./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--usb--serial--usbserial.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version eb692b52 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-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-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 4437765aefc9e8e96e3710e0e55c61aa0f0e29783186331c7ab028aba8558a0d --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-19 23:30:57,497 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-19 23:30:57,499 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-19 23:30:57,529 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-19 23:30:57,530 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-19 23:30:57,531 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-19 23:30:57,534 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-19 23:30:57,538 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-19 23:30:57,539 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-19 23:30:57,543 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-19 23:30:57,543 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-19 23:30:57,544 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-19 23:30:57,545 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-19 23:30:57,546 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-19 23:30:57,548 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-19 23:30:57,549 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-19 23:30:57,550 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-19 23:30:57,551 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-19 23:30:57,553 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-19 23:30:57,556 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-19 23:30:57,557 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-19 23:30:57,558 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-19 23:30:57,558 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-19 23:30:57,559 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-19 23:30:57,560 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-19 23:30:57,566 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-19 23:30:57,567 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-19 23:30:57,567 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-19 23:30:57,568 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-19 23:30:57,568 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-19 23:30:57,569 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-19 23:30:57,569 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-19 23:30:57,571 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-19 23:30:57,571 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-19 23:30:57,572 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-19 23:30:57,572 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-19 23:30:57,572 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-19 23:30:57,573 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-19 23:30:57,573 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-19 23:30:57,573 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-19 23:30:57,574 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-19 23:30:57,575 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-19 23:30:57,576 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-19 23:30:57,599 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-19 23:30:57,599 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-19 23:30:57,600 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-19 23:30:57,600 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-19 23:30:57,600 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-19 23:30:57,601 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-19 23:30:57,601 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-19 23:30:57,601 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-19 23:30:57,601 INFO L138 SettingsManager]: * Use SBE=true [2022-07-19 23:30:57,602 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-19 23:30:57,602 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-19 23:30:57,603 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-19 23:30:57,603 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-19 23:30:57,603 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-19 23:30:57,603 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-19 23:30:57,603 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-19 23:30:57,603 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-19 23:30:57,603 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-19 23:30:57,604 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-19 23:30:57,605 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-19 23:30:57,605 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-19 23:30:57,605 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 23:30:57,605 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-19 23:30:57,605 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-19 23:30:57,605 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-19 23:30:57,605 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-19 23:30:57,606 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-19 23:30:57,606 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-19 23:30:57,606 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-19 23:30:57,606 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-19 23:30:57,606 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4437765aefc9e8e96e3710e0e55c61aa0f0e29783186331c7ab028aba8558a0d [2022-07-19 23:30:57,816 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-19 23:30:57,833 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-19 23:30:57,835 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-19 23:30:57,836 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-19 23:30:57,846 INFO L275 PluginConnector]: CDTParser initialized [2022-07-19 23:30:57,847 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--usb--serial--usbserial.ko-entry_point.cil.out.i [2022-07-19 23:30:57,912 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/923ccf42d/3a8dbb11eaef4e1faae03a929d0eb720/FLAGc1a72f515 [2022-07-19 23:30:58,488 INFO L306 CDTParser]: Found 1 translation units. [2022-07-19 23:30:58,488 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--usb--serial--usbserial.ko-entry_point.cil.out.i [2022-07-19 23:30:58,528 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/923ccf42d/3a8dbb11eaef4e1faae03a929d0eb720/FLAGc1a72f515 [2022-07-19 23:30:58,648 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/923ccf42d/3a8dbb11eaef4e1faae03a929d0eb720 [2022-07-19 23:30:58,651 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-19 23:30:58,652 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-19 23:30:58,654 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-19 23:30:58,654 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-19 23:30:58,656 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-19 23:30:58,657 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 11:30:58" (1/1) ... [2022-07-19 23:30:58,658 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d35d27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:30:58, skipping insertion in model container [2022-07-19 23:30:58,658 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 11:30:58" (1/1) ... [2022-07-19 23:30:58,663 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-19 23:30:58,759 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-19 23:30:59,568 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-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--usb--serial--usbserial.ko-entry_point.cil.out.i[119996,120009] [2022-07-19 23:31:00,394 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 23:31:00,432 INFO L203 MainTranslator]: Completed pre-run [2022-07-19 23:31:00,527 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-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--usb--serial--usbserial.ko-entry_point.cil.out.i[119996,120009] [2022-07-19 23:31:00,760 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 23:31:00,860 INFO L208 MainTranslator]: Completed translation [2022-07-19 23:31:00,861 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:31:00 WrapperNode [2022-07-19 23:31:00,861 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-19 23:31:00,862 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-19 23:31:00,863 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-19 23:31:00,863 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-19 23:31:00,868 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:31:00" (1/1) ... [2022-07-19 23:31:00,942 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:31:00" (1/1) ... [2022-07-19 23:31:01,135 INFO L137 Inliner]: procedures = 371, calls = 3017, calls flagged for inlining = 198, calls inlined = 180, statements flattened = 6286 [2022-07-19 23:31:01,136 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-19 23:31:01,137 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-19 23:31:01,137 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-19 23:31:01,137 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-19 23:31:01,150 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:31:00" (1/1) ... [2022-07-19 23:31:01,150 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:31:00" (1/1) ... [2022-07-19 23:31:01,191 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:31:00" (1/1) ... [2022-07-19 23:31:01,194 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:31:00" (1/1) ... [2022-07-19 23:31:01,287 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:31:00" (1/1) ... [2022-07-19 23:31:01,309 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:31:00" (1/1) ... [2022-07-19 23:31:01,330 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:31:00" (1/1) ... [2022-07-19 23:31:01,387 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-19 23:31:01,388 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-19 23:31:01,389 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-19 23:31:01,389 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-19 23:31:01,389 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:31:00" (1/1) ... [2022-07-19 23:31:01,400 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 23:31:01,406 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 23:31:01,416 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) [2022-07-19 23:31:01,434 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 [2022-07-19 23:31:01,446 INFO L130 BoogieDeclarations]: Found specification of procedure serial_break [2022-07-19 23:31:01,447 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_break [2022-07-19 23:31:01,447 INFO L130 BoogieDeclarations]: Found specification of procedure serial_proc_open [2022-07-19 23:31:01,447 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_proc_open [2022-07-19 23:31:01,447 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_throttle [2022-07-19 23:31:01,447 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_throttle [2022-07-19 23:31:01,447 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_write_start [2022-07-19 23:31:01,448 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_write_start [2022-07-19 23:31:01,448 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2022-07-19 23:31:01,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2022-07-19 23:31:01,448 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_bulk_urb_14 [2022-07-19 23:31:01,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_bulk_urb_14 [2022-07-19 23:31:01,448 INFO L130 BoogieDeclarations]: Found specification of procedure usb_translate_errors [2022-07-19 23:31:01,448 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_translate_errors [2022-07-19 23:31:01,448 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-19 23:31:01,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-19 23:31:01,449 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_int [2022-07-19 23:31:01,449 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_int [2022-07-19 23:31:01,449 INFO L130 BoogieDeclarations]: Found specification of procedure serial_port_dtr_rts [2022-07-19 23:31:01,449 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_port_dtr_rts [2022-07-19 23:31:01,449 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_device_remove [2022-07-19 23:31:01,449 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_device_remove [2022-07-19 23:31:01,449 INFO L130 BoogieDeclarations]: Found specification of procedure new_id_show [2022-07-19 23:31:01,449 INFO L138 BoogieDeclarations]: Found implementation of procedure new_id_show [2022-07-19 23:31:01,449 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2022-07-19 23:31:01,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2022-07-19 23:31:01,450 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_write [2022-07-19 23:31:01,450 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_write [2022-07-19 23:31:01,450 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-07-19 23:31:01,450 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-07-19 23:31:01,450 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2022-07-19 23:31:01,450 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2022-07-19 23:31:01,450 INFO L130 BoogieDeclarations]: Found specification of procedure serial_chars_in_buffer [2022-07-19 23:31:01,450 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_chars_in_buffer [2022-07-19 23:31:01,451 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-19 23:31:01,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-19 23:31:01,451 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_maxp [2022-07-19 23:31:01,451 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_maxp [2022-07-19 23:31:01,451 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2022-07-19 23:31:01,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2022-07-19 23:31:01,451 INFO L130 BoogieDeclarations]: Found specification of procedure char_buf_ptr [2022-07-19 23:31:01,451 INFO L138 BoogieDeclarations]: Found implementation of procedure char_buf_ptr [2022-07-19 23:31:01,451 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_driver_5 [2022-07-19 23:31:01,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_5 [2022-07-19 23:31:01,452 INFO L130 BoogieDeclarations]: Found specification of procedure serial_port_activate [2022-07-19 23:31:01,452 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_port_activate [2022-07-19 23:31:01,452 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit_unlock [2022-07-19 23:31:01,452 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit_unlock [2022-07-19 23:31:01,452 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-07-19 23:31:01,452 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-07-19 23:31:01,452 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-19 23:31:01,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-19 23:31:01,453 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_4 [2022-07-19 23:31:01,453 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_4 [2022-07-19 23:31:01,453 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_suspend [2022-07-19 23:31:01,453 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_suspend [2022-07-19 23:31:01,453 INFO L130 BoogieDeclarations]: Found specification of procedure usb_store_new_id [2022-07-19 23:31:01,453 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_store_new_id [2022-07-19 23:31:01,453 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_in [2022-07-19 23:31:01,454 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_in [2022-07-19 23:31:01,454 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_is_int_in [2022-07-19 23:31:01,454 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_is_int_in [2022-07-19 23:31:01,454 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-07-19 23:31:01,454 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-07-19 23:31:01,454 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-19 23:31:01,454 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-19 23:31:01,455 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_port_poison_urbs [2022-07-19 23:31:01,455 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_port_poison_urbs [2022-07-19 23:31:01,455 INFO L130 BoogieDeclarations]: Found specification of procedure serial_hangup [2022-07-19 23:31:01,455 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_hangup [2022-07-19 23:31:01,455 INFO L130 BoogieDeclarations]: Found specification of procedure serial_ioctl [2022-07-19 23:31:01,455 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_ioctl [2022-07-19 23:31:01,455 INFO L130 BoogieDeclarations]: Found specification of procedure serial_write_room [2022-07-19 23:31:01,455 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_write_room [2022-07-19 23:31:01,455 INFO L130 BoogieDeclarations]: Found specification of procedure new_id_store [2022-07-19 23:31:01,456 INFO L138 BoogieDeclarations]: Found implementation of procedure new_id_store [2022-07-19 23:31:01,456 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___2 [2022-07-19 23:31:01,456 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___2 [2022-07-19 23:31:01,456 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_debug_data [2022-07-19 23:31:01,456 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_debug_data [2022-07-19 23:31:01,456 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2022-07-19 23:31:01,456 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2022-07-19 23:31:01,456 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-19 23:31:01,457 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-19 23:31:01,457 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-19 23:31:01,457 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-07-19 23:31:01,457 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-07-19 23:31:01,457 INFO L130 BoogieDeclarations]: Found specification of procedure serial_unthrottle [2022-07-19 23:31:01,457 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_unthrottle [2022-07-19 23:31:01,457 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unpoison_urb [2022-07-19 23:31:01,457 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unpoison_urb [2022-07-19 23:31:01,457 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_submit_read_urbs [2022-07-19 23:31:01,458 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_submit_read_urbs [2022-07-19 23:31:01,458 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_device_probe [2022-07-19 23:31:01,458 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_device_probe [2022-07-19 23:31:01,458 INFO L130 BoogieDeclarations]: Found specification of procedure module_put [2022-07-19 23:31:01,458 INFO L138 BoogieDeclarations]: Found implementation of procedure module_put [2022-07-19 23:31:01,458 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-19 23:31:01,458 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2022-07-19 23:31:01,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2022-07-19 23:31:01,459 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2022-07-19 23:31:01,459 INFO L130 BoogieDeclarations]: Found specification of procedure serial_get_icount [2022-07-19 23:31:01,459 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_get_icount [2022-07-19 23:31:01,459 INFO L130 BoogieDeclarations]: Found specification of procedure serial_throttle [2022-07-19 23:31:01,459 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_throttle [2022-07-19 23:31:01,459 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2022-07-19 23:31:01,459 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2022-07-19 23:31:01,459 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-07-19 23:31:01,459 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-07-19 23:31:01,460 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_interface [2022-07-19 23:31:01,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_interface [2022-07-19 23:31:01,460 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_submit_read_urb [2022-07-19 23:31:01,460 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_submit_read_urb [2022-07-19 23:31:01,460 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-19 23:31:01,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-19 23:31:01,460 INFO L130 BoogieDeclarations]: Found specification of procedure try_module_get [2022-07-19 23:31:01,460 INFO L138 BoogieDeclarations]: Found implementation of procedure try_module_get [2022-07-19 23:31:01,460 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~X~int~TO~int [2022-07-19 23:31:01,461 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~X~int~TO~int [2022-07-19 23:31:01,461 INFO L130 BoogieDeclarations]: Found specification of procedure put_tty_driver [2022-07-19 23:31:01,461 INFO L138 BoogieDeclarations]: Found implementation of procedure put_tty_driver [2022-07-19 23:31:01,461 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-07-19 23:31:01,461 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-07-19 23:31:01,461 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_resume [2022-07-19 23:31:01,461 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_resume [2022-07-19 23:31:01,462 INFO L130 BoogieDeclarations]: Found specification of procedure serial_cleanup [2022-07-19 23:31:01,462 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_cleanup [2022-07-19 23:31:01,462 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-07-19 23:31:01,462 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-07-19 23:31:01,462 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-07-19 23:31:01,462 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-07-19 23:31:01,462 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-07-19 23:31:01,462 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-07-19 23:31:01,462 INFO L130 BoogieDeclarations]: Found specification of procedure serial_port_carrier_raised [2022-07-19 23:31:01,463 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_port_carrier_raised [2022-07-19 23:31:01,463 INFO L130 BoogieDeclarations]: Found specification of procedure __kfifo_uint_must_check_helper [2022-07-19 23:31:01,463 INFO L138 BoogieDeclarations]: Found implementation of procedure __kfifo_uint_must_check_helper [2022-07-19 23:31:01,463 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_interface [2022-07-19 23:31:01,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_interface [2022-07-19 23:31:01,463 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-07-19 23:31:01,463 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-07-19 23:31:01,463 INFO L130 BoogieDeclarations]: Found specification of procedure serial_tiocmget [2022-07-19 23:31:01,463 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_tiocmget [2022-07-19 23:31:01,464 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_write_bulk_callback [2022-07-19 23:31:01,464 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_write_bulk_callback [2022-07-19 23:31:01,464 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-07-19 23:31:01,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-07-19 23:31:01,464 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_probe [2022-07-19 23:31:01,464 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_probe [2022-07-19 23:31:01,464 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-07-19 23:31:01,464 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-07-19 23:31:01,464 INFO L130 BoogieDeclarations]: Found specification of procedure jiffies_to_msecs [2022-07-19 23:31:01,465 INFO L138 BoogieDeclarations]: Found implementation of procedure jiffies_to_msecs [2022-07-19 23:31:01,465 INFO L130 BoogieDeclarations]: Found specification of procedure bus_unregister [2022-07-19 23:31:01,465 INFO L138 BoogieDeclarations]: Found implementation of procedure bus_unregister [2022-07-19 23:31:01,465 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_reset_resume [2022-07-19 23:31:01,465 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_reset_resume [2022-07-19 23:31:01,465 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_read_bulk_callback [2022-07-19 23:31:01,465 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_read_bulk_callback [2022-07-19 23:31:01,465 INFO L130 BoogieDeclarations]: Found specification of procedure usb_poison_urb [2022-07-19 23:31:01,465 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_poison_urb [2022-07-19 23:31:01,466 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-19 23:31:01,466 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2022-07-19 23:31:01,466 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2022-07-19 23:31:01,466 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_bulk [2022-07-19 23:31:01,466 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_bulk [2022-07-19 23:31:01,466 INFO L130 BoogieDeclarations]: Found specification of procedure serial_wait_until_sent [2022-07-19 23:31:01,466 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_wait_until_sent [2022-07-19 23:31:01,466 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-07-19 23:31:01,466 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-07-19 23:31:01,467 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_device_match [2022-07-19 23:31:01,467 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_device_match [2022-07-19 23:31:01,467 INFO L130 BoogieDeclarations]: Found specification of procedure serial_open [2022-07-19 23:31:01,467 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_open [2022-07-19 23:31:01,467 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-07-19 23:31:01,467 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-07-19 23:31:01,467 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2022-07-19 23:31:01,467 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2022-07-19 23:31:01,467 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_held [2022-07-19 23:31:01,468 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_held [2022-07-19 23:31:01,468 INFO L130 BoogieDeclarations]: Found specification of procedure serial_port_shutdown [2022-07-19 23:31:01,468 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_port_shutdown [2022-07-19 23:31:01,468 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-19 23:31:01,468 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-19 23:31:01,468 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_41 [2022-07-19 23:31:01,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_41 [2022-07-19 23:31:01,468 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_42 [2022-07-19 23:31:01,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_42 [2022-07-19 23:31:01,469 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~pm_message_t~0~TO~int [2022-07-19 23:31:01,469 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~pm_message_t~0~TO~int [2022-07-19 23:31:01,469 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-19 23:31:01,469 INFO L130 BoogieDeclarations]: Found specification of procedure serial_set_termios [2022-07-19 23:31:01,469 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_set_termios [2022-07-19 23:31:01,469 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_resume [2022-07-19 23:31:01,469 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_resume [2022-07-19 23:31:01,469 INFO L130 BoogieDeclarations]: Found specification of procedure single_release [2022-07-19 23:31:01,469 INFO L138 BoogieDeclarations]: Found implementation of procedure single_release [2022-07-19 23:31:01,469 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-19 23:31:01,470 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-19 23:31:01,470 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_disconnect [2022-07-19 23:31:01,470 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_disconnect [2022-07-19 23:31:01,470 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_unthrottle [2022-07-19 23:31:01,470 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_unthrottle [2022-07-19 23:31:01,470 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_port_get_by_minor [2022-07-19 23:31:01,470 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_port_get_by_minor [2022-07-19 23:31:01,470 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-19 23:31:01,470 INFO L130 BoogieDeclarations]: Found specification of procedure serial_install [2022-07-19 23:31:01,471 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_install [2022-07-19 23:31:01,471 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-19 23:31:01,471 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-07-19 23:31:01,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-07-19 23:31:01,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-19 23:31:01,471 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-07-19 23:31:01,471 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_int_urb_18 [2022-07-19 23:31:01,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_int_urb_18 [2022-07-19 23:31:01,471 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put_4 [2022-07-19 23:31:01,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put_4 [2022-07-19 23:31:01,472 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-07-19 23:31:01,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-07-19 23:31:01,472 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-07-19 23:31:01,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-07-19 23:31:01,472 INFO L130 BoogieDeclarations]: Found specification of procedure serial_tiocmset [2022-07-19 23:31:01,472 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_tiocmset [2022-07-19 23:31:01,472 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-07-19 23:31:01,472 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-07-19 23:31:01,473 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2022-07-19 23:31:01,473 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2022-07-19 23:31:01,473 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata_22 [2022-07-19 23:31:01,473 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata_22 [2022-07-19 23:31:01,473 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_put [2022-07-19 23:31:01,473 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_put [2022-07-19 23:31:01,473 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_unpoison_port_urbs [2022-07-19 23:31:01,473 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_unpoison_port_urbs [2022-07-19 23:31:01,473 INFO L130 BoogieDeclarations]: Found specification of procedure serial_write [2022-07-19 23:31:01,474 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_write [2022-07-19 23:31:01,474 INFO L130 BoogieDeclarations]: Found specification of procedure idr_remove [2022-07-19 23:31:01,474 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_remove [2022-07-19 23:31:01,474 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-07-19 23:31:01,474 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-07-19 23:31:01,474 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_serial [2022-07-19 23:31:01,474 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_serial [2022-07-19 23:31:01,474 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-07-19 23:31:01,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-07-19 23:31:01,475 INFO L130 BoogieDeclarations]: Found specification of procedure get_iface_id [2022-07-19 23:31:01,475 INFO L138 BoogieDeclarations]: Found implementation of procedure get_iface_id [2022-07-19 23:31:01,475 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-07-19 23:31:01,475 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-07-19 23:31:01,475 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2022-07-19 23:31:01,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2022-07-19 23:31:01,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-19 23:31:01,475 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-19 23:31:01,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-19 23:31:01,476 INFO L130 BoogieDeclarations]: Found specification of procedure tty_unregister_driver [2022-07-19 23:31:01,476 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_unregister_driver [2022-07-19 23:31:01,476 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_out [2022-07-19 23:31:01,476 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_out [2022-07-19 23:31:01,476 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-07-19 23:31:01,476 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-07-19 23:31:02,083 INFO L234 CfgBuilder]: Building ICFG [2022-07-19 23:31:02,086 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-19 23:31:02,450 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-19 23:31:03,085 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___2FINAL: assume true; [2022-07-19 23:31:08,312 INFO L275 CfgBuilder]: Performing block encoding [2022-07-19 23:31:08,340 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-19 23:31:08,340 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-19 23:31:08,344 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 11:31:08 BoogieIcfgContainer [2022-07-19 23:31:08,344 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-19 23:31:08,346 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-19 23:31:08,346 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-19 23:31:08,349 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-19 23:31:08,349 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 11:30:58" (1/3) ... [2022-07-19 23:31:08,350 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@581b9de0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 11:31:08, skipping insertion in model container [2022-07-19 23:31:08,350 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:31:00" (2/3) ... [2022-07-19 23:31:08,350 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@581b9de0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 11:31:08, skipping insertion in model container [2022-07-19 23:31:08,350 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 11:31:08" (3/3) ... [2022-07-19 23:31:08,352 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--usb--serial--usbserial.ko-entry_point.cil.out.i [2022-07-19 23:31:08,362 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-19 23:31:08,362 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-19 23:31:08,446 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-19 23:31:08,451 INFO L357 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, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@23aafdd8, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@c4f249c [2022-07-19 23:31:08,451 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-19 23:31:08,460 INFO L276 IsEmpty]: Start isEmpty. Operand has 2105 states, 1518 states have (on average 1.3399209486166008) internal successors, (2034), 1559 states have internal predecessors, (2034), 465 states have call successors, (465), 122 states have call predecessors, (465), 120 states have return successors, (451), 440 states have call predecessors, (451), 451 states have call successors, (451) [2022-07-19 23:31:08,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-07-19 23:31:08,483 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 23:31:08,484 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 23:31:08,484 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 23:31:08,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 23:31:08,489 INFO L85 PathProgramCache]: Analyzing trace with hash -1989796788, now seen corresponding path program 1 times [2022-07-19 23:31:08,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 23:31:08,496 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130933396] [2022-07-19 23:31:08,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:31:08,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 23:31:08,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:31:09,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 23:31:09,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:31:09,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-19 23:31:09,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:31:09,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-19 23:31:09,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:31:09,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-19 23:31:09,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:31:09,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-19 23:31:09,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:31:09,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-19 23:31:09,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:31:09,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-19 23:31:09,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:31:09,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-19 23:31:09,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:31:09,118 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-07-19 23:31:09,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 23:31:09,119 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130933396] [2022-07-19 23:31:09,119 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [130933396] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 23:31:09,120 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 23:31:09,120 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 23:31:09,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713512253] [2022-07-19 23:31:09,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 23:31:09,128 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-19 23:31:09,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 23:31:09,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-19 23:31:09,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-19 23:31:09,158 INFO L87 Difference]: Start difference. First operand has 2105 states, 1518 states have (on average 1.3399209486166008) internal successors, (2034), 1559 states have internal predecessors, (2034), 465 states have call successors, (465), 122 states have call predecessors, (465), 120 states have return successors, (451), 440 states have call predecessors, (451), 451 states have call successors, (451) Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2022-07-19 23:31:12,633 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 [] [2022-07-19 23:31:16,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 23:31:16,872 INFO L93 Difference]: Finished difference Result 6691 states and 9849 transitions. [2022-07-19 23:31:16,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 23:31:16,876 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 69 [2022-07-19 23:31:16,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 23:31:16,916 INFO L225 Difference]: With dead ends: 6691 [2022-07-19 23:31:16,916 INFO L226 Difference]: Without dead ends: 4554 [2022-07-19 23:31:16,933 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-19 23:31:16,935 INFO L413 NwaCegarLoop]: 3155 mSDtfsCounter, 4027 mSDsluCounter, 3662 mSDsCounter, 0 mSdLazyCounter, 2015 mSolverCounterSat, 1412 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4348 SdHoareTripleChecker+Valid, 6817 SdHoareTripleChecker+Invalid, 3428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1412 IncrementalHoareTripleChecker+Valid, 2015 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2022-07-19 23:31:16,935 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4348 Valid, 6817 Invalid, 3428 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1412 Valid, 2015 Invalid, 1 Unknown, 0 Unchecked, 7.3s Time] [2022-07-19 23:31:16,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4554 states. [2022-07-19 23:31:17,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4554 to 4048. [2022-07-19 23:31:17,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4048 states, 2945 states have (on average 1.33276740237691) internal successors, (3925), 2988 states have internal predecessors, (3925), 866 states have call successors, (866), 237 states have call predecessors, (866), 236 states have return successors, (859), 837 states have call predecessors, (859), 859 states have call successors, (859) [2022-07-19 23:31:17,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4048 states to 4048 states and 5650 transitions. [2022-07-19 23:31:17,154 INFO L78 Accepts]: Start accepts. Automaton has 4048 states and 5650 transitions. Word has length 69 [2022-07-19 23:31:17,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 23:31:17,156 INFO L495 AbstractCegarLoop]: Abstraction has 4048 states and 5650 transitions. [2022-07-19 23:31:17,156 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2022-07-19 23:31:17,156 INFO L276 IsEmpty]: Start isEmpty. Operand 4048 states and 5650 transitions. [2022-07-19 23:31:17,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-07-19 23:31:17,165 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 23:31:17,166 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 23:31:17,166 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-19 23:31:17,166 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 23:31:17,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 23:31:17,167 INFO L85 PathProgramCache]: Analyzing trace with hash -2119451424, now seen corresponding path program 1 times [2022-07-19 23:31:17,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 23:31:17,167 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679926803] [2022-07-19 23:31:17,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:31:17,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 23:31:17,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:31:17,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 23:31:17,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:31:17,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-19 23:31:17,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:31:17,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-19 23:31:17,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:31:17,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-19 23:31:17,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:31:17,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-19 23:31:17,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:31:17,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-19 23:31:17,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:31:17,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-19 23:31:17,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:31:17,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-19 23:31:17,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:31:17,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-07-19 23:31:17,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:31:17,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-19 23:31:17,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:31:17,444 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-07-19 23:31:17,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 23:31:17,445 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679926803] [2022-07-19 23:31:17,445 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [679926803] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 23:31:17,445 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 23:31:17,445 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 23:31:17,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39396225] [2022-07-19 23:31:17,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 23:31:17,446 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-19 23:31:17,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 23:31:17,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-19 23:31:17,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-19 23:31:17,451 INFO L87 Difference]: Start difference. First operand 4048 states and 5650 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-07-19 23:31:20,752 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 [] [2022-07-19 23:31:25,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 23:31:25,987 INFO L93 Difference]: Finished difference Result 12746 states and 17994 transitions. [2022-07-19 23:31:25,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 23:31:25,987 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 89 [2022-07-19 23:31:25,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 23:31:26,034 INFO L225 Difference]: With dead ends: 12746 [2022-07-19 23:31:26,035 INFO L226 Difference]: Without dead ends: 8719 [2022-07-19 23:31:26,053 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-19 23:31:26,054 INFO L413 NwaCegarLoop]: 3103 mSDtfsCounter, 3824 mSDsluCounter, 3543 mSDsCounter, 0 mSdLazyCounter, 2107 mSolverCounterSat, 1358 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4153 SdHoareTripleChecker+Valid, 6646 SdHoareTripleChecker+Invalid, 3466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1358 IncrementalHoareTripleChecker+Valid, 2107 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2022-07-19 23:31:26,054 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4153 Valid, 6646 Invalid, 3466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1358 Valid, 2107 Invalid, 1 Unknown, 0 Unchecked, 8.1s Time] [2022-07-19 23:31:26,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8719 states. [2022-07-19 23:31:26,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8719 to 7670. [2022-07-19 23:31:26,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7670 states, 5584 states have (on average 1.3273638968481376) internal successors, (7412), 5665 states have internal predecessors, (7412), 1627 states have call successors, (1627), 459 states have call predecessors, (1627), 458 states have return successors, (1620), 1575 states have call predecessors, (1620), 1620 states have call successors, (1620) [2022-07-19 23:31:26,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7670 states to 7670 states and 10659 transitions. [2022-07-19 23:31:26,350 INFO L78 Accepts]: Start accepts. Automaton has 7670 states and 10659 transitions. Word has length 89 [2022-07-19 23:31:26,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 23:31:26,352 INFO L495 AbstractCegarLoop]: Abstraction has 7670 states and 10659 transitions. [2022-07-19 23:31:26,352 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-07-19 23:31:26,352 INFO L276 IsEmpty]: Start isEmpty. Operand 7670 states and 10659 transitions. [2022-07-19 23:31:26,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-07-19 23:31:26,356 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 23:31:26,356 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 23:31:26,356 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-19 23:31:26,356 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 23:31:26,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 23:31:26,357 INFO L85 PathProgramCache]: Analyzing trace with hash -1481995065, now seen corresponding path program 1 times [2022-07-19 23:31:26,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 23:31:26,357 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150793543] [2022-07-19 23:31:26,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:31:26,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 23:31:26,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:31:26,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 23:31:26,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:31:26,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-19 23:31:26,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:31:26,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-19 23:31:26,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:31:26,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-19 23:31:26,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:31:26,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-19 23:31:26,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:31:26,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-19 23:31:26,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:31:26,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-19 23:31:26,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:31:26,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-19 23:31:26,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:31:26,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-07-19 23:31:26,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:31:26,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-19 23:31:26,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:31:26,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:31:26,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:31:26,636 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2022-07-19 23:31:26,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 23:31:26,636 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150793543] [2022-07-19 23:31:26,637 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1150793543] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 23:31:26,640 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 23:31:26,640 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-19 23:31:26,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880808256] [2022-07-19 23:31:26,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 23:31:26,641 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 23:31:26,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 23:31:26,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 23:31:26,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-19 23:31:26,642 INFO L87 Difference]: Start difference. First operand 7670 states and 10659 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (14), 4 states have call predecessors, (14), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-07-19 23:31:30,139 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 [] [2022-07-19 23:31:38,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 23:31:38,199 INFO L93 Difference]: Finished difference Result 29996 states and 43373 transitions. [2022-07-19 23:31:38,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-19 23:31:38,200 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (14), 4 states have call predecessors, (14), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 97 [2022-07-19 23:31:38,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 23:31:38,313 INFO L225 Difference]: With dead ends: 29996 [2022-07-19 23:31:38,314 INFO L226 Difference]: Without dead ends: 22347 [2022-07-19 23:31:38,351 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-07-19 23:31:38,355 INFO L413 NwaCegarLoop]: 3152 mSDtfsCounter, 7748 mSDsluCounter, 4534 mSDsCounter, 0 mSdLazyCounter, 4346 mSolverCounterSat, 4145 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8207 SdHoareTripleChecker+Valid, 7686 SdHoareTripleChecker+Invalid, 8492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4145 IncrementalHoareTripleChecker+Valid, 4346 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.9s IncrementalHoareTripleChecker+Time [2022-07-19 23:31:38,356 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8207 Valid, 7686 Invalid, 8492 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4145 Valid, 4346 Invalid, 1 Unknown, 0 Unchecked, 10.9s Time] [2022-07-19 23:31:38,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22347 states. [2022-07-19 23:31:38,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22347 to 15170. [2022-07-19 23:31:39,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15170 states, 11050 states have (on average 1.3270588235294118) internal successors, (14664), 11207 states have internal predecessors, (14664), 3207 states have call successors, (3207), 913 states have call predecessors, (3207), 912 states have return successors, (3200), 3109 states have call predecessors, (3200), 3200 states have call successors, (3200) [2022-07-19 23:31:39,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15170 states to 15170 states and 21071 transitions. [2022-07-19 23:31:39,068 INFO L78 Accepts]: Start accepts. Automaton has 15170 states and 21071 transitions. Word has length 97 [2022-07-19 23:31:39,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 23:31:39,069 INFO L495 AbstractCegarLoop]: Abstraction has 15170 states and 21071 transitions. [2022-07-19 23:31:39,070 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (14), 4 states have call predecessors, (14), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-07-19 23:31:39,070 INFO L276 IsEmpty]: Start isEmpty. Operand 15170 states and 21071 transitions. [2022-07-19 23:31:39,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-07-19 23:31:39,074 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 23:31:39,074 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 23:31:39,074 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-19 23:31:39,074 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 23:31:39,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 23:31:39,075 INFO L85 PathProgramCache]: Analyzing trace with hash -1715328829, now seen corresponding path program 1 times [2022-07-19 23:31:39,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 23:31:39,075 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625940477] [2022-07-19 23:31:39,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:31:39,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 23:31:39,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:31:39,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 23:31:39,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:31:39,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-19 23:31:39,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:31:39,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-19 23:31:39,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:31:39,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-19 23:31:39,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:31:39,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-19 23:31:39,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:31:39,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-19 23:31:39,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:31:39,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-19 23:31:39,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:31:39,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-19 23:31:39,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:31:39,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-19 23:31:39,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:31:39,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:31:39,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:31:39,336 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-07-19 23:31:39,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 23:31:39,337 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1625940477] [2022-07-19 23:31:39,337 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1625940477] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 23:31:39,337 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 23:31:39,337 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-19 23:31:39,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624612818] [2022-07-19 23:31:39,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 23:31:39,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 23:31:39,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 23:31:39,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 23:31:39,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-19 23:31:39,341 INFO L87 Difference]: Start difference. First operand 15170 states and 21071 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-07-19 23:31:41,938 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 [] [2022-07-19 23:31:51,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 23:31:51,428 INFO L93 Difference]: Finished difference Result 58956 states and 86037 transitions. [2022-07-19 23:31:51,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-19 23:31:51,429 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 93 [2022-07-19 23:31:51,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 23:31:51,714 INFO L225 Difference]: With dead ends: 58956 [2022-07-19 23:31:51,714 INFO L226 Difference]: Without dead ends: 43807 [2022-07-19 23:31:51,770 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-07-19 23:31:51,772 INFO L413 NwaCegarLoop]: 3082 mSDtfsCounter, 7606 mSDsluCounter, 4642 mSDsCounter, 0 mSdLazyCounter, 4404 mSolverCounterSat, 4123 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8043 SdHoareTripleChecker+Valid, 7724 SdHoareTripleChecker+Invalid, 8528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4123 IncrementalHoareTripleChecker+Valid, 4404 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.9s IncrementalHoareTripleChecker+Time [2022-07-19 23:31:51,773 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8043 Valid, 7724 Invalid, 8528 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4123 Valid, 4404 Invalid, 1 Unknown, 0 Unchecked, 10.9s Time] [2022-07-19 23:31:51,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43807 states. [2022-07-19 23:31:53,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43807 to 38538. [2022-07-19 23:31:53,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38538 states, 28142 states have (on average 1.3164664913652193) internal successors, (37048), 28354 states have internal predecessors, (37048), 7991 states have call successors, (7991), 1797 states have call predecessors, (7991), 2404 states have return successors, (10352), 8534 states have call predecessors, (10352), 7984 states have call successors, (10352) [2022-07-19 23:31:53,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38538 states to 38538 states and 55391 transitions. [2022-07-19 23:31:53,382 INFO L78 Accepts]: Start accepts. Automaton has 38538 states and 55391 transitions. Word has length 93 [2022-07-19 23:31:53,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 23:31:53,383 INFO L495 AbstractCegarLoop]: Abstraction has 38538 states and 55391 transitions. [2022-07-19 23:31:53,383 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-07-19 23:31:53,383 INFO L276 IsEmpty]: Start isEmpty. Operand 38538 states and 55391 transitions. [2022-07-19 23:31:53,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-07-19 23:31:53,385 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 23:31:53,385 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 23:31:53,385 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-19 23:31:53,385 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 23:31:53,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 23:31:53,386 INFO L85 PathProgramCache]: Analyzing trace with hash -2146301045, now seen corresponding path program 1 times [2022-07-19 23:31:53,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 23:31:53,386 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1967472047] [2022-07-19 23:31:53,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:31:53,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 23:31:53,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:31:53,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 23:31:53,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:31:53,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-19 23:31:53,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:31:53,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-19 23:31:53,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:31:53,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-19 23:31:53,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:31:53,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-19 23:31:53,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:31:53,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-19 23:31:53,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:31:53,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-19 23:31:53,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:31:53,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-19 23:31:53,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:31:53,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-19 23:31:53,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:31:53,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-19 23:31:53,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:31:53,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:31:53,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:31:53,742 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-07-19 23:31:53,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 23:31:53,743 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1967472047] [2022-07-19 23:31:53,743 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1967472047] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 23:31:53,743 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 23:31:53,743 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-19 23:31:53,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319342301] [2022-07-19 23:31:53,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 23:31:53,744 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 23:31:53,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 23:31:53,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 23:31:53,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-19 23:31:53,746 INFO L87 Difference]: Start difference. First operand 38538 states and 55391 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-07-19 23:32:01,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 23:32:01,947 INFO L93 Difference]: Finished difference Result 129915 states and 206472 transitions. [2022-07-19 23:32:01,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-19 23:32:01,948 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 92 [2022-07-19 23:32:01,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 23:32:02,697 INFO L225 Difference]: With dead ends: 129915 [2022-07-19 23:32:02,698 INFO L226 Difference]: Without dead ends: 91398 [2022-07-19 23:32:02,943 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-07-19 23:32:02,944 INFO L413 NwaCegarLoop]: 3293 mSDtfsCounter, 5912 mSDsluCounter, 3998 mSDsCounter, 0 mSdLazyCounter, 2153 mSolverCounterSat, 2844 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6223 SdHoareTripleChecker+Valid, 7291 SdHoareTripleChecker+Invalid, 4997 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2844 IncrementalHoareTripleChecker+Valid, 2153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-07-19 23:32:02,944 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6223 Valid, 7291 Invalid, 4997 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2844 Valid, 2153 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2022-07-19 23:32:03,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91398 states. [2022-07-19 23:32:06,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91398 to 83018. [2022-07-19 23:32:06,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83018 states, 60770 states have (on average 1.3114530195820306) internal successors, (79697), 61116 states have internal predecessors, (79697), 16759 states have call successors, (16759), 3593 states have call predecessors, (16759), 5488 states have return successors, (29268), 18636 states have call predecessors, (29268), 16752 states have call successors, (29268) [2022-07-19 23:32:06,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83018 states to 83018 states and 125724 transitions. [2022-07-19 23:32:07,012 INFO L78 Accepts]: Start accepts. Automaton has 83018 states and 125724 transitions. Word has length 92 [2022-07-19 23:32:07,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 23:32:07,012 INFO L495 AbstractCegarLoop]: Abstraction has 83018 states and 125724 transitions. [2022-07-19 23:32:07,013 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-07-19 23:32:07,013 INFO L276 IsEmpty]: Start isEmpty. Operand 83018 states and 125724 transitions. [2022-07-19 23:32:07,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-07-19 23:32:07,016 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 23:32:07,017 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 23:32:07,017 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-19 23:32:07,017 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 23:32:07,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 23:32:07,017 INFO L85 PathProgramCache]: Analyzing trace with hash -2112276362, now seen corresponding path program 1 times [2022-07-19 23:32:07,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 23:32:07,018 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028928933] [2022-07-19 23:32:07,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:32:07,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 23:32:07,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:32:07,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 23:32:07,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:32:07,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-19 23:32:07,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:32:07,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-19 23:32:07,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:32:07,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-19 23:32:07,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:32:07,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-19 23:32:07,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:32:07,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-19 23:32:07,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:32:07,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-19 23:32:07,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:32:07,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-19 23:32:07,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:32:07,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-19 23:32:07,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:32:07,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-19 23:32:07,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:32:07,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:32:07,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:32:07,498 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-07-19 23:32:07,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 23:32:07,499 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028928933] [2022-07-19 23:32:07,499 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2028928933] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 23:32:07,499 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 23:32:07,499 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-19 23:32:07,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225175498] [2022-07-19 23:32:07,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 23:32:07,500 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 23:32:07,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 23:32:07,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 23:32:07,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-19 23:32:07,501 INFO L87 Difference]: Start difference. First operand 83018 states and 125724 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-07-19 23:32:20,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 23:32:20,782 INFO L93 Difference]: Finished difference Result 265587 states and 452903 transitions. [2022-07-19 23:32:20,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-19 23:32:20,783 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 93 [2022-07-19 23:32:20,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 23:32:22,382 INFO L225 Difference]: With dead ends: 265587 [2022-07-19 23:32:22,382 INFO L226 Difference]: Without dead ends: 182590 [2022-07-19 23:32:23,173 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-07-19 23:32:23,174 INFO L413 NwaCegarLoop]: 3474 mSDtfsCounter, 5662 mSDsluCounter, 4118 mSDsCounter, 0 mSdLazyCounter, 2181 mSolverCounterSat, 2730 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5978 SdHoareTripleChecker+Valid, 7592 SdHoareTripleChecker+Invalid, 4911 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2730 IncrementalHoareTripleChecker+Valid, 2181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-07-19 23:32:23,175 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5978 Valid, 7592 Invalid, 4911 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2730 Valid, 2181 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2022-07-19 23:32:23,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182590 states. [2022-07-19 23:32:29,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182590 to 167915. [2022-07-19 23:32:30,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167915 states, 122891 states have (on average 1.3083871072739257) internal successors, (160789), 123505 states have internal predecessors, (160789), 33751 states have call successors, (33751), 7185 states have call predecessors, (33751), 11272 states have return successors, (74860), 37880 states have call predecessors, (74860), 33744 states have call successors, (74860) [2022-07-19 23:32:32,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167915 states to 167915 states and 269400 transitions. [2022-07-19 23:32:32,311 INFO L78 Accepts]: Start accepts. Automaton has 167915 states and 269400 transitions. Word has length 93 [2022-07-19 23:32:32,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 23:32:32,312 INFO L495 AbstractCegarLoop]: Abstraction has 167915 states and 269400 transitions. [2022-07-19 23:32:32,312 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-07-19 23:32:32,312 INFO L276 IsEmpty]: Start isEmpty. Operand 167915 states and 269400 transitions. [2022-07-19 23:32:32,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-07-19 23:32:32,314 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 23:32:32,314 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 23:32:32,315 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-19 23:32:32,315 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 23:32:32,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 23:32:32,315 INFO L85 PathProgramCache]: Analyzing trace with hash -1057506322, now seen corresponding path program 1 times [2022-07-19 23:32:32,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 23:32:32,316 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892075937] [2022-07-19 23:32:32,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:32:32,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 23:32:32,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:32:32,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 23:32:32,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:32:32,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-19 23:32:32,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:32:32,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-19 23:32:32,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:32:32,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-19 23:32:32,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:32:32,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-19 23:32:32,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:32:32,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-19 23:32:32,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:32:32,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-19 23:32:32,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:32:32,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-19 23:32:32,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:32:32,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-19 23:32:32,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:32:32,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-19 23:32:32,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:32:32,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:32:32,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:32:32,806 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-07-19 23:32:32,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 23:32:32,807 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1892075937] [2022-07-19 23:32:32,816 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1892075937] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 23:32:32,816 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 23:32:32,816 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-19 23:32:32,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035718778] [2022-07-19 23:32:32,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 23:32:32,817 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 23:32:32,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 23:32:32,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 23:32:32,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-19 23:32:32,818 INFO L87 Difference]: Start difference. First operand 167915 states and 269400 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-07-19 23:32:35,437 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 [] [2022-07-19 23:32:46,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 23:32:46,983 INFO L93 Difference]: Finished difference Result 182588 states and 299012 transitions. [2022-07-19 23:32:46,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-19 23:32:46,984 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 94 [2022-07-19 23:32:46,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 23:32:48,035 INFO L225 Difference]: With dead ends: 182588 [2022-07-19 23:32:48,035 INFO L226 Difference]: Without dead ends: 182585 [2022-07-19 23:32:48,135 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-07-19 23:32:48,136 INFO L413 NwaCegarLoop]: 3477 mSDtfsCounter, 4427 mSDsluCounter, 5570 mSDsCounter, 0 mSdLazyCounter, 3183 mSolverCounterSat, 1580 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4743 SdHoareTripleChecker+Valid, 9047 SdHoareTripleChecker+Invalid, 4764 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1580 IncrementalHoareTripleChecker+Valid, 3183 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.8s IncrementalHoareTripleChecker+Time [2022-07-19 23:32:48,136 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4743 Valid, 9047 Invalid, 4764 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1580 Valid, 3183 Invalid, 1 Unknown, 0 Unchecked, 8.8s Time] [2022-07-19 23:32:48,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182585 states. [2022-07-19 23:32:54,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182585 to 167916. [2022-07-19 23:32:54,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167916 states, 122892 states have (on average 1.308384597858282) internal successors, (160790), 123506 states have internal predecessors, (160790), 33751 states have call successors, (33751), 7185 states have call predecessors, (33751), 11272 states have return successors, (74860), 37880 states have call predecessors, (74860), 33744 states have call successors, (74860) [2022-07-19 23:32:56,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167916 states to 167916 states and 269401 transitions. [2022-07-19 23:32:56,410 INFO L78 Accepts]: Start accepts. Automaton has 167916 states and 269401 transitions. Word has length 94 [2022-07-19 23:32:56,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 23:32:56,410 INFO L495 AbstractCegarLoop]: Abstraction has 167916 states and 269401 transitions. [2022-07-19 23:32:56,411 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-07-19 23:32:56,411 INFO L276 IsEmpty]: Start isEmpty. Operand 167916 states and 269401 transitions. [2022-07-19 23:32:56,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-07-19 23:32:56,413 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 23:32:56,413 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 23:32:56,413 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-19 23:32:56,413 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 23:32:56,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 23:32:56,414 INFO L85 PathProgramCache]: Analyzing trace with hash 1575598713, now seen corresponding path program 1 times [2022-07-19 23:32:56,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 23:32:56,414 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345137717] [2022-07-19 23:32:56,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:32:56,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 23:32:56,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:32:56,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 23:32:56,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:32:56,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-19 23:32:56,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:32:56,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-19 23:32:56,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:32:56,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-19 23:32:56,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:32:56,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-19 23:32:56,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:32:56,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-19 23:32:56,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:32:56,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-19 23:32:56,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:32:56,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-19 23:32:56,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:32:56,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-19 23:32:56,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:32:56,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-19 23:32:56,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:32:56,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:32:56,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:32:56,972 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-07-19 23:32:56,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 23:32:56,972 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345137717] [2022-07-19 23:32:56,973 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [345137717] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 23:32:56,973 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 23:32:56,973 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-19 23:32:56,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403306973] [2022-07-19 23:32:56,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 23:32:56,973 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 23:32:56,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 23:32:56,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 23:32:56,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-19 23:32:56,974 INFO L87 Difference]: Start difference. First operand 167916 states and 269401 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11)