./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 ae007674 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-dev-ae00767 [2021-12-28 04:52:48,305 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-28 04:52:48,307 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-28 04:52:48,338 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-28 04:52:48,338 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-28 04:52:48,341 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-28 04:52:48,342 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-28 04:52:48,346 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-28 04:52:48,348 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-28 04:52:48,351 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-28 04:52:48,352 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-28 04:52:48,353 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-28 04:52:48,353 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-28 04:52:48,355 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-28 04:52:48,356 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-28 04:52:48,358 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-28 04:52:48,359 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-28 04:52:48,359 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-28 04:52:48,362 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-28 04:52:48,366 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-28 04:52:48,367 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-28 04:52:48,368 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-28 04:52:48,369 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-28 04:52:48,370 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-28 04:52:48,375 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-28 04:52:48,375 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-28 04:52:48,375 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-28 04:52:48,376 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-28 04:52:48,376 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-28 04:52:48,377 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-28 04:52:48,377 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-28 04:52:48,378 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-28 04:52:48,379 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-28 04:52:48,379 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-28 04:52:48,380 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-28 04:52:48,380 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-28 04:52:48,381 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-28 04:52:48,381 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-28 04:52:48,381 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-28 04:52:48,382 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-28 04:52:48,383 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-28 04:52:48,384 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-28 04:52:48,412 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-28 04:52:48,413 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-28 04:52:48,413 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-28 04:52:48,413 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-28 04:52:48,414 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-28 04:52:48,414 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-28 04:52:48,415 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-28 04:52:48,415 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-28 04:52:48,416 INFO L138 SettingsManager]: * Use SBE=true [2021-12-28 04:52:48,416 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-28 04:52:48,416 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-28 04:52:48,416 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-28 04:52:48,417 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-28 04:52:48,417 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-28 04:52:48,417 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-28 04:52:48,417 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-28 04:52:48,417 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-28 04:52:48,417 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-28 04:52:48,417 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-28 04:52:48,418 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-28 04:52:48,418 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-28 04:52:48,418 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 04:52:48,418 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-28 04:52:48,418 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-28 04:52:48,418 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-28 04:52:48,418 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-28 04:52:48,418 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-28 04:52:48,419 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-28 04:52:48,419 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-28 04:52:48,419 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-28 04:52:48,419 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 079fce486bad33abab391a672044e04aae9233622e9697c4aac88598201cd13f [2021-12-28 04:52:48,746 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-28 04:52:48,764 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-28 04:52:48,765 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-28 04:52:48,767 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-28 04:52:48,768 INFO L275 PluginConnector]: CDTParser initialized [2021-12-28 04:52:48,769 INFO L432 ainManager$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 [2021-12-28 04:52:48,813 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/afc6fd61c/fd643988d14146bdba65710ff757736a/FLAGa6e41e7c4 [2021-12-28 04:52:49,539 INFO L306 CDTParser]: Found 1 translation units. [2021-12-28 04:52:49,539 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 [2021-12-28 04:52:49,592 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/afc6fd61c/fd643988d14146bdba65710ff757736a/FLAGa6e41e7c4 [2021-12-28 04:52:49,839 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/afc6fd61c/fd643988d14146bdba65710ff757736a [2021-12-28 04:52:49,842 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-28 04:52:49,843 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-28 04:52:49,848 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-28 04:52:49,848 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-28 04:52:49,850 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-28 04:52:49,851 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 04:52:49" (1/1) ... [2021-12-28 04:52:49,857 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ac4ea63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:52:49, skipping insertion in model container [2021-12-28 04:52:49,858 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 04:52:49" (1/1) ... [2021-12-28 04:52:49,862 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-28 04:52:49,965 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-28 04:52:52,544 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] [2021-12-28 04:52:52,547 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] [2021-12-28 04:52:52,547 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] [2021-12-28 04:52:52,547 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] [2021-12-28 04:52:52,575 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 04:52:52,621 INFO L203 MainTranslator]: Completed pre-run [2021-12-28 04:52:52,992 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] [2021-12-28 04:52:52,993 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] [2021-12-28 04:52:52,994 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] [2021-12-28 04:52:52,994 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] [2021-12-28 04:52:53,003 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 04:52:53,221 INFO L208 MainTranslator]: Completed translation [2021-12-28 04:52:53,221 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:52:53 WrapperNode [2021-12-28 04:52:53,222 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-28 04:52:53,222 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-28 04:52:53,223 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-28 04:52:53,223 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-28 04:52:53,227 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:52:53" (1/1) ... [2021-12-28 04:52:53,332 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:52:53" (1/1) ... [2021-12-28 04:52:53,641 INFO L137 Inliner]: procedures = 447, calls = 4152, calls flagged for inlining = 247, calls inlined = 238, statements flattened = 8864 [2021-12-28 04:52:53,642 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-28 04:52:53,642 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-28 04:52:53,642 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-28 04:52:53,643 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-28 04:52:53,649 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:52:53" (1/1) ... [2021-12-28 04:52:53,659 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:52:53" (1/1) ... [2021-12-28 04:52:53,754 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:52:53" (1/1) ... [2021-12-28 04:52:53,755 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:52:53" (1/1) ... [2021-12-28 04:52:53,985 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:52:53" (1/1) ... [2021-12-28 04:52:54,019 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:52:53" (1/1) ... [2021-12-28 04:52:54,059 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:52:53" (1/1) ... [2021-12-28 04:52:54,114 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-28 04:52:54,115 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-28 04:52:54,115 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-28 04:52:54,115 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-28 04:52:54,117 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:52:53" (1/1) ... [2021-12-28 04:52:54,123 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 04:52:54,133 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 04:52:54,169 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) [2021-12-28 04:52:54,193 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 [2021-12-28 04:52:54,205 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-12-28 04:52:54,223 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-12-28 04:52:54,223 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-28 04:52:54,223 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-28 04:52:54,223 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2021-12-28 04:52:54,223 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2021-12-28 04:52:54,223 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_present [2021-12-28 04:52:54,223 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_present [2021-12-28 04:52:54,224 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_nway_reset [2021-12-28 04:52:54,224 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_nway_reset [2021-12-28 04:52:54,224 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-12-28 04:52:54,224 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-12-28 04:52:54,224 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-28 04:52:54,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-28 04:52:54,224 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-12-28 04:52:54,224 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-12-28 04:52:54,224 INFO L130 BoogieDeclarations]: Found specification of procedure set_8021q_mode [2021-12-28 04:52:54,224 INFO L138 BoogieDeclarations]: Found implementation of procedure set_8021q_mode [2021-12-28 04:52:54,224 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_remove_one [2021-12-28 04:52:54,224 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_remove_one [2021-12-28 04:52:54,224 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_restore [2021-12-28 04:52:54,224 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_restore [2021-12-28 04:52:54,224 INFO L130 BoogieDeclarations]: Found specification of procedure issue_and_wait [2021-12-28 04:52:54,224 INFO L138 BoogieDeclarations]: Found implementation of procedure issue_and_wait [2021-12-28 04:52:54,224 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-12-28 04:52:54,224 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-12-28 04:52:54,225 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite16 [2021-12-28 04:52:54,225 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite16 [2021-12-28 04:52:54,225 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite8 [2021-12-28 04:52:54,225 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite8 [2021-12-28 04:52:54,225 INFO L130 BoogieDeclarations]: Found specification of procedure window_write32 [2021-12-28 04:52:54,225 INFO L138 BoogieDeclarations]: Found implementation of procedure window_write32 [2021-12-28 04:52:54,225 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2021-12-28 04:52:54,225 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2021-12-28 04:52:54,225 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2021-12-28 04:52:54,225 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2021-12-28 04:52:54,225 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-28 04:52:54,225 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-28 04:52:54,225 INFO L130 BoogieDeclarations]: Found specification of procedure window_set [2021-12-28 04:52:54,225 INFO L138 BoogieDeclarations]: Found implementation of procedure window_set [2021-12-28 04:52:54,225 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-12-28 04:52:54,225 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-12-28 04:52:54,225 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-12-28 04:52:54,225 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-12-28 04:52:54,226 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-12-28 04:52:54,226 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-12-28 04:52:54,226 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2021-12-28 04:52:54,226 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2021-12-28 04:52:54,226 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2021-12-28 04:52:54,226 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2021-12-28 04:52:54,226 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2021-12-28 04:52:54,226 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2021-12-28 04:52:54,226 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-12-28 04:52:54,226 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-12-28 04:52:54,226 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-12-28 04:52:54,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-12-28 04:52:54,226 INFO L130 BoogieDeclarations]: Found specification of procedure arch_irqs_disabled_flags [2021-12-28 04:52:54,226 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_irqs_disabled_flags [2021-12-28 04:52:54,226 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-28 04:52:54,226 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-28 04:52:54,226 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-12-28 04:52:54,226 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-12-28 04:52:54,227 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-28 04:52:54,227 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tx_timestamp [2021-12-28 04:52:54,227 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tx_timestamp [2021-12-28 04:52:54,227 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync [2021-12-28 04:52:54,227 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync [2021-12-28 04:52:54,227 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-12-28 04:52:54,227 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-12-28 04:52:54,227 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-12-28 04:52:54,227 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-12-28 04:52:54,227 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2021-12-28 04:52:54,227 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2021-12-28 04:52:54,227 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-28 04:52:54,227 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_tx_timeout [2021-12-28 04:52:54,227 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_tx_timeout [2021-12-28 04:52:54,227 INFO L130 BoogieDeclarations]: Found specification of procedure pci_save_state [2021-12-28 04:52:54,227 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_save_state [2021-12-28 04:52:54,227 INFO L130 BoogieDeclarations]: Found specification of procedure ioport_map [2021-12-28 04:52:54,227 INFO L138 BoogieDeclarations]: Found implementation of procedure ioport_map [2021-12-28 04:52:54,227 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-12-28 04:52:54,228 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-12-28 04:52:54,228 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2021-12-28 04:52:54,228 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2021-12-28 04:52:54,228 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-12-28 04:52:54,228 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-12-28 04:52:54,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-28 04:52:54,228 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-12-28 04:52:54,228 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-12-28 04:52:54,228 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-28 04:52:54,228 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_interrupt [2021-12-28 04:52:54,228 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_interrupt [2021-12-28 04:52:54,228 INFO L130 BoogieDeclarations]: Found specification of procedure set_rx_mode [2021-12-28 04:52:54,228 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rx_mode [2021-12-28 04:52:54,228 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-12-28 04:52:54,228 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-12-28 04:52:54,228 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-28 04:52:54,228 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-28 04:52:54,228 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-12-28 04:52:54,228 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-12-28 04:52:54,229 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-12-28 04:52:54,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-12-28 04:52:54,229 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-12-28 04:52:54,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-12-28 04:52:54,229 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_set_duplex [2021-12-28 04:52:54,229 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_set_duplex [2021-12-28 04:52:54,229 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iomap [2021-12-28 04:52:54,229 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iomap [2021-12-28 04:52:54,229 INFO L130 BoogieDeclarations]: Found specification of procedure __netdev_alloc_skb [2021-12-28 04:52:54,229 INFO L138 BoogieDeclarations]: Found implementation of procedure __netdev_alloc_skb [2021-12-28 04:52:54,229 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-12-28 04:52:54,229 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-12-28 04:52:54,229 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_error [2021-12-28 04:52:54,229 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_error [2021-12-28 04:52:54,229 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-12-28 04:52:54,229 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-12-28 04:52:54,229 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_close [2021-12-28 04:52:54,229 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_close [2021-12-28 04:52:54,230 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-28 04:52:54,230 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-12-28 04:52:54,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-12-28 04:52:54,230 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_save [2021-12-28 04:52:54,230 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_save [2021-12-28 04:52:54,230 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-12-28 04:52:54,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-12-28 04:52:54,230 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2021-12-28 04:52:54,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2021-12-28 04:52:54,230 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_4 [2021-12-28 04:52:54,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_4 [2021-12-28 04:52:54,230 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2021-12-28 04:52:54,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2021-12-28 04:52:54,230 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-28 04:52:54,230 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-12-28 04:52:54,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-12-28 04:52:54,230 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-12-28 04:52:54,230 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-12-28 04:52:54,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-28 04:52:54,230 INFO L130 BoogieDeclarations]: Found specification of procedure ioread16 [2021-12-28 04:52:54,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread16 [2021-12-28 04:52:54,231 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-28 04:52:54,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-28 04:52:54,231 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2021-12-28 04:52:54,231 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2021-12-28 04:52:54,231 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-12-28 04:52:54,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-12-28 04:52:54,231 INFO L130 BoogieDeclarations]: Found specification of procedure acpi_set_WOL [2021-12-28 04:52:54,231 INFO L138 BoogieDeclarations]: Found implementation of procedure acpi_set_WOL [2021-12-28 04:52:54,231 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-12-28 04:52:54,231 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-12-28 04:52:54,231 INFO L130 BoogieDeclarations]: Found specification of procedure window_write16 [2021-12-28 04:52:54,231 INFO L138 BoogieDeclarations]: Found implementation of procedure window_write16 [2021-12-28 04:52:54,231 INFO L130 BoogieDeclarations]: Found specification of procedure ioread8 [2021-12-28 04:52:54,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread8 [2021-12-28 04:52:54,231 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-12-28 04:52:54,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-12-28 04:52:54,231 INFO L130 BoogieDeclarations]: Found specification of procedure window_read8 [2021-12-28 04:52:54,231 INFO L138 BoogieDeclarations]: Found implementation of procedure window_read8 [2021-12-28 04:52:54,231 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_vortex_cleanup_16_2 [2021-12-28 04:52:54,232 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_vortex_cleanup_16_2 [2021-12-28 04:52:54,232 INFO L130 BoogieDeclarations]: Found specification of procedure update_stats [2021-12-28 04:52:54,232 INFO L138 BoogieDeclarations]: Found implementation of procedure update_stats [2021-12-28 04:52:54,232 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-28 04:52:54,232 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-28 04:52:54,232 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-12-28 04:52:54,232 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-12-28 04:52:54,232 INFO L130 BoogieDeclarations]: Found specification of procedure poll_vortex [2021-12-28 04:52:54,232 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_vortex [2021-12-28 04:52:54,232 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-12-28 04:52:54,232 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-12-28 04:52:54,232 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_check_media [2021-12-28 04:52:54,232 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_check_media [2021-12-28 04:52:54,232 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2021-12-28 04:52:54,232 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2021-12-28 04:52:54,232 INFO L130 BoogieDeclarations]: Found specification of procedure boomerang_rx [2021-12-28 04:52:54,232 INFO L138 BoogieDeclarations]: Found implementation of procedure boomerang_rx [2021-12-28 04:52:54,232 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_save_flags [2021-12-28 04:52:54,232 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_save_flags [2021-12-28 04:52:54,232 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_open [2021-12-28 04:52:54,232 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_open [2021-12-28 04:52:54,232 INFO L130 BoogieDeclarations]: Found specification of procedure dump_tx_ring [2021-12-28 04:52:54,233 INFO L138 BoogieDeclarations]: Found implementation of procedure dump_tx_ring [2021-12-28 04:52:54,233 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2021-12-28 04:52:54,233 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2021-12-28 04:52:54,233 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-28 04:52:54,233 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-28 04:52:54,233 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2021-12-28 04:52:54,233 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2021-12-28 04:52:54,233 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_probe1 [2021-12-28 04:52:54,233 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_probe1 [2021-12-28 04:52:54,234 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-28 04:52:54,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-28 04:52:54,234 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-28 04:52:54,234 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-28 04:52:54,234 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-12-28 04:52:54,234 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-12-28 04:52:54,234 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_on [2021-12-28 04:52:54,234 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_on [2021-12-28 04:52:54,234 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-12-28 04:52:54,235 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-12-28 04:52:54,235 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-12-28 04:52:54,235 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-12-28 04:52:54,235 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2021-12-28 04:52:54,235 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2021-12-28 04:52:54,235 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-12-28 04:52:54,235 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-12-28 04:52:54,235 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2021-12-28 04:52:54,235 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2021-12-28 04:52:54,235 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-28 04:52:54,236 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_off [2021-12-28 04:52:54,236 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_off [2021-12-28 04:52:54,236 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-12-28 04:52:54,236 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-12-28 04:52:54,236 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value_probe [2021-12-28 04:52:54,236 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value_probe [2021-12-28 04:52:54,236 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-28 04:52:54,236 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_suspend [2021-12-28 04:52:54,236 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_suspend [2021-12-28 04:52:54,237 INFO L130 BoogieDeclarations]: Found specification of procedure boomerang_interrupt [2021-12-28 04:52:54,237 INFO L138 BoogieDeclarations]: Found implementation of procedure boomerang_interrupt [2021-12-28 04:52:54,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-28 04:52:54,237 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-12-28 04:52:54,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-12-28 04:52:54,237 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2021-12-28 04:52:54,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2021-12-28 04:52:54,237 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-12-28 04:52:54,237 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-12-28 04:52:54,238 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-12-28 04:52:54,238 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-12-28 04:52:54,238 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-12-28 04:52:54,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-12-28 04:52:54,238 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2021-12-28 04:52:54,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2021-12-28 04:52:54,238 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2021-12-28 04:52:54,238 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2021-12-28 04:52:54,238 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_sync [2021-12-28 04:52:54,238 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_sync [2021-12-28 04:52:54,239 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_resume [2021-12-28 04:52:54,239 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_resume [2021-12-28 04:52:54,239 INFO L130 BoogieDeclarations]: Found specification of procedure pci_restore_state [2021-12-28 04:52:54,239 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_restore_state [2021-12-28 04:52:54,239 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2021-12-28 04:52:54,239 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2021-12-28 04:52:54,239 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_rx [2021-12-28 04:52:54,239 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_rx [2021-12-28 04:52:54,239 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-12-28 04:52:54,240 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-12-28 04:52:54,240 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-12-28 04:52:54,240 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-12-28 04:52:54,240 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2021-12-28 04:52:54,240 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2021-12-28 04:52:54,240 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-12-28 04:52:54,240 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-12-28 04:52:54,240 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_delay [2021-12-28 04:52:54,240 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_delay [2021-12-28 04:52:54,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-28 04:52:54,241 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_down [2021-12-28 04:52:54,241 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_down [2021-12-28 04:52:54,242 INFO L130 BoogieDeclarations]: Found specification of procedure eth_type_trans [2021-12-28 04:52:54,242 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_type_trans [2021-12-28 04:52:54,242 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2021-12-28 04:52:54,242 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2021-12-28 04:52:54,242 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-28 04:52:54,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-28 04:52:54,242 INFO L130 BoogieDeclarations]: Found specification of procedure window_write8 [2021-12-28 04:52:54,242 INFO L138 BoogieDeclarations]: Found implementation of procedure window_write8 [2021-12-28 04:52:54,242 INFO L130 BoogieDeclarations]: Found specification of procedure window_read32 [2021-12-28 04:52:54,243 INFO L138 BoogieDeclarations]: Found implementation of procedure window_read32 [2021-12-28 04:52:54,255 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~$Pointer$~TO~int [2021-12-28 04:52:54,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~$Pointer$~TO~int [2021-12-28 04:52:54,255 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32_rep [2021-12-28 04:52:54,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32_rep [2021-12-28 04:52:54,256 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2021-12-28 04:52:54,256 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2021-12-28 04:52:54,256 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_up [2021-12-28 04:52:54,256 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_up [2021-12-28 04:52:54,256 INFO L130 BoogieDeclarations]: Found specification of procedure window_read16 [2021-12-28 04:52:54,256 INFO L138 BoogieDeclarations]: Found implementation of procedure window_read16 [2021-12-28 04:52:54,256 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-12-28 04:52:54,256 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-12-28 04:52:54,256 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2021-12-28 04:52:54,257 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2021-12-28 04:52:54,257 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2021-12-28 04:52:54,257 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2021-12-28 04:52:54,257 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-12-28 04:52:54,257 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-12-28 04:52:54,257 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-12-28 04:52:54,257 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-12-28 04:52:54,257 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-28 04:52:54,257 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-12-28 04:52:54,257 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-12-28 04:52:54,258 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2021-12-28 04:52:54,258 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2021-12-28 04:52:55,197 INFO L234 CfgBuilder]: Building ICFG [2021-12-28 04:52:55,203 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-28 04:52:56,254 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-28 04:53:00,026 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-12-28 04:53:00,224 INFO L275 CfgBuilder]: Performing block encoding [2021-12-28 04:53:00,246 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-28 04:53:00,246 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-28 04:53:00,251 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 04:53:00 BoogieIcfgContainer [2021-12-28 04:53:00,251 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-28 04:53:00,252 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-28 04:53:00,252 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-28 04:53:00,254 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-28 04:53:00,255 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.12 04:52:49" (1/3) ... [2021-12-28 04:53:00,255 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78b6994f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 04:53:00, skipping insertion in model container [2021-12-28 04:53:00,255 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:52:53" (2/3) ... [2021-12-28 04:53:00,255 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78b6994f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 04:53:00, skipping insertion in model container [2021-12-28 04:53:00,256 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 04:53:00" (3/3) ... [2021-12-28 04:53:00,256 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-3com-3c59x.cil.i [2021-12-28 04:53:00,260 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-28 04:53:00,261 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-12-28 04:53:00,310 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-28 04:53:00,322 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 [2021-12-28 04:53:00,322 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-12-28 04:53:00,380 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) [2021-12-28 04:53:00,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2021-12-28 04:53:00,394 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:53:00,395 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] [2021-12-28 04:53:00,395 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] === [2021-12-28 04:53:00,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:53:00,399 INFO L85 PathProgramCache]: Analyzing trace with hash 986609956, now seen corresponding path program 1 times [2021-12-28 04:53:00,405 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:53:00,405 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85626044] [2021-12-28 04:53:00,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:53:00,406 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:53:00,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:01,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-28 04:53:01,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:01,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:53:01,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:01,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 04:53:01,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:01,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:53:01,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:01,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 04:53:01,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:01,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:53:01,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:01,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-28 04:53:01,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:01,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:53:01,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:01,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-28 04:53:01,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:01,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:53:01,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:01,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-28 04:53:01,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:01,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:53:01,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:01,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-28 04:53:01,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:01,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:53:01,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:01,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-28 04:53:01,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:01,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:53:01,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:01,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-28 04:53:01,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:01,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:53:01,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:01,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-28 04:53:01,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:01,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:53:01,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:01,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-28 04:53:01,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:01,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:53:01,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:01,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-28 04:53:01,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:01,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:53:01,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:01,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-28 04:53:01,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:01,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:53:01,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:01,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-28 04:53:01,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:01,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:53:01,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:01,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-28 04:53:01,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:01,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:53:01,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:01,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-28 04:53:01,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:01,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:53:01,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:01,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-12-28 04:53:01,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:01,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:53:01,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:01,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-12-28 04:53:01,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:01,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-12-28 04:53:01,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:01,508 INFO L134 CoverageAnalysis]: Checked inductivity of 1275 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1275 trivial. 0 not checked. [2021-12-28 04:53:01,508 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:53:01,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85626044] [2021-12-28 04:53:01,510 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [85626044] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:53:01,512 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:53:01,513 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-28 04:53:01,514 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987393325] [2021-12-28 04:53:01,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:53:01,518 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-28 04:53:01,519 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:53:01,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-28 04:53:01,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-28 04:53:01,548 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) [2021-12-28 04:53:06,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 04:53:06,672 INFO L93 Difference]: Finished difference Result 8940 states and 13118 transitions. [2021-12-28 04:53:06,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-28 04:53:06,676 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 [2021-12-28 04:53:06,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 04:53:06,800 INFO L225 Difference]: With dead ends: 8940 [2021-12-28 04:53:06,800 INFO L226 Difference]: Without dead ends: 5940 [2021-12-28 04:53:06,839 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 [2021-12-28 04:53:06,842 INFO L933 BasicCegarLoop]: 4684 mSDtfsCounter, 4882 mSDsluCounter, 4899 mSDsCounter, 0 mSdLazyCounter, 3007 mSolverCounterSat, 2036 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5547 SdHoareTripleChecker+Valid, 9583 SdHoareTripleChecker+Invalid, 5043 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2036 IncrementalHoareTripleChecker+Valid, 3007 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2021-12-28 04:53:06,843 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5547 Valid, 9583 Invalid, 5043 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2036 Valid, 3007 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2021-12-28 04:53:06,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5940 states. [2021-12-28 04:53:07,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5940 to 5879. [2021-12-28 04:53:07,334 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) [2021-12-28 04:53:07,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5879 states to 5879 states and 8465 transitions. [2021-12-28 04:53:07,365 INFO L78 Accepts]: Start accepts. Automaton has 5879 states and 8465 transitions. Word has length 214 [2021-12-28 04:53:07,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 04:53:07,368 INFO L470 AbstractCegarLoop]: Abstraction has 5879 states and 8465 transitions. [2021-12-28 04:53:07,369 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) [2021-12-28 04:53:07,369 INFO L276 IsEmpty]: Start isEmpty. Operand 5879 states and 8465 transitions. [2021-12-28 04:53:07,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2021-12-28 04:53:07,379 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:53:07,379 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] [2021-12-28 04:53:07,380 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-28 04:53:07,380 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] === [2021-12-28 04:53:07,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:53:07,380 INFO L85 PathProgramCache]: Analyzing trace with hash 100661317, now seen corresponding path program 1 times [2021-12-28 04:53:07,381 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:53:07,381 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563441285] [2021-12-28 04:53:07,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:53:07,381 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:53:07,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:07,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-28 04:53:07,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:07,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:53:07,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:07,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 04:53:07,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:07,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:53:07,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:07,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 04:53:07,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:07,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:53:07,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:07,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-28 04:53:07,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:07,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:53:07,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:07,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-28 04:53:07,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:07,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:53:07,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:07,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-28 04:53:07,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:07,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:53:07,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:07,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-28 04:53:07,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:07,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:53:07,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:07,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-28 04:53:07,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:07,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:53:07,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:07,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-28 04:53:07,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:07,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:53:07,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:08,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-28 04:53:08,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:08,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:53:08,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:08,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-28 04:53:08,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:08,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:53:08,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:08,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-28 04:53:08,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:08,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:53:08,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:08,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-28 04:53:08,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:08,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:53:08,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:08,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-28 04:53:08,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:08,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:53:08,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:08,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-28 04:53:08,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:08,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:53:08,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:08,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-28 04:53:08,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:08,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:53:08,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:08,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-12-28 04:53:08,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:08,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:53:08,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:08,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-12-28 04:53:08,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:08,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2021-12-28 04:53:08,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:08,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:53:08,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:08,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:53:08,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:08,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-28 04:53:08,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:08,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2021-12-28 04:53:08,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:08,407 INFO L134 CoverageAnalysis]: Checked inductivity of 1279 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1279 trivial. 0 not checked. [2021-12-28 04:53:08,407 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:53:08,407 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563441285] [2021-12-28 04:53:08,408 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1563441285] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:53:08,408 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:53:08,408 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-28 04:53:08,408 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163855471] [2021-12-28 04:53:08,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:53:08,410 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-28 04:53:08,410 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:53:08,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-28 04:53:08,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-28 04:53:08,411 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) [2021-12-28 04:53:13,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 04:53:13,192 INFO L93 Difference]: Finished difference Result 15649 states and 22560 transitions. [2021-12-28 04:53:13,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-28 04:53:13,193 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 [2021-12-28 04:53:13,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 04:53:13,251 INFO L225 Difference]: With dead ends: 15649 [2021-12-28 04:53:13,251 INFO L226 Difference]: Without dead ends: 9809 [2021-12-28 04:53:13,281 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 [2021-12-28 04:53:13,282 INFO L933 BasicCegarLoop]: 4722 mSDtfsCounter, 4834 mSDsluCounter, 4946 mSDsCounter, 0 mSdLazyCounter, 3029 mSolverCounterSat, 2021 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5496 SdHoareTripleChecker+Valid, 9668 SdHoareTripleChecker+Invalid, 5050 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2021 IncrementalHoareTripleChecker+Valid, 3029 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2021-12-28 04:53:13,282 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5496 Valid, 9668 Invalid, 5050 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2021 Valid, 3029 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2021-12-28 04:53:13,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9809 states. [2021-12-28 04:53:13,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9809 to 9691. [2021-12-28 04:53:13,563 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) [2021-12-28 04:53:13,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9691 states to 9691 states and 13884 transitions. [2021-12-28 04:53:13,606 INFO L78 Accepts]: Start accepts. Automaton has 9691 states and 13884 transitions. Word has length 248 [2021-12-28 04:53:13,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 04:53:13,608 INFO L470 AbstractCegarLoop]: Abstraction has 9691 states and 13884 transitions. [2021-12-28 04:53:13,608 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) [2021-12-28 04:53:13,609 INFO L276 IsEmpty]: Start isEmpty. Operand 9691 states and 13884 transitions. [2021-12-28 04:53:13,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2021-12-28 04:53:13,616 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:53:13,616 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] [2021-12-28 04:53:13,617 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-28 04:53:13,617 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] === [2021-12-28 04:53:13,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:53:13,617 INFO L85 PathProgramCache]: Analyzing trace with hash -1503878482, now seen corresponding path program 1 times [2021-12-28 04:53:13,618 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:53:13,618 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638805072] [2021-12-28 04:53:13,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:53:13,618 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:53:13,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:13,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-28 04:53:13,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:13,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:53:13,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:13,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 04:53:13,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:13,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:53:13,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:13,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 04:53:13,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:13,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:53:13,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:13,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-28 04:53:13,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:13,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:53:13,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:13,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-28 04:53:13,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:13,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:53:13,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:13,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-28 04:53:13,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:14,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:53:14,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:14,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-28 04:53:14,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:14,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:53:14,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:14,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-28 04:53:14,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:14,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:53:14,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:14,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-28 04:53:14,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:14,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:53:14,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:14,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-28 04:53:14,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:14,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:53:14,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:14,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-28 04:53:14,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:14,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:53:14,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:14,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-28 04:53:14,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:14,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:53:14,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:14,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-28 04:53:14,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:14,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:53:14,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:14,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-28 04:53:14,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:14,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:53:14,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:14,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-28 04:53:14,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:14,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:53:14,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:14,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-28 04:53:14,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:14,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:53:14,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:14,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-12-28 04:53:14,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:14,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:53:14,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:14,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-12-28 04:53:14,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:14,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2021-12-28 04:53:14,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:14,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2021-12-28 04:53:14,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:14,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2021-12-28 04:53:14,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:14,197 INFO L134 CoverageAnalysis]: Checked inductivity of 1275 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1275 trivial. 0 not checked. [2021-12-28 04:53:14,198 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:53:14,198 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638805072] [2021-12-28 04:53:14,198 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [638805072] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:53:14,198 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:53:14,199 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-28 04:53:14,199 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964154397] [2021-12-28 04:53:14,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:53:14,200 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-28 04:53:14,200 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:53:14,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-28 04:53:14,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-28 04:53:14,201 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) [2021-12-28 04:53:19,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 04:53:19,043 INFO L93 Difference]: Finished difference Result 26324 states and 37723 transitions. [2021-12-28 04:53:19,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-28 04:53:19,044 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 [2021-12-28 04:53:19,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 04:53:19,186 INFO L225 Difference]: With dead ends: 26324 [2021-12-28 04:53:19,187 INFO L226 Difference]: Without dead ends: 16672 [2021-12-28 04:53:19,237 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 [2021-12-28 04:53:19,238 INFO L933 BasicCegarLoop]: 5137 mSDtfsCounter, 4702 mSDsluCounter, 5247 mSDsCounter, 0 mSdLazyCounter, 3049 mSolverCounterSat, 1954 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5351 SdHoareTripleChecker+Valid, 10384 SdHoareTripleChecker+Invalid, 5003 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1954 IncrementalHoareTripleChecker+Valid, 3049 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2021-12-28 04:53:19,238 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5351 Valid, 10384 Invalid, 5003 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1954 Valid, 3049 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2021-12-28 04:53:19,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16672 states. [2021-12-28 04:53:19,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16672 to 16462. [2021-12-28 04:53:19,893 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) [2021-12-28 04:53:19,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16462 states to 16462 states and 23435 transitions. [2021-12-28 04:53:19,979 INFO L78 Accepts]: Start accepts. Automaton has 16462 states and 23435 transitions. Word has length 239 [2021-12-28 04:53:19,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 04:53:19,980 INFO L470 AbstractCegarLoop]: Abstraction has 16462 states and 23435 transitions. [2021-12-28 04:53:19,980 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) [2021-12-28 04:53:19,980 INFO L276 IsEmpty]: Start isEmpty. Operand 16462 states and 23435 transitions. [2021-12-28 04:53:19,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2021-12-28 04:53:19,992 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:53:19,993 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] [2021-12-28 04:53:19,993 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-28 04:53:19,993 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] === [2021-12-28 04:53:19,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:53:19,994 INFO L85 PathProgramCache]: Analyzing trace with hash -1826034233, now seen corresponding path program 1 times [2021-12-28 04:53:19,994 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:53:19,994 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231334040] [2021-12-28 04:53:19,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:53:19,995 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:53:20,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:20,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-28 04:53:20,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:20,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:53:20,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:20,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 04:53:20,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:20,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:53:20,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:20,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 04:53:20,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:20,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:53:20,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:20,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-28 04:53:20,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:20,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:53:20,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:20,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-28 04:53:20,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:20,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:53:20,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:20,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-28 04:53:20,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:20,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:53:20,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:20,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-28 04:53:20,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:20,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:53:20,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:20,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-28 04:53:20,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:20,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:53:20,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:20,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-28 04:53:20,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:20,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:53:20,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:20,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-28 04:53:20,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:20,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:53:20,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:20,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-28 04:53:20,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:20,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:53:20,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:20,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-28 04:53:20,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:20,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:53:20,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:20,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-28 04:53:20,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:20,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:53:20,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:20,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-28 04:53:20,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:20,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:53:20,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:20,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-28 04:53:20,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:20,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:53:20,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:20,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-28 04:53:20,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:20,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:53:20,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:20,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-12-28 04:53:20,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:20,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:53:20,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:20,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-12-28 04:53:20,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:20,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-12-28 04:53:20,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:20,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-12-28 04:53:20,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:20,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2021-12-28 04:53:20,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:20,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2021-12-28 04:53:20,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:20,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:53:20,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:20,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2021-12-28 04:53:20,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:20,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2021-12-28 04:53:20,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:20,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2021-12-28 04:53:20,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:20,840 INFO L134 CoverageAnalysis]: Checked inductivity of 1480 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 1470 trivial. 0 not checked. [2021-12-28 04:53:20,841 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:53:20,841 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231334040] [2021-12-28 04:53:20,841 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1231334040] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:53:20,841 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:53:20,841 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-28 04:53:20,842 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151344086] [2021-12-28 04:53:20,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:53:20,842 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-28 04:53:20,842 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:53:20,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-28 04:53:20,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-28 04:53:20,843 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) [2021-12-28 04:53:25,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 04:53:25,231 INFO L93 Difference]: Finished difference Result 41924 states and 59912 transitions. [2021-12-28 04:53:25,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-28 04:53:25,232 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 [2021-12-28 04:53:25,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 04:53:25,371 INFO L225 Difference]: With dead ends: 41924 [2021-12-28 04:53:25,372 INFO L226 Difference]: Without dead ends: 27197 [2021-12-28 04:53:25,435 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 [2021-12-28 04:53:25,437 INFO L933 BasicCegarLoop]: 7956 mSDtfsCounter, 4100 mSDsluCounter, 6837 mSDsCounter, 0 mSdLazyCounter, 3031 mSolverCounterSat, 1333 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4759 SdHoareTripleChecker+Valid, 14793 SdHoareTripleChecker+Invalid, 4364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1333 IncrementalHoareTripleChecker+Valid, 3031 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2021-12-28 04:53:25,438 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4759 Valid, 14793 Invalid, 4364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1333 Valid, 3031 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2021-12-28 04:53:25,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27197 states. [2021-12-28 04:53:26,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27197 to 26912. [2021-12-28 04:53:26,091 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) [2021-12-28 04:53:26,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26912 states to 26912 states and 38381 transitions. [2021-12-28 04:53:26,443 INFO L78 Accepts]: Start accepts. Automaton has 26912 states and 38381 transitions. Word has length 277 [2021-12-28 04:53:26,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 04:53:26,444 INFO L470 AbstractCegarLoop]: Abstraction has 26912 states and 38381 transitions. [2021-12-28 04:53:26,444 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) [2021-12-28 04:53:26,444 INFO L276 IsEmpty]: Start isEmpty. Operand 26912 states and 38381 transitions. [2021-12-28 04:53:26,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2021-12-28 04:53:26,452 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:53:26,453 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] [2021-12-28 04:53:26,454 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-28 04:53:26,454 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] === [2021-12-28 04:53:26,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:53:26,456 INFO L85 PathProgramCache]: Analyzing trace with hash -1960047739, now seen corresponding path program 1 times [2021-12-28 04:53:26,456 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:53:26,457 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69604921] [2021-12-28 04:53:26,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:53:26,457 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:53:26,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:26,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-28 04:53:26,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:26,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:53:26,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:26,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 04:53:26,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:26,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:53:26,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:26,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 04:53:26,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:26,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:53:26,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:26,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-28 04:53:26,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:26,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:53:26,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:26,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-28 04:53:26,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:26,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:53:26,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:26,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-28 04:53:26,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:26,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:53:26,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:26,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-28 04:53:26,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:26,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:53:26,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:26,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-28 04:53:26,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:27,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:53:27,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:27,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-28 04:53:27,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:27,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:53:27,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:27,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-28 04:53:27,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:27,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:53:27,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:27,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-28 04:53:27,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:27,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:53:27,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:27,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-28 04:53:27,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:27,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:53:27,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:27,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-28 04:53:27,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:27,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:53:27,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:27,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-28 04:53:27,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:27,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:53:27,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:27,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-28 04:53:27,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:27,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:53:27,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:27,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-28 04:53:27,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:27,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:53:27,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:27,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-12-28 04:53:27,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:27,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:53:27,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:27,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-12-28 04:53:27,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:27,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-12-28 04:53:27,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:27,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-12-28 04:53:27,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:27,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2021-12-28 04:53:27,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:27,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2021-12-28 04:53:27,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:27,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:53:27,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:27,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2021-12-28 04:53:27,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:27,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2021-12-28 04:53:27,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:27,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2021-12-28 04:53:27,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:27,178 INFO L134 CoverageAnalysis]: Checked inductivity of 1480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1480 trivial. 0 not checked. [2021-12-28 04:53:27,178 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:53:27,179 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69604921] [2021-12-28 04:53:27,179 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [69604921] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:53:27,179 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:53:27,179 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-28 04:53:27,179 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739620867] [2021-12-28 04:53:27,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:53:27,180 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-28 04:53:27,180 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:53:27,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-28 04:53:27,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-28 04:53:27,180 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) [2021-12-28 04:53:30,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 04:53:30,739 INFO L93 Difference]: Finished difference Result 27195 states and 38986 transitions. [2021-12-28 04:53:30,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-28 04:53:30,740 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 [2021-12-28 04:53:30,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 04:53:30,847 INFO L225 Difference]: With dead ends: 27195 [2021-12-28 04:53:30,848 INFO L226 Difference]: Without dead ends: 27014 [2021-12-28 04:53:30,874 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 [2021-12-28 04:53:30,874 INFO L933 BasicCegarLoop]: 4116 mSDtfsCounter, 4185 mSDsluCounter, 4913 mSDsCounter, 0 mSdLazyCounter, 2289 mSolverCounterSat, 1312 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4679 SdHoareTripleChecker+Valid, 9029 SdHoareTripleChecker+Invalid, 3601 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1312 IncrementalHoareTripleChecker+Valid, 2289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2021-12-28 04:53:30,875 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4679 Valid, 9029 Invalid, 3601 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1312 Valid, 2289 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2021-12-28 04:53:30,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27014 states. [2021-12-28 04:53:31,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27014 to 26771. [2021-12-28 04:53:31,620 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) [2021-12-28 04:53:31,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26771 states to 26771 states and 38169 transitions. [2021-12-28 04:53:31,717 INFO L78 Accepts]: Start accepts. Automaton has 26771 states and 38169 transitions. Word has length 277 [2021-12-28 04:53:31,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 04:53:31,717 INFO L470 AbstractCegarLoop]: Abstraction has 26771 states and 38169 transitions. [2021-12-28 04:53:31,718 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) [2021-12-28 04:53:31,718 INFO L276 IsEmpty]: Start isEmpty. Operand 26771 states and 38169 transitions. [2021-12-28 04:53:31,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2021-12-28 04:53:31,744 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:53:31,745 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] [2021-12-28 04:53:31,745 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-28 04:53:31,745 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] === [2021-12-28 04:53:31,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:53:31,745 INFO L85 PathProgramCache]: Analyzing trace with hash -119756379, now seen corresponding path program 1 times [2021-12-28 04:53:31,746 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:53:31,747 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718686492] [2021-12-28 04:53:31,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:53:31,747 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:53:31,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:31,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-28 04:53:31,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:31,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:53:31,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:31,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 04:53:31,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:31,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:53:31,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:31,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 04:53:31,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:31,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:53:31,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:31,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-28 04:53:31,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:31,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:53:31,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:31,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-28 04:53:31,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:31,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:53:31,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:31,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-28 04:53:31,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:31,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:53:31,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:31,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-28 04:53:31,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:31,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:53:31,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:31,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-28 04:53:32,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:32,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:53:32,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:32,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-28 04:53:32,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:32,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:53:32,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:32,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-28 04:53:32,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:32,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:53:32,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:32,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-28 04:53:32,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:32,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:53:32,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:32,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-28 04:53:32,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:32,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:53:32,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:32,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-28 04:53:32,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:32,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:53:32,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:32,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-28 04:53:32,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:32,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:53:32,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:32,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-28 04:53:32,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:32,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:53:32,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:32,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-28 04:53:32,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:32,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:53:32,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:32,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-12-28 04:53:32,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:32,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:53:32,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:32,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-12-28 04:53:32,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:32,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-12-28 04:53:32,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:32,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-12-28 04:53:32,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:32,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2021-12-28 04:53:32,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:32,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2021-12-28 04:53:32,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:32,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2021-12-28 04:53:32,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:32,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:53:32,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:32,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2021-12-28 04:53:32,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:32,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2021-12-28 04:53:32,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:32,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2021-12-28 04:53:32,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:32,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2021-12-28 04:53:32,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:32,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2021-12-28 04:53:32,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:32,301 INFO L134 CoverageAnalysis]: Checked inductivity of 1489 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1486 trivial. 0 not checked. [2021-12-28 04:53:32,301 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:53:32,301 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718686492] [2021-12-28 04:53:32,302 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [718686492] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:53:32,302 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:53:32,302 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-28 04:53:32,302 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6808372] [2021-12-28 04:53:32,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:53:32,303 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-28 04:53:32,303 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:53:32,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-28 04:53:32,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-28 04:53:32,304 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) [2021-12-28 04:53:36,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 04:53:36,693 INFO L93 Difference]: Finished difference Result 63766 states and 91062 transitions. [2021-12-28 04:53:36,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-28 04:53:36,694 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 [2021-12-28 04:53:36,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 04:53:36,851 INFO L225 Difference]: With dead ends: 63766 [2021-12-28 04:53:36,852 INFO L226 Difference]: Without dead ends: 38730 [2021-12-28 04:53:37,006 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 [2021-12-28 04:53:37,007 INFO L933 BasicCegarLoop]: 7407 mSDtfsCounter, 3980 mSDsluCounter, 6364 mSDsCounter, 0 mSdLazyCounter, 3037 mSolverCounterSat, 1376 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4619 SdHoareTripleChecker+Valid, 13771 SdHoareTripleChecker+Invalid, 4413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1376 IncrementalHoareTripleChecker+Valid, 3037 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2021-12-28 04:53:37,008 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4619 Valid, 13771 Invalid, 4413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1376 Valid, 3037 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2021-12-28 04:53:37,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38730 states. [2021-12-28 04:53:37,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38730 to 38373. [2021-12-28 04:53:38,033 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) [2021-12-28 04:53:38,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38373 states to 38373 states and 54587 transitions. [2021-12-28 04:53:38,183 INFO L78 Accepts]: Start accepts. Automaton has 38373 states and 54587 transitions. Word has length 310 [2021-12-28 04:53:38,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 04:53:38,184 INFO L470 AbstractCegarLoop]: Abstraction has 38373 states and 54587 transitions. [2021-12-28 04:53:38,184 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) [2021-12-28 04:53:38,184 INFO L276 IsEmpty]: Start isEmpty. Operand 38373 states and 54587 transitions. [2021-12-28 04:53:38,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 332 [2021-12-28 04:53:38,214 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:53:38,214 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] [2021-12-28 04:53:38,214 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-28 04:53:38,215 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] === [2021-12-28 04:53:38,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:53:38,215 INFO L85 PathProgramCache]: Analyzing trace with hash 780484005, now seen corresponding path program 1 times [2021-12-28 04:53:38,215 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:53:38,215 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688656603] [2021-12-28 04:53:38,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:53:38,216 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:53:38,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:38,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-28 04:53:38,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:38,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:53:38,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:38,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 04:53:38,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:38,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:53:38,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:38,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 04:53:38,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:38,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:53:38,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:38,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-28 04:53:38,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:38,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:53:38,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:38,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-28 04:53:38,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:38,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:53:38,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:38,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-28 04:53:38,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:38,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:53:38,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:38,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-28 04:53:38,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:38,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:53:38,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:38,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-28 04:53:38,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:38,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:53:38,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:38,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-28 04:53:38,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:38,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:53:38,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:38,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-28 04:53:38,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:38,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:53:38,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:38,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-28 04:53:38,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:38,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:53:38,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:38,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-28 04:53:38,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:38,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:53:38,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:38,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-28 04:53:38,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:38,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:53:38,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:38,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-28 04:53:38,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:38,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:53:38,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:38,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-28 04:53:38,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:38,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:53:38,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:38,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-28 04:53:38,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:38,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:53:38,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:38,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-12-28 04:53:38,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:38,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:53:38,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:38,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-12-28 04:53:38,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:38,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-12-28 04:53:38,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:38,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-12-28 04:53:38,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:38,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2021-12-28 04:53:38,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:38,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2021-12-28 04:53:38,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:38,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:53:38,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:38,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2021-12-28 04:53:38,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:38,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2021-12-28 04:53:38,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:38,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2021-12-28 04:53:38,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:38,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2021-12-28 04:53:38,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:38,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2021-12-28 04:53:38,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:38,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:53:38,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:38,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:53:38,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:38,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-28 04:53:38,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:38,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2021-12-28 04:53:38,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:53:38,816 INFO L134 CoverageAnalysis]: Checked inductivity of 1584 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 1569 trivial. 0 not checked. [2021-12-28 04:53:38,816 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:53:38,816 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688656603] [2021-12-28 04:53:38,816 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [688656603] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:53:38,816 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:53:38,816 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-28 04:53:38,817 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157672726] [2021-12-28 04:53:38,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:53:38,817 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-28 04:53:38,817 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:53:38,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-28 04:53:38,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-28 04:53:38,818 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) [2021-12-28 04:53:42,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 04:53:42,870 INFO L93 Difference]: Finished difference Result 90717 states and 129458 transitions. [2021-12-28 04:53:42,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-28 04:53:42,872 INFO L78 Accepts]: Start accepts. Automaton has 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) Word has length 331 [2021-12-28 04:53:42,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 04:53:43,133 INFO L225 Difference]: With dead ends: 90717 [2021-12-28 04:53:43,134 INFO L226 Difference]: Without dead ends: 51673 [2021-12-28 04:53:43,249 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-28 04:53:43,251 INFO L933 BasicCegarLoop]: 8005 mSDtfsCounter, 4060 mSDsluCounter, 6841 mSDsCounter, 0 mSdLazyCounter, 3010 mSolverCounterSat, 1290 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4715 SdHoareTripleChecker+Valid, 14846 SdHoareTripleChecker+Invalid, 4300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1290 IncrementalHoareTripleChecker+Valid, 3010 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2021-12-28 04:53:43,252 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4715 Valid, 14846 Invalid, 4300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1290 Valid, 3010 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2021-12-28 04:53:43,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51673 states.