14 18:13:22,012 INFO L130 BoogieDeclarations]: Found specification of procedure serial_port_shutdown [2021-12-14 18:13:22,012 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_port_shutdown [2021-12-14 18:13:22,012 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~pm_message_t~0~TO~int [2021-12-14 18:13:22,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~pm_message_t~0~TO~int [2021-12-14 18:13:22,013 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2021-12-14 18:13:22,013 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2021-12-14 18:13:22,013 INFO L130 BoogieDeclarations]: Found specification of procedure __read_once_size [2021-12-14 18:13:22,013 INFO L138 BoogieDeclarations]: Found implementation of procedure __read_once_size [2021-12-14 18:13:22,013 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-12-14 18:13:22,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-12-14 18:13:22,013 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-14 18:13:22,013 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-14 18:13:22,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-14 18:13:22,014 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-14 18:13:22,014 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-14 18:13:22,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-14 18:13:22,014 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-12-14 18:13:22,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-12-14 18:13:22,014 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2021-12-14 18:13:22,015 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2021-12-14 18:13:22,015 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2021-12-14 18:13:22,015 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2021-12-14 18:13:22,051 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_put [2021-12-14 18:13:22,051 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_put [2021-12-14 18:13:22,051 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-14 18:13:22,051 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-14 18:13:22,052 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_serial [2021-12-14 18:13:22,053 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_serial [2021-12-14 18:13:22,053 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-12-14 18:13:22,053 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-12-14 18:13:22,053 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-14 18:13:22,055 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-14 18:13:22,055 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_out [2021-12-14 18:13:22,055 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_out [2021-12-14 18:13:22,055 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-12-14 18:13:22,055 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-12-14 18:13:22,055 INFO L130 BoogieDeclarations]: Found specification of procedure serial_break [2021-12-14 18:13:22,055 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_break [2021-12-14 18:13:22,055 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_write_start [2021-12-14 18:13:22,055 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_write_start [2021-12-14 18:13:22,055 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2021-12-14 18:13:22,055 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2021-12-14 18:13:22,055 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2021-12-14 18:13:22,055 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2021-12-14 18:13:22,056 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2021-12-14 18:13:22,056 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2021-12-14 18:13:22,056 INFO L130 BoogieDeclarations]: Found specification of procedure usb_translate_errors [2021-12-14 18:13:22,056 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_translate_errors [2021-12-14 18:13:22,056 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-14 18:13:22,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-14 18:13:22,056 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-14 18:13:22,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-14 18:13:22,056 INFO L130 BoogieDeclarations]: Found specification of procedure new_id_show [2021-12-14 18:13:22,056 INFO L138 BoogieDeclarations]: Found implementation of procedure new_id_show [2021-12-14 18:13:22,056 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_write [2021-12-14 18:13:22,056 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_write [2021-12-14 18:13:22,056 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_maxp [2021-12-14 18:13:22,056 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_maxp [2021-12-14 18:13:22,056 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-14 18:13:22,056 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-14 18:13:22,056 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2021-12-14 18:13:22,056 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2021-12-14 18:13:22,056 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-14 18:13:22,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-14 18:13:22,056 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_4 [2021-12-14 18:13:22,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_4 [2021-12-14 18:13:22,057 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_suspend [2021-12-14 18:13:22,057 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_suspend [2021-12-14 18:13:22,057 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_msr_changed [2021-12-14 18:13:22,057 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_msr_changed [2021-12-14 18:13:22,057 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_is_int_in [2021-12-14 18:13:22,057 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_is_int_in [2021-12-14 18:13:22,057 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-14 18:13:22,057 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-14 18:13:22,057 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_disc_mutex_of_usb_serial [2021-12-14 18:13:22,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_disc_mutex_of_usb_serial [2021-12-14 18:13:22,057 INFO L130 BoogieDeclarations]: Found specification of procedure new_id_store [2021-12-14 18:13:22,057 INFO L138 BoogieDeclarations]: Found implementation of procedure new_id_store [2021-12-14 18:13:22,057 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2021-12-14 18:13:22,057 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2021-12-14 18:13:22,057 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_debug_data [2021-12-14 18:13:22,057 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_debug_data [2021-12-14 18:13:22,058 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-14 18:13:22,058 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-12-14 18:13:22,058 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-12-14 18:13:22,058 INFO L130 BoogieDeclarations]: Found specification of procedure serial_unthrottle [2021-12-14 18:13:22,058 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_unthrottle [2021-12-14 18:13:22,058 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_submit_read_urbs [2021-12-14 18:13:22,058 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_submit_read_urbs [2021-12-14 18:13:22,058 INFO L130 BoogieDeclarations]: Found specification of procedure module_put [2021-12-14 18:13:22,058 INFO L138 BoogieDeclarations]: Found implementation of procedure module_put [2021-12-14 18:13:22,058 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-14 18:13:22,058 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2021-12-14 18:13:22,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2021-12-14 18:13:22,058 INFO L130 BoogieDeclarations]: Found specification of procedure serial_throttle [2021-12-14 18:13:22,058 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_throttle [2021-12-14 18:13:22,058 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-14 18:13:22,058 INFO L130 BoogieDeclarations]: Found specification of procedure try_module_get [2021-12-14 18:13:22,059 INFO L138 BoogieDeclarations]: Found implementation of procedure try_module_get [2021-12-14 18:13:22,059 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~X~int~TO~int [2021-12-14 18:13:22,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~X~int~TO~int [2021-12-14 18:13:22,059 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_deregister [2021-12-14 18:13:22,059 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_deregister [2021-12-14 18:13:22,059 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-12-14 18:13:22,059 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-12-14 18:13:22,059 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_resume [2021-12-14 18:13:22,059 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_resume [2021-12-14 18:13:22,059 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2021-12-14 18:13:22,059 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2021-12-14 18:13:22,059 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-12-14 18:13:22,059 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-12-14 18:13:22,059 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_port_softint [2021-12-14 18:13:22,059 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_port_softint [2021-12-14 18:13:22,059 INFO L130 BoogieDeclarations]: Found specification of procedure serial_tiocmget [2021-12-14 18:13:22,059 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_tiocmget [2021-12-14 18:13:22,059 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2021-12-14 18:13:22,060 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2021-12-14 18:13:22,060 INFO L130 BoogieDeclarations]: Found specification of procedure jiffies_to_msecs [2021-12-14 18:13:22,060 INFO L138 BoogieDeclarations]: Found implementation of procedure jiffies_to_msecs [2021-12-14 18:13:22,060 INFO L130 BoogieDeclarations]: Found specification of procedure bus_unregister [2021-12-14 18:13:22,060 INFO L138 BoogieDeclarations]: Found implementation of procedure bus_unregister [2021-12-14 18:13:22,060 INFO L130 BoogieDeclarations]: Found specification of procedure usb_poison_urb [2021-12-14 18:13:22,060 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_poison_urb [2021-12-14 18:13:22,060 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2021-12-14 18:13:22,060 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2021-12-14 18:13:22,060 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_bulk [2021-12-14 18:13:22,060 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_bulk [2021-12-14 18:13:22,060 INFO L130 BoogieDeclarations]: Found specification of procedure serial_wait_until_sent [2021-12-14 18:13:22,060 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_wait_until_sent [2021-12-14 18:13:22,060 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2021-12-14 18:13:22,060 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2021-12-14 18:13:22,060 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_device_match [2021-12-14 18:13:22,060 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_device_match [2021-12-14 18:13:22,060 INFO L130 BoogieDeclarations]: Found specification of procedure serial_open [2021-12-14 18:13:22,061 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_open [2021-12-14 18:13:22,061 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-12-14 18:13:22,061 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-12-14 18:13:22,061 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_int_urb [2021-12-14 18:13:22,061 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_int_urb [2021-12-14 18:13:22,061 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-14 18:13:22,061 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-14 18:13:22,061 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-14 18:13:22,061 INFO L130 BoogieDeclarations]: Found specification of procedure serial_set_termios [2021-12-14 18:13:22,061 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_set_termios [2021-12-14 18:13:22,061 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_resume [2021-12-14 18:13:22,061 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_resume [2021-12-14 18:13:22,061 INFO L130 BoogieDeclarations]: Found specification of procedure single_release [2021-12-14 18:13:22,061 INFO L138 BoogieDeclarations]: Found implementation of procedure single_release [2021-12-14 18:13:22,061 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-14 18:13:22,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-14 18:13:22,061 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_disconnect [2021-12-14 18:13:22,061 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_disconnect [2021-12-14 18:13:22,061 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_unthrottle [2021-12-14 18:13:22,062 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_unthrottle [2021-12-14 18:13:22,062 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_disc_mutex_of_usb_serial [2021-12-14 18:13:22,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_disc_mutex_of_usb_serial [2021-12-14 18:13:22,062 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_port_get_by_minor [2021-12-14 18:13:22,062 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_port_get_by_minor [2021-12-14 18:13:22,062 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-12-14 18:13:22,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-12-14 18:13:22,062 INFO L130 BoogieDeclarations]: Found specification of procedure serial_install [2021-12-14 18:13:22,062 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_install [2021-12-14 18:13:22,062 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_handle_sysrq_char [2021-12-14 18:13:22,062 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_handle_sysrq_char [2021-12-14 18:13:22,062 INFO L130 BoogieDeclarations]: Found specification of procedure serial_tiocmset [2021-12-14 18:13:22,062 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_tiocmset [2021-12-14 18:13:22,062 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_table_lock [2021-12-14 18:13:22,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_table_lock [2021-12-14 18:13:22,062 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2021-12-14 18:13:22,062 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2021-12-14 18:13:22,062 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_table_lock [2021-12-14 18:13:22,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_table_lock [2021-12-14 18:13:22,062 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_unpoison_port_urbs [2021-12-14 18:13:22,062 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_unpoison_port_urbs [2021-12-14 18:13:22,063 INFO L130 BoogieDeclarations]: Found specification of procedure serial_write [2021-12-14 18:13:22,063 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_write [2021-12-14 18:13:22,063 INFO L130 BoogieDeclarations]: Found specification of procedure idr_remove [2021-12-14 18:13:22,063 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_remove [2021-12-14 18:13:22,063 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-12-14 18:13:22,063 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-12-14 18:13:22,063 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-12-14 18:13:22,075 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-12-14 18:13:22,075 INFO L130 BoogieDeclarations]: Found specification of procedure get_iface_id [2021-12-14 18:13:22,076 INFO L138 BoogieDeclarations]: Found implementation of procedure get_iface_id [2021-12-14 18:13:22,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-14 18:13:22,076 INFO L130 BoogieDeclarations]: Found specification of procedure tty_unregister_driver [2021-12-14 18:13:22,076 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_unregister_driver [2021-12-14 18:13:22,960 INFO L236 CfgBuilder]: Building ICFG [2021-12-14 18:13:22,964 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-14 18:13:23,356 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-14 18:13:32,945 INFO L277 CfgBuilder]: Performing block encoding [2021-12-14 18:13:32,958 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-14 18:13:32,958 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-14 18:13:32,962 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:13:32 BoogieIcfgContainer [2021-12-14 18:13:32,963 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-14 18:13:32,964 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-14 18:13:32,964 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-14 18:13:32,966 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-14 18:13:32,966 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 06:13:18" (1/3) ... [2021-12-14 18:13:32,967 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@acb9c38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:13:32, skipping insertion in model container [2021-12-14 18:13:32,967 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:13:21" (2/3) ... [2021-12-14 18:13:32,967 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@acb9c38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:13:32, skipping insertion in model container [2021-12-14 18:13:32,967 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:13:32" (3/3) ... [2021-12-14 18:13:32,968 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--usb--serial--usbserial.ko-entry_point.cil.out.i [2021-12-14 18:13:32,972 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-14 18:13:32,972 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-14 18:13:33,012 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-14 18:13:33,019 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-14 18:13:33,019 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-14 18:13:33,069 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) [2021-12-14 18:13:33,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2021-12-14 18:13:33,087 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:13:33,088 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] [2021-12-14 18:13:33,089 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 18:13:33,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:13:33,093 INFO L85 PathProgramCache]: Analyzing trace with hash 304341664, now seen corresponding path program 1 times [2021-12-14 18:13:33,099 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:13:33,099 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263998186] [2021-12-14 18:13:33,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:13:33,101 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:13:33,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:13:33,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 18:13:33,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:13:33,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:13:33,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:13:33,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:13:33,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:13:33,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 18:13:33,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:13:33,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:13:33,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:13:33,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:13:33,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:13:33,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-14 18:13:33,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:13:33,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:13:33,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:13:34,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:13:34,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:13:34,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-14 18:13:34,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:13:34,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:13:34,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:13:34,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:13:34,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:13:34,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-14 18:13:34,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:13:34,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:13:34,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:13:34,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:13:34,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:13:34,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-14 18:13:34,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:13:34,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:13:34,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:13:34,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:13:34,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:13:34,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-14 18:13:34,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:13:34,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:13:34,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:13:34,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:13:34,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:13:34,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-14 18:13:34,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:13:34,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:13:34,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:13:34,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:13:34,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:13:34,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-14 18:13:34,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:13:34,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:13:34,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:13:34,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:13:34,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:13:34,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-14 18:13:34,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:13:34,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:13:34,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:13:34,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:13:34,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:13:34,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-14 18:13:34,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:13:34,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:13:34,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:13:34,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:13:34,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:13:34,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-12-14 18:13:34,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:13:34,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-12-14 18:13:34,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:13:34,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-12-14 18:13:34,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:13:34,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2021-12-14 18:13:34,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:13:34,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2021-12-14 18:13:34,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:13:34,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2021-12-14 18:13:34,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:13:34,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2021-12-14 18:13:34,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:13:34,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2021-12-14 18:13:34,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:13:34,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-12-14 18:13:34,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:13:34,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2021-12-14 18:13:34,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:13:34,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2021-12-14 18:13:34,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:13:34,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2021-12-14 18:13:34,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:13:34,455 INFO L134 CoverageAnalysis]: Checked inductivity of 1100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1100 trivial. 0 not checked. [2021-12-14 18:13:34,458 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:13:34,458 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263998186] [2021-12-14 18:13:34,459 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1263998186] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:13:34,459 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:13:34,459 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-14 18:13:34,460 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969947439] [2021-12-14 18:13:34,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:13:34,465 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-14 18:13:34,466 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:13:34,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-14 18:13:34,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-14 18:13:34,494 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) [2021-12-14 18:13:38,185 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 [] [2021-12-14 18:13:40,214 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 18:13:46,194 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 18:13:52,443 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 18:13:54,482 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 18:13:59,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:13:59,782 INFO L93 Difference]: Finished difference Result 8241 states and 12466 transitions. [2021-12-14 18:13:59,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-14 18:13:59,785 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 [2021-12-14 18:13:59,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:13:59,849 INFO L225 Difference]: With dead ends: 8241 [2021-12-14 18:13:59,849 INFO L226 Difference]: Without dead ends: 5802 [2021-12-14 18:13:59,876 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 [2021-12-14 18:13:59,880 INFO L933 BasicCegarLoop]: 3731 mSDtfsCounter, 6440 mSDsluCounter, 6730 mSDsCounter, 0 mSdLazyCounter, 4028 mSolverCounterSat, 3621 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6826 SdHoareTripleChecker+Valid, 10461 SdHoareTripleChecker+Invalid, 7653 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3621 IncrementalHoareTripleChecker+Valid, 4028 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.5s IncrementalHoareTripleChecker+Time [2021-12-14 18:13:59,884 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6826 Valid, 10461 Invalid, 7653 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3621 Valid, 4028 Invalid, 4 Unknown, 0 Unchecked, 24.5s Time] [2021-12-14 18:13:59,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5802 states. [2021-12-14 18:14:00,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5802 to 5306. [2021-12-14 18:14:00,180 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) [2021-12-14 18:14:00,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5306 states to 5306 states and 7673 transitions. [2021-12-14 18:14:00,244 INFO L78 Accepts]: Start accepts. Automaton has 5306 states and 7673 transitions. Word has length 278 [2021-12-14 18:14:00,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:14:00,248 INFO L470 AbstractCegarLoop]: Abstraction has 5306 states and 7673 transitions. [2021-12-14 18:14:00,248 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) [2021-12-14 18:14:00,248 INFO L276 IsEmpty]: Start isEmpty. Operand 5306 states and 7673 transitions. [2021-12-14 18:14:00,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2021-12-14 18:14:00,254 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:14:00,255 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] [2021-12-14 18:14:00,255 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-14 18:14:00,255 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 18:14:00,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:14:00,256 INFO L85 PathProgramCache]: Analyzing trace with hash -1013821260, now seen corresponding path program 1 times [2021-12-14 18:14:00,256 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:14:00,256 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248332368] [2021-12-14 18:14:00,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:14:00,256 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:14:00,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:14:00,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 18:14:00,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:14:00,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:14:00,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:14:00,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:14:00,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:14:00,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 18:14:00,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:14:00,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:14:00,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:14:00,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:14:00,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:14:00,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-14 18:14:00,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:14:00,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:14:00,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:14:00,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:14:00,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:14:00,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-14 18:14:00,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:14:00,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:14:00,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:14:00,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:14:00,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:14:00,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-14 18:14:00,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:14:00,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:14:00,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:14:00,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:14:00,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:14:00,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-14 18:14:00,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:14:00,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:14:00,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:14:00,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:14:00,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:14:00,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-14 18:14:00,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:14:00,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:14:00,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:14:00,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:14:00,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:14:00,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-14 18:14:00,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:14:00,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:14:00,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:14:00,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:14:00,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:14:00,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-14 18:14:00,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:14:00,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:14:00,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:14:00,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:14:00,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:14:00,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-14 18:14:00,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:14:00,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:14:00,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:14:00,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:14:00,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:14:00,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-14 18:14:00,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:14:00,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:14:00,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:14:00,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:14:00,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:14:00,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-12-14 18:14:00,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:14:00,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-12-14 18:14:00,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:14:00,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-12-14 18:14:00,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:14:00,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2021-12-14 18:14:00,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:14:00,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2021-12-14 18:14:00,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:14:00,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2021-12-14 18:14:00,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:14:00,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2021-12-14 18:14:00,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:14:00,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2021-12-14 18:14:00,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:14:00,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-12-14 18:14:00,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:14:00,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2021-12-14 18:14:00,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:14:00,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2021-12-14 18:14:00,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:14:00,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2021-12-14 18:14:00,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:14:00,980 INFO L134 CoverageAnalysis]: Checked inductivity of 1100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1100 trivial. 0 not checked. [2021-12-14 18:14:00,981 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:14:00,981 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248332368] [2021-12-14 18:14:00,981 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1248332368] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:14:00,981 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:14:00,981 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-14 18:14:00,981 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347776779] [2021-12-14 18:14:00,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:14:00,983 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-14 18:14:00,983 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:14:00,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-14 18:14:00,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-14 18:14:00,984 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) [2021-12-14 18:14:03,520 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 18:14:05,556 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 18:14:16,431 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []