./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-3com-3c59x.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-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-3com-3c59x.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 079fce486bad33abab391a672044e04aae9233622e9697c4aac88598201cd13f --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-16 04:54:45,536 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-16 04:54:45,538 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-16 04:54:45,571 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-16 04:54:45,571 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-16 04:54:45,574 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-16 04:54:45,575 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-16 04:54:45,578 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-16 04:54:45,580 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-16 04:54:45,581 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-16 04:54:45,582 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-16 04:54:45,582 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-16 04:54:45,584 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-16 04:54:45,586 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-16 04:54:45,587 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-16 04:54:45,588 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-16 04:54:45,591 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-16 04:54:45,595 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-16 04:54:45,596 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-16 04:54:45,597 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-16 04:54:45,598 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-16 04:54:45,599 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-16 04:54:45,600 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-16 04:54:45,600 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-16 04:54:45,602 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-16 04:54:45,602 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-16 04:54:45,602 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-16 04:54:45,603 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-16 04:54:45,603 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-16 04:54:45,604 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-16 04:54:45,604 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-16 04:54:45,605 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-16 04:54:45,606 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-16 04:54:45,606 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-16 04:54:45,607 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-16 04:54:45,607 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-16 04:54:45,608 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-16 04:54:45,608 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-16 04:54:45,608 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-16 04:54:45,609 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-16 04:54:45,609 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-16 04:54:45,610 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-16 04:54:45,626 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-16 04:54:45,628 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-16 04:54:45,629 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-16 04:54:45,629 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-16 04:54:45,630 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-16 04:54:45,630 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-16 04:54:45,630 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-16 04:54:45,631 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-16 04:54:45,631 INFO L138 SettingsManager]: * Use SBE=true [2021-12-16 04:54:45,631 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-16 04:54:45,632 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-16 04:54:45,632 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-16 04:54:45,632 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-16 04:54:45,632 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-16 04:54:45,633 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-16 04:54:45,633 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-16 04:54:45,633 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-16 04:54:45,633 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-16 04:54:45,633 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-16 04:54:45,633 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-16 04:54:45,634 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-16 04:54:45,634 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-16 04:54:45,634 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-16 04:54:45,634 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-16 04:54:45,634 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-16 04:54:45,634 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-16 04:54:45,635 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-16 04:54:45,635 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-16 04:54:45,635 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-16 04:54:45,635 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-16 04:54:45,635 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-16 04:54:45,635 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 079fce486bad33abab391a672044e04aae9233622e9697c4aac88598201cd13f [2021-12-16 04:54:45,809 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-16 04:54:45,826 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-16 04:54:45,827 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-16 04:54:45,828 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-16 04:54:45,830 INFO L275 PluginConnector]: CDTParser initialized [2021-12-16 04:54:45,830 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-3com-3c59x.cil.i [2021-12-16 04:54:45,867 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4e33da126/2198606c982e4d56b0bab49df54b15f1/FLAG90f6fcda4 [2021-12-16 04:54:46,593 INFO L306 CDTParser]: Found 1 translation units. [2021-12-16 04:54:46,594 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-3com-3c59x.cil.i [2021-12-16 04:54:46,636 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4e33da126/2198606c982e4d56b0bab49df54b15f1/FLAG90f6fcda4 [2021-12-16 04:54:46,903 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4e33da126/2198606c982e4d56b0bab49df54b15f1 [2021-12-16 04:54:46,905 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-16 04:54:46,906 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-16 04:54:46,907 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-16 04:54:46,907 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-16 04:54:46,909 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-16 04:54:46,909 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 04:54:46" (1/1) ... [2021-12-16 04:54:46,911 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40a33f37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:54:46, skipping insertion in model container [2021-12-16 04:54:46,911 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 04:54:46" (1/1) ... [2021-12-16 04:54:46,915 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-16 04:54:47,046 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-16 04:54:49,318 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-3com-3c59x.cil.i[423587,423600] [2021-12-16 04:54:49,320 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-3com-3c59x.cil.i[423734,423747] [2021-12-16 04:54:49,321 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-3com-3c59x.cil.i[423873,423886] [2021-12-16 04:54:49,321 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-3com-3c59x.cil.i[424031,424044] [2021-12-16 04:54:49,342 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 04:54:49,394 INFO L203 MainTranslator]: Completed pre-run [2021-12-16 04:54:49,730 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-3com-3c59x.cil.i[423587,423600] [2021-12-16 04:54:49,731 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-3com-3c59x.cil.i[423734,423747] [2021-12-16 04:54:49,731 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-3com-3c59x.cil.i[423873,423886] [2021-12-16 04:54:49,732 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-3com-3c59x.cil.i[424031,424044] [2021-12-16 04:54:49,738 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 04:54:49,915 INFO L208 MainTranslator]: Completed translation [2021-12-16 04:54:49,916 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:54:49 WrapperNode [2021-12-16 04:54:49,916 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-16 04:54:49,917 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-16 04:54:49,917 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-16 04:54:49,917 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-16 04:54:49,921 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:54:49" (1/1) ... [2021-12-16 04:54:50,013 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:54:49" (1/1) ... [2021-12-16 04:54:50,240 INFO L137 Inliner]: procedures = 447, calls = 4152, calls flagged for inlining = 247, calls inlined = 238, statements flattened = 8864 [2021-12-16 04:54:50,241 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-16 04:54:50,243 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-16 04:54:50,243 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-16 04:54:50,243 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-16 04:54:50,250 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:54:49" (1/1) ... [2021-12-16 04:54:50,250 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:54:49" (1/1) ... [2021-12-16 04:54:50,297 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:54:49" (1/1) ... [2021-12-16 04:54:50,297 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:54:49" (1/1) ... [2021-12-16 04:54:50,399 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:54:49" (1/1) ... [2021-12-16 04:54:50,426 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:54:49" (1/1) ... [2021-12-16 04:54:50,457 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:54:49" (1/1) ... [2021-12-16 04:54:50,490 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-16 04:54:50,491 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-16 04:54:50,491 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-16 04:54:50,493 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-16 04:54:50,494 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:54:49" (1/1) ... [2021-12-16 04:54:50,499 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-16 04:54:50,508 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 04:54:50,518 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) [2021-12-16 04:54:50,535 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 [2021-12-16 04:54:50,558 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-12-16 04:54:50,558 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-12-16 04:54:50,558 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-16 04:54:50,559 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-16 04:54:50,559 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2021-12-16 04:54:50,559 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2021-12-16 04:54:50,559 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_present [2021-12-16 04:54:50,559 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_present [2021-12-16 04:54:50,559 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_nway_reset [2021-12-16 04:54:50,559 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_nway_reset [2021-12-16 04:54:50,559 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-12-16 04:54:50,559 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-12-16 04:54:50,559 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-16 04:54:50,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-16 04:54:50,559 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-12-16 04:54:50,559 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-12-16 04:54:50,559 INFO L130 BoogieDeclarations]: Found specification of procedure set_8021q_mode [2021-12-16 04:54:50,559 INFO L138 BoogieDeclarations]: Found implementation of procedure set_8021q_mode [2021-12-16 04:54:50,559 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_remove_one [2021-12-16 04:54:50,560 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_remove_one [2021-12-16 04:54:50,560 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_restore [2021-12-16 04:54:50,560 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_restore [2021-12-16 04:54:50,560 INFO L130 BoogieDeclarations]: Found specification of procedure issue_and_wait [2021-12-16 04:54:50,560 INFO L138 BoogieDeclarations]: Found implementation of procedure issue_and_wait [2021-12-16 04:54:50,560 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-12-16 04:54:50,560 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-12-16 04:54:50,560 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite16 [2021-12-16 04:54:50,560 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite16 [2021-12-16 04:54:50,560 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite8 [2021-12-16 04:54:50,560 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite8 [2021-12-16 04:54:50,560 INFO L130 BoogieDeclarations]: Found specification of procedure window_write32 [2021-12-16 04:54:50,560 INFO L138 BoogieDeclarations]: Found implementation of procedure window_write32 [2021-12-16 04:54:50,560 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2021-12-16 04:54:50,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2021-12-16 04:54:50,561 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2021-12-16 04:54:50,561 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2021-12-16 04:54:50,561 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-16 04:54:50,561 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-16 04:54:50,561 INFO L130 BoogieDeclarations]: Found specification of procedure window_set [2021-12-16 04:54:50,561 INFO L138 BoogieDeclarations]: Found implementation of procedure window_set [2021-12-16 04:54:50,561 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-12-16 04:54:50,561 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-12-16 04:54:50,561 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-12-16 04:54:50,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-12-16 04:54:50,561 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-12-16 04:54:50,561 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-12-16 04:54:50,561 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2021-12-16 04:54:50,561 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2021-12-16 04:54:50,561 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2021-12-16 04:54:50,562 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2021-12-16 04:54:50,562 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2021-12-16 04:54:50,562 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2021-12-16 04:54:50,562 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-12-16 04:54:50,562 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-12-16 04:54:50,562 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-12-16 04:54:50,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-12-16 04:54:50,562 INFO L130 BoogieDeclarations]: Found specification of procedure arch_irqs_disabled_flags [2021-12-16 04:54:50,562 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_irqs_disabled_flags [2021-12-16 04:54:50,562 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-16 04:54:50,562 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-16 04:54:50,562 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-12-16 04:54:50,562 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-12-16 04:54:50,562 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-16 04:54:50,562 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tx_timestamp [2021-12-16 04:54:50,562 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tx_timestamp [2021-12-16 04:54:50,563 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync [2021-12-16 04:54:50,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync [2021-12-16 04:54:50,563 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-12-16 04:54:50,563 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-12-16 04:54:50,563 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-12-16 04:54:50,563 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-12-16 04:54:50,563 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2021-12-16 04:54:50,563 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2021-12-16 04:54:50,563 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-16 04:54:50,563 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_tx_timeout [2021-12-16 04:54:50,563 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_tx_timeout [2021-12-16 04:54:50,563 INFO L130 BoogieDeclarations]: Found specification of procedure pci_save_state [2021-12-16 04:54:50,563 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_save_state [2021-12-16 04:54:50,563 INFO L130 BoogieDeclarations]: Found specification of procedure ioport_map [2021-12-16 04:54:50,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ioport_map [2021-12-16 04:54:50,564 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-12-16 04:54:50,564 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-12-16 04:54:50,564 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2021-12-16 04:54:50,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2021-12-16 04:54:50,564 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-12-16 04:54:50,564 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-12-16 04:54:50,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-16 04:54:50,564 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-12-16 04:54:50,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-12-16 04:54:50,564 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-16 04:54:50,564 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_interrupt [2021-12-16 04:54:50,564 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_interrupt [2021-12-16 04:54:50,564 INFO L130 BoogieDeclarations]: Found specification of procedure set_rx_mode [2021-12-16 04:54:50,564 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rx_mode [2021-12-16 04:54:50,564 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-12-16 04:54:50,564 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-12-16 04:54:50,565 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-16 04:54:50,565 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-16 04:54:50,565 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-12-16 04:54:50,565 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-12-16 04:54:50,565 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-12-16 04:54:50,565 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-12-16 04:54:50,565 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-12-16 04:54:50,565 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-12-16 04:54:50,565 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_set_duplex [2021-12-16 04:54:50,565 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_set_duplex [2021-12-16 04:54:50,565 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iomap [2021-12-16 04:54:50,565 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iomap [2021-12-16 04:54:50,565 INFO L130 BoogieDeclarations]: Found specification of procedure __netdev_alloc_skb [2021-12-16 04:54:50,565 INFO L138 BoogieDeclarations]: Found implementation of procedure __netdev_alloc_skb [2021-12-16 04:54:50,565 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-12-16 04:54:50,565 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-12-16 04:54:50,566 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_error [2021-12-16 04:54:50,566 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_error [2021-12-16 04:54:50,566 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-12-16 04:54:50,567 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-12-16 04:54:50,567 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_close [2021-12-16 04:54:50,567 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_close [2021-12-16 04:54:50,567 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-16 04:54:50,567 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-12-16 04:54:50,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-12-16 04:54:50,568 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_save [2021-12-16 04:54:50,568 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_save [2021-12-16 04:54:50,568 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-12-16 04:54:50,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-12-16 04:54:50,568 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2021-12-16 04:54:50,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2021-12-16 04:54:50,568 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_4 [2021-12-16 04:54:50,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_4 [2021-12-16 04:54:50,569 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2021-12-16 04:54:50,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2021-12-16 04:54:50,569 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-16 04:54:50,569 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-12-16 04:54:50,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-12-16 04:54:50,569 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-12-16 04:54:50,569 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-12-16 04:54:50,570 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-16 04:54:50,570 INFO L130 BoogieDeclarations]: Found specification of procedure ioread16 [2021-12-16 04:54:50,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread16 [2021-12-16 04:54:50,570 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-16 04:54:50,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-16 04:54:50,570 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2021-12-16 04:54:50,570 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2021-12-16 04:54:50,570 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-12-16 04:54:50,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-12-16 04:54:50,571 INFO L130 BoogieDeclarations]: Found specification of procedure acpi_set_WOL [2021-12-16 04:54:50,571 INFO L138 BoogieDeclarations]: Found implementation of procedure acpi_set_WOL [2021-12-16 04:54:50,571 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-12-16 04:54:50,571 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-12-16 04:54:50,571 INFO L130 BoogieDeclarations]: Found specification of procedure window_write16 [2021-12-16 04:54:50,571 INFO L138 BoogieDeclarations]: Found implementation of procedure window_write16 [2021-12-16 04:54:50,572 INFO L130 BoogieDeclarations]: Found specification of procedure ioread8 [2021-12-16 04:54:50,572 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread8 [2021-12-16 04:54:50,572 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-12-16 04:54:50,572 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-12-16 04:54:50,572 INFO L130 BoogieDeclarations]: Found specification of procedure window_read8 [2021-12-16 04:54:50,572 INFO L138 BoogieDeclarations]: Found implementation of procedure window_read8 [2021-12-16 04:54:50,572 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_vortex_cleanup_16_2 [2021-12-16 04:54:50,572 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_vortex_cleanup_16_2 [2021-12-16 04:54:50,573 INFO L130 BoogieDeclarations]: Found specification of procedure update_stats [2021-12-16 04:54:50,573 INFO L138 BoogieDeclarations]: Found implementation of procedure update_stats [2021-12-16 04:54:50,573 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-16 04:54:50,573 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-16 04:54:50,573 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-12-16 04:54:50,573 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-12-16 04:54:50,573 INFO L130 BoogieDeclarations]: Found specification of procedure poll_vortex [2021-12-16 04:54:50,573 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_vortex [2021-12-16 04:54:50,573 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-12-16 04:54:50,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-12-16 04:54:50,574 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_check_media [2021-12-16 04:54:50,574 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_check_media [2021-12-16 04:54:50,574 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2021-12-16 04:54:50,574 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2021-12-16 04:54:50,574 INFO L130 BoogieDeclarations]: Found specification of procedure boomerang_rx [2021-12-16 04:54:50,574 INFO L138 BoogieDeclarations]: Found implementation of procedure boomerang_rx [2021-12-16 04:54:50,574 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_save_flags [2021-12-16 04:54:50,575 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_save_flags [2021-12-16 04:54:50,575 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_open [2021-12-16 04:54:50,575 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_open [2021-12-16 04:54:50,575 INFO L130 BoogieDeclarations]: Found specification of procedure dump_tx_ring [2021-12-16 04:54:50,575 INFO L138 BoogieDeclarations]: Found implementation of procedure dump_tx_ring [2021-12-16 04:54:50,575 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2021-12-16 04:54:50,575 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2021-12-16 04:54:50,575 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-16 04:54:50,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-16 04:54:50,576 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2021-12-16 04:54:50,576 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2021-12-16 04:54:50,576 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_probe1 [2021-12-16 04:54:50,576 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_probe1 [2021-12-16 04:54:50,576 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-16 04:54:50,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-16 04:54:50,576 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-16 04:54:50,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-16 04:54:50,577 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-12-16 04:54:50,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-12-16 04:54:50,577 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_on [2021-12-16 04:54:50,577 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_on [2021-12-16 04:54:50,577 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-12-16 04:54:50,577 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-12-16 04:54:50,577 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-12-16 04:54:50,577 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-12-16 04:54:50,578 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2021-12-16 04:54:50,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2021-12-16 04:54:50,578 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-12-16 04:54:50,578 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-12-16 04:54:50,578 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2021-12-16 04:54:50,578 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2021-12-16 04:54:50,578 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-16 04:54:50,578 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_off [2021-12-16 04:54:50,579 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_off [2021-12-16 04:54:50,579 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-12-16 04:54:50,579 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-12-16 04:54:50,579 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value_probe [2021-12-16 04:54:50,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value_probe [2021-12-16 04:54:50,579 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-16 04:54:50,579 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_suspend [2021-12-16 04:54:50,579 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_suspend [2021-12-16 04:54:50,579 INFO L130 BoogieDeclarations]: Found specification of procedure boomerang_interrupt [2021-12-16 04:54:50,580 INFO L138 BoogieDeclarations]: Found implementation of procedure boomerang_interrupt [2021-12-16 04:54:50,580 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-16 04:54:50,580 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-12-16 04:54:50,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-12-16 04:54:50,580 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2021-12-16 04:54:50,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2021-12-16 04:54:50,580 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-12-16 04:54:50,580 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-12-16 04:54:50,581 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-12-16 04:54:50,581 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-12-16 04:54:50,581 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-12-16 04:54:50,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-12-16 04:54:50,581 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2021-12-16 04:54:50,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2021-12-16 04:54:50,581 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2021-12-16 04:54:50,581 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2021-12-16 04:54:50,581 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_sync [2021-12-16 04:54:50,582 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_sync [2021-12-16 04:54:50,582 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_resume [2021-12-16 04:54:50,582 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_resume [2021-12-16 04:54:50,582 INFO L130 BoogieDeclarations]: Found specification of procedure pci_restore_state [2021-12-16 04:54:50,582 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_restore_state [2021-12-16 04:54:50,582 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2021-12-16 04:54:50,582 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2021-12-16 04:54:50,582 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_rx [2021-12-16 04:54:50,583 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_rx [2021-12-16 04:54:50,583 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-12-16 04:54:50,583 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-12-16 04:54:50,583 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-12-16 04:54:50,583 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-12-16 04:54:50,583 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2021-12-16 04:54:50,583 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2021-12-16 04:54:50,583 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-12-16 04:54:50,584 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-12-16 04:54:50,584 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_delay [2021-12-16 04:54:50,584 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_delay [2021-12-16 04:54:50,584 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-16 04:54:50,584 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_down [2021-12-16 04:54:50,584 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_down [2021-12-16 04:54:50,584 INFO L130 BoogieDeclarations]: Found specification of procedure eth_type_trans [2021-12-16 04:54:50,584 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_type_trans [2021-12-16 04:54:50,584 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2021-12-16 04:54:50,585 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2021-12-16 04:54:50,585 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-16 04:54:50,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-16 04:54:50,585 INFO L130 BoogieDeclarations]: Found specification of procedure window_write8 [2021-12-16 04:54:50,585 INFO L138 BoogieDeclarations]: Found implementation of procedure window_write8 [2021-12-16 04:54:50,585 INFO L130 BoogieDeclarations]: Found specification of procedure window_read32 [2021-12-16 04:54:50,585 INFO L138 BoogieDeclarations]: Found implementation of procedure window_read32 [2021-12-16 04:54:50,585 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~$Pointer$~TO~int [2021-12-16 04:54:50,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~$Pointer$~TO~int [2021-12-16 04:54:50,586 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32_rep [2021-12-16 04:54:50,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32_rep [2021-12-16 04:54:50,586 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2021-12-16 04:54:50,586 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2021-12-16 04:54:50,586 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_up [2021-12-16 04:54:50,587 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_up [2021-12-16 04:54:50,587 INFO L130 BoogieDeclarations]: Found specification of procedure window_read16 [2021-12-16 04:54:50,587 INFO L138 BoogieDeclarations]: Found implementation of procedure window_read16 [2021-12-16 04:54:50,587 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-12-16 04:54:50,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-12-16 04:54:50,587 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2021-12-16 04:54:50,587 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2021-12-16 04:54:50,587 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2021-12-16 04:54:50,587 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2021-12-16 04:54:50,588 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-12-16 04:54:50,588 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-12-16 04:54:50,588 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-12-16 04:54:50,588 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-12-16 04:54:50,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-16 04:54:50,588 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-12-16 04:54:50,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-12-16 04:54:50,588 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2021-12-16 04:54:50,589 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2021-12-16 04:54:51,429 INFO L236 CfgBuilder]: Building ICFG [2021-12-16 04:54:51,434 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-16 04:54:52,355 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-16 04:54:55,413 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-12-16 04:54:55,464 INFO L277 CfgBuilder]: Performing block encoding [2021-12-16 04:54:55,481 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-16 04:54:55,482 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-16 04:54:55,485 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 04:54:55 BoogieIcfgContainer [2021-12-16 04:54:55,485 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-16 04:54:55,486 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-16 04:54:55,486 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-16 04:54:55,503 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-16 04:54:55,503 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 04:54:46" (1/3) ... [2021-12-16 04:54:55,504 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79b9a1f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 04:54:55, skipping insertion in model container [2021-12-16 04:54:55,504 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:54:49" (2/3) ... [2021-12-16 04:54:55,504 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79b9a1f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 04:54:55, skipping insertion in model container [2021-12-16 04:54:55,504 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 04:54:55" (3/3) ... [2021-12-16 04:54:55,505 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-3com-3c59x.cil.i [2021-12-16 04:54:55,509 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-16 04:54:55,509 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-12-16 04:54:55,575 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-16 04:54:55,580 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 [2021-12-16 04:54:55,580 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-12-16 04:54:55,636 INFO L276 IsEmpty]: Start isEmpty. Operand has 3025 states, 2127 states have (on average 1.3432063939821344) internal successors, (2857), 2197 states have internal predecessors, (2857), 759 states have call successors, (759), 138 states have call predecessors, (759), 137 states have return successors, (750), 735 states have call predecessors, (750), 750 states have call successors, (750) [2021-12-16 04:54:55,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2021-12-16 04:54:55,650 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 04:54:55,651 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 17, 17, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 04:54:55,651 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] === [2021-12-16 04:54:55,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 04:54:55,655 INFO L85 PathProgramCache]: Analyzing trace with hash 986609956, now seen corresponding path program 1 times [2021-12-16 04:54:55,661 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 04:54:55,662 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313595835] [2021-12-16 04:54:55,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 04:54:55,662 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 04:54:56,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:54:56,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-16 04:54:56,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:54:56,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:54:56,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:54:56,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 04:54:56,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:54:56,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:54:56,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:54:56,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-16 04:54:56,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:54:56,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:54:56,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:54:56,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-16 04:54:56,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:54:56,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:54:56,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:54:56,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-16 04:54:56,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:54:56,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:54:56,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:54:56,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-16 04:54:56,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:54:56,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:54:56,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:54:56,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-16 04:54:56,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:54:56,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:54:56,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:54:56,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-16 04:54:56,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:54:56,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:54:56,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:54:56,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-16 04:54:56,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:54:56,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:54:56,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:54:56,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-16 04:54:56,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:54:56,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:54:56,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:54:56,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-16 04:54:56,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:54:56,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:54:56,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:54:56,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-16 04:54:56,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:54:56,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:54:56,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:54:56,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-16 04:54:56,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:54:56,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:54:56,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:54:56,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-16 04:54:56,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:54:56,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:54:56,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:54:56,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-16 04:54:56,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:54:56,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:54:56,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:54:56,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-16 04:54:56,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:54:56,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:54:56,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:54:56,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-12-16 04:54:56,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:54:56,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:54:56,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:54:56,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-12-16 04:54:56,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:54:56,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-12-16 04:54:56,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:54:56,665 INFO L134 CoverageAnalysis]: Checked inductivity of 1275 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1275 trivial. 0 not checked. [2021-12-16 04:54:56,665 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 04:54:56,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313595835] [2021-12-16 04:54:56,666 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1313595835] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 04:54:56,666 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 04:54:56,666 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-16 04:54:56,667 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59212365] [2021-12-16 04:54:56,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 04:54:56,671 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-16 04:54:56,671 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 04:54:56,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-16 04:54:56,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-16 04:54:56,697 INFO L87 Difference]: Start difference. First operand has 3025 states, 2127 states have (on average 1.3432063939821344) internal successors, (2857), 2197 states have internal predecessors, (2857), 759 states have call successors, (759), 138 states have call predecessors, (759), 137 states have return successors, (750), 735 states have call predecessors, (750), 750 states have call successors, (750) Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2021-12-16 04:55:02,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 04:55:02,052 INFO L93 Difference]: Finished difference Result 8940 states and 13118 transitions. [2021-12-16 04:55:02,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-16 04:55:02,061 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 214 [2021-12-16 04:55:02,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 04:55:02,111 INFO L225 Difference]: With dead ends: 8940 [2021-12-16 04:55:02,111 INFO L226 Difference]: Without dead ends: 5940 [2021-12-16 04:55:02,135 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-16 04:55:02,138 INFO L933 BasicCegarLoop]: 4683 mSDtfsCounter, 4882 mSDsluCounter, 5524 mSDsCounter, 0 mSdLazyCounter, 2380 mSolverCounterSat, 2036 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5547 SdHoareTripleChecker+Valid, 10207 SdHoareTripleChecker+Invalid, 4416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2036 IncrementalHoareTripleChecker+Valid, 2380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2021-12-16 04:55:02,139 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5547 Valid, 10207 Invalid, 4416 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2036 Valid, 2380 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2021-12-16 04:55:02,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5940 states. [2021-12-16 04:55:02,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5940 to 5879. [2021-12-16 04:55:02,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5879 states, 4151 states have (on average 1.3389544688026982) internal successors, (5558), 4290 states have internal predecessors, (5558), 1455 states have call successors, (1455), 272 states have call predecessors, (1455), 271 states have return successors, (1452), 1422 states have call predecessors, (1452), 1452 states have call successors, (1452) [2021-12-16 04:55:02,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5879 states to 5879 states and 8465 transitions. [2021-12-16 04:55:02,480 INFO L78 Accepts]: Start accepts. Automaton has 5879 states and 8465 transitions. Word has length 214 [2021-12-16 04:55:02,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 04:55:02,481 INFO L470 AbstractCegarLoop]: Abstraction has 5879 states and 8465 transitions. [2021-12-16 04:55:02,482 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2021-12-16 04:55:02,482 INFO L276 IsEmpty]: Start isEmpty. Operand 5879 states and 8465 transitions. [2021-12-16 04:55:02,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2021-12-16 04:55:02,490 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 04:55:02,490 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 17, 17, 17, 17, 17, 17, 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] [2021-12-16 04:55:02,490 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-16 04:55:02,491 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] === [2021-12-16 04:55:02,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 04:55:02,491 INFO L85 PathProgramCache]: Analyzing trace with hash 100661317, now seen corresponding path program 1 times [2021-12-16 04:55:02,491 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 04:55:02,492 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150465993] [2021-12-16 04:55:02,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 04:55:02,492 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 04:55:02,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:02,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-16 04:55:02,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:02,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:55:02,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:02,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 04:55:02,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:02,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:55:02,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:02,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-16 04:55:02,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:02,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:55:02,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:02,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-16 04:55:02,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:02,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:55:02,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:02,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-16 04:55:02,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:02,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:55:02,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:02,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-16 04:55:02,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:02,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:55:02,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:02,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-16 04:55:02,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:02,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:55:02,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:02,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-16 04:55:02,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:02,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:55:02,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:02,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-16 04:55:02,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:02,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:55:02,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:02,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-16 04:55:02,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:02,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:55:02,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:02,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-16 04:55:02,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:02,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:55:02,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:02,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-16 04:55:02,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:02,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:55:02,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:02,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-16 04:55:02,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:02,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:55:02,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:02,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-16 04:55:02,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:02,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:55:02,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:02,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-16 04:55:02,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:02,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:55:02,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:02,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-16 04:55:02,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:02,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:55:02,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:02,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-12-16 04:55:02,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:02,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:55:02,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:02,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-12-16 04:55:02,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:02,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2021-12-16 04:55:03,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:03,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:55:03,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:03,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:55:03,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:03,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-16 04:55:03,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:03,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2021-12-16 04:55:03,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:03,035 INFO L134 CoverageAnalysis]: Checked inductivity of 1279 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1279 trivial. 0 not checked. [2021-12-16 04:55:03,035 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 04:55:03,036 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150465993] [2021-12-16 04:55:03,036 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [150465993] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 04:55:03,036 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 04:55:03,036 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-16 04:55:03,036 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589586049] [2021-12-16 04:55:03,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 04:55:03,038 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-16 04:55:03,038 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 04:55:03,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-16 04:55:03,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-16 04:55:03,039 INFO L87 Difference]: Start difference. First operand 5879 states and 8465 transitions. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2021-12-16 04:55:08,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 04:55:08,405 INFO L93 Difference]: Finished difference Result 15649 states and 22560 transitions. [2021-12-16 04:55:08,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-16 04:55:08,406 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 248 [2021-12-16 04:55:08,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 04:55:08,469 INFO L225 Difference]: With dead ends: 15649 [2021-12-16 04:55:08,470 INFO L226 Difference]: Without dead ends: 9809 [2021-12-16 04:55:08,496 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-16 04:55:08,499 INFO L933 BasicCegarLoop]: 4723 mSDtfsCounter, 4834 mSDsluCounter, 5575 mSDsCounter, 0 mSdLazyCounter, 2402 mSolverCounterSat, 2021 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5496 SdHoareTripleChecker+Valid, 10298 SdHoareTripleChecker+Invalid, 4423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2021 IncrementalHoareTripleChecker+Valid, 2402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2021-12-16 04:55:08,499 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5496 Valid, 10298 Invalid, 4423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2021 Valid, 2402 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2021-12-16 04:55:08,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9809 states. [2021-12-16 04:55:08,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9809 to 9691. [2021-12-16 04:55:08,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9691 states, 6843 states have (on average 1.336402162794096) internal successors, (9145), 7073 states have internal predecessors, (9145), 2371 states have call successors, (2371), 476 states have call predecessors, (2371), 475 states have return successors, (2368), 2314 states have call predecessors, (2368), 2368 states have call successors, (2368) [2021-12-16 04:55:08,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9691 states to 9691 states and 13884 transitions. [2021-12-16 04:55:08,933 INFO L78 Accepts]: Start accepts. Automaton has 9691 states and 13884 transitions. Word has length 248 [2021-12-16 04:55:08,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 04:55:08,934 INFO L470 AbstractCegarLoop]: Abstraction has 9691 states and 13884 transitions. [2021-12-16 04:55:08,934 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2021-12-16 04:55:08,934 INFO L276 IsEmpty]: Start isEmpty. Operand 9691 states and 13884 transitions. [2021-12-16 04:55:08,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2021-12-16 04:55:08,939 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 04:55:08,940 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 17, 17, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 04:55:08,940 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-16 04:55:08,940 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] === [2021-12-16 04:55:08,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 04:55:08,940 INFO L85 PathProgramCache]: Analyzing trace with hash -1503878482, now seen corresponding path program 1 times [2021-12-16 04:55:08,941 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 04:55:08,941 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966690010] [2021-12-16 04:55:08,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 04:55:08,941 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 04:55:09,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:09,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-16 04:55:09,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:09,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:55:09,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:09,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 04:55:09,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:09,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:55:09,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:09,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-16 04:55:09,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:09,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:55:09,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:09,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-16 04:55:09,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:09,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:55:09,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:09,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-16 04:55:09,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:09,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:55:09,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:09,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-16 04:55:09,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:09,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:55:09,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:09,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-16 04:55:09,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:09,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:55:09,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:09,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-16 04:55:09,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:09,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:55:09,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:09,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-16 04:55:09,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:09,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:55:09,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:09,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-16 04:55:09,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:09,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:55:09,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:09,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-16 04:55:09,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:09,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:55:09,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:09,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-16 04:55:09,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:09,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:55:09,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:09,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-16 04:55:09,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:09,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:55:09,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:09,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-16 04:55:09,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:09,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:55:09,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:09,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-16 04:55:09,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:09,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:55:09,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:09,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-16 04:55:09,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:09,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:55:09,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:09,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-12-16 04:55:09,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:09,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:55:09,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:09,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-12-16 04:55:09,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:09,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2021-12-16 04:55:09,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:09,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2021-12-16 04:55:09,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:09,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2021-12-16 04:55:09,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:09,442 INFO L134 CoverageAnalysis]: Checked inductivity of 1275 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1275 trivial. 0 not checked. [2021-12-16 04:55:09,442 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 04:55:09,442 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966690010] [2021-12-16 04:55:09,442 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1966690010] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 04:55:09,442 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 04:55:09,443 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-16 04:55:09,443 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350995051] [2021-12-16 04:55:09,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 04:55:09,444 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-16 04:55:09,444 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 04:55:09,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-16 04:55:09,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-16 04:55:09,446 INFO L87 Difference]: Start difference. First operand 9691 states and 13884 transitions. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 3 states have internal predecessors, (64), 3 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2021-12-16 04:55:14,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 04:55:14,057 INFO L93 Difference]: Finished difference Result 26324 states and 37723 transitions. [2021-12-16 04:55:14,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-16 04:55:14,058 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 3 states have internal predecessors, (64), 3 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 239 [2021-12-16 04:55:14,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 04:55:14,136 INFO L225 Difference]: With dead ends: 26324 [2021-12-16 04:55:14,136 INFO L226 Difference]: Without dead ends: 16672 [2021-12-16 04:55:14,193 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-16 04:55:14,198 INFO L933 BasicCegarLoop]: 5138 mSDtfsCounter, 4702 mSDsluCounter, 5876 mSDsCounter, 0 mSdLazyCounter, 2422 mSolverCounterSat, 1954 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5351 SdHoareTripleChecker+Valid, 11014 SdHoareTripleChecker+Invalid, 4376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1954 IncrementalHoareTripleChecker+Valid, 2422 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2021-12-16 04:55:14,200 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5351 Valid, 11014 Invalid, 4376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1954 Valid, 2422 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2021-12-16 04:55:14,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16672 states. [2021-12-16 04:55:14,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16672 to 16462. [2021-12-16 04:55:14,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16462 states, 11573 states have (on average 1.3289553270543506) internal successors, (15380), 11968 states have internal predecessors, (15380), 4027 states have call successors, (4027), 861 states have call predecessors, (4027), 860 states have return successors, (4028), 3922 states have call predecessors, (4028), 4024 states have call successors, (4028) [2021-12-16 04:55:14,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16462 states to 16462 states and 23435 transitions. [2021-12-16 04:55:14,812 INFO L78 Accepts]: Start accepts. Automaton has 16462 states and 23435 transitions. Word has length 239 [2021-12-16 04:55:14,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 04:55:14,813 INFO L470 AbstractCegarLoop]: Abstraction has 16462 states and 23435 transitions. [2021-12-16 04:55:14,814 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 3 states have internal predecessors, (64), 3 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2021-12-16 04:55:14,814 INFO L276 IsEmpty]: Start isEmpty. Operand 16462 states and 23435 transitions. [2021-12-16 04:55:14,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2021-12-16 04:55:14,829 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 04:55:14,829 INFO L514 BasicCegarLoop]: trace histogram [21, 21, 17, 17, 17, 17, 17, 17, 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] [2021-12-16 04:55:14,829 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-16 04:55:14,829 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] === [2021-12-16 04:55:14,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 04:55:14,830 INFO L85 PathProgramCache]: Analyzing trace with hash -1826034233, now seen corresponding path program 1 times [2021-12-16 04:55:14,830 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 04:55:14,830 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940287084] [2021-12-16 04:55:14,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 04:55:14,831 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 04:55:15,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:15,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-16 04:55:15,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:15,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:55:15,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:15,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 04:55:15,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:15,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:55:15,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:15,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-16 04:55:15,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:15,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:55:15,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:15,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-16 04:55:15,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:15,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:55:15,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:15,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-16 04:55:15,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:15,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:55:15,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:15,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-16 04:55:15,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:15,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:55:15,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:15,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-16 04:55:15,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:15,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:55:15,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:15,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-16 04:55:15,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:15,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:55:15,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:15,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-16 04:55:15,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:15,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:55:15,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:15,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-16 04:55:15,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:15,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:55:15,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:15,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-16 04:55:15,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:15,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:55:15,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:15,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-16 04:55:15,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:15,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:55:15,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:15,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-16 04:55:15,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:15,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:55:15,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:15,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-16 04:55:15,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:15,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:55:15,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:15,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-16 04:55:15,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:15,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:55:15,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:15,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-16 04:55:15,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:15,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:55:15,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:15,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-12-16 04:55:15,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:15,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:55:15,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:15,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-12-16 04:55:15,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:15,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-12-16 04:55:15,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:15,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-12-16 04:55:15,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:15,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2021-12-16 04:55:15,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:15,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2021-12-16 04:55:15,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:15,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:55:15,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:15,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2021-12-16 04:55:15,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:15,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2021-12-16 04:55:15,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:15,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2021-12-16 04:55:15,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:15,485 INFO L134 CoverageAnalysis]: Checked inductivity of 1480 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 1470 trivial. 0 not checked. [2021-12-16 04:55:15,485 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 04:55:15,485 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [940287084] [2021-12-16 04:55:15,485 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [940287084] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 04:55:15,486 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 04:55:15,486 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-16 04:55:15,486 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921521598] [2021-12-16 04:55:15,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 04:55:15,487 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-16 04:55:15,487 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 04:55:15,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-16 04:55:15,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-16 04:55:15,488 INFO L87 Difference]: Start difference. First operand 16462 states and 23435 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, (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) [2021-12-16 04:55:20,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 04:55:20,389 INFO L93 Difference]: Finished difference Result 41924 states and 59912 transitions. [2021-12-16 04:55:20,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-16 04:55:20,390 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, (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 277 [2021-12-16 04:55:20,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 04:55:20,539 INFO L225 Difference]: With dead ends: 41924 [2021-12-16 04:55:20,539 INFO L226 Difference]: Without dead ends: 27197 [2021-12-16 04:55:20,605 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-16 04:55:20,606 INFO L933 BasicCegarLoop]: 7956 mSDtfsCounter, 4100 mSDsluCounter, 7462 mSDsCounter, 0 mSdLazyCounter, 2406 mSolverCounterSat, 1333 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4759 SdHoareTripleChecker+Valid, 15418 SdHoareTripleChecker+Invalid, 3739 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1333 IncrementalHoareTripleChecker+Valid, 2406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2021-12-16 04:55:20,606 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4759 Valid, 15418 Invalid, 3739 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1333 Valid, 2406 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2021-12-16 04:55:20,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27197 states. [2021-12-16 04:55:21,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27197 to 26912. [2021-12-16 04:55:21,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26912 states, 18933 states have (on average 1.329636085142344) internal successors, (25174), 19584 states have internal predecessors, (25174), 6603 states have call successors, (6603), 1375 states have call predecessors, (6603), 1374 states have return successors, (6604), 6440 states have call predecessors, (6604), 6600 states have call successors, (6604) [2021-12-16 04:55:21,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26912 states to 26912 states and 38381 transitions. [2021-12-16 04:55:21,643 INFO L78 Accepts]: Start accepts. Automaton has 26912 states and 38381 transitions. Word has length 277 [2021-12-16 04:55:21,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 04:55:21,644 INFO L470 AbstractCegarLoop]: Abstraction has 26912 states and 38381 transitions. [2021-12-16 04:55:21,645 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, (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) [2021-12-16 04:55:21,645 INFO L276 IsEmpty]: Start isEmpty. Operand 26912 states and 38381 transitions. [2021-12-16 04:55:21,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2021-12-16 04:55:21,654 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 04:55:21,654 INFO L514 BasicCegarLoop]: trace histogram [21, 21, 17, 17, 17, 17, 17, 17, 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] [2021-12-16 04:55:21,655 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-16 04:55:21,655 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] === [2021-12-16 04:55:21,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 04:55:21,656 INFO L85 PathProgramCache]: Analyzing trace with hash -1960047739, now seen corresponding path program 1 times [2021-12-16 04:55:21,656 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 04:55:21,656 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899540315] [2021-12-16 04:55:21,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 04:55:21,656 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 04:55:21,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:21,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-16 04:55:21,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:21,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:55:21,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:21,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 04:55:21,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:21,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:55:21,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:21,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-16 04:55:21,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:21,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:55:21,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:21,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-16 04:55:22,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:22,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:55:22,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:22,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-16 04:55:22,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:22,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:55:22,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:22,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-16 04:55:22,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:22,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:55:22,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:22,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-16 04:55:22,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:22,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:55:22,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:22,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-16 04:55:22,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:22,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:55:22,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:22,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-16 04:55:22,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:22,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:55:22,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:22,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-16 04:55:22,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:22,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:55:22,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:22,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-16 04:55:22,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:22,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:55:22,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:22,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-16 04:55:22,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:22,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:55:22,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:22,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-16 04:55:22,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:22,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:55:22,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:22,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-16 04:55:22,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:22,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:55:22,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:22,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-16 04:55:22,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:22,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:55:22,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:22,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-16 04:55:22,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:22,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:55:22,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:22,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-12-16 04:55:22,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:22,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:55:22,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:22,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-12-16 04:55:22,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:22,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-12-16 04:55:22,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:22,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-12-16 04:55:22,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:22,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2021-12-16 04:55:22,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:22,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2021-12-16 04:55:22,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:22,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:55:22,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:22,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2021-12-16 04:55:22,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:22,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2021-12-16 04:55:22,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:22,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2021-12-16 04:55:22,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:22,256 INFO L134 CoverageAnalysis]: Checked inductivity of 1480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1480 trivial. 0 not checked. [2021-12-16 04:55:22,256 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 04:55:22,256 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899540315] [2021-12-16 04:55:22,257 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [899540315] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 04:55:22,257 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 04:55:22,257 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-16 04:55:22,257 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991579935] [2021-12-16 04:55:22,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 04:55:22,258 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-16 04:55:22,258 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 04:55:22,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-16 04:55:22,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-16 04:55:22,259 INFO L87 Difference]: Start difference. First operand 26912 states and 38381 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, (27), 3 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-12-16 04:55:25,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 04:55:25,542 INFO L93 Difference]: Finished difference Result 27195 states and 38986 transitions. [2021-12-16 04:55:25,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-16 04:55:25,546 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, (27), 3 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 277 [2021-12-16 04:55:25,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 04:55:25,682 INFO L225 Difference]: With dead ends: 27195 [2021-12-16 04:55:25,682 INFO L226 Difference]: Without dead ends: 27014 [2021-12-16 04:55:25,714 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-12-16 04:55:25,715 INFO L933 BasicCegarLoop]: 4115 mSDtfsCounter, 4185 mSDsluCounter, 5537 mSDsCounter, 0 mSdLazyCounter, 1663 mSolverCounterSat, 1312 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4680 SdHoareTripleChecker+Valid, 9652 SdHoareTripleChecker+Invalid, 2975 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1312 IncrementalHoareTripleChecker+Valid, 1663 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2021-12-16 04:55:25,715 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4680 Valid, 9652 Invalid, 2975 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1312 Valid, 1663 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2021-12-16 04:55:25,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27014 states. [2021-12-16 04:55:26,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27014 to 26771. [2021-12-16 04:55:26,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26771 states, 18856 states have (on average 1.3297093763258379) internal successors, (25073), 19493 states have internal predecessors, (25073), 6548 states have call successors, (6548), 1366 states have call predecessors, (6548), 1366 states have return successors, (6548), 6399 states have call predecessors, (6548), 6548 states have call successors, (6548) [2021-12-16 04:55:26,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26771 states to 26771 states and 38169 transitions. [2021-12-16 04:55:26,716 INFO L78 Accepts]: Start accepts. Automaton has 26771 states and 38169 transitions. Word has length 277 [2021-12-16 04:55:26,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 04:55:26,717 INFO L470 AbstractCegarLoop]: Abstraction has 26771 states and 38169 transitions. [2021-12-16 04:55:26,717 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, (27), 3 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-12-16 04:55:26,717 INFO L276 IsEmpty]: Start isEmpty. Operand 26771 states and 38169 transitions. [2021-12-16 04:55:26,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2021-12-16 04:55:26,743 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 04:55:26,743 INFO L514 BasicCegarLoop]: trace histogram [21, 21, 17, 17, 17, 17, 17, 17, 5, 5, 5, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 04:55:26,743 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-16 04:55:26,744 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] === [2021-12-16 04:55:26,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 04:55:26,744 INFO L85 PathProgramCache]: Analyzing trace with hash -119756379, now seen corresponding path program 1 times [2021-12-16 04:55:26,744 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 04:55:26,744 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029400052] [2021-12-16 04:55:26,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 04:55:26,745 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 04:55:26,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:26,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-16 04:55:26,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:26,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:55:26,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:26,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 04:55:27,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:27,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:55:27,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:27,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-16 04:55:27,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:27,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:55:27,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:27,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-16 04:55:27,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:27,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:55:27,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:27,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-16 04:55:27,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:27,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:55:27,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:27,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-16 04:55:27,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:27,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:55:27,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:27,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-16 04:55:27,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:27,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:55:27,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:27,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-16 04:55:27,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:27,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:55:27,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:27,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-16 04:55:27,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:27,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:55:27,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:27,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-16 04:55:27,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:27,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:55:27,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:27,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-16 04:55:27,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:27,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:55:27,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:27,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-16 04:55:27,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:27,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:55:27,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:27,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-16 04:55:27,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:27,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:55:27,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:27,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-16 04:55:27,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:27,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:55:27,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:27,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-16 04:55:27,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:27,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:55:27,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:27,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-16 04:55:27,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:27,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:55:27,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:27,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-12-16 04:55:27,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:27,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:55:27,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:27,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-12-16 04:55:27,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:27,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-12-16 04:55:27,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:27,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-12-16 04:55:27,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:27,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2021-12-16 04:55:27,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:27,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2021-12-16 04:55:27,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:27,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2021-12-16 04:55:27,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:27,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:55:27,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:27,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2021-12-16 04:55:27,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:27,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2021-12-16 04:55:27,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:27,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2021-12-16 04:55:27,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:27,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2021-12-16 04:55:27,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:27,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2021-12-16 04:55:27,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:27,296 INFO L134 CoverageAnalysis]: Checked inductivity of 1489 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1486 trivial. 0 not checked. [2021-12-16 04:55:27,296 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 04:55:27,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029400052] [2021-12-16 04:55:27,297 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2029400052] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 04:55:27,297 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 04:55:27,297 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-16 04:55:27,297 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178836113] [2021-12-16 04:55:27,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 04:55:27,299 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-16 04:55:27,299 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 04:55:27,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-16 04:55:27,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-16 04:55:27,299 INFO L87 Difference]: Start difference. First operand 26771 states and 38169 transitions. Second operand has 4 states, 4 states have (on average 25.25) internal successors, (101), 3 states have internal predecessors, (101), 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) [2021-12-16 04:55:32,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 04:55:32,496 INFO L93 Difference]: Finished difference Result 63766 states and 91062 transitions. [2021-12-16 04:55:32,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-16 04:55:32,497 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 3 states have internal predecessors, (101), 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 310 [2021-12-16 04:55:32,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 04:55:32,727 INFO L225 Difference]: With dead ends: 63766 [2021-12-16 04:55:32,728 INFO L226 Difference]: Without dead ends: 38730 [2021-12-16 04:55:32,843 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-16 04:55:32,845 INFO L933 BasicCegarLoop]: 7407 mSDtfsCounter, 3980 mSDsluCounter, 6985 mSDsCounter, 0 mSdLazyCounter, 2417 mSolverCounterSat, 1376 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4620 SdHoareTripleChecker+Valid, 14392 SdHoareTripleChecker+Invalid, 3793 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1376 IncrementalHoareTripleChecker+Valid, 2417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2021-12-16 04:55:32,845 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4620 Valid, 14392 Invalid, 3793 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1376 Valid, 2417 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2021-12-16 04:55:32,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38730 states. [2021-12-16 04:55:33,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38730 to 38373. [2021-12-16 04:55:34,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38373 states, 26970 states have (on average 1.3267704857248794) internal successors, (35783), 27887 states have internal predecessors, (35783), 9402 states have call successors, (9402), 2000 states have call predecessors, (9402), 2000 states have return successors, (9402), 9185 states have call predecessors, (9402), 9402 states have call successors, (9402) [2021-12-16 04:55:34,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38373 states to 38373 states and 54587 transitions. [2021-12-16 04:55:34,170 INFO L78 Accepts]: Start accepts. Automaton has 38373 states and 54587 transitions. Word has length 310 [2021-12-16 04:55:34,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 04:55:34,171 INFO L470 AbstractCegarLoop]: Abstraction has 38373 states and 54587 transitions. [2021-12-16 04:55:34,171 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 3 states have internal predecessors, (101), 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) [2021-12-16 04:55:34,171 INFO L276 IsEmpty]: Start isEmpty. Operand 38373 states and 54587 transitions. [2021-12-16 04:55:34,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 332 [2021-12-16 04:55:34,203 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 04:55:34,203 INFO L514 BasicCegarLoop]: trace histogram [22, 22, 17, 17, 17, 17, 17, 17, 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] [2021-12-16 04:55:34,203 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-16 04:55:34,203 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 04:55:34,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 04:55:34,204 INFO L85 PathProgramCache]: Analyzing trace with hash 780484005, now seen corresponding path program 1 times [2021-12-16 04:55:34,204 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 04:55:34,204 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953248841] [2021-12-16 04:55:34,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 04:55:34,204 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 04:55:34,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:34,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-16 04:55:34,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:34,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:55:34,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:34,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 04:55:34,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:34,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:55:34,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:34,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-16 04:55:34,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:34,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:55:34,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:34,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-16 04:55:34,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:34,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:55:34,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:34,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-16 04:55:34,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:34,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:55:34,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:34,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-16 04:55:34,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:34,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:55:34,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:34,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-16 04:55:34,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:34,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:55:34,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:34,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-16 04:55:34,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:34,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:55:34,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:34,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-16 04:55:34,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:34,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:55:34,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:34,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-16 04:55:34,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:34,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:55:34,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:34,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-16 04:55:34,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:34,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:55:34,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:34,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-16 04:55:34,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:34,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:55:34,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:34,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-16 04:55:34,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:34,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:55:34,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:34,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-16 04:55:34,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:34,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:55:34,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:34,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-16 04:55:34,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:34,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:55:34,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:34,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-16 04:55:34,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:34,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:55:34,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:34,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-12-16 04:55:34,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:34,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:55:34,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:34,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-12-16 04:55:34,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:34,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-12-16 04:55:34,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:34,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-12-16 04:55:34,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:34,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2021-12-16 04:55:34,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:34,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2021-12-16 04:55:34,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:34,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:55:34,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:34,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2021-12-16 04:55:34,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:34,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2021-12-16 04:55:34,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:34,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2021-12-16 04:55:34,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:34,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2021-12-16 04:55:34,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:34,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2021-12-16 04:55:34,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:34,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:55:34,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:34,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:55:34,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:34,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-16 04:55:34,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:34,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2021-12-16 04:55:34,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:55:34,678 INFO L134 CoverageAnalysis]: Checked inductivity of 1584 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 1569 trivial. 0 not checked. [2021-12-16 04:55:34,678 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 04:55:34,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953248841] [2021-12-16 04:55:34,678 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1953248841] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 04:55:34,679 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 04:55:34,679 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-16 04:55:34,679 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568582717] [2021-12-16 04:55:34,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 04:55:34,679 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-16 04:55:34,680 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 04:55:34,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-16 04:55:34,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-16 04:55:34,680 INFO L87 Difference]: Start difference. First operand 38373 states and 54587 transitions. Second operand has 4 states, 4 states have (on average 27.75) internal successors, (111), 3 states have internal predecessors, (111), 3 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33)