./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2724018e-3ec9-486d-b2e4-c81d2d8c381b/bin/uautomizer-J5u9QxTXDZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2724018e-3ec9-486d-b2e4-c81d2d8c381b/bin/uautomizer-J5u9QxTXDZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2724018e-3ec9-486d-b2e4-c81d2d8c381b/bin/uautomizer-J5u9QxTXDZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2724018e-3ec9-486d-b2e4-c81d2d8c381b/bin/uautomizer-J5u9QxTXDZ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2724018e-3ec9-486d-b2e4-c81d2d8c381b/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2724018e-3ec9-486d-b2e4-c81d2d8c381b/bin/uautomizer-J5u9QxTXDZ --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 7c9f1b92adb9acc769d32e01935187ba88bc4e22a7a5cb13176ef92b5b4818de --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-dbf71c6-m [2022-10-17 10:38:22,704 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 10:38:22,706 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 10:38:22,736 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 10:38:22,737 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 10:38:22,738 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 10:38:22,740 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 10:38:22,742 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 10:38:22,744 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 10:38:22,746 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 10:38:22,747 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 10:38:22,749 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 10:38:22,749 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 10:38:22,750 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 10:38:22,752 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 10:38:22,753 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 10:38:22,754 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 10:38:22,755 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 10:38:22,757 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 10:38:22,760 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 10:38:22,761 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 10:38:22,763 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 10:38:22,765 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 10:38:22,766 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 10:38:22,771 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 10:38:22,771 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 10:38:22,772 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 10:38:22,773 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 10:38:22,774 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 10:38:22,775 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 10:38:22,775 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 10:38:22,776 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 10:38:22,777 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 10:38:22,778 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 10:38:22,780 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 10:38:22,780 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 10:38:22,781 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 10:38:22,782 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 10:38:22,782 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 10:38:22,783 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 10:38:22,784 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 10:38:22,785 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2724018e-3ec9-486d-b2e4-c81d2d8c381b/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-10-17 10:38:22,809 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 10:38:22,810 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 10:38:22,810 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 10:38:22,811 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 10:38:22,812 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 10:38:22,824 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-17 10:38:22,826 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 10:38:22,827 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 10:38:22,827 INFO L138 SettingsManager]: * Use SBE=true [2022-10-17 10:38:22,827 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 10:38:22,828 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 10:38:22,829 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 10:38:22,829 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 10:38:22,829 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 10:38:22,830 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 10:38:22,830 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 10:38:22,830 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 10:38:22,830 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 10:38:22,831 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 10:38:22,831 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-17 10:38:22,831 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-17 10:38:22,832 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:38:22,832 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 10:38:22,833 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 10:38:22,833 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 10:38:22,833 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-17 10:38:22,834 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 10:38:22,834 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-17 10:38:22,834 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-10-17 10:38:22,834 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 10:38:22,836 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2724018e-3ec9-486d-b2e4-c81d2d8c381b/bin/uautomizer-J5u9QxTXDZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2724018e-3ec9-486d-b2e4-c81d2d8c381b/bin/uautomizer-J5u9QxTXDZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7c9f1b92adb9acc769d32e01935187ba88bc4e22a7a5cb13176ef92b5b4818de [2022-10-17 10:38:23,087 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 10:38:23,107 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 10:38:23,110 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 10:38:23,111 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 10:38:23,112 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 10:38:23,113 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2724018e-3ec9-486d-b2e4-c81d2d8c381b/bin/uautomizer-J5u9QxTXDZ/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i [2022-10-17 10:38:23,177 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2724018e-3ec9-486d-b2e4-c81d2d8c381b/bin/uautomizer-J5u9QxTXDZ/data/caf4fbe77/49016af99e614021b885f67801cdf53e/FLAG41a85415f [2022-10-17 10:38:24,052 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 10:38:24,052 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2724018e-3ec9-486d-b2e4-c81d2d8c381b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i [2022-10-17 10:38:24,095 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2724018e-3ec9-486d-b2e4-c81d2d8c381b/bin/uautomizer-J5u9QxTXDZ/data/caf4fbe77/49016af99e614021b885f67801cdf53e/FLAG41a85415f [2022-10-17 10:38:24,531 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2724018e-3ec9-486d-b2e4-c81d2d8c381b/bin/uautomizer-J5u9QxTXDZ/data/caf4fbe77/49016af99e614021b885f67801cdf53e [2022-10-17 10:38:24,533 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 10:38:24,535 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 10:38:24,536 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 10:38:24,536 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 10:38:24,547 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 10:38:24,548 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:38:24" (1/1) ... [2022-10-17 10:38:24,549 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58fcebc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:38:24, skipping insertion in model container [2022-10-17 10:38:24,549 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:38:24" (1/1) ... [2022-10-17 10:38:24,556 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 10:38:24,727 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 10:38:27,745 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2724018e-3ec9-486d-b2e4-c81d2d8c381b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i[315136,315149] [2022-10-17 10:38:27,748 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2724018e-3ec9-486d-b2e4-c81d2d8c381b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i[315305,315318] [2022-10-17 10:38:27,749 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2724018e-3ec9-486d-b2e4-c81d2d8c381b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i[315472,315485] [2022-10-17 10:38:27,750 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2724018e-3ec9-486d-b2e4-c81d2d8c381b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i[315640,315653] [2022-10-17 10:38:27,783 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:38:27,833 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 10:38:28,233 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2724018e-3ec9-486d-b2e4-c81d2d8c381b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i[315136,315149] [2022-10-17 10:38:28,233 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2724018e-3ec9-486d-b2e4-c81d2d8c381b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i[315305,315318] [2022-10-17 10:38:28,234 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2724018e-3ec9-486d-b2e4-c81d2d8c381b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i[315472,315485] [2022-10-17 10:38:28,234 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2724018e-3ec9-486d-b2e4-c81d2d8c381b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i[315640,315653] [2022-10-17 10:38:28,242 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:38:28,469 INFO L208 MainTranslator]: Completed translation [2022-10-17 10:38:28,469 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:38:28 WrapperNode [2022-10-17 10:38:28,470 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 10:38:28,471 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 10:38:28,471 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 10:38:28,471 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 10:38:28,478 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:38:28" (1/1) ... [2022-10-17 10:38:28,596 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:38:28" (1/1) ... [2022-10-17 10:38:28,783 INFO L138 Inliner]: procedures = 430, calls = 1707, calls flagged for inlining = 201, calls inlined = 185, statements flattened = 4359 [2022-10-17 10:38:28,784 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 10:38:28,784 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 10:38:28,785 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 10:38:28,785 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 10:38:28,794 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:38:28" (1/1) ... [2022-10-17 10:38:28,795 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:38:28" (1/1) ... [2022-10-17 10:38:28,857 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:38:28" (1/1) ... [2022-10-17 10:38:28,857 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:38:28" (1/1) ... [2022-10-17 10:38:28,978 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:38:28" (1/1) ... [2022-10-17 10:38:29,010 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:38:28" (1/1) ... [2022-10-17 10:38:29,033 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:38:28" (1/1) ... [2022-10-17 10:38:29,059 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:38:28" (1/1) ... [2022-10-17 10:38:29,097 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 10:38:29,098 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 10:38:29,099 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 10:38:29,101 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 10:38:29,102 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:38:28" (1/1) ... [2022-10-17 10:38:29,109 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:38:29,122 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2724018e-3ec9-486d-b2e4-c81d2d8c381b/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:38:29,139 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2724018e-3ec9-486d-b2e4-c81d2d8c381b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-17 10:38:29,163 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2724018e-3ec9-486d-b2e4-c81d2d8c381b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-17 10:38:29,194 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_write [2022-10-17 10:38:29,194 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_write [2022-10-17 10:38:29,195 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-10-17 10:38:29,195 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-10-17 10:38:29,195 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-10-17 10:38:29,195 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-10-17 10:38:29,195 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-10-17 10:38:29,195 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-10-17 10:38:29,195 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-10-17 10:38:29,195 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-10-17 10:38:29,196 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-10-17 10:38:29,196 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-10-17 10:38:29,196 INFO L130 BoogieDeclarations]: Found specification of procedure init_tfdlist [2022-10-17 10:38:29,196 INFO L138 BoogieDeclarations]: Found implementation of procedure init_tfdlist [2022-10-17 10:38:29,196 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-10-17 10:38:29,196 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-10-17 10:38:29,196 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-10-17 10:38:29,196 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-10-17 10:38:29,197 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite16 [2022-10-17 10:38:29,197 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite16 [2022-10-17 10:38:29,197 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_set_multicast_list [2022-10-17 10:38:29,197 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_set_multicast_list [2022-10-17 10:38:29,197 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite8 [2022-10-17 10:38:29,197 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite8 [2022-10-17 10:38:29,197 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2022-10-17 10:38:29,198 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2022-10-17 10:38:29,198 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-10-17 10:38:29,198 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-10-17 10:38:29,198 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_rx_clear [2022-10-17 10:38:29,198 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_rx_clear [2022-10-17 10:38:29,198 INFO L130 BoogieDeclarations]: Found specification of procedure skb_checksum_none_assert [2022-10-17 10:38:29,199 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_checksum_none_assert [2022-10-17 10:38:29,199 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-10-17 10:38:29,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-10-17 10:38:29,199 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2022-10-17 10:38:29,199 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2022-10-17 10:38:29,199 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2022-10-17 10:38:29,199 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2022-10-17 10:38:29,200 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-10-17 10:38:29,200 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-10-17 10:38:29,200 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-10-17 10:38:29,200 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-10-17 10:38:29,200 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-10-17 10:38:29,200 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-10-17 10:38:29,200 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-17 10:38:29,201 INFO L130 BoogieDeclarations]: Found specification of procedure read_phy_bit [2022-10-17 10:38:29,201 INFO L138 BoogieDeclarations]: Found implementation of procedure read_phy_bit [2022-10-17 10:38:29,201 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_remove [2022-10-17 10:38:29,201 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_remove [2022-10-17 10:38:29,201 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-10-17 10:38:29,202 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-10-17 10:38:29,203 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-10-17 10:38:29,203 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-10-17 10:38:29,204 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-10-17 10:38:29,204 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_open [2022-10-17 10:38:29,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_open [2022-10-17 10:38:29,205 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-10-17 10:38:29,205 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-10-17 10:38:29,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-10-17 10:38:29,205 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-17 10:38:29,205 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-10-17 10:38:29,205 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-10-17 10:38:29,206 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-10-17 10:38:29,206 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-10-17 10:38:29,206 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-10-17 10:38:29,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-10-17 10:38:29,206 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-10-17 10:38:29,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-10-17 10:38:29,206 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-10-17 10:38:29,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-10-17 10:38:29,207 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2022-10-17 10:38:29,207 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2022-10-17 10:38:29,207 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-10-17 10:38:29,207 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-10-17 10:38:29,208 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-10-17 10:38:29,208 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-10-17 10:38:29,208 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_get_stats [2022-10-17 10:38:29,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_get_stats [2022-10-17 10:38:29,208 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-10-17 10:38:29,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-10-17 10:38:29,208 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_rxrestore [2022-10-17 10:38:29,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_rxrestore [2022-10-17 10:38:29,209 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-17 10:38:29,209 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-10-17 10:38:29,209 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-10-17 10:38:29,210 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-10-17 10:38:29,210 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-10-17 10:38:29,210 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 10:38:29,210 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-10-17 10:38:29,210 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-10-17 10:38:29,211 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-10-17 10:38:29,211 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-10-17 10:38:29,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-17 10:38:29,211 INFO L130 BoogieDeclarations]: Found specification of procedure ioread16 [2022-10-17 10:38:29,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread16 [2022-10-17 10:38:29,211 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-10-17 10:38:29,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-10-17 10:38:29,212 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_ioaddr [2022-10-17 10:38:29,212 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_ioaddr [2022-10-17 10:38:29,212 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-10-17 10:38:29,212 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-10-17 10:38:29,212 INFO L130 BoogieDeclarations]: Found specification of procedure ioread8 [2022-10-17 10:38:29,212 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread8 [2022-10-17 10:38:29,212 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-10-17 10:38:29,212 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-10-17 10:38:29,213 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-10-17 10:38:29,213 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-10-17 10:38:29,213 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-10-17 10:38:29,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-10-17 10:38:29,213 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_get_rxbuff [2022-10-17 10:38:29,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_get_rxbuff [2022-10-17 10:38:29,214 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_write_phy_ctl [2022-10-17 10:38:29,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_write_phy_ctl [2022-10-17 10:38:29,217 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_delayed_work [2022-10-17 10:38:29,217 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_delayed_work [2022-10-17 10:38:29,218 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-10-17 10:38:29,219 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-10-17 10:38:29,219 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_drive_phy_ctl_low_high [2022-10-17 10:38:29,219 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_drive_phy_ctl_low_high [2022-10-17 10:38:29,219 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2022-10-17 10:38:29,220 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2022-10-17 10:38:29,220 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 10:38:29,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 10:38:29,226 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_txfree [2022-10-17 10:38:29,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_txfree [2022-10-17 10:38:29,226 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-10-17 10:38:29,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-10-17 10:38:29,227 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-10-17 10:38:29,227 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-10-17 10:38:29,227 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_tx_timeout [2022-10-17 10:38:29,227 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_tx_timeout [2022-10-17 10:38:29,227 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-10-17 10:38:29,227 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-10-17 10:38:29,227 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-10-17 10:38:29,227 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-10-17 10:38:29,227 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-10-17 10:38:29,227 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-10-17 10:38:29,228 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-10-17 10:38:29,228 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-10-17 10:38:29,228 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-10-17 10:38:29,228 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-10-17 10:38:29,228 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_tx_clear [2022-10-17 10:38:29,228 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_tx_clear [2022-10-17 10:38:29,228 INFO L130 BoogieDeclarations]: Found specification of procedure read_eeprom [2022-10-17 10:38:29,228 INFO L138 BoogieDeclarations]: Found implementation of procedure read_eeprom [2022-10-17 10:38:29,228 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-17 10:38:29,229 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-10-17 10:38:29,229 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-10-17 10:38:29,229 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-17 10:38:29,229 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_ipg_nic_private [2022-10-17 10:38:29,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_ipg_nic_private [2022-10-17 10:38:29,229 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_rx_free_skb [2022-10-17 10:38:29,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_rx_free_skb [2022-10-17 10:38:29,229 INFO L130 BoogieDeclarations]: Found specification of procedure send_three_state [2022-10-17 10:38:29,229 INFO L138 BoogieDeclarations]: Found implementation of procedure send_three_state [2022-10-17 10:38:29,229 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-10-17 10:38:29,230 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-10-17 10:38:29,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-10-17 10:38:29,230 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-10-17 10:38:29,230 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-10-17 10:38:29,230 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-10-17 10:38:29,230 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-10-17 10:38:29,230 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-10-17 10:38:29,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-10-17 10:38:29,230 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2022-10-17 10:38:29,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2022-10-17 10:38:29,231 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2022-10-17 10:38:29,231 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2022-10-17 10:38:29,231 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_io_config [2022-10-17 10:38:29,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_io_config [2022-10-17 10:38:29,231 INFO L130 BoogieDeclarations]: Found specification of procedure init_rfdlist [2022-10-17 10:38:29,231 INFO L138 BoogieDeclarations]: Found implementation of procedure init_rfdlist [2022-10-17 10:38:29,231 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2022-10-17 10:38:29,231 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2022-10-17 10:38:29,231 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-10-17 10:38:29,232 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-10-17 10:38:29,232 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-10-17 10:38:29,232 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-10-17 10:38:29,232 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-10-17 10:38:29,232 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-10-17 10:38:29,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-17 10:38:29,232 INFO L130 BoogieDeclarations]: Found specification of procedure eth_type_trans [2022-10-17 10:38:29,232 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_type_trans [2022-10-17 10:38:29,232 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-10-17 10:38:29,233 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-10-17 10:38:29,233 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nway_reset [2022-10-17 10:38:29,233 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nway_reset [2022-10-17 10:38:29,233 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_stop [2022-10-17 10:38:29,233 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_stop [2022-10-17 10:38:29,233 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_config_autoneg [2022-10-17 10:38:29,233 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_config_autoneg [2022-10-17 10:38:29,233 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_ipg_pci_driver_exit_13_2 [2022-10-17 10:38:29,233 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_ipg_pci_driver_exit_13_2 [2022-10-17 10:38:29,233 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_ipg_nic_private [2022-10-17 10:38:29,234 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_ipg_nic_private [2022-10-17 10:38:29,234 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-10-17 10:38:29,234 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-10-17 10:38:29,234 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_reset [2022-10-17 10:38:29,234 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_reset [2022-10-17 10:38:29,234 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2022-10-17 10:38:29,234 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2022-10-17 10:38:29,234 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2022-10-17 10:38:29,234 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2022-10-17 10:38:29,235 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2022-10-17 10:38:29,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 10:38:29,235 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_rx_check_error [2022-10-17 10:38:29,235 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_rx_check_error [2022-10-17 10:38:29,235 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-10-17 10:38:29,235 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-10-17 10:38:30,267 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 10:38:30,271 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 10:38:31,328 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-10-17 10:38:37,924 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-10-17 10:38:38,086 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 10:38:38,116 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 10:38:38,116 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-10-17 10:38:38,121 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:38:38 BoogieIcfgContainer [2022-10-17 10:38:38,121 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 10:38:38,126 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-17 10:38:38,126 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-17 10:38:38,129 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-17 10:38:38,130 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 10:38:24" (1/3) ... [2022-10-17 10:38:38,130 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43704cc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:38:38, skipping insertion in model container [2022-10-17 10:38:38,130 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:38:28" (2/3) ... [2022-10-17 10:38:38,131 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43704cc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:38:38, skipping insertion in model container [2022-10-17 10:38:38,131 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:38:38" (3/3) ... [2022-10-17 10:38:38,135 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i [2022-10-17 10:38:38,154 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-17 10:38:38,155 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-10-17 10:38:38,282 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-17 10:38:38,292 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3c3538d5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-17 10:38:38,292 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-10-17 10:38:38,305 INFO L276 IsEmpty]: Start isEmpty. Operand has 1854 states, 1301 states have (on average 1.3374327440430438) internal successors, (1740), 1336 states have internal predecessors, (1740), 457 states have call successors, (457), 96 states have call predecessors, (457), 95 states have return successors, (451), 448 states have call predecessors, (451), 451 states have call successors, (451) [2022-10-17 10:38:38,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-10-17 10:38:38,330 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:38:38,331 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:38:38,331 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-10-17 10:38:38,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:38:38,336 INFO L85 PathProgramCache]: Analyzing trace with hash 1489934111, now seen corresponding path program 1 times [2022-10-17 10:38:38,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:38:38,344 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262828204] [2022-10-17 10:38:38,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:38:38,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:38:38,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:39,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-17 10:38:39,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:39,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:38:39,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:39,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-17 10:38:39,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:39,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:38:39,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:39,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-17 10:38:39,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:39,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:38:39,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:39,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-10-17 10:38:39,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:39,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:38:39,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:39,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-10-17 10:38:39,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:39,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:38:39,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:39,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-10-17 10:38:39,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:39,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:38:39,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:39,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-10-17 10:38:39,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:39,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:38:39,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:39,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-10-17 10:38:39,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:39,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:38:39,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:39,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-10-17 10:38:39,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:39,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-10-17 10:38:39,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:39,331 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2022-10-17 10:38:39,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:38:39,332 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1262828204] [2022-10-17 10:38:39,333 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1262828204] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:38:39,333 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:38:39,333 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-17 10:38:39,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106070791] [2022-10-17 10:38:39,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:38:39,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-17 10:38:39,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:38:39,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-17 10:38:39,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-17 10:38:39,375 INFO L87 Difference]: Start difference. First operand has 1854 states, 1301 states have (on average 1.3374327440430438) internal successors, (1740), 1336 states have internal predecessors, (1740), 457 states have call successors, (457), 96 states have call predecessors, (457), 95 states have return successors, (451), 448 states have call predecessors, (451), 451 states have call successors, (451) Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-10-17 10:38:45,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:38:45,733 INFO L93 Difference]: Finished difference Result 5558 states and 8172 transitions. [2022-10-17 10:38:45,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-17 10:38:45,736 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 116 [2022-10-17 10:38:45,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:38:45,800 INFO L225 Difference]: With dead ends: 5558 [2022-10-17 10:38:45,800 INFO L226 Difference]: Without dead ends: 3715 [2022-10-17 10:38:45,822 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-17 10:38:45,825 INFO L413 NwaCegarLoop]: 2623 mSDtfsCounter, 3469 mSDsluCounter, 2225 mSDsCounter, 0 mSdLazyCounter, 2136 mSolverCounterSat, 1414 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3876 SdHoareTripleChecker+Valid, 4848 SdHoareTripleChecker+Invalid, 3550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1414 IncrementalHoareTripleChecker+Valid, 2136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-10-17 10:38:45,826 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3876 Valid, 4848 Invalid, 3550 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1414 Valid, 2136 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2022-10-17 10:38:45,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3715 states. [2022-10-17 10:38:46,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3715 to 3567. [2022-10-17 10:38:46,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3567 states, 2520 states have (on average 1.2575396825396825) internal successors, (3169), 2587 states have internal predecessors, (3169), 858 states have call successors, (858), 187 states have call predecessors, (858), 186 states have return successors, (854), 848 states have call predecessors, (854), 854 states have call successors, (854) [2022-10-17 10:38:46,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3567 states to 3567 states and 4881 transitions. [2022-10-17 10:38:46,208 INFO L78 Accepts]: Start accepts. Automaton has 3567 states and 4881 transitions. Word has length 116 [2022-10-17 10:38:46,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:38:46,210 INFO L495 AbstractCegarLoop]: Abstraction has 3567 states and 4881 transitions. [2022-10-17 10:38:46,210 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-10-17 10:38:46,210 INFO L276 IsEmpty]: Start isEmpty. Operand 3567 states and 4881 transitions. [2022-10-17 10:38:46,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-10-17 10:38:46,217 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:38:46,217 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:38:46,218 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-17 10:38:46,218 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-10-17 10:38:46,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:38:46,219 INFO L85 PathProgramCache]: Analyzing trace with hash 2038741352, now seen corresponding path program 1 times [2022-10-17 10:38:46,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:38:46,219 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129770781] [2022-10-17 10:38:46,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:38:46,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:38:46,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:46,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-17 10:38:46,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:46,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:38:46,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:46,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-17 10:38:46,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:46,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:38:46,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:46,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-17 10:38:46,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:46,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:38:46,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:46,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-10-17 10:38:46,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:46,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:38:46,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:46,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-10-17 10:38:46,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:46,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:38:46,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:46,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-10-17 10:38:46,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:46,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:38:46,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:46,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-10-17 10:38:46,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:46,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:38:46,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:46,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-10-17 10:38:46,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:46,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:38:46,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:46,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-10-17 10:38:46,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:46,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-10-17 10:38:46,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:46,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-10-17 10:38:46,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:46,612 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2022-10-17 10:38:46,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:38:46,613 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [129770781] [2022-10-17 10:38:46,613 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [129770781] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:38:46,614 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:38:46,614 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-17 10:38:46,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766515629] [2022-10-17 10:38:46,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:38:46,616 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-17 10:38:46,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:38:46,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-17 10:38:46,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-17 10:38:46,617 INFO L87 Difference]: Start difference. First operand 3567 states and 4881 transitions. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-10-17 10:38:52,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:38:52,094 INFO L93 Difference]: Finished difference Result 10097 states and 13843 transitions. [2022-10-17 10:38:52,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-17 10:38:52,095 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 120 [2022-10-17 10:38:52,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:38:52,156 INFO L225 Difference]: With dead ends: 10097 [2022-10-17 10:38:52,156 INFO L226 Difference]: Without dead ends: 6551 [2022-10-17 10:38:52,174 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-17 10:38:52,176 INFO L413 NwaCegarLoop]: 2694 mSDtfsCounter, 2775 mSDsluCounter, 2241 mSDsCounter, 0 mSdLazyCounter, 2016 mSolverCounterSat, 1328 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3109 SdHoareTripleChecker+Valid, 4935 SdHoareTripleChecker+Invalid, 3344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1328 IncrementalHoareTripleChecker+Valid, 2016 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-10-17 10:38:52,177 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3109 Valid, 4935 Invalid, 3344 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1328 Valid, 2016 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2022-10-17 10:38:52,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6551 states. [2022-10-17 10:38:52,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6551 to 6264. [2022-10-17 10:38:52,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6264 states, 4413 states have (on average 1.2454112848402448) internal successors, (5496), 4527 states have internal predecessors, (5496), 1503 states have call successors, (1503), 352 states have call predecessors, (1503), 345 states have return successors, (1519), 1470 states have call predecessors, (1519), 1499 states have call successors, (1519) [2022-10-17 10:38:52,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6264 states to 6264 states and 8518 transitions. [2022-10-17 10:38:52,559 INFO L78 Accepts]: Start accepts. Automaton has 6264 states and 8518 transitions. Word has length 120 [2022-10-17 10:38:52,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:38:52,560 INFO L495 AbstractCegarLoop]: Abstraction has 6264 states and 8518 transitions. [2022-10-17 10:38:52,560 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-10-17 10:38:52,560 INFO L276 IsEmpty]: Start isEmpty. Operand 6264 states and 8518 transitions. [2022-10-17 10:38:52,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-10-17 10:38:52,570 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:38:52,570 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 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] [2022-10-17 10:38:52,571 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-17 10:38:52,571 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-10-17 10:38:52,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:38:52,572 INFO L85 PathProgramCache]: Analyzing trace with hash 78808683, now seen corresponding path program 1 times [2022-10-17 10:38:52,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:38:52,572 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241210970] [2022-10-17 10:38:52,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:38:52,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:38:52,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:52,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-17 10:38:52,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:52,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:38:52,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:52,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-17 10:38:52,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:52,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:38:52,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:52,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-17 10:38:52,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:52,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:38:52,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:52,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-10-17 10:38:52,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:52,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:38:52,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:53,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-10-17 10:38:53,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:53,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:38:53,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:53,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-10-17 10:38:53,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:53,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:38:53,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:53,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-10-17 10:38:53,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:53,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:38:53,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:53,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-10-17 10:38:53,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:53,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:38:53,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:53,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-10-17 10:38:53,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:53,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-10-17 10:38:53,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:53,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-10-17 10:38:53,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:53,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:38:53,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:53,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:38:53,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:53,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-17 10:38:53,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:53,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-17 10:38:53,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:53,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-17 10:38:53,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:53,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-10-17 10:38:53,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:53,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-10-17 10:38:53,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:53,187 INFO L134 CoverageAnalysis]: Checked inductivity of 285 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 285 trivial. 0 not checked. [2022-10-17 10:38:53,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:38:53,187 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241210970] [2022-10-17 10:38:53,188 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1241210970] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:38:53,188 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:38:53,188 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-17 10:38:53,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772075873] [2022-10-17 10:38:53,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:38:53,191 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-17 10:38:53,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:38:53,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-17 10:38:53,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-17 10:38:53,194 INFO L87 Difference]: Start difference. First operand 6264 states and 8518 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (22), 4 states have call predecessors, (22), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19)