./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-nvidia-forcedeth.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-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-nvidia-forcedeth.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 feb979a4b5fcdd2bc35e4615912af4a15806605c7277bcadcde1900230fbf647 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-17 11:38:39,474 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-17 11:38:39,475 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-17 11:38:39,528 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-17 11:38:39,529 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-17 11:38:39,530 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-17 11:38:39,531 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-17 11:38:39,532 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-17 11:38:39,533 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-17 11:38:39,534 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-17 11:38:39,534 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-17 11:38:39,536 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-17 11:38:39,537 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-17 11:38:39,539 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-17 11:38:39,540 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-17 11:38:39,541 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-17 11:38:39,542 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-17 11:38:39,546 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-17 11:38:39,547 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-17 11:38:39,549 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-17 11:38:39,554 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-17 11:38:39,554 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-17 11:38:39,555 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-17 11:38:39,556 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-17 11:38:39,557 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-17 11:38:39,557 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-17 11:38:39,557 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-17 11:38:39,558 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-17 11:38:39,558 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-17 11:38:39,559 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-17 11:38:39,559 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-17 11:38:39,560 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-17 11:38:39,561 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-17 11:38:39,561 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-17 11:38:39,562 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-17 11:38:39,563 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-17 11:38:39,563 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-17 11:38:39,564 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-17 11:38:39,564 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-17 11:38:39,564 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-17 11:38:39,565 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-17 11:38:39,566 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-17 11:38:39,585 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-17 11:38:39,586 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-17 11:38:39,587 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-17 11:38:39,587 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-17 11:38:39,588 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-17 11:38:39,588 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-17 11:38:39,588 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-17 11:38:39,588 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-17 11:38:39,588 INFO L138 SettingsManager]: * Use SBE=true [2021-11-17 11:38:39,589 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-17 11:38:39,590 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-17 11:38:39,590 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-17 11:38:39,590 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-17 11:38:39,590 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-17 11:38:39,590 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-17 11:38:39,590 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-17 11:38:39,590 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-17 11:38:39,591 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-17 11:38:39,591 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-17 11:38:39,591 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-17 11:38:39,591 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-17 11:38:39,591 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-17 11:38:39,591 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-17 11:38:39,591 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-17 11:38:39,592 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-17 11:38:39,592 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-17 11:38:39,592 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-17 11:38:39,593 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-17 11:38:39,593 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-17 11:38:39,593 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-17 11:38:39,593 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-17 11:38:39,593 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> feb979a4b5fcdd2bc35e4615912af4a15806605c7277bcadcde1900230fbf647 [2021-11-17 11:38:39,795 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-17 11:38:39,812 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-17 11:38:39,814 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-17 11:38:39,815 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-17 11:38:39,815 INFO L275 PluginConnector]: CDTParser initialized [2021-11-17 11:38:39,816 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-nvidia-forcedeth.cil.i [2021-11-17 11:38:39,870 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b40c7ad24/ea7a3a8385a5446aa32b76084f8c2d19/FLAG3eb751b90 [2021-11-17 11:38:40,616 INFO L306 CDTParser]: Found 1 translation units. [2021-11-17 11:38:40,616 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-nvidia-forcedeth.cil.i [2021-11-17 11:38:40,661 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b40c7ad24/ea7a3a8385a5446aa32b76084f8c2d19/FLAG3eb751b90 [2021-11-17 11:38:40,902 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b40c7ad24/ea7a3a8385a5446aa32b76084f8c2d19 [2021-11-17 11:38:40,905 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-17 11:38:40,906 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-17 11:38:40,908 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-17 11:38:40,908 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-17 11:38:40,910 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-17 11:38:40,911 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 11:38:40" (1/1) ... [2021-11-17 11:38:40,911 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@90bc27f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:38:40, skipping insertion in model container [2021-11-17 11:38:40,911 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 11:38:40" (1/1) ... [2021-11-17 11:38:40,916 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-17 11:38:41,038 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-17 11:38:44,506 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-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-nvidia-forcedeth.cil.i[546685,546698] [2021-11-17 11:38:44,508 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-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-nvidia-forcedeth.cil.i[546832,546845] [2021-11-17 11:38:44,510 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-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-nvidia-forcedeth.cil.i[546971,546984] [2021-11-17 11:38:44,514 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-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-nvidia-forcedeth.cil.i[547129,547142] [2021-11-17 11:38:44,549 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-17 11:38:44,614 INFO L203 MainTranslator]: Completed pre-run [2021-11-17 11:38:44,984 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-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-nvidia-forcedeth.cil.i[546685,546698] [2021-11-17 11:38:44,985 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-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-nvidia-forcedeth.cil.i[546832,546845] [2021-11-17 11:38:44,985 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-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-nvidia-forcedeth.cil.i[546971,546984] [2021-11-17 11:38:44,986 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-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-nvidia-forcedeth.cil.i[547129,547142] [2021-11-17 11:38:44,991 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-17 11:38:45,156 INFO L208 MainTranslator]: Completed translation [2021-11-17 11:38:45,157 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:38:45 WrapperNode [2021-11-17 11:38:45,157 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-17 11:38:45,158 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-17 11:38:45,158 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-17 11:38:45,158 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-17 11:38:45,162 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:38:45" (1/1) ... [2021-11-17 11:38:45,260 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:38:45" (1/1) ... [2021-11-17 11:38:45,502 INFO L137 Inliner]: procedures = 603, calls = 5908, calls flagged for inlining = 318, calls inlined = 308, statements flattened = 12736 [2021-11-17 11:38:45,503 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-17 11:38:45,504 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-17 11:38:45,504 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-17 11:38:45,504 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-17 11:38:45,510 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:38:45" (1/1) ... [2021-11-17 11:38:45,510 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:38:45" (1/1) ... [2021-11-17 11:38:45,560 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:38:45" (1/1) ... [2021-11-17 11:38:45,561 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:38:45" (1/1) ... [2021-11-17 11:38:45,699 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:38:45" (1/1) ... [2021-11-17 11:38:45,730 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:38:45" (1/1) ... [2021-11-17 11:38:45,863 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:38:45" (1/1) ... [2021-11-17 11:38:45,936 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-17 11:38:45,937 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-17 11:38:45,937 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-17 11:38:45,938 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-17 11:38:45,939 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:38:45" (1/1) ... [2021-11-17 11:38:45,944 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-17 11:38:45,950 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 11:38:45,960 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 11:38:45,973 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 11:38:45,986 INFO L130 BoogieDeclarations]: Found specification of procedure init_realtek_8211b [2021-11-17 11:38:45,986 INFO L138 BoogieDeclarations]: Found implementation of procedure init_realtek_8211b [2021-11-17 11:38:45,986 INFO L130 BoogieDeclarations]: Found specification of procedure nv_nway_reset [2021-11-17 11:38:45,986 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_nway_reset [2021-11-17 11:38:45,986 INFO L130 BoogieDeclarations]: Found specification of procedure device_set_wakeup_enable [2021-11-17 11:38:45,987 INFO L138 BoogieDeclarations]: Found implementation of procedure device_set_wakeup_enable [2021-11-17 11:38:45,987 INFO L130 BoogieDeclarations]: Found specification of procedure nv_drain_rxtx [2021-11-17 11:38:45,987 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_drain_rxtx [2021-11-17 11:38:45,987 INFO L130 BoogieDeclarations]: Found specification of procedure nv_start_tx [2021-11-17 11:38:45,987 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_start_tx [2021-11-17 11:38:45,987 INFO L130 BoogieDeclarations]: Found specification of procedure netif_addr_lock [2021-11-17 11:38:45,987 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_addr_lock [2021-11-17 11:38:45,987 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-11-17 11:38:45,987 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-11-17 11:38:45,988 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-17 11:38:45,988 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-17 11:38:45,988 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_automaton_state_0_6 [2021-11-17 11:38:45,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_automaton_state_0_6 [2021-11-17 11:38:45,988 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2021-11-17 11:38:45,988 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2021-11-17 11:38:45,988 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-17 11:38:45,988 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-17 11:38:45,989 INFO L130 BoogieDeclarations]: Found specification of procedure nv_set_multicast [2021-11-17 11:38:45,989 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_set_multicast [2021-11-17 11:38:45,989 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-17 11:38:45,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-17 11:38:45,989 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-11-17 11:38:45,989 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-11-17 11:38:45,989 INFO L130 BoogieDeclarations]: Found specification of procedure nv_msi_workaround [2021-11-17 11:38:45,989 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_msi_workaround [2021-11-17 11:38:45,989 INFO L130 BoogieDeclarations]: Found specification of procedure nv_get_empty_tx_slots [2021-11-17 11:38:45,990 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_get_empty_tx_slots [2021-11-17 11:38:45,990 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2021-11-17 11:38:45,990 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2021-11-17 11:38:45,990 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-17 11:38:45,990 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-17 11:38:45,990 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2021-11-17 11:38:45,990 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2021-11-17 11:38:45,990 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-11-17 11:38:45,991 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-11-17 11:38:45,991 INFO L130 BoogieDeclarations]: Found specification of procedure nv_close [2021-11-17 11:38:45,991 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_close [2021-11-17 11:38:45,991 INFO L130 BoogieDeclarations]: Found specification of procedure dma_high [2021-11-17 11:38:45,991 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_high [2021-11-17 11:38:45,991 INFO L130 BoogieDeclarations]: Found specification of procedure nv_enable_hw_interrupts [2021-11-17 11:38:45,991 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_enable_hw_interrupts [2021-11-17 11:38:45,991 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2021-11-17 11:38:45,991 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2021-11-17 11:38:45,992 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-17 11:38:45,992 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-17 11:38:45,992 INFO L130 BoogieDeclarations]: Found specification of procedure nv_start_rxtx [2021-11-17 11:38:45,992 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_start_rxtx [2021-11-17 11:38:45,992 INFO L130 BoogieDeclarations]: Found specification of procedure nv_vlan_mode [2021-11-17 11:38:45,992 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_vlan_mode [2021-11-17 11:38:45,992 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-17 11:38:45,992 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-17 11:38:45,993 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-17 11:38:45,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-17 11:38:45,993 INFO L130 BoogieDeclarations]: Found specification of procedure init_realtek_8201 [2021-11-17 11:38:45,993 INFO L138 BoogieDeclarations]: Found implementation of procedure init_realtek_8201 [2021-11-17 11:38:45,993 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-17 11:38:45,993 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-17 11:38:45,993 INFO L130 BoogieDeclarations]: Found specification of procedure reg_delay [2021-11-17 11:38:45,993 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_delay [2021-11-17 11:38:45,993 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2021-11-17 11:38:45,994 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2021-11-17 11:38:45,994 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-17 11:38:45,994 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-17 11:38:45,994 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-17 11:38:45,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-17 11:38:45,994 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-11-17 11:38:45,994 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-11-17 11:38:45,994 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-11-17 11:38:45,994 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-11-17 11:38:45,995 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tailroom [2021-11-17 11:38:45,995 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tailroom [2021-11-17 11:38:45,995 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-17 11:38:45,995 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-11-17 11:38:45,995 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-11-17 11:38:45,995 INFO L130 BoogieDeclarations]: Found specification of procedure pci_push [2021-11-17 11:38:45,995 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_push [2021-11-17 11:38:45,995 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tx_timestamp [2021-11-17 11:38:45,995 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tx_timestamp [2021-11-17 11:38:45,996 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync [2021-11-17 11:38:45,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync [2021-11-17 11:38:45,996 INFO L130 BoogieDeclarations]: Found specification of procedure netif_schedule_queue [2021-11-17 11:38:45,996 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_schedule_queue [2021-11-17 11:38:45,996 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-11-17 11:38:45,996 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-11-17 11:38:45,996 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-17 11:38:45,996 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-17 11:38:45,996 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-11-17 11:38:45,997 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-11-17 11:38:45,997 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2021-11-17 11:38:45,997 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2021-11-17 11:38:45,997 INFO L130 BoogieDeclarations]: Found specification of procedure nv_alloc_rx_optimized [2021-11-17 11:38:45,997 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_alloc_rx_optimized [2021-11-17 11:38:45,997 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-17 11:38:45,997 INFO L130 BoogieDeclarations]: Found specification of procedure __napi_schedule [2021-11-17 11:38:45,997 INFO L138 BoogieDeclarations]: Found implementation of procedure __napi_schedule [2021-11-17 11:38:45,997 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-17 11:38:45,998 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-17 11:38:45,998 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-11-17 11:38:45,998 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-11-17 11:38:45,998 INFO L130 BoogieDeclarations]: Found specification of procedure enable_irq_lockdep [2021-11-17 11:38:45,998 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_irq_lockdep [2021-11-17 11:38:45,998 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-17 11:38:45,998 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-17 11:38:45,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-17 11:38:45,998 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-17 11:38:45,999 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-17 11:38:45,999 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-17 11:38:45,999 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-17 11:38:45,999 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-17 11:38:45,999 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_forcedeth_pci_driver_exit_20_2 [2021-11-17 11:38:45,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_forcedeth_pci_driver_exit_20_2 [2021-11-17 11:38:45,999 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-17 11:38:45,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-17 11:38:46,000 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-17 11:38:46,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-17 11:38:46,000 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-17 11:38:46,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-17 11:38:46,000 INFO L130 BoogieDeclarations]: Found specification of procedure nv_drain_tx [2021-11-17 11:38:46,000 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_drain_tx [2021-11-17 11:38:46,000 INFO L130 BoogieDeclarations]: Found specification of procedure nv_update_stats [2021-11-17 11:38:46,000 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_update_stats [2021-11-17 11:38:46,000 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-11-17 11:38:46,001 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-11-17 11:38:46,001 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-17 11:38:46,001 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-17 11:38:46,001 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_sent_queue [2021-11-17 11:38:46,001 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_sent_queue [2021-11-17 11:38:46,001 INFO L130 BoogieDeclarations]: Found specification of procedure get_hwbase [2021-11-17 11:38:46,001 INFO L138 BoogieDeclarations]: Found implementation of procedure get_hwbase [2021-11-17 11:38:46,001 INFO L130 BoogieDeclarations]: Found specification of procedure setup_hw_rings [2021-11-17 11:38:46,001 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_hw_rings [2021-11-17 11:38:46,002 INFO L130 BoogieDeclarations]: Found specification of procedure nv_nic_irq_tx [2021-11-17 11:38:46,002 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_nic_irq_tx [2021-11-17 11:38:46,002 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-17 11:38:46,002 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-17 11:38:46,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-17 11:38:46,002 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-17 11:38:46,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-17 11:38:46,002 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2021-11-17 11:38:46,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2021-11-17 11:38:46,003 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_4 [2021-11-17 11:38:46,003 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_4 [2021-11-17 11:38:46,003 INFO L130 BoogieDeclarations]: Found specification of procedure nv_free_irq [2021-11-17 11:38:46,003 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_free_irq [2021-11-17 11:38:46,003 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2021-11-17 11:38:46,003 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2021-11-17 11:38:46,003 INFO L130 BoogieDeclarations]: Found specification of procedure nv_shutdown [2021-11-17 11:38:46,003 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_shutdown [2021-11-17 11:38:46,003 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-17 11:38:46,004 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2021-11-17 11:38:46,004 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2021-11-17 11:38:46,004 INFO L130 BoogieDeclarations]: Found specification of procedure nv_suspend [2021-11-17 11:38:46,004 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_suspend [2021-11-17 11:38:46,004 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-17 11:38:46,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-17 11:38:46,004 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-17 11:38:46,004 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-17 11:38:46,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-17 11:38:46,004 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-17 11:38:46,005 INFO L130 BoogieDeclarations]: Found specification of procedure nv_gear_backoff_reseed [2021-11-17 11:38:46,005 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_gear_backoff_reseed [2021-11-17 11:38:46,005 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-17 11:38:46,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-17 11:38:46,005 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headlen [2021-11-17 11:38:46,005 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headlen [2021-11-17 11:38:46,005 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2021-11-17 11:38:46,005 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2021-11-17 11:38:46,005 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_dma_map [2021-11-17 11:38:46,006 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_dma_map [2021-11-17 11:38:46,006 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-17 11:38:46,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-17 11:38:46,006 INFO L130 BoogieDeclarations]: Found specification of procedure nv_alloc_rx [2021-11-17 11:38:46,006 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_alloc_rx [2021-11-17 11:38:46,006 INFO L130 BoogieDeclarations]: Found specification of procedure skb_is_gso [2021-11-17 11:38:46,006 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_is_gso [2021-11-17 11:38:46,006 INFO L130 BoogieDeclarations]: Found specification of procedure nv_nic_irq_other [2021-11-17 11:38:46,006 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_nic_irq_other [2021-11-17 11:38:46,006 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-11-17 11:38:46,007 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-11-17 11:38:46,007 INFO L130 BoogieDeclarations]: Found specification of procedure nv_nic_irq_rx [2021-11-17 11:38:46,007 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_nic_irq_rx [2021-11-17 11:38:46,007 INFO L130 BoogieDeclarations]: Found specification of procedure nv_restore_mac_addr [2021-11-17 11:38:46,007 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_restore_mac_addr [2021-11-17 11:38:46,007 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2021-11-17 11:38:46,007 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2021-11-17 11:38:46,007 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-17 11:38:46,007 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-17 11:38:46,008 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-11-17 11:38:46,008 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-11-17 11:38:46,008 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-17 11:38:46,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-17 11:38:46,008 INFO L130 BoogieDeclarations]: Found specification of procedure nv_napi_disable [2021-11-17 11:38:46,008 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_napi_disable [2021-11-17 11:38:46,008 INFO L130 BoogieDeclarations]: Found specification of procedure u64_stats_fetch_begin_bh [2021-11-17 11:38:46,008 INFO L138 BoogieDeclarations]: Found implementation of procedure u64_stats_fetch_begin_bh [2021-11-17 11:38:46,008 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2021-11-17 11:38:46,009 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2021-11-17 11:38:46,009 INFO L130 BoogieDeclarations]: Found specification of procedure nv_tx_timeout [2021-11-17 11:38:46,009 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_tx_timeout [2021-11-17 11:38:46,009 INFO L130 BoogieDeclarations]: Found specification of procedure nv_rx_process_optimized [2021-11-17 11:38:46,009 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_rx_process_optimized [2021-11-17 11:38:46,009 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-11-17 11:38:46,009 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-11-17 11:38:46,009 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-11-17 11:38:46,009 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-11-17 11:38:46,010 INFO L130 BoogieDeclarations]: Found specification of procedure nv_init_ring [2021-11-17 11:38:46,010 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_init_ring [2021-11-17 11:38:46,010 INFO L130 BoogieDeclarations]: Found specification of procedure napi_schedule_prep [2021-11-17 11:38:46,010 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_schedule_prep [2021-11-17 11:38:46,010 INFO L130 BoogieDeclarations]: Found specification of procedure nv_legacybackoff_reseed [2021-11-17 11:38:46,010 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_legacybackoff_reseed [2021-11-17 11:38:46,010 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-17 11:38:46,010 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-17 11:38:46,010 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2021-11-17 11:38:46,011 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2021-11-17 11:38:46,011 INFO L130 BoogieDeclarations]: Found specification of procedure nv_poll_controller [2021-11-17 11:38:46,011 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_poll_controller [2021-11-17 11:38:46,011 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-11-17 11:38:46,011 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-11-17 11:38:46,011 INFO L130 BoogieDeclarations]: Found specification of procedure nv_tx_done_optimized [2021-11-17 11:38:46,011 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_tx_done_optimized [2021-11-17 11:38:46,011 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-17 11:38:46,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-17 11:38:46,011 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-17 11:38:46,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-17 11:38:46,012 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 11:38:46,012 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 11:38:46,012 INFO L130 BoogieDeclarations]: Found specification of procedure nv_get_sset_count [2021-11-17 11:38:46,012 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_get_sset_count [2021-11-17 11:38:46,012 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2021-11-17 11:38:46,012 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2021-11-17 11:38:46,012 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-11-17 11:38:46,012 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-11-17 11:38:46,013 INFO L130 BoogieDeclarations]: Found specification of procedure nv_txrx_gate [2021-11-17 11:38:46,013 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_txrx_gate [2021-11-17 11:38:46,013 INFO L130 BoogieDeclarations]: Found specification of procedure nv_remove [2021-11-17 11:38:46,013 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_remove [2021-11-17 11:38:46,013 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-11-17 11:38:46,013 INFO L130 BoogieDeclarations]: Found specification of procedure nv_napi_enable [2021-11-17 11:38:46,013 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_napi_enable [2021-11-17 11:38:46,013 INFO L130 BoogieDeclarations]: Found specification of procedure disable_irq [2021-11-17 11:38:46,013 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_irq [2021-11-17 11:38:46,014 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2021-11-17 11:38:46,014 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2021-11-17 11:38:46,014 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-17 11:38:46,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-17 11:38:46,014 INFO L130 BoogieDeclarations]: Found specification of procedure u64_stats_update_begin [2021-11-17 11:38:46,014 INFO L138 BoogieDeclarations]: Found implementation of procedure u64_stats_update_begin [2021-11-17 11:38:46,014 INFO L130 BoogieDeclarations]: Found specification of procedure napi_gro_receive [2021-11-17 11:38:46,014 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_gro_receive [2021-11-17 11:38:46,014 INFO L130 BoogieDeclarations]: Found specification of procedure free_rings [2021-11-17 11:38:46,015 INFO L138 BoogieDeclarations]: Found implementation of procedure free_rings [2021-11-17 11:38:46,015 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-11-17 11:38:46,015 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-11-17 11:38:46,015 INFO L130 BoogieDeclarations]: Found specification of procedure nv_txrx_reset [2021-11-17 11:38:46,015 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_txrx_reset [2021-11-17 11:38:46,015 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-17 11:38:46,015 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-17 11:38:46,015 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2021-11-17 11:38:46,015 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2021-11-17 11:38:46,016 INFO L130 BoogieDeclarations]: Found specification of procedure nv_do_nic_poll [2021-11-17 11:38:46,016 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_do_nic_poll [2021-11-17 11:38:46,016 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msix [2021-11-17 11:38:46,016 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msix [2021-11-17 11:38:46,016 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-17 11:38:46,016 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-17 11:38:46,016 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2021-11-17 11:38:46,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2021-11-17 11:38:46,016 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2021-11-17 11:38:46,017 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2021-11-17 11:38:46,017 INFO L130 BoogieDeclarations]: Found specification of procedure nv_resume [2021-11-17 11:38:46,017 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_resume [2021-11-17 11:38:46,017 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_schedule [2021-11-17 11:38:46,017 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_schedule [2021-11-17 11:38:46,017 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2021-11-17 11:38:46,017 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2021-11-17 11:38:46,017 INFO L130 BoogieDeclarations]: Found specification of procedure round_jiffies [2021-11-17 11:38:46,017 INFO L138 BoogieDeclarations]: Found implementation of procedure round_jiffies [2021-11-17 11:38:46,017 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-11-17 11:38:46,018 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-11-17 11:38:46,018 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2021-11-17 11:38:46,018 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2021-11-17 11:38:46,018 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2021-11-17 11:38:46,018 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2021-11-17 11:38:46,018 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-17 11:38:46,018 INFO L130 BoogieDeclarations]: Found specification of procedure mii_rw [2021-11-17 11:38:46,018 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_rw [2021-11-17 11:38:46,018 INFO L130 BoogieDeclarations]: Found specification of procedure set_msix_vector_map [2021-11-17 11:38:46,019 INFO L138 BoogieDeclarations]: Found implementation of procedure set_msix_vector_map [2021-11-17 11:38:46,019 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-11-17 11:38:46,019 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-11-17 11:38:46,019 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value_probe [2021-11-17 11:38:46,019 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value_probe [2021-11-17 11:38:46,019 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-17 11:38:46,019 INFO L130 BoogieDeclarations]: Found specification of procedure nv_set_loopback [2021-11-17 11:38:46,019 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_set_loopback [2021-11-17 11:38:46,019 INFO L130 BoogieDeclarations]: Found specification of procedure nv_mac_reset [2021-11-17 11:38:46,020 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_mac_reset [2021-11-17 11:38:46,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-17 11:38:46,020 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_completed_queue [2021-11-17 11:38:46,020 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_completed_queue [2021-11-17 11:38:46,020 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-11-17 11:38:46,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-11-17 11:38:46,020 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2021-11-17 11:38:46,020 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2021-11-17 11:38:46,020 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2021-11-17 11:38:46,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2021-11-17 11:38:46,021 INFO L130 BoogieDeclarations]: Found specification of procedure nv_tx_done [2021-11-17 11:38:46,021 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_tx_done [2021-11-17 11:38:46,021 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2021-11-17 11:38:46,021 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2021-11-17 11:38:46,021 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2021-11-17 11:38:46,021 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2021-11-17 11:38:46,021 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-11-17 11:38:46,021 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-11-17 11:38:46,021 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-17 11:38:46,022 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-17 11:38:46,022 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq [2021-11-17 11:38:46,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq [2021-11-17 11:38:46,022 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-17 11:38:46,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-17 11:38:46,022 INFO L130 BoogieDeclarations]: Found specification of procedure get_random_bytes [2021-11-17 11:38:46,022 INFO L138 BoogieDeclarations]: Found implementation of procedure get_random_bytes [2021-11-17 11:38:46,022 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2021-11-17 11:38:46,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2021-11-17 11:38:46,023 INFO L130 BoogieDeclarations]: Found specification of procedure nv_linkchange [2021-11-17 11:38:46,023 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_linkchange [2021-11-17 11:38:46,023 INFO L130 BoogieDeclarations]: Found specification of procedure nv_disable_hw_interrupts [2021-11-17 11:38:46,023 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_disable_hw_interrupts [2021-11-17 11:38:46,023 INFO L130 BoogieDeclarations]: Found specification of procedure set_bufsize [2021-11-17 11:38:46,023 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bufsize [2021-11-17 11:38:46,023 INFO L130 BoogieDeclarations]: Found specification of procedure phy_init [2021-11-17 11:38:46,023 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_init [2021-11-17 11:38:46,023 INFO L130 BoogieDeclarations]: Found specification of procedure dma_low [2021-11-17 11:38:46,024 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_low [2021-11-17 11:38:46,024 INFO L130 BoogieDeclarations]: Found specification of procedure nv_copy_mac_to_hw [2021-11-17 11:38:46,024 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_copy_mac_to_hw [2021-11-17 11:38:46,024 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-11-17 11:38:46,024 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-11-17 11:38:46,024 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-17 11:38:46,025 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-17 11:38:46,025 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2021-11-17 11:38:46,025 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2021-11-17 11:38:46,025 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2021-11-17 11:38:46,025 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2021-11-17 11:38:46,025 INFO L130 BoogieDeclarations]: Found specification of procedure nv_stop_tx [2021-11-17 11:38:46,025 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_stop_tx [2021-11-17 11:38:46,025 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_lock_bh [2021-11-17 11:38:46,025 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_lock_bh [2021-11-17 11:38:46,025 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-17 11:38:46,026 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-17 11:38:46,026 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_unlock_bh [2021-11-17 11:38:46,026 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_unlock_bh [2021-11-17 11:38:46,026 INFO L130 BoogieDeclarations]: Found specification of procedure nv_force_linkspeed [2021-11-17 11:38:46,026 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_force_linkspeed [2021-11-17 11:38:46,026 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-17 11:38:46,026 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-17 11:38:46,026 INFO L130 BoogieDeclarations]: Found specification of procedure nv_update_pause [2021-11-17 11:38:46,026 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_update_pause [2021-11-17 11:38:46,027 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-17 11:38:46,027 INFO L130 BoogieDeclarations]: Found specification of procedure nv_init_tx [2021-11-17 11:38:46,027 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_init_tx [2021-11-17 11:38:46,027 INFO L130 BoogieDeclarations]: Found specification of procedure eth_type_trans [2021-11-17 11:38:46,027 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_type_trans [2021-11-17 11:38:46,027 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2021-11-17 11:38:46,027 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2021-11-17 11:38:46,027 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-17 11:38:46,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-17 11:38:46,028 INFO L130 BoogieDeclarations]: Found specification of procedure nv_enable_irq [2021-11-17 11:38:46,028 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_enable_irq [2021-11-17 11:38:46,028 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~$Pointer$~TO~int [2021-11-17 11:38:46,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~$Pointer$~TO~int [2021-11-17 11:38:46,028 INFO L130 BoogieDeclarations]: Found specification of procedure nv_unmap_txskb [2021-11-17 11:38:46,028 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_unmap_txskb [2021-11-17 11:38:46,028 INFO L130 BoogieDeclarations]: Found specification of procedure enable_irq [2021-11-17 11:38:46,028 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_irq [2021-11-17 11:38:46,028 INFO L130 BoogieDeclarations]: Found specification of procedure nv_stop_rx [2021-11-17 11:38:46,029 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_stop_rx [2021-11-17 11:38:46,029 INFO L130 BoogieDeclarations]: Found specification of procedure u64_stats_fetch_retry_bh [2021-11-17 11:38:46,029 INFO L138 BoogieDeclarations]: Found implementation of procedure u64_stats_fetch_retry_bh [2021-11-17 11:38:46,029 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-11-17 11:38:46,029 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-11-17 11:38:46,029 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2021-11-17 11:38:46,029 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2021-11-17 11:38:46,029 INFO L130 BoogieDeclarations]: Found specification of procedure nv_getlen [2021-11-17 11:38:46,029 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_getlen [2021-11-17 11:38:46,030 INFO L130 BoogieDeclarations]: Found specification of procedure nv_link_irq [2021-11-17 11:38:46,030 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_link_irq [2021-11-17 11:38:46,030 INFO L130 BoogieDeclarations]: Found specification of procedure nv_optimized [2021-11-17 11:38:46,030 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_optimized [2021-11-17 11:38:46,030 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_automaton_state_2_6 [2021-11-17 11:38:46,030 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_automaton_state_2_6 [2021-11-17 11:38:46,030 INFO L130 BoogieDeclarations]: Found specification of procedure nv_stop_rxtx [2021-11-17 11:38:46,030 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_stop_rxtx [2021-11-17 11:38:46,030 INFO L130 BoogieDeclarations]: Found specification of procedure nv_update_linkspeed [2021-11-17 11:38:46,030 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_update_linkspeed [2021-11-17 11:38:46,031 INFO L130 BoogieDeclarations]: Found specification of procedure using_multi_irqs [2021-11-17 11:38:46,031 INFO L138 BoogieDeclarations]: Found implementation of procedure using_multi_irqs [2021-11-17 11:38:46,031 INFO L130 BoogieDeclarations]: Found specification of procedure netif_addr_unlock [2021-11-17 11:38:46,031 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_addr_unlock [2021-11-17 11:38:46,031 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-17 11:38:46,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-17 11:38:46,031 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2021-11-17 11:38:46,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2021-11-17 11:38:46,031 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2021-11-17 11:38:46,032 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2021-11-17 11:38:46,032 INFO L130 BoogieDeclarations]: Found specification of procedure dql_avail [2021-11-17 11:38:46,032 INFO L138 BoogieDeclarations]: Found implementation of procedure dql_avail [2021-11-17 11:38:46,032 INFO L130 BoogieDeclarations]: Found specification of procedure disable_irq_lockdep [2021-11-17 11:38:46,032 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_irq_lockdep [2021-11-17 11:38:46,032 INFO L130 BoogieDeclarations]: Found specification of procedure nv_disable_irq [2021-11-17 11:38:46,032 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_disable_irq [2021-11-17 11:38:46,032 INFO L130 BoogieDeclarations]: Found specification of procedure nv_open [2021-11-17 11:38:46,032 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_open [2021-11-17 11:38:46,032 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_automaton_state_1_6 [2021-11-17 11:38:46,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_automaton_state_1_6 [2021-11-17 11:38:46,033 INFO L130 BoogieDeclarations]: Found specification of procedure nv_start_rx [2021-11-17 11:38:46,033 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_start_rx [2021-11-17 11:38:46,033 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-11-17 11:38:46,033 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-11-17 11:38:46,033 INFO L130 BoogieDeclarations]: Found specification of procedure phy_reset [2021-11-17 11:38:46,033 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_reset [2021-11-17 11:38:46,033 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msi [2021-11-17 11:38:46,033 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msi [2021-11-17 11:38:46,033 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-11-17 11:38:46,034 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-11-17 11:38:46,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-17 11:38:46,034 INFO L130 BoogieDeclarations]: Found specification of procedure get_nvpriv [2021-11-17 11:38:46,034 INFO L138 BoogieDeclarations]: Found implementation of procedure get_nvpriv [2021-11-17 11:38:46,034 INFO L130 BoogieDeclarations]: Found specification of procedure nv_request_irq [2021-11-17 11:38:46,034 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_request_irq [2021-11-17 11:38:46,034 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-17 11:38:46,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-17 11:38:46,034 INFO L130 BoogieDeclarations]: Found specification of procedure nv_get_regs_len [2021-11-17 11:38:46,034 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_get_regs_len [2021-11-17 11:38:47,109 INFO L236 CfgBuilder]: Building ICFG [2021-11-17 11:38:47,111 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-17 11:38:47,661 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-17 11:48:31,962 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-17 11:48:32,052 INFO L277 CfgBuilder]: Performing block encoding [2021-11-17 11:48:32,072 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-17 11:48:32,073 INFO L301 CfgBuilder]: Removed 6 assume(true) statements. [2021-11-17 11:48:32,077 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 11:48:32 BoogieIcfgContainer [2021-11-17 11:48:32,077 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-17 11:48:32,078 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-17 11:48:32,078 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-17 11:48:32,080 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-17 11:48:32,081 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 11:38:40" (1/3) ... [2021-11-17 11:48:32,081 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42b43861 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 11:48:32, skipping insertion in model container [2021-11-17 11:48:32,081 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:38:45" (2/3) ... [2021-11-17 11:48:32,081 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42b43861 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 11:48:32, skipping insertion in model container [2021-11-17 11:48:32,082 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 11:48:32" (3/3) ... [2021-11-17 11:48:32,083 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-nvidia-forcedeth.cil.i [2021-11-17 11:48:32,086 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-17 11:48:32,086 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-17 11:48:32,129 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-17 11:48:32,134 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 11:48:32,134 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-17 11:48:32,209 INFO L276 IsEmpty]: Start isEmpty. Operand has 5182 states, 3331 states have (on average 1.3038126688682077) internal successors, (4343), 3450 states have internal predecessors, (4343), 1639 states have call successors, (1639), 211 states have call predecessors, (1639), 210 states have return successors, (1628), 1598 states have call predecessors, (1628), 1628 states have call successors, (1628) [2021-11-17 11:48:32,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2021-11-17 11:48:32,231 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 11:48:32,232 INFO L514 BasicCegarLoop]: trace histogram [25, 25, 24, 24, 24, 24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:48:32,232 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 11:48:32,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 11:48:32,238 INFO L85 PathProgramCache]: Analyzing trace with hash -1503809161, now seen corresponding path program 1 times [2021-11-17 11:48:32,244 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 11:48:32,245 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941142054] [2021-11-17 11:48:32,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 11:48:32,246 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 11:48:32,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:48:33,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 11:48:33,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:48:33,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:48:33,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:48:33,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 11:48:33,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:48:33,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:48:33,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:48:33,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 11:48:33,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:48:33,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:48:33,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:48:33,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 11:48:33,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:48:33,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:48:33,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:48:33,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 11:48:33,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:48:33,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:48:33,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:48:33,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 11:48:33,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:48:33,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:48:33,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:48:33,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 11:48:33,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:48:33,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:48:33,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:48:33,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 11:48:33,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:48:33,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:48:33,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:48:33,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 11:48:33,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:48:33,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:48:33,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:48:33,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 11:48:33,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:48:33,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:48:33,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:48:33,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 11:48:33,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:48:33,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:48:33,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:48:33,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-17 11:48:33,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:48:33,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:48:33,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:48:33,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-17 11:48:33,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:48:33,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:48:33,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:48:33,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-17 11:48:33,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:48:33,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:48:33,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:48:33,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-11-17 11:48:33,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:48:33,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:48:33,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:48:33,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-11-17 11:48:33,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:48:33,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:48:33,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:48:33,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-11-17 11:48:33,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:48:33,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:48:33,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:48:33,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-11-17 11:48:33,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:48:33,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:48:33,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:48:33,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-11-17 11:48:33,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:48:33,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:48:33,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:48:33,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2021-11-17 11:48:33,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:48:33,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:48:33,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:48:33,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-11-17 11:48:33,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:48:33,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:48:33,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:48:33,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2021-11-17 11:48:33,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:48:33,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:48:33,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:48:33,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2021-11-17 11:48:33,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:48:33,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:48:33,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:48:33,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2021-11-17 11:48:33,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:48:33,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:48:33,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:48:33,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2021-11-17 11:48:33,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:48:33,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2021-11-17 11:48:33,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:48:33,789 INFO L134 CoverageAnalysis]: Checked inductivity of 2556 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2556 trivial. 0 not checked. [2021-11-17 11:48:33,789 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 11:48:33,789 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941142054] [2021-11-17 11:48:33,790 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [941142054] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 11:48:33,790 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 11:48:33,790 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-17 11:48:33,792 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450291569] [2021-11-17 11:48:33,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 11:48:33,796 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 11:48:33,796 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 11:48:33,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 11:48:33,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-17 11:48:33,825 INFO L87 Difference]: Start difference. First operand has 5182 states, 3331 states have (on average 1.3038126688682077) internal successors, (4343), 3450 states have internal predecessors, (4343), 1639 states have call successors, (1639), 211 states have call predecessors, (1639), 210 states have return successors, (1628), 1598 states have call predecessors, (1628), 1628 states have call successors, (1628) Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2021-11-17 11:48:35,996 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 11:48:38,378 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 11:49:11,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 11:49:11,658 INFO L93 Difference]: Finished difference Result 16176 states and 24211 transitions. [2021-11-17 11:49:11,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 11:49:11,661 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) Word has length 291 [2021-11-17 11:49:11,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 11:49:11,752 INFO L225 Difference]: With dead ends: 16176 [2021-11-17 11:49:11,753 INFO L226 Difference]: Without dead ends: 11029 [2021-11-17 11:49:11,795 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 102 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 11:49:11,797 INFO L933 BasicCegarLoop]: 8220 mSDtfsCounter, 9786 mSDsluCounter, 8186 mSDsCounter, 0 mSdLazyCounter, 5774 mSolverCounterSat, 5480 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11428 SdHoareTripleChecker+Valid, 16406 SdHoareTripleChecker+Invalid, 11256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 5480 IncrementalHoareTripleChecker+Valid, 5774 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36.4s IncrementalHoareTripleChecker+Time [2021-11-17 11:49:11,798 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11428 Valid, 16406 Invalid, 11256 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [5480 Valid, 5774 Invalid, 2 Unknown, 0 Unchecked, 36.4s Time] [2021-11-17 11:49:11,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11029 states. [2021-11-17 11:49:12,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11029 to 10153. [2021-11-17 11:49:12,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10153 states, 6522 states have (on average 1.2946948788715118) internal successors, (8444), 6755 states have internal predecessors, (8444), 3212 states have call successors, (3212), 418 states have call predecessors, (3212), 417 states have return successors, (3209), 3149 states have call predecessors, (3209), 3209 states have call successors, (3209) [2021-11-17 11:49:12,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10153 states to 10153 states and 14865 transitions. [2021-11-17 11:49:12,421 INFO L78 Accepts]: Start accepts. Automaton has 10153 states and 14865 transitions. Word has length 291 [2021-11-17 11:49:12,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 11:49:12,424 INFO L470 AbstractCegarLoop]: Abstraction has 10153 states and 14865 transitions. [2021-11-17 11:49:12,425 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2021-11-17 11:49:12,425 INFO L276 IsEmpty]: Start isEmpty. Operand 10153 states and 14865 transitions. [2021-11-17 11:49:12,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2021-11-17 11:49:12,556 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 11:49:12,556 INFO L514 BasicCegarLoop]: trace histogram [25, 25, 24, 24, 24, 24, 24, 24, 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] [2021-11-17 11:49:12,556 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-17 11:49:12,556 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 11:49:12,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 11:49:12,557 INFO L85 PathProgramCache]: Analyzing trace with hash 1384583049, now seen corresponding path program 1 times [2021-11-17 11:49:12,557 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 11:49:12,557 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248558583] [2021-11-17 11:49:12,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 11:49:12,557 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 11:49:12,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:49:13,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 11:49:13,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:49:13,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:49:13,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:49:13,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 11:49:13,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:49:13,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:49:13,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:49:13,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 11:49:13,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:49:13,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:49:13,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:49:13,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 11:49:13,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:49:13,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:49:13,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:49:13,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 11:49:13,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:49:13,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:49:13,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:49:13,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 11:49:13,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:49:13,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:49:13,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:49:13,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 11:49:13,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:49:13,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:49:13,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:49:13,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 11:49:13,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:49:13,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:49:13,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:49:13,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 11:49:13,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:49:13,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:49:13,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:49:13,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 11:49:13,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:49:13,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:49:13,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:49:13,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 11:49:13,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:49:13,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:49:13,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:49:13,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-17 11:49:13,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:49:13,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:49:13,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:49:13,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-17 11:49:13,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:49:13,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:49:13,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:49:13,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-17 11:49:13,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:49:13,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:49:13,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:49:13,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-11-17 11:49:13,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:49:13,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:49:13,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:49:13,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-11-17 11:49:13,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:49:13,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:49:13,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:49:13,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-11-17 11:49:13,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:49:13,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:49:13,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:49:13,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-11-17 11:49:13,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:49:13,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:49:13,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:49:13,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-11-17 11:49:13,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:49:13,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:49:13,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:49:13,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2021-11-17 11:49:13,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:49:13,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:49:13,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:49:13,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-11-17 11:49:13,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:49:13,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:49:13,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:49:13,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2021-11-17 11:49:13,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:49:13,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:49:13,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:49:13,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2021-11-17 11:49:13,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:49:13,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:49:13,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:49:13,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2021-11-17 11:49:13,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:49:13,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:49:13,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:49:13,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2021-11-17 11:49:13,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:49:13,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2021-11-17 11:49:13,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:49:13,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:49:13,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:49:13,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 11:49:13,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:49:13,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 11:49:13,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:49:13,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2021-11-17 11:49:13,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:49:13,763 INFO L134 CoverageAnalysis]: Checked inductivity of 2560 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2560 trivial. 0 not checked. [2021-11-17 11:49:13,763 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 11:49:13,763 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248558583] [2021-11-17 11:49:13,764 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [248558583] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 11:49:13,764 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 11:49:13,764 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-17 11:49:13,764 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536864268] [2021-11-17 11:49:13,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 11:49:13,766 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 11:49:13,766 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 11:49:13,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 11:49:13,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-17 11:49:13,766 INFO L87 Difference]: Start difference. First operand 10153 states and 14865 transitions. Second operand has 4 states, 4 states have (on average 18.75) internal successors, (75), 3 states have internal predecessors, (75), 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 11:49:15,887 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 11:49:18,199 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.31s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 11:49:51,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 11:49:51,340 INFO L93 Difference]: Finished difference Result 26527 states and 39074 transitions. [2021-11-17 11:49:51,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 11:49:51,341 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 3 states have internal predecessors, (75), 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 327 [2021-11-17 11:49:51,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 11:49:51,449 INFO L225 Difference]: With dead ends: 26527 [2021-11-17 11:49:51,449 INFO L226 Difference]: Without dead ends: 16427 [2021-11-17 11:49:51,508 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 110 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 11:49:51,509 INFO L933 BasicCegarLoop]: 8096 mSDtfsCounter, 9673 mSDsluCounter, 8105 mSDsCounter, 0 mSdLazyCounter, 5783 mSolverCounterSat, 5496 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11312 SdHoareTripleChecker+Valid, 16201 SdHoareTripleChecker+Invalid, 11281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5496 IncrementalHoareTripleChecker+Valid, 5783 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36.3s IncrementalHoareTripleChecker+Time [2021-11-17 11:49:51,510 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11312 Valid, 16201 Invalid, 11281 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5496 Valid, 5783 Invalid, 2 Unknown, 0 Unchecked, 36.3s Time] [2021-11-17 11:49:51,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16427 states. [2021-11-17 11:49:52,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16427 to 15105. [2021-11-17 11:49:52,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15105 states, 9702 states have (on average 1.2935477221191507) internal successors, (12550), 10055 states have internal predecessors, (12550), 4774 states have call successors, (4774), 628 states have call predecessors, (4774), 627 states have return successors, (4771), 4676 states have call predecessors, (4771), 4771 states have call successors, (4771) [2021-11-17 11:49:52,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15105 states to 15105 states and 22095 transitions. [2021-11-17 11:49:52,165 INFO L78 Accepts]: Start accepts. Automaton has 15105 states and 22095 transitions. Word has length 327 [2021-11-17 11:49:52,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 11:49:52,167 INFO L470 AbstractCegarLoop]: Abstraction has 15105 states and 22095 transitions. [2021-11-17 11:49:52,167 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 3 states have internal predecessors, (75), 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 11:49:52,167 INFO L276 IsEmpty]: Start isEmpty. Operand 15105 states and 22095 transitions. [2021-11-17 11:49:52,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 336 [2021-11-17 11:49:52,180 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 11:49:52,181 INFO L514 BasicCegarLoop]: trace histogram [27, 27, 25, 25, 25, 25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:49:52,181 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-17 11:49:52,181 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 11:49:52,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 11:49:52,181 INFO L85 PathProgramCache]: Analyzing trace with hash -1324908439, now seen corresponding path program 1 times [2021-11-17 11:49:52,181 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 11:49:52,182 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43717707] [2021-11-17 11:49:52,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 11:49:52,182 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 11:49:52,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:49:52,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 11:49:52,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:49:52,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:49:52,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:49:52,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 11:49:52,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:49:52,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:49:52,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:49:52,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 11:49:52,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:49:52,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:49:52,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:49:52,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 11:49:52,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:49:52,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:49:52,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:49:52,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 11:49:52,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:49:52,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:49:52,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:49:53,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 11:49:53,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:49:53,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:49:53,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:49:53,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 11:49:53,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:49:53,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:49:53,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:49:53,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 11:49:53,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:49:53,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:49:53,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:49:53,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 11:49:53,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:49:53,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:49:53,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:49:53,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 11:49:53,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:49:53,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:49:53,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:49:53,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 11:49:53,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:49:53,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:49:53,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:49:53,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-17 11:49:53,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:49:53,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:49:53,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:49:53,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-17 11:49:53,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:49:53,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:49:53,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:49:53,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-17 11:49:53,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:49:53,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:49:53,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:49:53,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-11-17 11:49:53,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:49:53,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:49:53,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:49:53,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-11-17 11:49:53,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:49:53,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:49:53,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:49:53,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-11-17 11:49:53,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:49:53,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:49:53,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:49:53,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-11-17 11:49:53,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:49:53,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:49:53,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:49:53,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-11-17 11:49:53,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:49:53,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:49:53,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:49:53,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2021-11-17 11:49:53,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:49:53,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:49:53,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:49:53,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-11-17 11:49:53,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:49:53,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:49:53,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:49:53,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2021-11-17 11:49:53,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:49:53,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:49:53,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:49:53,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2021-11-17 11:49:53,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:49:53,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:49:53,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:49:53,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2021-11-17 11:49:53,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:49:53,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:49:53,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:49:53,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2021-11-17 11:49:53,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:49:53,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2021-11-17 11:49:53,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:49:53,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2021-11-17 11:49:53,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:49:53,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2021-11-17 11:49:53,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:49:53,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:49:53,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:49:53,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2021-11-17 11:49:53,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:49:53,279 INFO L134 CoverageAnalysis]: Checked inductivity of 2853 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2853 trivial. 0 not checked. [2021-11-17 11:49:53,279 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 11:49:53,280 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43717707] [2021-11-17 11:49:53,280 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [43717707] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 11:49:53,280 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 11:49:53,280 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-17 11:49:53,281 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777187031] [2021-11-17 11:49:53,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 11:49:53,282 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 11:49:53,282 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 11:49:53,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 11:49:53,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-17 11:49:53,283 INFO L87 Difference]: Start difference. First operand 15105 states and 22095 transitions. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2021-11-17 11:49:55,411 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 11:49:57,731 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.32s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 11:50:30,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 11:50:30,855 INFO L93 Difference]: Finished difference Result 41109 states and 60469 transitions. [2021-11-17 11:50:30,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 11:50:30,856 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) Word has length 335 [2021-11-17 11:50:30,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 11:50:30,986 INFO L225 Difference]: With dead ends: 41109 [2021-11-17 11:50:30,986 INFO L226 Difference]: Without dead ends: 26057 [2021-11-17 11:50:31,039 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 110 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 11:50:31,043 INFO L933 BasicCegarLoop]: 8081 mSDtfsCounter, 9137 mSDsluCounter, 8100 mSDsCounter, 0 mSdLazyCounter, 5710 mSolverCounterSat, 5372 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10680 SdHoareTripleChecker+Valid, 16181 SdHoareTripleChecker+Invalid, 11084 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5372 IncrementalHoareTripleChecker+Valid, 5710 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36.1s IncrementalHoareTripleChecker+Time [2021-11-17 11:50:31,044 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10680 Valid, 16181 Invalid, 11084 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5372 Valid, 5710 Invalid, 2 Unknown, 0 Unchecked, 36.1s Time] [2021-11-17 11:50:31,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26057 states. [2021-11-17 11:50:31,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26057 to 23873. [2021-11-17 11:50:31,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23873 states, 15259 states have (on average 1.2878956681302838) internal successors, (19652), 15825 states have internal predecessors, (19652), 7595 states have call successors, (7595), 1020 states have call predecessors, (7595), 1017 states have return successors, (7592), 7428 states have call predecessors, (7592), 7592 states have call successors, (7592) [2021-11-17 11:50:32,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23873 states to 23873 states and 34839 transitions. [2021-11-17 11:50:32,114 INFO L78 Accepts]: Start accepts. Automaton has 23873 states and 34839 transitions. Word has length 335 [2021-11-17 11:50:32,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 11:50:32,115 INFO L470 AbstractCegarLoop]: Abstraction has 23873 states and 34839 transitions. [2021-11-17 11:50:32,115 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2021-11-17 11:50:32,115 INFO L276 IsEmpty]: Start isEmpty. Operand 23873 states and 34839 transitions. [2021-11-17 11:50:32,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2021-11-17 11:50:32,124 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 11:50:32,124 INFO L514 BasicCegarLoop]: trace histogram [28, 28, 24, 24, 24, 24, 24, 24, 4, 4, 4, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1] [2021-11-17 11:50:32,124 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-17 11:50:32,124 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 11:50:32,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 11:50:32,126 INFO L85 PathProgramCache]: Analyzing trace with hash 207863834, now seen corresponding path program 1 times [2021-11-17 11:50:32,126 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 11:50:32,126 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385222966] [2021-11-17 11:50:32,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 11:50:32,126 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 11:50:32,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:50:32,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 11:50:32,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:50:32,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:50:32,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:50:32,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 11:50:32,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:50:32,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:50:32,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:50:32,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 11:50:32,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:50:32,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:50:32,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:50:32,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 11:50:32,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:50:32,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:50:32,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:50:32,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 11:50:32,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:50:32,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:50:32,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:50:32,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 11:50:32,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:50:32,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:50:32,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:50:32,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 11:50:32,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:50:32,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:50:32,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:50:32,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 11:50:32,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:50:32,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:50:32,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:50:32,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 11:50:32,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:50:32,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:50:32,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:50:32,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 11:50:32,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:50:32,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:50:32,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:50:32,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 11:50:32,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:50:32,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:50:32,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:50:32,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-17 11:50:32,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:50:32,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:50:32,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:50:32,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-17 11:50:32,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:50:32,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:50:32,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:50:32,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-17 11:50:32,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:50:32,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:50:32,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:50:32,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-11-17 11:50:32,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:50:32,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:50:32,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:50:32,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-11-17 11:50:32,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:50:32,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:50:32,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:50:32,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-11-17 11:50:32,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:50:32,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:50:32,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:50:32,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-11-17 11:50:32,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:50:32,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:50:32,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:50:32,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-11-17 11:50:32,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:50:32,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:50:32,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:50:32,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2021-11-17 11:50:32,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:50:32,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:50:32,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:50:32,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-11-17 11:50:32,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:50:32,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:50:32,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:50:32,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2021-11-17 11:50:32,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:50:32,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:50:32,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:50:32,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2021-11-17 11:50:32,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:50:32,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:50:32,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:50:32,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2021-11-17 11:50:32,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:50:32,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:50:32,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:50:32,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2021-11-17 11:50:32,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:50:32,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2021-11-17 11:50:32,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:50:32,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2021-11-17 11:50:32,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:50:33,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2021-11-17 11:50:33,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:50:33,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2021-11-17 11:50:33,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:50:33,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:50:33,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:50:33,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2021-11-17 11:50:33,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:50:33,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 325 [2021-11-17 11:50:33,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:50:33,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 338 [2021-11-17 11:50:33,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:50:33,037 INFO L134 CoverageAnalysis]: Checked inductivity of 2824 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 2814 trivial. 0 not checked. [2021-11-17 11:50:33,038 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 11:50:33,038 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385222966] [2021-11-17 11:50:33,038 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1385222966] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 11:50:33,038 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 11:50:33,038 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-17 11:50:33,038 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844371190] [2021-11-17 11:50:33,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 11:50:33,039 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 11:50:33,039 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 11:50:33,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 11:50:33,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-17 11:50:33,040 INFO L87 Difference]: Start difference. First operand 23873 states and 34839 transitions. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (35), 3 states have call predecessors, (35), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2021-11-17 11:50:35,146 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 11:50:37,482 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.33s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 11:51:13,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 11:51:13,216 INFO L93 Difference]: Finished difference Result 66179 states and 97300 transitions. [2021-11-17 11:51:13,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 11:51:13,217 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (35), 3 states have call predecessors, (35), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) Word has length 347 [2021-11-17 11:51:13,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 11:51:13,565 INFO L225 Difference]: With dead ends: 66179 [2021-11-17 11:51:13,565 INFO L226 Difference]: Without dead ends: 46864 [2021-11-17 11:51:13,691 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 116 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 11:51:13,693 INFO L933 BasicCegarLoop]: 13462 mSDtfsCounter, 7701 mSDsluCounter, 10257 mSDsCounter, 0 mSdLazyCounter, 5810 mSolverCounterSat, 3900 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9337 SdHoareTripleChecker+Valid, 23719 SdHoareTripleChecker+Invalid, 9712 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3900 IncrementalHoareTripleChecker+Valid, 5810 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 38.1s IncrementalHoareTripleChecker+Time [2021-11-17 11:51:13,694 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9337 Valid, 23719 Invalid, 9712 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3900 Valid, 5810 Invalid, 2 Unknown, 0 Unchecked, 38.1s Time] [2021-11-17 11:51:13,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46864 states. [2021-11-17 11:51:15,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46864 to 42949. [2021-11-17 11:51:15,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42949 states, 27471 states have (on average 1.2887772560154345) internal successors, (35404), 28479 states have internal predecessors, (35404), 13649 states have call successors, (13649), 1830 states have call predecessors, (13649), 1827 states have return successors, (13646), 13364 states have call predecessors, (13646), 13646 states have call successors, (13646) [2021-11-17 11:51:15,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42949 states to 42949 states and 62699 transitions. [2021-11-17 11:51:15,818 INFO L78 Accepts]: Start accepts. Automaton has 42949 states and 62699 transitions. Word has length 347 [2021-11-17 11:51:15,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 11:51:15,819 INFO L470 AbstractCegarLoop]: Abstraction has 42949 states and 62699 transitions. [2021-11-17 11:51:15,819 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (35), 3 states have call predecessors, (35), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2021-11-17 11:51:15,819 INFO L276 IsEmpty]: Start isEmpty. Operand 42949 states and 62699 transitions. [2021-11-17 11:51:15,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2021-11-17 11:51:15,830 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 11:51:15,831 INFO L514 BasicCegarLoop]: trace histogram [28, 28, 24, 24, 24, 24, 24, 24, 4, 4, 4, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1] [2021-11-17 11:51:15,831 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-17 11:51:15,832 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 11:51:15,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 11:51:15,832 INFO L85 PathProgramCache]: Analyzing trace with hash 73850328, now seen corresponding path program 1 times [2021-11-17 11:51:15,832 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 11:51:15,832 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194458984] [2021-11-17 11:51:15,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 11:51:15,833 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 11:51:16,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:16,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 11:51:16,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:16,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:51:16,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:16,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 11:51:16,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:16,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:51:16,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:16,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 11:51:16,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:16,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:51:16,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:16,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 11:51:16,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:16,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:51:16,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:16,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 11:51:16,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:16,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:51:16,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:16,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 11:51:16,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:16,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:51:16,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:16,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 11:51:16,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:16,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:51:16,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:16,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 11:51:16,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:16,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:51:16,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:16,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 11:51:16,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:16,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:51:16,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:16,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 11:51:16,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:16,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:51:16,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:16,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 11:51:16,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:16,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:51:16,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:16,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-17 11:51:16,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:16,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:51:16,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:16,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-17 11:51:16,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:16,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:51:16,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:16,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-17 11:51:16,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:16,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:51:16,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:16,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-11-17 11:51:16,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:16,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:51:16,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:16,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-11-17 11:51:16,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:16,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:51:16,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:16,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-11-17 11:51:16,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:16,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:51:16,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:16,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-11-17 11:51:16,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:16,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:51:16,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:16,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-11-17 11:51:16,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:16,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:51:16,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:16,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2021-11-17 11:51:16,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:16,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:51:16,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:16,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-11-17 11:51:16,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:16,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:51:16,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:16,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2021-11-17 11:51:16,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:16,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:51:16,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:16,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2021-11-17 11:51:16,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:16,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:51:16,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:16,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2021-11-17 11:51:16,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:16,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:51:16,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:16,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2021-11-17 11:51:16,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:16,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2021-11-17 11:51:16,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:16,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2021-11-17 11:51:16,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:16,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2021-11-17 11:51:16,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:16,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2021-11-17 11:51:16,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:16,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:51:16,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:16,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2021-11-17 11:51:16,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:16,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 325 [2021-11-17 11:51:16,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:16,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 338 [2021-11-17 11:51:16,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:16,956 INFO L134 CoverageAnalysis]: Checked inductivity of 2824 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2824 trivial. 0 not checked. [2021-11-17 11:51:16,956 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 11:51:16,957 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1194458984] [2021-11-17 11:51:16,957 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1194458984] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 11:51:16,957 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 11:51:16,957 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-17 11:51:16,957 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261191162] [2021-11-17 11:51:16,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 11:51:16,958 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-17 11:51:16,958 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 11:51:16,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-17 11:51:16,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-17 11:51:16,958 INFO L87 Difference]: Start difference. First operand 42949 states and 62699 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2021-11-17 11:51:19,082 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 11:51:42,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 11:51:42,977 INFO L93 Difference]: Finished difference Result 46862 states and 69084 transitions. [2021-11-17 11:51:42,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 11:51:42,978 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 347 [2021-11-17 11:51:42,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 11:51:43,260 INFO L225 Difference]: With dead ends: 46862 [2021-11-17 11:51:43,260 INFO L226 Difference]: Without dead ends: 46807 [2021-11-17 11:51:43,311 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 116 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 11:51:43,312 INFO L933 BasicCegarLoop]: 7067 mSDtfsCounter, 7715 mSDsluCounter, 8128 mSDsCounter, 0 mSdLazyCounter, 4059 mSolverCounterSat, 3779 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8683 SdHoareTripleChecker+Valid, 15195 SdHoareTripleChecker+Invalid, 7839 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3779 IncrementalHoareTripleChecker+Valid, 4059 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.5s IncrementalHoareTripleChecker+Time [2021-11-17 11:51:43,312 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8683 Valid, 15195 Invalid, 7839 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3779 Valid, 4059 Invalid, 1 Unknown, 0 Unchecked, 24.5s Time] [2021-11-17 11:51:43,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46807 states. [2021-11-17 11:51:44,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46807 to 42894. [2021-11-17 11:51:44,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42894 states, 27446 states have (on average 1.288603075129345) internal successors, (35367), 28442 states have internal predecessors, (35367), 13622 states have call successors, (13622), 1825 states have call predecessors, (13622), 1825 states have return successors, (13622), 13351 states have call predecessors, (13622), 13622 states have call successors, (13622) [2021-11-17 11:51:45,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42894 states to 42894 states and 62611 transitions. [2021-11-17 11:51:45,083 INFO L78 Accepts]: Start accepts. Automaton has 42894 states and 62611 transitions. Word has length 347 [2021-11-17 11:51:45,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 11:51:45,085 INFO L470 AbstractCegarLoop]: Abstraction has 42894 states and 62611 transitions. [2021-11-17 11:51:45,085 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2021-11-17 11:51:45,085 INFO L276 IsEmpty]: Start isEmpty. Operand 42894 states and 62611 transitions. [2021-11-17 11:51:45,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 404 [2021-11-17 11:51:45,130 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 11:51:45,131 INFO L514 BasicCegarLoop]: trace histogram [29, 29, 24, 24, 24, 24, 24, 24, 6, 6, 6, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:51:45,131 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-17 11:51:45,131 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 11:51:45,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 11:51:45,132 INFO L85 PathProgramCache]: Analyzing trace with hash -1772605552, now seen corresponding path program 1 times [2021-11-17 11:51:45,132 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 11:51:45,132 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933293379] [2021-11-17 11:51:45,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 11:51:45,132 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 11:51:45,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:46,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 11:51:46,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:46,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:51:46,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:46,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 11:51:46,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:46,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:51:46,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:46,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 11:51:46,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:46,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:51:46,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:46,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 11:51:46,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:46,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:51:46,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:46,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 11:51:46,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:46,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:51:46,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:46,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 11:51:46,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:46,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:51:46,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:46,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 11:51:46,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:46,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:51:46,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:46,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 11:51:46,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:46,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:51:46,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:46,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 11:51:46,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:46,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:51:46,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:46,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 11:51:46,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:46,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:51:46,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:46,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 11:51:46,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:46,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:51:46,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:46,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-17 11:51:46,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:46,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:51:46,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:46,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-17 11:51:46,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:46,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:51:46,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:46,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-17 11:51:46,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:46,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:51:46,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:46,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-11-17 11:51:46,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:46,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:51:46,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:46,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-11-17 11:51:46,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:46,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:51:46,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:46,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-11-17 11:51:46,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:46,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:51:46,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:46,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-11-17 11:51:46,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:46,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:51:46,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:46,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-11-17 11:51:46,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:46,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:51:46,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:46,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2021-11-17 11:51:46,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:46,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:51:46,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:46,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-11-17 11:51:46,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:46,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:51:46,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:46,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2021-11-17 11:51:46,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:46,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:51:46,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:46,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2021-11-17 11:51:46,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:46,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:51:46,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:46,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2021-11-17 11:51:46,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:46,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:51:46,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:46,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2021-11-17 11:51:46,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:46,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2021-11-17 11:51:46,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:46,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2021-11-17 11:51:46,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:46,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2021-11-17 11:51:46,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:46,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2021-11-17 11:51:46,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:46,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:51:46,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:46,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2021-11-17 11:51:46,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:46,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 325 [2021-11-17 11:51:46,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:46,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2021-11-17 11:51:46,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:46,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 345 [2021-11-17 11:51:46,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:46,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 371 [2021-11-17 11:51:46,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:46,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:51:46,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:46,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 11:51:46,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:46,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 11:51:46,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:46,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 392 [2021-11-17 11:51:46,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:46,454 INFO L134 CoverageAnalysis]: Checked inductivity of 2949 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 2934 trivial. 0 not checked. [2021-11-17 11:51:46,454 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 11:51:46,455 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933293379] [2021-11-17 11:51:46,455 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [933293379] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 11:51:46,455 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 11:51:46,455 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-17 11:51:46,455 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30586614] [2021-11-17 11:51:46,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 11:51:46,456 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 11:51:46,456 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 11:51:46,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 11:51:46,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-17 11:51:46,456 INFO L87 Difference]: Start difference. First operand 42894 states and 62611 transitions. Second operand has 4 states, 4 states have (on average 28.25) internal successors, (113), 3 states have internal predecessors, (113), 3 states have call successors, (41), 3 states have call predecessors, (41), 1 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) [2021-11-17 11:51:48,571 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 11:51:50,886 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.31s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 11:52:25,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 11:52:25,419 INFO L93 Difference]: Finished difference Result 105965 states and 155670 transitions. [2021-11-17 11:52:25,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 11:52:25,419 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.25) internal successors, (113), 3 states have internal predecessors, (113), 3 states have call successors, (41), 3 states have call predecessors, (41), 1 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) Word has length 403 [2021-11-17 11:52:25,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 11:52:25,914 INFO L225 Difference]: With dead ends: 105965 [2021-11-17 11:52:25,915 INFO L226 Difference]: Without dead ends: 62659 [2021-11-17 11:52:26,140 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 128 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 11:52:26,141 INFO L933 BasicCegarLoop]: 13914 mSDtfsCounter, 7641 mSDsluCounter, 10573 mSDsCounter, 0 mSdLazyCounter, 5799 mSolverCounterSat, 3786 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9274 SdHoareTripleChecker+Valid, 24487 SdHoareTripleChecker+Invalid, 9587 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3786 IncrementalHoareTripleChecker+Valid, 5799 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36.3s IncrementalHoareTripleChecker+Time [2021-11-17 11:52:26,141 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9274 Valid, 24487 Invalid, 9587 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3786 Valid, 5799 Invalid, 2 Unknown, 0 Unchecked, 36.3s Time] [2021-11-17 11:52:26,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62659 states. [2021-11-17 11:52:28,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62659 to 57437. [2021-11-17 11:52:28,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57437 states, 36764 states have (on average 1.2894135567402893) internal successors, (47404), 38096 states have internal predecessors, (47404), 18232 states have call successors, (18232), 2440 states have call predecessors, (18232), 2440 states have return successors, (18232), 17872 states have call predecessors, (18232), 18232 states have call successors, (18232) [2021-11-17 11:52:28,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57437 states to 57437 states and 83868 transitions. [2021-11-17 11:52:28,634 INFO L78 Accepts]: Start accepts. Automaton has 57437 states and 83868 transitions. Word has length 403 [2021-11-17 11:52:28,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 11:52:28,635 INFO L470 AbstractCegarLoop]: Abstraction has 57437 states and 83868 transitions. [2021-11-17 11:52:28,635 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.25) internal successors, (113), 3 states have internal predecessors, (113), 3 states have call successors, (41), 3 states have call predecessors, (41), 1 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) [2021-11-17 11:52:28,635 INFO L276 IsEmpty]: Start isEmpty. Operand 57437 states and 83868 transitions. [2021-11-17 11:52:28,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 400 [2021-11-17 11:52:28,680 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 11:52:28,681 INFO L514 BasicCegarLoop]: trace histogram [30, 30, 25, 25, 25, 25, 25, 25, 5, 5, 5, 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, 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 11:52:28,681 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-17 11:52:28,681 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 11:52:28,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 11:52:28,681 INFO L85 PathProgramCache]: Analyzing trace with hash -450706611, now seen corresponding path program 1 times [2021-11-17 11:52:28,682 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 11:52:28,682 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422800348] [2021-11-17 11:52:28,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 11:52:28,682 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 11:52:28,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:29,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 11:52:29,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:29,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:52:29,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:29,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 11:52:29,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:29,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:52:29,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:29,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 11:52:29,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:29,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:52:29,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:29,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 11:52:29,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:29,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:52:29,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:29,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 11:52:29,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:29,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:52:29,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:29,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 11:52:29,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:29,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:52:29,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:29,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 11:52:29,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:29,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:52:29,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:29,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 11:52:29,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:29,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:52:29,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:29,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 11:52:29,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:29,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:52:29,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:29,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 11:52:29,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:29,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:52:29,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:29,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 11:52:29,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:29,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:52:29,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:29,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-17 11:52:29,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:29,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:52:29,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:29,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-17 11:52:29,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:29,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:52:29,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:29,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-17 11:52:29,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:29,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:52:29,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:29,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-11-17 11:52:29,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:29,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:52:29,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:29,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-11-17 11:52:29,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:29,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:52:29,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:29,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-11-17 11:52:29,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:29,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:52:29,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:29,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-11-17 11:52:29,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:29,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:52:29,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:29,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-11-17 11:52:29,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:29,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:52:29,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:29,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2021-11-17 11:52:29,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:29,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:52:29,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:29,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-11-17 11:52:29,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:29,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:52:29,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:29,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2021-11-17 11:52:29,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:29,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:52:29,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:29,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2021-11-17 11:52:29,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:29,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:52:29,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:29,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2021-11-17 11:52:29,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:29,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:52:29,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:29,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2021-11-17 11:52:29,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:29,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2021-11-17 11:52:29,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:29,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2021-11-17 11:52:29,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:29,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2021-11-17 11:52:29,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:29,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2021-11-17 11:52:29,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:29,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2021-11-17 11:52:29,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:29,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:52:29,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:29,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2021-11-17 11:52:29,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:29,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 333 [2021-11-17 11:52:29,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:29,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2021-11-17 11:52:29,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:29,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 364 [2021-11-17 11:52:29,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:29,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 370 [2021-11-17 11:52:29,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:29,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:52:29,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:29,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 382 [2021-11-17 11:52:29,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:29,872 INFO L134 CoverageAnalysis]: Checked inductivity of 3148 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 3145 trivial. 0 not checked. [2021-11-17 11:52:29,872 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 11:52:29,872 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422800348] [2021-11-17 11:52:29,872 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [422800348] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 11:52:29,872 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 11:52:29,872 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-17 11:52:29,873 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819107669] [2021-11-17 11:52:29,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 11:52:29,873 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 11:52:29,873 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 11:52:29,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 11:52:29,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-17 11:52:29,874 INFO L87 Difference]: Start difference. First operand 57437 states and 83868 transitions. Second operand has 4 states, 4 states have (on average 27.0) internal successors, (108), 3 states have internal predecessors, (108), 3 states have call successors, (39), 3 states have call predecessors, (39), 1 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) [2021-11-17 11:52:31,995 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 11:52:34,318 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.32s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] Killed by 15