./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-tun.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_16fedae5-575c-42d5-bdd2-9338b7156dc4/bin/uautomizer-J5u9QxTXDZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fedae5-575c-42d5-bdd2-9338b7156dc4/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_16fedae5-575c-42d5-bdd2-9338b7156dc4/bin/uautomizer-J5u9QxTXDZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fedae5-575c-42d5-bdd2-9338b7156dc4/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-tun.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fedae5-575c-42d5-bdd2-9338b7156dc4/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_16fedae5-575c-42d5-bdd2-9338b7156dc4/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 97cecdf2f398250e9c44f19d8d35ed7fcac528daa12758af85552fae0658b596 --- 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 10:30:06,858 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 10:30:06,861 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 10:30:06,900 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 10:30:06,901 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 10:30:06,902 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 10:30:06,904 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 10:30:06,906 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 10:30:06,909 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 10:30:06,910 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 10:30:06,911 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 10:30:06,913 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 10:30:06,913 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 10:30:06,915 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 10:30:06,916 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 10:30:06,918 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 10:30:06,919 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 10:30:06,920 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 10:30:06,923 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 10:30:06,926 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 10:30:06,928 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 10:30:06,929 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 10:30:06,931 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 10:30:06,932 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 10:30:06,937 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 10:30:06,949 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 10:30:06,950 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 10:30:06,951 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 10:30:06,953 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 10:30:06,954 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 10:30:06,955 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 10:30:06,956 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 10:30:06,957 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 10:30:06,959 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 10:30:06,962 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 10:30:06,962 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 10:30:06,963 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 10:30:06,963 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 10:30:06,964 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 10:30:06,964 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 10:30:06,965 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 10:30:06,966 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fedae5-575c-42d5-bdd2-9338b7156dc4/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-10-17 10:30:07,009 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 10:30:07,012 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 10:30:07,012 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 10:30:07,013 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 10:30:07,014 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 10:30:07,014 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-17 10:30:07,014 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 10:30:07,015 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 10:30:07,015 INFO L138 SettingsManager]: * Use SBE=true [2022-10-17 10:30:07,015 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 10:30:07,016 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 10:30:07,017 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 10:30:07,017 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 10:30:07,017 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 10:30:07,017 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 10:30:07,018 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 10:30:07,018 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 10:30:07,018 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 10:30:07,018 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 10:30:07,018 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-17 10:30:07,019 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-17 10:30:07,019 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:30:07,019 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 10:30:07,019 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 10:30:07,020 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 10:30:07,026 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-17 10:30:07,028 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 10:30:07,028 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-17 10:30:07,029 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-10-17 10:30:07,029 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 10:30:07,029 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_16fedae5-575c-42d5-bdd2-9338b7156dc4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fedae5-575c-42d5-bdd2-9338b7156dc4/bin/uautomizer-J5u9QxTXDZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 97cecdf2f398250e9c44f19d8d35ed7fcac528daa12758af85552fae0658b596 [2022-10-17 10:30:07,284 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 10:30:07,306 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 10:30:07,308 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 10:30:07,310 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 10:30:07,311 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 10:30:07,312 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fedae5-575c-42d5-bdd2-9338b7156dc4/bin/uautomizer-J5u9QxTXDZ/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-tun.cil.i [2022-10-17 10:30:07,393 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fedae5-575c-42d5-bdd2-9338b7156dc4/bin/uautomizer-J5u9QxTXDZ/data/c9bdc908c/5dfd2d3ee1424fa292aa6f53bc58f709/FLAG34a2d1c3a [2022-10-17 10:30:08,317 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 10:30:08,318 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fedae5-575c-42d5-bdd2-9338b7156dc4/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-tun.cil.i [2022-10-17 10:30:08,381 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fedae5-575c-42d5-bdd2-9338b7156dc4/bin/uautomizer-J5u9QxTXDZ/data/c9bdc908c/5dfd2d3ee1424fa292aa6f53bc58f709/FLAG34a2d1c3a [2022-10-17 10:30:08,705 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fedae5-575c-42d5-bdd2-9338b7156dc4/bin/uautomizer-J5u9QxTXDZ/data/c9bdc908c/5dfd2d3ee1424fa292aa6f53bc58f709 [2022-10-17 10:30:08,707 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 10:30:08,709 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 10:30:08,710 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 10:30:08,711 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 10:30:08,714 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 10:30:08,715 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:30:08" (1/1) ... [2022-10-17 10:30:08,716 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@316ddaa0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:30:08, skipping insertion in model container [2022-10-17 10:30:08,716 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:30:08" (1/1) ... [2022-10-17 10:30:08,723 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 10:30:08,921 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 10:30:13,372 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_16fedae5-575c-42d5-bdd2-9338b7156dc4/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-tun.cil.i[428896,428909] [2022-10-17 10:30:13,375 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_16fedae5-575c-42d5-bdd2-9338b7156dc4/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-tun.cil.i[429065,429078] [2022-10-17 10:30:13,376 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_16fedae5-575c-42d5-bdd2-9338b7156dc4/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-tun.cil.i[429232,429245] [2022-10-17 10:30:13,377 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_16fedae5-575c-42d5-bdd2-9338b7156dc4/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-tun.cil.i[429400,429413] [2022-10-17 10:30:13,411 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:30:13,475 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 10:30:14,085 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_16fedae5-575c-42d5-bdd2-9338b7156dc4/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-tun.cil.i[428896,428909] [2022-10-17 10:30:14,088 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_16fedae5-575c-42d5-bdd2-9338b7156dc4/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-tun.cil.i[429065,429078] [2022-10-17 10:30:14,088 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_16fedae5-575c-42d5-bdd2-9338b7156dc4/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-tun.cil.i[429232,429245] [2022-10-17 10:30:14,089 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_16fedae5-575c-42d5-bdd2-9338b7156dc4/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-tun.cil.i[429400,429413] [2022-10-17 10:30:14,105 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:30:14,383 INFO L208 MainTranslator]: Completed translation [2022-10-17 10:30:14,384 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:30:14 WrapperNode [2022-10-17 10:30:14,384 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 10:30:14,385 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 10:30:14,386 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 10:30:14,386 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 10:30:14,393 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:30:14" (1/1) ... [2022-10-17 10:30:14,539 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:30:14" (1/1) ... [2022-10-17 10:30:14,803 INFO L138 Inliner]: procedures = 614, calls = 2616, calls flagged for inlining = 322, calls inlined = 255, statements flattened = 7332 [2022-10-17 10:30:14,803 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 10:30:14,804 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 10:30:14,805 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 10:30:14,805 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 10:30:14,815 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:30:14" (1/1) ... [2022-10-17 10:30:14,815 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:30:14" (1/1) ... [2022-10-17 10:30:14,845 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:30:14" (1/1) ... [2022-10-17 10:30:14,846 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:30:14" (1/1) ... [2022-10-17 10:30:14,991 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:30:14" (1/1) ... [2022-10-17 10:30:15,035 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:30:14" (1/1) ... [2022-10-17 10:30:15,078 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:30:14" (1/1) ... [2022-10-17 10:30:15,106 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:30:14" (1/1) ... [2022-10-17 10:30:15,152 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 10:30:15,153 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 10:30:15,154 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 10:30:15,156 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 10:30:15,157 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:30:14" (1/1) ... [2022-10-17 10:30:15,164 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:30:15,175 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fedae5-575c-42d5-bdd2-9338b7156dc4/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:30:15,191 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fedae5-575c-42d5-bdd2-9338b7156dc4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-17 10:30:15,216 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fedae5-575c-42d5-bdd2-9338b7156dc4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-17 10:30:15,236 INFO L130 BoogieDeclarations]: Found specification of procedure tun_get [2022-10-17 10:30:15,236 INFO L138 BoogieDeclarations]: Found implementation of procedure tun_get [2022-10-17 10:30:15,237 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2022-10-17 10:30:15,237 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2022-10-17 10:30:15,237 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-10-17 10:30:15,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-10-17 10:30:15,237 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-10-17 10:30:15,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-10-17 10:30:15,238 INFO L130 BoogieDeclarations]: Found specification of procedure skb_get_hash [2022-10-17 10:30:15,238 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_get_hash [2022-10-17 10:30:15,238 INFO L130 BoogieDeclarations]: Found specification of procedure tun_attach [2022-10-17 10:30:15,238 INFO L138 BoogieDeclarations]: Found implementation of procedure tun_attach [2022-10-17 10:30:15,238 INFO L130 BoogieDeclarations]: Found specification of procedure ns_capable [2022-10-17 10:30:15,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_capable [2022-10-17 10:30:15,239 INFO L130 BoogieDeclarations]: Found specification of procedure crc32_le [2022-10-17 10:30:15,239 INFO L138 BoogieDeclarations]: Found implementation of procedure crc32_le [2022-10-17 10:30:15,239 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-10-17 10:30:15,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-10-17 10:30:15,239 INFO L130 BoogieDeclarations]: Found specification of procedure gid_valid [2022-10-17 10:30:15,239 INFO L138 BoogieDeclarations]: Found implementation of procedure gid_valid [2022-10-17 10:30:15,240 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2022-10-17 10:30:15,240 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2022-10-17 10:30:15,240 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-10-17 10:30:15,240 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-10-17 10:30:15,240 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-10-17 10:30:15,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-10-17 10:30:15,241 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-17 10:30:15,241 INFO L130 BoogieDeclarations]: Found specification of procedure sock_writeable [2022-10-17 10:30:15,241 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_writeable [2022-10-17 10:30:15,241 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-10-17 10:30:15,241 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-10-17 10:30:15,241 INFO L130 BoogieDeclarations]: Found specification of procedure iov_length [2022-10-17 10:30:15,242 INFO L138 BoogieDeclarations]: Found implementation of procedure iov_length [2022-10-17 10:30:15,242 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-10-17 10:30:15,242 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-10-17 10:30:15,242 INFO L130 BoogieDeclarations]: Found specification of procedure sock_put [2022-10-17 10:30:15,242 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_put [2022-10-17 10:30:15,242 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-10-17 10:30:15,243 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-10-17 10:30:15,243 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-10-17 10:30:15,243 INFO L130 BoogieDeclarations]: Found specification of procedure tun_get_iff [2022-10-17 10:30:15,243 INFO L138 BoogieDeclarations]: Found implementation of procedure tun_get_iff [2022-10-17 10:30:15,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-10-17 10:30:15,244 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_76 [2022-10-17 10:30:15,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_76 [2022-10-17 10:30:15,244 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-10-17 10:30:15,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-10-17 10:30:15,245 INFO L130 BoogieDeclarations]: Found specification of procedure __tun_detach [2022-10-17 10:30:15,245 INFO L138 BoogieDeclarations]: Found implementation of procedure __tun_detach [2022-10-17 10:30:15,300 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-17 10:30:15,300 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-10-17 10:30:15,300 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-10-17 10:30:15,300 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_tun_cleanup_15_2 [2022-10-17 10:30:15,300 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_tun_cleanup_15_2 [2022-10-17 10:30:15,301 INFO L130 BoogieDeclarations]: Found specification of procedure tun_detach_all [2022-10-17 10:30:15,301 INFO L138 BoogieDeclarations]: Found implementation of procedure tun_detach_all [2022-10-17 10:30:15,301 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_is_watching [2022-10-17 10:30:15,301 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_is_watching [2022-10-17 10:30:15,301 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_purge [2022-10-17 10:30:15,301 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_purge [2022-10-17 10:30:15,301 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-10-17 10:30:15,301 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-10-17 10:30:15,301 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock [2022-10-17 10:30:15,302 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock [2022-10-17 10:30:15,302 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-10-17 10:30:15,302 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-10-17 10:30:15,302 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-17 10:30:15,302 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-10-17 10:30:15,302 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-10-17 10:30:15,302 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2022-10-17 10:30:15,302 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2022-10-17 10:30:15,302 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2022-10-17 10:30:15,302 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2022-10-17 10:30:15,303 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 10:30:15,303 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-10-17 10:30:15,303 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-10-17 10:30:15,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-17 10:30:15,303 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-10-17 10:30:15,303 INFO L130 BoogieDeclarations]: Found specification of procedure read_pnet [2022-10-17 10:30:15,303 INFO L138 BoogieDeclarations]: Found implementation of procedure read_pnet [2022-10-17 10:30:15,303 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2022-10-17 10:30:15,303 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2022-10-17 10:30:15,303 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-10-17 10:30:15,304 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-10-17 10:30:15,304 INFO L130 BoogieDeclarations]: Found specification of procedure tun_setup [2022-10-17 10:30:15,304 INFO L138 BoogieDeclarations]: Found implementation of procedure tun_setup [2022-10-17 10:30:15,304 INFO L130 BoogieDeclarations]: Found specification of procedure skb_set_transport_header [2022-10-17 10:30:15,304 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_set_transport_header [2022-10-17 10:30:15,304 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-10-17 10:30:15,304 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-10-17 10:30:15,304 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-10-17 10:30:15,304 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-10-17 10:30:15,304 INFO L130 BoogieDeclarations]: Found specification of procedure tun_flow_find [2022-10-17 10:30:15,305 INFO L138 BoogieDeclarations]: Found implementation of procedure tun_flow_find [2022-10-17 10:30:15,305 INFO L130 BoogieDeclarations]: Found specification of procedure tun_flow_uninit [2022-10-17 10:30:15,305 INFO L138 BoogieDeclarations]: Found implementation of procedure tun_flow_uninit [2022-10-17 10:30:15,305 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-10-17 10:30:15,305 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-10-17 10:30:15,308 INFO L130 BoogieDeclarations]: Found specification of procedure synchronize_net [2022-10-17 10:30:15,308 INFO L138 BoogieDeclarations]: Found implementation of procedure synchronize_net [2022-10-17 10:30:15,308 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 10:30:15,308 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 10:30:15,308 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_toiovecend [2022-10-17 10:30:15,309 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_toiovecend [2022-10-17 10:30:15,309 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2022-10-17 10:30:15,309 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2022-10-17 10:30:15,309 INFO L130 BoogieDeclarations]: Found specification of procedure tun_flags [2022-10-17 10:30:15,310 INFO L138 BoogieDeclarations]: Found implementation of procedure tun_flags [2022-10-17 10:30:15,310 INFO L130 BoogieDeclarations]: Found specification of procedure __kuid_val [2022-10-17 10:30:15,310 INFO L138 BoogieDeclarations]: Found implementation of procedure __kuid_val [2022-10-17 10:30:15,310 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-10-17 10:30:15,311 INFO L130 BoogieDeclarations]: Found specification of procedure uid_valid [2022-10-17 10:30:15,311 INFO L138 BoogieDeclarations]: Found implementation of procedure uid_valid [2022-10-17 10:30:15,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-10-17 10:30:15,315 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-10-17 10:30:15,315 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-10-17 10:30:15,315 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-10-17 10:30:15,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-10-17 10:30:15,317 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-10-17 10:30:15,317 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-10-17 10:30:15,317 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2022-10-17 10:30:15,318 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2022-10-17 10:30:15,319 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2022-10-17 10:30:15,319 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rtnl_is_held [2022-10-17 10:30:15,319 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rtnl_is_held [2022-10-17 10:30:15,319 INFO L130 BoogieDeclarations]: Found specification of procedure device_create_file [2022-10-17 10:30:15,320 INFO L138 BoogieDeclarations]: Found implementation of procedure device_create_file [2022-10-17 10:30:15,320 INFO L130 BoogieDeclarations]: Found specification of procedure bitrev32 [2022-10-17 10:30:15,320 INFO L138 BoogieDeclarations]: Found implementation of procedure bitrev32 [2022-10-17 10:30:15,320 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-10-17 10:30:15,320 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-10-17 10:30:15,321 INFO L130 BoogieDeclarations]: Found specification of procedure __tun_get [2022-10-17 10:30:15,321 INFO L138 BoogieDeclarations]: Found implementation of procedure __tun_get [2022-10-17 10:30:15,321 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2022-10-17 10:30:15,321 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2022-10-17 10:30:15,321 INFO L130 BoogieDeclarations]: Found specification of procedure sk_attach_filter [2022-10-17 10:30:15,321 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_attach_filter [2022-10-17 10:30:15,322 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-17 10:30:15,322 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-10-17 10:30:15,322 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-10-17 10:30:15,322 INFO L130 BoogieDeclarations]: Found specification of procedure module_put [2022-10-17 10:30:15,322 INFO L138 BoogieDeclarations]: Found implementation of procedure module_put [2022-10-17 10:30:15,323 INFO L130 BoogieDeclarations]: Found specification of procedure put_net [2022-10-17 10:30:15,323 INFO L138 BoogieDeclarations]: Found implementation of procedure put_net [2022-10-17 10:30:15,323 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-17 10:30:15,323 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_datagram_const_iovec [2022-10-17 10:30:15,323 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_datagram_const_iovec [2022-10-17 10:30:15,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-10-17 10:30:15,324 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-10-17 10:30:15,324 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-10-17 10:30:15,324 INFO L130 BoogieDeclarations]: Found specification of procedure tun_get_user [2022-10-17 10:30:15,324 INFO L138 BoogieDeclarations]: Found implementation of procedure tun_get_user [2022-10-17 10:30:15,324 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2022-10-17 10:30:15,324 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2022-10-17 10:30:15,324 INFO L130 BoogieDeclarations]: Found specification of procedure __tun_chr_ioctl [2022-10-17 10:30:15,325 INFO L138 BoogieDeclarations]: Found implementation of procedure __tun_chr_ioctl [2022-10-17 10:30:15,325 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-10-17 10:30:15,325 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-10-17 10:30:15,325 INFO L130 BoogieDeclarations]: Found specification of procedure tun_flow_delete [2022-10-17 10:30:15,325 INFO L138 BoogieDeclarations]: Found implementation of procedure tun_flow_delete [2022-10-17 10:30:15,325 INFO L130 BoogieDeclarations]: Found specification of procedure sock_rps_reset_flow_hash [2022-10-17 10:30:15,326 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_rps_reset_flow_hash [2022-10-17 10:30:15,326 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-10-17 10:30:15,326 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-10-17 10:30:15,326 INFO L130 BoogieDeclarations]: Found specification of procedure tun_queue_purge [2022-10-17 10:30:15,326 INFO L138 BoogieDeclarations]: Found implementation of procedure tun_queue_purge [2022-10-17 10:30:15,326 INFO L130 BoogieDeclarations]: Found specification of procedure tun_hashfn [2022-10-17 10:30:15,326 INFO L138 BoogieDeclarations]: Found implementation of procedure tun_hashfn [2022-10-17 10:30:15,327 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-10-17 10:30:15,327 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-10-17 10:30:15,327 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-10-17 10:30:15,327 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-10-17 10:30:15,327 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-10-17 10:30:15,327 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-10-17 10:30:15,327 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_held [2022-10-17 10:30:15,328 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_held [2022-10-17 10:30:15,328 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_75 [2022-10-17 10:30:15,328 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_75 [2022-10-17 10:30:15,328 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-10-17 10:30:15,328 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-10-17 10:30:15,328 INFO L130 BoogieDeclarations]: Found specification of procedure tun_enable_queue [2022-10-17 10:30:15,329 INFO L138 BoogieDeclarations]: Found implementation of procedure tun_enable_queue [2022-10-17 10:30:15,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-17 10:30:15,329 INFO L130 BoogieDeclarations]: Found specification of procedure security_tun_dev_free_security [2022-10-17 10:30:15,329 INFO L138 BoogieDeclarations]: Found implementation of procedure security_tun_dev_free_security [2022-10-17 10:30:15,329 INFO L130 BoogieDeclarations]: Found specification of procedure hold_net [2022-10-17 10:30:15,329 INFO L138 BoogieDeclarations]: Found implementation of procedure hold_net [2022-10-17 10:30:15,329 INFO L130 BoogieDeclarations]: Found specification of procedure tun_set_real_num_queues [2022-10-17 10:30:15,330 INFO L138 BoogieDeclarations]: Found implementation of procedure tun_set_real_num_queues [2022-10-17 10:30:15,330 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-10-17 10:30:15,331 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-10-17 10:30:15,331 INFO L130 BoogieDeclarations]: Found specification of procedure uid_eq [2022-10-17 10:30:15,331 INFO L138 BoogieDeclarations]: Found implementation of procedure uid_eq [2022-10-17 10:30:15,331 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_link_unregister [2022-10-17 10:30:15,332 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_link_unregister [2022-10-17 10:30:15,332 INFO L130 BoogieDeclarations]: Found specification of procedure tun_do_read [2022-10-17 10:30:15,332 INFO L138 BoogieDeclarations]: Found implementation of procedure tun_do_read [2022-10-17 10:30:15,332 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-10-17 10:30:15,332 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-10-17 10:30:15,333 INFO L130 BoogieDeclarations]: Found specification of procedure __kgid_val [2022-10-17 10:30:15,333 INFO L138 BoogieDeclarations]: Found implementation of procedure __kgid_val [2022-10-17 10:30:15,333 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-10-17 10:30:15,333 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-10-17 10:30:15,333 INFO L130 BoogieDeclarations]: Found specification of procedure is_multicast_ether_addr [2022-10-17 10:30:15,333 INFO L138 BoogieDeclarations]: Found implementation of procedure is_multicast_ether_addr [2022-10-17 10:30:15,334 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-10-17 10:30:15,334 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-10-17 10:30:15,334 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2022-10-17 10:30:15,334 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2022-10-17 10:30:15,334 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2022-10-17 10:30:15,334 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2022-10-17 10:30:15,334 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-10-17 10:30:15,335 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-10-17 10:30:15,336 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2022-10-17 10:30:15,347 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2022-10-17 10:30:15,347 INFO L130 BoogieDeclarations]: Found specification of procedure tun_detach_filter [2022-10-17 10:30:15,347 INFO L138 BoogieDeclarations]: Found implementation of procedure tun_detach_filter [2022-10-17 10:30:15,347 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_fromiovecend [2022-10-17 10:30:15,348 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_fromiovecend [2022-10-17 10:30:15,348 INFO L130 BoogieDeclarations]: Found specification of procedure round_jiffies_up [2022-10-17 10:30:15,348 INFO L138 BoogieDeclarations]: Found implementation of procedure round_jiffies_up [2022-10-17 10:30:15,349 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-10-17 10:30:15,349 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-10-17 10:30:15,349 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_unlock [2022-10-17 10:30:15,349 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_unlock [2022-10-17 10:30:15,349 INFO L130 BoogieDeclarations]: Found specification of procedure tun_put [2022-10-17 10:30:15,349 INFO L138 BoogieDeclarations]: Found implementation of procedure tun_put [2022-10-17 10:30:15,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 10:30:15,350 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-10-17 10:30:15,350 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-10-17 10:30:16,291 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 10:30:16,295 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 10:30:16,751 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-10-17 10:30:21,697 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-10-17 10:30:21,797 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 10:30:21,828 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 10:30:21,829 INFO L300 CfgBuilder]: Removed 20 assume(true) statements. [2022-10-17 10:30:21,834 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:30:21 BoogieIcfgContainer [2022-10-17 10:30:21,835 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 10:30:21,839 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-17 10:30:21,843 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-17 10:30:21,846 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-17 10:30:21,847 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 10:30:08" (1/3) ... [2022-10-17 10:30:21,848 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35c4713a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:30:21, skipping insertion in model container [2022-10-17 10:30:21,848 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:30:14" (2/3) ... [2022-10-17 10:30:21,849 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35c4713a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:30:21, skipping insertion in model container [2022-10-17 10:30:21,849 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:30:21" (3/3) ... [2022-10-17 10:30:21,857 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-tun.cil.i [2022-10-17 10:30:21,876 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-17 10:30:21,877 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-10-17 10:30:22,030 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-17 10:30:22,045 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;@3d12539, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-17 10:30:22,046 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-10-17 10:30:22,061 INFO L276 IsEmpty]: Start isEmpty. Operand has 2325 states, 1736 states have (on average 1.3899769585253456) internal successors, (2413), 1772 states have internal predecessors, (2413), 481 states have call successors, (481), 106 states have call predecessors, (481), 105 states have return successors, (474), 473 states have call predecessors, (474), 474 states have call successors, (474) [2022-10-17 10:30:22,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2022-10-17 10:30:22,108 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:30:22,109 INFO L195 NwaCegarLoop]: trace histogram [28, 28, 27, 27, 27, 27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:30:22,110 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 10:30:22,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:30:22,115 INFO L85 PathProgramCache]: Analyzing trace with hash 2106280535, now seen corresponding path program 1 times [2022-10-17 10:30:22,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:30:22,127 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774026522] [2022-10-17 10:30:22,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:30:22,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:30:22,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:23,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-17 10:30:23,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:23,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:30:23,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:23,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-17 10:30:23,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:23,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:30:23,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:23,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-17 10:30:23,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:23,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:30:23,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:23,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-10-17 10:30:23,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:23,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:30:23,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:23,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-10-17 10:30:23,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:23,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:30:23,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:23,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-10-17 10:30:23,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:23,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:30:23,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:23,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-10-17 10:30:23,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:23,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:30:23,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:23,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-10-17 10:30:23,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:23,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:30:23,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:23,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-10-17 10:30:23,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:23,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:30:23,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:23,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-10-17 10:30:23,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:23,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:30:23,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:23,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-10-17 10:30:23,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:23,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:30:23,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:23,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-10-17 10:30:23,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:23,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:30:23,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:23,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-10-17 10:30:23,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:23,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:30:23,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:23,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-10-17 10:30:23,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:23,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:30:23,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:23,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-10-17 10:30:23,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:23,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:30:23,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:23,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-10-17 10:30:23,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:23,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:30:23,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:23,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-10-17 10:30:23,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:23,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:30:23,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:23,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-10-17 10:30:23,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:23,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:30:24,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:24,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2022-10-17 10:30:24,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:24,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:30:24,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:24,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-10-17 10:30:24,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:24,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:30:24,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:24,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-10-17 10:30:24,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:24,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:30:24,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:24,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2022-10-17 10:30:24,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:24,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:30:24,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:24,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2022-10-17 10:30:24,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:24,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:30:24,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:24,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2022-10-17 10:30:24,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:24,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:30:24,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:24,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2022-10-17 10:30:24,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:24,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:30:24,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:24,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2022-10-17 10:30:24,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:24,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:30:24,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:24,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2022-10-17 10:30:24,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:24,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:30:24,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:24,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2022-10-17 10:30:24,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:24,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2022-10-17 10:30:24,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:24,385 INFO L134 CoverageAnalysis]: Checked inductivity of 3240 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3240 trivial. 0 not checked. [2022-10-17 10:30:24,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:30:24,386 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774026522] [2022-10-17 10:30:24,387 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [774026522] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:30:24,387 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:30:24,387 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-17 10:30:24,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85452097] [2022-10-17 10:30:24,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:30:24,396 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-17 10:30:24,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:30:24,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-17 10:30:24,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-17 10:30:24,442 INFO L87 Difference]: Start difference. First operand has 2325 states, 1736 states have (on average 1.3899769585253456) internal successors, (2413), 1772 states have internal predecessors, (2413), 481 states have call successors, (481), 106 states have call predecessors, (481), 105 states have return successors, (474), 473 states have call predecessors, (474), 474 states have call successors, (474) Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2022-10-17 10:30:29,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:30:29,580 INFO L93 Difference]: Finished difference Result 6583 states and 9691 transitions. [2022-10-17 10:30:29,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-17 10:30:29,582 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) Word has length 327 [2022-10-17 10:30:29,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:30:29,644 INFO L225 Difference]: With dead ends: 6583 [2022-10-17 10:30:29,644 INFO L226 Difference]: Without dead ends: 4306 [2022-10-17 10:30:29,672 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 114 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 10:30:29,676 INFO L413 NwaCegarLoop]: 3298 mSDtfsCounter, 3815 mSDsluCounter, 3339 mSDsCounter, 0 mSdLazyCounter, 2127 mSolverCounterSat, 1206 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4192 SdHoareTripleChecker+Valid, 6637 SdHoareTripleChecker+Invalid, 3333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1206 IncrementalHoareTripleChecker+Valid, 2127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-10-17 10:30:29,677 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4192 Valid, 6637 Invalid, 3333 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1206 Valid, 2127 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2022-10-17 10:30:29,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4306 states. [2022-10-17 10:30:30,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4306 to 4290. [2022-10-17 10:30:30,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4290 states, 3199 states have (on average 1.3179118474523288) internal successors, (4216), 3269 states have internal predecessors, (4216), 882 states have call successors, (882), 207 states have call predecessors, (882), 206 states have return successors, (878), 876 states have call predecessors, (878), 878 states have call successors, (878) [2022-10-17 10:30:30,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4290 states to 4290 states and 5976 transitions. [2022-10-17 10:30:30,062 INFO L78 Accepts]: Start accepts. Automaton has 4290 states and 5976 transitions. Word has length 327 [2022-10-17 10:30:30,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:30:30,065 INFO L495 AbstractCegarLoop]: Abstraction has 4290 states and 5976 transitions. [2022-10-17 10:30:30,065 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2022-10-17 10:30:30,066 INFO L276 IsEmpty]: Start isEmpty. Operand 4290 states and 5976 transitions. [2022-10-17 10:30:30,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2022-10-17 10:30:30,076 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:30:30,077 INFO L195 NwaCegarLoop]: trace histogram [28, 28, 27, 27, 27, 27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:30:30,077 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-17 10:30:30,077 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 10:30:30,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:30:30,078 INFO L85 PathProgramCache]: Analyzing trace with hash 1206508567, now seen corresponding path program 1 times [2022-10-17 10:30:30,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:30:30,079 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470485623] [2022-10-17 10:30:30,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:30:30,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:30:30,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:30,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-17 10:30:30,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:30,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:30:30,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:30,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-17 10:30:30,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:30,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:30:30,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:30,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-17 10:30:30,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:30,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:30:30,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:30,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-10-17 10:30:30,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:30,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:30:30,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:30,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-10-17 10:30:30,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:30,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:30:30,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:30,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-10-17 10:30:30,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:30,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:30:30,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:30,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-10-17 10:30:30,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:30,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:30:30,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:30,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-10-17 10:30:30,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:30,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:30:30,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:30,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-10-17 10:30:30,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:30,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:30:30,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:30,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-10-17 10:30:30,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:30,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:30:30,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:30,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-10-17 10:30:30,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:30,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:30:30,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:30,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-10-17 10:30:30,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:30,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:30:30,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:30,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-10-17 10:30:30,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:30,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:30:30,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:30,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-10-17 10:30:30,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:30,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:30:30,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:30,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-10-17 10:30:30,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:30,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:30:30,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:30,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-10-17 10:30:30,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:30,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:30:30,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:30,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-10-17 10:30:30,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:30,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:30:30,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:30,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-10-17 10:30:30,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:30,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:30:30,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:30,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2022-10-17 10:30:30,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:30,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:30:30,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:30,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-10-17 10:30:30,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:30,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:30:30,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:30,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-10-17 10:30:31,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:31,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:30:31,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:31,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2022-10-17 10:30:31,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:31,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:30:31,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:31,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2022-10-17 10:30:31,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:31,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:30:31,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:31,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2022-10-17 10:30:31,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:31,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:30:31,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:31,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2022-10-17 10:30:31,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:31,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:30:31,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:31,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2022-10-17 10:30:31,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:31,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:30:31,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:31,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2022-10-17 10:30:31,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:31,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:30:31,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:31,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2022-10-17 10:30:31,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:31,158 INFO L134 CoverageAnalysis]: Checked inductivity of 3240 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3240 trivial. 0 not checked. [2022-10-17 10:30:31,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:30:31,159 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1470485623] [2022-10-17 10:30:31,159 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1470485623] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:30:31,159 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:30:31,159 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-17 10:30:31,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155708285] [2022-10-17 10:30:31,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:30:31,161 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-17 10:30:31,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:30:31,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-17 10:30:31,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-17 10:30:31,162 INFO L87 Difference]: Start difference. First operand 4290 states and 5976 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29)