./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-e1000-e1000.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c3fed411 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-e1000-e1000.cil.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 1b84ae01ff77d37e9299320c753590c425a9f784ed44d0a112a3afe6584a446b --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-18 14:58:38,161 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-18 14:58:38,169 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-18 14:58:38,213 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-18 14:58:38,214 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-18 14:58:38,218 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-18 14:58:38,220 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-18 14:58:38,222 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-18 14:58:38,225 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-18 14:58:38,229 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-18 14:58:38,230 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-18 14:58:38,231 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-18 14:58:38,232 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-18 14:58:38,234 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-18 14:58:38,235 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-18 14:58:38,237 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-18 14:58:38,239 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-18 14:58:38,239 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-18 14:58:38,244 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-18 14:58:38,246 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-18 14:58:38,250 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-18 14:58:38,252 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-18 14:58:38,253 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-18 14:58:38,254 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-18 14:58:38,258 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-18 14:58:38,258 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-18 14:58:38,259 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-18 14:58:38,260 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-18 14:58:38,261 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-18 14:58:38,261 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-18 14:58:38,262 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-18 14:58:38,263 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-18 14:58:38,264 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-18 14:58:38,265 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-18 14:58:38,266 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-18 14:58:38,266 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-18 14:58:38,267 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-18 14:58:38,267 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-18 14:58:38,267 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-18 14:58:38,268 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-18 14:58:38,269 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-18 14:58:38,270 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-18 14:58:38,311 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-18 14:58:38,311 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-18 14:58:38,312 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-18 14:58:38,312 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-18 14:58:38,313 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-18 14:58:38,313 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-18 14:58:38,314 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-18 14:58:38,314 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-18 14:58:38,314 INFO L138 SettingsManager]: * Use SBE=true [2021-12-18 14:58:38,314 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-18 14:58:38,315 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-18 14:58:38,316 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-18 14:58:38,316 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-18 14:58:38,316 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-18 14:58:38,316 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-18 14:58:38,316 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-18 14:58:38,317 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-18 14:58:38,317 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-18 14:58:38,317 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-18 14:58:38,317 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-18 14:58:38,317 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-18 14:58:38,318 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-18 14:58:38,318 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-18 14:58:38,318 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-18 14:58:38,318 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-18 14:58:38,318 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-18 14:58:38,319 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-18 14:58:38,319 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-18 14:58:38,319 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-18 14:58:38,319 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-18 14:58:38,319 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-18 14:58:38,320 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1b84ae01ff77d37e9299320c753590c425a9f784ed44d0a112a3afe6584a446b [2021-12-18 14:58:38,590 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-18 14:58:38,621 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-18 14:58:38,623 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-18 14:58:38,624 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-18 14:58:38,625 INFO L275 PluginConnector]: CDTParser initialized [2021-12-18 14:58:38,626 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-e1000-e1000.cil.i [2021-12-18 14:58:38,695 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06481ac6c/74265d3421c84cad844671419eaae241/FLAG8aa0da77b [2021-12-18 14:58:39,770 INFO L306 CDTParser]: Found 1 translation units. [2021-12-18 14:58:39,771 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-e1000-e1000.cil.i [2021-12-18 14:58:39,863 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06481ac6c/74265d3421c84cad844671419eaae241/FLAG8aa0da77b [2021-12-18 14:58:40,040 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06481ac6c/74265d3421c84cad844671419eaae241 [2021-12-18 14:58:40,043 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-18 14:58:40,044 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-18 14:58:40,045 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-18 14:58:40,045 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-18 14:58:40,048 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-18 14:58:40,049 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 02:58:40" (1/1) ... [2021-12-18 14:58:40,050 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@734e9406 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:58:40, skipping insertion in model container [2021-12-18 14:58:40,050 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 02:58:40" (1/1) ... [2021-12-18 14:58:40,055 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-18 14:58:40,304 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-18 14:58:50,699 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-e1000-e1000.cil.i[945328,945341] [2021-12-18 14:58:50,703 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-e1000-e1000.cil.i[945497,945510] [2021-12-18 14:58:50,704 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-e1000-e1000.cil.i[945664,945677] [2021-12-18 14:58:50,704 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-e1000-e1000.cil.i[945832,945845] [2021-12-18 14:58:50,738 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-18 14:58:50,796 INFO L203 MainTranslator]: Completed pre-run [2021-12-18 14:58:51,796 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-e1000-e1000.cil.i[945328,945341] [2021-12-18 14:58:51,798 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-e1000-e1000.cil.i[945497,945510] [2021-12-18 14:58:51,799 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-e1000-e1000.cil.i[945664,945677] [2021-12-18 14:58:51,799 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-e1000-e1000.cil.i[945832,945845] [2021-12-18 14:58:51,811 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-18 14:58:52,522 INFO L208 MainTranslator]: Completed translation [2021-12-18 14:58:52,524 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:58:52 WrapperNode [2021-12-18 14:58:52,524 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-18 14:58:52,526 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-18 14:58:52,526 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-18 14:58:52,526 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-18 14:58:52,534 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:58:52" (1/1) ... [2021-12-18 14:58:52,962 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:58:52" (1/1) ... [2021-12-18 14:58:53,939 INFO L137 Inliner]: procedures = 856, calls = 16450, calls flagged for inlining = 419, calls inlined = 352, statements flattened = 29361 [2021-12-18 14:58:53,941 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-18 14:58:53,942 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-18 14:58:53,942 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-18 14:58:53,943 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-18 14:58:53,952 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:58:52" (1/1) ... [2021-12-18 14:58:53,953 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:58:52" (1/1) ... [2021-12-18 14:58:54,136 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:58:52" (1/1) ... [2021-12-18 14:58:54,138 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:58:52" (1/1) ... [2021-12-18 14:58:54,705 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:58:52" (1/1) ... [2021-12-18 14:58:54,776 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:58:52" (1/1) ... [2021-12-18 14:58:54,900 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:58:52" (1/1) ... [2021-12-18 14:58:55,122 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-18 14:58:55,123 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-18 14:58:55,124 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-18 14:58:55,125 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-18 14:58:55,126 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:58:52" (1/1) ... [2021-12-18 14:58:55,134 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-18 14:58:55,145 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 14:58:55,167 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-18 14:58:55,181 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-18 14:58:55,213 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_config_fc_after_link_up [2021-12-18 14:58:55,213 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_config_fc_after_link_up [2021-12-18 14:58:55,213 INFO L130 BoogieDeclarations]: Found specification of procedure ipv6_hdr [2021-12-18 14:58:55,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ipv6_hdr [2021-12-18 14:58:55,213 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_config_collision_dist [2021-12-18 14:58:55,214 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_config_collision_dist [2021-12-18 14:58:55,214 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_raise_ee_clk [2021-12-18 14:58:55,214 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_raise_ee_clk [2021-12-18 14:58:55,214 INFO L130 BoogieDeclarations]: Found specification of procedure device_set_wakeup_enable [2021-12-18 14:58:55,214 INFO L138 BoogieDeclarations]: Found implementation of procedure device_set_wakeup_enable [2021-12-18 14:58:55,214 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_skb [2021-12-18 14:58:55,214 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_skb [2021-12-18 14:58:55,215 INFO L130 BoogieDeclarations]: Found specification of procedure reg_pattern_test [2021-12-18 14:58:55,215 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_pattern_test [2021-12-18 14:58:55,215 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-12-18 14:58:55,215 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-12-18 14:58:55,215 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2021-12-18 14:58:55,215 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2021-12-18 14:58:55,215 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-12-18 14:58:55,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-12-18 14:58:55,216 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_unmap_and_free_tx_resource [2021-12-18 14:58:55,216 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_unmap_and_free_tx_resource [2021-12-18 14:58:55,216 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-12-18 14:58:55,216 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-12-18 14:58:55,216 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-12-18 14:58:55,216 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-12-18 14:58:55,217 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_setup_rctl [2021-12-18 14:58:55,217 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_setup_rctl [2021-12-18 14:58:55,217 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2021-12-18 14:58:55,217 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2021-12-18 14:58:55,217 INFO L130 BoogieDeclarations]: Found specification of procedure skb_set_tail_pointer [2021-12-18 14:58:55,217 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_set_tail_pointer [2021-12-18 14:58:55,217 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_reset [2021-12-18 14:58:55,218 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_reset [2021-12-18 14:58:55,218 INFO L130 BoogieDeclarations]: Found specification of procedure dma_zalloc_coherent [2021-12-18 14:58:55,218 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_zalloc_coherent [2021-12-18 14:58:55,219 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-12-18 14:58:55,219 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-12-18 14:58:55,219 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-12-18 14:58:55,219 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-12-18 14:58:55,220 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-18 14:58:55,220 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-18 14:58:55,220 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-12-18 14:58:55,220 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-12-18 14:58:55,220 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_write_phy_reg [2021-12-18 14:58:55,220 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_write_phy_reg [2021-12-18 14:58:55,220 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_speed_and_duplex [2021-12-18 14:58:55,221 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_speed_and_duplex [2021-12-18 14:58:55,221 INFO L130 BoogieDeclarations]: Found specification of procedure find_next_bit [2021-12-18 14:58:55,221 INFO L138 BoogieDeclarations]: Found implementation of procedure find_next_bit [2021-12-18 14:58:55,221 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2021-12-18 14:58:55,222 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2021-12-18 14:58:55,222 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-12-18 14:58:55,223 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-12-18 14:58:55,223 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-12-18 14:58:55,223 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-12-18 14:58:55,223 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_check_for_link [2021-12-18 14:58:55,223 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_check_for_link [2021-12-18 14:58:55,224 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_irq [2021-12-18 14:58:55,224 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_irq [2021-12-18 14:58:55,224 INFO L130 BoogieDeclarations]: Found specification of procedure pci_save_state [2021-12-18 14:58:55,224 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_save_state [2021-12-18 14:58:55,225 INFO L130 BoogieDeclarations]: Found specification of procedure __e1000_vlan_mode [2021-12-18 14:58:55,225 INFO L138 BoogieDeclarations]: Found implementation of procedure __e1000_vlan_mode [2021-12-18 14:58:55,225 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-12-18 14:58:55,225 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-12-18 14:58:55,226 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_config_dsp_after_link_change [2021-12-18 14:58:55,226 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_config_dsp_after_link_change [2021-12-18 14:58:55,226 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-12-18 14:58:55,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-12-18 14:58:55,226 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_maybe_stop_tx [2021-12-18 14:58:55,226 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_maybe_stop_tx [2021-12-18 14:58:55,227 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-18 14:58:55,227 INFO L130 BoogieDeclarations]: Found specification of procedure vzalloc [2021-12-18 14:58:55,227 INFO L138 BoogieDeclarations]: Found implementation of procedure vzalloc [2021-12-18 14:58:55,227 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_vlan_used [2021-12-18 14:58:55,227 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_vlan_used [2021-12-18 14:58:55,227 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_force_mac_fc [2021-12-18 14:58:55,227 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_force_mac_fc [2021-12-18 14:58:55,227 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2021-12-18 14:58:55,228 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2021-12-18 14:58:55,228 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-12-18 14:58:55,228 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-12-18 14:58:55,229 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_leave_82542_rst [2021-12-18 14:58:55,229 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_leave_82542_rst [2021-12-18 14:58:55,229 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-12-18 14:58:55,229 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-12-18 14:58:55,229 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_setup_all_tx_resources [2021-12-18 14:58:55,229 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_setup_all_tx_resources [2021-12-18 14:58:55,230 INFO L130 BoogieDeclarations]: Found specification of procedure napi_enable [2021-12-18 14:58:55,230 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_enable [2021-12-18 14:58:55,230 INFO L130 BoogieDeclarations]: Found specification of procedure reg_set_and_check [2021-12-18 14:58:55,231 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_set_and_check [2021-12-18 14:58:55,231 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-12-18 14:58:55,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-12-18 14:58:55,231 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-18 14:58:55,231 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_netpoll [2021-12-18 14:58:55,231 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_netpoll [2021-12-18 14:58:55,231 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-18 14:58:55,231 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-12-18 14:58:55,232 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-12-18 14:58:55,232 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-12-18 14:58:55,232 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-12-18 14:58:55,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-18 14:58:55,232 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_set_rx_mode [2021-12-18 14:58:55,232 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_set_rx_mode [2021-12-18 14:58:55,233 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-18 14:58:55,233 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headlen [2021-12-18 14:58:55,233 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headlen [2021-12-18 14:58:55,233 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_hw_reset [2021-12-18 14:58:55,233 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_hw_reset [2021-12-18 14:58:55,234 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-12-18 14:58:55,234 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-12-18 14:58:55,237 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_shift_out_ee_bits [2021-12-18 14:58:55,237 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_shift_out_ee_bits [2021-12-18 14:58:55,237 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-18 14:58:55,237 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-18 14:58:55,238 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_lower_ee_clk [2021-12-18 14:58:55,238 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_lower_ee_clk [2021-12-18 14:58:55,238 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-12-18 14:58:55,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-12-18 14:58:55,239 INFO L130 BoogieDeclarations]: Found specification of procedure device_can_wakeup [2021-12-18 14:58:55,244 INFO L138 BoogieDeclarations]: Found implementation of procedure device_can_wakeup [2021-12-18 14:58:55,244 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_selected_regions [2021-12-18 14:58:55,245 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_selected_regions [2021-12-18 14:58:55,245 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-12-18 14:58:55,245 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-12-18 14:58:55,245 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_eeprom [2021-12-18 14:58:55,245 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_eeprom [2021-12-18 14:58:55,245 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_enter_82542_rst [2021-12-18 14:58:55,245 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_enter_82542_rst [2021-12-18 14:58:55,245 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tail_pointer [2021-12-18 14:58:55,246 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tail_pointer [2021-12-18 14:58:55,246 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-18 14:58:55,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-18 14:58:55,246 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_power_down_phy [2021-12-18 14:58:55,246 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_power_down_phy [2021-12-18 14:58:55,246 INFO L130 BoogieDeclarations]: Found specification of procedure pci_select_bars [2021-12-18 14:58:55,246 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_select_bars [2021-12-18 14:58:55,246 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_spi_eeprom_ready [2021-12-18 14:58:55,246 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_spi_eeprom_ready [2021-12-18 14:58:55,247 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_pci_clear_mwi [2021-12-18 14:58:55,247 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_pci_clear_mwi [2021-12-18 14:58:55,247 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-12-18 14:58:55,247 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-12-18 14:58:55,247 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_power_up_phy [2021-12-18 14:58:55,247 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_power_up_phy [2021-12-18 14:58:55,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-18 14:58:55,247 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-12-18 14:58:55,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-12-18 14:58:55,248 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_write_phy_reg_ex [2021-12-18 14:58:55,248 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_write_phy_reg_ex [2021-12-18 14:58:55,248 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-12-18 14:58:55,248 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-12-18 14:58:55,248 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-12-18 14:58:55,248 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-12-18 14:58:55,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-12-18 14:58:55,249 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_io_resume [2021-12-18 14:58:55,249 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_io_resume [2021-12-18 14:58:55,249 INFO L130 BoogieDeclarations]: Found specification of procedure ip_hdr [2021-12-18 14:58:55,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ip_hdr [2021-12-18 14:58:55,249 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2021-12-18 14:58:55,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2021-12-18 14:58:55,249 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-18 14:58:55,249 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-18 14:58:55,250 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_raise_mdi_clk [2021-12-18 14:58:55,250 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_raise_mdi_clk [2021-12-18 14:58:55,250 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_config_mac_to_phy [2021-12-18 14:58:55,250 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_config_mac_to_phy [2021-12-18 14:58:55,250 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb_ip_align [2021-12-18 14:58:55,250 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb_ip_align [2021-12-18 14:58:55,250 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2021-12-18 14:58:55,250 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2021-12-18 14:58:55,250 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_reset_clk_and_crs [2021-12-18 14:58:55,251 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_reset_clk_and_crs [2021-12-18 14:58:55,251 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2021-12-18 14:58:55,251 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2021-12-18 14:58:55,251 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2021-12-18 14:58:55,251 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2021-12-18 14:58:55,251 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-18 14:58:55,251 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-12-18 14:58:55,251 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-12-18 14:58:55,252 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_regs_len [2021-12-18 14:58:55,252 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_regs_len [2021-12-18 14:58:55,252 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-18 14:58:55,252 INFO L130 BoogieDeclarations]: Found specification of procedure put_page [2021-12-18 14:58:55,253 INFO L138 BoogieDeclarations]: Found implementation of procedure put_page [2021-12-18 14:58:55,253 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_all_tx_resources [2021-12-18 14:58:55,253 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_all_tx_resources [2021-12-18 14:58:55,254 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_setup_autoneg [2021-12-18 14:58:55,254 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_setup_autoneg [2021-12-18 14:58:55,254 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_update_mng_vlan [2021-12-18 14:58:55,254 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_update_mng_vlan [2021-12-18 14:58:55,254 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_vlan_filter_on_off [2021-12-18 14:58:55,254 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_vlan_filter_on_off [2021-12-18 14:58:55,254 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2021-12-18 14:58:55,254 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2021-12-18 14:58:55,255 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_nway_reset [2021-12-18 14:58:55,255 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_nway_reset [2021-12-18 14:58:55,255 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-12-18 14:58:55,255 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-12-18 14:58:55,255 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-12-18 14:58:55,255 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-12-18 14:58:55,255 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_clean_all_rx_rings [2021-12-18 14:58:55,255 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_clean_all_rx_rings [2021-12-18 14:58:55,256 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_reinit_locked [2021-12-18 14:58:55,256 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_reinit_locked [2021-12-18 14:58:55,256 INFO L130 BoogieDeclarations]: Found specification of procedure find_first_bit [2021-12-18 14:58:55,256 INFO L138 BoogieDeclarations]: Found implementation of procedure find_first_bit [2021-12-18 14:58:55,256 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_read_phy_reg [2021-12-18 14:58:55,256 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_read_phy_reg [2021-12-18 14:58:55,256 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_all_rx_resources [2021-12-18 14:58:55,256 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_all_rx_resources [2021-12-18 14:58:55,257 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2021-12-18 14:58:55,257 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2021-12-18 14:58:55,257 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_copper_link_rtl_setup [2021-12-18 14:58:55,257 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_copper_link_rtl_setup [2021-12-18 14:58:55,257 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_desc_rings [2021-12-18 14:58:55,257 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_desc_rings [2021-12-18 14:58:55,257 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_offset [2021-12-18 14:58:55,257 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_offset [2021-12-18 14:58:55,257 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-12-18 14:58:55,258 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-12-18 14:58:55,258 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-18 14:58:55,258 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_check_64k_bound [2021-12-18 14:58:55,258 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_check_64k_bound [2021-12-18 14:58:55,258 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-18 14:58:55,258 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-18 14:58:55,258 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_88 [2021-12-18 14:58:55,258 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_88 [2021-12-18 14:58:55,259 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_request_irq [2021-12-18 14:58:55,259 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_request_irq [2021-12-18 14:58:55,259 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2021-12-18 14:58:55,259 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2021-12-18 14:58:55,259 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_release_eeprom [2021-12-18 14:58:55,259 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_release_eeprom [2021-12-18 14:58:55,259 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_reset_hw [2021-12-18 14:58:55,259 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_reset_hw [2021-12-18 14:58:55,259 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_irq_disable [2021-12-18 14:58:55,261 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_irq_disable [2021-12-18 14:58:55,263 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdrlen [2021-12-18 14:58:55,264 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdrlen [2021-12-18 14:58:55,264 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_clean_tx_ring [2021-12-18 14:58:55,264 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_clean_tx_ring [2021-12-18 14:58:55,264 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2021-12-18 14:58:55,264 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2021-12-18 14:58:55,264 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_init_manageability [2021-12-18 14:58:55,264 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_init_manageability [2021-12-18 14:58:55,265 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-12-18 14:58:55,266 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-12-18 14:58:55,266 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2021-12-18 14:58:55,266 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2021-12-18 14:58:55,266 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2021-12-18 14:58:55,266 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_page [2021-12-18 14:58:55,267 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_page [2021-12-18 14:58:55,267 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_clean_rx_ring [2021-12-18 14:58:55,267 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_clean_rx_ring [2021-12-18 14:58:55,267 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2021-12-18 14:58:55,267 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2021-12-18 14:58:55,267 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_91 [2021-12-18 14:58:55,267 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_91 [2021-12-18 14:58:55,267 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-18 14:58:55,268 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-18 14:58:55,268 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_82 [2021-12-18 14:58:55,268 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_82 [2021-12-18 14:58:55,268 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2021-12-18 14:58:55,268 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2021-12-18 14:58:55,268 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_set_eeprom [2021-12-18 14:58:55,268 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_set_eeprom [2021-12-18 14:58:55,268 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-18 14:58:55,268 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-18 14:58:55,269 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_release_manageability [2021-12-18 14:58:55,269 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_release_manageability [2021-12-18 14:58:55,269 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_shift_in_ee_bits [2021-12-18 14:58:55,269 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_shift_in_ee_bits [2021-12-18 14:58:55,269 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_down_and_stop [2021-12-18 14:58:55,269 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_down_and_stop [2021-12-18 14:58:55,269 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-12-18 14:58:55,269 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-12-18 14:58:55,270 INFO L130 BoogieDeclarations]: Found specification of procedure usleep_range [2021-12-18 14:58:55,270 INFO L138 BoogieDeclarations]: Found implementation of procedure usleep_range [2021-12-18 14:58:55,270 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_page [2021-12-18 14:58:55,270 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_page [2021-12-18 14:58:55,270 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2021-12-18 14:58:55,270 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2021-12-18 14:58:55,270 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_get_info [2021-12-18 14:58:55,270 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_get_info [2021-12-18 14:58:55,270 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_do_read_eeprom [2021-12-18 14:58:55,271 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_do_read_eeprom [2021-12-18 14:58:55,271 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_rar_set [2021-12-18 14:58:55,271 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_rar_set [2021-12-18 14:58:55,271 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq_83 [2021-12-18 14:58:55,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq_83 [2021-12-18 14:58:55,271 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_init_eeprom_params [2021-12-18 14:58:55,271 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_init_eeprom_params [2021-12-18 14:58:55,271 INFO L130 BoogieDeclarations]: Found specification of procedure phys_to_virt [2021-12-18 14:58:55,271 INFO L138 BoogieDeclarations]: Found implementation of procedure phys_to_virt [2021-12-18 14:58:55,272 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-12-18 14:58:55,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-12-18 14:58:55,272 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2021-12-18 14:58:55,272 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2021-12-18 14:58:55,272 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-12-18 14:58:55,272 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-12-18 14:58:55,272 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-12-18 14:58:55,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-12-18 14:58:55,272 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2021-12-18 14:58:55,273 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2021-12-18 14:58:55,273 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-18 14:58:55,273 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_standby_eeprom [2021-12-18 14:58:55,273 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_standby_eeprom [2021-12-18 14:58:55,273 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_configure_rx [2021-12-18 14:58:55,273 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_configure_rx [2021-12-18 14:58:55,273 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_hw_dev [2021-12-18 14:58:55,273 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_hw_dev [2021-12-18 14:58:55,274 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_update_stats [2021-12-18 14:58:55,274 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_update_stats [2021-12-18 14:58:55,274 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_validate_option [2021-12-18 14:58:55,274 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_validate_option [2021-12-18 14:58:55,274 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-12-18 14:58:55,274 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-12-18 14:58:55,274 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-18 14:58:55,274 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_setup_link [2021-12-18 14:58:55,274 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_setup_link [2021-12-18 14:58:55,275 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_reset [2021-12-18 14:58:55,275 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_reset [2021-12-18 14:58:55,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-18 14:58:55,275 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-12-18 14:58:55,275 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-12-18 14:58:55,275 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_shutdown [2021-12-18 14:58:55,275 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_shutdown [2021-12-18 14:58:55,275 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-18 14:58:55,275 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-18 14:58:55,276 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_disable_receiver [2021-12-18 14:58:55,276 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_disable_receiver [2021-12-18 14:58:55,276 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_vlan_rx_kill_vid [2021-12-18 14:58:55,276 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_vlan_rx_kill_vid [2021-12-18 14:58:55,276 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-12-18 14:58:55,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-12-18 14:58:55,276 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-12-18 14:58:55,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-12-18 14:58:55,277 INFO L130 BoogieDeclarations]: Found specification of procedure skb_trim [2021-12-18 14:58:55,277 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_trim [2021-12-18 14:58:55,277 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_has_link [2021-12-18 14:58:55,277 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_has_link [2021-12-18 14:58:55,277 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2021-12-18 14:58:55,277 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2021-12-18 14:58:55,277 INFO L130 BoogieDeclarations]: Found specification of procedure __udelay [2021-12-18 14:58:55,277 INFO L138 BoogieDeclarations]: Found implementation of procedure __udelay [2021-12-18 14:58:55,277 INFO L130 BoogieDeclarations]: Found specification of procedure pci_wake_from_d3 [2021-12-18 14:58:55,278 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_wake_from_d3 [2021-12-18 14:58:55,278 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2021-12-18 14:58:55,278 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2021-12-18 14:58:55,278 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2021-12-18 14:58:55,278 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2021-12-18 14:58:55,278 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-12-18 14:58:55,278 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-12-18 14:58:55,278 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_open [2021-12-18 14:58:55,278 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_open [2021-12-18 14:58:55,279 INFO L130 BoogieDeclarations]: Found specification of procedure skb_is_gso [2021-12-18 14:58:55,279 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_is_gso [2021-12-18 14:58:55,279 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_write_vfta [2021-12-18 14:58:55,279 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_write_vfta [2021-12-18 14:58:55,279 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_remove [2021-12-18 14:58:55,279 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_remove [2021-12-18 14:58:55,279 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_configure [2021-12-18 14:58:55,279 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_configure [2021-12-18 14:58:55,280 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2021-12-18 14:58:55,280 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2021-12-18 14:58:55,280 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-12-18 14:58:55,280 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-12-18 14:58:55,280 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2021-12-18 14:58:55,280 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2021-12-18 14:58:55,280 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_cable_length [2021-12-18 14:58:55,280 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_cable_length [2021-12-18 14:58:55,281 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-12-18 14:58:55,281 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-12-18 14:58:55,281 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_rx_resources [2021-12-18 14:58:55,281 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_rx_resources [2021-12-18 14:58:55,281 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_vlan_rx_add_vid [2021-12-18 14:58:55,281 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_vlan_rx_add_vid [2021-12-18 14:58:55,281 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2021-12-18 14:58:55,281 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2021-12-18 14:58:55,281 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_io_write [2021-12-18 14:58:55,282 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_io_write [2021-12-18 14:58:55,399 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_delayed_work [2021-12-18 14:58:55,399 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_delayed_work [2021-12-18 14:58:55,399 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_resume [2021-12-18 14:58:55,399 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_resume [2021-12-18 14:58:55,399 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-12-18 14:58:55,399 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-12-18 14:58:55,399 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_acquire_eeprom [2021-12-18 14:58:55,399 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_acquire_eeprom [2021-12-18 14:58:55,400 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdr [2021-12-18 14:58:55,400 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdr [2021-12-18 14:58:55,400 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-18 14:58:55,400 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-18 14:58:55,400 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-18 14:58:55,400 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work_sync [2021-12-18 14:58:55,400 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work_sync [2021-12-18 14:58:55,400 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-12-18 14:58:55,400 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-12-18 14:58:55,400 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2021-12-18 14:58:55,400 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2021-12-18 14:58:55,400 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2021-12-18 14:58:55,400 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2021-12-18 14:58:55,400 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_check_polarity [2021-12-18 14:58:55,400 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_check_polarity [2021-12-18 14:58:55,400 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2021-12-18 14:58:55,400 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2021-12-18 14:58:55,400 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2021-12-18 14:58:55,400 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2021-12-18 14:58:55,400 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_eeprom_len [2021-12-18 14:58:55,401 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_eeprom_len [2021-12-18 14:58:55,401 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-12-18 14:58:55,401 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-12-18 14:58:55,401 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_setup_all_rx_resources [2021-12-18 14:58:55,401 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_setup_all_rx_resources [2021-12-18 14:58:55,401 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_schedule [2021-12-18 14:58:55,401 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_schedule [2021-12-18 14:58:55,401 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_close [2021-12-18 14:58:55,401 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_close [2021-12-18 14:58:55,401 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-12-18 14:58:55,401 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-12-18 14:58:55,401 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2021-12-18 14:58:55,401 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2021-12-18 14:58:55,401 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2021-12-18 14:58:55,401 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2021-12-18 14:58:55,401 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-12-18 14:58:55,401 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-12-18 14:58:55,401 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2021-12-18 14:58:55,401 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2021-12-18 14:58:55,401 INFO L130 BoogieDeclarations]: Found specification of procedure __pskb_pull_tail [2021-12-18 14:58:55,402 INFO L138 BoogieDeclarations]: Found implementation of procedure __pskb_pull_tail [2021-12-18 14:58:55,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-18 14:58:55,402 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_set_media_type [2021-12-18 14:58:55,402 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_set_media_type [2021-12-18 14:58:55,402 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_write_eeprom [2021-12-18 14:58:55,402 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_write_eeprom [2021-12-18 14:58:55,402 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_set_phy_loopback [2021-12-18 14:58:55,402 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_set_phy_loopback [2021-12-18 14:58:55,402 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq [2021-12-18 14:58:55,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq [2021-12-18 14:58:55,402 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-12-18 14:58:55,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-12-18 14:58:55,402 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2021-12-18 14:58:55,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2021-12-18 14:58:55,402 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_irq_enable [2021-12-18 14:58:55,402 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_irq_enable [2021-12-18 14:58:55,402 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_up [2021-12-18 14:58:55,402 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_up [2021-12-18 14:58:55,402 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_tx_timeout [2021-12-18 14:58:55,402 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_tx_timeout [2021-12-18 14:58:55,402 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_87 [2021-12-18 14:58:55,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_87 [2021-12-18 14:58:55,403 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_lower_mdi_clk [2021-12-18 14:58:55,403 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_lower_mdi_clk [2021-12-18 14:58:55,403 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-12-18 14:58:55,403 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-12-18 14:58:55,403 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-12-18 14:58:55,403 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-12-18 14:58:55,403 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_page [2021-12-18 14:58:55,403 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_page [2021-12-18 14:58:55,403 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_read_eeprom [2021-12-18 14:58:55,403 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_read_eeprom [2021-12-18 14:58:55,403 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_pci_set_mwi [2021-12-18 14:58:55,403 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_pci_set_mwi [2021-12-18 14:58:55,403 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_stats_lock_of_e1000_adapter [2021-12-18 14:58:55,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_stats_lock_of_e1000_adapter [2021-12-18 14:58:55,403 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_polarity_reversal_workaround [2021-12-18 14:58:55,403 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_polarity_reversal_workaround [2021-12-18 14:58:55,403 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2021-12-18 14:58:55,403 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2021-12-18 14:58:55,404 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~VOID [2021-12-18 14:58:55,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~VOID [2021-12-18 14:58:55,404 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-18 14:58:55,404 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-18 14:58:55,404 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_link_test [2021-12-18 14:58:55,404 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_link_test [2021-12-18 14:58:55,404 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_shift_out_mdi_bits [2021-12-18 14:58:55,404 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_shift_out_mdi_bits [2021-12-18 14:58:55,404 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_set_spd_dplx [2021-12-18 14:58:55,404 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_set_spd_dplx [2021-12-18 14:58:55,404 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device_mem [2021-12-18 14:58:55,404 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device_mem [2021-12-18 14:58:55,404 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_down [2021-12-18 14:58:55,404 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_down [2021-12-18 14:58:55,404 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-12-18 14:58:55,404 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-12-18 14:58:55,404 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_init_script [2021-12-18 14:58:55,404 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_init_script [2021-12-18 14:58:55,404 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2021-12-18 14:58:55,404 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2021-12-18 14:58:55,404 INFO L130 BoogieDeclarations]: Found specification of procedure dma_set_mask_and_coherent [2021-12-18 14:58:55,405 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_set_mask_and_coherent [2021-12-18 14:58:55,405 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2021-12-18 14:58:55,405 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2021-12-18 14:58:55,405 INFO L130 BoogieDeclarations]: Found specification of procedure __e1000_shutdown [2021-12-18 14:58:55,405 INFO L138 BoogieDeclarations]: Found implementation of procedure __e1000_shutdown [2021-12-18 14:58:55,405 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_tx_resources [2021-12-18 14:58:55,405 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_tx_resources [2021-12-18 14:58:55,405 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-12-18 14:58:55,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-12-18 14:58:55,405 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2021-12-18 14:58:55,405 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2021-12-18 14:58:55,405 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2021-12-18 14:58:55,405 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2021-12-18 14:58:55,405 INFO L130 BoogieDeclarations]: Found specification of procedure dql_avail [2021-12-18 14:58:55,408 INFO L138 BoogieDeclarations]: Found implementation of procedure dql_avail [2021-12-18 14:58:55,409 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_wol_exclusion [2021-12-18 14:58:55,409 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_wol_exclusion [2021-12-18 14:58:55,409 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-12-18 14:58:55,409 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-12-18 14:58:55,409 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-12-18 14:58:55,409 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-12-18 14:58:55,409 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_e1000_phy_lock [2021-12-18 14:58:55,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_e1000_phy_lock [2021-12-18 14:58:55,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-18 14:58:55,409 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-12-18 14:58:55,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-12-18 14:58:55,409 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2021-12-18 14:58:57,261 INFO L236 CfgBuilder]: Building ICFG [2021-12-18 14:58:57,265 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-18 14:58:58,424 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-18 14:59:52,795 INFO L277 CfgBuilder]: Performing block encoding [2021-12-18 14:59:52,850 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-18 14:59:52,855 INFO L301 CfgBuilder]: Removed 9 assume(true) statements. [2021-12-18 14:59:52,866 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 02:59:52 BoogieIcfgContainer [2021-12-18 14:59:52,867 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-18 14:59:52,868 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-18 14:59:52,868 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-18 14:59:52,872 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-18 14:59:52,872 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.12 02:58:40" (1/3) ... [2021-12-18 14:59:52,873 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3249f0e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 02:59:52, skipping insertion in model container [2021-12-18 14:59:52,874 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:58:52" (2/3) ... [2021-12-18 14:59:52,874 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3249f0e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 02:59:52, skipping insertion in model container [2021-12-18 14:59:52,874 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 02:59:52" (3/3) ... [2021-12-18 14:59:52,875 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-e1000-e1000.cil.i [2021-12-18 14:59:52,881 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-18 14:59:52,881 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-12-18 14:59:52,970 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-18 14:59:52,984 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-18 14:59:52,985 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-12-18 14:59:53,135 INFO L276 IsEmpty]: Start isEmpty. Operand has 8047 states, 5637 states have (on average 1.3505410679439418) internal successors, (7613), 5745 states have internal predecessors, (7613), 2159 states have call successors, (2159), 250 states have call predecessors, (2159), 249 states have return successors, (2155), 2142 states have call predecessors, (2155), 2155 states have call successors, (2155) [2021-12-18 14:59:53,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-12-18 14:59:53,143 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 14:59:53,144 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2021-12-18 14:59:53,144 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)] === [2021-12-18 14:59:53,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 14:59:53,149 INFO L85 PathProgramCache]: Analyzing trace with hash -127250995, now seen corresponding path program 1 times [2021-12-18 14:59:53,157 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 14:59:53,158 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312852520] [2021-12-18 14:59:53,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 14:59:53,159 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 14:59:53,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:59:54,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-18 14:59:54,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:59:54,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 14:59:54,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:59:54,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-18 14:59:54,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:59:54,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:59:54,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:59:54,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 14:59:54,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:59:54,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-18 14:59:54,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:59:54,629 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-12-18 14:59:54,629 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 14:59:54,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312852520] [2021-12-18 14:59:54,633 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1312852520] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 14:59:54,634 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 14:59:54,634 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 14:59:54,635 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608804668] [2021-12-18 14:59:54,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 14:59:54,639 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 14:59:54,640 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 14:59:54,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 14:59:54,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-18 14:59:54,692 INFO L87 Difference]: Start difference. First operand has 8047 states, 5637 states have (on average 1.3505410679439418) internal successors, (7613), 5745 states have internal predecessors, (7613), 2159 states have call successors, (2159), 250 states have call predecessors, (2159), 249 states have return successors, (2155), 2142 states have call predecessors, (2155), 2155 states have call successors, (2155) Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-12-18 14:59:55,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 14:59:55,560 INFO L93 Difference]: Finished difference Result 16039 states and 24220 transitions. [2021-12-18 14:59:55,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-18 14:59:55,563 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 50 [2021-12-18 14:59:55,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 14:59:55,648 INFO L225 Difference]: With dead ends: 16039 [2021-12-18 14:59:55,649 INFO L226 Difference]: Without dead ends: 8005 [2021-12-18 14:59:55,753 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-18 14:59:55,757 INFO L933 BasicCegarLoop]: 11844 mSDtfsCounter, 11815 mSDsluCounter, 23669 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11833 SdHoareTripleChecker+Valid, 35513 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-18 14:59:55,759 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11833 Valid, 35513 Invalid, 26 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-18 14:59:55,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8005 states. [2021-12-18 14:59:56,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8005 to 8005. [2021-12-18 14:59:56,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8005 states, 5600 states have (on average 1.3448214285714286) internal successors, (7531), 5705 states have internal predecessors, (7531), 2153 states have call successors, (2153), 250 states have call predecessors, (2153), 249 states have return successors, (2150), 2137 states have call predecessors, (2150), 2150 states have call successors, (2150) [2021-12-18 14:59:56,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8005 states to 8005 states and 11834 transitions. [2021-12-18 14:59:56,514 INFO L78 Accepts]: Start accepts. Automaton has 8005 states and 11834 transitions. Word has length 50 [2021-12-18 14:59:56,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 14:59:56,517 INFO L470 AbstractCegarLoop]: Abstraction has 8005 states and 11834 transitions. [2021-12-18 14:59:56,518 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-12-18 14:59:56,518 INFO L276 IsEmpty]: Start isEmpty. Operand 8005 states and 11834 transitions. [2021-12-18 14:59:56,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-12-18 14:59:56,521 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 14:59:56,522 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2021-12-18 14:59:56,522 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-18 14:59:56,523 INFO L402 AbstractCegarLoop]: === Iteration 2 === 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)] === [2021-12-18 14:59:56,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 14:59:56,524 INFO L85 PathProgramCache]: Analyzing trace with hash -367112587, now seen corresponding path program 1 times [2021-12-18 14:59:56,524 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 14:59:56,524 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093651721] [2021-12-18 14:59:56,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 14:59:56,524 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 14:59:56,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:59:57,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-18 14:59:57,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:59:57,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 14:59:57,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:59:57,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-18 14:59:57,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:59:57,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:59:57,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:59:57,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 14:59:57,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:59:57,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-18 14:59:57,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:59:57,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-18 14:59:57,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:59:57,424 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-12-18 14:59:57,425 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 14:59:57,425 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093651721] [2021-12-18 14:59:57,425 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2093651721] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 14:59:57,425 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 14:59:57,426 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 14:59:57,426 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59420097] [2021-12-18 14:59:57,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 14:59:57,427 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 14:59:57,427 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 14:59:57,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 14:59:57,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-18 14:59:57,428 INFO L87 Difference]: Start difference. First operand 8005 states and 11834 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-12-18 14:59:57,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 14:59:57,988 INFO L93 Difference]: Finished difference Result 8045 states and 11872 transitions. [2021-12-18 14:59:57,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-18 14:59:57,988 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 55 [2021-12-18 14:59:57,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 14:59:58,054 INFO L225 Difference]: With dead ends: 8045 [2021-12-18 14:59:58,055 INFO L226 Difference]: Without dead ends: 8043 [2021-12-18 14:59:58,066 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-18 14:59:58,068 INFO L933 BasicCegarLoop]: 11847 mSDtfsCounter, 11781 mSDsluCounter, 23714 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11797 SdHoareTripleChecker+Valid, 35561 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-18 14:59:58,068 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11797 Valid, 35561 Invalid, 28 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-18 14:59:58,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8043 states. [2021-12-18 14:59:58,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8043 to 8041. [2021-12-18 14:59:58,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8041 states, 5624 states have (on average 1.3438833570412518) internal successors, (7558), 5731 states have internal predecessors, (7558), 2157 states have call successors, (2157), 258 states have call predecessors, (2157), 257 states have return successors, (2154), 2141 states have call predecessors, (2154), 2154 states have call successors, (2154) [2021-12-18 14:59:58,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8041 states to 8041 states and 11869 transitions. [2021-12-18 14:59:58,620 INFO L78 Accepts]: Start accepts. Automaton has 8041 states and 11869 transitions. Word has length 55 [2021-12-18 14:59:58,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 14:59:58,620 INFO L470 AbstractCegarLoop]: Abstraction has 8041 states and 11869 transitions. [2021-12-18 14:59:58,621 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-12-18 14:59:58,621 INFO L276 IsEmpty]: Start isEmpty. Operand 8041 states and 11869 transitions. [2021-12-18 14:59:58,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-12-18 14:59:58,628 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 14:59:58,628 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2021-12-18 14:59:58,629 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-18 14:59:58,629 INFO L402 AbstractCegarLoop]: === Iteration 3 === 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)] === [2021-12-18 14:59:58,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 14:59:58,629 INFO L85 PathProgramCache]: Analyzing trace with hash 129339021, now seen corresponding path program 1 times [2021-12-18 14:59:58,630 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 14:59:58,630 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916766298] [2021-12-18 14:59:58,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 14:59:58,630 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 14:59:58,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:59:59,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-18 14:59:59,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:59:59,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 14:59:59,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:59:59,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-18 14:59:59,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:59:59,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:59:59,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:59:59,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 14:59:59,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:59:59,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-18 14:59:59,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:59:59,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-18 14:59:59,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:59:59,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-18 14:59:59,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:59:59,752 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-12-18 14:59:59,753 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 14:59:59,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1916766298] [2021-12-18 14:59:59,753 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1916766298] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 14:59:59,753 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 14:59:59,754 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 14:59:59,754 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991868685] [2021-12-18 14:59:59,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 14:59:59,754 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 14:59:59,755 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 14:59:59,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 14:59:59,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-18 14:59:59,756 INFO L87 Difference]: Start difference. First operand 8041 states and 11869 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-12-18 15:00:00,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 15:00:00,275 INFO L93 Difference]: Finished difference Result 8047 states and 11874 transitions. [2021-12-18 15:00:00,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-18 15:00:00,276 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 60 [2021-12-18 15:00:00,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 15:00:00,347 INFO L225 Difference]: With dead ends: 8047 [2021-12-18 15:00:00,348 INFO L226 Difference]: Without dead ends: 8045 [2021-12-18 15:00:00,359 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-18 15:00:00,362 INFO L933 BasicCegarLoop]: 11831 mSDtfsCounter, 11795 mSDsluCounter, 23637 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11810 SdHoareTripleChecker+Valid, 35468 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-18 15:00:00,365 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11810 Valid, 35468 Invalid, 26 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-18 15:00:00,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8045 states. [2021-12-18 15:00:00,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8045 to 8045. [2021-12-18 15:00:00,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8045 states, 5627 states have (on average 1.343700017771459) internal successors, (7561), 5734 states have internal predecessors, (7561), 2157 states have call successors, (2157), 259 states have call predecessors, (2157), 258 states have return successors, (2154), 2141 states have call predecessors, (2154), 2154 states have call successors, (2154) [2021-12-18 15:00:00,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8045 states to 8045 states and 11872 transitions. [2021-12-18 15:00:00,885 INFO L78 Accepts]: Start accepts. Automaton has 8045 states and 11872 transitions. Word has length 60 [2021-12-18 15:00:00,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 15:00:00,885 INFO L470 AbstractCegarLoop]: Abstraction has 8045 states and 11872 transitions. [2021-12-18 15:00:00,885 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-12-18 15:00:00,886 INFO L276 IsEmpty]: Start isEmpty. Operand 8045 states and 11872 transitions. [2021-12-18 15:00:00,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-12-18 15:00:00,888 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 15:00:00,889 INFO L514 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 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] [2021-12-18 15:00:00,889 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-18 15:00:00,889 INFO L402 AbstractCegarLoop]: === Iteration 4 === 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)] === [2021-12-18 15:00:00,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 15:00:00,890 INFO L85 PathProgramCache]: Analyzing trace with hash 800568629, now seen corresponding path program 1 times [2021-12-18 15:00:00,890 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 15:00:00,890 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816561055] [2021-12-18 15:00:00,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:00:00,890 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 15:00:01,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:01,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-18 15:00:01,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:01,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 15:00:01,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:01,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-18 15:00:01,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:01,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:00:01,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:01,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 15:00:01,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:01,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-18 15:00:01,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:01,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-18 15:00:01,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:01,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-18 15:00:01,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:01,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-18 15:00:01,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:01,699 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-12-18 15:00:01,699 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 15:00:01,700 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816561055] [2021-12-18 15:00:01,700 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1816561055] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 15:00:01,700 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 15:00:01,700 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 15:00:01,700 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980107575] [2021-12-18 15:00:01,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 15:00:01,701 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 15:00:01,701 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 15:00:01,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 15:00:01,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-18 15:00:01,702 INFO L87 Difference]: Start difference. First operand 8045 states and 11872 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-12-18 15:00:02,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 15:00:02,200 INFO L93 Difference]: Finished difference Result 8051 states and 11877 transitions. [2021-12-18 15:00:02,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-18 15:00:02,200 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 65 [2021-12-18 15:00:02,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 15:00:02,256 INFO L225 Difference]: With dead ends: 8051 [2021-12-18 15:00:02,256 INFO L226 Difference]: Without dead ends: 8049 [2021-12-18 15:00:02,265 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-18 15:00:02,267 INFO L933 BasicCegarLoop]: 11831 mSDtfsCounter, 11795 mSDsluCounter, 23637 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11809 SdHoareTripleChecker+Valid, 35468 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-18 15:00:02,268 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11809 Valid, 35468 Invalid, 26 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-18 15:00:02,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8049 states. [2021-12-18 15:00:02,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8049 to 8049. [2021-12-18 15:00:02,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8049 states, 5630 states have (on average 1.3435168738898757) internal successors, (7564), 5737 states have internal predecessors, (7564), 2157 states have call successors, (2157), 260 states have call predecessors, (2157), 259 states have return successors, (2154), 2141 states have call predecessors, (2154), 2154 states have call successors, (2154) [2021-12-18 15:00:02,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8049 states to 8049 states and 11875 transitions. [2021-12-18 15:00:02,758 INFO L78 Accepts]: Start accepts. Automaton has 8049 states and 11875 transitions. Word has length 65 [2021-12-18 15:00:02,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 15:00:02,760 INFO L470 AbstractCegarLoop]: Abstraction has 8049 states and 11875 transitions. [2021-12-18 15:00:02,760 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-12-18 15:00:02,760 INFO L276 IsEmpty]: Start isEmpty. Operand 8049 states and 11875 transitions. [2021-12-18 15:00:02,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-12-18 15:00:02,762 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 15:00:02,762 INFO L514 BasicCegarLoop]: trace histogram [5, 4, 4, 3, 3, 3, 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] [2021-12-18 15:00:02,762 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-18 15:00:02,763 INFO L402 AbstractCegarLoop]: === Iteration 5 === 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)] === [2021-12-18 15:00:02,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 15:00:02,763 INFO L85 PathProgramCache]: Analyzing trace with hash -1343713459, now seen corresponding path program 1 times [2021-12-18 15:00:02,763 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 15:00:02,764 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012458014] [2021-12-18 15:00:02,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:00:02,764 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 15:00:03,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:03,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-18 15:00:03,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:03,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 15:00:03,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:03,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-18 15:00:03,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:03,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:00:03,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:03,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 15:00:03,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:03,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-18 15:00:03,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:03,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-18 15:00:03,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:03,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-18 15:00:03,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:03,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-18 15:00:03,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:03,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-18 15:00:03,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:03,564 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2021-12-18 15:00:03,565 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 15:00:03,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012458014] [2021-12-18 15:00:03,565 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1012458014] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 15:00:03,565 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 15:00:03,565 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 15:00:03,566 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862279449] [2021-12-18 15:00:03,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 15:00:03,567 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 15:00:03,567 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 15:00:03,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 15:00:03,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-18 15:00:03,568 INFO L87 Difference]: Start difference. First operand 8049 states and 11875 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-12-18 15:00:04,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 15:00:04,091 INFO L93 Difference]: Finished difference Result 8478 states and 12485 transitions. [2021-12-18 15:00:04,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-18 15:00:04,092 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 70 [2021-12-18 15:00:04,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 15:00:04,145 INFO L225 Difference]: With dead ends: 8478 [2021-12-18 15:00:04,145 INFO L226 Difference]: Without dead ends: 8476 [2021-12-18 15:00:04,156 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-18 15:00:04,159 INFO L933 BasicCegarLoop]: 12363 mSDtfsCounter, 11749 mSDsluCounter, 25351 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11762 SdHoareTripleChecker+Valid, 37714 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-18 15:00:04,160 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11762 Valid, 37714 Invalid, 28 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-18 15:00:04,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8476 states. [2021-12-18 15:00:04,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8476 to 8470. [2021-12-18 15:00:04,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8470 states, 5901 states have (on average 1.339942382647009) internal successors, (7907), 6013 states have internal predecessors, (7907), 2286 states have call successors, (2286), 283 states have call predecessors, (2286), 280 states have return successors, (2286), 2267 states have call predecessors, (2286), 2283 states have call successors, (2286) [2021-12-18 15:00:04,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8470 states to 8470 states and 12479 transitions. [2021-12-18 15:00:04,849 INFO L78 Accepts]: Start accepts. Automaton has 8470 states and 12479 transitions. Word has length 70 [2021-12-18 15:00:04,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 15:00:04,850 INFO L470 AbstractCegarLoop]: Abstraction has 8470 states and 12479 transitions. [2021-12-18 15:00:04,850 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-12-18 15:00:04,850 INFO L276 IsEmpty]: Start isEmpty. Operand 8470 states and 12479 transitions. [2021-12-18 15:00:04,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-12-18 15:00:04,851 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 15:00:04,851 INFO L514 BasicCegarLoop]: trace histogram [6, 5, 5, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 15:00:04,852 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-18 15:00:04,852 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)] === [2021-12-18 15:00:04,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 15:00:04,852 INFO L85 PathProgramCache]: Analyzing trace with hash -2033079437, now seen corresponding path program 1 times [2021-12-18 15:00:04,853 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 15:00:04,853 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688343505] [2021-12-18 15:00:04,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:00:04,853 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 15:00:05,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:05,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-18 15:00:05,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:05,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 15:00:05,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:05,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-18 15:00:05,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:05,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:00:05,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:05,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 15:00:05,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:05,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-18 15:00:05,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:05,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-12-18 15:00:05,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:05,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-18 15:00:05,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:05,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-18 15:00:05,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:05,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 15:00:05,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:05,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-18 15:00:05,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:05,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-18 15:00:05,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:05,786 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2021-12-18 15:00:05,787 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 15:00:05,787 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688343505] [2021-12-18 15:00:05,788 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [688343505] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 15:00:05,788 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 15:00:05,788 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 15:00:05,788 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377522219] [2021-12-18 15:00:05,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 15:00:05,789 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 15:00:05,789 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 15:00:05,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 15:00:05,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-18 15:00:05,790 INFO L87 Difference]: Start difference. First operand 8470 states and 12479 transitions. Second operand has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-18 15:00:06,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 15:00:06,352 INFO L93 Difference]: Finished difference Result 8504 states and 12504 transitions. [2021-12-18 15:00:06,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-18 15:00:06,353 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 88 [2021-12-18 15:00:06,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 15:00:06,402 INFO L225 Difference]: With dead ends: 8504 [2021-12-18 15:00:06,402 INFO L226 Difference]: Without dead ends: 8502 [2021-12-18 15:00:06,412 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-18 15:00:06,413 INFO L933 BasicCegarLoop]: 11833 mSDtfsCounter, 11481 mSDsluCounter, 23963 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11493 SdHoareTripleChecker+Valid, 35796 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-18 15:00:06,414 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11493 Valid, 35796 Invalid, 28 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-18 15:00:06,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8502 states. [2021-12-18 15:00:07,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8502 to 8500. [2021-12-18 15:00:07,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8500 states, 5922 states have (on average 1.3389057750759878) internal successors, (7929), 6034 states have internal predecessors, (7929), 2286 states have call successors, (2286), 292 states have call predecessors, (2286), 289 states have return successors, (2286), 2267 states have call predecessors, (2286), 2283 states have call successors, (2286) [2021-12-18 15:00:07,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8500 states to 8500 states and 12501 transitions. [2021-12-18 15:00:07,101 INFO L78 Accepts]: Start accepts. Automaton has 8500 states and 12501 transitions. Word has length 88 [2021-12-18 15:00:07,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 15:00:07,103 INFO L470 AbstractCegarLoop]: Abstraction has 8500 states and 12501 transitions. [2021-12-18 15:00:07,103 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-18 15:00:07,103 INFO L276 IsEmpty]: Start isEmpty. Operand 8500 states and 12501 transitions. [2021-12-18 15:00:07,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-12-18 15:00:07,104 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 15:00:07,104 INFO L514 BasicCegarLoop]: trace histogram [7, 6, 6, 3, 3, 3, 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] [2021-12-18 15:00:07,105 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-18 15:00:07,105 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)] === [2021-12-18 15:00:07,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 15:00:07,105 INFO L85 PathProgramCache]: Analyzing trace with hash -1034727411, now seen corresponding path program 1 times [2021-12-18 15:00:07,106 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 15:00:07,106 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863364457] [2021-12-18 15:00:07,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:00:07,106 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 15:00:07,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:07,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-18 15:00:07,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:07,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 15:00:07,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:07,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-18 15:00:07,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:07,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:00:07,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:07,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 15:00:07,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:07,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-18 15:00:07,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:07,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-18 15:00:07,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:07,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-18 15:00:07,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:07,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-18 15:00:07,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:07,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-18 15:00:07,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:07,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 15:00:07,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:07,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-18 15:00:07,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:07,964 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2021-12-18 15:00:07,965 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 15:00:07,965 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1863364457] [2021-12-18 15:00:07,965 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1863364457] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 15:00:07,965 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 15:00:07,965 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 15:00:07,965 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054524164] [2021-12-18 15:00:07,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 15:00:07,967 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 15:00:07,967 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 15:00:07,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 15:00:07,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-18 15:00:07,968 INFO L87 Difference]: Start difference. First operand 8500 states and 12501 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-18 15:00:08,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 15:00:08,472 INFO L93 Difference]: Finished difference Result 8506 states and 12506 transitions. [2021-12-18 15:00:08,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-18 15:00:08,473 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 80 [2021-12-18 15:00:08,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 15:00:08,521 INFO L225 Difference]: With dead ends: 8506 [2021-12-18 15:00:08,521 INFO L226 Difference]: Without dead ends: 8504 [2021-12-18 15:00:08,531 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-18 15:00:08,533 INFO L933 BasicCegarLoop]: 11831 mSDtfsCounter, 11795 mSDsluCounter, 23637 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11806 SdHoareTripleChecker+Valid, 35468 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-18 15:00:08,534 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11806 Valid, 35468 Invalid, 26 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-18 15:00:08,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8504 states. [2021-12-18 15:00:08,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8504 to 8504. [2021-12-18 15:00:09,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8504 states, 5925 states have (on average 1.33873417721519) internal successors, (7932), 6037 states have internal predecessors, (7932), 2286 states have call successors, (2286), 293 states have call predecessors, (2286), 290 states have return successors, (2286), 2267 states have call predecessors, (2286), 2283 states have call successors, (2286) [2021-12-18 15:00:09,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8504 states to 8504 states and 12504 transitions. [2021-12-18 15:00:09,076 INFO L78 Accepts]: Start accepts. Automaton has 8504 states and 12504 transitions. Word has length 80 [2021-12-18 15:00:09,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 15:00:09,076 INFO L470 AbstractCegarLoop]: Abstraction has 8504 states and 12504 transitions. [2021-12-18 15:00:09,077 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-18 15:00:09,077 INFO L276 IsEmpty]: Start isEmpty. Operand 8504 states and 12504 transitions. [2021-12-18 15:00:09,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-12-18 15:00:09,083 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 15:00:09,083 INFO L514 BasicCegarLoop]: trace histogram [8, 7, 7, 3, 3, 3, 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] [2021-12-18 15:00:09,083 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-18 15:00:09,084 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)] === [2021-12-18 15:00:09,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 15:00:09,084 INFO L85 PathProgramCache]: Analyzing trace with hash -1049935179, now seen corresponding path program 1 times [2021-12-18 15:00:09,084 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 15:00:09,084 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743422695] [2021-12-18 15:00:09,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:00:09,085 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 15:00:09,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:09,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-18 15:00:09,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:09,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 15:00:09,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:09,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-18 15:00:09,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:09,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:00:09,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:09,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 15:00:09,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:09,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-18 15:00:09,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:09,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-18 15:00:09,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:09,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-18 15:00:09,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:09,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-18 15:00:09,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:09,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-18 15:00:09,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:09,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 15:00:09,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:09,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-18 15:00:09,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:09,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-18 15:00:09,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:09,877 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2021-12-18 15:00:09,878 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 15:00:09,878 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743422695] [2021-12-18 15:00:09,878 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1743422695] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 15:00:09,878 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 15:00:09,878 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 15:00:09,879 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815275169] [2021-12-18 15:00:09,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 15:00:09,879 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 15:00:09,879 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 15:00:09,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 15:00:09,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-18 15:00:09,880 INFO L87 Difference]: Start difference. First operand 8504 states and 12504 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-18 15:00:10,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 15:00:10,469 INFO L93 Difference]: Finished difference Result 8510 states and 12509 transitions. [2021-12-18 15:00:10,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-18 15:00:10,470 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 85 [2021-12-18 15:00:10,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 15:00:10,505 INFO L225 Difference]: With dead ends: 8510 [2021-12-18 15:00:10,506 INFO L226 Difference]: Without dead ends: 8508 [2021-12-18 15:00:10,511 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-18 15:00:10,512 INFO L933 BasicCegarLoop]: 11831 mSDtfsCounter, 11795 mSDsluCounter, 23637 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11805 SdHoareTripleChecker+Valid, 35468 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-18 15:00:10,513 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11805 Valid, 35468 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-18 15:00:10,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8508 states. [2021-12-18 15:00:11,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8508 to 8508. [2021-12-18 15:00:11,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8508 states, 5928 states have (on average 1.3385627530364372) internal successors, (7935), 6040 states have internal predecessors, (7935), 2286 states have call successors, (2286), 294 states have call predecessors, (2286), 291 states have return successors, (2286), 2267 states have call predecessors, (2286), 2283 states have call successors, (2286) [2021-12-18 15:00:11,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8508 states to 8508 states and 12507 transitions. [2021-12-18 15:00:11,079 INFO L78 Accepts]: Start accepts. Automaton has 8508 states and 12507 transitions. Word has length 85 [2021-12-18 15:00:11,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 15:00:11,080 INFO L470 AbstractCegarLoop]: Abstraction has 8508 states and 12507 transitions. [2021-12-18 15:00:11,080 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-18 15:00:11,080 INFO L276 IsEmpty]: Start isEmpty. Operand 8508 states and 12507 transitions. [2021-12-18 15:00:11,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-12-18 15:00:11,082 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 15:00:11,082 INFO L514 BasicCegarLoop]: trace histogram [9, 8, 8, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 15:00:11,083 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-18 15:00:11,083 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)] === [2021-12-18 15:00:11,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 15:00:11,084 INFO L85 PathProgramCache]: Analyzing trace with hash 335074703, now seen corresponding path program 1 times [2021-12-18 15:00:11,084 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 15:00:11,084 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102251764] [2021-12-18 15:00:11,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:00:11,084 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 15:00:11,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:11,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-18 15:00:11,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:11,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 15:00:11,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:11,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-18 15:00:11,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:11,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:00:11,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:11,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 15:00:11,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:11,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-18 15:00:11,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:11,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-12-18 15:00:11,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:11,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-18 15:00:11,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:11,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-18 15:00:11,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:11,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 15:00:11,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:11,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-18 15:00:11,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:11,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-18 15:00:11,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:11,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-18 15:00:11,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:11,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-18 15:00:11,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:11,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-18 15:00:11,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:11,868 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2021-12-18 15:00:11,868 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 15:00:11,868 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102251764] [2021-12-18 15:00:11,869 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2102251764] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 15:00:11,869 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 15:00:11,869 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 15:00:11,869 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077901680] [2021-12-18 15:00:11,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 15:00:11,870 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 15:00:11,870 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 15:00:11,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 15:00:11,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-18 15:00:11,871 INFO L87 Difference]: Start difference. First operand 8508 states and 12507 transitions. Second operand has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-12-18 15:00:12,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 15:00:12,438 INFO L93 Difference]: Finished difference Result 8514 states and 12512 transitions. [2021-12-18 15:00:12,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-18 15:00:12,439 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 103 [2021-12-18 15:00:12,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 15:00:12,473 INFO L225 Difference]: With dead ends: 8514 [2021-12-18 15:00:12,473 INFO L226 Difference]: Without dead ends: 8512 [2021-12-18 15:00:12,479 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-18 15:00:12,480 INFO L933 BasicCegarLoop]: 11831 mSDtfsCounter, 11785 mSDsluCounter, 23637 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11794 SdHoareTripleChecker+Valid, 35468 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-18 15:00:12,482 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11794 Valid, 35468 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-18 15:00:12,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8512 states. [2021-12-18 15:00:12,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8512 to 8512. [2021-12-18 15:00:12,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8512 states, 5931 states have (on average 1.338391502276176) internal successors, (7938), 6043 states have internal predecessors, (7938), 2286 states have call successors, (2286), 295 states have call predecessors, (2286), 292 states have return successors, (2286), 2267 states have call predecessors, (2286), 2283 states have call successors, (2286) [2021-12-18 15:00:13,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8512 states to 8512 states and 12510 transitions. [2021-12-18 15:00:13,056 INFO L78 Accepts]: Start accepts. Automaton has 8512 states and 12510 transitions. Word has length 103 [2021-12-18 15:00:13,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 15:00:13,057 INFO L470 AbstractCegarLoop]: Abstraction has 8512 states and 12510 transitions. [2021-12-18 15:00:13,057 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-12-18 15:00:13,057 INFO L276 IsEmpty]: Start isEmpty. Operand 8512 states and 12510 transitions. [2021-12-18 15:00:13,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-12-18 15:00:13,059 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 15:00:13,059 INFO L514 BasicCegarLoop]: trace histogram [10, 9, 9, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 15:00:13,059 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-18 15:00:13,059 INFO L402 AbstractCegarLoop]: === Iteration 10 === 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)] === [2021-12-18 15:00:13,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 15:00:13,060 INFO L85 PathProgramCache]: Analyzing trace with hash -2122248717, now seen corresponding path program 1 times [2021-12-18 15:00:13,060 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 15:00:13,060 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249629756] [2021-12-18 15:00:13,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:00:13,061 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 15:00:13,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:13,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-18 15:00:13,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:13,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 15:00:13,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:13,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-18 15:00:13,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:13,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:00:13,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:13,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 15:00:13,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:13,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-18 15:00:13,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:13,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-12-18 15:00:13,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:13,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-18 15:00:13,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:13,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-18 15:00:13,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:13,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 15:00:13,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:13,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-18 15:00:13,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:13,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-18 15:00:13,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:13,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-18 15:00:13,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:13,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-18 15:00:13,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:13,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-18 15:00:13,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:13,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-18 15:00:13,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:13,857 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2021-12-18 15:00:13,857 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 15:00:13,857 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249629756] [2021-12-18 15:00:13,857 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [249629756] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 15:00:13,858 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 15:00:13,858 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 15:00:13,858 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062196824] [2021-12-18 15:00:13,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 15:00:13,859 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 15:00:13,859 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 15:00:13,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 15:00:13,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-18 15:00:13,860 INFO L87 Difference]: Start difference. First operand 8512 states and 12510 transitions. Second operand has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-18 15:00:14,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 15:00:14,378 INFO L93 Difference]: Finished difference Result 8518 states and 12515 transitions. [2021-12-18 15:00:14,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-18 15:00:14,379 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 108 [2021-12-18 15:00:14,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 15:00:14,420 INFO L225 Difference]: With dead ends: 8518 [2021-12-18 15:00:14,420 INFO L226 Difference]: Without dead ends: 8516 [2021-12-18 15:00:14,431 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-18 15:00:14,431 INFO L933 BasicCegarLoop]: 11831 mSDtfsCounter, 11785 mSDsluCounter, 23637 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11793 SdHoareTripleChecker+Valid, 35468 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-18 15:00:14,432 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11793 Valid, 35468 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-18 15:00:14,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8516 states. [2021-12-18 15:00:15,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8516 to 8516. [2021-12-18 15:00:15,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8516 states, 5934 states have (on average 1.3382204246713851) internal successors, (7941), 6046 states have internal predecessors, (7941), 2286 states have call successors, (2286), 296 states have call predecessors, (2286), 293 states have return successors, (2286), 2267 states have call predecessors, (2286), 2283 states have call successors, (2286) [2021-12-18 15:00:15,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8516 states to 8516 states and 12513 transitions. [2021-12-18 15:00:15,086 INFO L78 Accepts]: Start accepts. Automaton has 8516 states and 12513 transitions. Word has length 108 [2021-12-18 15:00:15,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 15:00:15,086 INFO L470 AbstractCegarLoop]: Abstraction has 8516 states and 12513 transitions. [2021-12-18 15:00:15,087 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-18 15:00:15,087 INFO L276 IsEmpty]: Start isEmpty. Operand 8516 states and 12513 transitions. [2021-12-18 15:00:15,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-12-18 15:00:15,090 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 15:00:15,090 INFO L514 BasicCegarLoop]: trace histogram [11, 10, 10, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 15:00:15,090 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-18 15:00:15,091 INFO L402 AbstractCegarLoop]: === Iteration 11 === 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)] === [2021-12-18 15:00:15,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 15:00:15,091 INFO L85 PathProgramCache]: Analyzing trace with hash -2095215665, now seen corresponding path program 1 times [2021-12-18 15:00:15,091 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 15:00:15,092 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864742002] [2021-12-18 15:00:15,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:00:15,092 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 15:00:15,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:15,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-18 15:00:15,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:15,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 15:00:15,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:15,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-18 15:00:15,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:15,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:00:15,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:15,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 15:00:15,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:15,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-18 15:00:15,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:15,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-12-18 15:00:15,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:15,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-18 15:00:15,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:15,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-18 15:00:15,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:15,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 15:00:15,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:15,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-18 15:00:15,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:15,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-18 15:00:15,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:15,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-18 15:00:15,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:15,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-18 15:00:15,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:15,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-18 15:00:15,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:15,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-18 15:00:15,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:15,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-18 15:00:15,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:15,815 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 201 trivial. 0 not checked. [2021-12-18 15:00:15,815 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 15:00:15,816 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864742002] [2021-12-18 15:00:15,816 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [864742002] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 15:00:15,816 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 15:00:15,816 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 15:00:15,816 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478286478] [2021-12-18 15:00:15,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 15:00:15,817 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 15:00:15,817 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 15:00:15,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 15:00:15,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-18 15:00:15,818 INFO L87 Difference]: Start difference. First operand 8516 states and 12513 transitions. Second operand has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-12-18 15:00:16,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 15:00:16,326 INFO L93 Difference]: Finished difference Result 8522 states and 12518 transitions. [2021-12-18 15:00:16,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-18 15:00:16,327 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 113 [2021-12-18 15:00:16,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 15:00:16,374 INFO L225 Difference]: With dead ends: 8522 [2021-12-18 15:00:16,374 INFO L226 Difference]: Without dead ends: 8520 [2021-12-18 15:00:16,383 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-18 15:00:16,383 INFO L933 BasicCegarLoop]: 11831 mSDtfsCounter, 11785 mSDsluCounter, 23637 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11792 SdHoareTripleChecker+Valid, 35468 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-18 15:00:16,384 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11792 Valid, 35468 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-18 15:00:16,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8520 states. [2021-12-18 15:00:16,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8520 to 8520. [2021-12-18 15:00:16,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8520 states, 5937 states have (on average 1.3380495199595754) internal successors, (7944), 6049 states have internal predecessors, (7944), 2286 states have call successors, (2286), 297 states have call predecessors, (2286), 294 states have return successors, (2286), 2267 states have call predecessors, (2286), 2283 states have call successors, (2286) [2021-12-18 15:00:16,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8520 states to 8520 states and 12516 transitions. [2021-12-18 15:00:16,974 INFO L78 Accepts]: Start accepts. Automaton has 8520 states and 12516 transitions. Word has length 113 [2021-12-18 15:00:16,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 15:00:16,975 INFO L470 AbstractCegarLoop]: Abstraction has 8520 states and 12516 transitions. [2021-12-18 15:00:16,975 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-12-18 15:00:16,975 INFO L276 IsEmpty]: Start isEmpty. Operand 8520 states and 12516 transitions. [2021-12-18 15:00:16,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-12-18 15:00:16,977 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 15:00:16,977 INFO L514 BasicCegarLoop]: trace histogram [12, 11, 11, 3, 3, 3, 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] [2021-12-18 15:00:16,977 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-18 15:00:16,977 INFO L402 AbstractCegarLoop]: === Iteration 12 === 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)] === [2021-12-18 15:00:16,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 15:00:16,978 INFO L85 PathProgramCache]: Analyzing trace with hash -731918283, now seen corresponding path program 1 times [2021-12-18 15:00:16,978 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 15:00:16,978 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576350939] [2021-12-18 15:00:16,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:00:16,979 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 15:00:17,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:17,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-18 15:00:17,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:17,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 15:00:17,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:17,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-18 15:00:17,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:17,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:00:17,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:17,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 15:00:17,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:17,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-18 15:00:17,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:17,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-18 15:00:17,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:17,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-18 15:00:17,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:17,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-18 15:00:17,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:17,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-18 15:00:17,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:17,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 15:00:17,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:17,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-18 15:00:17,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:17,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-18 15:00:17,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:17,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-18 15:00:17,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:17,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-18 15:00:17,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:17,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 15:00:17,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:17,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-18 15:00:17,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:17,759 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-12-18 15:00:17,759 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 15:00:17,759 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576350939] [2021-12-18 15:00:17,759 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576350939] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 15:00:17,759 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 15:00:17,760 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 15:00:17,760 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845510059] [2021-12-18 15:00:17,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 15:00:17,760 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 15:00:17,760 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 15:00:17,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 15:00:17,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-18 15:00:17,761 INFO L87 Difference]: Start difference. First operand 8520 states and 12516 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-12-18 15:00:18,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 15:00:18,218 INFO L93 Difference]: Finished difference Result 8526 states and 12521 transitions. [2021-12-18 15:00:18,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-18 15:00:18,218 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 105 [2021-12-18 15:00:18,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 15:00:18,263 INFO L225 Difference]: With dead ends: 8526 [2021-12-18 15:00:18,263 INFO L226 Difference]: Without dead ends: 8524 [2021-12-18 15:00:18,278 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-18 15:00:18,279 INFO L933 BasicCegarLoop]: 11831 mSDtfsCounter, 11795 mSDsluCounter, 23637 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11801 SdHoareTripleChecker+Valid, 35468 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-18 15:00:18,280 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11801 Valid, 35468 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-18 15:00:18,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8524 states. [2021-12-18 15:00:18,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8524 to 8524. [2021-12-18 15:00:18,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8524 states, 5940 states have (on average 1.337878787878788) internal successors, (7947), 6052 states have internal predecessors, (7947), 2286 states have call successors, (2286), 298 states have call predecessors, (2286), 295 states have return successors, (2286), 2267 states have call predecessors, (2286), 2283 states have call successors, (2286) [2021-12-18 15:00:18,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8524 states to 8524 states and 12519 transitions. [2021-12-18 15:00:18,881 INFO L78 Accepts]: Start accepts. Automaton has 8524 states and 12519 transitions. Word has length 105 [2021-12-18 15:00:18,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 15:00:18,881 INFO L470 AbstractCegarLoop]: Abstraction has 8524 states and 12519 transitions. [2021-12-18 15:00:18,882 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-12-18 15:00:18,882 INFO L276 IsEmpty]: Start isEmpty. Operand 8524 states and 12519 transitions. [2021-12-18 15:00:18,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2021-12-18 15:00:18,885 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 15:00:18,885 INFO L514 BasicCegarLoop]: trace histogram [13, 12, 12, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 15:00:18,885 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-18 15:00:18,885 INFO L402 AbstractCegarLoop]: === Iteration 13 === 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)] === [2021-12-18 15:00:18,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 15:00:18,886 INFO L85 PathProgramCache]: Analyzing trace with hash 1207247375, now seen corresponding path program 1 times [2021-12-18 15:00:18,886 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 15:00:18,886 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773705069] [2021-12-18 15:00:18,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:00:18,887 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 15:00:19,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:19,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-18 15:00:19,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:19,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 15:00:19,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:19,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-18 15:00:19,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:19,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:00:19,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:19,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 15:00:19,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:19,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-18 15:00:19,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:19,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-12-18 15:00:19,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:19,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-18 15:00:19,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:19,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-18 15:00:19,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:19,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 15:00:19,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:19,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-18 15:00:19,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:19,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-18 15:00:19,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:19,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-18 15:00:19,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:19,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-18 15:00:19,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:19,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-18 15:00:19,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:19,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-18 15:00:19,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:19,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-18 15:00:19,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:19,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-18 15:00:19,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:19,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-18 15:00:19,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:19,634 INFO L134 CoverageAnalysis]: Checked inductivity of 309 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 285 trivial. 0 not checked. [2021-12-18 15:00:19,634 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 15:00:19,634 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773705069] [2021-12-18 15:00:19,635 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [773705069] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 15:00:19,635 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 15:00:19,635 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 15:00:19,635 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262955572] [2021-12-18 15:00:19,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 15:00:19,636 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 15:00:19,636 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 15:00:19,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 15:00:19,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-18 15:00:19,637 INFO L87 Difference]: Start difference. First operand 8524 states and 12519 transitions. Second operand has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-12-18 15:00:20,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 15:00:20,166 INFO L93 Difference]: Finished difference Result 8530 states and 12524 transitions. [2021-12-18 15:00:20,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-18 15:00:20,167 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 123 [2021-12-18 15:00:20,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 15:00:20,207 INFO L225 Difference]: With dead ends: 8530 [2021-12-18 15:00:20,208 INFO L226 Difference]: Without dead ends: 8528 [2021-12-18 15:00:20,217 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-18 15:00:20,221 INFO L933 BasicCegarLoop]: 11831 mSDtfsCounter, 11785 mSDsluCounter, 23637 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11790 SdHoareTripleChecker+Valid, 35468 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-18 15:00:20,221 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11790 Valid, 35468 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-18 15:00:20,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8528 states. [2021-12-18 15:00:20,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8528 to 8528. [2021-12-18 15:00:20,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8528 states, 5943 states have (on average 1.337708228167592) internal successors, (7950), 6055 states have internal predecessors, (7950), 2286 states have call successors, (2286), 299 states have call predecessors, (2286), 296 states have return successors, (2286), 2267 states have call predecessors, (2286), 2283 states have call successors, (2286) [2021-12-18 15:00:20,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8528 states to 8528 states and 12522 transitions. [2021-12-18 15:00:20,894 INFO L78 Accepts]: Start accepts. Automaton has 8528 states and 12522 transitions. Word has length 123 [2021-12-18 15:00:20,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 15:00:20,895 INFO L470 AbstractCegarLoop]: Abstraction has 8528 states and 12522 transitions. [2021-12-18 15:00:20,895 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-12-18 15:00:20,895 INFO L276 IsEmpty]: Start isEmpty. Operand 8528 states and 12522 transitions. [2021-12-18 15:00:20,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2021-12-18 15:00:20,897 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 15:00:20,897 INFO L514 BasicCegarLoop]: trace histogram [14, 13, 13, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 15:00:20,897 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-18 15:00:20,897 INFO L402 AbstractCegarLoop]: === Iteration 14 === 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)] === [2021-12-18 15:00:20,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 15:00:20,898 INFO L85 PathProgramCache]: Analyzing trace with hash -164302733, now seen corresponding path program 1 times [2021-12-18 15:00:20,898 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 15:00:20,898 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216172748] [2021-12-18 15:00:20,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:00:20,898 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 15:00:21,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:21,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-18 15:00:21,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:21,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 15:00:21,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:21,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-18 15:00:21,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:21,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:00:21,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:21,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 15:00:21,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:21,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-18 15:00:21,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:21,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-12-18 15:00:21,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:21,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-18 15:00:21,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:21,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-18 15:00:21,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:21,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 15:00:21,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:21,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-18 15:00:21,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:21,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-18 15:00:21,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:21,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-18 15:00:21,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:21,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-18 15:00:21,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:21,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-18 15:00:21,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:21,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-18 15:00:21,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:21,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-18 15:00:21,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:21,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-18 15:00:21,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:21,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-18 15:00:21,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:21,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-18 15:00:21,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:21,669 INFO L134 CoverageAnalysis]: Checked inductivity of 359 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 333 trivial. 0 not checked. [2021-12-18 15:00:21,669 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 15:00:21,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216172748] [2021-12-18 15:00:21,669 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [216172748] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 15:00:21,669 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 15:00:21,670 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 15:00:21,670 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611015287] [2021-12-18 15:00:21,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 15:00:21,670 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 15:00:21,671 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 15:00:21,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 15:00:21,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-18 15:00:21,671 INFO L87 Difference]: Start difference. First operand 8528 states and 12522 transitions. Second operand has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-12-18 15:00:22,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 15:00:22,101 INFO L93 Difference]: Finished difference Result 8534 states and 12527 transitions. [2021-12-18 15:00:22,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-18 15:00:22,103 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 128 [2021-12-18 15:00:22,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 15:00:22,143 INFO L225 Difference]: With dead ends: 8534 [2021-12-18 15:00:22,143 INFO L226 Difference]: Without dead ends: 8532 [2021-12-18 15:00:22,152 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-18 15:00:22,153 INFO L933 BasicCegarLoop]: 11831 mSDtfsCounter, 11785 mSDsluCounter, 23637 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11789 SdHoareTripleChecker+Valid, 35468 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-18 15:00:22,153 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11789 Valid, 35468 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-18 15:00:22,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8532 states. [2021-12-18 15:00:22,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8532 to 8532. [2021-12-18 15:00:22,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8532 states, 5946 states have (on average 1.3375378405650857) internal successors, (7953), 6058 states have internal predecessors, (7953), 2286 states have call successors, (2286), 300 states have call predecessors, (2286), 297 states have return successors, (2286), 2267 states have call predecessors, (2286), 2283 states have call successors, (2286) [2021-12-18 15:00:22,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8532 states to 8532 states and 12525 transitions. [2021-12-18 15:00:22,730 INFO L78 Accepts]: Start accepts. Automaton has 8532 states and 12525 transitions. Word has length 128 [2021-12-18 15:00:22,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 15:00:22,730 INFO L470 AbstractCegarLoop]: Abstraction has 8532 states and 12525 transitions. [2021-12-18 15:00:22,731 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-12-18 15:00:22,731 INFO L276 IsEmpty]: Start isEmpty. Operand 8532 states and 12525 transitions. [2021-12-18 15:00:22,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-12-18 15:00:22,732 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 15:00:22,733 INFO L514 BasicCegarLoop]: trace histogram [15, 14, 14, 3, 3, 3, 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] [2021-12-18 15:00:22,733 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-18 15:00:22,733 INFO L402 AbstractCegarLoop]: === Iteration 15 === 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)] === [2021-12-18 15:00:22,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 15:00:22,733 INFO L85 PathProgramCache]: Analyzing trace with hash -529804531, now seen corresponding path program 1 times [2021-12-18 15:00:22,733 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 15:00:22,733 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886609897] [2021-12-18 15:00:22,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:00:22,734 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 15:00:22,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:23,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-18 15:00:23,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:23,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 15:00:23,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:23,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-18 15:00:23,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:23,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:00:23,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:23,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 15:00:23,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:23,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-18 15:00:23,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:23,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-18 15:00:23,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:23,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-18 15:00:23,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:23,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-18 15:00:23,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:23,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-18 15:00:23,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:23,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 15:00:23,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:23,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-18 15:00:23,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:23,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-18 15:00:23,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:23,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-18 15:00:23,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:23,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-18 15:00:23,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:23,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 15:00:23,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:23,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-18 15:00:23,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:23,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-18 15:00:23,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:23,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-18 15:00:23,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:23,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-18 15:00:23,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:23,367 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 379 trivial. 0 not checked. [2021-12-18 15:00:23,368 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 15:00:23,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886609897] [2021-12-18 15:00:23,368 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [886609897] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 15:00:23,368 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 15:00:23,369 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 15:00:23,369 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616234319] [2021-12-18 15:00:23,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 15:00:23,369 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 15:00:23,370 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 15:00:23,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 15:00:23,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-18 15:00:23,370 INFO L87 Difference]: Start difference. First operand 8532 states and 12525 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-12-18 15:00:23,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 15:00:23,876 INFO L93 Difference]: Finished difference Result 8538 states and 12530 transitions. [2021-12-18 15:00:23,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-18 15:00:23,877 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 120 [2021-12-18 15:00:23,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 15:00:23,909 INFO L225 Difference]: With dead ends: 8538 [2021-12-18 15:00:23,909 INFO L226 Difference]: Without dead ends: 8536 [2021-12-18 15:00:23,915 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-18 15:00:23,916 INFO L933 BasicCegarLoop]: 11831 mSDtfsCounter, 11795 mSDsluCounter, 23637 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11798 SdHoareTripleChecker+Valid, 35468 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-18 15:00:23,916 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11798 Valid, 35468 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-18 15:00:23,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8536 states. [2021-12-18 15:00:24,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8536 to 8536. [2021-12-18 15:00:24,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8536 states, 5949 states have (on average 1.3373676248108926) internal successors, (7956), 6061 states have internal predecessors, (7956), 2286 states have call successors, (2286), 301 states have call predecessors, (2286), 298 states have return successors, (2286), 2267 states have call predecessors, (2286), 2283 states have call successors, (2286) [2021-12-18 15:00:24,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8536 states to 8536 states and 12528 transitions. [2021-12-18 15:00:24,417 INFO L78 Accepts]: Start accepts. Automaton has 8536 states and 12528 transitions. Word has length 120 [2021-12-18 15:00:24,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 15:00:24,417 INFO L470 AbstractCegarLoop]: Abstraction has 8536 states and 12528 transitions. [2021-12-18 15:00:24,418 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-12-18 15:00:24,418 INFO L276 IsEmpty]: Start isEmpty. Operand 8536 states and 12528 transitions. [2021-12-18 15:00:24,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2021-12-18 15:00:24,420 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 15:00:24,420 INFO L514 BasicCegarLoop]: trace histogram [16, 15, 15, 3, 3, 3, 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] [2021-12-18 15:00:24,420 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-12-18 15:00:24,420 INFO L402 AbstractCegarLoop]: === Iteration 16 === 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)] === [2021-12-18 15:00:24,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 15:00:24,421 INFO L85 PathProgramCache]: Analyzing trace with hash 1041587637, now seen corresponding path program 1 times [2021-12-18 15:00:24,421 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 15:00:24,421 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681644101] [2021-12-18 15:00:24,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:00:24,421 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 15:00:24,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:24,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-18 15:00:24,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:24,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 15:00:24,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:24,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-18 15:00:24,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:24,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:00:24,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:24,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 15:00:24,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:24,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-18 15:00:24,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:24,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-18 15:00:24,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:24,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-18 15:00:24,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:24,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-18 15:00:24,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:24,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-18 15:00:24,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:24,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 15:00:24,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:25,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-18 15:00:25,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:25,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-18 15:00:25,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:25,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-18 15:00:25,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:25,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-18 15:00:25,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:25,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 15:00:25,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:25,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-18 15:00:25,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:25,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-18 15:00:25,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:25,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-18 15:00:25,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:25,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-18 15:00:25,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:25,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-18 15:00:25,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:25,078 INFO L134 CoverageAnalysis]: Checked inductivity of 465 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2021-12-18 15:00:25,078 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 15:00:25,078 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681644101] [2021-12-18 15:00:25,079 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1681644101] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 15:00:25,079 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 15:00:25,079 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 15:00:25,079 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094158878] [2021-12-18 15:00:25,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 15:00:25,080 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 15:00:25,080 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 15:00:25,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 15:00:25,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-18 15:00:25,081 INFO L87 Difference]: Start difference. First operand 8536 states and 12528 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-18 15:00:25,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 15:00:25,523 INFO L93 Difference]: Finished difference Result 8542 states and 12533 transitions. [2021-12-18 15:00:25,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-18 15:00:25,523 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (23), 3 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 125 [2021-12-18 15:00:25,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 15:00:25,551 INFO L225 Difference]: With dead ends: 8542 [2021-12-18 15:00:25,552 INFO L226 Difference]: Without dead ends: 8540 [2021-12-18 15:00:25,558 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-18 15:00:25,558 INFO L933 BasicCegarLoop]: 11831 mSDtfsCounter, 11795 mSDsluCounter, 23637 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11797 SdHoareTripleChecker+Valid, 35468 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-18 15:00:25,559 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11797 Valid, 35468 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-18 15:00:25,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8540 states. [2021-12-18 15:00:26,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8540 to 8540. [2021-12-18 15:00:26,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8540 states, 5952 states have (on average 1.3371975806451613) internal successors, (7959), 6064 states have internal predecessors, (7959), 2286 states have call successors, (2286), 302 states have call predecessors, (2286), 299 states have return successors, (2286), 2267 states have call predecessors, (2286), 2283 states have call successors, (2286) [2021-12-18 15:00:26,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8540 states to 8540 states and 12531 transitions. [2021-12-18 15:00:26,066 INFO L78 Accepts]: Start accepts. Automaton has 8540 states and 12531 transitions. Word has length 125 [2021-12-18 15:00:26,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 15:00:26,067 INFO L470 AbstractCegarLoop]: Abstraction has 8540 states and 12531 transitions. [2021-12-18 15:00:26,067 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-18 15:00:26,067 INFO L276 IsEmpty]: Start isEmpty. Operand 8540 states and 12531 transitions. [2021-12-18 15:00:26,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2021-12-18 15:00:26,068 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 15:00:26,069 INFO L514 BasicCegarLoop]: trace histogram [17, 16, 16, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 15:00:26,069 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-12-18 15:00:26,069 INFO L402 AbstractCegarLoop]: === Iteration 17 === 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)] === [2021-12-18 15:00:26,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 15:00:26,069 INFO L85 PathProgramCache]: Analyzing trace with hash 677179023, now seen corresponding path program 1 times [2021-12-18 15:00:26,069 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 15:00:26,069 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723600014] [2021-12-18 15:00:26,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:00:26,069 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 15:00:26,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:26,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-18 15:00:26,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:26,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 15:00:26,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:26,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-18 15:00:26,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:26,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:00:26,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:26,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 15:00:26,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:26,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-18 15:00:26,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:26,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-12-18 15:00:26,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:26,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-18 15:00:26,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:26,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-18 15:00:26,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:26,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 15:00:26,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:26,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-18 15:00:26,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:26,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-18 15:00:26,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:26,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-18 15:00:26,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:26,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-18 15:00:26,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:26,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-18 15:00:26,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:26,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-18 15:00:26,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:26,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-18 15:00:26,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:26,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-18 15:00:26,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:26,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-18 15:00:26,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:26,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-18 15:00:26,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:26,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 15:00:26,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:26,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-12-18 15:00:26,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:26,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-18 15:00:26,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:26,666 INFO L134 CoverageAnalysis]: Checked inductivity of 533 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 501 trivial. 0 not checked. [2021-12-18 15:00:26,666 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 15:00:26,667 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723600014] [2021-12-18 15:00:26,667 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1723600014] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 15:00:26,667 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 15:00:26,667 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 15:00:26,667 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134862079] [2021-12-18 15:00:26,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 15:00:26,668 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 15:00:26,668 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 15:00:26,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 15:00:26,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-18 15:00:26,669 INFO L87 Difference]: Start difference. First operand 8540 states and 12531 transitions. Second operand has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-12-18 15:00:27,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 15:00:27,180 INFO L93 Difference]: Finished difference Result 8832 states and 12921 transitions. [2021-12-18 15:00:27,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-18 15:00:27,181 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (25), 3 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 143 [2021-12-18 15:00:27,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 15:00:27,211 INFO L225 Difference]: With dead ends: 8832 [2021-12-18 15:00:27,212 INFO L226 Difference]: Without dead ends: 8828 [2021-12-18 15:00:27,218 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-18 15:00:27,219 INFO L933 BasicCegarLoop]: 11910 mSDtfsCounter, 11546 mSDsluCounter, 24404 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11547 SdHoareTripleChecker+Valid, 36314 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-18 15:00:27,219 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11547 Valid, 36314 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-18 15:00:27,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8828 states. [2021-12-18 15:00:27,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8828 to 8824. [2021-12-18 15:00:27,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8824 states, 6134 states have (on average 1.3343658298011085) internal successors, (8185), 6246 states have internal predecessors, (8185), 2365 states have call successors, (2365), 326 states have call predecessors, (2365), 322 states have return successors, (2365), 2346 states have call predecessors, (2365), 2362 states have call successors, (2365) [2021-12-18 15:00:27,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8824 states to 8824 states and 12915 transitions. [2021-12-18 15:00:27,792 INFO L78 Accepts]: Start accepts. Automaton has 8824 states and 12915 transitions. Word has length 143 [2021-12-18 15:00:27,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 15:00:27,793 INFO L470 AbstractCegarLoop]: Abstraction has 8824 states and 12915 transitions. [2021-12-18 15:00:27,793 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-12-18 15:00:27,793 INFO L276 IsEmpty]: Start isEmpty. Operand 8824 states and 12915 transitions. [2021-12-18 15:00:27,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2021-12-18 15:00:27,795 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 15:00:27,795 INFO L514 BasicCegarLoop]: trace histogram [18, 17, 17, 3, 3, 3, 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] [2021-12-18 15:00:27,795 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-12-18 15:00:27,795 INFO L402 AbstractCegarLoop]: === Iteration 18 === 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)] === [2021-12-18 15:00:27,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 15:00:27,796 INFO L85 PathProgramCache]: Analyzing trace with hash -877624203, now seen corresponding path program 1 times [2021-12-18 15:00:27,796 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 15:00:27,796 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6137980] [2021-12-18 15:00:27,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:00:27,796 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 15:00:27,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:28,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-18 15:00:28,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:28,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 15:00:28,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:28,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-18 15:00:28,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:28,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:00:28,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:28,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 15:00:28,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:28,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-18 15:00:28,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:28,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-18 15:00:28,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:28,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-18 15:00:28,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:28,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-18 15:00:28,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:28,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-18 15:00:28,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:28,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 15:00:28,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:28,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-18 15:00:28,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:28,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-18 15:00:28,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:28,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-18 15:00:28,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:28,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-18 15:00:28,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:28,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 15:00:28,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:28,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-18 15:00:28,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:28,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-18 15:00:28,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:28,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-18 15:00:28,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:28,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-18 15:00:28,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:28,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-18 15:00:28,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:28,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-18 15:00:28,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:28,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-18 15:00:28,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:28,361 INFO L134 CoverageAnalysis]: Checked inductivity of 593 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 559 trivial. 0 not checked. [2021-12-18 15:00:28,362 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 15:00:28,362 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6137980] [2021-12-18 15:00:28,362 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [6137980] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 15:00:28,362 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 15:00:28,362 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 15:00:28,362 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357662387] [2021-12-18 15:00:28,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 15:00:28,363 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 15:00:28,363 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 15:00:28,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 15:00:28,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-18 15:00:28,363 INFO L87 Difference]: Start difference. First operand 8824 states and 12915 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-12-18 15:00:28,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 15:00:28,781 INFO L93 Difference]: Finished difference Result 8824 states and 12915 transitions. [2021-12-18 15:00:28,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-18 15:00:28,781 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (25), 3 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 135 [2021-12-18 15:00:28,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 15:00:28,815 INFO L225 Difference]: With dead ends: 8824 [2021-12-18 15:00:28,815 INFO L226 Difference]: Without dead ends: 8682 [2021-12-18 15:00:28,823 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-18 15:00:28,823 INFO L933 BasicCegarLoop]: 11829 mSDtfsCounter, 11791 mSDsluCounter, 23636 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11791 SdHoareTripleChecker+Valid, 35465 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-18 15:00:28,824 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11791 Valid, 35465 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-18 15:00:28,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8682 states. [2021-12-18 15:00:29,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8682 to 8682. [2021-12-18 15:00:29,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8682 states, 6043 states have (on average 1.338077114016217) internal successors, (8086), 6152 states have internal predecessors, (8086), 2332 states have call successors, (2332), 307 states have call predecessors, (2332), 305 states have return successors, (2335), 2316 states have call predecessors, (2335), 2332 states have call successors, (2335) [2021-12-18 15:00:29,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8682 states to 8682 states and 12753 transitions. [2021-12-18 15:00:29,364 INFO L78 Accepts]: Start accepts. Automaton has 8682 states and 12753 transitions. Word has length 135 [2021-12-18 15:00:29,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 15:00:29,364 INFO L470 AbstractCegarLoop]: Abstraction has 8682 states and 12753 transitions. [2021-12-18 15:00:29,365 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-12-18 15:00:29,365 INFO L276 IsEmpty]: Start isEmpty. Operand 8682 states and 12753 transitions. [2021-12-18 15:00:29,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2021-12-18 15:00:29,367 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 15:00:29,368 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 15:00:29,368 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-12-18 15:00:29,368 INFO L402 AbstractCegarLoop]: === Iteration 19 === 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)] === [2021-12-18 15:00:29,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 15:00:29,368 INFO L85 PathProgramCache]: Analyzing trace with hash -679166517, now seen corresponding path program 1 times [2021-12-18 15:00:29,369 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 15:00:29,369 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894799000] [2021-12-18 15:00:29,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:00:29,369 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 15:00:29,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:29,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-18 15:00:29,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:29,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 15:00:29,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:30,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-18 15:00:30,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:30,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:00:30,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:30,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:00:30,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:30,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 15:00:30,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:30,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-18 15:00:30,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:30,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:00:30,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:30,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:00:30,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:30,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 15:00:30,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:30,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-18 15:00:30,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:30,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:00:30,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:30,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:00:30,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:30,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 15:00:30,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:30,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 15:00:30,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:30,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 15:00:30,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:30,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-18 15:00:30,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:30,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-18 15:00:30,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:30,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:00:30,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:30,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-18 15:00:30,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:30,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-18 15:00:30,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:30,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-18 15:00:30,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:30,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-12-18 15:00:30,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:30,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-12-18 15:00:30,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:30,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-12-18 15:00:30,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:30,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-18 15:00:30,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:30,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:00:30,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:30,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-18 15:00:30,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:30,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-12-18 15:00:30,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:30,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2021-12-18 15:00:30,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:00:30,315 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2021-12-18 15:00:30,316 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 15:00:30,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894799000] [2021-12-18 15:00:30,316 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [894799000] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 15:00:30,316 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 15:00:30,316 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 15:00:30,316 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659095407] [2021-12-18 15:00:30,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 15:00:30,318 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 15:00:30,319 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 15:00:30,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 15:00:30,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-18 15:00:30,319 INFO L87 Difference]: Start difference. First operand 8682 states and 12753 transitions. Second operand has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-12-18 15:00:44,529 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:00:59,730 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:01:01,924 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:01:04,127 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:01:06,979 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:01:09,170 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:01:09,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 15:01:09,622 INFO L93 Difference]: Finished difference Result 20092 states and 29786 transitions. [2021-12-18 15:01:09,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 15:01:09,623 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 198 [2021-12-18 15:01:09,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 15:01:09,677 INFO L225 Difference]: With dead ends: 20092 [2021-12-18 15:01:09,677 INFO L226 Difference]: Without dead ends: 11427 [2021-12-18 15:01:09,720 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-18 15:01:09,721 INFO L933 BasicCegarLoop]: 11966 mSDtfsCounter, 6527 mSDsluCounter, 26944 mSDsCounter, 0 mSdLazyCounter, 5916 mSolverCounterSat, 3990 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6968 SdHoareTripleChecker+Valid, 38910 SdHoareTripleChecker+Invalid, 9912 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 3990 IncrementalHoareTripleChecker+Valid, 5916 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 37.8s IncrementalHoareTripleChecker+Time [2021-12-18 15:01:09,721 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6968 Valid, 38910 Invalid, 9912 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [3990 Valid, 5916 Invalid, 6 Unknown, 0 Unchecked, 37.8s Time] [2021-12-18 15:01:09,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11427 states. [2021-12-18 15:01:10,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11427 to 8684. [2021-12-18 15:01:10,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8684 states, 6045 states have (on average 1.3379652605459058) internal successors, (8088), 6154 states have internal predecessors, (8088), 2332 states have call successors, (2332), 307 states have call predecessors, (2332), 305 states have return successors, (2335), 2316 states have call predecessors, (2335), 2332 states have call successors, (2335) [2021-12-18 15:01:10,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8684 states to 8684 states and 12755 transitions. [2021-12-18 15:01:10,756 INFO L78 Accepts]: Start accepts. Automaton has 8684 states and 12755 transitions. Word has length 198 [2021-12-18 15:01:10,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 15:01:10,757 INFO L470 AbstractCegarLoop]: Abstraction has 8684 states and 12755 transitions. [2021-12-18 15:01:10,757 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-12-18 15:01:10,757 INFO L276 IsEmpty]: Start isEmpty. Operand 8684 states and 12755 transitions. [2021-12-18 15:01:10,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2021-12-18 15:01:10,760 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 15:01:10,760 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 15:01:10,760 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-12-18 15:01:10,761 INFO L402 AbstractCegarLoop]: === Iteration 20 === 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)] === [2021-12-18 15:01:10,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 15:01:10,761 INFO L85 PathProgramCache]: Analyzing trace with hash -1051934223, now seen corresponding path program 1 times [2021-12-18 15:01:10,761 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 15:01:10,761 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968285399] [2021-12-18 15:01:10,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:01:10,762 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 15:01:11,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:01:11,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-18 15:01:11,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:01:11,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 15:01:11,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:01:11,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-18 15:01:11,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:01:11,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:01:11,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:01:11,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:01:11,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:01:11,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 15:01:11,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:01:11,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-18 15:01:11,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:01:11,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:01:11,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:01:11,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:01:11,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:01:11,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 15:01:11,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:01:11,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-18 15:01:11,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:01:11,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:01:11,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:01:11,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:01:11,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:01:11,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 15:01:11,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:01:11,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 15:01:11,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:01:11,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 15:01:11,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:01:11,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-18 15:01:11,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:01:11,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-18 15:01:11,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:01:11,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:01:11,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:01:11,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-18 15:01:11,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:01:11,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-18 15:01:11,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:01:11,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-18 15:01:11,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:01:11,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-12-18 15:01:11,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:01:11,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-12-18 15:01:11,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:01:11,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-12-18 15:01:11,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:01:11,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-18 15:01:11,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:01:11,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:01:11,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:01:11,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-18 15:01:11,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:01:11,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-12-18 15:01:11,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:01:11,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2021-12-18 15:01:11,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:01:11,881 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2021-12-18 15:01:11,881 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 15:01:11,881 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968285399] [2021-12-18 15:01:11,882 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [968285399] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 15:01:11,882 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 15:01:11,882 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 15:01:11,882 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333772190] [2021-12-18 15:01:11,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 15:01:11,883 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 15:01:11,883 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 15:01:11,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 15:01:11,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 15:01:11,884 INFO L87 Difference]: Start difference. First operand 8684 states and 12755 transitions. Second operand has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 4 states have internal predecessors, (94), 2 states have call successors, (26), 4 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-12-18 15:01:26,911 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:01:38,943 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:01:39,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 15:01:39,401 INFO L93 Difference]: Finished difference Result 9178 states and 13534 transitions. [2021-12-18 15:01:39,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-18 15:01:39,402 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 4 states have internal predecessors, (94), 2 states have call successors, (26), 4 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 198 [2021-12-18 15:01:39,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 15:01:39,430 INFO L225 Difference]: With dead ends: 9178 [2021-12-18 15:01:39,430 INFO L226 Difference]: Without dead ends: 9176 [2021-12-18 15:01:39,435 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 60 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-18 15:01:39,435 INFO L933 BasicCegarLoop]: 11401 mSDtfsCounter, 11813 mSDsluCounter, 26830 mSDsCounter, 0 mSdLazyCounter, 5624 mSolverCounterSat, 3680 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13133 SdHoareTripleChecker+Valid, 38231 SdHoareTripleChecker+Invalid, 9306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 3680 IncrementalHoareTripleChecker+Valid, 5624 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.1s IncrementalHoareTripleChecker+Time [2021-12-18 15:01:39,436 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13133 Valid, 38231 Invalid, 9306 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [3680 Valid, 5624 Invalid, 2 Unknown, 0 Unchecked, 26.1s Time] [2021-12-18 15:01:39,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9176 states. [2021-12-18 15:01:39,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9176 to 8688. [2021-12-18 15:01:40,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8688 states, 6048 states have (on average 1.337797619047619) internal successors, (8091), 6157 states have internal predecessors, (8091), 2332 states have call successors, (2332), 308 states have call predecessors, (2332), 306 states have return successors, (2335), 2316 states have call predecessors, (2335), 2332 states have call successors, (2335) [2021-12-18 15:01:40,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8688 states to 8688 states and 12758 transitions. [2021-12-18 15:01:40,053 INFO L78 Accepts]: Start accepts. Automaton has 8688 states and 12758 transitions. Word has length 198 [2021-12-18 15:01:40,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 15:01:40,054 INFO L470 AbstractCegarLoop]: Abstraction has 8688 states and 12758 transitions. [2021-12-18 15:01:40,054 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 4 states have internal predecessors, (94), 2 states have call successors, (26), 4 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-12-18 15:01:40,055 INFO L276 IsEmpty]: Start isEmpty. Operand 8688 states and 12758 transitions. [2021-12-18 15:01:40,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2021-12-18 15:01:40,061 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 15:01:40,061 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 15:01:40,061 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-12-18 15:01:40,062 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_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)] === [2021-12-18 15:01:40,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 15:01:40,062 INFO L85 PathProgramCache]: Analyzing trace with hash -1221216110, now seen corresponding path program 1 times [2021-12-18 15:01:40,062 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 15:01:40,062 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591520478] [2021-12-18 15:01:40,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:01:40,063 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 15:01:40,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:01:40,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-18 15:01:40,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:01:40,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 15:01:40,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:01:40,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-18 15:01:40,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:01:40,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:01:40,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:01:40,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:01:40,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:01:40,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 15:01:40,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:01:40,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-18 15:01:40,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:01:40,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:01:40,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:01:40,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:01:40,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:01:40,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 15:01:40,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:01:40,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-18 15:01:40,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:01:40,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:01:40,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:01:40,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:01:40,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:01:40,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 15:01:40,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:01:40,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 15:01:40,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:01:40,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 15:01:40,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:01:40,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-18 15:01:40,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:01:40,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-18 15:01:40,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:01:40,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:01:40,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:01:40,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-18 15:01:40,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:01:40,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-18 15:01:40,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:01:40,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-18 15:01:40,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:01:40,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-18 15:01:40,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:01:40,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-18 15:01:40,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:01:40,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-12-18 15:01:40,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:01:40,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-12-18 15:01:40,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:01:41,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:01:41,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:01:41,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-12-18 15:01:41,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:01:41,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-12-18 15:01:41,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:01:41,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-12-18 15:01:41,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:01:41,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-12-18 15:01:41,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:01:41,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2021-12-18 15:01:41,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:01:41,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2021-12-18 15:01:41,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:01:41,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2021-12-18 15:01:41,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:01:41,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2021-12-18 15:01:41,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:01:41,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2021-12-18 15:01:41,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:01:41,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2021-12-18 15:01:41,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:01:41,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2021-12-18 15:01:41,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:01:41,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:01:41,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:01:41,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-18 15:01:41,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:01:41,440 INFO L134 CoverageAnalysis]: Checked inductivity of 258 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2021-12-18 15:01:41,441 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 15:01:41,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591520478] [2021-12-18 15:01:41,441 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1591520478] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 15:01:41,441 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 15:01:41,442 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-18 15:01:41,442 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010436883] [2021-12-18 15:01:41,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 15:01:41,443 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-18 15:01:41,443 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 15:01:41,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-18 15:01:41,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-18 15:01:41,444 INFO L87 Difference]: Start difference. First operand 8688 states and 12758 transitions. Second operand has 9 states, 8 states have (on average 15.5) internal successors, (124), 6 states have internal predecessors, (124), 3 states have call successors, (38), 3 states have call predecessors, (38), 3 states have return successors, (34), 4 states have call predecessors, (34), 2 states have call successors, (34) [2021-12-18 15:02:06,906 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:02:24,895 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:02:27,083 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:02:27,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 15:02:27,710 INFO L93 Difference]: Finished difference Result 17861 states and 26315 transitions. [2021-12-18 15:02:27,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-18 15:02:27,711 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 15.5) internal successors, (124), 6 states have internal predecessors, (124), 3 states have call successors, (38), 3 states have call predecessors, (38), 3 states have return successors, (34), 4 states have call predecessors, (34), 2 states have call successors, (34) Word has length 261 [2021-12-18 15:02:27,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 15:02:27,759 INFO L225 Difference]: With dead ends: 17861 [2021-12-18 15:02:27,760 INFO L226 Difference]: Without dead ends: 9190 [2021-12-18 15:02:27,795 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=56, Invalid=184, Unknown=0, NotChecked=0, Total=240 [2021-12-18 15:02:27,796 INFO L933 BasicCegarLoop]: 11204 mSDtfsCounter, 1780 mSDsluCounter, 66846 mSDsCounter, 0 mSdLazyCounter, 13576 mSolverCounterSat, 2266 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 40.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2218 SdHoareTripleChecker+Valid, 78050 SdHoareTripleChecker+Invalid, 15845 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 2266 IncrementalHoareTripleChecker+Valid, 13576 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 44.2s IncrementalHoareTripleChecker+Time [2021-12-18 15:02:27,796 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2218 Valid, 78050 Invalid, 15845 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [2266 Valid, 13576 Invalid, 3 Unknown, 0 Unchecked, 44.2s Time] [2021-12-18 15:02:27,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9190 states. [2021-12-18 15:02:28,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9190 to 8694. [2021-12-18 15:02:28,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8694 states, 6052 states have (on average 1.3375743555849307) internal successors, (8095), 6159 states have internal predecessors, (8095), 2334 states have call successors, (2334), 308 states have call predecessors, (2334), 306 states have return successors, (2337), 2318 states have call predecessors, (2337), 2334 states have call successors, (2337) [2021-12-18 15:02:28,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8694 states to 8694 states and 12766 transitions. [2021-12-18 15:02:28,319 INFO L78 Accepts]: Start accepts. Automaton has 8694 states and 12766 transitions. Word has length 261 [2021-12-18 15:02:28,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 15:02:28,319 INFO L470 AbstractCegarLoop]: Abstraction has 8694 states and 12766 transitions. [2021-12-18 15:02:28,320 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 15.5) internal successors, (124), 6 states have internal predecessors, (124), 3 states have call successors, (38), 3 states have call predecessors, (38), 3 states have return successors, (34), 4 states have call predecessors, (34), 2 states have call successors, (34) [2021-12-18 15:02:28,320 INFO L276 IsEmpty]: Start isEmpty. Operand 8694 states and 12766 transitions. [2021-12-18 15:02:28,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2021-12-18 15:02:28,325 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 15:02:28,326 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 15:02:28,326 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-12-18 15:02:28,326 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_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)] === [2021-12-18 15:02:28,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 15:02:28,327 INFO L85 PathProgramCache]: Analyzing trace with hash -236043385, now seen corresponding path program 1 times [2021-12-18 15:02:28,327 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 15:02:28,327 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426576167] [2021-12-18 15:02:28,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:02:28,327 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 15:02:28,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:29,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-18 15:02:29,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:29,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 15:02:29,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:29,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-18 15:02:29,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:29,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:02:29,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:29,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:02:29,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:29,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 15:02:29,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:29,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-18 15:02:29,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:29,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:02:29,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:29,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:02:29,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:29,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 15:02:29,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:29,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-18 15:02:29,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:29,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:02:29,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:29,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:02:29,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:29,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 15:02:29,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:29,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 15:02:29,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:29,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 15:02:29,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:29,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-18 15:02:29,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:29,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-18 15:02:29,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:29,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:02:29,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:29,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-18 15:02:29,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:29,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-18 15:02:29,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:29,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-18 15:02:29,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:29,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-12-18 15:02:29,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:29,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-18 15:02:29,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:29,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-12-18 15:02:29,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:29,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-18 15:02:29,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:29,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:02:29,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:29,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-18 15:02:29,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:29,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2021-12-18 15:02:29,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:29,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-12-18 15:02:29,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:29,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-12-18 15:02:29,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:29,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-12-18 15:02:29,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:29,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-18 15:02:29,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:29,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-12-18 15:02:29,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:29,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2021-12-18 15:02:29,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:29,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-12-18 15:02:29,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:29,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2021-12-18 15:02:29,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:29,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2021-12-18 15:02:29,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:29,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:02:29,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:29,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-18 15:02:29,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:29,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-18 15:02:29,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:29,385 INFO L134 CoverageAnalysis]: Checked inductivity of 258 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 258 trivial. 0 not checked. [2021-12-18 15:02:29,385 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 15:02:29,386 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426576167] [2021-12-18 15:02:29,386 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1426576167] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 15:02:29,386 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 15:02:29,386 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 15:02:29,386 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219084038] [2021-12-18 15:02:29,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 15:02:29,387 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 15:02:29,387 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 15:02:29,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 15:02:29,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 15:02:29,388 INFO L87 Difference]: Start difference. First operand 8694 states and 12766 transitions. Second operand has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 4 states have internal predecessors, (122), 2 states have call successors, (38), 3 states have call predecessors, (38), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2021-12-18 15:02:46,015 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:02:58,603 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:03:00,752 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:03:01,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 15:03:01,220 INFO L93 Difference]: Finished difference Result 9182 states and 13540 transitions. [2021-12-18 15:03:01,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 15:03:01,221 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 4 states have internal predecessors, (122), 2 states have call successors, (38), 3 states have call predecessors, (38), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) Word has length 262 [2021-12-18 15:03:01,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 15:03:01,251 INFO L225 Difference]: With dead ends: 9182 [2021-12-18 15:03:01,251 INFO L226 Difference]: Without dead ends: 9180 [2021-12-18 15:03:01,257 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2021-12-18 15:03:01,257 INFO L933 BasicCegarLoop]: 11482 mSDtfsCounter, 1810 mSDsluCounter, 37405 mSDsCounter, 0 mSdLazyCounter, 7047 mSolverCounterSat, 2271 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2247 SdHoareTripleChecker+Valid, 48887 SdHoareTripleChecker+Invalid, 9321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 2271 IncrementalHoareTripleChecker+Valid, 7047 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.6s IncrementalHoareTripleChecker+Time [2021-12-18 15:03:01,257 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2247 Valid, 48887 Invalid, 9321 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [2271 Valid, 7047 Invalid, 3 Unknown, 0 Unchecked, 30.6s Time] [2021-12-18 15:03:01,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9180 states. [2021-12-18 15:03:01,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9180 to 8694. [2021-12-18 15:03:01,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8694 states, 6052 states have (on average 1.3374091209517516) internal successors, (8094), 6159 states have internal predecessors, (8094), 2334 states have call successors, (2334), 308 states have call predecessors, (2334), 306 states have return successors, (2337), 2318 states have call predecessors, (2337), 2334 states have call successors, (2337) [2021-12-18 15:03:01,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8694 states to 8694 states and 12765 transitions. [2021-12-18 15:03:01,830 INFO L78 Accepts]: Start accepts. Automaton has 8694 states and 12765 transitions. Word has length 262 [2021-12-18 15:03:01,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 15:03:01,830 INFO L470 AbstractCegarLoop]: Abstraction has 8694 states and 12765 transitions. [2021-12-18 15:03:01,831 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 4 states have internal predecessors, (122), 2 states have call successors, (38), 3 states have call predecessors, (38), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2021-12-18 15:03:01,831 INFO L276 IsEmpty]: Start isEmpty. Operand 8694 states and 12765 transitions. [2021-12-18 15:03:01,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2021-12-18 15:03:01,838 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 15:03:01,838 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 15:03:01,838 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-12-18 15:03:01,838 INFO L402 AbstractCegarLoop]: === Iteration 23 === 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)] === [2021-12-18 15:03:01,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 15:03:01,839 INFO L85 PathProgramCache]: Analyzing trace with hash 1276085753, now seen corresponding path program 1 times [2021-12-18 15:03:01,839 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 15:03:01,839 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993361413] [2021-12-18 15:03:01,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:03:01,840 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 15:03:02,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:03:02,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-18 15:03:02,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:03:02,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 15:03:02,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:03:02,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-18 15:03:02,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:03:02,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:03:02,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:03:02,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:03:02,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:03:02,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 15:03:02,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:03:02,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-18 15:03:02,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:03:02,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:03:02,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:03:02,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:03:02,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:03:02,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 15:03:02,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:03:02,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-18 15:03:02,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:03:02,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:03:02,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:03:02,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:03:02,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:03:02,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 15:03:02,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:03:02,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 15:03:02,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:03:02,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 15:03:02,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:03:02,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-18 15:03:02,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:03:02,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-18 15:03:02,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:03:02,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:03:02,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:03:02,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-18 15:03:02,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:03:02,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-18 15:03:02,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:03:02,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-18 15:03:02,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:03:02,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-18 15:03:02,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:03:02,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:03:02,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:03:03,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 15:03:03,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:03:03,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-18 15:03:03,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:03:03,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-18 15:03:03,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:03:03,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:03:03,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:03:03,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-18 15:03:03,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:03:03,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-12-18 15:03:03,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:03:03,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:03:03,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:03:03,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:03:03,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:03:03,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-18 15:03:03,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:03:03,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:03:03,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:03:03,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:03:03,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:03:03,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-12-18 15:03:03,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:03:03,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2021-12-18 15:03:03,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:03:03,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-12-18 15:03:03,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:03:03,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2021-12-18 15:03:03,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:03:03,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2021-12-18 15:03:03,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:03:03,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2021-12-18 15:03:03,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:03:03,170 INFO L134 CoverageAnalysis]: Checked inductivity of 297 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2021-12-18 15:03:03,170 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 15:03:03,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993361413] [2021-12-18 15:03:03,170 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1993361413] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 15:03:03,170 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 15:03:03,170 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-18 15:03:03,171 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668486009] [2021-12-18 15:03:03,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 15:03:03,171 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-18 15:03:03,171 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 15:03:03,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-18 15:03:03,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-18 15:03:03,172 INFO L87 Difference]: Start difference. First operand 8694 states and 12765 transitions. Second operand has 9 states, 9 states have (on average 13.88888888888889) internal successors, (125), 5 states have internal predecessors, (125), 3 states have call successors, (38), 6 states have call predecessors, (38), 2 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2021-12-18 15:03:38,755 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:03:40,855 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:03:42,931 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:03:44,987 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:03:46,987 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:03:49,041 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:03:50,833 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:03:52,873 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:03:54,959 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:03:56,971 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:03:59,006 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:04:01,160 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:04:36,652 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:04:40,164 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:04:42,820 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:04:45,458 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:04:47,882 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:04:49,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 15:04:49,058 INFO L93 Difference]: Finished difference Result 9659 states and 14299 transitions. [2021-12-18 15:04:49,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-12-18 15:04:49,059 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 13.88888888888889) internal successors, (125), 5 states have internal predecessors, (125), 3 states have call successors, (38), 6 states have call predecessors, (38), 2 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) Word has length 274 [2021-12-18 15:04:49,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 15:04:49,104 INFO L225 Difference]: With dead ends: 9659 [2021-12-18 15:04:49,105 INFO L226 Difference]: Without dead ends: 9657 [2021-12-18 15:04:49,111 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 87 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=117, Invalid=225, Unknown=0, NotChecked=0, Total=342 [2021-12-18 15:04:49,112 INFO L933 BasicCegarLoop]: 9534 mSDtfsCounter, 16094 mSDsluCounter, 26436 mSDsCounter, 0 mSdLazyCounter, 20624 mSolverCounterSat, 10553 mSolverCounterUnsat, 15 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 96.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16662 SdHoareTripleChecker+Valid, 35970 SdHoareTripleChecker+Invalid, 31192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.4s SdHoareTripleChecker+Time, 10553 IncrementalHoareTripleChecker+Valid, 20624 IncrementalHoareTripleChecker+Invalid, 15 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 103.7s IncrementalHoareTripleChecker+Time [2021-12-18 15:04:49,112 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16662 Valid, 35970 Invalid, 31192 Unknown, 0 Unchecked, 0.4s Time], IncrementalHoareTripleChecker [10553 Valid, 20624 Invalid, 15 Unknown, 0 Unchecked, 103.7s Time] [2021-12-18 15:04:49,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9657 states. [2021-12-18 15:04:49,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9657 to 8804. [2021-12-18 15:04:49,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8804 states, 6130 states have (on average 1.336378466557912) internal successors, (8192), 6239 states have internal predecessors, (8192), 2354 states have call successors, (2354), 322 states have call predecessors, (2354), 318 states have return successors, (2357), 2334 states have call predecessors, (2357), 2354 states have call successors, (2357) [2021-12-18 15:04:49,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8804 states to 8804 states and 12903 transitions. [2021-12-18 15:04:49,719 INFO L78 Accepts]: Start accepts. Automaton has 8804 states and 12903 transitions. Word has length 274 [2021-12-18 15:04:49,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 15:04:49,719 INFO L470 AbstractCegarLoop]: Abstraction has 8804 states and 12903 transitions. [2021-12-18 15:04:49,719 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.88888888888889) internal successors, (125), 5 states have internal predecessors, (125), 3 states have call successors, (38), 6 states have call predecessors, (38), 2 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2021-12-18 15:04:49,719 INFO L276 IsEmpty]: Start isEmpty. Operand 8804 states and 12903 transitions. [2021-12-18 15:04:49,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2021-12-18 15:04:49,729 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 15:04:49,729 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 15:04:49,730 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-12-18 15:04:49,730 INFO L402 AbstractCegarLoop]: === Iteration 24 === 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)] === [2021-12-18 15:04:49,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 15:04:49,731 INFO L85 PathProgramCache]: Analyzing trace with hash 658455357, now seen corresponding path program 1 times [2021-12-18 15:04:49,731 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 15:04:49,731 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304410469] [2021-12-18 15:04:49,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:04:49,731 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 15:04:50,285 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-18 15:04:50,286 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [934193521] [2021-12-18 15:04:50,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:04:50,287 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 15:04:50,287 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 15:04:50,291 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-18 15:04:50,329 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-18 15:04:53,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:04:54,040 INFO L263 TraceCheckSpWp]: Trace formula consists of 16453 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-18 15:04:54,070 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 15:04:54,739 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2021-12-18 15:04:54,739 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 15:04:54,739 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 15:04:54,739 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304410469] [2021-12-18 15:04:54,739 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-18 15:04:54,740 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [934193521] [2021-12-18 15:04:54,740 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [934193521] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 15:04:54,740 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 15:04:54,740 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-18 15:04:54,740 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961143831] [2021-12-18 15:04:54,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 15:04:54,741 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-18 15:04:54,741 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 15:04:54,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-18 15:04:54,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-18 15:04:54,741 INFO L87 Difference]: Start difference. First operand 8804 states and 12903 transitions. Second operand has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 3 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2021-12-18 15:04:55,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 15:04:55,428 INFO L93 Difference]: Finished difference Result 19738 states and 29101 transitions. [2021-12-18 15:04:55,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-18 15:04:55,439 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 3 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) Word has length 278 [2021-12-18 15:04:55,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 15:04:55,503 INFO L225 Difference]: With dead ends: 19738 [2021-12-18 15:04:55,504 INFO L226 Difference]: Without dead ends: 10951 [2021-12-18 15:04:55,557 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 277 GetRequests, 276 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-18 15:04:55,558 INFO L933 BasicCegarLoop]: 13619 mSDtfsCounter, 2128 mSDsluCounter, 11975 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2671 SdHoareTripleChecker+Valid, 25594 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-18 15:04:55,558 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2671 Valid, 25594 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-18 15:04:55,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10951 states. [2021-12-18 15:04:56,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10951 to 8845. [2021-12-18 15:04:56,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8845 states, 6164 states have (on average 1.336469824789098) internal successors, (8238), 6273 states have internal predecessors, (8238), 2361 states have call successors, (2361), 322 states have call predecessors, (2361), 318 states have return successors, (2364), 2341 states have call predecessors, (2364), 2361 states have call successors, (2364) [2021-12-18 15:04:56,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8845 states to 8845 states and 12963 transitions. [2021-12-18 15:04:56,343 INFO L78 Accepts]: Start accepts. Automaton has 8845 states and 12963 transitions. Word has length 278 [2021-12-18 15:04:56,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 15:04:56,344 INFO L470 AbstractCegarLoop]: Abstraction has 8845 states and 12963 transitions. [2021-12-18 15:04:56,344 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 3 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2021-12-18 15:04:56,344 INFO L276 IsEmpty]: Start isEmpty. Operand 8845 states and 12963 transitions. [2021-12-18 15:04:56,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2021-12-18 15:04:56,352 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 15:04:56,353 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 15:04:56,412 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-12-18 15:04:56,563 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2021-12-18 15:04:56,564 INFO L402 AbstractCegarLoop]: === Iteration 25 === 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)] === [2021-12-18 15:04:56,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 15:04:56,564 INFO L85 PathProgramCache]: Analyzing trace with hash 1360055231, now seen corresponding path program 1 times [2021-12-18 15:04:56,565 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 15:04:56,565 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284250214] [2021-12-18 15:04:56,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:04:56,565 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 15:04:57,100 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-18 15:04:57,101 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1647418521] [2021-12-18 15:04:57,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:04:57,102 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 15:04:57,102 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 15:04:57,103 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-18 15:04:57,105 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-18 15:05:00,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:05:00,703 INFO L263 TraceCheckSpWp]: Trace formula consists of 16432 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-18 15:05:00,716 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 15:05:01,258 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2021-12-18 15:05:01,259 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 15:05:01,259 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 15:05:01,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284250214] [2021-12-18 15:05:01,259 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-18 15:05:01,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1647418521] [2021-12-18 15:05:01,259 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1647418521] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 15:05:01,260 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 15:05:01,260 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-18 15:05:01,260 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300896479] [2021-12-18 15:05:01,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 15:05:01,261 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-18 15:05:01,261 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 15:05:01,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-18 15:05:01,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-18 15:05:01,262 INFO L87 Difference]: Start difference. First operand 8845 states and 12963 transitions. Second operand has 4 states, 4 states have (on average 38.0) internal successors, (152), 4 states have internal predecessors, (152), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2021-12-18 15:05:02,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 15:05:02,472 INFO L93 Difference]: Finished difference Result 18070 states and 26499 transitions. [2021-12-18 15:05:02,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 15:05:02,473 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.0) internal successors, (152), 4 states have internal predecessors, (152), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 278 [2021-12-18 15:05:02,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 15:05:02,517 INFO L225 Difference]: With dead ends: 18070 [2021-12-18 15:05:02,518 INFO L226 Difference]: Without dead ends: 9242 [2021-12-18 15:05:02,564 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 279 GetRequests, 276 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-18 15:05:02,565 INFO L933 BasicCegarLoop]: 12170 mSDtfsCounter, 2563 mSDsluCounter, 21130 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3148 SdHoareTripleChecker+Valid, 33300 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-18 15:05:02,565 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3148 Valid, 33300 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-18 15:05:02,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9242 states. [2021-12-18 15:05:03,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9242 to 8847. [2021-12-18 15:05:03,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8847 states, 6166 states have (on average 1.3363606876419072) internal successors, (8240), 6275 states have internal predecessors, (8240), 2361 states have call successors, (2361), 322 states have call predecessors, (2361), 318 states have return successors, (2364), 2341 states have call predecessors, (2364), 2361 states have call successors, (2364) [2021-12-18 15:05:03,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8847 states to 8847 states and 12965 transitions. [2021-12-18 15:05:03,172 INFO L78 Accepts]: Start accepts. Automaton has 8847 states and 12965 transitions. Word has length 278 [2021-12-18 15:05:03,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 15:05:03,172 INFO L470 AbstractCegarLoop]: Abstraction has 8847 states and 12965 transitions. [2021-12-18 15:05:03,173 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.0) internal successors, (152), 4 states have internal predecessors, (152), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2021-12-18 15:05:03,173 INFO L276 IsEmpty]: Start isEmpty. Operand 8847 states and 12965 transitions. [2021-12-18 15:05:03,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 314 [2021-12-18 15:05:03,274 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 15:05:03,274 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 15:05:03,332 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-12-18 15:05:03,475 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2021-12-18 15:05:03,476 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_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)] === [2021-12-18 15:05:03,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 15:05:03,476 INFO L85 PathProgramCache]: Analyzing trace with hash 1267287725, now seen corresponding path program 1 times [2021-12-18 15:05:03,477 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 15:05:03,477 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202487623] [2021-12-18 15:05:03,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:05:03,477 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 15:05:03,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:05:04,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-18 15:05:04,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:05:04,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 15:05:04,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:05:04,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-18 15:05:04,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:05:04,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:05:04,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:05:04,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:05:04,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:05:04,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 15:05:04,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:05:04,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-18 15:05:04,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:05:04,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:05:04,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:05:04,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:05:04,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:05:04,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 15:05:04,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:05:04,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-18 15:05:04,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:05:04,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:05:04,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:05:04,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:05:04,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:05:04,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 15:05:04,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:05:04,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 15:05:04,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:05:04,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 15:05:04,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:05:04,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-18 15:05:04,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:05:04,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-18 15:05:04,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:05:04,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:05:04,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:05:04,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-18 15:05:04,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:05:04,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-18 15:05:04,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:05:04,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-18 15:05:04,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:05:04,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-18 15:05:04,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:05:04,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:05:04,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:05:04,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 15:05:04,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:05:04,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-18 15:05:04,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:05:04,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-18 15:05:04,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:05:04,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:05:04,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:05:04,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-18 15:05:04,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:05:04,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-12-18 15:05:04,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:05:04,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:05:04,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:05:04,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:05:04,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:05:04,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-18 15:05:04,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:05:04,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:05:04,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:05:04,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:05:04,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:05:04,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-12-18 15:05:04,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:05:04,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2021-12-18 15:05:04,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:05:04,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-12-18 15:05:04,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:05:04,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2021-12-18 15:05:04,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:05:04,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2021-12-18 15:05:04,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:05:04,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2021-12-18 15:05:04,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:05:04,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2021-12-18 15:05:04,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:05:04,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-18 15:05:04,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:05:04,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-18 15:05:04,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:05:04,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2021-12-18 15:05:04,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:05:04,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2021-12-18 15:05:04,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:05:04,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2021-12-18 15:05:04,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:05:04,720 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 350 trivial. 0 not checked. [2021-12-18 15:05:04,721 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 15:05:04,721 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202487623] [2021-12-18 15:05:04,721 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1202487623] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 15:05:04,721 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 15:05:04,721 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-18 15:05:04,722 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143524595] [2021-12-18 15:05:04,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 15:05:04,722 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-18 15:05:04,723 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 15:05:04,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-18 15:05:04,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-18 15:05:04,723 INFO L87 Difference]: Start difference. First operand 8847 states and 12965 transitions. Second operand has 9 states, 8 states have (on average 18.125) internal successors, (145), 4 states have internal predecessors, (145), 3 states have call successors, (44), 7 states have call predecessors, (44), 2 states have return successors, (38), 2 states have call predecessors, (38), 3 states have call successors, (38) [2021-12-18 15:05:41,385 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:06:08,595 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:06:10,853 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:06:13,052 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:06:14,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 15:06:14,136 INFO L93 Difference]: Finished difference Result 10784 states and 16094 transitions. [2021-12-18 15:06:14,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-18 15:06:14,137 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 18.125) internal successors, (145), 4 states have internal predecessors, (145), 3 states have call successors, (44), 7 states have call predecessors, (44), 2 states have return successors, (38), 2 states have call predecessors, (38), 3 states have call successors, (38) Word has length 313 [2021-12-18 15:06:14,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 15:06:14,191 INFO L225 Difference]: With dead ends: 10784 [2021-12-18 15:06:14,191 INFO L226 Difference]: Without dead ends: 10782 [2021-12-18 15:06:14,201 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=89, Invalid=183, Unknown=0, NotChecked=0, Total=272 [2021-12-18 15:06:14,202 INFO L933 BasicCegarLoop]: 10723 mSDtfsCounter, 9293 mSDsluCounter, 34144 mSDsCounter, 0 mSdLazyCounter, 20542 mSolverCounterSat, 12279 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 60.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10429 SdHoareTripleChecker+Valid, 44867 SdHoareTripleChecker+Invalid, 32825 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 12279 IncrementalHoareTripleChecker+Valid, 20542 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 67.1s IncrementalHoareTripleChecker+Time [2021-12-18 15:06:14,202 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10429 Valid, 44867 Invalid, 32825 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [12279 Valid, 20542 Invalid, 4 Unknown, 0 Unchecked, 67.1s Time] [2021-12-18 15:06:14,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10782 states. [2021-12-18 15:06:14,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10782 to 8847. [2021-12-18 15:06:14,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8847 states, 6166 states have (on average 1.336036328251703) internal successors, (8238), 6275 states have internal predecessors, (8238), 2361 states have call successors, (2361), 322 states have call predecessors, (2361), 318 states have return successors, (2364), 2341 states have call predecessors, (2364), 2361 states have call successors, (2364) [2021-12-18 15:06:14,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8847 states to 8847 states and 12963 transitions. [2021-12-18 15:06:14,964 INFO L78 Accepts]: Start accepts. Automaton has 8847 states and 12963 transitions. Word has length 313 [2021-12-18 15:06:14,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 15:06:14,965 INFO L470 AbstractCegarLoop]: Abstraction has 8847 states and 12963 transitions. [2021-12-18 15:06:14,965 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 18.125) internal successors, (145), 4 states have internal predecessors, (145), 3 states have call successors, (44), 7 states have call predecessors, (44), 2 states have return successors, (38), 2 states have call predecessors, (38), 3 states have call successors, (38) [2021-12-18 15:06:14,965 INFO L276 IsEmpty]: Start isEmpty. Operand 8847 states and 12963 transitions. [2021-12-18 15:06:14,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2021-12-18 15:06:14,975 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 15:06:14,976 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 15:06:14,976 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-12-18 15:06:14,976 INFO L402 AbstractCegarLoop]: === Iteration 27 === 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)] === [2021-12-18 15:06:14,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 15:06:14,977 INFO L85 PathProgramCache]: Analyzing trace with hash 380544273, now seen corresponding path program 1 times [2021-12-18 15:06:14,977 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 15:06:14,977 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231279449] [2021-12-18 15:06:14,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:06:14,978 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 15:06:15,477 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-18 15:06:15,478 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1623463918] [2021-12-18 15:06:15,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:06:15,478 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 15:06:15,479 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 15:06:15,484 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-18 15:06:15,488 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-18 15:06:18,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:06:18,961 INFO L263 TraceCheckSpWp]: Trace formula consists of 16666 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-18 15:06:18,975 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 15:06:19,584 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2021-12-18 15:06:19,585 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 15:06:19,585 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 15:06:19,585 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231279449] [2021-12-18 15:06:19,585 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-18 15:06:19,585 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1623463918] [2021-12-18 15:06:19,585 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1623463918] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 15:06:19,586 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 15:06:19,586 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-18 15:06:19,586 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791371467] [2021-12-18 15:06:19,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 15:06:19,587 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-18 15:06:19,587 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 15:06:19,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-18 15:06:19,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-18 15:06:19,588 INFO L87 Difference]: Start difference. First operand 8847 states and 12963 transitions. Second operand has 4 states, 4 states have (on average 42.0) internal successors, (168), 4 states have internal predecessors, (168), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2021-12-18 15:06:20,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 15:06:20,694 INFO L93 Difference]: Finished difference Result 17867 states and 26192 transitions. [2021-12-18 15:06:20,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-18 15:06:20,695 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.0) internal successors, (168), 4 states have internal predecessors, (168), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 300 [2021-12-18 15:06:20,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 15:06:20,744 INFO L225 Difference]: With dead ends: 17867 [2021-12-18 15:06:20,744 INFO L226 Difference]: Without dead ends: 9037 [2021-12-18 15:06:20,773 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 301 GetRequests, 298 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-18 15:06:20,774 INFO L933 BasicCegarLoop]: 11991 mSDtfsCounter, 373 mSDsluCounter, 23523 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 373 SdHoareTripleChecker+Valid, 35514 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-18 15:06:20,774 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [373 Valid, 35514 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-18 15:06:20,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9037 states. [2021-12-18 15:06:21,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9037 to 8849. [2021-12-18 15:06:21,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8849 states, 6168 states have (on average 1.3359273670557716) internal successors, (8240), 6277 states have internal predecessors, (8240), 2361 states have call successors, (2361), 322 states have call predecessors, (2361), 318 states have return successors, (2364), 2341 states have call predecessors, (2364), 2361 states have call successors, (2364) [2021-12-18 15:06:21,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8849 states to 8849 states and 12965 transitions. [2021-12-18 15:06:21,349 INFO L78 Accepts]: Start accepts. Automaton has 8849 states and 12965 transitions. Word has length 300 [2021-12-18 15:06:21,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 15:06:21,350 INFO L470 AbstractCegarLoop]: Abstraction has 8849 states and 12965 transitions. [2021-12-18 15:06:21,350 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.0) internal successors, (168), 4 states have internal predecessors, (168), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2021-12-18 15:06:21,350 INFO L276 IsEmpty]: Start isEmpty. Operand 8849 states and 12965 transitions. [2021-12-18 15:06:21,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 313 [2021-12-18 15:06:21,358 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 15:06:21,358 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 6, 6, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 15:06:21,414 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-12-18 15:06:21,558 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 15:06:21,559 INFO L402 AbstractCegarLoop]: === Iteration 28 === 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)] === [2021-12-18 15:06:21,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 15:06:21,559 INFO L85 PathProgramCache]: Analyzing trace with hash 370216328, now seen corresponding path program 1 times [2021-12-18 15:06:21,560 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 15:06:21,560 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127273833] [2021-12-18 15:06:21,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:06:21,560 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 15:06:21,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:06:22,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-18 15:06:22,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:06:22,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 15:06:22,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:06:22,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-18 15:06:22,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:06:22,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:06:22,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:06:22,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:06:22,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:06:22,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 15:06:22,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:06:22,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-18 15:06:22,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:06:22,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:06:22,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:06:22,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:06:22,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:06:22,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 15:06:22,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:06:22,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-18 15:06:22,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:06:22,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:06:22,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:06:22,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:06:22,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:06:22,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 15:06:22,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:06:22,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 15:06:22,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:06:22,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 15:06:22,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:06:22,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-18 15:06:22,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:06:22,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-18 15:06:22,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:06:22,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:06:22,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:06:22,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-18 15:06:22,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:06:22,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-18 15:06:22,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:06:22,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-18 15:06:22,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:06:22,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-18 15:06:22,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:06:22,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-18 15:06:22,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:06:22,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-12-18 15:06:22,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:06:22,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-18 15:06:22,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:06:22,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-18 15:06:22,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:06:22,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-12-18 15:06:22,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:06:22,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-12-18 15:06:22,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:06:22,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-12-18 15:06:22,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:06:22,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:06:22,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:06:22,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 15:06:22,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:06:22,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 15:06:22,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:06:22,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-18 15:06:22,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:06:22,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-18 15:06:22,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:06:22,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-18 15:06:22,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:06:22,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-18 15:06:22,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:06:22,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-18 15:06:22,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:06:22,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 15:06:22,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:06:22,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-18 15:06:22,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:06:22,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-18 15:06:22,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:06:22,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 15:06:22,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:06:22,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-18 15:06:22,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:06:22,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2021-12-18 15:06:22,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:06:22,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2021-12-18 15:06:22,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:06:22,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2021-12-18 15:06:22,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:06:22,696 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 281 trivial. 0 not checked. [2021-12-18 15:06:22,697 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 15:06:22,697 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127273833] [2021-12-18 15:06:22,697 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [127273833] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 15:06:22,697 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 15:06:22,698 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 15:06:22,698 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143856] [2021-12-18 15:06:22,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 15:06:22,698 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 15:06:22,699 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 15:06:22,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 15:06:22,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-18 15:06:22,700 INFO L87 Difference]: Start difference. First operand 8849 states and 12965 transitions. Second operand has 5 states, 5 states have (on average 28.8) internal successors, (144), 3 states have internal predecessors, (144), 2 states have call successors, (44), 4 states have call predecessors, (44), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2021-12-18 15:06:50,647 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:06:52,741 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:06:54,811 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:06:56,873 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:06:58,928 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:07:00,987 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:07:03,041 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:07:05,803 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:07:07,842 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:07:09,968 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:07:33,686 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:07:36,772 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:07:39,626 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:07:40,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 15:07:40,430 INFO L93 Difference]: Finished difference Result 18530 states and 27347 transitions. [2021-12-18 15:07:40,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 15:07:40,431 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.8) internal successors, (144), 3 states have internal predecessors, (144), 2 states have call successors, (44), 4 states have call predecessors, (44), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) Word has length 312 [2021-12-18 15:07:40,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 15:07:40,475 INFO L225 Difference]: With dead ends: 18530 [2021-12-18 15:07:40,476 INFO L226 Difference]: Without dead ends: 9698 [2021-12-18 15:07:40,511 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-18 15:07:40,512 INFO L933 BasicCegarLoop]: 11077 mSDtfsCounter, 2023 mSDsluCounter, 19803 mSDsCounter, 0 mSdLazyCounter, 9831 mSolverCounterSat, 2433 mSolverCounterUnsat, 13 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 69.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2527 SdHoareTripleChecker+Valid, 30880 SdHoareTripleChecker+Invalid, 12277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 2433 IncrementalHoareTripleChecker+Valid, 9831 IncrementalHoareTripleChecker+Invalid, 13 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 75.9s IncrementalHoareTripleChecker+Time [2021-12-18 15:07:40,512 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2527 Valid, 30880 Invalid, 12277 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [2433 Valid, 9831 Invalid, 13 Unknown, 0 Unchecked, 75.9s Time] [2021-12-18 15:07:40,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9698 states. [2021-12-18 15:07:41,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9698 to 8850. [2021-12-18 15:07:41,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8850 states, 6169 states have (on average 1.335872912951856) internal successors, (8241), 6278 states have internal predecessors, (8241), 2361 states have call successors, (2361), 322 states have call predecessors, (2361), 318 states have return successors, (2364), 2341 states have call predecessors, (2364), 2361 states have call successors, (2364) [2021-12-18 15:07:41,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8850 states to 8850 states and 12966 transitions. [2021-12-18 15:07:41,090 INFO L78 Accepts]: Start accepts. Automaton has 8850 states and 12966 transitions. Word has length 312 [2021-12-18 15:07:41,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 15:07:41,091 INFO L470 AbstractCegarLoop]: Abstraction has 8850 states and 12966 transitions. [2021-12-18 15:07:41,091 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.8) internal successors, (144), 3 states have internal predecessors, (144), 2 states have call successors, (44), 4 states have call predecessors, (44), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2021-12-18 15:07:41,091 INFO L276 IsEmpty]: Start isEmpty. Operand 8850 states and 12966 transitions. [2021-12-18 15:07:41,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 313 [2021-12-18 15:07:41,098 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 15:07:41,099 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 6, 6, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 15:07:41,099 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-12-18 15:07:41,099 INFO L402 AbstractCegarLoop]: === Iteration 29 === 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)] === [2021-12-18 15:07:41,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 15:07:41,099 INFO L85 PathProgramCache]: Analyzing trace with hash 610456074, now seen corresponding path program 1 times [2021-12-18 15:07:41,100 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 15:07:41,100 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745982826] [2021-12-18 15:07:41,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:07:41,100 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 15:07:41,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:07:41,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-18 15:07:41,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:07:41,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 15:07:41,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:07:41,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-18 15:07:41,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:07:41,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:07:41,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:07:41,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:07:41,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:07:41,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 15:07:41,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:07:41,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-18 15:07:41,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:07:41,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:07:41,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:07:41,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:07:41,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:07:41,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 15:07:41,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:07:41,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-18 15:07:41,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:07:41,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:07:41,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:07:41,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:07:41,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:07:41,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 15:07:41,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:07:41,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 15:07:41,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:07:41,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 15:07:41,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:07:41,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-18 15:07:41,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:07:41,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-18 15:07:41,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:07:41,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:07:41,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:07:41,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-18 15:07:41,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:07:41,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-18 15:07:41,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:07:41,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-18 15:07:41,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:07:41,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-18 15:07:41,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:07:41,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-18 15:07:41,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:07:41,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-12-18 15:07:41,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:07:41,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-18 15:07:41,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:07:42,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-18 15:07:42,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:07:42,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-12-18 15:07:42,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:07:42,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-12-18 15:07:42,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:07:42,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-12-18 15:07:42,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:07:42,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:07:42,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:07:42,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 15:07:42,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:07:42,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 15:07:42,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:07:42,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-18 15:07:42,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:07:42,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-18 15:07:42,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:07:42,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-18 15:07:42,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:07:42,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-18 15:07:42,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:07:42,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-18 15:07:42,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:07:42,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 15:07:42,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:07:42,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-18 15:07:42,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:07:42,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-18 15:07:42,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:07:42,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 15:07:42,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:07:42,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-18 15:07:42,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:07:42,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2021-12-18 15:07:42,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:07:42,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2021-12-18 15:07:42,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:07:42,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2021-12-18 15:07:42,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:07:42,287 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 281 trivial. 0 not checked. [2021-12-18 15:07:42,287 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 15:07:42,288 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745982826] [2021-12-18 15:07:42,288 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [745982826] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 15:07:42,288 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 15:07:42,288 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 15:07:42,288 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141069760] [2021-12-18 15:07:42,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 15:07:42,289 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 15:07:42,289 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 15:07:42,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 15:07:42,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-18 15:07:42,290 INFO L87 Difference]: Start difference. First operand 8850 states and 12966 transitions. Second operand has 6 states, 6 states have (on average 24.0) internal successors, (144), 4 states have internal predecessors, (144), 2 states have call successors, (44), 4 states have call predecessors, (44), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2021-12-18 15:08:12,100 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:08:14,205 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:08:16,290 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:08:18,358 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:08:20,423 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:08:22,475 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:08:23,940 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:08:25,986 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:08:28,113 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:08:30,137 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:08:32,164 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:08:34,284 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:08:56,911 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:09:00,300 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:09:02,809 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:09:04,907 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:09:07,180 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:09:09,747 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:09:10,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 15:09:10,671 INFO L93 Difference]: Finished difference Result 18563 states and 27396 transitions. [2021-12-18 15:09:10,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-18 15:09:10,672 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 24.0) internal successors, (144), 4 states have internal predecessors, (144), 2 states have call successors, (44), 4 states have call predecessors, (44), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) Word has length 312 [2021-12-18 15:09:10,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 15:09:10,720 INFO L225 Difference]: With dead ends: 18563 [2021-12-18 15:09:10,720 INFO L226 Difference]: Without dead ends: 9730 [2021-12-18 15:09:10,760 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-12-18 15:09:10,761 INFO L933 BasicCegarLoop]: 11091 mSDtfsCounter, 2080 mSDsluCounter, 29881 mSDsCounter, 0 mSdLazyCounter, 11859 mSolverCounterSat, 2460 mSolverCounterUnsat, 16 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 79.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2584 SdHoareTripleChecker+Valid, 40972 SdHoareTripleChecker+Invalid, 14335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 2460 IncrementalHoareTripleChecker+Valid, 11859 IncrementalHoareTripleChecker+Invalid, 16 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 86.6s IncrementalHoareTripleChecker+Time [2021-12-18 15:09:10,761 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2584 Valid, 40972 Invalid, 14335 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [2460 Valid, 11859 Invalid, 16 Unknown, 0 Unchecked, 86.6s Time] [2021-12-18 15:09:10,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9730 states. [2021-12-18 15:09:11,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9730 to 8850. [2021-12-18 15:09:11,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8850 states, 6169 states have (on average 1.3357108121251418) internal successors, (8240), 6278 states have internal predecessors, (8240), 2361 states have call successors, (2361), 322 states have call predecessors, (2361), 318 states have return successors, (2364), 2341 states have call predecessors, (2364), 2361 states have call successors, (2364) [2021-12-18 15:09:11,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8850 states to 8850 states and 12965 transitions. [2021-12-18 15:09:11,455 INFO L78 Accepts]: Start accepts. Automaton has 8850 states and 12965 transitions. Word has length 312 [2021-12-18 15:09:11,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 15:09:11,456 INFO L470 AbstractCegarLoop]: Abstraction has 8850 states and 12965 transitions. [2021-12-18 15:09:11,456 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 24.0) internal successors, (144), 4 states have internal predecessors, (144), 2 states have call successors, (44), 4 states have call predecessors, (44), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2021-12-18 15:09:11,456 INFO L276 IsEmpty]: Start isEmpty. Operand 8850 states and 12965 transitions. [2021-12-18 15:09:11,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 307 [2021-12-18 15:09:11,463 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 15:09:11,464 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 15:09:11,464 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-12-18 15:09:11,464 INFO L402 AbstractCegarLoop]: === Iteration 30 === 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)] === [2021-12-18 15:09:11,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 15:09:11,465 INFO L85 PathProgramCache]: Analyzing trace with hash -1301671878, now seen corresponding path program 1 times [2021-12-18 15:09:11,465 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 15:09:11,465 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260727540] [2021-12-18 15:09:11,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:09:11,465 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 15:09:11,961 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-18 15:09:11,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [55233989] [2021-12-18 15:09:11,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:09:11,962 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 15:09:11,962 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 15:09:11,964 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-18 15:09:11,965 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-18 15:09:15,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:15,623 INFO L263 TraceCheckSpWp]: Trace formula consists of 16710 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-18 15:09:15,633 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 15:09:16,132 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2021-12-18 15:09:16,133 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 15:09:16,133 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 15:09:16,133 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260727540] [2021-12-18 15:09:16,133 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-18 15:09:16,133 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [55233989] [2021-12-18 15:09:16,133 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [55233989] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 15:09:16,133 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 15:09:16,133 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-18 15:09:16,134 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050632175] [2021-12-18 15:09:16,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 15:09:16,134 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-18 15:09:16,134 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 15:09:16,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-18 15:09:16,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-18 15:09:16,135 INFO L87 Difference]: Start difference. First operand 8850 states and 12965 transitions. Second operand has 4 states, 4 states have (on average 43.5) internal successors, (174), 4 states have internal predecessors, (174), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2021-12-18 15:09:17,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 15:09:17,312 INFO L93 Difference]: Finished difference Result 18207 states and 26702 transitions. [2021-12-18 15:09:17,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 15:09:17,313 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 43.5) internal successors, (174), 4 states have internal predecessors, (174), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 306 [2021-12-18 15:09:17,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 15:09:17,362 INFO L225 Difference]: With dead ends: 18207 [2021-12-18 15:09:17,362 INFO L226 Difference]: Without dead ends: 9374 [2021-12-18 15:09:17,399 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 307 GetRequests, 304 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-18 15:09:17,400 INFO L933 BasicCegarLoop]: 12369 mSDtfsCounter, 550 mSDsluCounter, 24046 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 639 SdHoareTripleChecker+Valid, 36415 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-18 15:09:17,400 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [639 Valid, 36415 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-18 15:09:17,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9374 states. [2021-12-18 15:09:17,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9374 to 8850. [2021-12-18 15:09:17,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8850 states, 6169 states have (on average 1.3355487112984277) internal successors, (8239), 6278 states have internal predecessors, (8239), 2361 states have call successors, (2361), 322 states have call predecessors, (2361), 318 states have return successors, (2364), 2341 states have call predecessors, (2364), 2361 states have call successors, (2364) [2021-12-18 15:09:17,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8850 states to 8850 states and 12964 transitions. [2021-12-18 15:09:17,957 INFO L78 Accepts]: Start accepts. Automaton has 8850 states and 12964 transitions. Word has length 306 [2021-12-18 15:09:17,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 15:09:17,958 INFO L470 AbstractCegarLoop]: Abstraction has 8850 states and 12964 transitions. [2021-12-18 15:09:17,958 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 43.5) internal successors, (174), 4 states have internal predecessors, (174), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2021-12-18 15:09:17,958 INFO L276 IsEmpty]: Start isEmpty. Operand 8850 states and 12964 transitions. [2021-12-18 15:09:17,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 431 [2021-12-18 15:09:17,966 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 15:09:17,966 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 8, 8, 8, 8, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 15:09:18,020 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2021-12-18 15:09:18,183 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 15:09:18,184 INFO L402 AbstractCegarLoop]: === Iteration 31 === 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)] === [2021-12-18 15:09:18,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 15:09:18,184 INFO L85 PathProgramCache]: Analyzing trace with hash 2036906622, now seen corresponding path program 1 times [2021-12-18 15:09:18,184 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 15:09:18,184 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806668082] [2021-12-18 15:09:18,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:09:18,184 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 15:09:18,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:18,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-18 15:09:18,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:18,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 15:09:18,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:18,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-18 15:09:18,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:18,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:09:18,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:18,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:09:18,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:18,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 15:09:18,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:18,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-18 15:09:18,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:18,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:09:18,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:18,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:09:18,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:18,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 15:09:18,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:18,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-18 15:09:18,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:18,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:09:18,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:18,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:09:18,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:18,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 15:09:18,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:18,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 15:09:18,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:18,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 15:09:18,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:18,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-18 15:09:18,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:18,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-18 15:09:18,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:18,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:09:18,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:18,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-18 15:09:18,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:18,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-18 15:09:18,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:18,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-18 15:09:18,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:18,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-12-18 15:09:18,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:18,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-12-18 15:09:18,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:18,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-12-18 15:09:18,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:18,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-18 15:09:18,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:18,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:09:18,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:18,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-18 15:09:18,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:18,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-12-18 15:09:18,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:18,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-12-18 15:09:18,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:18,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-18 15:09:18,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:18,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-12-18 15:09:18,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:18,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2021-12-18 15:09:18,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:18,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-12-18 15:09:18,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:18,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2021-12-18 15:09:18,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:18,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-12-18 15:09:18,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:18,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2021-12-18 15:09:18,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:18,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:09:18,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:19,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:09:19,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:19,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2021-12-18 15:09:19,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:19,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:09:19,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:19,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-18 15:09:19,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:19,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 15:09:19,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:19,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-18 15:09:19,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:19,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 15:09:19,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:19,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2021-12-18 15:09:19,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:19,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2021-12-18 15:09:19,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:19,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2021-12-18 15:09:19,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:19,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:09:19,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:19,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 15:09:19,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:19,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 15:09:19,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:19,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-18 15:09:19,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:19,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-18 15:09:19,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:19,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-18 15:09:19,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:19,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-18 15:09:19,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:19,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-18 15:09:19,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:19,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 15:09:19,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:19,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-18 15:09:19,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:19,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-18 15:09:19,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:19,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-18 15:09:19,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:19,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-18 15:09:19,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:19,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-18 15:09:19,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:19,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-18 15:09:19,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:19,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 402 [2021-12-18 15:09:19,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:19,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2021-12-18 15:09:19,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:19,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 417 [2021-12-18 15:09:19,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:19,227 INFO L134 CoverageAnalysis]: Checked inductivity of 436 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 436 trivial. 0 not checked. [2021-12-18 15:09:19,227 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 15:09:19,227 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806668082] [2021-12-18 15:09:19,228 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1806668082] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 15:09:19,228 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 15:09:19,228 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 15:09:19,228 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779536488] [2021-12-18 15:09:19,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 15:09:19,229 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 15:09:19,229 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 15:09:19,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 15:09:19,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-18 15:09:19,230 INFO L87 Difference]: Start difference. First operand 8850 states and 12964 transitions. Second operand has 5 states, 5 states have (on average 39.6) internal successors, (198), 3 states have internal predecessors, (198), 2 states have call successors, (65), 4 states have call predecessors, (65), 2 states have return successors, (60), 2 states have call predecessors, (60), 2 states have call successors, (60) [2021-12-18 15:09:46,268 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:09:48,370 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:09:50,437 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:09:52,511 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:09:53,967 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:09:56,128 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:09:58,193 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:10:00,251 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:10:02,344 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:10:04,378 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:10:06,490 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:10:25,570 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:10:28,545 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:10:30,719 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:10:33,218 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:10:35,353 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:10:37,564 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:10:39,935 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:10:40,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 15:10:40,671 INFO L93 Difference]: Finished difference Result 18532 states and 27345 transitions. [2021-12-18 15:10:40,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 15:10:40,672 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 39.6) internal successors, (198), 3 states have internal predecessors, (198), 2 states have call successors, (65), 4 states have call predecessors, (65), 2 states have return successors, (60), 2 states have call predecessors, (60), 2 states have call successors, (60) Word has length 430 [2021-12-18 15:10:40,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 15:10:40,717 INFO L225 Difference]: With dead ends: 18532 [2021-12-18 15:10:40,717 INFO L226 Difference]: Without dead ends: 9699 [2021-12-18 15:10:40,750 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-18 15:10:40,751 INFO L933 BasicCegarLoop]: 11043 mSDtfsCounter, 2023 mSDsluCounter, 19767 mSDsCounter, 0 mSdLazyCounter, 9823 mSolverCounterSat, 2442 mSolverCounterUnsat, 17 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 73.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2527 SdHoareTripleChecker+Valid, 30810 SdHoareTripleChecker+Invalid, 12282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 2442 IncrementalHoareTripleChecker+Valid, 9823 IncrementalHoareTripleChecker+Invalid, 17 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 79.8s IncrementalHoareTripleChecker+Time [2021-12-18 15:10:40,751 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2527 Valid, 30810 Invalid, 12282 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [2442 Valid, 9823 Invalid, 17 Unknown, 0 Unchecked, 79.8s Time] [2021-12-18 15:10:40,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9699 states. [2021-12-18 15:10:41,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9699 to 8851. [2021-12-18 15:10:41,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8851 states, 6170 states have (on average 1.3354943273905997) internal successors, (8240), 6279 states have internal predecessors, (8240), 2361 states have call successors, (2361), 322 states have call predecessors, (2361), 318 states have return successors, (2364), 2341 states have call predecessors, (2364), 2361 states have call successors, (2364) [2021-12-18 15:10:41,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8851 states to 8851 states and 12965 transitions. [2021-12-18 15:10:41,410 INFO L78 Accepts]: Start accepts. Automaton has 8851 states and 12965 transitions. Word has length 430 [2021-12-18 15:10:41,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 15:10:41,411 INFO L470 AbstractCegarLoop]: Abstraction has 8851 states and 12965 transitions. [2021-12-18 15:10:41,411 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 39.6) internal successors, (198), 3 states have internal predecessors, (198), 2 states have call successors, (65), 4 states have call predecessors, (65), 2 states have return successors, (60), 2 states have call predecessors, (60), 2 states have call successors, (60) [2021-12-18 15:10:41,411 INFO L276 IsEmpty]: Start isEmpty. Operand 8851 states and 12965 transitions. [2021-12-18 15:10:41,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 443 [2021-12-18 15:10:41,418 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 15:10:41,419 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 6, 6, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 15:10:41,419 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-12-18 15:10:41,419 INFO L402 AbstractCegarLoop]: === Iteration 32 === 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)] === [2021-12-18 15:10:41,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 15:10:41,420 INFO L85 PathProgramCache]: Analyzing trace with hash 206344272, now seen corresponding path program 1 times [2021-12-18 15:10:41,420 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 15:10:41,420 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703621468] [2021-12-18 15:10:41,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:10:41,420 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 15:10:41,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:10:42,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-18 15:10:42,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:10:42,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 15:10:42,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:10:42,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-18 15:10:42,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:10:42,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:10:42,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:10:42,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:10:42,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:10:42,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 15:10:42,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:10:42,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-18 15:10:42,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:10:42,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:10:42,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:10:42,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:10:42,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:10:42,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 15:10:42,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:10:42,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-18 15:10:42,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:10:42,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:10:42,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:10:42,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:10:42,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:10:42,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 15:10:42,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:10:42,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 15:10:42,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:10:42,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 15:10:42,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:10:42,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-18 15:10:42,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:10:42,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-18 15:10:42,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:10:42,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:10:42,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:10:42,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-18 15:10:42,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:10:42,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-18 15:10:42,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:10:42,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-18 15:10:42,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:10:42,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-18 15:10:42,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:10:42,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:10:42,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:10:42,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 15:10:42,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:10:42,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-18 15:10:42,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:10:42,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-18 15:10:42,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:10:42,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:10:42,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:10:42,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-18 15:10:42,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:10:42,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-12-18 15:10:42,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:10:42,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:10:42,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:10:42,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:10:42,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:10:42,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-18 15:10:42,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:10:42,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:10:42,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:10:42,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:10:42,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:10:42,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-12-18 15:10:42,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:10:42,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2021-12-18 15:10:42,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:10:42,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2021-12-18 15:10:42,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:10:42,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2021-12-18 15:10:42,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:10:42,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2021-12-18 15:10:42,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:10:42,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2021-12-18 15:10:42,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:10:42,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2021-12-18 15:10:42,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:10:42,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2021-12-18 15:10:42,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:10:42,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2021-12-18 15:10:42,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:10:42,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:10:42,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:10:42,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2021-12-18 15:10:42,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:10:42,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2021-12-18 15:10:42,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:10:42,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2021-12-18 15:10:42,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:10:42,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:10:42,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:10:42,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 15:10:42,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:10:42,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 15:10:42,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:10:42,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-18 15:10:42,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:10:42,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-18 15:10:42,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:10:42,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-18 15:10:42,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:10:42,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-18 15:10:42,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:10:42,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-18 15:10:42,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:10:42,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 15:10:42,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:10:42,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-18 15:10:42,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:10:42,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-18 15:10:42,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:10:42,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-18 15:10:42,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:10:42,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-18 15:10:42,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:10:42,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-18 15:10:42,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:10:42,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-18 15:10:42,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:10:42,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 414 [2021-12-18 15:10:42,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:10:42,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 421 [2021-12-18 15:10:42,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:10:42,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 429 [2021-12-18 15:10:42,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:10:42,654 INFO L134 CoverageAnalysis]: Checked inductivity of 419 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 419 trivial. 0 not checked. [2021-12-18 15:10:42,654 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 15:10:42,654 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703621468] [2021-12-18 15:10:42,654 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703621468] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 15:10:42,655 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 15:10:42,655 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-18 15:10:42,655 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478189242] [2021-12-18 15:10:42,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 15:10:42,656 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-18 15:10:42,656 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 15:10:42,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-18 15:10:42,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-18 15:10:42,657 INFO L87 Difference]: Start difference. First operand 8851 states and 12965 transitions. Second operand has 9 states, 9 states have (on average 22.0) internal successors, (198), 5 states have internal predecessors, (198), 3 states have call successors, (62), 6 states have call predecessors, (62), 2 states have return successors, (56), 3 states have call predecessors, (56), 3 states have call successors, (56) [2021-12-18 15:11:18,973 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:11:22,516 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] Killed by 15