./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2f551c-a89f-42c5-a448-9a1209cb734f/bin/uautomizer-YU5uOKAj3y/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2f551c-a89f-42c5-a448-9a1209cb734f/bin/uautomizer-YU5uOKAj3y/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2f551c-a89f-42c5-a448-9a1209cb734f/bin/uautomizer-YU5uOKAj3y/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2f551c-a89f-42c5-a448-9a1209cb734f/bin/uautomizer-YU5uOKAj3y/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2f551c-a89f-42c5-a448-9a1209cb734f/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2f551c-a89f-42c5-a448-9a1209cb734f/bin/uautomizer-YU5uOKAj3y --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 ce7b7e06b36a72b3de911fb70c1b245fd97c856ddcef7fa1f63b6ddc09812498 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 17:30:59,559 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 17:30:59,562 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 17:30:59,594 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 17:30:59,594 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 17:30:59,596 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 17:30:59,598 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 17:30:59,600 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 17:30:59,602 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 17:30:59,603 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 17:30:59,605 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 17:30:59,607 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 17:30:59,607 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 17:30:59,609 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 17:30:59,610 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 17:30:59,612 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 17:30:59,613 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 17:30:59,615 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 17:30:59,617 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 17:30:59,620 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 17:30:59,622 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 17:30:59,624 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 17:30:59,626 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 17:30:59,627 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 17:30:59,631 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 17:30:59,631 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 17:30:59,632 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 17:30:59,633 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 17:30:59,634 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 17:30:59,635 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 17:30:59,635 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 17:30:59,636 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 17:30:59,637 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 17:30:59,638 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 17:30:59,640 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 17:30:59,640 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 17:30:59,641 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 17:30:59,641 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 17:30:59,641 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 17:30:59,642 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 17:30:59,643 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 17:30:59,644 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2f551c-a89f-42c5-a448-9a1209cb734f/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-13 17:30:59,672 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 17:30:59,672 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 17:30:59,673 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-13 17:30:59,673 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-13 17:30:59,674 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 17:30:59,674 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 17:30:59,675 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-13 17:30:59,675 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-13 17:30:59,675 INFO L138 SettingsManager]: * Use SBE=true [2021-11-13 17:30:59,675 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 17:30:59,676 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 17:30:59,676 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 17:30:59,676 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 17:30:59,676 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 17:30:59,676 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 17:30:59,677 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 17:30:59,677 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 17:30:59,677 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 17:30:59,677 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 17:30:59,677 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-13 17:30:59,678 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 17:30:59,678 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 17:30:59,678 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 17:30:59,678 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 17:30:59,679 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 17:30:59,679 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-13 17:30:59,679 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 17:30:59,679 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-13 17:30:59,679 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-13 17:30:59,680 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 17:30:59,680 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 17:30:59,680 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_ff2f551c-a89f-42c5-a448-9a1209cb734f/bin/uautomizer-YU5uOKAj3y/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2f551c-a89f-42c5-a448-9a1209cb734f/bin/uautomizer-YU5uOKAj3y Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ce7b7e06b36a72b3de911fb70c1b245fd97c856ddcef7fa1f63b6ddc09812498 [2021-11-13 17:30:59,933 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 17:30:59,954 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 17:30:59,957 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 17:30:59,958 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 17:30:59,959 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 17:30:59,960 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2f551c-a89f-42c5-a448-9a1209cb734f/bin/uautomizer-YU5uOKAj3y/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i [2021-11-13 17:31:00,037 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2f551c-a89f-42c5-a448-9a1209cb734f/bin/uautomizer-YU5uOKAj3y/data/76a36d9c0/289bea104ab14f45844309d72e87b7fa/FLAG705f889d1 [2021-11-13 17:31:01,085 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 17:31:01,086 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2f551c-a89f-42c5-a448-9a1209cb734f/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i [2021-11-13 17:31:01,158 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2f551c-a89f-42c5-a448-9a1209cb734f/bin/uautomizer-YU5uOKAj3y/data/76a36d9c0/289bea104ab14f45844309d72e87b7fa/FLAG705f889d1 [2021-11-13 17:31:01,403 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2f551c-a89f-42c5-a448-9a1209cb734f/bin/uautomizer-YU5uOKAj3y/data/76a36d9c0/289bea104ab14f45844309d72e87b7fa [2021-11-13 17:31:01,405 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 17:31:01,407 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 17:31:01,409 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 17:31:01,409 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 17:31:01,413 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 17:31:01,413 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 05:31:01" (1/1) ... [2021-11-13 17:31:01,415 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69932cef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:31:01, skipping insertion in model container [2021-11-13 17:31:01,415 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 05:31:01" (1/1) ... [2021-11-13 17:31:01,422 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 17:31:01,649 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 17:31:07,327 WARN L228 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_ff2f551c-a89f-42c5-a448-9a1209cb734f/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i[493165,493178] [2021-11-13 17:31:07,330 WARN L228 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_ff2f551c-a89f-42c5-a448-9a1209cb734f/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i[493334,493347] [2021-11-13 17:31:07,337 WARN L228 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_ff2f551c-a89f-42c5-a448-9a1209cb734f/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i[493501,493514] [2021-11-13 17:31:07,338 WARN L228 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_ff2f551c-a89f-42c5-a448-9a1209cb734f/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i[493669,493682] [2021-11-13 17:31:07,377 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 17:31:07,455 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 17:31:08,027 WARN L228 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_ff2f551c-a89f-42c5-a448-9a1209cb734f/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i[493165,493178] [2021-11-13 17:31:08,028 WARN L228 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_ff2f551c-a89f-42c5-a448-9a1209cb734f/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i[493334,493347] [2021-11-13 17:31:08,029 WARN L228 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_ff2f551c-a89f-42c5-a448-9a1209cb734f/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i[493501,493514] [2021-11-13 17:31:08,029 WARN L228 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_ff2f551c-a89f-42c5-a448-9a1209cb734f/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i[493669,493682] [2021-11-13 17:31:08,044 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 17:31:08,462 INFO L208 MainTranslator]: Completed translation [2021-11-13 17:31:08,463 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:31:08 WrapperNode [2021-11-13 17:31:08,463 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 17:31:08,464 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 17:31:08,465 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 17:31:08,465 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 17:31:08,473 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:31:08" (1/1) ... [2021-11-13 17:31:08,712 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:31:08" (1/1) ... [2021-11-13 17:31:09,115 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 17:31:09,116 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 17:31:09,116 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 17:31:09,116 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 17:31:09,127 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:31:08" (1/1) ... [2021-11-13 17:31:09,127 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:31:08" (1/1) ... [2021-11-13 17:31:09,178 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:31:08" (1/1) ... [2021-11-13 17:31:09,179 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:31:08" (1/1) ... [2021-11-13 17:31:09,562 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:31:08" (1/1) ... [2021-11-13 17:31:09,610 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:31:08" (1/1) ... [2021-11-13 17:31:09,677 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:31:08" (1/1) ... [2021-11-13 17:31:09,743 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 17:31:09,744 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 17:31:09,745 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 17:31:09,745 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 17:31:09,746 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:31:08" (1/1) ... [2021-11-13 17:31:09,754 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 17:31:09,766 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2f551c-a89f-42c5-a448-9a1209cb734f/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:31:09,784 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2f551c-a89f-42c5-a448-9a1209cb734f/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-13 17:31:09,800 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff2f551c-a89f-42c5-a448-9a1209cb734f/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-13 17:31:09,839 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2021-11-13 17:31:09,840 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2021-11-13 17:31:09,840 INFO L130 BoogieDeclarations]: Found specification of procedure cas_phy_read [2021-11-13 17:31:09,840 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_phy_read [2021-11-13 17:31:09,840 INFO L130 BoogieDeclarations]: Found specification of procedure cas_pcs_link_check [2021-11-13 17:31:09,841 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_pcs_link_check [2021-11-13 17:31:09,841 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-11-13 17:31:09,841 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-11-13 17:31:09,841 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-13 17:31:09,841 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-13 17:31:09,842 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2021-11-13 17:31:09,842 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2021-11-13 17:31:09,842 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_page [2021-11-13 17:31:09,842 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_page [2021-11-13 17:31:09,842 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-13 17:31:09,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-13 17:31:09,843 INFO L130 BoogieDeclarations]: Found specification of procedure cas_mii_link_check [2021-11-13 17:31:09,843 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_mii_link_check [2021-11-13 17:31:09,843 INFO L130 BoogieDeclarations]: Found specification of procedure cas_calc_tabort [2021-11-13 17:31:09,843 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_calc_tabort [2021-11-13 17:31:09,843 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_word [2021-11-13 17:31:09,844 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_word [2021-11-13 17:31:09,844 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_sync_single_for_cpu [2021-11-13 17:31:09,844 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_sync_single_for_cpu [2021-11-13 17:31:09,844 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-13 17:31:09,844 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-13 17:31:09,844 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_page [2021-11-13 17:31:09,845 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_page [2021-11-13 17:31:09,845 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-13 17:31:09,845 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-13 17:31:09,845 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2021-11-13 17:31:09,845 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2021-11-13 17:31:09,846 INFO L130 BoogieDeclarations]: Found specification of procedure cas_lock_tx [2021-11-13 17:31:09,846 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_lock_tx [2021-11-13 17:31:09,846 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2021-11-13 17:31:09,846 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2021-11-13 17:31:09,846 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-13 17:31:09,847 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-13 17:31:09,847 INFO L130 BoogieDeclarations]: Found specification of procedure cas_disable_irq [2021-11-13 17:31:09,847 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_disable_irq [2021-11-13 17:31:09,847 INFO L130 BoogieDeclarations]: Found specification of procedure cas_free_rxds [2021-11-13 17:31:09,847 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_free_rxds [2021-11-13 17:31:09,847 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_page [2021-11-13 17:31:09,848 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_page [2021-11-13 17:31:09,848 INFO L130 BoogieDeclarations]: Found specification of procedure cas_open [2021-11-13 17:31:09,848 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_open [2021-11-13 17:31:09,848 INFO L130 BoogieDeclarations]: Found specification of procedure cas_interrupt [2021-11-13 17:31:09,848 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_interrupt [2021-11-13 17:31:09,849 INFO L130 BoogieDeclarations]: Found specification of procedure cas_tx_tiny_free [2021-11-13 17:31:09,849 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_tx_tiny_free [2021-11-13 17:31:09,849 INFO L130 BoogieDeclarations]: Found specification of procedure PageTail [2021-11-13 17:31:09,849 INFO L138 BoogieDeclarations]: Found implementation of procedure PageTail [2021-11-13 17:31:09,849 INFO L130 BoogieDeclarations]: Found specification of procedure tx_tiny_map [2021-11-13 17:31:09,850 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_tiny_map [2021-11-13 17:31:09,850 INFO L130 BoogieDeclarations]: Found specification of procedure cas_phy_init [2021-11-13 17:31:09,850 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_phy_init [2021-11-13 17:31:09,850 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_pages [2021-11-13 17:31:09,850 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_pages [2021-11-13 17:31:09,850 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size_set [2021-11-13 17:31:09,851 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size_set [2021-11-13 17:31:09,851 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-13 17:31:09,851 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-13 17:31:09,851 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-13 17:31:09,851 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-13 17:31:09,852 INFO L130 BoogieDeclarations]: Found specification of procedure cas_enable_irq [2021-11-13 17:31:09,852 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_enable_irq [2021-11-13 17:31:09,852 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-13 17:31:09,852 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-13 17:31:09,852 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2021-11-13 17:31:09,852 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2021-11-13 17:31:09,853 INFO L130 BoogieDeclarations]: Found specification of procedure cas_page_dequeue [2021-11-13 17:31:09,853 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_page_dequeue [2021-11-13 17:31:09,853 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2021-11-13 17:31:09,853 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2021-11-13 17:31:09,853 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-13 17:31:09,853 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-13 17:31:09,854 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-13 17:31:09,854 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-13 17:31:09,854 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-11-13 17:31:09,854 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-11-13 17:31:09,854 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2021-11-13 17:31:09,855 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2021-11-13 17:31:09,855 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-13 17:31:09,855 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_108 [2021-11-13 17:31:09,855 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_108 [2021-11-13 17:31:09,855 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_word [2021-11-13 17:31:09,855 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_word [2021-11-13 17:31:09,856 INFO L130 BoogieDeclarations]: Found specification of procedure cas_set_multicast [2021-11-13 17:31:09,856 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_set_multicast [2021-11-13 17:31:09,856 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2021-11-13 17:31:09,856 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2021-11-13 17:31:09,856 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2021-11-13 17:31:09,857 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2021-11-13 17:31:09,857 INFO L130 BoogieDeclarations]: Found specification of procedure cas_spare_free [2021-11-13 17:31:09,857 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_spare_free [2021-11-13 17:31:09,857 INFO L130 BoogieDeclarations]: Found specification of procedure cas_tx_timeout [2021-11-13 17:31:09,857 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_tx_timeout [2021-11-13 17:31:09,857 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-13 17:31:09,858 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-13 17:31:09,858 INFO L130 BoogieDeclarations]: Found specification of procedure cas_read_pcs_link_mode [2021-11-13 17:31:09,858 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_read_pcs_link_mode [2021-11-13 17:31:09,858 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-11-13 17:31:09,858 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-11-13 17:31:09,858 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-13 17:31:09,859 INFO L130 BoogieDeclarations]: Found specification of procedure cas_close [2021-11-13 17:31:09,859 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_close [2021-11-13 17:31:09,859 INFO L130 BoogieDeclarations]: Found specification of procedure cas_page_swap [2021-11-13 17:31:09,859 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_page_swap [2021-11-13 17:31:09,859 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-13 17:31:09,859 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-13 17:31:09,860 INFO L130 BoogieDeclarations]: Found specification of procedure cas_netpoll [2021-11-13 17:31:09,860 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_netpoll [2021-11-13 17:31:09,860 INFO L130 BoogieDeclarations]: Found specification of procedure cas_hard_reset [2021-11-13 17:31:09,860 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_hard_reset [2021-11-13 17:31:09,860 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-11-13 17:31:09,861 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-11-13 17:31:09,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-13 17:31:09,861 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-13 17:31:09,861 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-13 17:31:09,861 INFO L130 BoogieDeclarations]: Found specification of procedure cas_rxc_init [2021-11-13 17:31:09,862 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_rxc_init [2021-11-13 17:31:09,862 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-13 17:31:09,862 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-13 17:31:09,862 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-13 17:31:09,862 INFO L130 BoogieDeclarations]: Found specification of procedure cas_clear_mac_err [2021-11-13 17:31:09,862 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_clear_mac_err [2021-11-13 17:31:09,863 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-13 17:31:09,863 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-13 17:31:09,863 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-13 17:31:09,863 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-13 17:31:09,863 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-13 17:31:09,864 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-13 17:31:09,864 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2021-11-13 17:31:09,864 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2021-11-13 17:31:09,864 INFO L130 BoogieDeclarations]: Found specification of procedure cas_remove_one [2021-11-13 17:31:09,864 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_remove_one [2021-11-13 17:31:09,864 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_NOT_ARG_SIGN [2021-11-13 17:31:09,864 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_NOT_ARG_SIGN [2021-11-13 17:31:09,865 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-11-13 17:31:09,865 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-11-13 17:31:09,865 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-13 17:31:09,865 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-13 17:31:09,865 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-13 17:31:09,866 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-13 17:31:09,866 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_dequeue [2021-11-13 17:31:09,866 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_dequeue [2021-11-13 17:31:09,866 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-13 17:31:09,866 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-13 17:31:09,866 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-13 17:31:09,867 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-13 17:31:09,867 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-13 17:31:09,867 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2021-11-13 17:31:09,867 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2021-11-13 17:31:09,867 INFO L130 BoogieDeclarations]: Found specification of procedure list_splice_init [2021-11-13 17:31:09,867 INFO L138 BoogieDeclarations]: Found implementation of procedure list_splice_init [2021-11-13 17:31:09,868 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-13 17:31:09,868 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-13 17:31:09,868 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-13 17:31:09,868 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-13 17:31:09,868 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-13 17:31:09,868 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-13 17:31:09,869 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-13 17:31:09,869 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-13 17:31:09,869 INFO L130 BoogieDeclarations]: Found specification of procedure cas_set_link_modes [2021-11-13 17:31:09,869 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_set_link_modes [2021-11-13 17:31:09,869 INFO L130 BoogieDeclarations]: Found specification of procedure cas_read_mii_link_mode [2021-11-13 17:31:09,870 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_read_mii_link_mode [2021-11-13 17:31:09,870 INFO L130 BoogieDeclarations]: Found specification of procedure __list_splice [2021-11-13 17:31:09,870 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_splice [2021-11-13 17:31:09,870 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-11-13 17:31:09,870 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-11-13 17:31:09,870 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-11-13 17:31:09,871 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-11-13 17:31:09,871 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2021-11-13 17:31:09,871 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2021-11-13 17:31:09,871 INFO L130 BoogieDeclarations]: Found specification of procedure kmap_atomic [2021-11-13 17:31:09,871 INFO L138 BoogieDeclarations]: Found implementation of procedure kmap_atomic [2021-11-13 17:31:09,871 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2021-11-13 17:31:09,872 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2021-11-13 17:31:09,872 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-13 17:31:09,872 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-13 17:31:09,872 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-11-13 17:31:09,872 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-11-13 17:31:09,872 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-13 17:31:09,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-13 17:31:09,873 INFO L130 BoogieDeclarations]: Found specification of procedure csum_unfold [2021-11-13 17:31:09,873 INFO L138 BoogieDeclarations]: Found implementation of procedure csum_unfold [2021-11-13 17:31:09,873 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-11-13 17:31:09,873 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-11-13 17:31:09,873 INFO L130 BoogieDeclarations]: Found specification of procedure cas_entropy_gather [2021-11-13 17:31:09,874 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_entropy_gather [2021-11-13 17:31:09,874 INFO L130 BoogieDeclarations]: Found specification of procedure cas_resume [2021-11-13 17:31:09,874 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_resume [2021-11-13 17:31:09,874 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 17:31:09,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 17:31:09,874 INFO L130 BoogieDeclarations]: Found specification of procedure cas_page_alloc [2021-11-13 17:31:09,875 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_page_alloc [2021-11-13 17:31:09,875 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-13 17:31:09,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-13 17:31:09,875 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-13 17:31:09,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-13 17:31:09,875 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-13 17:31:09,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-13 17:31:09,876 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-11-13 17:31:09,876 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-11-13 17:31:09,876 INFO L130 BoogieDeclarations]: Found specification of procedure cas_mif_poll [2021-11-13 17:31:09,876 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_mif_poll [2021-11-13 17:31:09,876 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-13 17:31:09,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-13 17:31:09,877 INFO L130 BoogieDeclarations]: Found specification of procedure cas_unlock_tx [2021-11-13 17:31:09,877 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_unlock_tx [2021-11-13 17:31:09,877 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-11-13 17:31:09,877 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-11-13 17:31:09,877 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_133 [2021-11-13 17:31:09,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_133 [2021-11-13 17:31:09,878 INFO L130 BoogieDeclarations]: Found specification of procedure list_splice [2021-11-13 17:31:09,878 INFO L138 BoogieDeclarations]: Found implementation of procedure list_splice [2021-11-13 17:31:09,878 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_135 [2021-11-13 17:31:09,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_135 [2021-11-13 17:31:09,878 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2021-11-13 17:31:09,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2021-11-13 17:31:09,879 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_sub [2021-11-13 17:31:09,879 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_sub [2021-11-13 17:31:09,879 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2021-11-13 17:31:09,879 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2021-11-13 17:31:09,879 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-13 17:31:09,879 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-13 17:31:09,880 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-13 17:31:09,880 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-13 17:31:09,880 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2021-11-13 17:31:09,880 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2021-11-13 17:31:09,880 INFO L130 BoogieDeclarations]: Found specification of procedure tx_tiny_buf [2021-11-13 17:31:09,880 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_tiny_buf [2021-11-13 17:31:09,881 INFO L130 BoogieDeclarations]: Found specification of procedure cas_mac_reset [2021-11-13 17:31:09,881 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_mac_reset [2021-11-13 17:31:09,881 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_cas [2021-11-13 17:31:09,881 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_cas [2021-11-13 17:31:09,881 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 17:31:09,881 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-13 17:31:09,882 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-13 17:31:09,882 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_frag_set_page [2021-11-13 17:31:09,882 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_frag_set_page [2021-11-13 17:31:09,882 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-13 17:31:09,882 INFO L130 BoogieDeclarations]: Found specification of procedure cas_get_regs_len [2021-11-13 17:31:09,882 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_get_regs_len [2021-11-13 17:31:09,883 INFO L130 BoogieDeclarations]: Found specification of procedure cas_reset [2021-11-13 17:31:09,883 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_reset [2021-11-13 17:31:09,883 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_NOT_ARG_SIGN [2021-11-13 17:31:09,883 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_NOT_ARG_SIGN [2021-11-13 17:31:09,883 INFO L130 BoogieDeclarations]: Found specification of procedure __free_pages [2021-11-13 17:31:09,883 INFO L138 BoogieDeclarations]: Found implementation of procedure __free_pages [2021-11-13 17:31:09,884 INFO L130 BoogieDeclarations]: Found specification of procedure cas_post_page [2021-11-13 17:31:09,884 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_post_page [2021-11-13 17:31:09,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-13 17:31:09,884 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_byte [2021-11-13 17:31:09,884 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_byte [2021-11-13 17:31:09,884 INFO L130 BoogieDeclarations]: Found specification of procedure cas_nway_reset [2021-11-13 17:31:09,885 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_nway_reset [2021-11-13 17:31:09,885 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-11-13 17:31:09,885 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-11-13 17:31:09,885 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-13 17:31:09,885 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-13 17:31:09,885 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-13 17:31:09,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-13 17:31:09,886 INFO L130 BoogieDeclarations]: Found specification of procedure cas_setup_multicast [2021-11-13 17:31:09,886 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_setup_multicast [2021-11-13 17:31:09,886 INFO L130 BoogieDeclarations]: Found specification of procedure cas_phy_powerdown [2021-11-13 17:31:09,886 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_phy_powerdown [2021-11-13 17:31:09,886 INFO L130 BoogieDeclarations]: Found specification of procedure cas_post_rxds_ringN [2021-11-13 17:31:09,887 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_post_rxds_ringN [2021-11-13 17:31:09,887 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2021-11-13 17:31:09,887 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2021-11-13 17:31:09,887 INFO L130 BoogieDeclarations]: Found specification of procedure cas_vpd_match [2021-11-13 17:31:09,887 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_vpd_match [2021-11-13 17:31:09,887 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_83 [2021-11-13 17:31:09,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_83 [2021-11-13 17:31:09,888 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_81 [2021-11-13 17:31:09,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_81 [2021-11-13 17:31:09,888 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2021-11-13 17:31:09,888 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2021-11-13 17:31:09,888 INFO L130 BoogieDeclarations]: Found specification of procedure cpumask_weight [2021-11-13 17:31:09,889 INFO L138 BoogieDeclarations]: Found implementation of procedure cpumask_weight [2021-11-13 17:31:09,889 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-11-13 17:31:09,889 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-11-13 17:31:09,889 INFO L130 BoogieDeclarations]: Found specification of procedure page_count [2021-11-13 17:31:09,889 INFO L138 BoogieDeclarations]: Found implementation of procedure page_count [2021-11-13 17:31:09,889 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-13 17:31:09,890 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-13 17:31:09,890 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_77 [2021-11-13 17:31:09,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_77 [2021-11-13 17:31:09,890 INFO L130 BoogieDeclarations]: Found specification of procedure cas_shutdown [2021-11-13 17:31:09,890 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_shutdown [2021-11-13 17:31:09,890 INFO L130 BoogieDeclarations]: Found specification of procedure cas_begin_auto_negotiation [2021-11-13 17:31:09,890 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_begin_auto_negotiation [2021-11-13 17:31:09,891 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_page [2021-11-13 17:31:09,891 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_page [2021-11-13 17:31:09,891 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-13 17:31:09,891 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-13 17:31:09,891 INFO L130 BoogieDeclarations]: Found specification of procedure cas_write_txd [2021-11-13 17:31:09,891 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_write_txd [2021-11-13 17:31:09,891 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-13 17:31:09,892 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-13 17:31:09,892 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_frag_ref [2021-11-13 17:31:09,892 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_frag_ref [2021-11-13 17:31:09,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-13 17:31:09,892 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-13 17:31:09,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-13 17:31:09,893 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_82 [2021-11-13 17:31:09,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_82 [2021-11-13 17:31:09,893 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_84 [2021-11-13 17:31:09,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_84 [2021-11-13 17:31:09,893 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_79 [2021-11-13 17:31:09,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_79 [2021-11-13 17:31:09,893 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2021-11-13 17:31:09,894 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2021-11-13 17:31:09,894 INFO L130 BoogieDeclarations]: Found specification of procedure cas_init_hw [2021-11-13 17:31:09,894 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_init_hw [2021-11-13 17:31:09,894 INFO L130 BoogieDeclarations]: Found specification of procedure cas_clean_rings [2021-11-13 17:31:09,894 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_clean_rings [2021-11-13 17:31:09,894 INFO L130 BoogieDeclarations]: Found specification of procedure cas_page_free [2021-11-13 17:31:09,894 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_page_free [2021-11-13 17:31:09,895 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2021-11-13 17:31:09,895 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2021-11-13 17:31:09,895 INFO L130 BoogieDeclarations]: Found specification of procedure cas_phy_write [2021-11-13 17:31:09,895 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_phy_write [2021-11-13 17:31:09,895 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-13 17:31:09,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-13 17:31:09,896 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2021-11-13 17:31:09,896 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2021-11-13 17:31:09,896 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2021-11-13 17:31:09,896 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2021-11-13 17:31:09,896 INFO L130 BoogieDeclarations]: Found specification of procedure cas_spare_recover [2021-11-13 17:31:09,896 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_spare_recover [2021-11-13 17:31:09,896 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed [2021-11-13 17:31:09,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed [2021-11-13 17:31:09,897 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-11-13 17:31:09,897 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-11-13 17:31:09,897 INFO L130 BoogieDeclarations]: Found specification of procedure cas_get_stats [2021-11-13 17:31:09,897 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_get_stats [2021-11-13 17:31:09,897 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-11-13 17:31:09,898 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-11-13 17:31:09,898 INFO L130 BoogieDeclarations]: Found specification of procedure __kunmap_atomic [2021-11-13 17:31:09,898 INFO L138 BoogieDeclarations]: Found implementation of procedure __kunmap_atomic [2021-11-13 17:31:09,898 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-13 17:31:09,898 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-13 17:31:09,898 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-13 17:31:09,898 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_sync_single_for_device [2021-11-13 17:31:09,899 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_sync_single_for_device [2021-11-13 17:31:09,899 INFO L130 BoogieDeclarations]: Found specification of procedure readb [2021-11-13 17:31:09,899 INFO L138 BoogieDeclarations]: Found implementation of procedure readb [2021-11-13 17:31:09,899 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_107 [2021-11-13 17:31:09,899 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_107 [2021-11-13 17:31:11,808 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-13 17:38:08,735 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-13 17:38:08,981 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 17:38:08,981 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2021-11-13 17:38:08,988 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 05:38:08 BoogieIcfgContainer [2021-11-13 17:38:08,988 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 17:38:08,992 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-13 17:38:08,992 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-13 17:38:08,996 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-13 17:38:08,996 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 05:31:01" (1/3) ... [2021-11-13 17:38:08,997 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53d6acb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 05:38:08, skipping insertion in model container [2021-11-13 17:38:08,997 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:31:08" (2/3) ... [2021-11-13 17:38:08,998 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53d6acb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 05:38:08, skipping insertion in model container [2021-11-13 17:38:08,998 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 05:38:08" (3/3) ... [2021-11-13 17:38:09,000 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i [2021-11-13 17:38:09,006 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-13 17:38:09,006 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-13 17:38:09,101 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-13 17:38:09,111 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-13 17:38:09,111 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-13 17:38:09,220 INFO L276 IsEmpty]: Start isEmpty. Operand has 3753 states, 2493 states have (on average 1.2904131568391497) internal successors, (3217), 2563 states have internal predecessors, (3217), 1091 states have call successors, (1091), 168 states have call predecessors, (1091), 167 states have return successors, (1086), 1074 states have call predecessors, (1086), 1086 states have call successors, (1086) [2021-11-13 17:38:09,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2021-11-13 17:38:09,234 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:38:09,235 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:38:09,236 INFO L402 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)] === [2021-11-13 17:38:09,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:38:09,242 INFO L85 PathProgramCache]: Analyzing trace with hash 191461984, now seen corresponding path program 1 times [2021-11-13 17:38:09,253 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:38:09,253 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734595816] [2021-11-13 17:38:09,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:38:09,255 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:38:10,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:10,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-13 17:38:10,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:10,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:38:10,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:10,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-13 17:38:10,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:10,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:38:10,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:10,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-13 17:38:10,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:10,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:38:10,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:10,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-13 17:38:10,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:10,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:38:10,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:10,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-13 17:38:10,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:10,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:38:10,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:10,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-13 17:38:10,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:10,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:38:10,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:10,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-13 17:38:10,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:10,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:38:10,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:10,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-13 17:38:10,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:10,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:38:10,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:10,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-13 17:38:10,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:10,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:38:10,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:10,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-13 17:38:10,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:10,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:38:10,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:10,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-13 17:38:10,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:11,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:38:11,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:11,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-13 17:38:11,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:11,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:38:11,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:11,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-11-13 17:38:11,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:11,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-13 17:38:11,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:11,088 INFO L134 CoverageAnalysis]: Checked inductivity of 630 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2021-11-13 17:38:11,088 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:38:11,089 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734595816] [2021-11-13 17:38:11,090 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1734595816] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:38:11,093 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:38:11,094 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-13 17:38:11,100 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889368555] [2021-11-13 17:38:11,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:38:11,106 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 17:38:11,106 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:38:11,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 17:38:11,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-13 17:38:11,158 INFO L87 Difference]: Start difference. First operand has 3753 states, 2493 states have (on average 1.2904131568391497) internal successors, (3217), 2563 states have internal predecessors, (3217), 1091 states have call successors, (1091), 168 states have call predecessors, (1091), 167 states have return successors, (1086), 1074 states have call predecessors, (1086), 1086 states have call successors, (1086) 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, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2021-11-13 17:38:13,340 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:38:15,445 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:38:28,817 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:38:34,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:38:34,521 INFO L93 Difference]: Finished difference Result 11928 states and 17846 transitions. [2021-11-13 17:38:34,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 17:38:34,524 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, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 156 [2021-11-13 17:38:34,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:38:34,643 INFO L225 Difference]: With dead ends: 11928 [2021-11-13 17:38:34,643 INFO L226 Difference]: Without dead ends: 8192 [2021-11-13 17:38:34,711 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-13 17:38:34,735 INFO L933 BasicCegarLoop]: 5569 mSDtfsCounter, 7561 mSDsluCounter, 5675 mSDsCounter, 0 mSdLazyCounter, 4072 mSolverCounterSat, 4065 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19735.82ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 8698 SdHoareTripleChecker+Valid, 11244 SdHoareTripleChecker+Invalid, 8139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 169.70ms SdHoareTripleChecker+Time, 4065 IncrementalHoareTripleChecker+Valid, 4072 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22250.39ms IncrementalHoareTripleChecker+Time [2021-11-13 17:38:34,736 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8698 Valid, 11244 Invalid, 8139 Unknown, 0 Unchecked, 169.70ms Time], IncrementalHoareTripleChecker [4065 Valid, 4072 Invalid, 2 Unknown, 0 Unchecked, 22250.39ms Time] [2021-11-13 17:38:34,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8192 states. [2021-11-13 17:38:35,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8192 to 7340. [2021-11-13 17:38:35,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7340 states, 4880 states have (on average 1.2809426229508196) internal successors, (6251), 5016 states have internal predecessors, (6251), 2126 states have call successors, (2126), 332 states have call predecessors, (2126), 331 states have return successors, (2123), 2099 states have call predecessors, (2123), 2123 states have call successors, (2123) [2021-11-13 17:38:35,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7340 states to 7340 states and 10500 transitions. [2021-11-13 17:38:35,486 INFO L78 Accepts]: Start accepts. Automaton has 7340 states and 10500 transitions. Word has length 156 [2021-11-13 17:38:35,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:38:35,489 INFO L470 AbstractCegarLoop]: Abstraction has 7340 states and 10500 transitions. [2021-11-13 17:38:35,490 INFO L471 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, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2021-11-13 17:38:35,490 INFO L276 IsEmpty]: Start isEmpty. Operand 7340 states and 10500 transitions. [2021-11-13 17:38:35,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2021-11-13 17:38:35,509 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:38:35,510 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:38:35,510 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-13 17:38:35,510 INFO L402 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)] === [2021-11-13 17:38:35,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:38:35,511 INFO L85 PathProgramCache]: Analyzing trace with hash 18680194, now seen corresponding path program 1 times [2021-11-13 17:38:35,514 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:38:35,515 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160404595] [2021-11-13 17:38:35,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:38:35,516 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:38:35,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:36,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-13 17:38:36,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:36,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:38:36,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:36,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-13 17:38:36,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:36,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:38:36,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:36,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-13 17:38:36,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:36,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:38:36,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:36,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-13 17:38:36,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:36,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:38:36,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:36,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-13 17:38:36,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:36,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:38:36,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:36,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-13 17:38:36,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:36,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:38:36,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:36,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-13 17:38:36,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:36,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:38:36,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:36,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-13 17:38:36,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:36,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:38:36,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:36,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-13 17:38:36,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:36,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:38:36,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:36,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-13 17:38:36,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:36,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:38:36,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:36,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-13 17:38:36,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:36,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:38:36,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:36,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-13 17:38:36,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:36,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:38:36,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:36,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-11-13 17:38:36,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:36,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-11-13 17:38:36,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:36,679 INFO L134 CoverageAnalysis]: Checked inductivity of 630 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2021-11-13 17:38:36,681 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:38:36,681 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160404595] [2021-11-13 17:38:36,682 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [160404595] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:38:36,682 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:38:36,682 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-13 17:38:36,682 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35277663] [2021-11-13 17:38:36,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:38:36,686 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 17:38:36,687 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:38:36,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 17:38:36,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-13 17:38:36,688 INFO L87 Difference]: Start difference. First operand 7340 states and 10500 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2021-11-13 17:38:38,850 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:38:40,942 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:38:56,558 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:38:58,640 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:39:03,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:39:03,383 INFO L93 Difference]: Finished difference Result 23442 states and 33936 transitions. [2021-11-13 17:39:03,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 17:39:03,384 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 165 [2021-11-13 17:39:03,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:39:03,575 INFO L225 Difference]: With dead ends: 23442 [2021-11-13 17:39:03,575 INFO L226 Difference]: Without dead ends: 16131 [2021-11-13 17:39:03,648 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-13 17:39:03,650 INFO L933 BasicCegarLoop]: 5516 mSDtfsCounter, 7460 mSDsluCounter, 5721 mSDsCounter, 0 mSdLazyCounter, 4032 mSolverCounterSat, 4144 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22674.96ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 8539 SdHoareTripleChecker+Valid, 11237 SdHoareTripleChecker+Invalid, 8179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 138.99ms SdHoareTripleChecker+Time, 4144 IncrementalHoareTripleChecker+Valid, 4032 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25526.08ms IncrementalHoareTripleChecker+Time [2021-11-13 17:39:03,651 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8539 Valid, 11237 Invalid, 8179 Unknown, 0 Unchecked, 138.99ms Time], IncrementalHoareTripleChecker [4144 Valid, 4032 Invalid, 3 Unknown, 0 Unchecked, 25526.08ms Time] [2021-11-13 17:39:03,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16131 states. [2021-11-13 17:39:04,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16131 to 15159. [2021-11-13 17:39:04,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15159 states, 10094 states have (on average 1.2830394293639786) internal successors, (12951), 10394 states have internal predecessors, (12951), 4365 states have call successors, (4365), 662 states have call predecessors, (4365), 697 states have return successors, (4558), 4314 states have call predecessors, (4558), 4362 states have call successors, (4558) [2021-11-13 17:39:05,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15159 states to 15159 states and 21874 transitions. [2021-11-13 17:39:05,231 INFO L78 Accepts]: Start accepts. Automaton has 15159 states and 21874 transitions. Word has length 165 [2021-11-13 17:39:05,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:39:05,234 INFO L470 AbstractCegarLoop]: Abstraction has 15159 states and 21874 transitions. [2021-11-13 17:39:05,235 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2021-11-13 17:39:05,236 INFO L276 IsEmpty]: Start isEmpty. Operand 15159 states and 21874 transitions. [2021-11-13 17:39:05,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2021-11-13 17:39:05,240 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:39:05,240 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:39:05,241 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-13 17:39:05,242 INFO L402 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)] === [2021-11-13 17:39:05,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:39:05,246 INFO L85 PathProgramCache]: Analyzing trace with hash 2130632229, now seen corresponding path program 1 times [2021-11-13 17:39:05,246 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:39:05,246 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842773800] [2021-11-13 17:39:05,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:39:05,247 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:39:05,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:39:05,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-13 17:39:05,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:39:05,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:39:05,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:39:05,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-13 17:39:05,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:39:05,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:39:05,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:39:05,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-13 17:39:05,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:39:05,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:39:05,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:39:05,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-13 17:39:05,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:39:05,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:39:05,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:39:05,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-13 17:39:05,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:39:05,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:39:05,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:39:05,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-13 17:39:05,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:39:05,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:39:05,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:39:05,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-13 17:39:05,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:39:05,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:39:05,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:39:05,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-13 17:39:05,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:39:05,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:39:05,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:39:05,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-13 17:39:05,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:39:05,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:39:05,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:39:05,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-13 17:39:05,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:39:05,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:39:05,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:39:05,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-13 17:39:05,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:39:05,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:39:05,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:39:05,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-13 17:39:06,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:39:06,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:39:06,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:39:06,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-11-13 17:39:06,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:39:06,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-11-13 17:39:06,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:39:06,046 INFO L134 CoverageAnalysis]: Checked inductivity of 630 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2021-11-13 17:39:06,046 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:39:06,048 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842773800] [2021-11-13 17:39:06,048 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [842773800] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:39:06,048 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:39:06,048 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-13 17:39:06,049 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804729795] [2021-11-13 17:39:06,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:39:06,050 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 17:39:06,050 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:39:06,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 17:39:06,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-13 17:39:06,051 INFO L87 Difference]: Start difference. First operand 15159 states and 21874 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2021-11-13 17:39:08,191 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:39:10,318 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:39:25,455 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:39:28,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:39:28,360 INFO L93 Difference]: Finished difference Result 45295 states and 65690 transitions. [2021-11-13 17:39:28,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 17:39:28,361 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 166 [2021-11-13 17:39:28,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:39:28,599 INFO L225 Difference]: With dead ends: 45295 [2021-11-13 17:39:28,600 INFO L226 Difference]: Without dead ends: 30165 [2021-11-13 17:39:28,715 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-13 17:39:28,717 INFO L933 BasicCegarLoop]: 5436 mSDtfsCounter, 6916 mSDsluCounter, 5604 mSDsCounter, 0 mSdLazyCounter, 4025 mSolverCounterSat, 3955 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18651.94ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 7945 SdHoareTripleChecker+Valid, 11040 SdHoareTripleChecker+Invalid, 7982 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 82.00ms SdHoareTripleChecker+Time, 3955 IncrementalHoareTripleChecker+Valid, 4025 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21193.71ms IncrementalHoareTripleChecker+Time [2021-11-13 17:39:28,717 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7945 Valid, 11040 Invalid, 7982 Unknown, 0 Unchecked, 82.00ms Time], IncrementalHoareTripleChecker [3955 Valid, 4025 Invalid, 2 Unknown, 0 Unchecked, 21193.71ms Time] [2021-11-13 17:39:28,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30165 states. [2021-11-13 17:39:30,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30165 to 28259. [2021-11-13 17:39:31,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28259 states, 18766 states have (on average 1.282265799850794) internal successors, (24063), 19328 states have internal predecessors, (24063), 8137 states have call successors, (8137), 1286 states have call predecessors, (8137), 1353 states have return successors, (8526), 8046 states have call predecessors, (8526), 8134 states have call successors, (8526) [2021-11-13 17:39:31,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28259 states to 28259 states and 40726 transitions. [2021-11-13 17:39:31,273 INFO L78 Accepts]: Start accepts. Automaton has 28259 states and 40726 transitions. Word has length 166 [2021-11-13 17:39:31,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:39:31,275 INFO L470 AbstractCegarLoop]: Abstraction has 28259 states and 40726 transitions. [2021-11-13 17:39:31,275 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2021-11-13 17:39:31,276 INFO L276 IsEmpty]: Start isEmpty. Operand 28259 states and 40726 transitions. [2021-11-13 17:39:31,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2021-11-13 17:39:31,280 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:39:31,280 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:39:31,280 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-13 17:39:31,281 INFO L402 AbstractCegarLoop]: === Iteration 4 === 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)] === [2021-11-13 17:39:31,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:39:31,281 INFO L85 PathProgramCache]: Analyzing trace with hash 1520107795, now seen corresponding path program 1 times [2021-11-13 17:39:31,282 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:39:31,282 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452644709] [2021-11-13 17:39:31,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:39:31,282 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:39:31,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:39:31,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-13 17:39:31,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:39:31,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:39:31,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:39:31,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-13 17:39:31,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:39:31,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:39:31,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:39:31,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-13 17:39:31,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:39:31,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:39:31,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:39:31,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-13 17:39:31,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:39:31,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:39:31,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:39:31,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-13 17:39:31,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:39:31,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:39:31,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:39:31,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-13 17:39:31,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:39:31,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:39:31,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:39:31,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-13 17:39:31,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:39:31,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:39:31,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:39:31,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-13 17:39:31,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:39:31,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:39:31,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:39:32,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-13 17:39:32,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:39:32,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:39:32,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:39:32,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-13 17:39:32,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:39:32,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:39:32,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:39:32,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-13 17:39:32,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:39:32,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:39:32,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:39:32,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-13 17:39:32,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:39:32,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:39:32,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:39:32,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-11-13 17:39:32,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:39:32,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-11-13 17:39:32,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:39:32,107 INFO L134 CoverageAnalysis]: Checked inductivity of 630 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2021-11-13 17:39:32,107 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:39:32,107 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452644709] [2021-11-13 17:39:32,107 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1452644709] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:39:32,108 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:39:32,108 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-13 17:39:32,108 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43875176] [2021-11-13 17:39:32,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:39:32,109 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 17:39:32,109 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:39:32,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 17:39:32,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-13 17:39:32,110 INFO L87 Difference]: Start difference. First operand 28259 states and 40726 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2021-11-13 17:39:34,253 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:39:36,346 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:39:50,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:39:50,626 INFO L93 Difference]: Finished difference Result 54742 states and 78840 transitions. [2021-11-13 17:39:50,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 17:39:50,627 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 171 [2021-11-13 17:39:50,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:39:50,809 INFO L225 Difference]: With dead ends: 54742 [2021-11-13 17:39:50,809 INFO L226 Difference]: Without dead ends: 26512 [2021-11-13 17:39:50,953 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-13 17:39:50,956 INFO L933 BasicCegarLoop]: 6031 mSDtfsCounter, 4944 mSDsluCounter, 5855 mSDsCounter, 0 mSdLazyCounter, 3617 mSolverCounterSat, 2566 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15268.57ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5831 SdHoareTripleChecker+Valid, 11886 SdHoareTripleChecker+Invalid, 6185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 67.61ms SdHoareTripleChecker+Time, 2566 IncrementalHoareTripleChecker+Valid, 3617 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17488.51ms IncrementalHoareTripleChecker+Time [2021-11-13 17:39:50,958 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5831 Valid, 11886 Invalid, 6185 Unknown, 0 Unchecked, 67.61ms Time], IncrementalHoareTripleChecker [2566 Valid, 3617 Invalid, 2 Unknown, 0 Unchecked, 17488.51ms Time] [2021-11-13 17:39:50,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26512 states. [2021-11-13 17:39:52,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26512 to 24399. [2021-11-13 17:39:52,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24399 states, 16464 states have (on average 1.2868683187560739) internal successors, (21187), 16935 states have internal predecessors, (21187), 6605 states have call successors, (6605), 1294 states have call predecessors, (6605), 1327 states have return successors, (6823), 6520 states have call predecessors, (6823), 6602 states have call successors, (6823) [2021-11-13 17:39:52,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24399 states to 24399 states and 34615 transitions. [2021-11-13 17:39:52,783 INFO L78 Accepts]: Start accepts. Automaton has 24399 states and 34615 transitions. Word has length 171 [2021-11-13 17:39:52,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:39:52,784 INFO L470 AbstractCegarLoop]: Abstraction has 24399 states and 34615 transitions. [2021-11-13 17:39:52,784 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2021-11-13 17:39:52,784 INFO L276 IsEmpty]: Start isEmpty. Operand 24399 states and 34615 transitions. [2021-11-13 17:39:52,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2021-11-13 17:39:52,788 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:39:52,788 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:39:52,788 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-13 17:39:52,789 INFO L402 AbstractCegarLoop]: === Iteration 5 === 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)] === [2021-11-13 17:39:52,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:39:52,790 INFO L85 PathProgramCache]: Analyzing trace with hash -463140959, now seen corresponding path program 1 times [2021-11-13 17:39:52,790 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:39:52,790 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888010205] [2021-11-13 17:39:52,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:39:52,791 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:39:53,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:39:53,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-13 17:39:53,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:39:53,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:39:53,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:39:53,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-13 17:39:53,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:39:53,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:39:53,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:39:53,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-13 17:39:53,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:39:53,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:39:53,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:39:53,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-13 17:39:53,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:39:53,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:39:53,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:39:53,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-13 17:39:53,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:39:53,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:39:53,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:39:53,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-13 17:39:53,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:39:53,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:39:53,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:39:53,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-13 17:39:53,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:39:53,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:39:53,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:39:53,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-13 17:39:53,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:39:53,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:39:53,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:39:53,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-13 17:39:53,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:39:53,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:39:53,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:39:53,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-13 17:39:53,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:39:53,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:39:53,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:39:53,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-13 17:39:53,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:39:53,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:39:53,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:39:53,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-13 17:39:53,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:39:53,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:39:53,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:39:53,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-11-13 17:39:53,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:39:53,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-11-13 17:39:53,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:39:53,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-11-13 17:39:53,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:39:53,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-11-13 17:39:53,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:39:53,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-11-13 17:39:53,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:39:53,631 INFO L134 CoverageAnalysis]: Checked inductivity of 630 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2021-11-13 17:39:53,631 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:39:53,633 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888010205] [2021-11-13 17:39:53,634 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [888010205] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:39:53,634 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:39:53,634 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-13 17:39:53,634 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319137902] [2021-11-13 17:39:53,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:39:53,635 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 17:39:53,635 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:39:53,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 17:39:53,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-13 17:39:53,636 INFO L87 Difference]: Start difference. First operand 24399 states and 34615 transitions. Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-11-13 17:39:55,795 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:39:57,921 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:40:15,960 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:40:16,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:40:16,303 INFO L93 Difference]: Finished difference Result 68487 states and 98054 transitions. [2021-11-13 17:40:16,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 17:40:16,304 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 175 [2021-11-13 17:40:16,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:40:16,562 INFO L225 Difference]: With dead ends: 68487 [2021-11-13 17:40:16,563 INFO L226 Difference]: Without dead ends: 44117 [2021-11-13 17:40:16,668 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-13 17:40:16,671 INFO L933 BasicCegarLoop]: 6088 mSDtfsCounter, 7250 mSDsluCounter, 5823 mSDsCounter, 0 mSdLazyCounter, 4074 mSolverCounterSat, 3891 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18243.37ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 8379 SdHoareTripleChecker+Valid, 11911 SdHoareTripleChecker+Invalid, 7967 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 80.14ms SdHoareTripleChecker+Time, 3891 IncrementalHoareTripleChecker+Valid, 4074 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21186.06ms IncrementalHoareTripleChecker+Time [2021-11-13 17:40:16,672 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8379 Valid, 11911 Invalid, 7967 Unknown, 0 Unchecked, 80.14ms Time], IncrementalHoareTripleChecker [3891 Valid, 4074 Invalid, 2 Unknown, 0 Unchecked, 21186.06ms Time] [2021-11-13 17:40:16,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44117 states. [2021-11-13 17:40:18,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44117 to 40404. [2021-11-13 17:40:19,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40404 states, 27171 states have (on average 1.2822494571418055) internal successors, (34840), 27958 states have internal predecessors, (34840), 11099 states have call successors, (11099), 2084 states have call predecessors, (11099), 2131 states have return successors, (11475), 10928 states have call predecessors, (11475), 11096 states have call successors, (11475) [2021-11-13 17:40:19,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40404 states to 40404 states and 57414 transitions. [2021-11-13 17:40:19,604 INFO L78 Accepts]: Start accepts. Automaton has 40404 states and 57414 transitions. Word has length 175 [2021-11-13 17:40:19,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:40:19,605 INFO L470 AbstractCegarLoop]: Abstraction has 40404 states and 57414 transitions. [2021-11-13 17:40:19,605 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-11-13 17:40:19,605 INFO L276 IsEmpty]: Start isEmpty. Operand 40404 states and 57414 transitions. [2021-11-13 17:40:19,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2021-11-13 17:40:19,610 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:40:19,610 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 12, 12, 12, 12, 12, 12, 4, 4, 4, 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] [2021-11-13 17:40:19,611 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-13 17:40:19,611 INFO L402 AbstractCegarLoop]: === Iteration 6 === 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)] === [2021-11-13 17:40:19,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:40:19,611 INFO L85 PathProgramCache]: Analyzing trace with hash -570410325, now seen corresponding path program 1 times [2021-11-13 17:40:19,612 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:40:19,612 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950111555] [2021-11-13 17:40:19,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:40:19,612 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:40:19,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:40:20,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-13 17:40:20,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:40:20,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:40:20,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:40:20,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-13 17:40:20,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:40:20,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:40:20,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:40:20,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-13 17:40:20,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:40:20,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:40:20,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:40:20,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-13 17:40:20,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:40:20,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:40:20,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:40:20,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-13 17:40:20,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:40:20,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:40:20,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:40:20,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-13 17:40:20,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:40:20,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:40:20,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:40:20,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-13 17:40:20,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:40:20,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:40:20,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:40:20,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-13 17:40:20,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:40:20,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:40:20,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:40:20,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-13 17:40:20,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:40:20,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:40:20,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:40:20,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-13 17:40:20,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:40:20,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:40:20,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:40:20,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-13 17:40:20,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:40:20,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:40:20,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:40:20,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-13 17:40:20,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:40:20,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:40:20,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:40:20,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-11-13 17:40:20,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:40:20,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-13 17:40:20,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:40:20,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-11-13 17:40:20,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:40:20,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-11-13 17:40:20,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:40:20,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2021-11-13 17:40:20,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:40:20,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:40:20,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:40:20,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2021-11-13 17:40:20,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:40:20,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-11-13 17:40:20,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:40:20,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2021-11-13 17:40:20,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:40:20,672 INFO L134 CoverageAnalysis]: Checked inductivity of 786 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 780 trivial. 0 not checked. [2021-11-13 17:40:20,673 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:40:20,673 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950111555] [2021-11-13 17:40:20,673 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [950111555] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:40:20,673 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:40:20,674 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-13 17:40:20,674 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033170674] [2021-11-13 17:40:20,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:40:20,675 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 17:40:20,675 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:40:20,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 17:40:20,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-13 17:40:20,676 INFO L87 Difference]: Start difference. First operand 40404 states and 57414 transitions. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2021-11-13 17:40:22,838 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:40:24,957 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:40:38,261 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:40:46,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:40:46,272 INFO L93 Difference]: Finished difference Result 127667 states and 183043 transitions. [2021-11-13 17:40:46,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 17:40:46,273 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 210 [2021-11-13 17:40:46,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:40:46,885 INFO L225 Difference]: With dead ends: 127667 [2021-11-13 17:40:46,885 INFO L226 Difference]: Without dead ends: 87338 [2021-11-13 17:40:47,253 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-13 17:40:47,255 INFO L933 BasicCegarLoop]: 6118 mSDtfsCounter, 7290 mSDsluCounter, 5892 mSDsCounter, 0 mSdLazyCounter, 4080 mSolverCounterSat, 3894 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19506.76ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 8421 SdHoareTripleChecker+Valid, 12010 SdHoareTripleChecker+Invalid, 7976 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 84.99ms SdHoareTripleChecker+Time, 3894 IncrementalHoareTripleChecker+Valid, 4080 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22790.00ms IncrementalHoareTripleChecker+Time [2021-11-13 17:40:47,256 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8421 Valid, 12010 Invalid, 7976 Unknown, 0 Unchecked, 84.99ms Time], IncrementalHoareTripleChecker [3894 Valid, 4080 Invalid, 2 Unknown, 0 Unchecked, 22790.00ms Time] [2021-11-13 17:40:47,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87338 states. [2021-11-13 17:40:51,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87338 to 79983. [2021-11-13 17:40:51,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79983 states, 53795 states have (on average 1.283241936982991) internal successors, (69032), 55327 states have internal predecessors, (69032), 21972 states have call successors, (21972), 4118 states have call predecessors, (21972), 4213 states have return successors, (22715), 21671 states have call predecessors, (22715), 21969 states have call successors, (22715) [2021-11-13 17:40:52,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79983 states to 79983 states and 113719 transitions. [2021-11-13 17:40:52,219 INFO L78 Accepts]: Start accepts. Automaton has 79983 states and 113719 transitions. Word has length 210 [2021-11-13 17:40:52,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:40:52,224 INFO L470 AbstractCegarLoop]: Abstraction has 79983 states and 113719 transitions. [2021-11-13 17:40:52,224 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2021-11-13 17:40:52,224 INFO L276 IsEmpty]: Start isEmpty. Operand 79983 states and 113719 transitions. [2021-11-13 17:40:52,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2021-11-13 17:40:52,228 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:40:52,229 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 12, 12, 12, 12, 12, 12, 4, 4, 4, 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] [2021-11-13 17:40:52,229 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-13 17:40:52,229 INFO L402 AbstractCegarLoop]: === Iteration 7 === 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)] === [2021-11-13 17:40:52,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:40:52,230 INFO L85 PathProgramCache]: Analyzing trace with hash -147708499, now seen corresponding path program 1 times [2021-11-13 17:40:52,230 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:40:52,230 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908835516] [2021-11-13 17:40:52,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:40:52,231 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:40:52,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:40:52,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-13 17:40:52,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:40:52,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:40:52,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:40:52,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-13 17:40:52,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:40:52,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:40:52,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:40:52,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-13 17:40:52,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:40:52,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:40:52,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:40:52,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-13 17:40:52,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:40:52,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:40:52,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:40:52,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-13 17:40:52,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:40:52,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:40:52,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:40:52,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-13 17:40:52,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:40:53,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:40:53,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:40:53,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-13 17:40:53,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:40:53,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:40:53,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:40:53,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-13 17:40:53,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:40:53,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:40:53,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:40:53,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-13 17:40:53,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:40:53,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:40:53,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:40:53,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-13 17:40:53,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:40:53,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:40:53,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:40:53,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-13 17:40:53,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:40:53,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:40:53,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:40:53,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-13 17:40:53,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:40:53,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:40:53,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:40:53,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-11-13 17:40:53,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:40:53,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-13 17:40:53,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:40:53,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-11-13 17:40:53,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:40:53,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-11-13 17:40:53,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:40:53,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2021-11-13 17:40:53,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:40:53,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:40:53,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:40:53,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2021-11-13 17:40:53,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:40:53,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-11-13 17:40:53,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:40:53,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2021-11-13 17:40:53,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:40:53,472 INFO L134 CoverageAnalysis]: Checked inductivity of 786 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 786 trivial. 0 not checked. [2021-11-13 17:40:53,473 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:40:53,473 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908835516] [2021-11-13 17:40:53,473 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1908835516] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:40:53,473 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:40:53,473 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-13 17:40:53,474 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64212346] [2021-11-13 17:40:53,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:40:53,475 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 17:40:53,475 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:40:53,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 17:40:53,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-13 17:40:53,476 INFO L87 Difference]: Start difference. First operand 79983 states and 113719 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (23), 4 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-13 17:40:55,648 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:41:22,297 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:41:24,070 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:41:25,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:41:25,749 INFO L93 Difference]: Finished difference Result 160181 states and 230315 transitions. [2021-11-13 17:41:25,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-13 17:41:25,755 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (23), 4 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 210 [2021-11-13 17:41:25,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:41:26,477 INFO L225 Difference]: With dead ends: 160181 [2021-11-13 17:41:26,477 INFO L226 Difference]: Without dead ends: 160179 [2021-11-13 17:41:26,541 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-11-13 17:41:26,542 INFO L933 BasicCegarLoop]: 5519 mSDtfsCounter, 7138 mSDsluCounter, 14005 mSDsCounter, 0 mSdLazyCounter, 7850 mSolverCounterSat, 3773 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23728.92ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 8142 SdHoareTripleChecker+Valid, 19524 SdHoareTripleChecker+Invalid, 11624 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 150.00ms SdHoareTripleChecker+Time, 3773 IncrementalHoareTripleChecker+Valid, 7850 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27588.51ms IncrementalHoareTripleChecker+Time [2021-11-13 17:41:26,543 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8142 Valid, 19524 Invalid, 11624 Unknown, 0 Unchecked, 150.00ms Time], IncrementalHoareTripleChecker [3773 Valid, 7850 Invalid, 1 Unknown, 0 Unchecked, 27588.51ms Time] [2021-11-13 17:41:26,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160179 states. [2021-11-13 17:41:32,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160179 to 146793. [2021-11-13 17:41:33,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146793 states, 99124 states have (on average 1.2840280860336548) internal successors, (127278), 102134 states have internal predecessors, (127278), 39731 states have call successors, (39731), 7997 states have call predecessors, (39731), 7935 states have return successors, (41323), 38595 states have call predecessors, (41323), 39725 states have call successors, (41323) [2021-11-13 17:41:34,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146793 states to 146793 states and 208332 transitions. [2021-11-13 17:41:34,464 INFO L78 Accepts]: Start accepts. Automaton has 146793 states and 208332 transitions. Word has length 210 [2021-11-13 17:41:34,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:41:34,466 INFO L470 AbstractCegarLoop]: Abstraction has 146793 states and 208332 transitions. [2021-11-13 17:41:34,466 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (23), 4 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-13 17:41:34,466 INFO L276 IsEmpty]: Start isEmpty. Operand 146793 states and 208332 transitions. [2021-11-13 17:41:34,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2021-11-13 17:41:34,469 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:41:34,470 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 12, 12, 12, 12, 12, 12, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:41:34,470 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-13 17:41:34,470 INFO L402 AbstractCegarLoop]: === Iteration 8 === 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)] === [2021-11-13 17:41:34,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:41:34,471 INFO L85 PathProgramCache]: Analyzing trace with hash -712483375, now seen corresponding path program 1 times [2021-11-13 17:41:34,471 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:41:34,471 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600588823] [2021-11-13 17:41:34,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:41:34,472 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:41:34,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:41:35,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-13 17:41:35,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:41:35,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:41:35,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:41:35,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-13 17:41:35,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:41:35,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:41:35,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:41:35,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-13 17:41:35,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:41:35,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:41:35,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:41:35,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-13 17:41:35,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:41:35,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:41:35,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:41:35,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-13 17:41:35,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:41:35,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:41:35,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:41:35,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-13 17:41:35,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:41:35,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:41:35,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:41:35,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-13 17:41:35,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:41:35,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:41:35,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:41:35,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-13 17:41:35,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:41:35,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:41:35,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:41:35,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-13 17:41:35,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:41:35,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:41:35,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:41:35,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-13 17:41:35,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:41:35,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:41:35,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:41:35,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-13 17:41:35,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:41:35,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:41:35,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:41:35,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-13 17:41:35,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:41:35,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:41:35,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:41:35,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-11-13 17:41:35,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:41:35,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-13 17:41:35,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:41:35,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-11-13 17:41:35,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:41:35,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-11-13 17:41:36,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:41:36,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2021-11-13 17:41:36,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:41:36,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:41:36,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:41:36,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2021-11-13 17:41:36,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:41:36,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-11-13 17:41:36,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:41:36,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2021-11-13 17:41:36,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:41:36,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-11-13 17:41:36,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:41:36,145 INFO L134 CoverageAnalysis]: Checked inductivity of 788 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 786 trivial. 0 not checked. [2021-11-13 17:41:36,145 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:41:36,146 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600588823] [2021-11-13 17:41:36,146 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [600588823] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:41:36,146 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:41:36,146 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-13 17:41:36,147 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748184888] [2021-11-13 17:41:36,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:41:36,148 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 17:41:36,148 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:41:36,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 17:41:36,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-13 17:41:36,149 INFO L87 Difference]: Start difference. First operand 146793 states and 208332 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-13 17:41:38,314 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:41:56,034 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:41:57,240 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:41:58,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:41:58,715 INFO L93 Difference]: Finished difference Result 160123 states and 230259 transitions. [2021-11-13 17:41:58,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-13 17:41:58,716 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 215 [2021-11-13 17:41:58,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:41:59,463 INFO L225 Difference]: With dead ends: 160123 [2021-11-13 17:41:59,463 INFO L226 Difference]: Without dead ends: 160121 [2021-11-13 17:41:59,526 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-13 17:41:59,527 INFO L933 BasicCegarLoop]: 4981 mSDtfsCounter, 5822 mSDsluCounter, 9727 mSDsCounter, 0 mSdLazyCounter, 4483 mSolverCounterSat, 2881 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15256.61ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6410 SdHoareTripleChecker+Valid, 14708 SdHoareTripleChecker+Invalid, 7365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 83.32ms SdHoareTripleChecker+Time, 2881 IncrementalHoareTripleChecker+Valid, 4483 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17560.55ms IncrementalHoareTripleChecker+Time [2021-11-13 17:41:59,528 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6410 Valid, 14708 Invalid, 7365 Unknown, 0 Unchecked, 83.32ms Time], IncrementalHoareTripleChecker [2881 Valid, 4483 Invalid, 1 Unknown, 0 Unchecked, 17560.55ms Time] [2021-11-13 17:41:59,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160121 states. [2021-11-13 17:42:06,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160121 to 146801. [2021-11-13 17:42:06,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146801 states, 99130 states have (on average 1.2840108947846263) internal successors, (127284), 102140 states have internal predecessors, (127284), 39731 states have call successors, (39731), 7999 states have call predecessors, (39731), 7937 states have return successors, (41323), 38595 states have call predecessors, (41323), 39725 states have call successors, (41323) [2021-11-13 17:42:07,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146801 states to 146801 states and 208338 transitions. [2021-11-13 17:42:07,824 INFO L78 Accepts]: Start accepts. Automaton has 146801 states and 208338 transitions. Word has length 215 [2021-11-13 17:42:07,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:42:07,824 INFO L470 AbstractCegarLoop]: Abstraction has 146801 states and 208338 transitions. [2021-11-13 17:42:07,824 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-13 17:42:07,824 INFO L276 IsEmpty]: Start isEmpty. Operand 146801 states and 208338 transitions. [2021-11-13 17:42:07,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2021-11-13 17:42:07,828 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:42:07,828 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 12, 12, 12, 12, 12, 12, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:42:07,829 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-13 17:42:07,829 INFO L402 AbstractCegarLoop]: === Iteration 9 === 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)] === [2021-11-13 17:42:07,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:42:07,830 INFO L85 PathProgramCache]: Analyzing trace with hash 1239462893, now seen corresponding path program 1 times [2021-11-13 17:42:07,830 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:42:07,830 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384103974] [2021-11-13 17:42:07,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:42:07,831 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:42:08,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:42:08,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-13 17:42:08,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:42:08,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:42:08,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:42:08,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-13 17:42:08,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:42:08,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:42:08,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:42:08,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-13 17:42:08,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:42:08,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:42:08,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:42:08,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-13 17:42:08,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:42:08,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:42:08,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:42:08,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-13 17:42:08,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:42:08,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:42:08,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:42:08,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-13 17:42:08,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:42:08,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:42:08,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:42:08,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-13 17:42:08,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:42:08,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:42:08,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:42:08,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-13 17:42:08,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:42:08,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:42:08,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:42:08,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-13 17:42:08,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:42:08,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:42:08,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:42:08,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-13 17:42:08,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:42:08,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:42:08,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:42:08,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-13 17:42:08,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:42:08,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:42:08,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:42:08,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-13 17:42:08,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:42:08,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:42:08,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:42:08,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-11-13 17:42:08,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:42:08,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-13 17:42:08,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:42:08,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-11-13 17:42:08,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:42:08,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-11-13 17:42:08,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:42:08,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2021-11-13 17:42:08,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:42:08,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:42:08,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:42:08,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2021-11-13 17:42:08,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:42:08,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-11-13 17:42:08,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:42:08,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2021-11-13 17:42:08,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:42:08,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-11-13 17:42:08,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:42:08,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2021-11-13 17:42:08,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:42:08,957 INFO L134 CoverageAnalysis]: Checked inductivity of 794 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 790 trivial. 0 not checked. [2021-11-13 17:42:08,958 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:42:08,958 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384103974] [2021-11-13 17:42:08,958 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [384103974] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:42:08,958 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:42:08,959 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-13 17:42:08,959 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196845229] [2021-11-13 17:42:08,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:42:08,961 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 17:42:08,961 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:42:08,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 17:42:08,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-13 17:42:08,962 INFO L87 Difference]: Start difference. First operand 146801 states and 208338 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-11-13 17:42:11,132 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:42:30,404 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:42:32,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:42:32,516 INFO L93 Difference]: Finished difference Result 160131 states and 230265 transitions. [2021-11-13 17:42:32,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-13 17:42:32,518 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 220 [2021-11-13 17:42:32,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:42:33,254 INFO L225 Difference]: With dead ends: 160131 [2021-11-13 17:42:33,254 INFO L226 Difference]: Without dead ends: 160129 [2021-11-13 17:42:33,325 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-13 17:42:33,326 INFO L933 BasicCegarLoop]: 4960 mSDtfsCounter, 5839 mSDsluCounter, 9684 mSDsCounter, 0 mSdLazyCounter, 4483 mSolverCounterSat, 2886 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15542.18ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6428 SdHoareTripleChecker+Valid, 14644 SdHoareTripleChecker+Invalid, 7370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 81.62ms SdHoareTripleChecker+Time, 2886 IncrementalHoareTripleChecker+Valid, 4483 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17967.55ms IncrementalHoareTripleChecker+Time [2021-11-13 17:42:33,327 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6428 Valid, 14644 Invalid, 7370 Unknown, 0 Unchecked, 81.62ms Time], IncrementalHoareTripleChecker [2886 Valid, 4483 Invalid, 1 Unknown, 0 Unchecked, 17967.55ms Time] [2021-11-13 17:42:33,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160129 states. [2021-11-13 17:42:40,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160129 to 146809. [2021-11-13 17:42:40,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146809 states, 99136 states have (on average 1.2839937056165267) internal successors, (127290), 102146 states have internal predecessors, (127290), 39731 states have call successors, (39731), 8001 states have call predecessors, (39731), 7939 states have return successors, (41323), 38595 states have call predecessors, (41323), 39725 states have call successors, (41323)