./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-via-via-velocity.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0f8a17c6 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-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-via-via-velocity.cil.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 0213066b04433b5115818ca8b9ef0dddadf4a1205d07a35e490e0ff46aebca6c --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-17 08:29:58,276 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-17 08:29:58,278 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-17 08:29:58,336 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-17 08:29:58,336 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-17 08:29:58,339 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-17 08:29:58,340 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-17 08:29:58,342 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-17 08:29:58,343 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-17 08:29:58,348 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-17 08:29:58,349 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-17 08:29:58,350 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-17 08:29:58,350 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-17 08:29:58,352 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-17 08:29:58,353 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-17 08:29:58,358 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-17 08:29:58,359 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-17 08:29:58,360 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-17 08:29:58,361 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-17 08:29:58,373 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-17 08:29:58,376 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-17 08:29:58,377 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-17 08:29:58,378 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-17 08:29:58,379 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-17 08:29:58,384 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-17 08:29:58,384 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-17 08:29:58,384 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-17 08:29:58,386 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-17 08:29:58,386 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-17 08:29:58,386 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-17 08:29:58,387 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-17 08:29:58,387 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-17 08:29:58,388 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-17 08:29:58,389 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-17 08:29:58,390 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-17 08:29:58,390 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-17 08:29:58,390 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-17 08:29:58,391 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-17 08:29:58,392 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-17 08:29:58,392 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-17 08:29:58,392 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-17 08:29:58,393 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-17 08:29:58,419 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-17 08:29:58,419 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-17 08:29:58,420 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-17 08:29:58,420 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-17 08:29:58,421 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-17 08:29:58,421 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-17 08:29:58,421 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-17 08:29:58,421 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-17 08:29:58,421 INFO L138 SettingsManager]: * Use SBE=true [2021-11-17 08:29:58,422 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-17 08:29:58,422 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-17 08:29:58,422 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-17 08:29:58,423 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-17 08:29:58,423 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-17 08:29:58,423 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-17 08:29:58,423 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-17 08:29:58,423 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-17 08:29:58,423 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-17 08:29:58,424 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-17 08:29:58,424 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-17 08:29:58,424 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-17 08:29:58,424 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-17 08:29:58,424 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-17 08:29:58,424 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-17 08:29:58,424 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-17 08:29:58,425 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-17 08:29:58,425 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-17 08:29:58,425 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-17 08:29:58,425 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-17 08:29:58,425 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-17 08:29:58,425 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-17 08:29:58,425 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0213066b04433b5115818ca8b9ef0dddadf4a1205d07a35e490e0ff46aebca6c [2021-11-17 08:29:58,638 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-17 08:29:58,686 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-17 08:29:58,688 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-17 08:29:58,689 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-17 08:29:58,690 INFO L275 PluginConnector]: CDTParser initialized [2021-11-17 08:29:58,690 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-via-via-velocity.cil.i [2021-11-17 08:29:58,755 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e722310a/f1ca08cdf55f42c18fafff3cc9d2a16e/FLAGa8bc4d11a [2021-11-17 08:29:59,531 INFO L306 CDTParser]: Found 1 translation units. [2021-11-17 08:29:59,532 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-via-via-velocity.cil.i [2021-11-17 08:29:59,579 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e722310a/f1ca08cdf55f42c18fafff3cc9d2a16e/FLAGa8bc4d11a [2021-11-17 08:30:00,066 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e722310a/f1ca08cdf55f42c18fafff3cc9d2a16e [2021-11-17 08:30:00,068 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-17 08:30:00,070 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-17 08:30:00,080 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-17 08:30:00,082 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-17 08:30:00,085 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-17 08:30:00,088 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 08:30:00" (1/1) ... [2021-11-17 08:30:00,089 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40baaa7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:30:00, skipping insertion in model container [2021-11-17 08:30:00,089 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 08:30:00" (1/1) ... [2021-11-17 08:30:00,094 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-17 08:30:00,217 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-17 08:30:03,324 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-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-via-via-velocity.cil.i[436411,436424] [2021-11-17 08:30:03,328 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-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-via-via-velocity.cil.i[436558,436571] [2021-11-17 08:30:03,329 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-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-via-via-velocity.cil.i[436697,436710] [2021-11-17 08:30:03,330 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-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-via-via-velocity.cil.i[436855,436868] [2021-11-17 08:30:03,356 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-17 08:30:03,417 INFO L203 MainTranslator]: Completed pre-run [2021-11-17 08:30:03,805 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-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-via-via-velocity.cil.i[436411,436424] [2021-11-17 08:30:03,805 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-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-via-via-velocity.cil.i[436558,436571] [2021-11-17 08:30:03,805 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-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-via-via-velocity.cil.i[436697,436710] [2021-11-17 08:30:03,806 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-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-via-via-velocity.cil.i[436855,436868] [2021-11-17 08:30:03,811 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-17 08:30:03,985 INFO L208 MainTranslator]: Completed translation [2021-11-17 08:30:03,986 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:30:03 WrapperNode [2021-11-17 08:30:03,986 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-17 08:30:03,987 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-17 08:30:03,987 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-17 08:30:03,987 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-17 08:30:03,992 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:30:03" (1/1) ... [2021-11-17 08:30:04,083 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:30:03" (1/1) ... [2021-11-17 08:30:04,263 INFO L137 Inliner]: procedures = 520, calls = 3615, calls flagged for inlining = 326, calls inlined = 303, statements flattened = 8727 [2021-11-17 08:30:04,264 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-17 08:30:04,264 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-17 08:30:04,264 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-17 08:30:04,264 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-17 08:30:04,271 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:30:03" (1/1) ... [2021-11-17 08:30:04,271 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:30:03" (1/1) ... [2021-11-17 08:30:04,299 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:30:03" (1/1) ... [2021-11-17 08:30:04,300 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:30:03" (1/1) ... [2021-11-17 08:30:04,416 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:30:03" (1/1) ... [2021-11-17 08:30:04,433 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:30:03" (1/1) ... [2021-11-17 08:30:04,555 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:30:03" (1/1) ... [2021-11-17 08:30:04,640 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-17 08:30:04,641 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-17 08:30:04,641 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-17 08:30:04,643 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-17 08:30:04,644 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:30:03" (1/1) ... [2021-11-17 08:30:04,649 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-17 08:30:04,656 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 08:30:04,680 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-17 08:30:04,697 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-17 08:30:04,709 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-11-17 08:30:04,709 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-11-17 08:30:04,709 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-17 08:30:04,710 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-17 08:30:04,710 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-17 08:30:04,710 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-17 08:30:04,710 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2021-11-17 08:30:04,710 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2021-11-17 08:30:04,710 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-17 08:30:04,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-17 08:30:04,711 INFO L130 BoogieDeclarations]: Found specification of procedure netif_napi_del [2021-11-17 08:30:04,711 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_napi_del [2021-11-17 08:30:04,711 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-17 08:30:04,711 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-17 08:30:04,711 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-11-17 08:30:04,711 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-11-17 08:30:04,711 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_resume [2021-11-17 08:30:04,711 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_resume [2021-11-17 08:30:04,711 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_print_link_status [2021-11-17 08:30:04,712 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_print_link_status [2021-11-17 08:30:04,712 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_init_registers [2021-11-17 08:30:04,712 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_init_registers [2021-11-17 08:30:04,712 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-17 08:30:04,712 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-17 08:30:04,712 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_mii_write [2021-11-17 08:30:04,712 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_mii_write [2021-11-17 08:30:04,712 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-17 08:30:04,713 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-17 08:30:04,713 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-17 08:30:04,713 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-17 08:30:04,713 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2021-11-17 08:30:04,714 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2021-11-17 08:30:04,714 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-17 08:30:04,714 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-17 08:30:04,714 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_platform_remove [2021-11-17 08:30:04,714 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_platform_remove [2021-11-17 08:30:04,714 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-17 08:30:04,714 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-17 08:30:04,714 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-11-17 08:30:04,715 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-11-17 08:30:04,715 INFO L130 BoogieDeclarations]: Found specification of procedure enable_flow_control_ability [2021-11-17 08:30:04,715 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_flow_control_ability [2021-11-17 08:30:04,715 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-17 08:30:04,715 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-11-17 08:30:04,716 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-11-17 08:30:04,716 INFO L130 BoogieDeclarations]: Found specification of procedure set_pending_timer_val [2021-11-17 08:30:04,716 INFO L138 BoogieDeclarations]: Found implementation of procedure set_pending_timer_val [2021-11-17 08:30:04,716 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-17 08:30:04,716 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-17 08:30:04,717 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-11-17 08:30:04,717 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-11-17 08:30:04,717 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-17 08:30:04,718 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-17 08:30:04,718 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-17 08:30:04,719 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_ethtool_up [2021-11-17 08:30:04,719 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_ethtool_up [2021-11-17 08:30:04,719 INFO L130 BoogieDeclarations]: Found specification of procedure mac_wol_reset [2021-11-17 08:30:04,719 INFO L138 BoogieDeclarations]: Found implementation of procedure mac_wol_reset [2021-11-17 08:30:04,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-17 08:30:04,719 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_ethtool_down [2021-11-17 08:30:04,719 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_ethtool_down [2021-11-17 08:30:04,719 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-17 08:30:04,719 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-17 08:30:04,720 INFO L130 BoogieDeclarations]: Found specification of procedure mac_set_vlan_cam_mask [2021-11-17 08:30:04,720 INFO L138 BoogieDeclarations]: Found implementation of procedure mac_set_vlan_cam_mask [2021-11-17 08:30:04,720 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-17 08:30:04,720 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-17 08:30:04,720 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-17 08:30:04,720 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-17 08:30:04,720 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-17 08:30:04,720 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-17 08:30:04,721 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-17 08:30:04,721 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-17 08:30:04,721 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-17 08:30:04,721 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_is_watching [2021-11-17 08:30:04,722 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_is_watching [2021-11-17 08:30:04,722 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_get_opt_media_mode [2021-11-17 08:30:04,722 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_get_opt_media_mode [2021-11-17 08:30:04,722 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_tx_srv [2021-11-17 08:30:04,722 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_tx_srv [2021-11-17 08:30:04,722 INFO L130 BoogieDeclarations]: Found specification of procedure __netdev_alloc_skb [2021-11-17 08:30:04,723 INFO L138 BoogieDeclarations]: Found implementation of procedure __netdev_alloc_skb [2021-11-17 08:30:04,723 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-17 08:30:04,723 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-17 08:30:04,723 INFO L130 BoogieDeclarations]: Found specification of procedure napi_enable [2021-11-17 08:30:04,723 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_enable [2021-11-17 08:30:04,724 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_rx_refill [2021-11-17 08:30:04,724 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_rx_refill [2021-11-17 08:30:04,724 INFO L130 BoogieDeclarations]: Found specification of procedure mii_set_auto_on [2021-11-17 08:30:04,724 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_set_auto_on [2021-11-17 08:30:04,724 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-17 08:30:04,725 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-17 08:30:04,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-17 08:30:04,725 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-17 08:30:04,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-17 08:30:04,725 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_3 [2021-11-17 08:30:04,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_3 [2021-11-17 08:30:04,725 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_save_context [2021-11-17 08:30:04,725 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_save_context [2021-11-17 08:30:04,725 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2021-11-17 08:30:04,726 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2021-11-17 08:30:04,726 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2021-11-17 08:30:04,726 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2021-11-17 08:30:04,726 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-17 08:30:04,726 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-17 08:30:04,726 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-17 08:30:04,727 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-17 08:30:04,727 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-17 08:30:04,727 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-17 08:30:04,727 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-17 08:30:04,727 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-17 08:30:04,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-17 08:30:04,728 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2021-11-17 08:30:04,730 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2021-11-17 08:30:04,731 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-17 08:30:04,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-17 08:30:04,731 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_update_hw_mibs [2021-11-17 08:30:04,731 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_update_hw_mibs [2021-11-17 08:30:04,731 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_shutdown [2021-11-17 08:30:04,732 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_shutdown [2021-11-17 08:30:04,732 INFO L130 BoogieDeclarations]: Found specification of procedure setup_queue_timers [2021-11-17 08:30:04,732 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_queue_timers [2021-11-17 08:30:04,737 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2021-11-17 08:30:04,737 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2021-11-17 08:30:04,737 INFO L130 BoogieDeclarations]: Found specification of procedure napi_disable [2021-11-17 08:30:04,737 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_disable [2021-11-17 08:30:04,737 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_free_rd_ring [2021-11-17 08:30:04,737 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_free_rd_ring [2021-11-17 08:30:04,737 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-17 08:30:04,738 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-17 08:30:04,738 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-17 08:30:04,738 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-17 08:30:04,738 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_free_dma_rings [2021-11-17 08:30:04,738 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_free_dma_rings [2021-11-17 08:30:04,738 INFO L130 BoogieDeclarations]: Found specification of procedure safe_disable_mii_autopoll [2021-11-17 08:30:04,738 INFO L138 BoogieDeclarations]: Found implementation of procedure safe_disable_mii_autopoll [2021-11-17 08:30:04,738 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2021-11-17 08:30:04,738 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2021-11-17 08:30:04,738 INFO L130 BoogieDeclarations]: Found specification of procedure get_pending_timer_val [2021-11-17 08:30:04,739 INFO L138 BoogieDeclarations]: Found implementation of procedure get_pending_timer_val [2021-11-17 08:30:04,739 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_unregister_notifier [2021-11-17 08:30:04,739 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_unregister_notifier [2021-11-17 08:30:04,739 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-11-17 08:30:04,739 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-11-17 08:30:04,739 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-11-17 08:30:04,739 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-11-17 08:30:04,739 INFO L130 BoogieDeclarations]: Found specification of procedure writeb [2021-11-17 08:30:04,739 INFO L138 BoogieDeclarations]: Found implementation of procedure writeb [2021-11-17 08:30:04,740 INFO L130 BoogieDeclarations]: Found specification of procedure writew [2021-11-17 08:30:04,740 INFO L138 BoogieDeclarations]: Found implementation of procedure writew [2021-11-17 08:30:04,740 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-17 08:30:04,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-17 08:30:04,740 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_set_media_mode [2021-11-17 08:30:04,740 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_set_media_mode [2021-11-17 08:30:04,740 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_init_cam_filter [2021-11-17 08:30:04,740 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_init_cam_filter [2021-11-17 08:30:04,740 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-17 08:30:04,740 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_probe [2021-11-17 08:30:04,741 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_probe [2021-11-17 08:30:04,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-17 08:30:04,741 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-17 08:30:04,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-17 08:30:04,741 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_pci_remove [2021-11-17 08:30:04,741 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_pci_remove [2021-11-17 08:30:04,741 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-11-17 08:30:04,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-11-17 08:30:04,741 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-11-17 08:30:04,742 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-11-17 08:30:04,742 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_init_rings [2021-11-17 08:30:04,742 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_init_rings [2021-11-17 08:30:04,742 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2021-11-17 08:30:04,742 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2021-11-17 08:30:04,742 INFO L130 BoogieDeclarations]: Found specification of procedure enable_mii_autopoll [2021-11-17 08:30:04,742 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_mii_autopoll [2021-11-17 08:30:04,742 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2021-11-17 08:30:04,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2021-11-17 08:30:04,742 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-17 08:30:04,743 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-17 08:30:04,743 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2021-11-17 08:30:04,743 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2021-11-17 08:30:04,743 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-17 08:30:04,744 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-17 08:30:04,744 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2021-11-17 08:30:04,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2021-11-17 08:30:04,744 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2021-11-17 08:30:04,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2021-11-17 08:30:04,744 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2021-11-17 08:30:04,744 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2021-11-17 08:30:04,744 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-11-17 08:30:04,744 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-11-17 08:30:04,744 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2021-11-17 08:30:04,745 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2021-11-17 08:30:04,745 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-17 08:30:04,745 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_set_int_opt [2021-11-17 08:30:04,745 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_set_int_opt [2021-11-17 08:30:04,745 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-11-17 08:30:04,745 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-11-17 08:30:04,745 INFO L130 BoogieDeclarations]: Found specification of procedure mac_set_cam_mask [2021-11-17 08:30:04,745 INFO L138 BoogieDeclarations]: Found implementation of procedure mac_set_cam_mask [2021-11-17 08:30:04,745 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value_probe [2021-11-17 08:30:04,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value_probe [2021-11-17 08:30:04,746 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-17 08:30:04,746 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_suspend [2021-11-17 08:30:04,746 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_suspend [2021-11-17 08:30:04,746 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2021-11-17 08:30:04,746 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2021-11-17 08:30:04,746 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_get_ip [2021-11-17 08:30:04,746 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_get_ip [2021-11-17 08:30:04,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-17 08:30:04,746 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_get_link [2021-11-17 08:30:04,746 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_get_link [2021-11-17 08:30:04,747 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-11-17 08:30:04,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-11-17 08:30:04,747 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2021-11-17 08:30:04,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2021-11-17 08:30:04,747 INFO L130 BoogieDeclarations]: Found specification of procedure setup_adaptive_interrupts [2021-11-17 08:30:04,747 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_adaptive_interrupts [2021-11-17 08:30:04,747 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-11-17 08:30:04,747 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-11-17 08:30:04,747 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-17 08:30:04,747 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-17 08:30:04,748 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-17 08:30:04,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-17 08:30:04,748 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-17 08:30:04,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-17 08:30:04,748 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_set_power_state [2021-11-17 08:30:04,748 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_set_power_state [2021-11-17 08:30:04,748 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_close [2021-11-17 08:30:04,748 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_close [2021-11-17 08:30:04,748 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2021-11-17 08:30:04,749 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2021-11-17 08:30:04,749 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_set_bool_opt [2021-11-17 08:30:04,749 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_set_bool_opt [2021-11-17 08:30:04,749 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-11-17 08:30:04,749 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-11-17 08:30:04,749 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-17 08:30:04,749 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-17 08:30:04,749 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-17 08:30:04,749 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-17 08:30:04,750 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-17 08:30:04,753 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-17 08:30:04,753 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-17 08:30:04,753 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_free_rings [2021-11-17 08:30:04,753 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_free_rings [2021-11-17 08:30:04,753 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_intr [2021-11-17 08:30:04,753 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_intr [2021-11-17 08:30:04,754 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2021-11-17 08:30:04,754 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2021-11-17 08:30:04,754 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-17 08:30:04,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-17 08:30:04,755 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-11-17 08:30:04,755 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-11-17 08:30:04,755 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_remove [2021-11-17 08:30:04,755 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_remove [2021-11-17 08:30:04,755 INFO L130 BoogieDeclarations]: Found specification of procedure check_connection_type [2021-11-17 08:30:04,755 INFO L138 BoogieDeclarations]: Found implementation of procedure check_connection_type [2021-11-17 08:30:04,755 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2021-11-17 08:30:04,756 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2021-11-17 08:30:04,756 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_init_rx_ring_indexes [2021-11-17 08:30:04,756 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_init_rx_ring_indexes [2021-11-17 08:30:04,756 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_mii_read [2021-11-17 08:30:04,756 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_mii_read [2021-11-17 08:30:04,756 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_open [2021-11-17 08:30:04,756 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_open [2021-11-17 08:30:04,756 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_give_many_rx_descs [2021-11-17 08:30:04,756 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_give_many_rx_descs [2021-11-17 08:30:04,756 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-17 08:30:04,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-17 08:30:04,757 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_set_multi [2021-11-17 08:30:04,757 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_set_multi [2021-11-17 08:30:04,757 INFO L130 BoogieDeclarations]: Found specification of procedure readw [2021-11-17 08:30:04,757 INFO L138 BoogieDeclarations]: Found implementation of procedure readw [2021-11-17 08:30:04,757 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_platform_probe [2021-11-17 08:30:04,757 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_platform_probe [2021-11-17 08:30:04,757 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-11-17 08:30:04,757 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-11-17 08:30:04,757 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-17 08:30:04,757 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-17 08:30:04,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-17 08:30:04,758 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_poll_controller [2021-11-17 08:30:04,758 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_poll_controller [2021-11-17 08:30:04,758 INFO L130 BoogieDeclarations]: Found specification of procedure readb [2021-11-17 08:30:04,758 INFO L138 BoogieDeclarations]: Found implementation of procedure readb [2021-11-17 08:30:05,648 INFO L236 CfgBuilder]: Building ICFG [2021-11-17 08:30:05,650 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-17 08:30:06,438 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-17 08:41:36,011 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-17 08:41:36,104 INFO L277 CfgBuilder]: Performing block encoding [2021-11-17 08:41:36,124 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-17 08:41:36,124 INFO L301 CfgBuilder]: Removed 4 assume(true) statements. [2021-11-17 08:41:36,127 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 08:41:36 BoogieIcfgContainer [2021-11-17 08:41:36,127 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-17 08:41:36,128 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-17 08:41:36,128 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-17 08:41:36,130 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-17 08:41:36,131 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 08:30:00" (1/3) ... [2021-11-17 08:41:36,131 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40e71fef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 08:41:36, skipping insertion in model container [2021-11-17 08:41:36,131 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:30:03" (2/3) ... [2021-11-17 08:41:36,132 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40e71fef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 08:41:36, skipping insertion in model container [2021-11-17 08:41:36,132 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 08:41:36" (3/3) ... [2021-11-17 08:41:36,134 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-via-via-velocity.cil.i [2021-11-17 08:41:36,138 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-17 08:41:36,138 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-17 08:41:36,179 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-17 08:41:36,186 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-17 08:41:36,186 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-17 08:41:36,235 INFO L276 IsEmpty]: Start isEmpty. Operand has 3095 states, 2123 states have (on average 1.2948657560056525) internal successors, (2749), 2184 states have internal predecessors, (2749), 840 states have call successors, (840), 133 states have call predecessors, (840), 132 states have return successors, (832), 811 states have call predecessors, (832), 832 states have call successors, (832) [2021-11-17 08:41:36,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2021-11-17 08:41:36,253 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 08:41:36,253 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 08:41:36,254 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 08:41:36,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 08:41:36,257 INFO L85 PathProgramCache]: Analyzing trace with hash -213484464, now seen corresponding path program 1 times [2021-11-17 08:41:36,263 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 08:41:36,263 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178468211] [2021-11-17 08:41:36,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 08:41:36,266 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 08:41:36,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:37,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 08:41:37,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:37,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:41:37,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:37,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 08:41:37,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:37,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:41:37,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:37,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 08:41:37,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:37,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:41:37,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:37,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 08:41:37,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:37,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:41:37,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:37,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 08:41:37,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:37,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:41:37,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:37,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 08:41:37,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:37,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:41:37,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:37,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 08:41:37,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:37,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:41:37,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:37,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 08:41:37,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:37,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:41:37,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:37,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 08:41:37,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:37,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:41:37,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:37,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 08:41:37,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:37,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:41:37,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:37,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 08:41:37,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:37,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:41:37,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:37,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-17 08:41:37,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:37,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:41:37,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:37,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-17 08:41:37,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:37,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:41:37,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:37,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-17 08:41:37,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:37,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:41:37,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:37,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-11-17 08:41:37,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:37,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:41:37,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:37,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-11-17 08:41:37,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:37,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-11-17 08:41:37,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:37,573 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 990 trivial. 0 not checked. [2021-11-17 08:41:37,574 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 08:41:37,574 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178468211] [2021-11-17 08:41:37,574 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1178468211] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 08:41:37,575 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 08:41:37,575 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-17 08:41:37,576 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723261052] [2021-11-17 08:41:37,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 08:41:37,579 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 08:41:37,580 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 08:41:37,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 08:41:37,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-17 08:41:37,608 INFO L87 Difference]: Start difference. First operand has 3095 states, 2123 states have (on average 1.2948657560056525) internal successors, (2749), 2184 states have internal predecessors, (2749), 840 states have call successors, (840), 133 states have call predecessors, (840), 132 states have return successors, (832), 811 states have call predecessors, (832), 832 states have call successors, (832) Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-11-17 08:41:39,742 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 08:41:42,129 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.38s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 08:41:58,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 08:41:58,240 INFO L93 Difference]: Finished difference Result 9318 states and 13536 transitions. [2021-11-17 08:41:58,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 08:41:58,246 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 188 [2021-11-17 08:41:58,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 08:41:58,338 INFO L225 Difference]: With dead ends: 9318 [2021-11-17 08:41:58,339 INFO L226 Difference]: Without dead ends: 6244 [2021-11-17 08:41:58,366 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-17 08:41:58,369 INFO L933 BasicCegarLoop]: 4602 mSDtfsCounter, 5672 mSDsluCounter, 4737 mSDsCounter, 0 mSdLazyCounter, 2972 mSolverCounterSat, 2623 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6439 SdHoareTripleChecker+Valid, 9339 SdHoareTripleChecker+Invalid, 5597 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2623 IncrementalHoareTripleChecker+Valid, 2972 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.8s IncrementalHoareTripleChecker+Time [2021-11-17 08:41:58,370 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6439 Valid, 9339 Invalid, 5597 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2623 Valid, 2972 Invalid, 2 Unknown, 0 Unchecked, 19.8s Time] [2021-11-17 08:41:58,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6244 states. [2021-11-17 08:41:58,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6244 to 5984. [2021-11-17 08:41:58,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5984 states, 4099 states have (on average 1.2854354720663577) internal successors, (5269), 4217 states have internal predecessors, (5269), 1621 states have call successors, (1621), 263 states have call predecessors, (1621), 262 states have return successors, (1619), 1577 states have call predecessors, (1619), 1619 states have call successors, (1619) [2021-11-17 08:41:58,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5984 states to 5984 states and 8509 transitions. [2021-11-17 08:41:58,725 INFO L78 Accepts]: Start accepts. Automaton has 5984 states and 8509 transitions. Word has length 188 [2021-11-17 08:41:58,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 08:41:58,728 INFO L470 AbstractCegarLoop]: Abstraction has 5984 states and 8509 transitions. [2021-11-17 08:41:58,730 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-11-17 08:41:58,730 INFO L276 IsEmpty]: Start isEmpty. Operand 5984 states and 8509 transitions. [2021-11-17 08:41:58,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2021-11-17 08:41:58,871 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 08:41:58,871 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 08:41:58,871 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-17 08:41:58,871 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 08:41:58,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 08:41:58,872 INFO L85 PathProgramCache]: Analyzing trace with hash 1417367501, now seen corresponding path program 1 times [2021-11-17 08:41:58,872 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 08:41:58,872 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929970612] [2021-11-17 08:41:58,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 08:41:58,872 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 08:41:59,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:59,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 08:41:59,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:59,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:41:59,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:59,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 08:41:59,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:59,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:41:59,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:59,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 08:41:59,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:59,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:41:59,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:59,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 08:41:59,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:59,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:41:59,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:59,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 08:41:59,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:59,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:41:59,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:59,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 08:41:59,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:59,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:41:59,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:59,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 08:41:59,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:59,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:41:59,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:59,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 08:41:59,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:59,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:41:59,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:59,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 08:41:59,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:59,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:41:59,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:59,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 08:41:59,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:59,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:41:59,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:59,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 08:41:59,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:59,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:41:59,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:59,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-17 08:41:59,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:59,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:41:59,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:59,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-17 08:41:59,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:59,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:41:59,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:59,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-17 08:41:59,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:59,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:41:59,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:59,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-11-17 08:41:59,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:59,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:41:59,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:59,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-11-17 08:41:59,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:59,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-11-17 08:41:59,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:59,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-11-17 08:41:59,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:59,791 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 990 trivial. 0 not checked. [2021-11-17 08:41:59,791 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 08:41:59,791 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929970612] [2021-11-17 08:41:59,792 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1929970612] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 08:41:59,792 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 08:41:59,792 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-17 08:41:59,792 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448937821] [2021-11-17 08:41:59,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 08:41:59,794 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 08:41:59,794 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 08:41:59,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 08:41:59,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-17 08:41:59,795 INFO L87 Difference]: Start difference. First operand 5984 states and 8509 transitions. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2021-11-17 08:42:01,896 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 08:42:04,280 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.38s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 08:42:21,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 08:42:21,527 INFO L93 Difference]: Finished difference Result 15142 states and 21626 transitions. [2021-11-17 08:42:21,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 08:42:21,528 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 212 [2021-11-17 08:42:21,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 08:42:21,590 INFO L225 Difference]: With dead ends: 15142 [2021-11-17 08:42:21,590 INFO L226 Difference]: Without dead ends: 9193 [2021-11-17 08:42:21,620 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-17 08:42:21,621 INFO L933 BasicCegarLoop]: 4573 mSDtfsCounter, 5500 mSDsluCounter, 4700 mSDsCounter, 0 mSdLazyCounter, 3025 mSolverCounterSat, 2601 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6251 SdHoareTripleChecker+Valid, 9273 SdHoareTripleChecker+Invalid, 5628 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2601 IncrementalHoareTripleChecker+Valid, 3025 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.0s IncrementalHoareTripleChecker+Time [2021-11-17 08:42:21,621 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6251 Valid, 9273 Invalid, 5628 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2601 Valid, 3025 Invalid, 2 Unknown, 0 Unchecked, 21.0s Time] [2021-11-17 08:42:21,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9193 states. [2021-11-17 08:42:21,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9193 to 8797. [2021-11-17 08:42:21,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8797 states, 6031 states have (on average 1.2817111590117725) internal successors, (7730), 6208 states have internal predecessors, (7730), 2373 states have call successors, (2373), 392 states have call predecessors, (2373), 391 states have return successors, (2371), 2305 states have call predecessors, (2371), 2371 states have call successors, (2371) [2021-11-17 08:42:21,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8797 states to 8797 states and 12474 transitions. [2021-11-17 08:42:21,954 INFO L78 Accepts]: Start accepts. Automaton has 8797 states and 12474 transitions. Word has length 212 [2021-11-17 08:42:21,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 08:42:21,954 INFO L470 AbstractCegarLoop]: Abstraction has 8797 states and 12474 transitions. [2021-11-17 08:42:21,955 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2021-11-17 08:42:21,955 INFO L276 IsEmpty]: Start isEmpty. Operand 8797 states and 12474 transitions. [2021-11-17 08:42:21,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2021-11-17 08:42:21,960 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 08:42:21,960 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 08:42:21,960 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-17 08:42:21,960 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 08:42:21,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 08:42:21,961 INFO L85 PathProgramCache]: Analyzing trace with hash -349823132, now seen corresponding path program 1 times [2021-11-17 08:42:21,961 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 08:42:21,961 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998857601] [2021-11-17 08:42:21,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 08:42:21,961 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 08:42:22,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:22,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 08:42:22,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:22,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:42:22,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:22,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 08:42:22,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:22,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:42:22,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:22,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 08:42:22,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:22,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:42:22,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:22,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 08:42:22,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:22,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:42:22,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:22,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 08:42:22,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:22,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:42:22,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:22,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 08:42:22,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:22,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:42:22,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:22,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 08:42:22,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:22,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:42:22,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:22,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 08:42:22,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:22,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:42:22,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:22,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 08:42:22,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:22,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:42:22,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:22,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 08:42:22,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:22,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:42:22,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:22,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 08:42:22,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:22,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:42:22,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:22,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-17 08:42:22,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:22,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:42:22,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:22,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-17 08:42:22,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:22,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:42:22,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:22,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-17 08:42:22,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:22,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:42:22,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:22,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-11-17 08:42:22,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:22,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:42:22,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:22,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-11-17 08:42:22,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:22,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-11-17 08:42:22,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:22,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-11-17 08:42:22,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:22,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2021-11-17 08:42:22,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:22,820 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 990 trivial. 0 not checked. [2021-11-17 08:42:22,820 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 08:42:22,820 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998857601] [2021-11-17 08:42:22,821 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [998857601] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 08:42:22,821 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 08:42:22,821 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-17 08:42:22,821 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282733968] [2021-11-17 08:42:22,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 08:42:22,821 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-17 08:42:22,821 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 08:42:22,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-17 08:42:22,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-17 08:42:22,822 INFO L87 Difference]: Start difference. First operand 8797 states and 12474 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 3 states have internal predecessors, (58), 3 states have call successors, (21), 4 states have call predecessors, (21), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2021-11-17 08:42:25,013 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 08:42:27,454 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.44s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 08:42:53,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 08:42:53,562 INFO L93 Difference]: Finished difference Result 24930 states and 35745 transitions. [2021-11-17 08:42:53,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 08:42:53,569 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 3 states have internal predecessors, (58), 3 states have call successors, (21), 4 states have call predecessors, (21), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 213 [2021-11-17 08:42:53,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 08:42:53,671 INFO L225 Difference]: With dead ends: 24930 [2021-11-17 08:42:53,671 INFO L226 Difference]: Without dead ends: 16168 [2021-11-17 08:42:53,717 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-17 08:42:53,722 INFO L933 BasicCegarLoop]: 4436 mSDtfsCounter, 7956 mSDsluCounter, 4545 mSDsCounter, 0 mSdLazyCounter, 4030 mSolverCounterSat, 5246 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8756 SdHoareTripleChecker+Valid, 8981 SdHoareTripleChecker+Invalid, 9278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5246 IncrementalHoareTripleChecker+Valid, 4030 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.6s IncrementalHoareTripleChecker+Time [2021-11-17 08:42:53,723 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8756 Valid, 8981 Invalid, 9278 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5246 Valid, 4030 Invalid, 2 Unknown, 0 Unchecked, 29.6s Time] [2021-11-17 08:42:53,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16168 states. [2021-11-17 08:42:54,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16168 to 14528. [2021-11-17 08:42:54,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14528 states, 9970 states have (on average 1.279739217652959) internal successors, (12759), 10269 states have internal predecessors, (12759), 3908 states have call successors, (3908), 649 states have call predecessors, (3908), 648 states have return successors, (3906), 3791 states have call predecessors, (3906), 3906 states have call successors, (3906) [2021-11-17 08:42:54,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14528 states to 14528 states and 20573 transitions. [2021-11-17 08:42:54,330 INFO L78 Accepts]: Start accepts. Automaton has 14528 states and 20573 transitions. Word has length 213 [2021-11-17 08:42:54,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 08:42:54,331 INFO L470 AbstractCegarLoop]: Abstraction has 14528 states and 20573 transitions. [2021-11-17 08:42:54,332 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 3 states have internal predecessors, (58), 3 states have call successors, (21), 4 states have call predecessors, (21), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2021-11-17 08:42:54,332 INFO L276 IsEmpty]: Start isEmpty. Operand 14528 states and 20573 transitions. [2021-11-17 08:42:54,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2021-11-17 08:42:54,340 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 08:42:54,341 INFO L514 BasicCegarLoop]: trace histogram [21, 21, 15, 15, 15, 15, 15, 15, 6, 6, 6, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 08:42:54,341 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-17 08:42:54,341 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 08:42:54,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 08:42:54,342 INFO L85 PathProgramCache]: Analyzing trace with hash 288005552, now seen corresponding path program 1 times [2021-11-17 08:42:54,342 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 08:42:54,342 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063492223] [2021-11-17 08:42:54,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 08:42:54,342 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 08:42:54,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:55,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 08:42:55,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:55,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:42:55,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:55,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 08:42:55,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:55,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:42:55,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:55,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 08:42:55,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:55,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:42:55,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:55,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 08:42:55,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:55,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:42:55,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:55,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 08:42:55,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:55,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:42:55,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:55,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 08:42:55,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:55,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:42:55,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:55,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 08:42:55,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:55,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:42:55,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:55,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 08:42:55,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:55,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:42:55,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:55,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 08:42:55,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:55,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:42:55,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:55,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 08:42:55,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:55,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:42:55,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:55,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 08:42:55,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:55,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:42:55,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:55,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-17 08:42:55,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:55,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:42:55,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:55,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-17 08:42:55,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:55,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:42:55,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:55,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-17 08:42:55,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:55,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:42:55,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:55,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-11-17 08:42:55,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:55,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:42:55,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:55,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-11-17 08:42:55,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:55,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-11-17 08:42:55,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:55,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-11-17 08:42:55,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:55,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-11-17 08:42:55,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:55,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2021-11-17 08:42:55,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:55,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2021-11-17 08:42:55,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:55,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2021-11-17 08:42:55,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:55,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-11-17 08:42:55,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:55,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-11-17 08:42:55,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:55,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:42:55,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:55,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2021-11-17 08:42:55,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:55,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2021-11-17 08:42:55,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:55,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2021-11-17 08:42:55,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:55,396 INFO L134 CoverageAnalysis]: Checked inductivity of 1326 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1326 trivial. 0 not checked. [2021-11-17 08:42:55,396 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 08:42:55,397 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063492223] [2021-11-17 08:42:55,397 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1063492223] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 08:42:55,397 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 08:42:55,397 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-17 08:42:55,397 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618276943] [2021-11-17 08:42:55,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 08:42:55,398 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-17 08:42:55,398 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 08:42:55,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-17 08:42:55,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-17 08:42:55,399 INFO L87 Difference]: Start difference. First operand 14528 states and 20573 transitions. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-11-17 08:42:57,495 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 08:43:09,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 08:43:09,877 INFO L93 Difference]: Finished difference Result 15173 states and 21651 transitions. [2021-11-17 08:43:09,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 08:43:09,879 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 272 [2021-11-17 08:43:09,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 08:43:09,954 INFO L225 Difference]: With dead ends: 15173 [2021-11-17 08:43:09,955 INFO L226 Difference]: Without dead ends: 15074 [2021-11-17 08:43:09,971 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-17 08:43:09,971 INFO L933 BasicCegarLoop]: 4046 mSDtfsCounter, 4515 mSDsluCounter, 4757 mSDsCounter, 0 mSdLazyCounter, 2165 mSolverCounterSat, 1778 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4970 SdHoareTripleChecker+Valid, 8803 SdHoareTripleChecker+Invalid, 3944 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1778 IncrementalHoareTripleChecker+Valid, 2165 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.7s IncrementalHoareTripleChecker+Time [2021-11-17 08:43:09,972 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4970 Valid, 8803 Invalid, 3944 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1778 Valid, 2165 Invalid, 1 Unknown, 0 Unchecked, 13.7s Time] [2021-11-17 08:43:09,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15074 states. [2021-11-17 08:43:10,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15074 to 14429. [2021-11-17 08:43:10,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14429 states, 9904 states have (on average 1.2807956381260097) internal successors, (12685), 10195 states have internal predecessors, (12685), 3880 states have call successors, (3880), 644 states have call predecessors, (3880), 644 states have return successors, (3880), 3771 states have call predecessors, (3880), 3880 states have call successors, (3880) [2021-11-17 08:43:10,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14429 states to 14429 states and 20445 transitions. [2021-11-17 08:43:10,578 INFO L78 Accepts]: Start accepts. Automaton has 14429 states and 20445 transitions. Word has length 272 [2021-11-17 08:43:10,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 08:43:10,579 INFO L470 AbstractCegarLoop]: Abstraction has 14429 states and 20445 transitions. [2021-11-17 08:43:10,579 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-11-17 08:43:10,579 INFO L276 IsEmpty]: Start isEmpty. Operand 14429 states and 20445 transitions. [2021-11-17 08:43:10,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2021-11-17 08:43:10,601 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 08:43:10,603 INFO L514 BasicCegarLoop]: trace histogram [21, 21, 15, 15, 15, 15, 15, 15, 7, 7, 7, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 08:43:10,604 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-17 08:43:10,604 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 08:43:10,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 08:43:10,604 INFO L85 PathProgramCache]: Analyzing trace with hash -1562066305, now seen corresponding path program 1 times [2021-11-17 08:43:10,604 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 08:43:10,605 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396686213] [2021-11-17 08:43:10,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 08:43:10,605 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 08:43:10,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:11,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 08:43:11,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:11,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:43:11,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:11,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 08:43:11,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:11,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:43:11,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:11,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 08:43:11,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:11,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:43:11,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:11,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 08:43:11,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:11,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:43:11,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:11,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 08:43:11,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:11,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:43:11,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:11,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 08:43:11,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:11,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:43:11,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:11,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 08:43:11,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:11,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:43:11,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:11,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 08:43:11,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:11,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:43:11,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:11,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 08:43:11,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:11,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:43:11,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:11,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 08:43:11,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:11,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:43:11,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:11,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 08:43:11,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:11,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:43:11,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:11,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-17 08:43:11,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:11,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:43:11,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:11,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-17 08:43:11,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:11,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:43:11,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:11,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-17 08:43:11,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:11,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:43:11,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:11,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-11-17 08:43:11,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:11,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:43:11,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:11,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-11-17 08:43:11,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:11,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-11-17 08:43:11,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:11,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-11-17 08:43:11,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:11,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-11-17 08:43:11,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:11,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2021-11-17 08:43:11,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:11,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2021-11-17 08:43:11,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:11,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2021-11-17 08:43:11,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:11,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2021-11-17 08:43:11,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:11,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2021-11-17 08:43:11,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:11,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2021-11-17 08:43:11,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:11,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:43:11,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:11,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2021-11-17 08:43:11,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:11,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2021-11-17 08:43:11,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:11,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2021-11-17 08:43:11,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:11,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2021-11-17 08:43:11,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:11,506 INFO L134 CoverageAnalysis]: Checked inductivity of 1347 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1344 trivial. 0 not checked. [2021-11-17 08:43:11,507 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 08:43:11,507 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [396686213] [2021-11-17 08:43:11,507 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [396686213] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 08:43:11,507 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 08:43:11,507 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-17 08:43:11,507 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349607396] [2021-11-17 08:43:11,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 08:43:11,508 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 08:43:11,508 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 08:43:11,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 08:43:11,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-17 08:43:11,509 INFO L87 Difference]: Start difference. First operand 14429 states and 20445 transitions. Second operand has 4 states, 4 states have (on average 24.75) internal successors, (99), 3 states have internal predecessors, (99), 3 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2021-11-17 08:43:13,622 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 08:43:16,016 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.39s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 08:43:34,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 08:43:34,964 INFO L93 Difference]: Finished difference Result 32702 states and 46567 transitions. [2021-11-17 08:43:34,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 08:43:34,966 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.75) internal successors, (99), 3 states have internal predecessors, (99), 3 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) Word has length 304 [2021-11-17 08:43:34,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 08:43:35,090 INFO L225 Difference]: With dead ends: 32702 [2021-11-17 08:43:35,090 INFO L226 Difference]: Without dead ends: 21046 [2021-11-17 08:43:35,156 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-17 08:43:35,157 INFO L933 BasicCegarLoop]: 7674 mSDtfsCounter, 4375 mSDsluCounter, 6010 mSDsCounter, 0 mSdLazyCounter, 3106 mSolverCounterSat, 1818 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5101 SdHoareTripleChecker+Valid, 13684 SdHoareTripleChecker+Invalid, 4926 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1818 IncrementalHoareTripleChecker+Valid, 3106 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.4s IncrementalHoareTripleChecker+Time [2021-11-17 08:43:35,157 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5101 Valid, 13684 Invalid, 4926 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1818 Valid, 3106 Invalid, 2 Unknown, 0 Unchecked, 22.4s Time] [2021-11-17 08:43:35,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21046 states. [2021-11-17 08:43:36,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21046 to 20139. [2021-11-17 08:43:36,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20139 states, 13825 states have (on average 1.2802893309222423) internal successors, (17700), 14233 states have internal predecessors, (17700), 5412 states have call successors, (5412), 901 states have call predecessors, (5412), 901 states have return successors, (5412), 5258 states have call predecessors, (5412), 5412 states have call successors, (5412) [2021-11-17 08:43:36,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20139 states to 20139 states and 28524 transitions. [2021-11-17 08:43:36,151 INFO L78 Accepts]: Start accepts. Automaton has 20139 states and 28524 transitions. Word has length 304 [2021-11-17 08:43:36,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 08:43:36,152 INFO L470 AbstractCegarLoop]: Abstraction has 20139 states and 28524 transitions. [2021-11-17 08:43:36,152 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.75) internal successors, (99), 3 states have internal predecessors, (99), 3 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2021-11-17 08:43:36,153 INFO L276 IsEmpty]: Start isEmpty. Operand 20139 states and 28524 transitions. [2021-11-17 08:43:36,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2021-11-17 08:43:36,173 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 08:43:36,173 INFO L514 BasicCegarLoop]: trace histogram [21, 21, 15, 15, 15, 15, 15, 15, 7, 7, 7, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 08:43:36,173 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-17 08:43:36,174 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 08:43:36,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 08:43:36,174 INFO L85 PathProgramCache]: Analyzing trace with hash -1627458481, now seen corresponding path program 1 times [2021-11-17 08:43:36,175 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 08:43:36,175 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987964137] [2021-11-17 08:43:36,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 08:43:36,175 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 08:43:36,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:36,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 08:43:36,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:36,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:43:36,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:36,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 08:43:36,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:36,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:43:36,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:36,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 08:43:36,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:36,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:43:36,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:36,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 08:43:36,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:36,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:43:36,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:36,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 08:43:36,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:36,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:43:36,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:36,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 08:43:36,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:36,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:43:36,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:36,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 08:43:36,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:36,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:43:36,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:36,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 08:43:36,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:36,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:43:36,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:36,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 08:43:36,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:36,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:43:36,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:36,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 08:43:36,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:36,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:43:36,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:36,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 08:43:36,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:36,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:43:36,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:36,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-17 08:43:36,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:36,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:43:36,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:36,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-17 08:43:36,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:36,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:43:36,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:36,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-17 08:43:36,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:36,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:43:36,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:36,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-11-17 08:43:36,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:36,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:43:36,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:36,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-11-17 08:43:36,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:36,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-11-17 08:43:36,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:36,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-11-17 08:43:36,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:36,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-11-17 08:43:36,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:36,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2021-11-17 08:43:36,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:36,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2021-11-17 08:43:36,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:36,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2021-11-17 08:43:36,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:36,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-11-17 08:43:36,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:36,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2021-11-17 08:43:36,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:36,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2021-11-17 08:43:36,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:36,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:43:36,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:36,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2021-11-17 08:43:36,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:36,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2021-11-17 08:43:36,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:36,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2021-11-17 08:43:36,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:36,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2021-11-17 08:43:36,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:37,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2021-11-17 08:43:37,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:37,085 INFO L134 CoverageAnalysis]: Checked inductivity of 1347 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1344 trivial. 0 not checked. [2021-11-17 08:43:37,085 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 08:43:37,085 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987964137] [2021-11-17 08:43:37,086 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1987964137] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 08:43:37,086 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 08:43:37,086 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-17 08:43:37,086 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604920018] [2021-11-17 08:43:37,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 08:43:37,086 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-17 08:43:37,087 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 08:43:37,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-17 08:43:37,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-17 08:43:37,087 INFO L87 Difference]: Start difference. First operand 20139 states and 28524 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 3 states have internal predecessors, (98), 3 states have call successors, (33), 4 states have call predecessors, (33), 1 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2021-11-17 08:43:39,192 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 08:43:41,571 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.38s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 08:43:51,335 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 08:44:05,042 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 08:44:19,377 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] Killed by 15