./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 c3fed411 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 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-18 14:40:40,630 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-18 14:40:40,632 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-18 14:40:40,682 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-18 14:40:40,682 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-18 14:40:40,685 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-18 14:40:40,686 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-18 14:40:40,689 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-18 14:40:40,690 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-18 14:40:40,695 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-18 14:40:40,696 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-18 14:40:40,697 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-18 14:40:40,697 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-18 14:40:40,699 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-18 14:40:40,701 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-18 14:40:40,707 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-18 14:40:40,708 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-18 14:40:40,709 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-18 14:40:40,711 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-18 14:40:40,716 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-18 14:40:40,717 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-18 14:40:40,718 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-18 14:40:40,723 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-18 14:40:40,724 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-18 14:40:40,730 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-18 14:40:40,730 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-18 14:40:40,731 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-18 14:40:40,732 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-18 14:40:40,732 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-18 14:40:40,733 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-18 14:40:40,733 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-18 14:40:40,734 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-18 14:40:40,735 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-18 14:40:40,736 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-18 14:40:40,737 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-18 14:40:40,738 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-18 14:40:40,738 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-18 14:40:40,738 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-18 14:40:40,739 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-18 14:40:40,739 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-18 14:40:40,740 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-18 14:40:40,741 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-18 14:40:40,772 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-18 14:40:40,772 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-18 14:40:40,773 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-18 14:40:40,773 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-18 14:40:40,774 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-18 14:40:40,774 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-18 14:40:40,774 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-18 14:40:40,774 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-18 14:40:40,775 INFO L138 SettingsManager]: * Use SBE=true [2021-12-18 14:40:40,775 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-18 14:40:40,776 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-18 14:40:40,776 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-18 14:40:40,776 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-18 14:40:40,776 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-18 14:40:40,776 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-18 14:40:40,776 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-18 14:40:40,777 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-18 14:40:40,777 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-18 14:40:40,777 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-18 14:40:40,777 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-18 14:40:40,777 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-18 14:40:40,778 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-18 14:40:40,778 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-18 14:40:40,778 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-18 14:40:40,778 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-18 14:40:40,778 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-18 14:40:40,778 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-18 14:40:40,779 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-18 14:40:40,779 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-18 14:40:40,779 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-18 14:40:40,779 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-18 14:40:40,779 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> feb979a4b5fcdd2bc35e4615912af4a15806605c7277bcadcde1900230fbf647 [2021-12-18 14:40:41,000 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-18 14:40:41,023 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-18 14:40:41,025 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-18 14:40:41,026 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-18 14:40:41,027 INFO L275 PluginConnector]: CDTParser initialized [2021-12-18 14:40:41,028 INFO L432 ainManager$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 [2021-12-18 14:40:41,092 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1c0b40203/f39148cb747340c88892d39efbd0469b/FLAGd45d0fc97 [2021-12-18 14:40:41,951 INFO L306 CDTParser]: Found 1 translation units. [2021-12-18 14:40:41,952 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 [2021-12-18 14:40:42,019 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1c0b40203/f39148cb747340c88892d39efbd0469b/FLAGd45d0fc97 [2021-12-18 14:40:42,419 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1c0b40203/f39148cb747340c88892d39efbd0469b [2021-12-18 14:40:42,444 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-18 14:40:42,446 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-18 14:40:42,451 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-18 14:40:42,451 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-18 14:40:42,458 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-18 14:40:42,459 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 02:40:42" (1/1) ... [2021-12-18 14:40:42,460 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7996bddb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:40:42, skipping insertion in model container [2021-12-18 14:40:42,460 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 02:40:42" (1/1) ... [2021-12-18 14:40:42,476 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-18 14:40:42,637 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-18 14:40:46,932 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] [2021-12-18 14:40:46,936 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] [2021-12-18 14:40:46,937 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] [2021-12-18 14:40:46,937 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] [2021-12-18 14:40:46,976 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-18 14:40:47,075 INFO L203 MainTranslator]: Completed pre-run [2021-12-18 14:40:47,722 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] [2021-12-18 14:40:47,723 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] [2021-12-18 14:40:47,724 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] [2021-12-18 14:40:47,724 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] [2021-12-18 14:40:47,733 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-18 14:40:48,189 INFO L208 MainTranslator]: Completed translation [2021-12-18 14:40:48,189 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:40:48 WrapperNode [2021-12-18 14:40:48,190 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-18 14:40:48,191 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-18 14:40:48,191 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-18 14:40:48,191 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-18 14:40:48,197 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:40:48" (1/1) ... [2021-12-18 14:40:48,342 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:40:48" (1/1) ... [2021-12-18 14:40:48,707 INFO L137 Inliner]: procedures = 603, calls = 5908, calls flagged for inlining = 318, calls inlined = 308, statements flattened = 12748 [2021-12-18 14:40:48,708 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-18 14:40:48,709 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-18 14:40:48,709 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-18 14:40:48,709 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-18 14:40:48,717 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:40:48" (1/1) ... [2021-12-18 14:40:48,717 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:40:48" (1/1) ... [2021-12-18 14:40:48,787 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:40:48" (1/1) ... [2021-12-18 14:40:48,788 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:40:48" (1/1) ... [2021-12-18 14:40:49,077 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:40:48" (1/1) ... [2021-12-18 14:40:49,116 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:40:48" (1/1) ... [2021-12-18 14:40:49,172 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:40:48" (1/1) ... [2021-12-18 14:40:49,335 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-18 14:40:49,352 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-18 14:40:49,353 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-18 14:40:49,354 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-18 14:40:49,356 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:40:48" (1/1) ... [2021-12-18 14:40:49,364 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-18 14:40:49,390 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 14:40:49,429 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-18 14:40:49,489 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-18 14:40:49,547 INFO L130 BoogieDeclarations]: Found specification of procedure init_realtek_8211b [2021-12-18 14:40:49,547 INFO L138 BoogieDeclarations]: Found implementation of procedure init_realtek_8211b [2021-12-18 14:40:49,547 INFO L130 BoogieDeclarations]: Found specification of procedure nv_nway_reset [2021-12-18 14:40:49,547 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_nway_reset [2021-12-18 14:40:49,547 INFO L130 BoogieDeclarations]: Found specification of procedure device_set_wakeup_enable [2021-12-18 14:40:49,547 INFO L138 BoogieDeclarations]: Found implementation of procedure device_set_wakeup_enable [2021-12-18 14:40:49,547 INFO L130 BoogieDeclarations]: Found specification of procedure nv_drain_rxtx [2021-12-18 14:40:49,547 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_drain_rxtx [2021-12-18 14:40:49,547 INFO L130 BoogieDeclarations]: Found specification of procedure nv_start_tx [2021-12-18 14:40:49,547 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_start_tx [2021-12-18 14:40:49,548 INFO L130 BoogieDeclarations]: Found specification of procedure netif_addr_lock [2021-12-18 14:40:49,548 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_addr_lock [2021-12-18 14:40:49,548 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-12-18 14:40:49,548 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-12-18 14:40:49,548 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-18 14:40:49,548 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-18 14:40:49,548 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_automaton_state_0_6 [2021-12-18 14:40:49,548 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_automaton_state_0_6 [2021-12-18 14:40:49,548 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2021-12-18 14:40:49,548 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2021-12-18 14:40:49,548 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-12-18 14:40:49,548 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-12-18 14:40:49,548 INFO L130 BoogieDeclarations]: Found specification of procedure nv_set_multicast [2021-12-18 14:40:49,548 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_set_multicast [2021-12-18 14:40:49,549 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-18 14:40:49,549 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-18 14:40:49,549 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-12-18 14:40:49,549 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-12-18 14:40:49,549 INFO L130 BoogieDeclarations]: Found specification of procedure nv_msi_workaround [2021-12-18 14:40:49,549 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_msi_workaround [2021-12-18 14:40:49,549 INFO L130 BoogieDeclarations]: Found specification of procedure nv_get_empty_tx_slots [2021-12-18 14:40:49,549 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_get_empty_tx_slots [2021-12-18 14:40:49,550 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2021-12-18 14:40:49,550 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2021-12-18 14:40:49,550 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-12-18 14:40:49,550 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-12-18 14:40:49,550 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2021-12-18 14:40:49,550 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2021-12-18 14:40:49,551 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-12-18 14:40:49,551 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-12-18 14:40:49,551 INFO L130 BoogieDeclarations]: Found specification of procedure nv_close [2021-12-18 14:40:49,551 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_close [2021-12-18 14:40:49,551 INFO L130 BoogieDeclarations]: Found specification of procedure dma_high [2021-12-18 14:40:49,552 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_high [2021-12-18 14:40:49,552 INFO L130 BoogieDeclarations]: Found specification of procedure nv_enable_hw_interrupts [2021-12-18 14:40:49,552 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_enable_hw_interrupts [2021-12-18 14:40:49,553 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2021-12-18 14:40:49,553 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2021-12-18 14:40:49,553 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-18 14:40:49,553 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-18 14:40:49,553 INFO L130 BoogieDeclarations]: Found specification of procedure nv_start_rxtx [2021-12-18 14:40:49,554 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_start_rxtx [2021-12-18 14:40:49,555 INFO L130 BoogieDeclarations]: Found specification of procedure nv_vlan_mode [2021-12-18 14:40:49,555 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_vlan_mode [2021-12-18 14:40:49,555 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-12-18 14:40:49,555 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-12-18 14:40:49,556 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-12-18 14:40:49,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-12-18 14:40:49,556 INFO L130 BoogieDeclarations]: Found specification of procedure init_realtek_8201 [2021-12-18 14:40:49,556 INFO L138 BoogieDeclarations]: Found implementation of procedure init_realtek_8201 [2021-12-18 14:40:49,556 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-12-18 14:40:49,557 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-12-18 14:40:49,557 INFO L130 BoogieDeclarations]: Found specification of procedure reg_delay [2021-12-18 14:40:49,557 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_delay [2021-12-18 14:40:49,557 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2021-12-18 14:40:49,557 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2021-12-18 14:40:49,557 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-12-18 14:40:49,558 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-12-18 14:40:49,558 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-12-18 14:40:49,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-12-18 14:40:49,558 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-18 14:40:49,558 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-18 14:40:49,559 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-12-18 14:40:49,559 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-12-18 14:40:49,559 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tailroom [2021-12-18 14:40:49,559 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tailroom [2021-12-18 14:40:49,559 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-18 14:40:49,559 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-12-18 14:40:49,559 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-12-18 14:40:49,560 INFO L130 BoogieDeclarations]: Found specification of procedure pci_push [2021-12-18 14:40:49,560 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_push [2021-12-18 14:40:49,560 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tx_timestamp [2021-12-18 14:40:49,560 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tx_timestamp [2021-12-18 14:40:49,560 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync [2021-12-18 14:40:49,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync [2021-12-18 14:40:49,561 INFO L130 BoogieDeclarations]: Found specification of procedure netif_schedule_queue [2021-12-18 14:40:49,561 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_schedule_queue [2021-12-18 14:40:49,561 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-12-18 14:40:49,561 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-12-18 14:40:49,561 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-12-18 14:40:49,575 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-12-18 14:40:49,575 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-12-18 14:40:49,575 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-12-18 14:40:49,576 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2021-12-18 14:40:49,576 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2021-12-18 14:40:49,576 INFO L130 BoogieDeclarations]: Found specification of procedure nv_alloc_rx_optimized [2021-12-18 14:40:49,576 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_alloc_rx_optimized [2021-12-18 14:40:49,576 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-18 14:40:49,577 INFO L130 BoogieDeclarations]: Found specification of procedure __napi_schedule [2021-12-18 14:40:49,577 INFO L138 BoogieDeclarations]: Found implementation of procedure __napi_schedule [2021-12-18 14:40:49,577 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-12-18 14:40:49,577 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-12-18 14:40:49,577 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-12-18 14:40:49,577 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-12-18 14:40:49,577 INFO L130 BoogieDeclarations]: Found specification of procedure enable_irq_lockdep [2021-12-18 14:40:49,578 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_irq_lockdep [2021-12-18 14:40:49,578 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-18 14:40:49,578 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-12-18 14:40:49,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-12-18 14:40:49,578 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-18 14:40:49,578 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-12-18 14:40:49,579 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-12-18 14:40:49,580 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-18 14:40:49,581 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-18 14:40:49,582 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_forcedeth_pci_driver_exit_20_2 [2021-12-18 14:40:49,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_forcedeth_pci_driver_exit_20_2 [2021-12-18 14:40:49,583 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-12-18 14:40:49,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-12-18 14:40:49,584 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-12-18 14:40:49,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-12-18 14:40:49,584 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-12-18 14:40:49,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-12-18 14:40:49,589 INFO L130 BoogieDeclarations]: Found specification of procedure nv_drain_tx [2021-12-18 14:40:49,590 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_drain_tx [2021-12-18 14:40:49,590 INFO L130 BoogieDeclarations]: Found specification of procedure nv_update_stats [2021-12-18 14:40:49,591 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_update_stats [2021-12-18 14:40:49,591 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-12-18 14:40:49,591 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-12-18 14:40:49,591 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-12-18 14:40:49,591 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-12-18 14:40:49,591 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_sent_queue [2021-12-18 14:40:49,591 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_sent_queue [2021-12-18 14:40:49,592 INFO L130 BoogieDeclarations]: Found specification of procedure get_hwbase [2021-12-18 14:40:49,592 INFO L138 BoogieDeclarations]: Found implementation of procedure get_hwbase [2021-12-18 14:40:49,592 INFO L130 BoogieDeclarations]: Found specification of procedure setup_hw_rings [2021-12-18 14:40:49,592 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_hw_rings [2021-12-18 14:40:49,592 INFO L130 BoogieDeclarations]: Found specification of procedure nv_nic_irq_tx [2021-12-18 14:40:49,592 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_nic_irq_tx [2021-12-18 14:40:49,592 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-18 14:40:49,592 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-12-18 14:40:49,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-12-18 14:40:49,593 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-12-18 14:40:49,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-12-18 14:40:49,593 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2021-12-18 14:40:49,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2021-12-18 14:40:49,593 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_4 [2021-12-18 14:40:49,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_4 [2021-12-18 14:40:49,593 INFO L130 BoogieDeclarations]: Found specification of procedure nv_free_irq [2021-12-18 14:40:49,594 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_free_irq [2021-12-18 14:40:49,594 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2021-12-18 14:40:49,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2021-12-18 14:40:49,594 INFO L130 BoogieDeclarations]: Found specification of procedure nv_shutdown [2021-12-18 14:40:49,594 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_shutdown [2021-12-18 14:40:49,594 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-18 14:40:49,594 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2021-12-18 14:40:49,594 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2021-12-18 14:40:49,595 INFO L130 BoogieDeclarations]: Found specification of procedure nv_suspend [2021-12-18 14:40:49,595 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_suspend [2021-12-18 14:40:49,595 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-12-18 14:40:49,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-12-18 14:40:49,595 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-12-18 14:40:49,595 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-12-18 14:40:49,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-18 14:40:49,595 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-18 14:40:49,596 INFO L130 BoogieDeclarations]: Found specification of procedure nv_gear_backoff_reseed [2021-12-18 14:40:49,596 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_gear_backoff_reseed [2021-12-18 14:40:49,596 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-18 14:40:49,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-18 14:40:49,596 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headlen [2021-12-18 14:40:49,596 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headlen [2021-12-18 14:40:49,596 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2021-12-18 14:40:49,596 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2021-12-18 14:40:49,597 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_dma_map [2021-12-18 14:40:49,597 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_dma_map [2021-12-18 14:40:49,597 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-12-18 14:40:49,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-12-18 14:40:49,597 INFO L130 BoogieDeclarations]: Found specification of procedure nv_alloc_rx [2021-12-18 14:40:49,597 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_alloc_rx [2021-12-18 14:40:49,597 INFO L130 BoogieDeclarations]: Found specification of procedure skb_is_gso [2021-12-18 14:40:49,597 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_is_gso [2021-12-18 14:40:49,598 INFO L130 BoogieDeclarations]: Found specification of procedure nv_nic_irq_other [2021-12-18 14:40:49,598 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_nic_irq_other [2021-12-18 14:40:49,598 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-12-18 14:40:49,598 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-12-18 14:40:49,598 INFO L130 BoogieDeclarations]: Found specification of procedure nv_nic_irq_rx [2021-12-18 14:40:49,598 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_nic_irq_rx [2021-12-18 14:40:49,598 INFO L130 BoogieDeclarations]: Found specification of procedure nv_restore_mac_addr [2021-12-18 14:40:49,598 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_restore_mac_addr [2021-12-18 14:40:49,599 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2021-12-18 14:40:49,599 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2021-12-18 14:40:49,599 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-18 14:40:49,599 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-18 14:40:49,599 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-12-18 14:40:49,599 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-12-18 14:40:49,599 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-12-18 14:40:49,599 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-12-18 14:40:49,600 INFO L130 BoogieDeclarations]: Found specification of procedure nv_napi_disable [2021-12-18 14:40:49,600 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_napi_disable [2021-12-18 14:40:49,600 INFO L130 BoogieDeclarations]: Found specification of procedure u64_stats_fetch_begin_bh [2021-12-18 14:40:49,600 INFO L138 BoogieDeclarations]: Found implementation of procedure u64_stats_fetch_begin_bh [2021-12-18 14:40:49,600 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2021-12-18 14:40:49,600 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2021-12-18 14:40:49,600 INFO L130 BoogieDeclarations]: Found specification of procedure nv_tx_timeout [2021-12-18 14:40:49,600 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_tx_timeout [2021-12-18 14:40:49,601 INFO L130 BoogieDeclarations]: Found specification of procedure nv_rx_process_optimized [2021-12-18 14:40:49,601 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_rx_process_optimized [2021-12-18 14:40:49,601 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-12-18 14:40:49,601 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-12-18 14:40:49,601 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-12-18 14:40:49,601 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-12-18 14:40:49,601 INFO L130 BoogieDeclarations]: Found specification of procedure nv_init_ring [2021-12-18 14:40:49,601 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_init_ring [2021-12-18 14:40:49,602 INFO L130 BoogieDeclarations]: Found specification of procedure napi_schedule_prep [2021-12-18 14:40:49,602 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_schedule_prep [2021-12-18 14:40:49,602 INFO L130 BoogieDeclarations]: Found specification of procedure nv_legacybackoff_reseed [2021-12-18 14:40:49,602 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_legacybackoff_reseed [2021-12-18 14:40:49,602 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-18 14:40:49,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-18 14:40:49,602 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2021-12-18 14:40:49,602 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2021-12-18 14:40:49,603 INFO L130 BoogieDeclarations]: Found specification of procedure nv_poll_controller [2021-12-18 14:40:49,603 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_poll_controller [2021-12-18 14:40:49,603 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-12-18 14:40:49,603 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-12-18 14:40:49,603 INFO L130 BoogieDeclarations]: Found specification of procedure nv_tx_done_optimized [2021-12-18 14:40:49,603 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_tx_done_optimized [2021-12-18 14:40:49,619 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-18 14:40:49,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-18 14:40:49,619 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-18 14:40:49,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-18 14:40:49,620 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-12-18 14:40:49,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-12-18 14:40:49,620 INFO L130 BoogieDeclarations]: Found specification of procedure nv_get_sset_count [2021-12-18 14:40:49,620 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_get_sset_count [2021-12-18 14:40:49,620 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2021-12-18 14:40:49,620 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2021-12-18 14:40:49,620 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-12-18 14:40:49,621 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-12-18 14:40:49,621 INFO L130 BoogieDeclarations]: Found specification of procedure nv_txrx_gate [2021-12-18 14:40:49,622 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_txrx_gate [2021-12-18 14:40:49,624 INFO L130 BoogieDeclarations]: Found specification of procedure nv_remove [2021-12-18 14:40:49,625 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_remove [2021-12-18 14:40:49,625 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-12-18 14:40:49,625 INFO L130 BoogieDeclarations]: Found specification of procedure nv_napi_enable [2021-12-18 14:40:49,625 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_napi_enable [2021-12-18 14:40:49,625 INFO L130 BoogieDeclarations]: Found specification of procedure disable_irq [2021-12-18 14:40:49,625 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_irq [2021-12-18 14:40:49,625 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2021-12-18 14:40:49,625 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2021-12-18 14:40:49,626 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-12-18 14:40:49,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-12-18 14:40:49,626 INFO L130 BoogieDeclarations]: Found specification of procedure u64_stats_update_begin [2021-12-18 14:40:49,626 INFO L138 BoogieDeclarations]: Found implementation of procedure u64_stats_update_begin [2021-12-18 14:40:49,627 INFO L130 BoogieDeclarations]: Found specification of procedure napi_gro_receive [2021-12-18 14:40:49,627 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_gro_receive [2021-12-18 14:40:49,627 INFO L130 BoogieDeclarations]: Found specification of procedure free_rings [2021-12-18 14:40:49,627 INFO L138 BoogieDeclarations]: Found implementation of procedure free_rings [2021-12-18 14:40:49,627 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-12-18 14:40:49,627 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-12-18 14:40:49,627 INFO L130 BoogieDeclarations]: Found specification of procedure nv_txrx_reset [2021-12-18 14:40:49,627 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_txrx_reset [2021-12-18 14:40:49,627 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-18 14:40:49,628 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-18 14:40:49,628 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2021-12-18 14:40:49,628 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2021-12-18 14:40:49,628 INFO L130 BoogieDeclarations]: Found specification of procedure nv_do_nic_poll [2021-12-18 14:40:49,628 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_do_nic_poll [2021-12-18 14:40:49,628 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msix [2021-12-18 14:40:49,628 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msix [2021-12-18 14:40:49,628 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-12-18 14:40:49,629 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-12-18 14:40:49,629 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2021-12-18 14:40:49,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2021-12-18 14:40:49,629 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2021-12-18 14:40:49,629 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2021-12-18 14:40:49,629 INFO L130 BoogieDeclarations]: Found specification of procedure nv_resume [2021-12-18 14:40:49,629 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_resume [2021-12-18 14:40:49,629 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_schedule [2021-12-18 14:40:49,629 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_schedule [2021-12-18 14:40:49,630 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2021-12-18 14:40:49,630 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2021-12-18 14:40:49,630 INFO L130 BoogieDeclarations]: Found specification of procedure round_jiffies [2021-12-18 14:40:49,630 INFO L138 BoogieDeclarations]: Found implementation of procedure round_jiffies [2021-12-18 14:40:49,630 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-12-18 14:40:49,630 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-12-18 14:40:49,630 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2021-12-18 14:40:49,630 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2021-12-18 14:40:49,631 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2021-12-18 14:40:49,631 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2021-12-18 14:40:49,631 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-18 14:40:49,631 INFO L130 BoogieDeclarations]: Found specification of procedure mii_rw [2021-12-18 14:40:49,631 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_rw [2021-12-18 14:40:49,631 INFO L130 BoogieDeclarations]: Found specification of procedure set_msix_vector_map [2021-12-18 14:40:49,631 INFO L138 BoogieDeclarations]: Found implementation of procedure set_msix_vector_map [2021-12-18 14:40:49,631 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-12-18 14:40:49,632 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-12-18 14:40:49,632 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value_probe [2021-12-18 14:40:49,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value_probe [2021-12-18 14:40:49,632 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-18 14:40:49,632 INFO L130 BoogieDeclarations]: Found specification of procedure nv_set_loopback [2021-12-18 14:40:49,632 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_set_loopback [2021-12-18 14:40:49,632 INFO L130 BoogieDeclarations]: Found specification of procedure nv_mac_reset [2021-12-18 14:40:49,632 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_mac_reset [2021-12-18 14:40:49,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-18 14:40:49,633 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_completed_queue [2021-12-18 14:40:49,633 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_completed_queue [2021-12-18 14:40:49,633 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-12-18 14:40:49,633 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-12-18 14:40:49,633 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2021-12-18 14:40:49,633 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2021-12-18 14:40:49,633 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2021-12-18 14:40:49,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2021-12-18 14:40:49,634 INFO L130 BoogieDeclarations]: Found specification of procedure nv_tx_done [2021-12-18 14:40:49,634 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_tx_done [2021-12-18 14:40:49,634 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2021-12-18 14:40:49,634 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2021-12-18 14:40:49,634 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2021-12-18 14:40:49,634 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2021-12-18 14:40:49,634 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-12-18 14:40:49,634 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-12-18 14:40:49,635 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-12-18 14:40:49,635 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-12-18 14:40:49,635 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq [2021-12-18 14:40:49,635 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq [2021-12-18 14:40:49,635 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-12-18 14:40:49,635 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-12-18 14:40:49,635 INFO L130 BoogieDeclarations]: Found specification of procedure get_random_bytes [2021-12-18 14:40:49,635 INFO L138 BoogieDeclarations]: Found implementation of procedure get_random_bytes [2021-12-18 14:40:49,636 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2021-12-18 14:40:49,636 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2021-12-18 14:40:49,636 INFO L130 BoogieDeclarations]: Found specification of procedure nv_linkchange [2021-12-18 14:40:49,636 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_linkchange [2021-12-18 14:40:49,636 INFO L130 BoogieDeclarations]: Found specification of procedure nv_disable_hw_interrupts [2021-12-18 14:40:49,636 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_disable_hw_interrupts [2021-12-18 14:40:49,636 INFO L130 BoogieDeclarations]: Found specification of procedure set_bufsize [2021-12-18 14:40:49,636 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bufsize [2021-12-18 14:40:49,637 INFO L130 BoogieDeclarations]: Found specification of procedure phy_init [2021-12-18 14:40:49,637 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_init [2021-12-18 14:40:49,637 INFO L130 BoogieDeclarations]: Found specification of procedure dma_low [2021-12-18 14:40:49,637 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_low [2021-12-18 14:40:49,637 INFO L130 BoogieDeclarations]: Found specification of procedure nv_copy_mac_to_hw [2021-12-18 14:40:49,637 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_copy_mac_to_hw [2021-12-18 14:40:49,637 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-12-18 14:40:49,637 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-12-18 14:40:49,637 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-12-18 14:40:49,638 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-12-18 14:40:49,638 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2021-12-18 14:40:49,638 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2021-12-18 14:40:49,638 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2021-12-18 14:40:49,638 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2021-12-18 14:40:49,638 INFO L130 BoogieDeclarations]: Found specification of procedure nv_stop_tx [2021-12-18 14:40:49,638 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_stop_tx [2021-12-18 14:40:49,638 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_lock_bh [2021-12-18 14:40:49,639 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_lock_bh [2021-12-18 14:40:49,639 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-12-18 14:40:49,639 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-12-18 14:40:49,639 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_unlock_bh [2021-12-18 14:40:49,639 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_unlock_bh [2021-12-18 14:40:49,639 INFO L130 BoogieDeclarations]: Found specification of procedure nv_force_linkspeed [2021-12-18 14:40:49,639 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_force_linkspeed [2021-12-18 14:40:49,639 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-18 14:40:49,640 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-18 14:40:49,640 INFO L130 BoogieDeclarations]: Found specification of procedure nv_update_pause [2021-12-18 14:40:49,640 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_update_pause [2021-12-18 14:40:49,640 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-18 14:40:49,640 INFO L130 BoogieDeclarations]: Found specification of procedure nv_init_tx [2021-12-18 14:40:49,640 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_init_tx [2021-12-18 14:40:49,640 INFO L130 BoogieDeclarations]: Found specification of procedure eth_type_trans [2021-12-18 14:40:49,640 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_type_trans [2021-12-18 14:40:49,640 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2021-12-18 14:40:49,641 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2021-12-18 14:40:49,641 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-18 14:40:49,641 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-18 14:40:49,641 INFO L130 BoogieDeclarations]: Found specification of procedure nv_enable_irq [2021-12-18 14:40:49,641 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_enable_irq [2021-12-18 14:40:49,641 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~$Pointer$~TO~int [2021-12-18 14:40:49,641 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~$Pointer$~TO~int [2021-12-18 14:40:49,641 INFO L130 BoogieDeclarations]: Found specification of procedure nv_unmap_txskb [2021-12-18 14:40:49,642 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_unmap_txskb [2021-12-18 14:40:49,642 INFO L130 BoogieDeclarations]: Found specification of procedure enable_irq [2021-12-18 14:40:49,642 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_irq [2021-12-18 14:40:49,642 INFO L130 BoogieDeclarations]: Found specification of procedure nv_stop_rx [2021-12-18 14:40:49,642 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_stop_rx [2021-12-18 14:40:49,642 INFO L130 BoogieDeclarations]: Found specification of procedure u64_stats_fetch_retry_bh [2021-12-18 14:40:49,642 INFO L138 BoogieDeclarations]: Found implementation of procedure u64_stats_fetch_retry_bh [2021-12-18 14:40:49,642 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-12-18 14:40:49,643 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-12-18 14:40:49,643 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2021-12-18 14:40:49,643 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2021-12-18 14:40:49,643 INFO L130 BoogieDeclarations]: Found specification of procedure nv_getlen [2021-12-18 14:40:49,643 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_getlen [2021-12-18 14:40:49,643 INFO L130 BoogieDeclarations]: Found specification of procedure nv_link_irq [2021-12-18 14:40:49,643 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_link_irq [2021-12-18 14:40:49,643 INFO L130 BoogieDeclarations]: Found specification of procedure nv_optimized [2021-12-18 14:40:49,644 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_optimized [2021-12-18 14:40:49,644 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_automaton_state_2_6 [2021-12-18 14:40:49,644 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_automaton_state_2_6 [2021-12-18 14:40:49,644 INFO L130 BoogieDeclarations]: Found specification of procedure nv_stop_rxtx [2021-12-18 14:40:49,644 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_stop_rxtx [2021-12-18 14:40:49,644 INFO L130 BoogieDeclarations]: Found specification of procedure nv_update_linkspeed [2021-12-18 14:40:49,644 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_update_linkspeed [2021-12-18 14:40:49,644 INFO L130 BoogieDeclarations]: Found specification of procedure using_multi_irqs [2021-12-18 14:40:49,645 INFO L138 BoogieDeclarations]: Found implementation of procedure using_multi_irqs [2021-12-18 14:40:49,645 INFO L130 BoogieDeclarations]: Found specification of procedure netif_addr_unlock [2021-12-18 14:40:49,645 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_addr_unlock [2021-12-18 14:40:49,645 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-12-18 14:40:49,645 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-12-18 14:40:49,645 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2021-12-18 14:40:49,645 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2021-12-18 14:40:49,645 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2021-12-18 14:40:49,645 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2021-12-18 14:40:49,646 INFO L130 BoogieDeclarations]: Found specification of procedure dql_avail [2021-12-18 14:40:49,646 INFO L138 BoogieDeclarations]: Found implementation of procedure dql_avail [2021-12-18 14:40:49,646 INFO L130 BoogieDeclarations]: Found specification of procedure disable_irq_lockdep [2021-12-18 14:40:49,646 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_irq_lockdep [2021-12-18 14:40:49,646 INFO L130 BoogieDeclarations]: Found specification of procedure nv_disable_irq [2021-12-18 14:40:49,646 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_disable_irq [2021-12-18 14:40:49,646 INFO L130 BoogieDeclarations]: Found specification of procedure nv_open [2021-12-18 14:40:49,646 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_open [2021-12-18 14:40:49,647 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_automaton_state_1_6 [2021-12-18 14:40:49,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_automaton_state_1_6 [2021-12-18 14:40:49,647 INFO L130 BoogieDeclarations]: Found specification of procedure nv_start_rx [2021-12-18 14:40:49,647 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_start_rx [2021-12-18 14:40:49,647 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-12-18 14:40:49,647 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-12-18 14:40:49,647 INFO L130 BoogieDeclarations]: Found specification of procedure phy_reset [2021-12-18 14:40:49,647 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_reset [2021-12-18 14:40:49,648 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msi [2021-12-18 14:40:49,648 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msi [2021-12-18 14:40:49,648 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-12-18 14:40:49,648 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-12-18 14:40:49,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-18 14:40:49,648 INFO L130 BoogieDeclarations]: Found specification of procedure get_nvpriv [2021-12-18 14:40:49,648 INFO L138 BoogieDeclarations]: Found implementation of procedure get_nvpriv [2021-12-18 14:40:49,648 INFO L130 BoogieDeclarations]: Found specification of procedure nv_request_irq [2021-12-18 14:40:49,648 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_request_irq [2021-12-18 14:40:49,649 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-12-18 14:40:49,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-12-18 14:40:49,649 INFO L130 BoogieDeclarations]: Found specification of procedure nv_get_regs_len [2021-12-18 14:40:49,649 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_get_regs_len [2021-12-18 14:40:51,087 INFO L236 CfgBuilder]: Building ICFG [2021-12-18 14:40:51,091 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-18 14:40:51,598 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-18 14:50:04,954 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-12-18 14:50:05,088 INFO L277 CfgBuilder]: Performing block encoding [2021-12-18 14:50:05,127 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-18 14:50:05,128 INFO L301 CfgBuilder]: Removed 6 assume(true) statements. [2021-12-18 14:50:05,137 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 02:50:05 BoogieIcfgContainer [2021-12-18 14:50:05,138 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-18 14:50:05,140 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-18 14:50:05,140 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-18 14:50:05,143 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-18 14:50:05,143 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.12 02:40:42" (1/3) ... [2021-12-18 14:50:05,144 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fe2e118 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 02:50:05, skipping insertion in model container [2021-12-18 14:50:05,144 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:40:48" (2/3) ... [2021-12-18 14:50:05,145 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fe2e118 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 02:50:05, skipping insertion in model container [2021-12-18 14:50:05,145 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 02:50:05" (3/3) ... [2021-12-18 14:50:05,146 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-nvidia-forcedeth.cil.i [2021-12-18 14:50:05,153 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-18 14:50:05,153 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-12-18 14:50:05,231 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-18 14:50:05,248 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-18 14:50:05,248 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-12-18 14:50:05,338 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) [2021-12-18 14:50:05,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2021-12-18 14:50:05,356 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 14:50:05,357 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] [2021-12-18 14:50:05,358 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] === [2021-12-18 14:50:05,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 14:50:05,362 INFO L85 PathProgramCache]: Analyzing trace with hash -1503809161, now seen corresponding path program 1 times [2021-12-18 14:50:05,367 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 14:50:05,367 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827796194] [2021-12-18 14:50:05,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 14:50:05,368 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 14:50:06,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:07,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 14:50:07,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:07,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:50:07,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:07,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 14:50:07,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:07,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:50:07,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:07,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 14:50:07,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:07,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:50:07,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:07,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 14:50:07,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:07,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:50:07,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:07,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 14:50:07,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:07,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:50:07,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:07,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 14:50:07,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:07,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:50:07,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:07,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 14:50:07,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:07,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:50:07,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:07,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 14:50:07,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:07,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:50:07,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:07,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 14:50:07,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:07,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:50:07,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:07,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 14:50:07,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:07,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:50:07,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:07,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 14:50:07,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:07,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:50:07,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:07,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 14:50:07,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:07,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:50:07,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:07,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 14:50:07,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:07,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:50:07,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:07,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-18 14:50:07,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:07,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:50:07,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:07,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-18 14:50:07,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:07,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:50:07,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:07,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-18 14:50:07,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:07,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:50:07,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:07,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-12-18 14:50:07,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:07,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:50:07,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:07,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-12-18 14:50:07,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:07,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:50:07,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:07,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-12-18 14:50:07,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:07,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:50:07,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:07,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2021-12-18 14:50:07,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:07,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:50:07,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:07,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-12-18 14:50:07,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:07,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:50:07,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:07,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2021-12-18 14:50:07,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:07,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:50:07,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:07,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2021-12-18 14:50:07,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:07,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:50:07,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:07,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2021-12-18 14:50:07,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:07,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:50:07,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:07,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2021-12-18 14:50:07,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:07,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2021-12-18 14:50:07,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:07,999 INFO L134 CoverageAnalysis]: Checked inductivity of 2556 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2556 trivial. 0 not checked. [2021-12-18 14:50:08,002 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 14:50:08,003 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1827796194] [2021-12-18 14:50:08,003 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1827796194] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 14:50:08,004 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 14:50:08,004 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-18 14:50:08,005 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628405825] [2021-12-18 14:50:08,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 14:50:08,011 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-18 14:50:08,011 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 14:50:08,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-18 14:50:08,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-18 14:50:08,057 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) [2021-12-18 14:50:10,245 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 14:50:12,591 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.34s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 14:50:49,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 14:50:49,284 INFO L93 Difference]: Finished difference Result 16176 states and 24211 transitions. [2021-12-18 14:50:49,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 14:50:49,286 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 [2021-12-18 14:50:49,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 14:50:49,398 INFO L225 Difference]: With dead ends: 16176 [2021-12-18 14:50:49,399 INFO L226 Difference]: Without dead ends: 11029 [2021-12-18 14:50:49,448 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 [2021-12-18 14:50:49,451 INFO L933 BasicCegarLoop]: 8241 mSDtfsCounter, 9774 mSDsluCounter, 8172 mSDsCounter, 0 mSdLazyCounter, 5775 mSolverCounterSat, 5464 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 36.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11414 SdHoareTripleChecker+Valid, 16413 SdHoareTripleChecker+Invalid, 11241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 5464 IncrementalHoareTripleChecker+Valid, 5775 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 39.7s IncrementalHoareTripleChecker+Time [2021-12-18 14:50:49,452 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11414 Valid, 16413 Invalid, 11241 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [5464 Valid, 5775 Invalid, 2 Unknown, 0 Unchecked, 39.7s Time] [2021-12-18 14:50:49,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11029 states. [2021-12-18 14:50:50,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11029 to 10153. [2021-12-18 14:50:50,085 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) [2021-12-18 14:50:50,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10153 states to 10153 states and 14865 transitions. [2021-12-18 14:50:50,163 INFO L78 Accepts]: Start accepts. Automaton has 10153 states and 14865 transitions. Word has length 291 [2021-12-18 14:50:50,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 14:50:50,166 INFO L470 AbstractCegarLoop]: Abstraction has 10153 states and 14865 transitions. [2021-12-18 14:50:50,167 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) [2021-12-18 14:50:50,168 INFO L276 IsEmpty]: Start isEmpty. Operand 10153 states and 14865 transitions. [2021-12-18 14:50:50,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2021-12-18 14:50:50,182 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 14:50:50,183 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] [2021-12-18 14:50:50,183 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-18 14:50:50,185 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] === [2021-12-18 14:50:50,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 14:50:50,186 INFO L85 PathProgramCache]: Analyzing trace with hash 1384583049, now seen corresponding path program 1 times [2021-12-18 14:50:50,187 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 14:50:50,189 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693882476] [2021-12-18 14:50:50,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 14:50:50,189 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 14:50:50,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:51,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 14:50:51,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:51,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:50:51,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:51,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 14:50:51,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:51,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:50:51,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:51,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 14:50:51,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:51,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:50:51,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:51,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 14:50:51,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:51,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:50:51,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:51,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 14:50:51,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:51,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:50:51,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:51,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 14:50:51,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:51,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:50:51,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:51,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 14:50:51,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:51,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:50:51,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:51,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 14:50:51,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:51,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:50:51,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:51,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 14:50:51,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:51,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:50:51,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:51,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 14:50:51,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:51,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:50:51,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:51,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 14:50:51,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:51,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:50:51,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:51,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 14:50:51,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:51,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:50:51,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:51,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 14:50:51,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:51,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:50:51,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:51,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-18 14:50:51,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:51,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:50:51,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:51,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-18 14:50:51,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:51,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:50:51,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:51,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-18 14:50:51,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:51,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:50:51,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:51,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-12-18 14:50:51,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:51,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:50:51,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:51,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-12-18 14:50:51,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:51,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:50:51,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:51,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-12-18 14:50:51,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:51,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:50:51,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:51,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2021-12-18 14:50:51,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:51,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:50:51,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:51,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-12-18 14:50:51,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:51,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:50:51,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:51,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2021-12-18 14:50:51,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:51,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:50:51,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:51,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2021-12-18 14:50:51,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:51,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:50:51,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:51,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2021-12-18 14:50:51,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:51,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:50:51,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:51,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2021-12-18 14:50:51,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:51,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2021-12-18 14:50:51,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:51,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:50:51,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:51,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 14:50:51,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:51,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 14:50:51,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:51,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2021-12-18 14:50:51,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:51,948 INFO L134 CoverageAnalysis]: Checked inductivity of 2560 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2560 trivial. 0 not checked. [2021-12-18 14:50:51,948 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 14:50:51,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1693882476] [2021-12-18 14:50:51,949 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1693882476] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 14:50:51,949 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 14:50:51,949 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-18 14:50:51,949 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431877263] [2021-12-18 14:50:51,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 14:50:51,952 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-18 14:50:51,952 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 14:50:51,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-18 14:50:51,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-18 14:50:51,953 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) [2021-12-18 14:50:54,118 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 14:50:56,446 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.32s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 14:51:14,159 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 14:51:43,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 14:51:43,098 INFO L93 Difference]: Finished difference Result 26527 states and 39074 transitions. [2021-12-18 14:51:43,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 14:51:43,099 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 [2021-12-18 14:51:43,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 14:51:43,215 INFO L225 Difference]: With dead ends: 26527 [2021-12-18 14:51:43,215 INFO L226 Difference]: Without dead ends: 16427 [2021-12-18 14:51:43,272 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 [2021-12-18 14:51:43,273 INFO L933 BasicCegarLoop]: 8098 mSDtfsCounter, 9672 mSDsluCounter, 8107 mSDsCounter, 0 mSdLazyCounter, 5783 mSolverCounterSat, 5495 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 46.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11311 SdHoareTripleChecker+Valid, 16205 SdHoareTripleChecker+Invalid, 11281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 5495 IncrementalHoareTripleChecker+Valid, 5783 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 49.8s IncrementalHoareTripleChecker+Time [2021-12-18 14:51:43,273 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11311 Valid, 16205 Invalid, 11281 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [5495 Valid, 5783 Invalid, 3 Unknown, 0 Unchecked, 49.8s Time] [2021-12-18 14:51:43,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16427 states. [2021-12-18 14:51:43,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16427 to 15105. [2021-12-18 14:51:43,999 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) [2021-12-18 14:51:44,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15105 states to 15105 states and 22095 transitions. [2021-12-18 14:51:44,084 INFO L78 Accepts]: Start accepts. Automaton has 15105 states and 22095 transitions. Word has length 327 [2021-12-18 14:51:44,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 14:51:44,085 INFO L470 AbstractCegarLoop]: Abstraction has 15105 states and 22095 transitions. [2021-12-18 14:51:44,086 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) [2021-12-18 14:51:44,086 INFO L276 IsEmpty]: Start isEmpty. Operand 15105 states and 22095 transitions. [2021-12-18 14:51:44,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 336 [2021-12-18 14:51:44,098 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 14:51:44,098 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] [2021-12-18 14:51:44,099 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-18 14:51:44,099 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] === [2021-12-18 14:51:44,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 14:51:44,099 INFO L85 PathProgramCache]: Analyzing trace with hash -1324908439, now seen corresponding path program 1 times [2021-12-18 14:51:44,100 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 14:51:44,100 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482199020] [2021-12-18 14:51:44,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 14:51:44,100 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 14:51:44,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:51:45,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 14:51:45,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:51:45,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:51:45,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:51:45,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 14:51:45,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:51:45,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:51:45,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:51:45,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 14:51:45,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:51:45,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:51:45,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:51:45,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 14:51:45,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:51:45,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:51:45,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:51:45,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 14:51:45,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:51:45,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:51:45,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:51:45,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 14:51:45,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:51:45,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:51:45,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:51:45,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 14:51:45,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:51:45,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:51:45,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:51:45,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 14:51:45,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:51:45,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:51:45,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:51:45,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 14:51:45,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:51:45,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:51:45,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:51:45,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 14:51:45,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:51:45,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:51:45,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:51:45,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 14:51:45,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:51:45,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:51:45,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:51:45,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 14:51:45,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:51:45,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:51:45,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:51:45,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 14:51:45,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:51:45,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:51:45,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:51:45,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-18 14:51:45,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:51:45,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:51:45,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:51:45,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-18 14:51:45,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:51:45,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:51:45,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:51:45,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-18 14:51:45,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:51:45,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:51:45,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:51:45,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-12-18 14:51:45,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:51:45,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:51:45,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:51:45,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-12-18 14:51:45,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:51:45,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:51:45,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:51:45,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-12-18 14:51:45,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:51:45,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:51:45,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:51:45,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2021-12-18 14:51:45,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:51:45,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:51:45,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:51:45,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-12-18 14:51:45,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:51:45,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:51:45,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:51:45,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2021-12-18 14:51:45,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:51:45,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:51:45,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:51:45,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2021-12-18 14:51:45,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:51:45,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:51:45,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:51:45,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2021-12-18 14:51:45,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:51:45,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:51:45,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:51:45,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2021-12-18 14:51:45,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:51:45,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2021-12-18 14:51:45,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:51:45,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2021-12-18 14:51:45,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:51:45,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2021-12-18 14:51:45,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:51:45,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:51:45,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:51:45,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2021-12-18 14:51:45,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:51:45,730 INFO L134 CoverageAnalysis]: Checked inductivity of 2853 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2853 trivial. 0 not checked. [2021-12-18 14:51:45,730 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 14:51:45,730 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482199020] [2021-12-18 14:51:45,731 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [482199020] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 14:51:45,732 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 14:51:45,732 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-18 14:51:45,732 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485986834] [2021-12-18 14:51:45,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 14:51:45,733 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-18 14:51:45,733 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 14:51:45,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-18 14:51:45,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-18 14:51:45,734 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) [2021-12-18 14:51:47,861 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 14:51:50,209 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.34s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 14:52:30,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 14:52:30,629 INFO L93 Difference]: Finished difference Result 41109 states and 60469 transitions. [2021-12-18 14:52:30,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 14:52:30,630 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 [2021-12-18 14:52:30,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 14:52:30,786 INFO L225 Difference]: With dead ends: 41109 [2021-12-18 14:52:30,786 INFO L226 Difference]: Without dead ends: 26057 [2021-12-18 14:52:30,851 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 [2021-12-18 14:52:30,852 INFO L933 BasicCegarLoop]: 8081 mSDtfsCounter, 9137 mSDsluCounter, 8099 mSDsCounter, 0 mSdLazyCounter, 5710 mSolverCounterSat, 5372 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 40.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10679 SdHoareTripleChecker+Valid, 16180 SdHoareTripleChecker+Invalid, 11084 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5372 IncrementalHoareTripleChecker+Valid, 5710 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 43.4s IncrementalHoareTripleChecker+Time [2021-12-18 14:52:30,852 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10679 Valid, 16180 Invalid, 11084 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5372 Valid, 5710 Invalid, 2 Unknown, 0 Unchecked, 43.4s Time] [2021-12-18 14:52:30,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26057 states. [2021-12-18 14:52:31,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26057 to 23873. [2021-12-18 14:52:31,955 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) [2021-12-18 14:52:32,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23873 states to 23873 states and 34839 transitions. [2021-12-18 14:52:32,070 INFO L78 Accepts]: Start accepts. Automaton has 23873 states and 34839 transitions. Word has length 335 [2021-12-18 14:52:32,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 14:52:32,071 INFO L470 AbstractCegarLoop]: Abstraction has 23873 states and 34839 transitions. [2021-12-18 14:52:32,071 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) [2021-12-18 14:52:32,071 INFO L276 IsEmpty]: Start isEmpty. Operand 23873 states and 34839 transitions. [2021-12-18 14:52:32,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2021-12-18 14:52:32,084 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 14:52:32,084 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] [2021-12-18 14:52:32,084 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-18 14:52:32,085 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] === [2021-12-18 14:52:32,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 14:52:32,085 INFO L85 PathProgramCache]: Analyzing trace with hash 207863834, now seen corresponding path program 1 times [2021-12-18 14:52:32,085 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 14:52:32,086 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780264132] [2021-12-18 14:52:32,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 14:52:32,086 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 14:52:32,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:52:33,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 14:52:33,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:52:33,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:52:33,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:52:33,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 14:52:33,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:52:33,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:52:33,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:52:33,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 14:52:33,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:52:33,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:52:33,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:52:33,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 14:52:33,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:52:33,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:52:33,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:52:33,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 14:52:33,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:52:33,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:52:33,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:52:33,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 14:52:33,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:52:33,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:52:33,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:52:33,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 14:52:33,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:52:33,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:52:33,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:52:33,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 14:52:33,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:52:33,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:52:33,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:52:33,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 14:52:33,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:52:33,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:52:33,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:52:33,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 14:52:33,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:52:33,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:52:33,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:52:33,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 14:52:33,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:52:33,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:52:33,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:52:33,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 14:52:33,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:52:33,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:52:33,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:52:33,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 14:52:33,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:52:33,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:52:33,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:52:33,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-18 14:52:33,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:52:33,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:52:33,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:52:33,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-18 14:52:33,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:52:33,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:52:33,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:52:33,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-18 14:52:33,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:52:33,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:52:33,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:52:33,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-12-18 14:52:33,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:52:33,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:52:33,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:52:33,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-12-18 14:52:33,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:52:33,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:52:33,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:52:33,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-12-18 14:52:33,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:52:33,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:52:33,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:52:33,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2021-12-18 14:52:33,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:52:33,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:52:33,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:52:33,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-12-18 14:52:33,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:52:33,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:52:33,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:52:33,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2021-12-18 14:52:33,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:52:33,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:52:33,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:52:33,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2021-12-18 14:52:33,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:52:33,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:52:33,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:52:33,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2021-12-18 14:52:33,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:52:33,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:52:33,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:52:33,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2021-12-18 14:52:33,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:52:33,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2021-12-18 14:52:33,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:52:33,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2021-12-18 14:52:33,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:52:33,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2021-12-18 14:52:33,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:52:33,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2021-12-18 14:52:33,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:52:33,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:52:33,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:52:33,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2021-12-18 14:52:33,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:52:33,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 325 [2021-12-18 14:52:33,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:52:33,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 338 [2021-12-18 14:52:33,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:52:33,532 INFO L134 CoverageAnalysis]: Checked inductivity of 2824 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 2814 trivial. 0 not checked. [2021-12-18 14:52:33,532 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 14:52:33,532 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780264132] [2021-12-18 14:52:33,532 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1780264132] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 14:52:33,533 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 14:52:33,533 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-18 14:52:33,533 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063822642] [2021-12-18 14:52:33,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 14:52:33,534 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-18 14:52:33,534 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 14:52:33,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-18 14:52:33,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-18 14:52:33,535 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) [2021-12-18 14:52:35,702 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 14:52:38,042 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.34s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 14:52:47,295 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 14:53:22,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 14:53:22,044 INFO L93 Difference]: Finished difference Result 66179 states and 97300 transitions. [2021-12-18 14:53:22,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 14:53:22,045 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 [2021-12-18 14:53:22,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 14:53:22,429 INFO L225 Difference]: With dead ends: 66179 [2021-12-18 14:53:22,429 INFO L226 Difference]: Without dead ends: 46864 [2021-12-18 14:53:22,571 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 [2021-12-18 14:53:22,574 INFO L933 BasicCegarLoop]: 13468 mSDtfsCounter, 7694 mSDsluCounter, 10257 mSDsCounter, 0 mSdLazyCounter, 5809 mSolverCounterSat, 3901 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 43.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9330 SdHoareTripleChecker+Valid, 23725 SdHoareTripleChecker+Invalid, 9713 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 3901 IncrementalHoareTripleChecker+Valid, 5809 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 46.6s IncrementalHoareTripleChecker+Time [2021-12-18 14:53:22,575 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9330 Valid, 23725 Invalid, 9713 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [3901 Valid, 5809 Invalid, 3 Unknown, 0 Unchecked, 46.6s Time] [2021-12-18 14:53:22,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46864 states. [2021-12-18 14:53:24,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46864 to 42949. [2021-12-18 14:53:24,820 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) [2021-12-18 14:53:25,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42949 states to 42949 states and 62699 transitions. [2021-12-18 14:53:25,063 INFO L78 Accepts]: Start accepts. Automaton has 42949 states and 62699 transitions. Word has length 347 [2021-12-18 14:53:25,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 14:53:25,064 INFO L470 AbstractCegarLoop]: Abstraction has 42949 states and 62699 transitions. [2021-12-18 14:53:25,064 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) [2021-12-18 14:53:25,064 INFO L276 IsEmpty]: Start isEmpty. Operand 42949 states and 62699 transitions. [2021-12-18 14:53:25,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2021-12-18 14:53:25,078 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 14:53:25,078 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] [2021-12-18 14:53:25,079 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-18 14:53:25,079 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] === [2021-12-18 14:53:25,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 14:53:25,079 INFO L85 PathProgramCache]: Analyzing trace with hash 73850328, now seen corresponding path program 1 times [2021-12-18 14:53:25,080 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 14:53:25,080 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625966471] [2021-12-18 14:53:25,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 14:53:25,080 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 14:53:25,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:53:26,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 14:53:26,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:53:26,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:53:26,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:53:26,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 14:53:26,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:53:26,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:53:26,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:53:26,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 14:53:26,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:53:26,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:53:26,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:53:26,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 14:53:26,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:53:26,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:53:26,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:53:26,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 14:53:26,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:53:26,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:53:26,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:53:26,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 14:53:26,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:53:26,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:53:26,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:53:26,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 14:53:26,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:53:26,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:53:26,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:53:26,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 14:53:26,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:53:26,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:53:26,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:53:26,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 14:53:26,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:53:26,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:53:26,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:53:26,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 14:53:26,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:53:26,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:53:26,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:53:26,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 14:53:26,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:53:26,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:53:26,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:53:26,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 14:53:26,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:53:26,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:53:26,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:53:26,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 14:53:26,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:53:26,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:53:26,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:53:26,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-18 14:53:26,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:53:26,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:53:26,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:53:26,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-18 14:53:26,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:53:26,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:53:26,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:53:26,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-18 14:53:26,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:53:26,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:53:26,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:53:26,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-12-18 14:53:26,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:53:26,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:53:26,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:53:26,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-12-18 14:53:26,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:53:26,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:53:26,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:53:26,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-12-18 14:53:26,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:53:26,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:53:26,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:53:26,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2021-12-18 14:53:26,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:53:26,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:53:26,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:53:26,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-12-18 14:53:26,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:53:26,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:53:26,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:53:26,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2021-12-18 14:53:26,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:53:26,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:53:26,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:53:26,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2021-12-18 14:53:26,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:53:26,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:53:26,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:53:26,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2021-12-18 14:53:26,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:53:26,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:53:26,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:53:26,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2021-12-18 14:53:26,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:53:26,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2021-12-18 14:53:26,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:53:26,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2021-12-18 14:53:26,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:53:26,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2021-12-18 14:53:26,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:53:26,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2021-12-18 14:53:26,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:53:26,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:53:26,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:53:26,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2021-12-18 14:53:26,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:53:26,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 325 [2021-12-18 14:53:26,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:53:26,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 338 [2021-12-18 14:53:26,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:53:27,040 INFO L134 CoverageAnalysis]: Checked inductivity of 2824 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2824 trivial. 0 not checked. [2021-12-18 14:53:27,040 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 14:53:27,040 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1625966471] [2021-12-18 14:53:27,041 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1625966471] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 14:53:27,041 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 14:53:27,041 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 14:53:27,041 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113866866] [2021-12-18 14:53:27,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 14:53:27,042 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 14:53:27,042 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 14:53:27,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 14:53:27,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-18 14:53:27,042 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) [2021-12-18 14:53:29,203 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 14:53:53,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 14:53:53,804 INFO L93 Difference]: Finished difference Result 46862 states and 69084 transitions. [2021-12-18 14:53:53,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 14:53:53,806 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 [2021-12-18 14:53:53,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 14:53:54,118 INFO L225 Difference]: With dead ends: 46862 [2021-12-18 14:53:54,118 INFO L226 Difference]: Without dead ends: 46807 [2021-12-18 14:53:54,167 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 [2021-12-18 14:53:54,169 INFO L933 BasicCegarLoop]: 7068 mSDtfsCounter, 7714 mSDsluCounter, 8129 mSDsCounter, 0 mSdLazyCounter, 4061 mSolverCounterSat, 3778 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8682 SdHoareTripleChecker+Valid, 15197 SdHoareTripleChecker+Invalid, 7840 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3778 IncrementalHoareTripleChecker+Valid, 4061 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.3s IncrementalHoareTripleChecker+Time [2021-12-18 14:53:54,170 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8682 Valid, 15197 Invalid, 7840 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3778 Valid, 4061 Invalid, 1 Unknown, 0 Unchecked, 25.3s Time] [2021-12-18 14:53:54,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46807 states. [2021-12-18 14:53:55,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46807 to 42894. [2021-12-18 14:53:55,959 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) [2021-12-18 14:53:56,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42894 states to 42894 states and 62611 transitions. [2021-12-18 14:53:56,218 INFO L78 Accepts]: Start accepts. Automaton has 42894 states and 62611 transitions. Word has length 347 [2021-12-18 14:53:56,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 14:53:56,221 INFO L470 AbstractCegarLoop]: Abstraction has 42894 states and 62611 transitions. [2021-12-18 14:53:56,221 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) [2021-12-18 14:53:56,221 INFO L276 IsEmpty]: Start isEmpty. Operand 42894 states and 62611 transitions. [2021-12-18 14:53:56,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 404 [2021-12-18 14:53:56,273 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 14:53:56,273 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] [2021-12-18 14:53:56,274 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-18 14:53:56,274 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] === [2021-12-18 14:53:56,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 14:53:56,275 INFO L85 PathProgramCache]: Analyzing trace with hash -1772605552, now seen corresponding path program 1 times [2021-12-18 14:53:56,275 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 14:53:56,275 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [810756731] [2021-12-18 14:53:56,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 14:53:56,275 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 14:53:57,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:53:57,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 14:53:57,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:53:57,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:53:57,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:53:57,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 14:53:57,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:53:57,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:53:57,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:53:58,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 14:53:58,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:53:58,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:53:58,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:53:58,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 14:53:58,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:53:58,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:53:58,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:53:58,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 14:53:58,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:53:58,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:53:58,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:53:58,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 14:53:58,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:53:58,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:53:58,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:53:58,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 14:53:58,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:53:58,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:53:58,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:53:58,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 14:53:58,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:53:58,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:53:58,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:53:58,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 14:53:58,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:53:58,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:53:58,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:53:58,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 14:53:58,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:53:58,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:53:58,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:53:58,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 14:53:58,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:53:58,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:53:58,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:53:58,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 14:53:58,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:53:58,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:53:58,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:53:58,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 14:53:58,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:53:58,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:53:58,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:53:58,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-18 14:53:58,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:53:58,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:53:58,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:53:58,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-18 14:53:58,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:53:58,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:53:58,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:53:58,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-18 14:53:58,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:53:58,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:53:58,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:53:58,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-12-18 14:53:58,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:53:58,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:53:58,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:53:58,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-12-18 14:53:58,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:53:58,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:53:58,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:53:58,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-12-18 14:53:58,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:53:58,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:53:58,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:53:58,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2021-12-18 14:53:58,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:53:58,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:53:58,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:53:58,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-12-18 14:53:58,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:53:58,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:53:58,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:53:58,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2021-12-18 14:53:58,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:53:58,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:53:58,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:53:58,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2021-12-18 14:53:58,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:53:58,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:53:58,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:53:58,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2021-12-18 14:53:58,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:53:58,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:53:58,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:53:58,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2021-12-18 14:53:58,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:53:58,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2021-12-18 14:53:58,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:53:58,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2021-12-18 14:53:58,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:53:58,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2021-12-18 14:53:58,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:53:58,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2021-12-18 14:53:58,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:53:58,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:53:58,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:53:58,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2021-12-18 14:53:58,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:53:58,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 325 [2021-12-18 14:53:58,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:53:58,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2021-12-18 14:53:58,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:53:58,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 345 [2021-12-18 14:53:58,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:53:58,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 371 [2021-12-18 14:53:58,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:53:58,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:53:58,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:53:58,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 14:53:58,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:53:58,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 14:53:58,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:53:58,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 392 [2021-12-18 14:53:58,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:53:58,460 INFO L134 CoverageAnalysis]: Checked inductivity of 2949 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 2934 trivial. 0 not checked. [2021-12-18 14:53:58,460 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 14:53:58,460 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [810756731] [2021-12-18 14:53:58,460 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [810756731] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 14:53:58,460 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 14:53:58,460 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-18 14:53:58,461 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130710682] [2021-12-18 14:53:58,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 14:53:58,462 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-18 14:53:58,462 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 14:53:58,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-18 14:53:58,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-18 14:53:58,463 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) [2021-12-18 14:54:00,637 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 14:54:02,979 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.34s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] Killed by 15