./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 6c24879c 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-?-6c24879 [2022-07-12 12:28:40,437 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 12:28:40,438 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 12:28:40,466 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 12:28:40,466 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 12:28:40,467 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 12:28:40,468 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 12:28:40,470 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 12:28:40,472 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 12:28:40,474 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 12:28:40,475 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 12:28:40,477 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 12:28:40,477 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 12:28:40,481 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 12:28:40,482 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 12:28:40,483 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 12:28:40,484 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 12:28:40,485 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 12:28:40,486 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 12:28:40,491 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 12:28:40,492 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 12:28:40,495 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 12:28:40,496 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 12:28:40,496 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 12:28:40,497 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 12:28:40,499 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 12:28:40,499 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 12:28:40,500 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 12:28:40,500 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 12:28:40,500 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 12:28:40,501 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 12:28:40,501 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 12:28:40,502 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 12:28:40,502 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 12:28:40,502 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 12:28:40,503 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 12:28:40,503 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 12:28:40,504 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 12:28:40,504 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 12:28:40,504 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 12:28:40,505 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 12:28:40,506 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 12:28:40,507 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-12 12:28:40,520 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 12:28:40,520 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 12:28:40,520 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 12:28:40,521 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 12:28:40,521 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 12:28:40,521 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 12:28:40,522 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 12:28:40,522 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 12:28:40,522 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 12:28:40,522 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 12:28:40,522 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 12:28:40,523 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 12:28:40,523 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 12:28:40,523 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 12:28:40,523 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 12:28:40,523 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 12:28:40,523 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 12:28:40,523 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 12:28:40,524 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 12:28:40,524 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 12:28:40,524 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 12:28:40,524 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 12:28:40,524 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 12:28:40,524 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 12:28:40,525 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 12:28:40,525 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-12 12:28:40,525 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-12 12:28:40,525 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 12:28:40,525 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 12:28:40,525 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 12:28:40,526 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4437765aefc9e8e96e3710e0e55c61aa0f0e29783186331c7ab028aba8558a0d [2022-07-12 12:28:40,736 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 12:28:40,754 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 12:28:40,757 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 12:28:40,758 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 12:28:40,759 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 12:28:40,760 INFO L432 ainManager$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 [2022-07-12 12:28:40,807 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e7c2fdf7c/fba6867591304dd19c5ba6683f33bf70/FLAG530aed332 [2022-07-12 12:28:41,492 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 12:28:41,493 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 [2022-07-12 12:28:41,527 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e7c2fdf7c/fba6867591304dd19c5ba6683f33bf70/FLAG530aed332 [2022-07-12 12:28:41,834 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e7c2fdf7c/fba6867591304dd19c5ba6683f33bf70 [2022-07-12 12:28:41,836 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 12:28:41,837 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 12:28:41,838 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 12:28:41,838 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 12:28:41,840 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 12:28:41,841 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 12:28:41" (1/1) ... [2022-07-12 12:28:41,842 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7cb4ae0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:28:41, skipping insertion in model container [2022-07-12 12:28:41,842 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 12:28:41" (1/1) ... [2022-07-12 12:28:41,847 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 12:28:41,928 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 12:28:42,631 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] [2022-07-12 12:28:43,337 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 12:28:43,374 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 12:28:43,465 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] [2022-07-12 12:28:43,674 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 12:28:43,781 INFO L208 MainTranslator]: Completed translation [2022-07-12 12:28:43,783 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:28:43 WrapperNode [2022-07-12 12:28:43,783 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 12:28:43,784 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 12:28:43,784 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 12:28:43,784 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 12:28:43,789 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:28:43" (1/1) ... [2022-07-12 12:28:43,882 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:28:43" (1/1) ... [2022-07-12 12:28:44,048 INFO L137 Inliner]: procedures = 371, calls = 3017, calls flagged for inlining = 198, calls inlined = 180, statements flattened = 6286 [2022-07-12 12:28:44,049 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 12:28:44,049 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 12:28:44,050 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 12:28:44,050 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 12:28:44,055 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:28:43" (1/1) ... [2022-07-12 12:28:44,056 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:28:43" (1/1) ... [2022-07-12 12:28:44,091 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:28:43" (1/1) ... [2022-07-12 12:28:44,092 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:28:43" (1/1) ... [2022-07-12 12:28:44,170 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:28:43" (1/1) ... [2022-07-12 12:28:44,192 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:28:43" (1/1) ... [2022-07-12 12:28:44,221 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:28:43" (1/1) ... [2022-07-12 12:28:44,292 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 12:28:44,294 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 12:28:44,294 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 12:28:44,294 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 12:28:44,309 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:28:43" (1/1) ... [2022-07-12 12:28:44,315 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 12:28:44,323 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 12:28:44,345 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) [2022-07-12 12:28:44,359 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 [2022-07-12 12:28:44,380 INFO L130 BoogieDeclarations]: Found specification of procedure serial_break [2022-07-12 12:28:44,380 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_break [2022-07-12 12:28:44,381 INFO L130 BoogieDeclarations]: Found specification of procedure serial_proc_open [2022-07-12 12:28:44,381 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_proc_open [2022-07-12 12:28:44,381 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_throttle [2022-07-12 12:28:44,381 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_throttle [2022-07-12 12:28:44,381 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_write_start [2022-07-12 12:28:44,381 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_write_start [2022-07-12 12:28:44,381 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2022-07-12 12:28:44,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2022-07-12 12:28:44,382 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_bulk_urb_14 [2022-07-12 12:28:44,382 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_bulk_urb_14 [2022-07-12 12:28:44,382 INFO L130 BoogieDeclarations]: Found specification of procedure usb_translate_errors [2022-07-12 12:28:44,382 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_translate_errors [2022-07-12 12:28:44,382 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-12 12:28:44,382 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-12 12:28:44,382 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_int [2022-07-12 12:28:44,382 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_int [2022-07-12 12:28:44,382 INFO L130 BoogieDeclarations]: Found specification of procedure serial_port_dtr_rts [2022-07-12 12:28:44,383 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_port_dtr_rts [2022-07-12 12:28:44,383 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_device_remove [2022-07-12 12:28:44,383 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_device_remove [2022-07-12 12:28:44,383 INFO L130 BoogieDeclarations]: Found specification of procedure new_id_show [2022-07-12 12:28:44,383 INFO L138 BoogieDeclarations]: Found implementation of procedure new_id_show [2022-07-12 12:28:44,383 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2022-07-12 12:28:44,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2022-07-12 12:28:44,383 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_write [2022-07-12 12:28:44,383 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_write [2022-07-12 12:28:44,384 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-07-12 12:28:44,384 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-07-12 12:28:44,384 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2022-07-12 12:28:44,384 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2022-07-12 12:28:44,384 INFO L130 BoogieDeclarations]: Found specification of procedure serial_chars_in_buffer [2022-07-12 12:28:44,384 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_chars_in_buffer [2022-07-12 12:28:44,384 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-12 12:28:44,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-12 12:28:44,385 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_maxp [2022-07-12 12:28:44,385 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_maxp [2022-07-12 12:28:44,385 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2022-07-12 12:28:44,385 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2022-07-12 12:28:44,385 INFO L130 BoogieDeclarations]: Found specification of procedure char_buf_ptr [2022-07-12 12:28:44,385 INFO L138 BoogieDeclarations]: Found implementation of procedure char_buf_ptr [2022-07-12 12:28:44,386 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_driver_5 [2022-07-12 12:28:44,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_5 [2022-07-12 12:28:44,386 INFO L130 BoogieDeclarations]: Found specification of procedure serial_port_activate [2022-07-12 12:28:44,386 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_port_activate [2022-07-12 12:28:44,386 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit_unlock [2022-07-12 12:28:44,386 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit_unlock [2022-07-12 12:28:44,386 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-07-12 12:28:44,387 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-07-12 12:28:44,387 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-12 12:28:44,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-12 12:28:44,387 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_4 [2022-07-12 12:28:44,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_4 [2022-07-12 12:28:44,387 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_suspend [2022-07-12 12:28:44,388 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_suspend [2022-07-12 12:28:44,388 INFO L130 BoogieDeclarations]: Found specification of procedure usb_store_new_id [2022-07-12 12:28:44,388 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_store_new_id [2022-07-12 12:28:44,389 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_in [2022-07-12 12:28:44,389 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_in [2022-07-12 12:28:44,389 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_is_int_in [2022-07-12 12:28:44,389 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_is_int_in [2022-07-12 12:28:44,389 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-07-12 12:28:44,389 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-07-12 12:28:44,390 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-12 12:28:44,390 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-12 12:28:44,390 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_port_poison_urbs [2022-07-12 12:28:44,390 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_port_poison_urbs [2022-07-12 12:28:44,390 INFO L130 BoogieDeclarations]: Found specification of procedure serial_hangup [2022-07-12 12:28:44,390 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_hangup [2022-07-12 12:28:44,390 INFO L130 BoogieDeclarations]: Found specification of procedure serial_ioctl [2022-07-12 12:28:44,391 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_ioctl [2022-07-12 12:28:44,391 INFO L130 BoogieDeclarations]: Found specification of procedure serial_write_room [2022-07-12 12:28:44,391 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_write_room [2022-07-12 12:28:44,391 INFO L130 BoogieDeclarations]: Found specification of procedure new_id_store [2022-07-12 12:28:44,391 INFO L138 BoogieDeclarations]: Found implementation of procedure new_id_store [2022-07-12 12:28:44,391 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___2 [2022-07-12 12:28:44,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___2 [2022-07-12 12:28:44,392 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_debug_data [2022-07-12 12:28:44,392 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_debug_data [2022-07-12 12:28:44,392 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2022-07-12 12:28:44,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2022-07-12 12:28:44,392 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-12 12:28:44,392 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-12 12:28:44,392 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-12 12:28:44,392 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-07-12 12:28:44,393 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-07-12 12:28:44,393 INFO L130 BoogieDeclarations]: Found specification of procedure serial_unthrottle [2022-07-12 12:28:44,393 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_unthrottle [2022-07-12 12:28:44,393 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unpoison_urb [2022-07-12 12:28:44,393 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unpoison_urb [2022-07-12 12:28:44,394 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_submit_read_urbs [2022-07-12 12:28:44,394 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_submit_read_urbs [2022-07-12 12:28:44,394 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_device_probe [2022-07-12 12:28:44,394 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_device_probe [2022-07-12 12:28:44,394 INFO L130 BoogieDeclarations]: Found specification of procedure module_put [2022-07-12 12:28:44,395 INFO L138 BoogieDeclarations]: Found implementation of procedure module_put [2022-07-12 12:28:44,395 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-12 12:28:44,395 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2022-07-12 12:28:44,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2022-07-12 12:28:44,395 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2022-07-12 12:28:44,396 INFO L130 BoogieDeclarations]: Found specification of procedure serial_get_icount [2022-07-12 12:28:44,396 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_get_icount [2022-07-12 12:28:44,396 INFO L130 BoogieDeclarations]: Found specification of procedure serial_throttle [2022-07-12 12:28:44,396 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_throttle [2022-07-12 12:28:44,396 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2022-07-12 12:28:44,396 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2022-07-12 12:28:44,396 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-07-12 12:28:44,396 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-07-12 12:28:44,396 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_interface [2022-07-12 12:28:44,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_interface [2022-07-12 12:28:44,397 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_submit_read_urb [2022-07-12 12:28:44,397 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_submit_read_urb [2022-07-12 12:28:44,397 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-12 12:28:44,397 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-12 12:28:44,397 INFO L130 BoogieDeclarations]: Found specification of procedure try_module_get [2022-07-12 12:28:44,397 INFO L138 BoogieDeclarations]: Found implementation of procedure try_module_get [2022-07-12 12:28:44,398 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~X~int~TO~int [2022-07-12 12:28:44,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~X~int~TO~int [2022-07-12 12:28:44,400 INFO L130 BoogieDeclarations]: Found specification of procedure put_tty_driver [2022-07-12 12:28:44,400 INFO L138 BoogieDeclarations]: Found implementation of procedure put_tty_driver [2022-07-12 12:28:44,400 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-07-12 12:28:44,400 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-07-12 12:28:44,402 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_resume [2022-07-12 12:28:44,402 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_resume [2022-07-12 12:28:44,402 INFO L130 BoogieDeclarations]: Found specification of procedure serial_cleanup [2022-07-12 12:28:44,402 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_cleanup [2022-07-12 12:28:44,402 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-07-12 12:28:44,406 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-07-12 12:28:44,406 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-07-12 12:28:44,406 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-07-12 12:28:44,407 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-07-12 12:28:44,407 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-07-12 12:28:44,407 INFO L130 BoogieDeclarations]: Found specification of procedure serial_port_carrier_raised [2022-07-12 12:28:44,407 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_port_carrier_raised [2022-07-12 12:28:44,407 INFO L130 BoogieDeclarations]: Found specification of procedure __kfifo_uint_must_check_helper [2022-07-12 12:28:44,407 INFO L138 BoogieDeclarations]: Found implementation of procedure __kfifo_uint_must_check_helper [2022-07-12 12:28:44,407 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_interface [2022-07-12 12:28:44,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_interface [2022-07-12 12:28:44,407 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-07-12 12:28:44,408 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-07-12 12:28:44,408 INFO L130 BoogieDeclarations]: Found specification of procedure serial_tiocmget [2022-07-12 12:28:44,408 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_tiocmget [2022-07-12 12:28:44,408 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_write_bulk_callback [2022-07-12 12:28:44,408 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_write_bulk_callback [2022-07-12 12:28:44,408 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-07-12 12:28:44,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-07-12 12:28:44,408 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_probe [2022-07-12 12:28:44,408 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_probe [2022-07-12 12:28:44,408 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-07-12 12:28:44,409 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-07-12 12:28:44,409 INFO L130 BoogieDeclarations]: Found specification of procedure jiffies_to_msecs [2022-07-12 12:28:44,409 INFO L138 BoogieDeclarations]: Found implementation of procedure jiffies_to_msecs [2022-07-12 12:28:44,409 INFO L130 BoogieDeclarations]: Found specification of procedure bus_unregister [2022-07-12 12:28:44,409 INFO L138 BoogieDeclarations]: Found implementation of procedure bus_unregister [2022-07-12 12:28:44,409 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_reset_resume [2022-07-12 12:28:44,409 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_reset_resume [2022-07-12 12:28:44,409 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_read_bulk_callback [2022-07-12 12:28:44,409 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_read_bulk_callback [2022-07-12 12:28:44,409 INFO L130 BoogieDeclarations]: Found specification of procedure usb_poison_urb [2022-07-12 12:28:44,410 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_poison_urb [2022-07-12 12:28:44,410 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-12 12:28:44,410 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2022-07-12 12:28:44,410 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2022-07-12 12:28:44,410 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_bulk [2022-07-12 12:28:44,410 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_bulk [2022-07-12 12:28:44,410 INFO L130 BoogieDeclarations]: Found specification of procedure serial_wait_until_sent [2022-07-12 12:28:44,410 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_wait_until_sent [2022-07-12 12:28:44,410 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-07-12 12:28:44,410 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-07-12 12:28:44,411 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_device_match [2022-07-12 12:28:44,411 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_device_match [2022-07-12 12:28:44,411 INFO L130 BoogieDeclarations]: Found specification of procedure serial_open [2022-07-12 12:28:44,411 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_open [2022-07-12 12:28:44,411 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-07-12 12:28:44,411 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-07-12 12:28:44,411 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2022-07-12 12:28:44,411 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2022-07-12 12:28:44,411 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_held [2022-07-12 12:28:44,411 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_held [2022-07-12 12:28:44,412 INFO L130 BoogieDeclarations]: Found specification of procedure serial_port_shutdown [2022-07-12 12:28:44,412 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_port_shutdown [2022-07-12 12:28:44,412 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-12 12:28:44,412 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-12 12:28:44,412 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_41 [2022-07-12 12:28:44,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_41 [2022-07-12 12:28:44,412 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_42 [2022-07-12 12:28:44,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_42 [2022-07-12 12:28:44,412 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~pm_message_t~0~TO~int [2022-07-12 12:28:44,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~pm_message_t~0~TO~int [2022-07-12 12:28:44,413 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-12 12:28:44,413 INFO L130 BoogieDeclarations]: Found specification of procedure serial_set_termios [2022-07-12 12:28:44,413 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_set_termios [2022-07-12 12:28:44,413 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_resume [2022-07-12 12:28:44,413 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_resume [2022-07-12 12:28:44,413 INFO L130 BoogieDeclarations]: Found specification of procedure single_release [2022-07-12 12:28:44,413 INFO L138 BoogieDeclarations]: Found implementation of procedure single_release [2022-07-12 12:28:44,413 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-12 12:28:44,413 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-12 12:28:44,413 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_disconnect [2022-07-12 12:28:44,414 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_disconnect [2022-07-12 12:28:44,414 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_unthrottle [2022-07-12 12:28:44,414 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_unthrottle [2022-07-12 12:28:44,414 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_port_get_by_minor [2022-07-12 12:28:44,414 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_port_get_by_minor [2022-07-12 12:28:44,414 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-12 12:28:44,414 INFO L130 BoogieDeclarations]: Found specification of procedure serial_install [2022-07-12 12:28:44,414 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_install [2022-07-12 12:28:44,414 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 12:28:44,415 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-07-12 12:28:44,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-07-12 12:28:44,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-12 12:28:44,415 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-07-12 12:28:44,415 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_int_urb_18 [2022-07-12 12:28:44,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_int_urb_18 [2022-07-12 12:28:44,415 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put_4 [2022-07-12 12:28:44,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put_4 [2022-07-12 12:28:44,415 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-07-12 12:28:44,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-07-12 12:28:44,416 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-07-12 12:28:44,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-07-12 12:28:44,416 INFO L130 BoogieDeclarations]: Found specification of procedure serial_tiocmset [2022-07-12 12:28:44,416 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_tiocmset [2022-07-12 12:28:44,416 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-07-12 12:28:44,416 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-07-12 12:28:44,416 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2022-07-12 12:28:44,416 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2022-07-12 12:28:44,416 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata_22 [2022-07-12 12:28:44,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata_22 [2022-07-12 12:28:44,417 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_put [2022-07-12 12:28:44,417 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_put [2022-07-12 12:28:44,417 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_unpoison_port_urbs [2022-07-12 12:28:44,417 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_unpoison_port_urbs [2022-07-12 12:28:44,417 INFO L130 BoogieDeclarations]: Found specification of procedure serial_write [2022-07-12 12:28:44,417 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_write [2022-07-12 12:28:44,417 INFO L130 BoogieDeclarations]: Found specification of procedure idr_remove [2022-07-12 12:28:44,417 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_remove [2022-07-12 12:28:44,417 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-07-12 12:28:44,417 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-07-12 12:28:44,418 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_serial [2022-07-12 12:28:44,418 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_serial [2022-07-12 12:28:44,418 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-07-12 12:28:44,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-07-12 12:28:44,418 INFO L130 BoogieDeclarations]: Found specification of procedure get_iface_id [2022-07-12 12:28:44,418 INFO L138 BoogieDeclarations]: Found implementation of procedure get_iface_id [2022-07-12 12:28:44,419 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-07-12 12:28:44,421 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-07-12 12:28:44,421 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2022-07-12 12:28:44,421 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2022-07-12 12:28:44,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-12 12:28:44,422 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 12:28:44,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 12:28:44,422 INFO L130 BoogieDeclarations]: Found specification of procedure tty_unregister_driver [2022-07-12 12:28:44,422 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_unregister_driver [2022-07-12 12:28:44,422 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_out [2022-07-12 12:28:44,423 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_out [2022-07-12 12:28:44,423 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-07-12 12:28:44,423 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-07-12 12:28:45,164 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 12:28:45,167 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 12:28:45,457 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-12 12:28:46,053 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___2FINAL: assume true; [2022-07-12 12:28:51,083 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 12:28:51,101 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 12:28:51,104 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-12 12:28:51,107 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 12:28:51 BoogieIcfgContainer [2022-07-12 12:28:51,108 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 12:28:51,109 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 12:28:51,109 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 12:28:51,111 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 12:28:51,112 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 12:28:41" (1/3) ... [2022-07-12 12:28:51,112 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42ffc3b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 12:28:51, skipping insertion in model container [2022-07-12 12:28:51,112 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:28:43" (2/3) ... [2022-07-12 12:28:51,113 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42ffc3b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 12:28:51, skipping insertion in model container [2022-07-12 12:28:51,113 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 12:28:51" (3/3) ... [2022-07-12 12:28:51,114 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--usb--serial--usbserial.ko-entry_point.cil.out.i [2022-07-12 12:28:51,123 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 12:28:51,124 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-12 12:28:51,205 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 12:28:51,209 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@7e5ea1db, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@54487ff8 [2022-07-12 12:28:51,210 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-12 12:28:51,218 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) [2022-07-12 12:28:51,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-07-12 12:28:51,236 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:28:51,236 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] [2022-07-12 12:28:51,237 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:28:51,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:28:51,241 INFO L85 PathProgramCache]: Analyzing trace with hash -1989796788, now seen corresponding path program 1 times [2022-07-12 12:28:51,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 12:28:51,247 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153001983] [2022-07-12 12:28:51,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:28:51,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 12:28:51,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:28:51,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 12:28:51,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:28:51,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 12:28:51,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:28:51,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 12:28:51,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:28:51,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-12 12:28:51,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:28:51,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-12 12:28:51,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:28:51,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-12 12:28:51,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:28:51,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-12 12:28:51,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:28:51,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-12 12:28:51,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:28:51,790 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-07-12 12:28:51,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 12:28:51,791 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153001983] [2022-07-12 12:28:51,791 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1153001983] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:28:51,791 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:28:51,791 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 12:28:51,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112379672] [2022-07-12 12:28:51,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:28:51,796 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 12:28:51,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 12:28:51,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 12:28:51,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 12:28:51,819 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) [2022-07-12 12:28:55,035 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 [] [2022-07-12 12:28:59,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:28:59,450 INFO L93 Difference]: Finished difference Result 6691 states and 9849 transitions. [2022-07-12 12:28:59,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 12:28:59,452 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 [2022-07-12 12:28:59,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:28:59,506 INFO L225 Difference]: With dead ends: 6691 [2022-07-12 12:28:59,506 INFO L226 Difference]: Without dead ends: 4554 [2022-07-12 12:28:59,525 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 [2022-07-12 12:28:59,529 INFO L413 NwaCegarLoop]: 3155 mSDtfsCounter, 4027 mSDsluCounter, 3663 mSDsCounter, 0 mSdLazyCounter, 2015 mSolverCounterSat, 1412 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4349 SdHoareTripleChecker+Valid, 6818 SdHoareTripleChecker+Invalid, 3428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1412 IncrementalHoareTripleChecker+Valid, 2015 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2022-07-12 12:28:59,530 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4349 Valid, 6818 Invalid, 3428 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1412 Valid, 2015 Invalid, 1 Unknown, 0 Unchecked, 7.2s Time] [2022-07-12 12:28:59,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4554 states. [2022-07-12 12:28:59,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4554 to 4048. [2022-07-12 12:28:59,747 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) [2022-07-12 12:28:59,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4048 states to 4048 states and 5650 transitions. [2022-07-12 12:28:59,777 INFO L78 Accepts]: Start accepts. Automaton has 4048 states and 5650 transitions. Word has length 69 [2022-07-12 12:28:59,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:28:59,778 INFO L495 AbstractCegarLoop]: Abstraction has 4048 states and 5650 transitions. [2022-07-12 12:28:59,778 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) [2022-07-12 12:28:59,779 INFO L276 IsEmpty]: Start isEmpty. Operand 4048 states and 5650 transitions. [2022-07-12 12:28:59,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-07-12 12:28:59,786 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:28:59,786 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] [2022-07-12 12:28:59,787 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-12 12:28:59,787 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:28:59,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:28:59,788 INFO L85 PathProgramCache]: Analyzing trace with hash -2119451424, now seen corresponding path program 1 times [2022-07-12 12:28:59,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 12:28:59,788 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330498131] [2022-07-12 12:28:59,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:28:59,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 12:28:59,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:28:59,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 12:28:59,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:29:00,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 12:29:00,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:29:00,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 12:29:00,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:29:00,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-12 12:29:00,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:29:00,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-12 12:29:00,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:29:00,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-12 12:29:00,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:29:00,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-12 12:29:00,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:29:00,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-12 12:29:00,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:29:00,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-07-12 12:29:00,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:29:00,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-12 12:29:00,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:29:00,078 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-07-12 12:29:00,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 12:29:00,078 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330498131] [2022-07-12 12:29:00,079 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1330498131] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:29:00,081 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:29:00,081 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 12:29:00,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740451040] [2022-07-12 12:29:00,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:29:00,083 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 12:29:00,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 12:29:00,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 12:29:00,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 12:29:00,084 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) [2022-07-12 12:29:03,192 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 [] [2022-07-12 12:29:07,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:29:07,555 INFO L93 Difference]: Finished difference Result 12746 states and 17994 transitions. [2022-07-12 12:29:07,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 12:29:07,556 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 [2022-07-12 12:29:07,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:29:07,605 INFO L225 Difference]: With dead ends: 12746 [2022-07-12 12:29:07,605 INFO L226 Difference]: Without dead ends: 8719 [2022-07-12 12:29:07,623 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 [2022-07-12 12:29:07,624 INFO L413 NwaCegarLoop]: 3097 mSDtfsCounter, 3824 mSDsluCounter, 3536 mSDsCounter, 0 mSdLazyCounter, 2107 mSolverCounterSat, 1358 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4158 SdHoareTripleChecker+Valid, 6633 SdHoareTripleChecker+Invalid, 3466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1358 IncrementalHoareTripleChecker+Valid, 2107 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2022-07-12 12:29:07,625 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4158 Valid, 6633 Invalid, 3466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1358 Valid, 2107 Invalid, 1 Unknown, 0 Unchecked, 7.1s Time] [2022-07-12 12:29:07,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8719 states. [2022-07-12 12:29:07,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8719 to 7670. [2022-07-12 12:29:07,887 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) [2022-07-12 12:29:07,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7670 states to 7670 states and 10659 transitions. [2022-07-12 12:29:07,913 INFO L78 Accepts]: Start accepts. Automaton has 7670 states and 10659 transitions. Word has length 89 [2022-07-12 12:29:07,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:29:07,915 INFO L495 AbstractCegarLoop]: Abstraction has 7670 states and 10659 transitions. [2022-07-12 12:29:07,915 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) [2022-07-12 12:29:07,915 INFO L276 IsEmpty]: Start isEmpty. Operand 7670 states and 10659 transitions. [2022-07-12 12:29:07,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-07-12 12:29:07,919 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:29:07,919 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] [2022-07-12 12:29:07,919 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-12 12:29:07,919 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:29:07,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:29:07,920 INFO L85 PathProgramCache]: Analyzing trace with hash -1481995065, now seen corresponding path program 1 times [2022-07-12 12:29:07,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 12:29:07,920 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586000375] [2022-07-12 12:29:07,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:29:07,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 12:29:08,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:29:08,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 12:29:08,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:29:08,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 12:29:08,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:29:08,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 12:29:08,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:29:08,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-12 12:29:08,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:29:08,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-12 12:29:08,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:29:08,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-12 12:29:08,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:29:08,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-12 12:29:08,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:29:08,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-12 12:29:08,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:29:08,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-07-12 12:29:08,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:29:08,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-12 12:29:08,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:29:08,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:29:08,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:29:08,175 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2022-07-12 12:29:08,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 12:29:08,175 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586000375] [2022-07-12 12:29:08,177 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1586000375] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:29:08,179 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:29:08,179 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 12:29:08,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29791814] [2022-07-12 12:29:08,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:29:08,181 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 12:29:08,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 12:29:08,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 12:29:08,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 12:29:08,182 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) [2022-07-12 12:29:11,451 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 [] [2022-07-12 12:29:18,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:29:18,876 INFO L93 Difference]: Finished difference Result 29996 states and 43373 transitions. [2022-07-12 12:29:18,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-12 12:29:18,877 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 [2022-07-12 12:29:18,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:29:18,983 INFO L225 Difference]: With dead ends: 29996 [2022-07-12 12:29:18,983 INFO L226 Difference]: Without dead ends: 22347 [2022-07-12 12:29:19,026 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 [2022-07-12 12:29:19,027 INFO L413 NwaCegarLoop]: 3155 mSDtfsCounter, 7753 mSDsluCounter, 4531 mSDsCounter, 0 mSdLazyCounter, 4341 mSolverCounterSat, 4159 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8207 SdHoareTripleChecker+Valid, 7686 SdHoareTripleChecker+Invalid, 8501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4159 IncrementalHoareTripleChecker+Valid, 4341 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.1s IncrementalHoareTripleChecker+Time [2022-07-12 12:29:19,027 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8207 Valid, 7686 Invalid, 8501 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4159 Valid, 4341 Invalid, 1 Unknown, 0 Unchecked, 10.1s Time] [2022-07-12 12:29:19,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22347 states. [2022-07-12 12:29:19,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22347 to 15170. [2022-07-12 12:29:19,576 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) [2022-07-12 12:29:19,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15170 states to 15170 states and 21071 transitions. [2022-07-12 12:29:19,627 INFO L78 Accepts]: Start accepts. Automaton has 15170 states and 21071 transitions. Word has length 97 [2022-07-12 12:29:19,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:29:19,628 INFO L495 AbstractCegarLoop]: Abstraction has 15170 states and 21071 transitions. [2022-07-12 12:29:19,628 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) [2022-07-12 12:29:19,629 INFO L276 IsEmpty]: Start isEmpty. Operand 15170 states and 21071 transitions. [2022-07-12 12:29:19,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-07-12 12:29:19,633 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:29:19,633 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] [2022-07-12 12:29:19,633 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-12 12:29:19,633 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:29:19,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:29:19,634 INFO L85 PathProgramCache]: Analyzing trace with hash -1715328829, now seen corresponding path program 1 times [2022-07-12 12:29:19,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 12:29:19,634 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537757138] [2022-07-12 12:29:19,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:29:19,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 12:29:19,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:29:19,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 12:29:19,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:29:19,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 12:29:19,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:29:19,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 12:29:19,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:29:19,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-12 12:29:19,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:29:19,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-12 12:29:19,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:29:19,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-12 12:29:19,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:29:19,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-12 12:29:19,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:29:19,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-12 12:29:19,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:29:19,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-12 12:29:19,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:29:19,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:29:19,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:29:19,849 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-07-12 12:29:19,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 12:29:19,850 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537757138] [2022-07-12 12:29:19,850 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [537757138] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:29:19,850 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:29:19,850 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 12:29:19,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870626541] [2022-07-12 12:29:19,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:29:19,851 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 12:29:19,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 12:29:19,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 12:29:19,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 12:29:19,852 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) [2022-07-12 12:29:22,424 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 [] [2022-07-12 12:29:31,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:29:31,352 INFO L93 Difference]: Finished difference Result 58956 states and 86037 transitions. [2022-07-12 12:29:31,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-12 12:29:31,353 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 [2022-07-12 12:29:31,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:29:31,602 INFO L225 Difference]: With dead ends: 58956 [2022-07-12 12:29:31,603 INFO L226 Difference]: Without dead ends: 43807 [2022-07-12 12:29:31,680 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 [2022-07-12 12:29:31,682 INFO L413 NwaCegarLoop]: 3070 mSDtfsCounter, 7611 mSDsluCounter, 4630 mSDsCounter, 0 mSdLazyCounter, 4392 mSolverCounterSat, 4121 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8049 SdHoareTripleChecker+Valid, 7700 SdHoareTripleChecker+Invalid, 8514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4121 IncrementalHoareTripleChecker+Valid, 4392 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.3s IncrementalHoareTripleChecker+Time [2022-07-12 12:29:31,683 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8049 Valid, 7700 Invalid, 8514 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4121 Valid, 4392 Invalid, 1 Unknown, 0 Unchecked, 10.3s Time] [2022-07-12 12:29:31,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43807 states. [2022-07-12 12:29:32,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43807 to 38538. [2022-07-12 12:29:32,968 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) [2022-07-12 12:29:33,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38538 states to 38538 states and 55391 transitions. [2022-07-12 12:29:33,284 INFO L78 Accepts]: Start accepts. Automaton has 38538 states and 55391 transitions. Word has length 93 [2022-07-12 12:29:33,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:29:33,285 INFO L495 AbstractCegarLoop]: Abstraction has 38538 states and 55391 transitions. [2022-07-12 12:29:33,285 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) [2022-07-12 12:29:33,285 INFO L276 IsEmpty]: Start isEmpty. Operand 38538 states and 55391 transitions. [2022-07-12 12:29:33,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-07-12 12:29:33,291 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:29:33,291 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] [2022-07-12 12:29:33,291 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-12 12:29:33,291 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:29:33,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:29:33,292 INFO L85 PathProgramCache]: Analyzing trace with hash -2146301045, now seen corresponding path program 1 times [2022-07-12 12:29:33,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 12:29:33,292 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971613523] [2022-07-12 12:29:33,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:29:33,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 12:29:33,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:29:33,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 12:29:33,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:29:33,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 12:29:33,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:29:33,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 12:29:33,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:29:33,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-12 12:29:33,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:29:33,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-12 12:29:33,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:29:33,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-12 12:29:33,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:29:33,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-12 12:29:33,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:29:33,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-12 12:29:33,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:29:33,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-12 12:29:33,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:29:33,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-12 12:29:33,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:29:33,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:29:33,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:29:33,774 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-07-12 12:29:33,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 12:29:33,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971613523] [2022-07-12 12:29:33,775 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1971613523] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:29:33,775 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:29:33,775 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 12:29:33,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044067562] [2022-07-12 12:29:33,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:29:33,776 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 12:29:33,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 12:29:33,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 12:29:33,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-12 12:29:33,778 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) [2022-07-12 12:29:42,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:29:42,121 INFO L93 Difference]: Finished difference Result 129915 states and 206472 transitions. [2022-07-12 12:29:42,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 12:29:42,122 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 [2022-07-12 12:29:42,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:29:42,922 INFO L225 Difference]: With dead ends: 129915 [2022-07-12 12:29:42,922 INFO L226 Difference]: Without dead ends: 91398 [2022-07-12 12:29:43,169 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 [2022-07-12 12:29:43,170 INFO L413 NwaCegarLoop]: 3296 mSDtfsCounter, 5910 mSDsluCounter, 4001 mSDsCounter, 0 mSdLazyCounter, 2152 mSolverCounterSat, 2840 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6216 SdHoareTripleChecker+Valid, 7297 SdHoareTripleChecker+Invalid, 4992 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2840 IncrementalHoareTripleChecker+Valid, 2152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-07-12 12:29:43,174 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6216 Valid, 7297 Invalid, 4992 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2840 Valid, 2152 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2022-07-12 12:29:43,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91398 states. [2022-07-12 12:29:46,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91398 to 83018. [2022-07-12 12:29:46,251 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) [2022-07-12 12:29:47,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83018 states to 83018 states and 125724 transitions. [2022-07-12 12:29:47,148 INFO L78 Accepts]: Start accepts. Automaton has 83018 states and 125724 transitions. Word has length 92 [2022-07-12 12:29:47,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:29:47,148 INFO L495 AbstractCegarLoop]: Abstraction has 83018 states and 125724 transitions. [2022-07-12 12:29:47,149 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) [2022-07-12 12:29:47,149 INFO L276 IsEmpty]: Start isEmpty. Operand 83018 states and 125724 transitions. [2022-07-12 12:29:47,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-07-12 12:29:47,151 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:29:47,151 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] [2022-07-12 12:29:47,151 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-12 12:29:47,151 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:29:47,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:29:47,152 INFO L85 PathProgramCache]: Analyzing trace with hash -2112276362, now seen corresponding path program 1 times [2022-07-12 12:29:47,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 12:29:47,152 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030724243] [2022-07-12 12:29:47,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:29:47,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 12:29:47,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:29:47,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 12:29:47,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:29:47,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 12:29:47,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:29:47,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 12:29:47,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:29:47,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-12 12:29:47,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:29:47,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-12 12:29:47,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:29:47,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-12 12:29:47,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:29:47,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-12 12:29:47,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:29:47,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-12 12:29:47,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:29:47,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-12 12:29:47,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:29:47,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-12 12:29:47,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:29:47,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:29:47,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:29:47,393 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-07-12 12:29:47,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 12:29:47,394 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030724243] [2022-07-12 12:29:47,394 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030724243] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:29:47,394 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:29:47,394 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 12:29:47,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767703060] [2022-07-12 12:29:47,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:29:47,395 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 12:29:47,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 12:29:47,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 12:29:47,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-12 12:29:47,396 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) [2022-07-12 12:29:59,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:29:59,981 INFO L93 Difference]: Finished difference Result 265587 states and 452903 transitions. [2022-07-12 12:29:59,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 12:29:59,982 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 [2022-07-12 12:29:59,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:30:01,308 INFO L225 Difference]: With dead ends: 265587 [2022-07-12 12:30:01,308 INFO L226 Difference]: Without dead ends: 182590 [2022-07-12 12:30:02,020 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 [2022-07-12 12:30:02,020 INFO L413 NwaCegarLoop]: 3470 mSDtfsCounter, 5664 mSDsluCounter, 4114 mSDsCounter, 0 mSdLazyCounter, 2183 mSolverCounterSat, 2732 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5982 SdHoareTripleChecker+Valid, 7584 SdHoareTripleChecker+Invalid, 4915 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2732 IncrementalHoareTripleChecker+Valid, 2183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-07-12 12:30:02,021 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5982 Valid, 7584 Invalid, 4915 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2732 Valid, 2183 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2022-07-12 12:30:02,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182590 states. [2022-07-12 12:30:08,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182590 to 167915. [2022-07-12 12:30:08,626 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) [2022-07-12 12:30:10,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167915 states to 167915 states and 269400 transitions. [2022-07-12 12:30:10,672 INFO L78 Accepts]: Start accepts. Automaton has 167915 states and 269400 transitions. Word has length 93 [2022-07-12 12:30:10,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:30:10,672 INFO L495 AbstractCegarLoop]: Abstraction has 167915 states and 269400 transitions. [2022-07-12 12:30:10,672 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) [2022-07-12 12:30:10,673 INFO L276 IsEmpty]: Start isEmpty. Operand 167915 states and 269400 transitions. [2022-07-12 12:30:10,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-07-12 12:30:10,675 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:30:10,675 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] [2022-07-12 12:30:10,675 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-12 12:30:10,675 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:30:10,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:30:10,676 INFO L85 PathProgramCache]: Analyzing trace with hash -1057506322, now seen corresponding path program 1 times [2022-07-12 12:30:10,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 12:30:10,676 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285121557] [2022-07-12 12:30:10,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:30:10,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 12:30:10,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:30:10,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 12:30:10,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:30:10,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 12:30:10,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:30:10,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 12:30:10,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:30:10,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-12 12:30:10,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:30:10,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-12 12:30:10,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:30:10,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-12 12:30:10,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:30:10,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-12 12:30:10,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:30:10,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-12 12:30:10,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:30:10,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-12 12:30:10,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:30:10,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-12 12:30:10,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:30:10,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:30:10,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:30:10,926 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-07-12 12:30:10,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 12:30:10,927 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285121557] [2022-07-12 12:30:10,927 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1285121557] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:30:10,927 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:30:10,928 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 12:30:10,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275145997] [2022-07-12 12:30:10,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:30:10,928 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 12:30:10,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 12:30:10,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 12:30:10,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-12 12:30:10,929 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) [2022-07-12 12:30:13,567 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 [] [2022-07-12 12:30:24,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:30:24,682 INFO L93 Difference]: Finished difference Result 182588 states and 299012 transitions. [2022-07-12 12:30:24,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 12:30:24,682 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 [2022-07-12 12:30:24,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:30:25,738 INFO L225 Difference]: With dead ends: 182588 [2022-07-12 12:30:25,741 INFO L226 Difference]: Without dead ends: 182585 [2022-07-12 12:30:25,856 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 [2022-07-12 12:30:25,857 INFO L413 NwaCegarLoop]: 3462 mSDtfsCounter, 4427 mSDsluCounter, 5555 mSDsCounter, 0 mSdLazyCounter, 3177 mSolverCounterSat, 1584 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4743 SdHoareTripleChecker+Valid, 9017 SdHoareTripleChecker+Invalid, 4762 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1584 IncrementalHoareTripleChecker+Valid, 3177 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2022-07-12 12:30:25,858 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4743 Valid, 9017 Invalid, 4762 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1584 Valid, 3177 Invalid, 1 Unknown, 0 Unchecked, 8.4s Time] [2022-07-12 12:30:26,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182585 states. [2022-07-12 12:30:32,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182585 to 167916. [2022-07-12 12:30:32,549 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) [2022-07-12 12:30:34,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167916 states to 167916 states and 269401 transitions. [2022-07-12 12:30:34,396 INFO L78 Accepts]: Start accepts. Automaton has 167916 states and 269401 transitions. Word has length 94 [2022-07-12 12:30:34,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:30:34,399 INFO L495 AbstractCegarLoop]: Abstraction has 167916 states and 269401 transitions. [2022-07-12 12:30:34,399 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) [2022-07-12 12:30:34,399 INFO L276 IsEmpty]: Start isEmpty. Operand 167916 states and 269401 transitions. [2022-07-12 12:30:34,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-07-12 12:30:34,402 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:30:34,402 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] [2022-07-12 12:30:34,402 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-12 12:30:34,402 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:30:34,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:30:34,403 INFO L85 PathProgramCache]: Analyzing trace with hash 1575598713, now seen corresponding path program 1 times [2022-07-12 12:30:34,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 12:30:34,403 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165749242] [2022-07-12 12:30:34,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:30:34,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 12:30:34,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:30:34,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 12:30:34,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:30:34,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 12:30:34,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:30:34,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 12:30:34,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:30:34,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-12 12:30:34,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:30:34,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-12 12:30:34,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:30:34,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-12 12:30:34,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:30:34,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-12 12:30:34,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:30:34,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-12 12:30:34,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:30:34,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-12 12:30:34,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:30:34,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-12 12:30:34,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:30:34,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:30:34,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:30:34,589 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-07-12 12:30:34,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 12:30:34,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1165749242] [2022-07-12 12:30:34,590 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1165749242] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:30:34,590 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:30:34,590 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 12:30:34,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910742717] [2022-07-12 12:30:34,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:30:34,591 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 12:30:34,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 12:30:34,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 12:30:34,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-12 12:30:34,591 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)