./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f4b24e32 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__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.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 b230ba173626e1a1717879ee489b2ae4510c44810563ac66116e22604ac558a2 --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-14 03:44:25,175 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-14 03:44:25,177 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-14 03:44:25,209 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-14 03:44:25,209 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-14 03:44:25,210 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-14 03:44:25,211 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-14 03:44:25,214 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-14 03:44:25,215 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-14 03:44:25,216 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-14 03:44:25,217 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-14 03:44:25,219 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-14 03:44:25,219 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-14 03:44:25,221 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-14 03:44:25,222 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-14 03:44:25,223 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-14 03:44:25,224 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-14 03:44:25,231 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-14 03:44:25,232 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-14 03:44:25,235 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-14 03:44:25,235 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-14 03:44:25,238 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-14 03:44:25,239 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-14 03:44:25,239 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-14 03:44:25,240 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-14 03:44:25,242 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-14 03:44:25,244 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-14 03:44:25,244 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-14 03:44:25,245 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-14 03:44:25,245 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-14 03:44:25,246 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-14 03:44:25,246 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-14 03:44:25,247 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-14 03:44:25,248 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-14 03:44:25,248 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-14 03:44:25,249 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-14 03:44:25,249 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-14 03:44:25,249 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-14 03:44:25,250 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-14 03:44:25,250 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-14 03:44:25,251 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-14 03:44:25,251 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-14 03:44:25,252 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-14 03:44:25,268 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-14 03:44:25,269 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-14 03:44:25,269 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-14 03:44:25,269 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-14 03:44:25,270 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-14 03:44:25,270 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-14 03:44:25,270 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-14 03:44:25,270 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-14 03:44:25,271 INFO L138 SettingsManager]: * Use SBE=true [2022-07-14 03:44:25,271 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-14 03:44:25,271 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-14 03:44:25,272 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-14 03:44:25,272 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-14 03:44:25,272 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-14 03:44:25,272 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-14 03:44:25,272 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-14 03:44:25,272 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-14 03:44:25,272 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-14 03:44:25,272 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-14 03:44:25,273 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-14 03:44:25,273 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-14 03:44:25,273 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 03:44:25,273 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-14 03:44:25,273 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-14 03:44:25,273 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-14 03:44:25,273 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-14 03:44:25,274 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-14 03:44:25,274 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-14 03:44:25,274 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-14 03:44:25,274 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-14 03:44:25,274 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b230ba173626e1a1717879ee489b2ae4510c44810563ac66116e22604ac558a2 [2022-07-14 03:44:25,457 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-14 03:44:25,472 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-14 03:44:25,474 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-14 03:44:25,475 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-14 03:44:25,483 INFO L275 PluginConnector]: CDTParser initialized [2022-07-14 03:44:25,484 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i [2022-07-14 03:44:25,541 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a892c25fa/922e0402fbe94cab8c61e57dd32951f3/FLAGcb891ab21 [2022-07-14 03:44:26,122 INFO L306 CDTParser]: Found 1 translation units. [2022-07-14 03:44:26,123 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i [2022-07-14 03:44:26,159 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a892c25fa/922e0402fbe94cab8c61e57dd32951f3/FLAGcb891ab21 [2022-07-14 03:44:26,275 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a892c25fa/922e0402fbe94cab8c61e57dd32951f3 [2022-07-14 03:44:26,278 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-14 03:44:26,280 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-14 03:44:26,281 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-14 03:44:26,281 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-14 03:44:26,283 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-14 03:44:26,284 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 03:44:26" (1/1) ... [2022-07-14 03:44:26,284 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42d34206 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:44:26, skipping insertion in model container [2022-07-14 03:44:26,285 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 03:44:26" (1/1) ... [2022-07-14 03:44:26,289 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-14 03:44:26,402 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 03:44:27,890 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__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[309274,309287] [2022-07-14 03:44:27,893 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__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[309443,309456] [2022-07-14 03:44:27,894 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__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[309610,309623] [2022-07-14 03:44:27,894 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__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[309778,309791] [2022-07-14 03:44:27,909 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 03:44:27,942 INFO L203 MainTranslator]: Completed pre-run [2022-07-14 03:44:28,254 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__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[309274,309287] [2022-07-14 03:44:28,255 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__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[309443,309456] [2022-07-14 03:44:28,255 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__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[309610,309623] [2022-07-14 03:44:28,255 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__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[309778,309791] [2022-07-14 03:44:28,260 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 03:44:28,367 INFO L208 MainTranslator]: Completed translation [2022-07-14 03:44:28,368 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:44:28 WrapperNode [2022-07-14 03:44:28,368 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-14 03:44:28,369 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-14 03:44:28,369 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-14 03:44:28,369 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-14 03:44:28,374 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:44:28" (1/1) ... [2022-07-14 03:44:28,456 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:44:28" (1/1) ... [2022-07-14 03:44:28,606 INFO L137 Inliner]: procedures = 412, calls = 1642, calls flagged for inlining = 194, calls inlined = 177, statements flattened = 4121 [2022-07-14 03:44:28,608 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-14 03:44:28,610 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-14 03:44:28,610 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-14 03:44:28,610 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-14 03:44:28,618 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:44:28" (1/1) ... [2022-07-14 03:44:28,619 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:44:28" (1/1) ... [2022-07-14 03:44:28,645 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:44:28" (1/1) ... [2022-07-14 03:44:28,645 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:44:28" (1/1) ... [2022-07-14 03:44:28,744 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:44:28" (1/1) ... [2022-07-14 03:44:28,757 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:44:28" (1/1) ... [2022-07-14 03:44:28,787 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:44:28" (1/1) ... [2022-07-14 03:44:28,806 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-14 03:44:28,807 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-14 03:44:28,808 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-14 03:44:28,808 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-14 03:44:28,809 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:44:28" (1/1) ... [2022-07-14 03:44:28,816 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 03:44:28,824 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 03:44:28,848 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) [2022-07-14 03:44:28,852 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 [2022-07-14 03:44:28,882 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-07-14 03:44:28,883 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-07-14 03:44:28,883 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-14 03:44:28,883 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-14 03:44:28,883 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2022-07-14 03:44:28,883 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2022-07-14 03:44:28,883 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-07-14 03:44:28,884 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-07-14 03:44:28,884 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-14 03:44:28,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-14 03:44:28,884 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-07-14 03:44:28,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-07-14 03:44:28,884 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-07-14 03:44:28,884 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-07-14 03:44:28,885 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_69 [2022-07-14 03:44:28,885 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_69 [2022-07-14 03:44:28,885 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2022-07-14 03:44:28,885 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2022-07-14 03:44:28,885 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-07-14 03:44:28,886 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-07-14 03:44:28,886 INFO L130 BoogieDeclarations]: Found specification of procedure dev_trans_start [2022-07-14 03:44:28,886 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_trans_start [2022-07-14 03:44:28,886 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_poll [2022-07-14 03:44:28,886 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_poll [2022-07-14 03:44:28,887 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-07-14 03:44:28,887 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-07-14 03:44:28,887 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-07-14 03:44:28,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-07-14 03:44:28,887 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-07-14 03:44:28,887 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-07-14 03:44:28,888 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2022-07-14 03:44:28,888 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2022-07-14 03:44:28,888 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-07-14 03:44:28,888 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-07-14 03:44:28,888 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-07-14 03:44:28,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-07-14 03:44:28,888 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2022-07-14 03:44:28,889 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2022-07-14 03:44:28,889 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-14 03:44:28,889 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_stop [2022-07-14 03:44:28,889 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_stop [2022-07-14 03:44:28,889 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-07-14 03:44:28,889 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-07-14 03:44:28,890 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-07-14 03:44:28,890 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-07-14 03:44:28,890 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-07-14 03:44:28,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-07-14 03:44:28,890 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-07-14 03:44:28,891 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-07-14 03:44:28,891 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_set_filter_mode [2022-07-14 03:44:28,892 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_set_filter_mode [2022-07-14 03:44:28,892 INFO L130 BoogieDeclarations]: Found specification of procedure phy_write_1bit [2022-07-14 03:44:28,892 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_write_1bit [2022-07-14 03:44:28,893 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-14 03:44:28,894 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u8~0~X~~u8~0~X~~u16~0~TO~VOID [2022-07-14 03:44:28,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u8~0~X~~u8~0~X~~u16~0~TO~VOID [2022-07-14 03:44:28,894 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-07-14 03:44:28,894 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-07-14 03:44:28,895 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-14 03:44:28,895 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-14 03:44:28,895 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-07-14 03:44:28,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-07-14 03:44:28,895 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-07-14 03:44:28,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-07-14 03:44:28,896 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-07-14 03:44:28,896 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-07-14 03:44:28,896 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-07-14 03:44:28,896 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-07-14 03:44:28,896 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-07-14 03:44:28,896 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-07-14 03:44:28,896 INFO L130 BoogieDeclarations]: Found specification of procedure phy_read_1bit [2022-07-14 03:44:28,897 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_read_1bit [2022-07-14 03:44:28,897 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-07-14 03:44:28,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-07-14 03:44:28,897 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_reset_prepare [2022-07-14 03:44:28,897 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_reset_prepare [2022-07-14 03:44:28,897 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-14 03:44:28,898 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-07-14 03:44:28,898 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-07-14 03:44:28,898 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-07-14 03:44:28,898 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-07-14 03:44:28,898 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-14 03:44:28,898 INFO L130 BoogieDeclarations]: Found specification of procedure allocate_rx_buffer [2022-07-14 03:44:28,898 INFO L138 BoogieDeclarations]: Found implementation of procedure allocate_rx_buffer [2022-07-14 03:44:28,899 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-07-14 03:44:28,899 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-07-14 03:44:28,899 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-07-14 03:44:28,899 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-07-14 03:44:28,899 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-14 03:44:28,900 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-07-14 03:44:28,900 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-07-14 03:44:28,900 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-07-14 03:44:28,900 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-07-14 03:44:28,900 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-07-14 03:44:28,901 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-07-14 03:44:28,901 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-07-14 03:44:28,901 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-07-14 03:44:28,901 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-07-14 03:44:28,901 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-07-14 03:44:28,901 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tail_pointer [2022-07-14 03:44:28,901 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tail_pointer [2022-07-14 03:44:28,901 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-14 03:44:28,902 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-14 03:44:28,902 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_reuse_skb [2022-07-14 03:44:28,902 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_reuse_skb [2022-07-14 03:44:28,902 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_open [2022-07-14 03:44:28,902 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_open [2022-07-14 03:44:28,902 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-14 03:44:28,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-14 03:44:28,903 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-14 03:44:28,903 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-14 03:44:28,903 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-07-14 03:44:28,904 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-07-14 03:44:28,906 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-07-14 03:44:28,906 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-07-14 03:44:28,906 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_uli526x_board_info [2022-07-14 03:44:28,906 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_uli526x_board_info [2022-07-14 03:44:28,907 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-07-14 03:44:28,907 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-07-14 03:44:28,907 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-07-14 03:44:28,907 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-07-14 03:44:28,907 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2022-07-14 03:44:28,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2022-07-14 03:44:28,909 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-07-14 03:44:28,910 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-07-14 03:44:28,910 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2022-07-14 03:44:28,910 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2022-07-14 03:44:28,910 INFO L130 BoogieDeclarations]: Found specification of procedure send_filter_frame [2022-07-14 03:44:28,910 INFO L138 BoogieDeclarations]: Found implementation of procedure send_filter_frame [2022-07-14 03:44:28,910 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_uli526x_cleanup_module_14_2 [2022-07-14 03:44:28,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_uli526x_cleanup_module_14_2 [2022-07-14 03:44:28,911 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-07-14 03:44:28,911 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-07-14 03:44:28,911 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-14 03:44:28,911 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-07-14 03:44:28,911 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-07-14 03:44:28,911 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-14 03:44:28,911 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2022-07-14 03:44:28,911 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2022-07-14 03:44:28,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-14 03:44:28,912 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-07-14 03:44:28,912 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-07-14 03:44:28,912 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-07-14 03:44:28,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-07-14 03:44:28,912 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_resume [2022-07-14 03:44:28,912 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_resume [2022-07-14 03:44:28,912 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-07-14 03:44:28,912 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-07-14 03:44:28,913 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_interrupt [2022-07-14 03:44:28,913 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_interrupt [2022-07-14 03:44:28,913 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u8~0~X~~u8~0~TO~~u16~0 [2022-07-14 03:44:28,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u8~0~X~~u8~0~TO~~u16~0 [2022-07-14 03:44:28,913 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_remove_one [2022-07-14 03:44:28,913 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_remove_one [2022-07-14 03:44:28,913 INFO L130 BoogieDeclarations]: Found specification of procedure update_cr6 [2022-07-14 03:44:28,913 INFO L138 BoogieDeclarations]: Found implementation of procedure update_cr6 [2022-07-14 03:44:28,914 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-14 03:44:28,914 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-14 03:44:28,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-14 03:44:28,914 INFO L130 BoogieDeclarations]: Found specification of procedure srom_clk_write [2022-07-14 03:44:28,914 INFO L138 BoogieDeclarations]: Found implementation of procedure srom_clk_write [2022-07-14 03:44:28,914 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_free_rxbuffer [2022-07-14 03:44:28,914 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_free_rxbuffer [2022-07-14 03:44:28,914 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-07-14 03:44:28,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-07-14 03:44:28,915 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2022-07-14 03:44:28,915 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2022-07-14 03:44:28,915 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2022-07-14 03:44:28,915 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2022-07-14 03:44:28,915 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_init [2022-07-14 03:44:28,915 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_init [2022-07-14 03:44:28,915 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-14 03:44:28,915 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-07-14 03:44:28,916 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-07-14 03:44:29,451 INFO L234 CfgBuilder]: Building ICFG [2022-07-14 03:44:29,453 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-14 03:44:29,858 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-14 03:44:31,191 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-07-14 03:44:31,349 INFO L275 CfgBuilder]: Performing block encoding [2022-07-14 03:44:31,362 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-14 03:44:31,363 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-14 03:44:31,366 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 03:44:31 BoogieIcfgContainer [2022-07-14 03:44:31,366 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-14 03:44:31,367 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-14 03:44:31,367 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-14 03:44:31,369 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-14 03:44:31,370 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.07 03:44:26" (1/3) ... [2022-07-14 03:44:31,370 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33892c22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 03:44:31, skipping insertion in model container [2022-07-14 03:44:31,370 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:44:28" (2/3) ... [2022-07-14 03:44:31,370 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33892c22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 03:44:31, skipping insertion in model container [2022-07-14 03:44:31,371 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 03:44:31" (3/3) ... [2022-07-14 03:44:31,371 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i [2022-07-14 03:44:31,381 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-14 03:44:31,381 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-07-14 03:44:31,435 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-14 03:44:31,439 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@502da6bb, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@97bbea6 [2022-07-14 03:44:31,440 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-07-14 03:44:31,447 INFO L276 IsEmpty]: Start isEmpty. Operand has 1521 states, 1050 states have (on average 1.302857142857143) internal successors, (1368), 1073 states have internal predecessors, (1368), 390 states have call successors, (390), 79 states have call predecessors, (390), 78 states have return successors, (384), 378 states have call predecessors, (384), 384 states have call successors, (384) [2022-07-14 03:44:31,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-07-14 03:44:31,462 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:44:31,462 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 03:44:31,463 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-14 03:44:31,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:44:31,466 INFO L85 PathProgramCache]: Analyzing trace with hash -1886584523, now seen corresponding path program 1 times [2022-07-14 03:44:31,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 03:44:31,473 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317299530] [2022-07-14 03:44:31,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:44:31,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 03:44:31,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:31,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 03:44:31,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:31,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:44:31,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:31,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 03:44:31,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:32,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:44:32,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:32,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-14 03:44:32,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:32,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:44:32,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:32,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-14 03:44:32,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:32,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:44:32,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:32,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-14 03:44:32,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:32,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:44:32,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:32,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-14 03:44:32,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:32,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:44:32,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:32,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-14 03:44:32,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:32,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:44:32,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:32,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-14 03:44:32,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:32,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:44:32,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:32,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-14 03:44:32,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:32,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:44:32,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:32,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-14 03:44:32,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:32,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-07-14 03:44:32,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:32,172 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2022-07-14 03:44:32,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 03:44:32,173 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317299530] [2022-07-14 03:44:32,174 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [317299530] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 03:44:32,174 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 03:44:32,175 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-14 03:44:32,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293450715] [2022-07-14 03:44:32,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 03:44:32,180 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-14 03:44:32,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 03:44:32,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-14 03:44:32,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-14 03:44:32,206 INFO L87 Difference]: Start difference. First operand has 1521 states, 1050 states have (on average 1.302857142857143) internal successors, (1368), 1073 states have internal predecessors, (1368), 390 states have call successors, (390), 79 states have call predecessors, (390), 78 states have return successors, (384), 378 states have call predecessors, (384), 384 states have call successors, (384) Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-07-14 03:44:35,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:44:35,047 INFO L93 Difference]: Finished difference Result 4680 states and 6784 transitions. [2022-07-14 03:44:35,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-14 03:44:35,049 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 127 [2022-07-14 03:44:35,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:44:35,077 INFO L225 Difference]: With dead ends: 4680 [2022-07-14 03:44:35,077 INFO L226 Difference]: Without dead ends: 3172 [2022-07-14 03:44:35,089 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-14 03:44:35,099 INFO L413 NwaCegarLoop]: 2173 mSDtfsCounter, 3026 mSDsluCounter, 1879 mSDsCounter, 0 mSdLazyCounter, 1813 mSolverCounterSat, 1319 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3390 SdHoareTripleChecker+Valid, 4052 SdHoareTripleChecker+Invalid, 3132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1319 IncrementalHoareTripleChecker+Valid, 1813 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-07-14 03:44:35,100 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3390 Valid, 4052 Invalid, 3132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1319 Valid, 1813 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-07-14 03:44:35,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3172 states. [2022-07-14 03:44:35,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3172 to 2898. [2022-07-14 03:44:35,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2898 states, 2017 states have (on average 1.2850768468021814) internal successors, (2592), 2062 states have internal predecessors, (2592), 726 states have call successors, (726), 153 states have call predecessors, (726), 152 states have return successors, (722), 710 states have call predecessors, (722), 722 states have call successors, (722) [2022-07-14 03:44:35,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2898 states to 2898 states and 4040 transitions. [2022-07-14 03:44:35,306 INFO L78 Accepts]: Start accepts. Automaton has 2898 states and 4040 transitions. Word has length 127 [2022-07-14 03:44:35,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 03:44:35,307 INFO L495 AbstractCegarLoop]: Abstraction has 2898 states and 4040 transitions. [2022-07-14 03:44:35,307 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-07-14 03:44:35,307 INFO L276 IsEmpty]: Start isEmpty. Operand 2898 states and 4040 transitions. [2022-07-14 03:44:35,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-07-14 03:44:35,310 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:44:35,310 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 03:44:35,311 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-14 03:44:35,311 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-14 03:44:35,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:44:35,311 INFO L85 PathProgramCache]: Analyzing trace with hash 1832228625, now seen corresponding path program 1 times [2022-07-14 03:44:35,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 03:44:35,312 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854961566] [2022-07-14 03:44:35,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:44:35,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 03:44:35,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:35,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 03:44:35,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:35,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:44:35,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:35,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 03:44:35,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:35,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:44:35,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:35,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-14 03:44:35,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:35,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:44:35,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:35,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-14 03:44:35,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:35,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:44:35,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:35,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-14 03:44:35,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:35,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:44:35,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:35,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-14 03:44:35,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:35,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:44:35,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:35,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-14 03:44:35,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:35,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:44:35,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:35,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-14 03:44:35,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:35,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:44:35,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:35,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-14 03:44:35,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:35,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:44:35,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:35,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-14 03:44:35,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:35,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-14 03:44:35,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:35,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-07-14 03:44:35,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:35,605 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2022-07-14 03:44:35,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 03:44:35,605 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854961566] [2022-07-14 03:44:35,605 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [854961566] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 03:44:35,605 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 03:44:35,605 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-14 03:44:35,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978427696] [2022-07-14 03:44:35,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 03:44:35,607 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-14 03:44:35,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 03:44:35,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-14 03:44:35,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-14 03:44:35,608 INFO L87 Difference]: Start difference. First operand 2898 states and 4040 transitions. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2022-07-14 03:44:38,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:44:38,192 INFO L93 Difference]: Finished difference Result 9088 states and 12775 transitions. [2022-07-14 03:44:38,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-14 03:44:38,195 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 131 [2022-07-14 03:44:38,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:44:38,227 INFO L225 Difference]: With dead ends: 9088 [2022-07-14 03:44:38,227 INFO L226 Difference]: Without dead ends: 6213 [2022-07-14 03:44:38,242 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-14 03:44:38,243 INFO L413 NwaCegarLoop]: 2177 mSDtfsCounter, 3036 mSDsluCounter, 1939 mSDsCounter, 0 mSdLazyCounter, 1765 mSolverCounterSat, 1364 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3392 SdHoareTripleChecker+Valid, 4116 SdHoareTripleChecker+Invalid, 3129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1364 IncrementalHoareTripleChecker+Valid, 1765 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-07-14 03:44:38,244 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3392 Valid, 4116 Invalid, 3129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1364 Valid, 1765 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-07-14 03:44:38,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6213 states. [2022-07-14 03:44:38,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6213 to 5879. [2022-07-14 03:44:38,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5879 states, 4126 states have (on average 1.2910809500727096) internal successors, (5327), 4230 states have internal predecessors, (5327), 1439 states have call successors, (1439), 304 states have call predecessors, (1439), 311 states have return successors, (1473), 1404 states have call predecessors, (1473), 1435 states have call successors, (1473) [2022-07-14 03:44:38,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5879 states to 5879 states and 8239 transitions. [2022-07-14 03:44:38,424 INFO L78 Accepts]: Start accepts. Automaton has 5879 states and 8239 transitions. Word has length 131 [2022-07-14 03:44:38,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 03:44:38,424 INFO L495 AbstractCegarLoop]: Abstraction has 5879 states and 8239 transitions. [2022-07-14 03:44:38,425 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2022-07-14 03:44:38,425 INFO L276 IsEmpty]: Start isEmpty. Operand 5879 states and 8239 transitions. [2022-07-14 03:44:38,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-07-14 03:44:38,427 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:44:38,427 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 03:44:38,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-14 03:44:38,427 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-14 03:44:38,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:44:38,428 INFO L85 PathProgramCache]: Analyzing trace with hash -40411670, now seen corresponding path program 1 times [2022-07-14 03:44:38,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 03:44:38,428 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657583029] [2022-07-14 03:44:38,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:44:38,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 03:44:38,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:38,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 03:44:38,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:38,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:44:38,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:38,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 03:44:38,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:38,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:44:38,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:38,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-14 03:44:38,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:38,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:44:38,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:38,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-14 03:44:38,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:38,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:44:38,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:38,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-14 03:44:38,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:38,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:44:38,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:38,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-14 03:44:38,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:38,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:44:38,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:38,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-14 03:44:38,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:38,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:44:38,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:38,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-14 03:44:38,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:38,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:44:38,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:38,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-14 03:44:38,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:38,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:44:38,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:38,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-14 03:44:38,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:38,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-14 03:44:38,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:38,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-07-14 03:44:38,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:38,663 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2022-07-14 03:44:38,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 03:44:38,664 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657583029] [2022-07-14 03:44:38,664 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [657583029] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 03:44:38,664 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 03:44:38,664 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-14 03:44:38,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470811177] [2022-07-14 03:44:38,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 03:44:38,665 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-14 03:44:38,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 03:44:38,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-14 03:44:38,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-14 03:44:38,666 INFO L87 Difference]: Start difference. First operand 5879 states and 8239 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2022-07-14 03:44:41,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:44:41,362 INFO L93 Difference]: Finished difference Result 17597 states and 24704 transitions. [2022-07-14 03:44:41,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-14 03:44:41,363 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 131 [2022-07-14 03:44:41,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:44:41,429 INFO L225 Difference]: With dead ends: 17597 [2022-07-14 03:44:41,429 INFO L226 Difference]: Without dead ends: 11741 [2022-07-14 03:44:41,458 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-14 03:44:41,460 INFO L413 NwaCegarLoop]: 2208 mSDtfsCounter, 2876 mSDsluCounter, 1974 mSDsCounter, 0 mSdLazyCounter, 1713 mSolverCounterSat, 1327 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3207 SdHoareTripleChecker+Valid, 4182 SdHoareTripleChecker+Invalid, 3040 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1327 IncrementalHoareTripleChecker+Valid, 1713 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-07-14 03:44:41,462 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3207 Valid, 4182 Invalid, 3040 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1327 Valid, 1713 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-07-14 03:44:41,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11741 states. [2022-07-14 03:44:41,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11741 to 10863. [2022-07-14 03:44:41,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10863 states, 7594 states have (on average 1.2845667632341322) internal successors, (9755), 7790 states have internal predecessors, (9755), 2669 states have call successors, (2669), 598 states have call predecessors, (2669), 597 states have return successors, (2711), 2586 states have call predecessors, (2711), 2665 states have call successors, (2711) [2022-07-14 03:44:41,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10863 states to 10863 states and 15135 transitions. [2022-07-14 03:44:41,880 INFO L78 Accepts]: Start accepts. Automaton has 10863 states and 15135 transitions. Word has length 131 [2022-07-14 03:44:41,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 03:44:41,882 INFO L495 AbstractCegarLoop]: Abstraction has 10863 states and 15135 transitions. [2022-07-14 03:44:41,883 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2022-07-14 03:44:41,883 INFO L276 IsEmpty]: Start isEmpty. Operand 10863 states and 15135 transitions. [2022-07-14 03:44:41,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-07-14 03:44:41,885 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:44:41,885 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 03:44:41,885 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-14 03:44:41,885 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-14 03:44:41,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:44:41,886 INFO L85 PathProgramCache]: Analyzing trace with hash -1974085133, now seen corresponding path program 1 times [2022-07-14 03:44:41,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 03:44:41,886 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229426669] [2022-07-14 03:44:41,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:44:41,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 03:44:41,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:42,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 03:44:42,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:42,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:44:42,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:42,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 03:44:42,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:42,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:44:42,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:42,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-14 03:44:42,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:42,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:44:42,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:42,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-14 03:44:42,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:42,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:44:42,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:42,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-14 03:44:42,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:42,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:44:42,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:42,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-14 03:44:42,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:42,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:44:42,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:42,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-14 03:44:42,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:42,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:44:42,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:42,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-14 03:44:42,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:42,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:44:42,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:42,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-14 03:44:42,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:42,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:44:42,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:42,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-14 03:44:42,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:42,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-07-14 03:44:42,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:42,110 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2022-07-14 03:44:42,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 03:44:42,111 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229426669] [2022-07-14 03:44:42,111 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1229426669] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 03:44:42,111 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 03:44:42,111 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-14 03:44:42,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633195030] [2022-07-14 03:44:42,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 03:44:42,112 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-14 03:44:42,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 03:44:42,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-14 03:44:42,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-07-14 03:44:42,112 INFO L87 Difference]: Start difference. First operand 10863 states and 15135 transitions. Second operand has 7 states, 6 states have (on average 7.166666666666667) internal successors, (43), 5 states have internal predecessors, (43), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-07-14 03:44:47,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:44:47,060 INFO L93 Difference]: Finished difference Result 26110 states and 36461 transitions. [2022-07-14 03:44:47,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-14 03:44:47,060 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 7.166666666666667) internal successors, (43), 5 states have internal predecessors, (43), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 137 [2022-07-14 03:44:47,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:44:47,129 INFO L225 Difference]: With dead ends: 26110 [2022-07-14 03:44:47,129 INFO L226 Difference]: Without dead ends: 15270 [2022-07-14 03:44:47,163 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-07-14 03:44:47,165 INFO L413 NwaCegarLoop]: 2382 mSDtfsCounter, 7676 mSDsluCounter, 2633 mSDsCounter, 0 mSdLazyCounter, 4320 mSolverCounterSat, 3641 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8227 SdHoareTripleChecker+Valid, 5015 SdHoareTripleChecker+Invalid, 7961 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3641 IncrementalHoareTripleChecker+Valid, 4320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-07-14 03:44:47,166 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8227 Valid, 5015 Invalid, 7961 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3641 Valid, 4320 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2022-07-14 03:44:47,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15270 states. [2022-07-14 03:44:47,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15270 to 13551. [2022-07-14 03:44:47,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13551 states, 9632 states have (on average 1.288828903654485) internal successors, (12414), 9865 states have internal predecessors, (12414), 3111 states have call successors, (3111), 820 states have call predecessors, (3111), 805 states have return successors, (3127), 2987 states have call predecessors, (3127), 3107 states have call successors, (3127) [2022-07-14 03:44:47,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13551 states to 13551 states and 18652 transitions. [2022-07-14 03:44:47,572 INFO L78 Accepts]: Start accepts. Automaton has 13551 states and 18652 transitions. Word has length 137 [2022-07-14 03:44:47,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 03:44:47,573 INFO L495 AbstractCegarLoop]: Abstraction has 13551 states and 18652 transitions. [2022-07-14 03:44:47,573 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 7.166666666666667) internal successors, (43), 5 states have internal predecessors, (43), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-07-14 03:44:47,573 INFO L276 IsEmpty]: Start isEmpty. Operand 13551 states and 18652 transitions. [2022-07-14 03:44:47,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2022-07-14 03:44:47,575 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:44:47,575 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 03:44:47,575 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-14 03:44:47,576 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-14 03:44:47,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:44:47,577 INFO L85 PathProgramCache]: Analyzing trace with hash 166037984, now seen corresponding path program 1 times [2022-07-14 03:44:47,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 03:44:47,577 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821689863] [2022-07-14 03:44:47,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:44:47,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 03:44:47,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:47,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 03:44:47,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:47,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:44:47,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:47,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 03:44:47,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:47,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:44:47,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:47,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-14 03:44:47,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:47,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:44:47,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:47,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-14 03:44:47,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:47,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:44:47,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:47,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-14 03:44:47,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:47,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:44:47,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:47,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-14 03:44:47,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:47,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:44:47,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:47,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-14 03:44:47,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:47,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:44:47,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:47,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-14 03:44:47,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:47,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:44:47,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:47,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-14 03:44:47,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:47,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:44:47,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:47,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-14 03:44:47,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:47,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-14 03:44:47,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:47,964 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2022-07-14 03:44:47,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 03:44:47,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821689863] [2022-07-14 03:44:47,964 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821689863] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 03:44:47,964 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 03:44:47,964 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-14 03:44:47,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678968286] [2022-07-14 03:44:47,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 03:44:47,965 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-14 03:44:47,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 03:44:47,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-14 03:44:47,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-14 03:44:47,966 INFO L87 Difference]: Start difference. First operand 13551 states and 18652 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-07-14 03:44:50,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:44:50,692 INFO L93 Difference]: Finished difference Result 38016 states and 52715 transitions. [2022-07-14 03:44:50,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-14 03:44:50,693 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 140 [2022-07-14 03:44:50,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:44:50,796 INFO L225 Difference]: With dead ends: 38016 [2022-07-14 03:44:50,797 INFO L226 Difference]: Without dead ends: 24488 [2022-07-14 03:44:50,976 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-14 03:44:50,977 INFO L413 NwaCegarLoop]: 2143 mSDtfsCounter, 2858 mSDsluCounter, 1896 mSDsCounter, 0 mSdLazyCounter, 1790 mSolverCounterSat, 1341 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3198 SdHoareTripleChecker+Valid, 4039 SdHoareTripleChecker+Invalid, 3131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1341 IncrementalHoareTripleChecker+Valid, 1790 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-07-14 03:44:50,979 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3198 Valid, 4039 Invalid, 3131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1341 Valid, 1790 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-07-14 03:44:50,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24488 states. [2022-07-14 03:44:51,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24488 to 21909. [2022-07-14 03:44:51,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21909 states, 15452 states have (on average 1.2848822158943827) internal successors, (19854), 15829 states have internal predecessors, (19854), 5114 states have call successors, (5114), 1377 states have call predecessors, (5114), 1340 states have return successors, (5137), 4883 states have call predecessors, (5137), 5110 states have call successors, (5137) [2022-07-14 03:44:51,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21909 states to 21909 states and 30105 transitions. [2022-07-14 03:44:51,762 INFO L78 Accepts]: Start accepts. Automaton has 21909 states and 30105 transitions. Word has length 140 [2022-07-14 03:44:51,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 03:44:51,763 INFO L495 AbstractCegarLoop]: Abstraction has 21909 states and 30105 transitions. [2022-07-14 03:44:51,763 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-07-14 03:44:51,763 INFO L276 IsEmpty]: Start isEmpty. Operand 21909 states and 30105 transitions. [2022-07-14 03:44:51,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-07-14 03:44:51,766 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:44:51,766 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 9, 9, 9, 9, 9, 9, 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] [2022-07-14 03:44:51,766 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-14 03:44:51,766 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-14 03:44:51,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:44:51,767 INFO L85 PathProgramCache]: Analyzing trace with hash 1581152686, now seen corresponding path program 1 times [2022-07-14 03:44:51,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 03:44:51,768 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137242536] [2022-07-14 03:44:51,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:44:51,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 03:44:51,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:51,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 03:44:51,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:51,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:44:51,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:51,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 03:44:51,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:51,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:44:51,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:51,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-14 03:44:51,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:51,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:44:51,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:51,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-14 03:44:51,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:51,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:44:51,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:52,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-14 03:44:52,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:52,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:44:52,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:52,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-14 03:44:52,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:52,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:44:52,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:52,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-14 03:44:52,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:52,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:44:52,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:52,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-14 03:44:52,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:52,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:44:52,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:52,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-14 03:44:52,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:52,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:44:52,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:52,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-14 03:44:52,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:52,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-14 03:44:52,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:52,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-14 03:44:52,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:52,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-07-14 03:44:52,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:52,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-07-14 03:44:52,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:52,061 INFO L134 CoverageAnalysis]: Checked inductivity of 388 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 381 trivial. 0 not checked. [2022-07-14 03:44:52,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 03:44:52,062 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137242536] [2022-07-14 03:44:52,062 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2137242536] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 03:44:52,062 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 03:44:52,062 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-14 03:44:52,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034757335] [2022-07-14 03:44:52,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 03:44:52,063 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-14 03:44:52,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 03:44:52,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-14 03:44:52,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-14 03:44:52,063 INFO L87 Difference]: Start difference. First operand 21909 states and 30105 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-07-14 03:44:55,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:44:55,540 INFO L93 Difference]: Finished difference Result 69347 states and 96115 transitions. [2022-07-14 03:44:55,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-14 03:44:55,541 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 154 [2022-07-14 03:44:55,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:44:55,756 INFO L225 Difference]: With dead ends: 69347 [2022-07-14 03:44:55,756 INFO L226 Difference]: Without dead ends: 47461 [2022-07-14 03:44:55,824 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-14 03:44:55,825 INFO L413 NwaCegarLoop]: 2361 mSDtfsCounter, 3047 mSDsluCounter, 2074 mSDsCounter, 0 mSdLazyCounter, 1813 mSolverCounterSat, 1346 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3420 SdHoareTripleChecker+Valid, 4435 SdHoareTripleChecker+Invalid, 3159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1346 IncrementalHoareTripleChecker+Valid, 1813 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-07-14 03:44:55,825 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3420 Valid, 4435 Invalid, 3159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1346 Valid, 1813 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-07-14 03:44:55,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47461 states. [2022-07-14 03:44:57,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47461 to 42363. [2022-07-14 03:44:57,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42363 states, 29835 states have (on average 1.2851013909837439) internal successors, (38341), 30611 states have internal predecessors, (38341), 9922 states have call successors, (9922), 2676 states have call predecessors, (9922), 2603 states have return successors, (9972), 9429 states have call predecessors, (9972), 9918 states have call successors, (9972) [2022-07-14 03:44:57,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42363 states to 42363 states and 58235 transitions. [2022-07-14 03:44:57,353 INFO L78 Accepts]: Start accepts. Automaton has 42363 states and 58235 transitions. Word has length 154 [2022-07-14 03:44:57,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 03:44:57,353 INFO L495 AbstractCegarLoop]: Abstraction has 42363 states and 58235 transitions. [2022-07-14 03:44:57,354 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-07-14 03:44:57,354 INFO L276 IsEmpty]: Start isEmpty. Operand 42363 states and 58235 transitions. [2022-07-14 03:44:57,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-07-14 03:44:57,356 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:44:57,356 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 03:44:57,356 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-14 03:44:57,356 INFO L420 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)] === [2022-07-14 03:44:57,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:44:57,357 INFO L85 PathProgramCache]: Analyzing trace with hash -648134910, now seen corresponding path program 1 times [2022-07-14 03:44:57,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 03:44:57,357 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081242898] [2022-07-14 03:44:57,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:44:57,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 03:44:57,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:57,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 03:44:57,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:57,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:44:57,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:57,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 03:44:57,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:57,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:44:57,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:57,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-14 03:44:57,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:57,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:44:57,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:57,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-14 03:44:57,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:57,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:44:57,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:57,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-14 03:44:57,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:57,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:44:57,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:57,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-14 03:44:57,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:57,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:44:57,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:57,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-14 03:44:57,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:57,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:44:57,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:57,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-14 03:44:57,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:57,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:44:57,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:57,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-14 03:44:57,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:57,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:44:57,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:57,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-14 03:44:57,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:57,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-14 03:44:57,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:57,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-14 03:44:57,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:57,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-07-14 03:44:57,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:57,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-07-14 03:44:57,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:57,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:44:57,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:57,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-07-14 03:44:57,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:57,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-07-14 03:44:57,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:57,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-07-14 03:44:57,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:44:57,722 INFO L134 CoverageAnalysis]: Checked inductivity of 484 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 474 trivial. 0 not checked. [2022-07-14 03:44:57,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 03:44:57,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081242898] [2022-07-14 03:44:57,722 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1081242898] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 03:44:57,722 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 03:44:57,722 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-14 03:44:57,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230394448] [2022-07-14 03:44:57,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 03:44:57,723 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-14 03:44:57,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 03:44:57,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-14 03:44:57,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-14 03:44:57,724 INFO L87 Difference]: Start difference. First operand 42363 states and 58235 transitions. Second operand has 4 states, 4 states have (on average 17.0) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-07-14 03:45:02,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:45:02,460 INFO L93 Difference]: Finished difference Result 136979 states and 192158 transitions. [2022-07-14 03:45:02,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-14 03:45:02,462 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 189 [2022-07-14 03:45:02,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:45:03,254 INFO L225 Difference]: With dead ends: 136979 [2022-07-14 03:45:03,254 INFO L226 Difference]: Without dead ends: 94695 [2022-07-14 03:45:03,387 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-14 03:45:03,388 INFO L413 NwaCegarLoop]: 3187 mSDtfsCounter, 2586 mSDsluCounter, 2323 mSDsCounter, 0 mSdLazyCounter, 1883 mSolverCounterSat, 1222 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2961 SdHoareTripleChecker+Valid, 5510 SdHoareTripleChecker+Invalid, 3105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1222 IncrementalHoareTripleChecker+Valid, 1883 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-07-14 03:45:03,388 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2961 Valid, 5510 Invalid, 3105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1222 Valid, 1883 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-07-14 03:45:03,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94695 states. [2022-07-14 03:45:06,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94695 to 84621. [2022-07-14 03:45:06,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84621 states, 59595 states have (on average 1.2736135581844115) internal successors, (75901), 61145 states have internal predecessors, (75901), 19818 states have call successors, (19818), 5350 states have call predecessors, (19818), 5205 states have return successors, (20692), 18833 states have call predecessors, (20692), 19814 states have call successors, (20692) [2022-07-14 03:45:07,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84621 states to 84621 states and 116411 transitions. [2022-07-14 03:45:07,223 INFO L78 Accepts]: Start accepts. Automaton has 84621 states and 116411 transitions. Word has length 189 [2022-07-14 03:45:07,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 03:45:07,224 INFO L495 AbstractCegarLoop]: Abstraction has 84621 states and 116411 transitions. [2022-07-14 03:45:07,224 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-07-14 03:45:07,224 INFO L276 IsEmpty]: Start isEmpty. Operand 84621 states and 116411 transitions. [2022-07-14 03:45:07,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-07-14 03:45:07,227 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:45:07,228 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 03:45:07,228 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-14 03:45:07,228 INFO L420 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)] === [2022-07-14 03:45:07,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:45:07,228 INFO L85 PathProgramCache]: Analyzing trace with hash 1960652548, now seen corresponding path program 1 times [2022-07-14 03:45:07,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 03:45:07,229 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728630569] [2022-07-14 03:45:07,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:45:07,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 03:45:07,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:07,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 03:45:07,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:07,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:45:07,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:07,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 03:45:07,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:07,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:45:07,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:07,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-14 03:45:07,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:07,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:45:07,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:07,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-14 03:45:07,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:07,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:45:07,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:07,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-14 03:45:07,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:07,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:45:07,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:07,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-14 03:45:07,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:07,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:45:07,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:07,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-14 03:45:07,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:07,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:45:07,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:07,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-14 03:45:07,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:07,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:45:07,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:07,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-14 03:45:07,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:07,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:45:07,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:07,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-14 03:45:07,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:07,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-14 03:45:07,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:07,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-14 03:45:07,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:07,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-07-14 03:45:07,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:07,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-07-14 03:45:07,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:07,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:45:07,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:07,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-07-14 03:45:07,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:07,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-07-14 03:45:07,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:07,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-07-14 03:45:07,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:07,452 INFO L134 CoverageAnalysis]: Checked inductivity of 484 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 474 trivial. 0 not checked. [2022-07-14 03:45:07,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 03:45:07,452 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728630569] [2022-07-14 03:45:07,453 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1728630569] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 03:45:07,453 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 03:45:07,453 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-14 03:45:07,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838956833] [2022-07-14 03:45:07,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 03:45:07,453 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-14 03:45:07,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 03:45:07,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-14 03:45:07,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-14 03:45:07,454 INFO L87 Difference]: Start difference. First operand 84621 states and 116411 transitions. Second operand has 4 states, 4 states have (on average 17.0) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-07-14 03:45:10,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:45:10,183 INFO L93 Difference]: Finished difference Result 131929 states and 181425 transitions. [2022-07-14 03:45:10,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-14 03:45:10,195 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 189 [2022-07-14 03:45:10,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:45:10,396 INFO L225 Difference]: With dead ends: 131929 [2022-07-14 03:45:10,396 INFO L226 Difference]: Without dead ends: 47387 [2022-07-14 03:45:10,637 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-14 03:45:10,637 INFO L413 NwaCegarLoop]: 1922 mSDtfsCounter, 2350 mSDsluCounter, 743 mSDsCounter, 0 mSdLazyCounter, 439 mSolverCounterSat, 967 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2543 SdHoareTripleChecker+Valid, 2665 SdHoareTripleChecker+Invalid, 1406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 967 IncrementalHoareTripleChecker+Valid, 439 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-07-14 03:45:10,637 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2543 Valid, 2665 Invalid, 1406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [967 Valid, 439 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-07-14 03:45:10,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47387 states. [2022-07-14 03:45:12,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47387 to 42363. [2022-07-14 03:45:12,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42363 states, 29835 states have (on average 1.2600301659125188) internal successors, (37593), 30611 states have internal predecessors, (37593), 9922 states have call successors, (9922), 2676 states have call predecessors, (9922), 2603 states have return successors, (9972), 9429 states have call predecessors, (9972), 9918 states have call successors, (9972) [2022-07-14 03:45:12,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42363 states to 42363 states and 57487 transitions. [2022-07-14 03:45:12,339 INFO L78 Accepts]: Start accepts. Automaton has 42363 states and 57487 transitions. Word has length 189 [2022-07-14 03:45:12,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 03:45:12,340 INFO L495 AbstractCegarLoop]: Abstraction has 42363 states and 57487 transitions. [2022-07-14 03:45:12,340 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-07-14 03:45:12,340 INFO L276 IsEmpty]: Start isEmpty. Operand 42363 states and 57487 transitions. [2022-07-14 03:45:12,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-07-14 03:45:12,345 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:45:12,345 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 03:45:12,345 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-14 03:45:12,346 INFO L420 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)] === [2022-07-14 03:45:12,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:45:12,346 INFO L85 PathProgramCache]: Analyzing trace with hash 1906259650, now seen corresponding path program 1 times [2022-07-14 03:45:12,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 03:45:12,346 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725054798] [2022-07-14 03:45:12,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:45:12,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 03:45:12,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:12,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 03:45:12,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:12,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:45:12,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:12,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 03:45:12,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:12,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:45:12,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:12,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-14 03:45:12,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:12,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:45:12,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:12,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-14 03:45:12,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:12,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:45:12,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:12,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-14 03:45:12,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:12,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:45:12,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:12,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-14 03:45:12,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:12,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:45:12,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:12,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-14 03:45:12,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:12,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:45:12,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:12,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-14 03:45:12,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:12,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:45:12,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:12,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-14 03:45:12,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:12,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:45:12,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:12,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-14 03:45:12,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:12,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-14 03:45:12,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:12,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-14 03:45:12,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:12,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-07-14 03:45:12,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:12,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-07-14 03:45:12,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:12,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:45:12,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:12,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-07-14 03:45:12,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:12,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-07-14 03:45:12,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:12,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-07-14 03:45:12,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:12,805 INFO L134 CoverageAnalysis]: Checked inductivity of 484 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 474 trivial. 0 not checked. [2022-07-14 03:45:12,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 03:45:12,805 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725054798] [2022-07-14 03:45:12,805 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1725054798] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 03:45:12,805 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 03:45:12,805 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-14 03:45:12,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262115411] [2022-07-14 03:45:12,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 03:45:12,806 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-14 03:45:12,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 03:45:12,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-14 03:45:12,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-14 03:45:12,808 INFO L87 Difference]: Start difference. First operand 42363 states and 57487 transitions. Second operand has 4 states, 4 states have (on average 17.0) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-07-14 03:45:15,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:45:15,616 INFO L93 Difference]: Finished difference Result 89623 states and 122405 transitions. [2022-07-14 03:45:15,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-14 03:45:15,616 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 189 [2022-07-14 03:45:15,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:45:15,787 INFO L225 Difference]: With dead ends: 89623 [2022-07-14 03:45:15,787 INFO L226 Difference]: Without dead ends: 47339 [2022-07-14 03:45:15,892 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-14 03:45:15,892 INFO L413 NwaCegarLoop]: 1909 mSDtfsCounter, 2345 mSDsluCounter, 735 mSDsCounter, 0 mSdLazyCounter, 445 mSolverCounterSat, 976 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2538 SdHoareTripleChecker+Valid, 2644 SdHoareTripleChecker+Invalid, 1421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 976 IncrementalHoareTripleChecker+Valid, 445 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-14 03:45:15,892 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2538 Valid, 2644 Invalid, 1421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [976 Valid, 445 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-14 03:45:15,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47339 states. [2022-07-14 03:45:17,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47339 to 42315. [2022-07-14 03:45:17,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42315 states, 29787 states have (on average 1.2540034243126197) internal successors, (37353), 30563 states have internal predecessors, (37353), 9922 states have call successors, (9922), 2676 states have call predecessors, (9922), 2603 states have return successors, (9972), 9429 states have call predecessors, (9972), 9918 states have call successors, (9972) [2022-07-14 03:45:17,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42315 states to 42315 states and 57247 transitions. [2022-07-14 03:45:17,431 INFO L78 Accepts]: Start accepts. Automaton has 42315 states and 57247 transitions. Word has length 189 [2022-07-14 03:45:17,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 03:45:17,432 INFO L495 AbstractCegarLoop]: Abstraction has 42315 states and 57247 transitions. [2022-07-14 03:45:17,432 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-07-14 03:45:17,432 INFO L276 IsEmpty]: Start isEmpty. Operand 42315 states and 57247 transitions. [2022-07-14 03:45:17,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2022-07-14 03:45:17,434 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:45:17,434 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 03:45:17,434 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-14 03:45:17,435 INFO L420 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)] === [2022-07-14 03:45:17,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:45:17,435 INFO L85 PathProgramCache]: Analyzing trace with hash 611798263, now seen corresponding path program 1 times [2022-07-14 03:45:17,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 03:45:17,435 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553776904] [2022-07-14 03:45:17,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:45:17,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 03:45:17,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:17,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 03:45:17,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:17,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:45:17,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:17,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 03:45:17,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:17,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:45:17,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:17,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-14 03:45:17,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:17,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:45:17,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:17,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-14 03:45:17,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:17,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:45:17,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:17,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-14 03:45:17,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:17,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:45:17,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:17,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-14 03:45:17,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:17,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:45:17,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:17,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-14 03:45:17,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:17,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:45:17,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:17,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-14 03:45:17,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:17,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:45:17,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:17,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-14 03:45:17,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:17,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:45:17,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:17,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-14 03:45:17,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:17,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-14 03:45:17,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:17,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-14 03:45:17,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:17,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-14 03:45:17,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:17,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-07-14 03:45:17,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:17,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:45:17,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:17,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-07-14 03:45:17,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:17,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2022-07-14 03:45:17,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:17,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-07-14 03:45:17,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:17,598 INFO L134 CoverageAnalysis]: Checked inductivity of 484 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 474 trivial. 0 not checked. [2022-07-14 03:45:17,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 03:45:17,598 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553776904] [2022-07-14 03:45:17,598 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [553776904] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 03:45:17,598 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 03:45:17,598 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-14 03:45:17,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757417272] [2022-07-14 03:45:17,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 03:45:17,599 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-14 03:45:17,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 03:45:17,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-14 03:45:17,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-14 03:45:17,600 INFO L87 Difference]: Start difference. First operand 42315 states and 57247 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 3 states have internal predecessors, (71), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-07-14 03:45:23,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:45:23,141 INFO L93 Difference]: Finished difference Result 133613 states and 182465 transitions. [2022-07-14 03:45:23,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-14 03:45:23,142 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 3 states have internal predecessors, (71), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 192 [2022-07-14 03:45:23,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:45:23,828 INFO L225 Difference]: With dead ends: 133613 [2022-07-14 03:45:23,829 INFO L226 Difference]: Without dead ends: 91377 [2022-07-14 03:45:23,959 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-14 03:45:23,960 INFO L413 NwaCegarLoop]: 2965 mSDtfsCounter, 2729 mSDsluCounter, 2356 mSDsCounter, 0 mSdLazyCounter, 1801 mSolverCounterSat, 1132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3089 SdHoareTripleChecker+Valid, 5321 SdHoareTripleChecker+Invalid, 2933 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1132 IncrementalHoareTripleChecker+Valid, 1801 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-07-14 03:45:23,960 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3089 Valid, 5321 Invalid, 2933 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1132 Valid, 1801 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-07-14 03:45:24,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91377 states. [2022-07-14 03:45:26,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91377 to 81325. [2022-07-14 03:45:26,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81325 states, 57323 states have (on average 1.254662177485477) internal successors, (71921), 58649 states have internal predecessors, (71921), 18954 states have call successors, (18954), 5158 states have call predecessors, (18954), 5045 states have return successors, (19058), 18225 states have call predecessors, (19058), 18950 states have call successors, (19058) [2022-07-14 03:45:27,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81325 states to 81325 states and 109933 transitions. [2022-07-14 03:45:27,278 INFO L78 Accepts]: Start accepts. Automaton has 81325 states and 109933 transitions. Word has length 192 [2022-07-14 03:45:27,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 03:45:27,279 INFO L495 AbstractCegarLoop]: Abstraction has 81325 states and 109933 transitions. [2022-07-14 03:45:27,279 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 3 states have internal predecessors, (71), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-07-14 03:45:27,279 INFO L276 IsEmpty]: Start isEmpty. Operand 81325 states and 109933 transitions. [2022-07-14 03:45:27,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2022-07-14 03:45:27,281 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:45:27,281 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 03:45:27,282 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-14 03:45:27,282 INFO L420 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)] === [2022-07-14 03:45:27,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:45:27,282 INFO L85 PathProgramCache]: Analyzing trace with hash 752346873, now seen corresponding path program 1 times [2022-07-14 03:45:27,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 03:45:27,282 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834458773] [2022-07-14 03:45:27,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:45:27,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 03:45:27,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:27,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 03:45:27,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:27,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:45:27,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:27,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 03:45:27,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:27,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:45:27,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:27,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-14 03:45:27,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:27,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:45:27,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:27,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-14 03:45:27,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:27,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:45:27,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:27,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-14 03:45:27,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:27,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:45:27,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:27,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-14 03:45:27,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:27,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:45:27,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:27,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-14 03:45:27,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:27,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:45:27,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:27,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-14 03:45:27,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:27,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:45:27,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:27,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-14 03:45:27,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:27,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:45:27,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:27,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-14 03:45:27,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:27,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-14 03:45:27,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:27,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-14 03:45:27,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:27,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-14 03:45:27,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:27,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-07-14 03:45:27,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:27,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:45:27,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:27,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-07-14 03:45:27,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:27,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2022-07-14 03:45:27,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:27,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-07-14 03:45:27,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:27,615 INFO L134 CoverageAnalysis]: Checked inductivity of 484 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 484 trivial. 0 not checked. [2022-07-14 03:45:27,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 03:45:27,615 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834458773] [2022-07-14 03:45:27,615 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [834458773] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 03:45:27,615 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 03:45:27,616 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-14 03:45:27,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582902970] [2022-07-14 03:45:27,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 03:45:27,617 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 03:45:27,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 03:45:27,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 03:45:27,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-14 03:45:27,617 INFO L87 Difference]: Start difference. First operand 81325 states and 109933 transitions. Second operand has 6 states, 6 states have (on average 10.5) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-14 03:45:32,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:45:32,345 INFO L93 Difference]: Finished difference Result 91379 states and 125075 transitions. [2022-07-14 03:45:32,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 03:45:32,346 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 192 [2022-07-14 03:45:32,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:45:32,665 INFO L225 Difference]: With dead ends: 91379 [2022-07-14 03:45:32,666 INFO L226 Difference]: Without dead ends: 91377 [2022-07-14 03:45:32,707 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-14 03:45:32,707 INFO L413 NwaCegarLoop]: 1903 mSDtfsCounter, 2342 mSDsluCounter, 3031 mSDsCounter, 0 mSdLazyCounter, 2347 mSolverCounterSat, 979 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2530 SdHoareTripleChecker+Valid, 4934 SdHoareTripleChecker+Invalid, 3326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 979 IncrementalHoareTripleChecker+Valid, 2347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-07-14 03:45:32,708 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2530 Valid, 4934 Invalid, 3326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [979 Valid, 2347 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-07-14 03:45:32,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91377 states. [2022-07-14 03:45:35,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91377 to 81329. [2022-07-14 03:45:35,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81329 states, 57326 states have (on average 1.2546488504343578) internal successors, (71924), 58652 states have internal predecessors, (71924), 18954 states have call successors, (18954), 5159 states have call predecessors, (18954), 5046 states have return successors, (19058), 18225 states have call predecessors, (19058), 18950 states have call successors, (19058) [2022-07-14 03:45:36,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81329 states to 81329 states and 109936 transitions. [2022-07-14 03:45:36,028 INFO L78 Accepts]: Start accepts. Automaton has 81329 states and 109936 transitions. Word has length 192 [2022-07-14 03:45:36,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 03:45:36,028 INFO L495 AbstractCegarLoop]: Abstraction has 81329 states and 109936 transitions. [2022-07-14 03:45:36,029 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-14 03:45:36,029 INFO L276 IsEmpty]: Start isEmpty. Operand 81329 states and 109936 transitions. [2022-07-14 03:45:36,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-07-14 03:45:36,031 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:45:36,031 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 4, 4, 4, 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] [2022-07-14 03:45:36,031 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-14 03:45:36,032 INFO L420 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)] === [2022-07-14 03:45:36,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:45:36,032 INFO L85 PathProgramCache]: Analyzing trace with hash 172767208, now seen corresponding path program 1 times [2022-07-14 03:45:36,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 03:45:36,032 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208674329] [2022-07-14 03:45:36,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:45:36,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 03:45:36,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:36,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 03:45:36,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:36,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:45:36,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:36,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 03:45:36,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:36,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:45:36,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:36,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-14 03:45:36,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:36,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:45:36,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:36,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-14 03:45:36,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:36,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:45:36,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:36,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-14 03:45:36,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:36,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:45:36,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:36,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-14 03:45:36,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:36,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:45:36,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:36,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-14 03:45:36,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:36,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:45:36,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:36,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-14 03:45:36,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:36,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:45:36,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:36,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-14 03:45:36,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:36,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:45:36,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:36,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-14 03:45:36,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:36,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-14 03:45:36,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:36,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-14 03:45:36,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:36,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-14 03:45:36,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:36,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-07-14 03:45:36,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:36,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:45:36,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:36,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-07-14 03:45:36,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:36,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2022-07-14 03:45:36,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:36,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-07-14 03:45:36,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:36,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-07-14 03:45:36,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:36,546 INFO L134 CoverageAnalysis]: Checked inductivity of 486 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 484 trivial. 0 not checked. [2022-07-14 03:45:36,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 03:45:36,547 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208674329] [2022-07-14 03:45:36,547 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [208674329] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 03:45:36,547 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 03:45:36,547 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-14 03:45:36,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968779594] [2022-07-14 03:45:36,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 03:45:36,548 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 03:45:36,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 03:45:36,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 03:45:36,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-14 03:45:36,549 INFO L87 Difference]: Start difference. First operand 81329 states and 109936 transitions. Second operand has 6 states, 6 states have (on average 11.0) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (21), 4 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-07-14 03:45:41,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:45:41,626 INFO L93 Difference]: Finished difference Result 91383 states and 125078 transitions. [2022-07-14 03:45:41,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 03:45:41,627 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (21), 4 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 197 [2022-07-14 03:45:41,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:45:42,105 INFO L225 Difference]: With dead ends: 91383 [2022-07-14 03:45:42,105 INFO L226 Difference]: Without dead ends: 91381 [2022-07-14 03:45:42,174 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-14 03:45:42,175 INFO L413 NwaCegarLoop]: 1906 mSDtfsCounter, 2334 mSDsluCounter, 3031 mSDsCounter, 0 mSdLazyCounter, 2347 mSolverCounterSat, 978 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2522 SdHoareTripleChecker+Valid, 4937 SdHoareTripleChecker+Invalid, 3325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 978 IncrementalHoareTripleChecker+Valid, 2347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-07-14 03:45:42,175 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2522 Valid, 4937 Invalid, 3325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [978 Valid, 2347 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-07-14 03:45:42,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91381 states. [2022-07-14 03:45:45,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91381 to 81333. [2022-07-14 03:45:45,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81333 states, 57329 states have (on average 1.2546355247780356) internal successors, (71927), 58655 states have internal predecessors, (71927), 18954 states have call successors, (18954), 5160 states have call predecessors, (18954), 5047 states have return successors, (19058), 18225 states have call predecessors, (19058), 18950 states have call successors, (19058) [2022-07-14 03:45:46,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81333 states to 81333 states and 109939 transitions. [2022-07-14 03:45:46,408 INFO L78 Accepts]: Start accepts. Automaton has 81333 states and 109939 transitions. Word has length 197 [2022-07-14 03:45:46,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 03:45:46,409 INFO L495 AbstractCegarLoop]: Abstraction has 81333 states and 109939 transitions. [2022-07-14 03:45:46,409 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (21), 4 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-07-14 03:45:46,409 INFO L276 IsEmpty]: Start isEmpty. Operand 81333 states and 109939 transitions. [2022-07-14 03:45:46,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2022-07-14 03:45:46,413 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:45:46,413 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 4, 4, 4, 3, 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] [2022-07-14 03:45:46,413 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-14 03:45:46,414 INFO L420 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)] === [2022-07-14 03:45:46,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:45:46,414 INFO L85 PathProgramCache]: Analyzing trace with hash -1862452199, now seen corresponding path program 1 times [2022-07-14 03:45:46,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 03:45:46,415 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863165297] [2022-07-14 03:45:46,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:45:46,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 03:45:46,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:46,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 03:45:46,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:46,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:45:46,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:46,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 03:45:46,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:46,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:45:46,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:46,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-14 03:45:46,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:46,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:45:46,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:46,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-14 03:45:46,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:46,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:45:46,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:46,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-14 03:45:46,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:46,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:45:46,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:46,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-14 03:45:46,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:46,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:45:46,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:46,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-14 03:45:46,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:46,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:45:46,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:46,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-14 03:45:46,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:46,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:45:46,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:46,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-14 03:45:46,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:46,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:45:46,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:46,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-14 03:45:46,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:46,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-14 03:45:46,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:46,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-14 03:45:46,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:46,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-14 03:45:46,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:46,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-07-14 03:45:46,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:46,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:45:46,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:46,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-07-14 03:45:46,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:46,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2022-07-14 03:45:46,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:46,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-07-14 03:45:46,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:46,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-07-14 03:45:46,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:46,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2022-07-14 03:45:46,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:45:46,684 INFO L134 CoverageAnalysis]: Checked inductivity of 492 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 488 trivial. 0 not checked. [2022-07-14 03:45:46,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 03:45:46,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [863165297] [2022-07-14 03:45:46,684 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [863165297] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 03:45:46,684 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 03:45:46,684 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-14 03:45:46,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165803499] [2022-07-14 03:45:46,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 03:45:46,686 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 03:45:46,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 03:45:46,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 03:45:46,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-14 03:45:46,687 INFO L87 Difference]: Start difference. First operand 81333 states and 109939 transitions. Second operand has 6 states, 6 states have (on average 11.0) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (22), 4 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20)