./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c3fed411 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.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 463dbca1530ea0e57c159e9405d50f794488f63283b3e27908f44b92b1921358 --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-18 14:59:05,292 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-18 14:59:05,294 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-18 14:59:05,328 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-18 14:59:05,328 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-18 14:59:05,329 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-18 14:59:05,330 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-18 14:59:05,332 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-18 14:59:05,333 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-18 14:59:05,336 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-18 14:59:05,337 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-18 14:59:05,338 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-18 14:59:05,339 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-18 14:59:05,340 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-18 14:59:05,342 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-18 14:59:05,346 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-18 14:59:05,347 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-18 14:59:05,347 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-18 14:59:05,349 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-18 14:59:05,353 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-18 14:59:05,355 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-18 14:59:05,357 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-18 14:59:05,357 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-18 14:59:05,358 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-18 14:59:05,359 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-18 14:59:05,359 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-18 14:59:05,360 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-18 14:59:05,360 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-18 14:59:05,360 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-18 14:59:05,361 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-18 14:59:05,361 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-18 14:59:05,362 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-18 14:59:05,362 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-18 14:59:05,363 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-18 14:59:05,363 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-18 14:59:05,363 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-18 14:59:05,364 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-18 14:59:05,364 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-18 14:59:05,364 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-18 14:59:05,365 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-18 14:59:05,365 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-18 14:59:05,366 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-18 14:59:05,386 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-18 14:59:05,386 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-18 14:59:05,386 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-18 14:59:05,387 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-18 14:59:05,387 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-18 14:59:05,387 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-18 14:59:05,388 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-18 14:59:05,388 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-18 14:59:05,388 INFO L138 SettingsManager]: * Use SBE=true [2021-12-18 14:59:05,388 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-18 14:59:05,389 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-18 14:59:05,389 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-18 14:59:05,389 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-18 14:59:05,389 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-18 14:59:05,389 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-18 14:59:05,390 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-18 14:59:05,390 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-18 14:59:05,390 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-18 14:59:05,390 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-18 14:59:05,390 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-18 14:59:05,390 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-18 14:59:05,391 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-18 14:59:05,391 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-18 14:59:05,391 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-18 14:59:05,391 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-18 14:59:05,391 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-18 14:59:05,391 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-18 14:59:05,392 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-18 14:59:05,392 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-18 14:59:05,392 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-18 14:59:05,392 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-18 14:59:05,392 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 463dbca1530ea0e57c159e9405d50f794488f63283b3e27908f44b92b1921358 [2021-12-18 14:59:05,574 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-18 14:59:05,588 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-18 14:59:05,590 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-18 14:59:05,591 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-18 14:59:05,591 INFO L275 PluginConnector]: CDTParser initialized [2021-12-18 14:59:05,592 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i [2021-12-18 14:59:05,638 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a3754db1/bea187a0951042c2b033b0d9d070d544/FLAGd77e8af1f [2021-12-18 14:59:06,312 INFO L306 CDTParser]: Found 1 translation units. [2021-12-18 14:59:06,313 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i [2021-12-18 14:59:06,360 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a3754db1/bea187a0951042c2b033b0d9d070d544/FLAGd77e8af1f [2021-12-18 14:59:06,616 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a3754db1/bea187a0951042c2b033b0d9d070d544 [2021-12-18 14:59:06,618 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-18 14:59:06,619 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-18 14:59:06,622 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-18 14:59:06,627 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-18 14:59:06,629 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-18 14:59:06,630 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 02:59:06" (1/1) ... [2021-12-18 14:59:06,630 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a299c85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:59:06, skipping insertion in model container [2021-12-18 14:59:06,630 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 02:59:06" (1/1) ... [2021-12-18 14:59:06,634 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-18 14:59:06,766 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-18 14:59:10,422 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i[487146,487159] [2021-12-18 14:59:10,424 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i[487315,487328] [2021-12-18 14:59:10,424 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i[487482,487495] [2021-12-18 14:59:10,425 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i[487650,487663] [2021-12-18 14:59:10,449 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-18 14:59:10,478 INFO L203 MainTranslator]: Completed pre-run [2021-12-18 14:59:10,816 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i[487146,487159] [2021-12-18 14:59:10,817 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i[487315,487328] [2021-12-18 14:59:10,817 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i[487482,487495] [2021-12-18 14:59:10,818 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i[487650,487663] [2021-12-18 14:59:10,825 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-18 14:59:11,023 INFO L208 MainTranslator]: Completed translation [2021-12-18 14:59:11,024 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:59:11 WrapperNode [2021-12-18 14:59:11,024 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-18 14:59:11,025 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-18 14:59:11,025 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-18 14:59:11,025 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-18 14:59:11,030 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:59:11" (1/1) ... [2021-12-18 14:59:11,146 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:59:11" (1/1) ... [2021-12-18 14:59:11,349 INFO L137 Inliner]: procedures = 676, calls = 4210, calls flagged for inlining = 325, calls inlined = 302, statements flattened = 10119 [2021-12-18 14:59:11,350 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-18 14:59:11,350 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-18 14:59:11,351 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-18 14:59:11,351 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-18 14:59:11,357 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:59:11" (1/1) ... [2021-12-18 14:59:11,357 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:59:11" (1/1) ... [2021-12-18 14:59:11,393 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:59:11" (1/1) ... [2021-12-18 14:59:11,394 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:59:11" (1/1) ... [2021-12-18 14:59:11,556 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:59:11" (1/1) ... [2021-12-18 14:59:11,572 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:59:11" (1/1) ... [2021-12-18 14:59:11,597 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:59:11" (1/1) ... [2021-12-18 14:59:11,638 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-18 14:59:11,639 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-18 14:59:11,639 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-18 14:59:11,641 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-18 14:59:11,642 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:59:11" (1/1) ... [2021-12-18 14:59:11,647 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-18 14:59:11,653 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 14:59:11,663 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-18 14:59:11,670 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-18 14:59:11,697 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2021-12-18 14:59:11,698 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2021-12-18 14:59:11,698 INFO L130 BoogieDeclarations]: Found specification of procedure cas_phy_read [2021-12-18 14:59:11,698 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_phy_read [2021-12-18 14:59:11,698 INFO L130 BoogieDeclarations]: Found specification of procedure cas_pcs_link_check [2021-12-18 14:59:11,698 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_pcs_link_check [2021-12-18 14:59:11,698 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_121 [2021-12-18 14:59:11,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_121 [2021-12-18 14:59:11,699 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-12-18 14:59:11,699 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-12-18 14:59:11,699 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-18 14:59:11,699 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-18 14:59:11,699 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2021-12-18 14:59:11,699 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2021-12-18 14:59:11,699 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_page [2021-12-18 14:59:11,699 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_page [2021-12-18 14:59:11,700 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-18 14:59:11,700 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-18 14:59:11,700 INFO L130 BoogieDeclarations]: Found specification of procedure cas_mii_link_check [2021-12-18 14:59:11,700 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_mii_link_check [2021-12-18 14:59:11,700 INFO L130 BoogieDeclarations]: Found specification of procedure cas_calc_tabort [2021-12-18 14:59:11,700 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_calc_tabort [2021-12-18 14:59:11,700 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_word [2021-12-18 14:59:11,700 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_word [2021-12-18 14:59:11,700 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_timer_instance_3 [2021-12-18 14:59:11,701 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_timer_instance_3 [2021-12-18 14:59:11,701 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_sync_single_for_cpu [2021-12-18 14:59:11,701 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_sync_single_for_cpu [2021-12-18 14:59:11,701 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-12-18 14:59:11,701 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-12-18 14:59:11,701 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_147 [2021-12-18 14:59:11,702 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_147 [2021-12-18 14:59:11,702 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_page [2021-12-18 14:59:11,702 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_page [2021-12-18 14:59:11,702 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-12-18 14:59:11,702 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-12-18 14:59:11,702 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2021-12-18 14:59:11,702 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2021-12-18 14:59:11,703 INFO L130 BoogieDeclarations]: Found specification of procedure cas_lock_tx [2021-12-18 14:59:11,703 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_lock_tx [2021-12-18 14:59:11,703 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2021-12-18 14:59:11,703 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2021-12-18 14:59:11,703 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-18 14:59:11,703 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-18 14:59:11,703 INFO L130 BoogieDeclarations]: Found specification of procedure cas_disable_irq [2021-12-18 14:59:11,704 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_disable_irq [2021-12-18 14:59:11,704 INFO L130 BoogieDeclarations]: Found specification of procedure cas_free_rxds [2021-12-18 14:59:11,704 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_free_rxds [2021-12-18 14:59:11,704 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_page [2021-12-18 14:59:11,704 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_page [2021-12-18 14:59:11,705 INFO L130 BoogieDeclarations]: Found specification of procedure cas_open [2021-12-18 14:59:11,705 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_open [2021-12-18 14:59:11,705 INFO L130 BoogieDeclarations]: Found specification of procedure cas_interrupt [2021-12-18 14:59:11,706 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_interrupt [2021-12-18 14:59:11,706 INFO L130 BoogieDeclarations]: Found specification of procedure cas_tx_tiny_free [2021-12-18 14:59:11,706 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_tx_tiny_free [2021-12-18 14:59:11,706 INFO L130 BoogieDeclarations]: Found specification of procedure PageTail [2021-12-18 14:59:11,706 INFO L138 BoogieDeclarations]: Found implementation of procedure PageTail [2021-12-18 14:59:11,707 INFO L130 BoogieDeclarations]: Found specification of procedure tx_tiny_map [2021-12-18 14:59:11,707 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_tiny_map [2021-12-18 14:59:11,707 INFO L130 BoogieDeclarations]: Found specification of procedure cas_phy_init [2021-12-18 14:59:11,707 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_phy_init [2021-12-18 14:59:11,707 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_pages [2021-12-18 14:59:11,707 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_pages [2021-12-18 14:59:11,707 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size_set [2021-12-18 14:59:11,708 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size_set [2021-12-18 14:59:11,708 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-12-18 14:59:11,708 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-12-18 14:59:11,708 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-12-18 14:59:11,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-12-18 14:59:11,708 INFO L130 BoogieDeclarations]: Found specification of procedure cas_enable_irq [2021-12-18 14:59:11,708 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_enable_irq [2021-12-18 14:59:11,709 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-12-18 14:59:11,709 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-12-18 14:59:11,709 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2021-12-18 14:59:11,709 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2021-12-18 14:59:11,709 INFO L130 BoogieDeclarations]: Found specification of procedure cas_page_dequeue [2021-12-18 14:59:11,709 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_page_dequeue [2021-12-18 14:59:11,709 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2021-12-18 14:59:11,709 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2021-12-18 14:59:11,710 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-12-18 14:59:11,710 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-12-18 14:59:11,710 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-12-18 14:59:11,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-12-18 14:59:11,710 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-18 14:59:11,711 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-18 14:59:11,711 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2021-12-18 14:59:11,711 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2021-12-18 14:59:11,711 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-18 14:59:11,711 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_108 [2021-12-18 14:59:11,712 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_108 [2021-12-18 14:59:11,712 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_word [2021-12-18 14:59:11,712 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_word [2021-12-18 14:59:11,712 INFO L130 BoogieDeclarations]: Found specification of procedure cas_set_multicast [2021-12-18 14:59:11,712 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_set_multicast [2021-12-18 14:59:11,712 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2021-12-18 14:59:11,712 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2021-12-18 14:59:11,712 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2021-12-18 14:59:11,712 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2021-12-18 14:59:11,713 INFO L130 BoogieDeclarations]: Found specification of procedure cas_spare_free [2021-12-18 14:59:11,713 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_spare_free [2021-12-18 14:59:11,713 INFO L130 BoogieDeclarations]: Found specification of procedure cas_tx_timeout [2021-12-18 14:59:11,713 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_tx_timeout [2021-12-18 14:59:11,713 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-12-18 14:59:11,713 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-12-18 14:59:11,713 INFO L130 BoogieDeclarations]: Found specification of procedure cas_read_pcs_link_mode [2021-12-18 14:59:11,713 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_read_pcs_link_mode [2021-12-18 14:59:11,714 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-12-18 14:59:11,714 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-12-18 14:59:11,714 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-18 14:59:11,714 INFO L130 BoogieDeclarations]: Found specification of procedure cas_close [2021-12-18 14:59:11,715 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_close [2021-12-18 14:59:11,715 INFO L130 BoogieDeclarations]: Found specification of procedure cas_page_swap [2021-12-18 14:59:11,717 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_page_swap [2021-12-18 14:59:11,717 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-12-18 14:59:11,717 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-12-18 14:59:11,717 INFO L130 BoogieDeclarations]: Found specification of procedure cas_netpoll [2021-12-18 14:59:11,718 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_netpoll [2021-12-18 14:59:11,718 INFO L130 BoogieDeclarations]: Found specification of procedure cas_hard_reset [2021-12-18 14:59:11,718 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_hard_reset [2021-12-18 14:59:11,718 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-12-18 14:59:11,719 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-12-18 14:59:11,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-18 14:59:11,723 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-12-18 14:59:11,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-12-18 14:59:11,723 INFO L130 BoogieDeclarations]: Found specification of procedure cas_rxc_init [2021-12-18 14:59:11,723 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_rxc_init [2021-12-18 14:59:11,723 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-18 14:59:11,723 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-18 14:59:11,724 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-18 14:59:11,724 INFO L130 BoogieDeclarations]: Found specification of procedure cas_clear_mac_err [2021-12-18 14:59:11,724 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_clear_mac_err [2021-12-18 14:59:11,724 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-12-18 14:59:11,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-12-18 14:59:11,724 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-12-18 14:59:11,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-12-18 14:59:11,724 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-12-18 14:59:11,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-12-18 14:59:11,724 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2021-12-18 14:59:11,725 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2021-12-18 14:59:11,725 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_instance_callback_3_2 [2021-12-18 14:59:11,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_instance_callback_3_2 [2021-12-18 14:59:11,725 INFO L130 BoogieDeclarations]: Found specification of procedure cas_remove_one [2021-12-18 14:59:11,725 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_remove_one [2021-12-18 14:59:11,725 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_NOT_ARG_SIGN [2021-12-18 14:59:11,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_NOT_ARG_SIGN [2021-12-18 14:59:11,725 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-12-18 14:59:11,725 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-12-18 14:59:11,726 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-12-18 14:59:11,726 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-12-18 14:59:11,726 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-12-18 14:59:11,726 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-12-18 14:59:11,726 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_dequeue [2021-12-18 14:59:11,726 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_dequeue [2021-12-18 14:59:11,726 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-18 14:59:11,726 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2021-12-18 14:59:11,726 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2021-12-18 14:59:11,726 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-18 14:59:11,727 INFO L130 BoogieDeclarations]: Found specification of procedure list_splice_init [2021-12-18 14:59:11,727 INFO L138 BoogieDeclarations]: Found implementation of procedure list_splice_init [2021-12-18 14:59:11,727 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-12-18 14:59:11,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-12-18 14:59:11,727 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-12-18 14:59:11,727 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-12-18 14:59:11,727 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-18 14:59:11,727 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-18 14:59:11,727 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-18 14:59:11,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-18 14:59:11,728 INFO L130 BoogieDeclarations]: Found specification of procedure cas_set_link_modes [2021-12-18 14:59:11,728 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_set_link_modes [2021-12-18 14:59:11,728 INFO L130 BoogieDeclarations]: Found specification of procedure cas_link_timer [2021-12-18 14:59:11,728 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_link_timer [2021-12-18 14:59:11,728 INFO L130 BoogieDeclarations]: Found specification of procedure cas_read_mii_link_mode [2021-12-18 14:59:11,728 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_read_mii_link_mode [2021-12-18 14:59:11,728 INFO L130 BoogieDeclarations]: Found specification of procedure __list_splice [2021-12-18 14:59:11,728 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_splice [2021-12-18 14:59:11,728 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-12-18 14:59:11,729 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-12-18 14:59:11,729 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-12-18 14:59:11,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-12-18 14:59:11,729 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2021-12-18 14:59:11,729 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2021-12-18 14:59:11,729 INFO L130 BoogieDeclarations]: Found specification of procedure kmap_atomic [2021-12-18 14:59:11,730 INFO L138 BoogieDeclarations]: Found implementation of procedure kmap_atomic [2021-12-18 14:59:11,730 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2021-12-18 14:59:11,730 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2021-12-18 14:59:11,730 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-18 14:59:11,730 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-18 14:59:11,730 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-12-18 14:59:11,730 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-12-18 14:59:11,730 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-12-18 14:59:11,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-12-18 14:59:11,730 INFO L130 BoogieDeclarations]: Found specification of procedure csum_unfold [2021-12-18 14:59:11,731 INFO L138 BoogieDeclarations]: Found implementation of procedure csum_unfold [2021-12-18 14:59:11,731 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2021-12-18 14:59:11,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2021-12-18 14:59:11,731 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-12-18 14:59:11,731 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-12-18 14:59:11,731 INFO L130 BoogieDeclarations]: Found specification of procedure cas_entropy_gather [2021-12-18 14:59:11,731 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_entropy_gather [2021-12-18 14:59:11,731 INFO L130 BoogieDeclarations]: Found specification of procedure cas_resume [2021-12-18 14:59:11,731 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_resume [2021-12-18 14:59:11,731 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-18 14:59:11,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-18 14:59:11,732 INFO L130 BoogieDeclarations]: Found specification of procedure cas_page_alloc [2021-12-18 14:59:11,732 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_page_alloc [2021-12-18 14:59:11,732 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-18 14:59:11,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-18 14:59:11,732 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-18 14:59:11,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-18 14:59:11,732 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-12-18 14:59:11,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-12-18 14:59:11,732 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-12-18 14:59:11,733 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-12-18 14:59:11,733 INFO L130 BoogieDeclarations]: Found specification of procedure cas_mif_poll [2021-12-18 14:59:11,733 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_mif_poll [2021-12-18 14:59:11,733 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-12-18 14:59:11,733 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-12-18 14:59:11,733 INFO L130 BoogieDeclarations]: Found specification of procedure cas_unlock_tx [2021-12-18 14:59:11,733 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_unlock_tx [2021-12-18 14:59:11,733 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-18 14:59:11,733 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-18 14:59:11,733 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_133 [2021-12-18 14:59:11,733 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_133 [2021-12-18 14:59:11,734 INFO L130 BoogieDeclarations]: Found specification of procedure list_splice [2021-12-18 14:59:11,734 INFO L138 BoogieDeclarations]: Found implementation of procedure list_splice [2021-12-18 14:59:11,734 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_135 [2021-12-18 14:59:11,734 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_135 [2021-12-18 14:59:11,734 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2021-12-18 14:59:11,734 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2021-12-18 14:59:11,734 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_sub [2021-12-18 14:59:11,734 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_sub [2021-12-18 14:59:11,734 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2021-12-18 14:59:11,734 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2021-12-18 14:59:11,735 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-18 14:59:11,735 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-18 14:59:11,735 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-12-18 14:59:11,735 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-12-18 14:59:11,735 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2021-12-18 14:59:11,736 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2021-12-18 14:59:11,738 INFO L130 BoogieDeclarations]: Found specification of procedure tx_tiny_buf [2021-12-18 14:59:11,738 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_tiny_buf [2021-12-18 14:59:11,738 INFO L130 BoogieDeclarations]: Found specification of procedure cas_mac_reset [2021-12-18 14:59:11,738 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_mac_reset [2021-12-18 14:59:11,738 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_cas [2021-12-18 14:59:11,738 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_cas [2021-12-18 14:59:11,738 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-18 14:59:11,738 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-12-18 14:59:11,739 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-12-18 14:59:11,739 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_frag_set_page [2021-12-18 14:59:11,739 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_frag_set_page [2021-12-18 14:59:11,740 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-18 14:59:11,740 INFO L130 BoogieDeclarations]: Found specification of procedure cas_get_regs_len [2021-12-18 14:59:11,740 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_get_regs_len [2021-12-18 14:59:11,740 INFO L130 BoogieDeclarations]: Found specification of procedure cas_reset [2021-12-18 14:59:11,740 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_reset [2021-12-18 14:59:11,740 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dispatch_instance_register_8_2 [2021-12-18 14:59:11,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dispatch_instance_register_8_2 [2021-12-18 14:59:11,740 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_NOT_ARG_SIGN [2021-12-18 14:59:11,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_NOT_ARG_SIGN [2021-12-18 14:59:11,740 INFO L130 BoogieDeclarations]: Found specification of procedure __free_pages [2021-12-18 14:59:11,741 INFO L138 BoogieDeclarations]: Found implementation of procedure __free_pages [2021-12-18 14:59:11,741 INFO L130 BoogieDeclarations]: Found specification of procedure cas_post_page [2021-12-18 14:59:11,741 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_post_page [2021-12-18 14:59:11,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-18 14:59:11,741 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_byte [2021-12-18 14:59:11,741 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_byte [2021-12-18 14:59:11,741 INFO L130 BoogieDeclarations]: Found specification of procedure cas_nway_reset [2021-12-18 14:59:11,741 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_nway_reset [2021-12-18 14:59:11,741 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-12-18 14:59:11,741 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-12-18 14:59:11,742 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-12-18 14:59:11,742 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-12-18 14:59:11,742 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-12-18 14:59:11,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-12-18 14:59:11,742 INFO L130 BoogieDeclarations]: Found specification of procedure cas_setup_multicast [2021-12-18 14:59:11,742 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_setup_multicast [2021-12-18 14:59:11,742 INFO L130 BoogieDeclarations]: Found specification of procedure cas_phy_powerdown [2021-12-18 14:59:11,742 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_phy_powerdown [2021-12-18 14:59:11,742 INFO L130 BoogieDeclarations]: Found specification of procedure cas_post_rxds_ringN [2021-12-18 14:59:11,742 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_post_rxds_ringN [2021-12-18 14:59:11,742 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2021-12-18 14:59:11,743 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2021-12-18 14:59:11,743 INFO L130 BoogieDeclarations]: Found specification of procedure cas_vpd_match [2021-12-18 14:59:11,743 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_vpd_match [2021-12-18 14:59:11,743 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_83 [2021-12-18 14:59:11,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_83 [2021-12-18 14:59:11,743 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_81 [2021-12-18 14:59:11,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_81 [2021-12-18 14:59:11,743 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2021-12-18 14:59:11,743 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2021-12-18 14:59:11,743 INFO L130 BoogieDeclarations]: Found specification of procedure cpumask_weight [2021-12-18 14:59:11,743 INFO L138 BoogieDeclarations]: Found implementation of procedure cpumask_weight [2021-12-18 14:59:11,744 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-12-18 14:59:11,744 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-12-18 14:59:11,744 INFO L130 BoogieDeclarations]: Found specification of procedure page_count [2021-12-18 14:59:11,744 INFO L138 BoogieDeclarations]: Found implementation of procedure page_count [2021-12-18 14:59:11,744 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-12-18 14:59:11,744 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-12-18 14:59:11,744 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_77 [2021-12-18 14:59:11,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_77 [2021-12-18 14:59:11,744 INFO L130 BoogieDeclarations]: Found specification of procedure cas_shutdown [2021-12-18 14:59:11,744 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_shutdown [2021-12-18 14:59:11,744 INFO L130 BoogieDeclarations]: Found specification of procedure cas_begin_auto_negotiation [2021-12-18 14:59:11,745 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_begin_auto_negotiation [2021-12-18 14:59:11,745 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_page [2021-12-18 14:59:11,745 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_page [2021-12-18 14:59:11,745 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-12-18 14:59:11,745 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-12-18 14:59:11,745 INFO L130 BoogieDeclarations]: Found specification of procedure cas_write_txd [2021-12-18 14:59:11,745 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_write_txd [2021-12-18 14:59:11,745 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-18 14:59:11,745 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-18 14:59:11,745 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_frag_ref [2021-12-18 14:59:11,745 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_frag_ref [2021-12-18 14:59:11,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-18 14:59:11,746 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-18 14:59:11,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-18 14:59:11,746 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_82 [2021-12-18 14:59:11,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_82 [2021-12-18 14:59:11,746 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_84 [2021-12-18 14:59:11,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_84 [2021-12-18 14:59:11,746 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_79 [2021-12-18 14:59:11,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_79 [2021-12-18 14:59:11,746 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2021-12-18 14:59:11,747 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2021-12-18 14:59:11,747 INFO L130 BoogieDeclarations]: Found specification of procedure cas_init_hw [2021-12-18 14:59:11,747 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_init_hw [2021-12-18 14:59:11,747 INFO L130 BoogieDeclarations]: Found specification of procedure cas_clean_rings [2021-12-18 14:59:11,747 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_clean_rings [2021-12-18 14:59:11,747 INFO L130 BoogieDeclarations]: Found specification of procedure cas_page_free [2021-12-18 14:59:11,747 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_page_free [2021-12-18 14:59:11,747 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2021-12-18 14:59:11,747 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2021-12-18 14:59:11,747 INFO L130 BoogieDeclarations]: Found specification of procedure cas_phy_write [2021-12-18 14:59:11,747 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_phy_write [2021-12-18 14:59:11,748 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-12-18 14:59:11,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-12-18 14:59:11,748 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2021-12-18 14:59:11,748 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2021-12-18 14:59:11,748 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2021-12-18 14:59:11,748 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2021-12-18 14:59:11,748 INFO L130 BoogieDeclarations]: Found specification of procedure cas_spare_recover [2021-12-18 14:59:11,748 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_spare_recover [2021-12-18 14:59:11,748 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed [2021-12-18 14:59:11,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed [2021-12-18 14:59:11,749 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-12-18 14:59:11,749 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-12-18 14:59:11,749 INFO L130 BoogieDeclarations]: Found specification of procedure cas_get_stats [2021-12-18 14:59:11,749 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_get_stats [2021-12-18 14:59:11,749 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-12-18 14:59:11,749 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-12-18 14:59:11,749 INFO L130 BoogieDeclarations]: Found specification of procedure __kunmap_atomic [2021-12-18 14:59:11,749 INFO L138 BoogieDeclarations]: Found implementation of procedure __kunmap_atomic [2021-12-18 14:59:11,749 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-18 14:59:11,749 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-12-18 14:59:11,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-12-18 14:59:11,750 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_sync_single_for_device [2021-12-18 14:59:11,750 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_sync_single_for_device [2021-12-18 14:59:11,750 INFO L130 BoogieDeclarations]: Found specification of procedure readb [2021-12-18 14:59:11,750 INFO L138 BoogieDeclarations]: Found implementation of procedure readb [2021-12-18 14:59:11,750 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_107 [2021-12-18 14:59:11,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_107 [2021-12-18 14:59:12,804 INFO L236 CfgBuilder]: Building ICFG [2021-12-18 14:59:12,809 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-18 14:59:13,089 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-18 15:02:04,840 INFO L277 CfgBuilder]: Performing block encoding [2021-12-18 15:02:04,869 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-18 15:02:04,869 INFO L301 CfgBuilder]: Removed 3 assume(true) statements. [2021-12-18 15:02:04,875 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 03:02:04 BoogieIcfgContainer [2021-12-18 15:02:04,875 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-18 15:02:04,877 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-18 15:02:04,877 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-18 15:02:04,879 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-18 15:02:04,879 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.12 02:59:06" (1/3) ... [2021-12-18 15:02:04,880 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21a2b31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 03:02:04, skipping insertion in model container [2021-12-18 15:02:04,880 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:59:11" (2/3) ... [2021-12-18 15:02:04,880 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21a2b31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 03:02:04, skipping insertion in model container [2021-12-18 15:02:04,880 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 03:02:04" (3/3) ... [2021-12-18 15:02:04,881 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i [2021-12-18 15:02:04,885 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-18 15:02:04,885 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-12-18 15:02:04,924 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-18 15:02:04,928 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-18 15:02:04,929 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-12-18 15:02:04,977 INFO L276 IsEmpty]: Start isEmpty. Operand has 3611 states, 2370 states have (on average 1.2831223628691983) internal successors, (3041), 2451 states have internal predecessors, (3041), 1066 states have call successors, (1066), 173 states have call predecessors, (1066), 172 states have return successors, (1062), 1048 states have call predecessors, (1062), 1062 states have call successors, (1062) [2021-12-18 15:02:04,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-12-18 15:02:04,981 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 15:02:04,981 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 15:02:04,982 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 15:02:04,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 15:02:04,985 INFO L85 PathProgramCache]: Analyzing trace with hash 488379236, now seen corresponding path program 1 times [2021-12-18 15:02:04,991 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 15:02:04,991 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964545857] [2021-12-18 15:02:04,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:02:04,992 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 15:02:05,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:05,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:02:05,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:05,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-18 15:02:05,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:05,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-18 15:02:05,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:05,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:02:05,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:06,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 15:02:06,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:06,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-18 15:02:06,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:06,036 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-12-18 15:02:06,038 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 15:02:06,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [964545857] [2021-12-18 15:02:06,039 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [964545857] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 15:02:06,039 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 15:02:06,040 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 15:02:06,041 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052428611] [2021-12-18 15:02:06,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 15:02:06,044 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 15:02:06,045 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 15:02:06,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 15:02:06,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-18 15:02:06,076 INFO L87 Difference]: Start difference. First operand has 3611 states, 2370 states have (on average 1.2831223628691983) internal successors, (3041), 2451 states have internal predecessors, (3041), 1066 states have call successors, (1066), 173 states have call predecessors, (1066), 172 states have return successors, (1062), 1048 states have call predecessors, (1062), 1062 states have call successors, (1062) Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-12-18 15:02:06,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 15:02:06,782 INFO L93 Difference]: Finished difference Result 10186 states and 15111 transitions. [2021-12-18 15:02:06,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 15:02:06,785 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 50 [2021-12-18 15:02:06,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 15:02:06,855 INFO L225 Difference]: With dead ends: 10186 [2021-12-18 15:02:06,855 INFO L226 Difference]: Without dead ends: 6583 [2021-12-18 15:02:06,888 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-18 15:02:06,891 INFO L933 BasicCegarLoop]: 6156 mSDtfsCounter, 4881 mSDsluCounter, 16829 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4900 SdHoareTripleChecker+Valid, 22985 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-18 15:02:06,891 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4900 Valid, 22985 Invalid, 31 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-18 15:02:06,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6583 states. [2021-12-18 15:02:07,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6583 to 6575. [2021-12-18 15:02:07,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6575 states, 4309 states have (on average 1.2703643536783475) internal successors, (5474), 4464 states have internal predecessors, (5474), 1936 states have call successors, (1936), 336 states have call predecessors, (1936), 327 states have return successors, (2014), 1881 states have call predecessors, (2014), 1930 states have call successors, (2014) [2021-12-18 15:02:07,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6575 states to 6575 states and 9424 transitions. [2021-12-18 15:02:07,315 INFO L78 Accepts]: Start accepts. Automaton has 6575 states and 9424 transitions. Word has length 50 [2021-12-18 15:02:07,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 15:02:07,315 INFO L470 AbstractCegarLoop]: Abstraction has 6575 states and 9424 transitions. [2021-12-18 15:02:07,316 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-12-18 15:02:07,316 INFO L276 IsEmpty]: Start isEmpty. Operand 6575 states and 9424 transitions. [2021-12-18 15:02:07,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-12-18 15:02:07,318 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 15:02:07,318 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 15:02:07,318 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-18 15:02:07,318 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 15:02:07,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 15:02:07,319 INFO L85 PathProgramCache]: Analyzing trace with hash -1966173741, now seen corresponding path program 1 times [2021-12-18 15:02:07,319 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 15:02:07,320 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201964707] [2021-12-18 15:02:07,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:02:07,320 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 15:02:07,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:07,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:02:07,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:07,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-18 15:02:07,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:07,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-18 15:02:07,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:07,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:02:07,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:07,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 15:02:07,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:07,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-18 15:02:07,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:07,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-18 15:02:07,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:07,903 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-12-18 15:02:07,903 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 15:02:07,904 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201964707] [2021-12-18 15:02:07,904 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [201964707] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 15:02:07,904 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 15:02:07,904 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 15:02:07,904 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36945095] [2021-12-18 15:02:07,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 15:02:07,908 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 15:02:07,908 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 15:02:07,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 15:02:07,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-18 15:02:07,908 INFO L87 Difference]: Start difference. First operand 6575 states and 9424 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-12-18 15:02:08,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 15:02:08,293 INFO L93 Difference]: Finished difference Result 6585 states and 9433 transitions. [2021-12-18 15:02:08,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-18 15:02:08,294 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 55 [2021-12-18 15:02:08,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 15:02:08,330 INFO L225 Difference]: With dead ends: 6585 [2021-12-18 15:02:08,331 INFO L226 Difference]: Without dead ends: 6583 [2021-12-18 15:02:08,336 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-18 15:02:08,337 INFO L933 BasicCegarLoop]: 5099 mSDtfsCounter, 5062 mSDsluCounter, 10172 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5079 SdHoareTripleChecker+Valid, 15271 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-18 15:02:08,338 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5079 Valid, 15271 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-18 15:02:08,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6583 states. [2021-12-18 15:02:08,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6583 to 6583. [2021-12-18 15:02:08,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6583 states, 4315 states have (on average 1.2699884125144845) internal successors, (5480), 4470 states have internal predecessors, (5480), 1936 states have call successors, (1936), 338 states have call predecessors, (1936), 329 states have return successors, (2014), 1881 states have call predecessors, (2014), 1930 states have call successors, (2014) [2021-12-18 15:02:08,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6583 states to 6583 states and 9430 transitions. [2021-12-18 15:02:08,604 INFO L78 Accepts]: Start accepts. Automaton has 6583 states and 9430 transitions. Word has length 55 [2021-12-18 15:02:08,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 15:02:08,605 INFO L470 AbstractCegarLoop]: Abstraction has 6583 states and 9430 transitions. [2021-12-18 15:02:08,606 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-12-18 15:02:08,606 INFO L276 IsEmpty]: Start isEmpty. Operand 6583 states and 9430 transitions. [2021-12-18 15:02:08,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-12-18 15:02:08,611 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 15:02:08,612 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 15:02:08,612 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-18 15:02:08,612 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 15:02:08,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 15:02:08,612 INFO L85 PathProgramCache]: Analyzing trace with hash -1669212028, now seen corresponding path program 1 times [2021-12-18 15:02:08,613 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 15:02:08,613 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995259974] [2021-12-18 15:02:08,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:02:08,613 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 15:02:08,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:09,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:02:09,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:09,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-18 15:02:09,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:09,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-18 15:02:09,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:09,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:02:09,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:09,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 15:02:09,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:09,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-18 15:02:09,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:09,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-18 15:02:09,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:09,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-18 15:02:09,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:09,111 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-12-18 15:02:09,111 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 15:02:09,111 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995259974] [2021-12-18 15:02:09,111 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1995259974] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 15:02:09,111 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 15:02:09,111 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 15:02:09,112 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423331817] [2021-12-18 15:02:09,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 15:02:09,112 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 15:02:09,114 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 15:02:09,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 15:02:09,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-18 15:02:09,114 INFO L87 Difference]: Start difference. First operand 6583 states and 9430 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-12-18 15:02:09,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 15:02:09,460 INFO L93 Difference]: Finished difference Result 6593 states and 9439 transitions. [2021-12-18 15:02:09,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-18 15:02:09,461 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 60 [2021-12-18 15:02:09,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 15:02:09,492 INFO L225 Difference]: With dead ends: 6593 [2021-12-18 15:02:09,492 INFO L226 Difference]: Without dead ends: 6591 [2021-12-18 15:02:09,497 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-18 15:02:09,498 INFO L933 BasicCegarLoop]: 5099 mSDtfsCounter, 5062 mSDsluCounter, 10172 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5078 SdHoareTripleChecker+Valid, 15271 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-18 15:02:09,498 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5078 Valid, 15271 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-18 15:02:09,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6591 states. [2021-12-18 15:02:09,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6591 to 6591. [2021-12-18 15:02:09,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6591 states, 4321 states have (on average 1.269613515389956) internal successors, (5486), 4476 states have internal predecessors, (5486), 1936 states have call successors, (1936), 340 states have call predecessors, (1936), 331 states have return successors, (2014), 1881 states have call predecessors, (2014), 1930 states have call successors, (2014) [2021-12-18 15:02:09,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6591 states to 6591 states and 9436 transitions. [2021-12-18 15:02:09,787 INFO L78 Accepts]: Start accepts. Automaton has 6591 states and 9436 transitions. Word has length 60 [2021-12-18 15:02:09,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 15:02:09,787 INFO L470 AbstractCegarLoop]: Abstraction has 6591 states and 9436 transitions. [2021-12-18 15:02:09,787 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-12-18 15:02:09,788 INFO L276 IsEmpty]: Start isEmpty. Operand 6591 states and 9436 transitions. [2021-12-18 15:02:09,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-12-18 15:02:09,788 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 15:02:09,789 INFO L514 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 15:02:09,789 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-18 15:02:09,789 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 15:02:09,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 15:02:09,789 INFO L85 PathProgramCache]: Analyzing trace with hash 63716950, now seen corresponding path program 1 times [2021-12-18 15:02:09,790 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 15:02:09,790 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222061052] [2021-12-18 15:02:09,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:02:09,790 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 15:02:10,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:10,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:02:10,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:10,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-18 15:02:10,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:10,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-18 15:02:10,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:10,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:02:10,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:10,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 15:02:10,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:10,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-18 15:02:10,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:10,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-18 15:02:10,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:10,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 15:02:10,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:10,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-18 15:02:10,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:10,312 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-12-18 15:02:10,312 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 15:02:10,312 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222061052] [2021-12-18 15:02:10,312 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1222061052] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 15:02:10,312 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 15:02:10,312 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 15:02:10,313 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203004568] [2021-12-18 15:02:10,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 15:02:10,313 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 15:02:10,313 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 15:02:10,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 15:02:10,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-18 15:02:10,314 INFO L87 Difference]: Start difference. First operand 6591 states and 9436 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-12-18 15:02:10,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 15:02:10,661 INFO L93 Difference]: Finished difference Result 6601 states and 9445 transitions. [2021-12-18 15:02:10,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-18 15:02:10,661 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 72 [2021-12-18 15:02:10,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 15:02:10,692 INFO L225 Difference]: With dead ends: 6601 [2021-12-18 15:02:10,693 INFO L226 Difference]: Without dead ends: 6599 [2021-12-18 15:02:10,698 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-18 15:02:10,699 INFO L933 BasicCegarLoop]: 5099 mSDtfsCounter, 5055 mSDsluCounter, 10172 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5070 SdHoareTripleChecker+Valid, 15271 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-18 15:02:10,699 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5070 Valid, 15271 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-18 15:02:10,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6599 states. [2021-12-18 15:02:10,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6599 to 6599. [2021-12-18 15:02:10,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6599 states, 4327 states have (on average 1.2692396579616363) internal successors, (5492), 4482 states have internal predecessors, (5492), 1936 states have call successors, (1936), 342 states have call predecessors, (1936), 333 states have return successors, (2014), 1881 states have call predecessors, (2014), 1930 states have call successors, (2014) [2021-12-18 15:02:10,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6599 states to 6599 states and 9442 transitions. [2021-12-18 15:02:10,923 INFO L78 Accepts]: Start accepts. Automaton has 6599 states and 9442 transitions. Word has length 72 [2021-12-18 15:02:10,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 15:02:10,924 INFO L470 AbstractCegarLoop]: Abstraction has 6599 states and 9442 transitions. [2021-12-18 15:02:10,924 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-12-18 15:02:10,924 INFO L276 IsEmpty]: Start isEmpty. Operand 6599 states and 9442 transitions. [2021-12-18 15:02:10,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-12-18 15:02:10,925 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 15:02:10,925 INFO L514 BasicCegarLoop]: trace histogram [5, 4, 4, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 15:02:10,926 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-18 15:02:10,926 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 15:02:10,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 15:02:10,926 INFO L85 PathProgramCache]: Analyzing trace with hash -1640143452, now seen corresponding path program 1 times [2021-12-18 15:02:10,927 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 15:02:10,927 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199176989] [2021-12-18 15:02:10,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:02:10,927 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 15:02:11,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:11,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:02:11,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:11,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-18 15:02:11,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:11,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-18 15:02:11,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:11,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:02:11,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:11,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 15:02:11,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:11,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-18 15:02:11,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:11,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-18 15:02:11,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:11,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-18 15:02:11,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:11,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-18 15:02:11,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:11,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-18 15:02:11,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:11,393 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2021-12-18 15:02:11,394 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 15:02:11,394 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [199176989] [2021-12-18 15:02:11,394 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [199176989] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 15:02:11,394 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 15:02:11,394 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 15:02:11,394 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988940780] [2021-12-18 15:02:11,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 15:02:11,396 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 15:02:11,396 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 15:02:11,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 15:02:11,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-18 15:02:11,397 INFO L87 Difference]: Start difference. First operand 6599 states and 9442 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-12-18 15:02:11,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 15:02:11,741 INFO L93 Difference]: Finished difference Result 6609 states and 9451 transitions. [2021-12-18 15:02:11,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-18 15:02:11,741 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 70 [2021-12-18 15:02:11,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 15:02:11,767 INFO L225 Difference]: With dead ends: 6609 [2021-12-18 15:02:11,767 INFO L226 Difference]: Without dead ends: 6607 [2021-12-18 15:02:11,772 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-18 15:02:11,774 INFO L933 BasicCegarLoop]: 5099 mSDtfsCounter, 5062 mSDsluCounter, 10172 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5076 SdHoareTripleChecker+Valid, 15271 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-18 15:02:11,775 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5076 Valid, 15271 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-18 15:02:11,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6607 states. [2021-12-18 15:02:12,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6607 to 6607. [2021-12-18 15:02:12,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6607 states, 4333 states have (on average 1.2688668359104547) internal successors, (5498), 4488 states have internal predecessors, (5498), 1936 states have call successors, (1936), 344 states have call predecessors, (1936), 335 states have return successors, (2014), 1881 states have call predecessors, (2014), 1930 states have call successors, (2014) [2021-12-18 15:02:12,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6607 states to 6607 states and 9448 transitions. [2021-12-18 15:02:12,058 INFO L78 Accepts]: Start accepts. Automaton has 6607 states and 9448 transitions. Word has length 70 [2021-12-18 15:02:12,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 15:02:12,058 INFO L470 AbstractCegarLoop]: Abstraction has 6607 states and 9448 transitions. [2021-12-18 15:02:12,058 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-12-18 15:02:12,059 INFO L276 IsEmpty]: Start isEmpty. Operand 6607 states and 9448 transitions. [2021-12-18 15:02:12,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-12-18 15:02:12,059 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 15:02:12,059 INFO L514 BasicCegarLoop]: trace histogram [6, 5, 5, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 15:02:12,060 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-18 15:02:12,060 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 15:02:12,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 15:02:12,060 INFO L85 PathProgramCache]: Analyzing trace with hash -245692781, now seen corresponding path program 1 times [2021-12-18 15:02:12,060 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 15:02:12,061 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746449291] [2021-12-18 15:02:12,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:02:12,061 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 15:02:12,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:12,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:02:12,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:12,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-18 15:02:12,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:12,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-18 15:02:12,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:12,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:02:12,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:12,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 15:02:12,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:12,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-18 15:02:12,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:12,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-18 15:02:12,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:12,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-18 15:02:12,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:12,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-18 15:02:12,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:12,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-18 15:02:12,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:12,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 15:02:12,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:12,510 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-12-18 15:02:12,511 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 15:02:12,511 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746449291] [2021-12-18 15:02:12,511 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [746449291] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 15:02:12,511 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 15:02:12,512 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 15:02:12,512 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491492370] [2021-12-18 15:02:12,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 15:02:12,512 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 15:02:12,512 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 15:02:12,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 15:02:12,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-18 15:02:12,513 INFO L87 Difference]: Start difference. First operand 6607 states and 9448 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-12-18 15:02:12,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 15:02:12,841 INFO L93 Difference]: Finished difference Result 6617 states and 9457 transitions. [2021-12-18 15:02:12,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-18 15:02:12,842 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 75 [2021-12-18 15:02:12,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 15:02:12,865 INFO L225 Difference]: With dead ends: 6617 [2021-12-18 15:02:12,866 INFO L226 Difference]: Without dead ends: 6615 [2021-12-18 15:02:12,869 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-18 15:02:12,870 INFO L933 BasicCegarLoop]: 5099 mSDtfsCounter, 5062 mSDsluCounter, 10172 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5075 SdHoareTripleChecker+Valid, 15271 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-18 15:02:12,870 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5075 Valid, 15271 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-18 15:02:12,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6615 states. [2021-12-18 15:02:13,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6615 to 6615. [2021-12-18 15:02:13,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6615 states, 4339 states have (on average 1.2684950449412307) internal successors, (5504), 4494 states have internal predecessors, (5504), 1936 states have call successors, (1936), 346 states have call predecessors, (1936), 337 states have return successors, (2014), 1881 states have call predecessors, (2014), 1930 states have call successors, (2014) [2021-12-18 15:02:13,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6615 states to 6615 states and 9454 transitions. [2021-12-18 15:02:13,096 INFO L78 Accepts]: Start accepts. Automaton has 6615 states and 9454 transitions. Word has length 75 [2021-12-18 15:02:13,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 15:02:13,096 INFO L470 AbstractCegarLoop]: Abstraction has 6615 states and 9454 transitions. [2021-12-18 15:02:13,096 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-12-18 15:02:13,096 INFO L276 IsEmpty]: Start isEmpty. Operand 6615 states and 9454 transitions. [2021-12-18 15:02:13,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-12-18 15:02:13,097 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 15:02:13,097 INFO L514 BasicCegarLoop]: trace histogram [7, 6, 6, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 15:02:13,097 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-18 15:02:13,098 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 15:02:13,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 15:02:13,098 INFO L85 PathProgramCache]: Analyzing trace with hash -340966847, now seen corresponding path program 1 times [2021-12-18 15:02:13,098 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 15:02:13,098 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685662332] [2021-12-18 15:02:13,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:02:13,099 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 15:02:13,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:13,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:02:13,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:13,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-18 15:02:13,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:13,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-18 15:02:13,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:13,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:02:13,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:13,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 15:02:13,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:13,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-18 15:02:13,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:13,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-18 15:02:13,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:13,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 15:02:13,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:13,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-18 15:02:13,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:13,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-18 15:02:13,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:13,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-18 15:02:13,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:13,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-18 15:02:13,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:13,536 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2021-12-18 15:02:13,537 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 15:02:13,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685662332] [2021-12-18 15:02:13,537 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [685662332] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 15:02:13,537 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 15:02:13,537 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 15:02:13,537 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249434881] [2021-12-18 15:02:13,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 15:02:13,538 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 15:02:13,538 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 15:02:13,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 15:02:13,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-18 15:02:13,539 INFO L87 Difference]: Start difference. First operand 6615 states and 9454 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-18 15:02:13,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 15:02:13,938 INFO L93 Difference]: Finished difference Result 6625 states and 9463 transitions. [2021-12-18 15:02:13,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-18 15:02:13,938 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 87 [2021-12-18 15:02:13,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 15:02:13,961 INFO L225 Difference]: With dead ends: 6625 [2021-12-18 15:02:13,961 INFO L226 Difference]: Without dead ends: 6623 [2021-12-18 15:02:13,965 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-18 15:02:13,965 INFO L933 BasicCegarLoop]: 5099 mSDtfsCounter, 5055 mSDsluCounter, 10172 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5067 SdHoareTripleChecker+Valid, 15271 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-18 15:02:13,965 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5067 Valid, 15271 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-18 15:02:13,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6623 states. [2021-12-18 15:02:14,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6623 to 6623. [2021-12-18 15:02:14,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6623 states, 4345 states have (on average 1.2681242807825086) internal successors, (5510), 4500 states have internal predecessors, (5510), 1936 states have call successors, (1936), 348 states have call predecessors, (1936), 339 states have return successors, (2014), 1881 states have call predecessors, (2014), 1930 states have call successors, (2014) [2021-12-18 15:02:14,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6623 states to 6623 states and 9460 transitions. [2021-12-18 15:02:14,182 INFO L78 Accepts]: Start accepts. Automaton has 6623 states and 9460 transitions. Word has length 87 [2021-12-18 15:02:14,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 15:02:14,182 INFO L470 AbstractCegarLoop]: Abstraction has 6623 states and 9460 transitions. [2021-12-18 15:02:14,182 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-18 15:02:14,183 INFO L276 IsEmpty]: Start isEmpty. Operand 6623 states and 9460 transitions. [2021-12-18 15:02:14,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2021-12-18 15:02:14,183 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 15:02:14,184 INFO L514 BasicCegarLoop]: trace histogram [8, 7, 7, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 15:02:14,184 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-18 15:02:14,184 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 15:02:14,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 15:02:14,184 INFO L85 PathProgramCache]: Analyzing trace with hash 664253334, now seen corresponding path program 1 times [2021-12-18 15:02:14,184 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 15:02:14,185 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062933891] [2021-12-18 15:02:14,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:02:14,185 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 15:02:14,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:14,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:02:14,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:14,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-18 15:02:14,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:14,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-18 15:02:14,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:14,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:02:14,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:14,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 15:02:14,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:14,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-18 15:02:14,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:14,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-18 15:02:14,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:14,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 15:02:14,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:14,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-18 15:02:14,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:14,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-18 15:02:14,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:14,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-18 15:02:14,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:14,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-18 15:02:14,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:14,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-18 15:02:14,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:14,628 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2021-12-18 15:02:14,629 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 15:02:14,629 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062933891] [2021-12-18 15:02:14,629 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1062933891] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 15:02:14,629 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 15:02:14,629 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 15:02:14,629 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806920335] [2021-12-18 15:02:14,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 15:02:14,630 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 15:02:14,630 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 15:02:14,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 15:02:14,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-18 15:02:14,630 INFO L87 Difference]: Start difference. First operand 6623 states and 9460 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-18 15:02:15,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 15:02:15,026 INFO L93 Difference]: Finished difference Result 9275 states and 13163 transitions. [2021-12-18 15:02:15,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-18 15:02:15,027 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 92 [2021-12-18 15:02:15,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 15:02:15,063 INFO L225 Difference]: With dead ends: 9275 [2021-12-18 15:02:15,064 INFO L226 Difference]: Without dead ends: 9273 [2021-12-18 15:02:15,072 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-18 15:02:15,072 INFO L933 BasicCegarLoop]: 6814 mSDtfsCounter, 3792 mSDsluCounter, 16746 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3803 SdHoareTripleChecker+Valid, 23560 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-18 15:02:15,073 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3803 Valid, 23560 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-18 15:02:15,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9273 states. [2021-12-18 15:02:15,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9273 to 9265. [2021-12-18 15:02:15,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9265 states, 6053 states have (on average 1.2651577730051213) internal successors, (7658), 6245 states have internal predecessors, (7658), 2677 states have call successors, (2677), 549 states have call predecessors, (2677), 532 states have return successors, (2819), 2608 states have call predecessors, (2819), 2671 states have call successors, (2819) [2021-12-18 15:02:15,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9265 states to 9265 states and 13154 transitions. [2021-12-18 15:02:15,511 INFO L78 Accepts]: Start accepts. Automaton has 9265 states and 13154 transitions. Word has length 92 [2021-12-18 15:02:15,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 15:02:15,511 INFO L470 AbstractCegarLoop]: Abstraction has 9265 states and 13154 transitions. [2021-12-18 15:02:15,511 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-18 15:02:15,511 INFO L276 IsEmpty]: Start isEmpty. Operand 9265 states and 13154 transitions. [2021-12-18 15:02:15,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-12-18 15:02:15,512 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 15:02:15,512 INFO L514 BasicCegarLoop]: trace histogram [9, 8, 8, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 15:02:15,513 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-18 15:02:15,513 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 15:02:15,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 15:02:15,513 INFO L85 PathProgramCache]: Analyzing trace with hash 850716449, now seen corresponding path program 1 times [2021-12-18 15:02:15,513 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 15:02:15,514 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472625175] [2021-12-18 15:02:15,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:02:15,514 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 15:02:15,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:15,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:02:15,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:15,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-18 15:02:15,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:15,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-18 15:02:15,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:15,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:02:15,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:15,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 15:02:15,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:15,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-18 15:02:15,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:15,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-18 15:02:15,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:15,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 15:02:15,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:15,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-18 15:02:15,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:15,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-18 15:02:15,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:15,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-18 15:02:15,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:15,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-18 15:02:15,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:15,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-18 15:02:15,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:15,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-18 15:02:15,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:15,979 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2021-12-18 15:02:15,979 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 15:02:15,979 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472625175] [2021-12-18 15:02:15,980 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1472625175] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 15:02:15,980 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 15:02:15,980 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 15:02:15,980 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327525343] [2021-12-18 15:02:15,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 15:02:15,981 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 15:02:15,981 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 15:02:15,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 15:02:15,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-18 15:02:15,982 INFO L87 Difference]: Start difference. First operand 9265 states and 13154 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-18 15:02:16,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 15:02:16,432 INFO L93 Difference]: Finished difference Result 9275 states and 13163 transitions. [2021-12-18 15:02:16,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-18 15:02:16,433 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 97 [2021-12-18 15:02:16,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 15:02:16,468 INFO L225 Difference]: With dead ends: 9275 [2021-12-18 15:02:16,468 INFO L226 Difference]: Without dead ends: 9273 [2021-12-18 15:02:16,475 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-18 15:02:16,477 INFO L933 BasicCegarLoop]: 5099 mSDtfsCounter, 5055 mSDsluCounter, 10172 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5065 SdHoareTripleChecker+Valid, 15271 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-18 15:02:16,477 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5065 Valid, 15271 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-18 15:02:16,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9273 states. [2021-12-18 15:02:16,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9273 to 9273. [2021-12-18 15:02:16,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9273 states, 6059 states have (on average 1.2648951972272653) internal successors, (7664), 6251 states have internal predecessors, (7664), 2677 states have call successors, (2677), 551 states have call predecessors, (2677), 534 states have return successors, (2819), 2608 states have call predecessors, (2819), 2671 states have call successors, (2819) [2021-12-18 15:02:16,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9273 states to 9273 states and 13160 transitions. [2021-12-18 15:02:16,850 INFO L78 Accepts]: Start accepts. Automaton has 9273 states and 13160 transitions. Word has length 97 [2021-12-18 15:02:16,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 15:02:16,851 INFO L470 AbstractCegarLoop]: Abstraction has 9273 states and 13160 transitions. [2021-12-18 15:02:16,851 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-18 15:02:16,851 INFO L276 IsEmpty]: Start isEmpty. Operand 9273 states and 13160 transitions. [2021-12-18 15:02:16,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-12-18 15:02:16,853 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 15:02:16,853 INFO L514 BasicCegarLoop]: trace histogram [10, 9, 9, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 15:02:16,853 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-18 15:02:16,853 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 15:02:16,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 15:02:16,853 INFO L85 PathProgramCache]: Analyzing trace with hash 686578515, now seen corresponding path program 1 times [2021-12-18 15:02:16,854 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 15:02:16,854 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682413804] [2021-12-18 15:02:16,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:02:16,854 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 15:02:17,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:17,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:02:17,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:17,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-18 15:02:17,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:17,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-18 15:02:17,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:17,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:02:17,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:17,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 15:02:17,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:17,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-18 15:02:17,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:17,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-18 15:02:17,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:17,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-18 15:02:17,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:17,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-18 15:02:17,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:17,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-18 15:02:17,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:17,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 15:02:17,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:17,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-18 15:02:17,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:17,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-18 15:02:17,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:17,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-18 15:02:17,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:17,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-18 15:02:17,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:17,282 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2021-12-18 15:02:17,282 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 15:02:17,282 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682413804] [2021-12-18 15:02:17,282 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [682413804] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 15:02:17,282 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 15:02:17,282 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 15:02:17,283 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741121787] [2021-12-18 15:02:17,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 15:02:17,283 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 15:02:17,283 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 15:02:17,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 15:02:17,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-18 15:02:17,284 INFO L87 Difference]: Start difference. First operand 9273 states and 13160 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-12-18 15:02:17,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 15:02:17,745 INFO L93 Difference]: Finished difference Result 9283 states and 13169 transitions. [2021-12-18 15:02:17,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-18 15:02:17,746 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 95 [2021-12-18 15:02:17,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 15:02:17,772 INFO L225 Difference]: With dead ends: 9283 [2021-12-18 15:02:17,772 INFO L226 Difference]: Without dead ends: 9281 [2021-12-18 15:02:17,775 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-18 15:02:17,775 INFO L933 BasicCegarLoop]: 5099 mSDtfsCounter, 5062 mSDsluCounter, 10172 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5071 SdHoareTripleChecker+Valid, 15271 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-18 15:02:17,776 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5071 Valid, 15271 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-18 15:02:17,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9281 states. [2021-12-18 15:02:18,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9281 to 9281. [2021-12-18 15:02:18,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9281 states, 6065 states have (on average 1.2646331409727947) internal successors, (7670), 6257 states have internal predecessors, (7670), 2677 states have call successors, (2677), 553 states have call predecessors, (2677), 536 states have return successors, (2819), 2608 states have call predecessors, (2819), 2671 states have call successors, (2819) [2021-12-18 15:02:18,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9281 states to 9281 states and 13166 transitions. [2021-12-18 15:02:18,056 INFO L78 Accepts]: Start accepts. Automaton has 9281 states and 13166 transitions. Word has length 95 [2021-12-18 15:02:18,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 15:02:18,057 INFO L470 AbstractCegarLoop]: Abstraction has 9281 states and 13166 transitions. [2021-12-18 15:02:18,057 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-12-18 15:02:18,057 INFO L276 IsEmpty]: Start isEmpty. Operand 9281 states and 13166 transitions. [2021-12-18 15:02:18,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-12-18 15:02:18,060 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 15:02:18,060 INFO L514 BasicCegarLoop]: trace histogram [11, 10, 10, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 15:02:18,061 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-18 15:02:18,061 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 15:02:18,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 15:02:18,061 INFO L85 PathProgramCache]: Analyzing trace with hash -1978817535, now seen corresponding path program 1 times [2021-12-18 15:02:18,061 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 15:02:18,062 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445943332] [2021-12-18 15:02:18,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:02:18,062 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 15:02:18,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:18,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:02:18,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:18,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-18 15:02:18,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:18,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-18 15:02:18,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:18,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:02:18,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:18,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 15:02:18,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:18,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-18 15:02:18,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:18,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-18 15:02:18,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:18,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 15:02:18,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:18,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-18 15:02:18,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:18,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-18 15:02:18,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:18,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-18 15:02:18,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:18,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-18 15:02:18,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:18,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-18 15:02:18,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:18,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-18 15:02:18,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:18,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-18 15:02:18,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:18,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-18 15:02:18,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:18,508 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2021-12-18 15:02:18,508 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 15:02:18,508 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445943332] [2021-12-18 15:02:18,508 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1445943332] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 15:02:18,508 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 15:02:18,508 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 15:02:18,508 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811879885] [2021-12-18 15:02:18,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 15:02:18,509 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 15:02:18,509 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 15:02:18,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 15:02:18,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-18 15:02:18,510 INFO L87 Difference]: Start difference. First operand 9281 states and 13166 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-18 15:02:18,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 15:02:18,927 INFO L93 Difference]: Finished difference Result 9291 states and 13175 transitions. [2021-12-18 15:02:18,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-18 15:02:18,927 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 107 [2021-12-18 15:02:18,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 15:02:18,962 INFO L225 Difference]: With dead ends: 9291 [2021-12-18 15:02:18,963 INFO L226 Difference]: Without dead ends: 9289 [2021-12-18 15:02:18,969 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-18 15:02:18,969 INFO L933 BasicCegarLoop]: 5099 mSDtfsCounter, 5055 mSDsluCounter, 10172 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5063 SdHoareTripleChecker+Valid, 15271 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-18 15:02:18,970 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5063 Valid, 15271 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-18 15:02:18,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9289 states. [2021-12-18 15:02:19,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9289 to 9289. [2021-12-18 15:02:19,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9289 states, 6071 states have (on average 1.2643716027013672) internal successors, (7676), 6263 states have internal predecessors, (7676), 2677 states have call successors, (2677), 555 states have call predecessors, (2677), 538 states have return successors, (2819), 2608 states have call predecessors, (2819), 2671 states have call successors, (2819) [2021-12-18 15:02:19,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9289 states to 9289 states and 13172 transitions. [2021-12-18 15:02:19,305 INFO L78 Accepts]: Start accepts. Automaton has 9289 states and 13172 transitions. Word has length 107 [2021-12-18 15:02:19,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 15:02:19,306 INFO L470 AbstractCegarLoop]: Abstraction has 9289 states and 13172 transitions. [2021-12-18 15:02:19,306 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-18 15:02:19,306 INFO L276 IsEmpty]: Start isEmpty. Operand 9289 states and 13172 transitions. [2021-12-18 15:02:19,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-12-18 15:02:19,307 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 15:02:19,307 INFO L514 BasicCegarLoop]: trace histogram [12, 11, 11, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 15:02:19,308 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-18 15:02:19,308 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 15:02:19,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 15:02:19,308 INFO L85 PathProgramCache]: Analyzing trace with hash 1398982870, now seen corresponding path program 1 times [2021-12-18 15:02:19,308 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 15:02:19,309 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648985744] [2021-12-18 15:02:19,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:02:19,309 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 15:02:19,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:19,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:02:19,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:19,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-18 15:02:19,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:19,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-18 15:02:19,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:19,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:02:19,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:19,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 15:02:19,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:19,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-18 15:02:19,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:19,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-18 15:02:19,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:19,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 15:02:19,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:19,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-18 15:02:19,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:19,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-18 15:02:19,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:19,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-18 15:02:19,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:19,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-18 15:02:19,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:19,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-18 15:02:19,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:19,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-18 15:02:19,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:19,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-18 15:02:19,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:19,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-18 15:02:19,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:19,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-18 15:02:19,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:19,835 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-12-18 15:02:19,835 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 15:02:19,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648985744] [2021-12-18 15:02:19,835 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [648985744] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 15:02:19,835 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 15:02:19,835 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 15:02:19,835 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203546751] [2021-12-18 15:02:19,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 15:02:19,836 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 15:02:19,836 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 15:02:19,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 15:02:19,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-18 15:02:19,836 INFO L87 Difference]: Start difference. First operand 9289 states and 13172 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-12-18 15:02:20,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 15:02:20,233 INFO L93 Difference]: Finished difference Result 9299 states and 13181 transitions. [2021-12-18 15:02:20,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-18 15:02:20,233 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 112 [2021-12-18 15:02:20,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 15:02:20,267 INFO L225 Difference]: With dead ends: 9299 [2021-12-18 15:02:20,267 INFO L226 Difference]: Without dead ends: 9297 [2021-12-18 15:02:20,273 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-18 15:02:20,273 INFO L933 BasicCegarLoop]: 5099 mSDtfsCounter, 5055 mSDsluCounter, 10172 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5062 SdHoareTripleChecker+Valid, 15271 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-18 15:02:20,273 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5062 Valid, 15271 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-18 15:02:20,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9297 states. [2021-12-18 15:02:20,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9297 to 9297. [2021-12-18 15:02:20,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9297 states, 6077 states have (on average 1.264110580878723) internal successors, (7682), 6269 states have internal predecessors, (7682), 2677 states have call successors, (2677), 557 states have call predecessors, (2677), 540 states have return successors, (2819), 2608 states have call predecessors, (2819), 2671 states have call successors, (2819) [2021-12-18 15:02:20,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9297 states to 9297 states and 13178 transitions. [2021-12-18 15:02:20,604 INFO L78 Accepts]: Start accepts. Automaton has 9297 states and 13178 transitions. Word has length 112 [2021-12-18 15:02:20,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 15:02:20,605 INFO L470 AbstractCegarLoop]: Abstraction has 9297 states and 13178 transitions. [2021-12-18 15:02:20,605 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-12-18 15:02:20,605 INFO L276 IsEmpty]: Start isEmpty. Operand 9297 states and 13178 transitions. [2021-12-18 15:02:20,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-12-18 15:02:20,606 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 15:02:20,606 INFO L514 BasicCegarLoop]: trace histogram [13, 12, 12, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 15:02:20,606 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-18 15:02:20,606 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 15:02:20,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 15:02:20,606 INFO L85 PathProgramCache]: Analyzing trace with hash -134387164, now seen corresponding path program 1 times [2021-12-18 15:02:20,606 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 15:02:20,606 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811554202] [2021-12-18 15:02:20,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:02:20,607 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 15:02:20,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:21,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:02:21,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:21,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-18 15:02:21,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:21,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-18 15:02:21,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:21,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:02:21,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:21,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 15:02:21,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:21,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-18 15:02:21,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:21,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-18 15:02:21,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:21,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-18 15:02:21,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:21,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-18 15:02:21,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:21,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-18 15:02:21,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:21,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 15:02:21,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:21,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-18 15:02:21,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:21,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-18 15:02:21,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:21,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-18 15:02:21,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:21,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-18 15:02:21,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:21,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 15:02:21,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:21,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-18 15:02:21,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:21,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-18 15:02:21,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:21,109 INFO L134 CoverageAnalysis]: Checked inductivity of 303 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2021-12-18 15:02:21,109 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 15:02:21,109 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811554202] [2021-12-18 15:02:21,109 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1811554202] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 15:02:21,109 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 15:02:21,109 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 15:02:21,109 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936805588] [2021-12-18 15:02:21,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 15:02:21,110 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 15:02:21,110 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 15:02:21,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 15:02:21,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-18 15:02:21,111 INFO L87 Difference]: Start difference. First operand 9297 states and 13178 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-18 15:02:21,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 15:02:21,506 INFO L93 Difference]: Finished difference Result 9459 states and 13328 transitions. [2021-12-18 15:02:21,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-18 15:02:21,507 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (20), 3 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 110 [2021-12-18 15:02:21,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 15:02:21,539 INFO L225 Difference]: With dead ends: 9459 [2021-12-18 15:02:21,539 INFO L226 Difference]: Without dead ends: 9457 [2021-12-18 15:02:21,545 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-18 15:02:21,546 INFO L933 BasicCegarLoop]: 5123 mSDtfsCounter, 5025 mSDsluCounter, 10297 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5031 SdHoareTripleChecker+Valid, 15420 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-18 15:02:21,546 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5031 Valid, 15420 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-18 15:02:21,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9457 states. [2021-12-18 15:02:21,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9457 to 9455. [2021-12-18 15:02:21,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9455 states, 6185 states have (on average 1.2611156022635408) internal successors, (7800), 6379 states have internal predecessors, (7800), 2691 states have call successors, (2691), 593 states have call predecessors, (2691), 576 states have return successors, (2833), 2622 states have call predecessors, (2833), 2685 states have call successors, (2833) [2021-12-18 15:02:21,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9455 states to 9455 states and 13324 transitions. [2021-12-18 15:02:21,994 INFO L78 Accepts]: Start accepts. Automaton has 9455 states and 13324 transitions. Word has length 110 [2021-12-18 15:02:21,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 15:02:21,995 INFO L470 AbstractCegarLoop]: Abstraction has 9455 states and 13324 transitions. [2021-12-18 15:02:21,995 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-18 15:02:21,995 INFO L276 IsEmpty]: Start isEmpty. Operand 9455 states and 13324 transitions. [2021-12-18 15:02:21,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2021-12-18 15:02:21,996 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 15:02:21,996 INFO L514 BasicCegarLoop]: trace histogram [14, 13, 13, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 15:02:21,996 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-18 15:02:21,997 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 15:02:21,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 15:02:21,997 INFO L85 PathProgramCache]: Analyzing trace with hash -252498058, now seen corresponding path program 1 times [2021-12-18 15:02:21,997 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 15:02:21,997 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274939184] [2021-12-18 15:02:21,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:02:21,997 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 15:02:22,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:22,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:02:22,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:22,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-18 15:02:22,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:22,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-18 15:02:22,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:22,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:02:22,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:22,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 15:02:22,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:22,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-18 15:02:22,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:22,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-18 15:02:22,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:22,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 15:02:22,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:22,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-18 15:02:22,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:22,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-18 15:02:22,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:22,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-18 15:02:22,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:22,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-18 15:02:22,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:22,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-18 15:02:22,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:22,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-18 15:02:22,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:22,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-18 15:02:22,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:22,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-18 15:02:22,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:22,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-18 15:02:22,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:22,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-18 15:02:22,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:22,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 15:02:22,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:22,466 INFO L134 CoverageAnalysis]: Checked inductivity of 353 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 327 trivial. 0 not checked. [2021-12-18 15:02:22,466 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 15:02:22,466 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274939184] [2021-12-18 15:02:22,466 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1274939184] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 15:02:22,466 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 15:02:22,467 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 15:02:22,467 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126339061] [2021-12-18 15:02:22,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 15:02:22,467 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 15:02:22,467 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 15:02:22,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 15:02:22,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-18 15:02:22,468 INFO L87 Difference]: Start difference. First operand 9455 states and 13324 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-12-18 15:02:22,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 15:02:22,863 INFO L93 Difference]: Finished difference Result 9561 states and 13406 transitions. [2021-12-18 15:02:22,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-18 15:02:22,863 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 122 [2021-12-18 15:02:22,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 15:02:22,893 INFO L225 Difference]: With dead ends: 9561 [2021-12-18 15:02:22,893 INFO L226 Difference]: Without dead ends: 9559 [2021-12-18 15:02:22,899 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-18 15:02:22,899 INFO L933 BasicCegarLoop]: 5111 mSDtfsCounter, 4997 mSDsluCounter, 10296 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5002 SdHoareTripleChecker+Valid, 15407 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-18 15:02:22,900 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5002 Valid, 15407 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-18 15:02:22,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9559 states. [2021-12-18 15:02:23,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9559 to 9557. [2021-12-18 15:02:23,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9557 states, 6259 states have (on average 1.258667518772967) internal successors, (7878), 6453 states have internal predecessors, (7878), 2691 states have call successors, (2691), 621 states have call predecessors, (2691), 604 states have return successors, (2833), 2622 states have call predecessors, (2833), 2685 states have call successors, (2833) [2021-12-18 15:02:23,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9557 states to 9557 states and 13402 transitions. [2021-12-18 15:02:23,241 INFO L78 Accepts]: Start accepts. Automaton has 9557 states and 13402 transitions. Word has length 122 [2021-12-18 15:02:23,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 15:02:23,242 INFO L470 AbstractCegarLoop]: Abstraction has 9557 states and 13402 transitions. [2021-12-18 15:02:23,242 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-12-18 15:02:23,242 INFO L276 IsEmpty]: Start isEmpty. Operand 9557 states and 13402 transitions. [2021-12-18 15:02:23,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-12-18 15:02:23,243 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 15:02:23,243 INFO L514 BasicCegarLoop]: trace histogram [15, 14, 14, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 15:02:23,243 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-18 15:02:23,243 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 15:02:23,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 15:02:23,244 INFO L85 PathProgramCache]: Analyzing trace with hash 1616895812, now seen corresponding path program 1 times [2021-12-18 15:02:23,244 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 15:02:23,244 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984191213] [2021-12-18 15:02:23,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:02:23,244 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 15:02:23,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:23,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:02:23,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:23,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-18 15:02:23,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:23,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-18 15:02:23,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:23,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:02:23,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:23,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 15:02:23,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:23,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-18 15:02:23,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:23,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-18 15:02:23,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:23,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-18 15:02:23,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:23,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-18 15:02:23,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:23,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-18 15:02:23,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:23,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 15:02:23,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:23,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-18 15:02:23,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:23,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-18 15:02:23,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:23,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-18 15:02:23,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:23,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-18 15:02:23,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:23,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 15:02:23,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:23,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-18 15:02:23,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:23,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-18 15:02:23,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:23,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-18 15:02:23,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:23,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-18 15:02:23,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:23,774 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 379 trivial. 0 not checked. [2021-12-18 15:02:23,775 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 15:02:23,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984191213] [2021-12-18 15:02:23,775 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [984191213] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 15:02:23,775 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 15:02:23,775 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 15:02:23,775 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039629128] [2021-12-18 15:02:23,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 15:02:23,776 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 15:02:23,776 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 15:02:23,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 15:02:23,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-18 15:02:23,777 INFO L87 Difference]: Start difference. First operand 9557 states and 13402 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-12-18 15:02:24,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 15:02:24,271 INFO L93 Difference]: Finished difference Result 9567 states and 13411 transitions. [2021-12-18 15:02:24,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-18 15:02:24,271 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 120 [2021-12-18 15:02:24,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 15:02:24,300 INFO L225 Difference]: With dead ends: 9567 [2021-12-18 15:02:24,300 INFO L226 Difference]: Without dead ends: 9565 [2021-12-18 15:02:24,305 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-18 15:02:24,306 INFO L933 BasicCegarLoop]: 5099 mSDtfsCounter, 5062 mSDsluCounter, 10172 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5066 SdHoareTripleChecker+Valid, 15271 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-18 15:02:24,306 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5066 Valid, 15271 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-18 15:02:24,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9565 states. [2021-12-18 15:02:24,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9565 to 9565. [2021-12-18 15:02:24,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9565 states, 6265 states have (on average 1.2584197924980047) internal successors, (7884), 6459 states have internal predecessors, (7884), 2691 states have call successors, (2691), 623 states have call predecessors, (2691), 606 states have return successors, (2833), 2622 states have call predecessors, (2833), 2685 states have call successors, (2833) [2021-12-18 15:02:24,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9565 states to 9565 states and 13408 transitions. [2021-12-18 15:02:24,675 INFO L78 Accepts]: Start accepts. Automaton has 9565 states and 13408 transitions. Word has length 120 [2021-12-18 15:02:24,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 15:02:24,675 INFO L470 AbstractCegarLoop]: Abstraction has 9565 states and 13408 transitions. [2021-12-18 15:02:24,676 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-12-18 15:02:24,676 INFO L276 IsEmpty]: Start isEmpty. Operand 9565 states and 13408 transitions. [2021-12-18 15:02:24,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2021-12-18 15:02:24,677 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 15:02:24,677 INFO L514 BasicCegarLoop]: trace histogram [16, 15, 15, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 15:02:24,677 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-12-18 15:02:24,677 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 15:02:24,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 15:02:24,677 INFO L85 PathProgramCache]: Analyzing trace with hash -1056539021, now seen corresponding path program 1 times [2021-12-18 15:02:24,678 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 15:02:24,678 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3344458] [2021-12-18 15:02:24,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:02:24,678 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 15:02:24,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:25,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:02:25,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:25,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-18 15:02:25,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:25,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-18 15:02:25,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:25,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:02:25,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:25,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 15:02:25,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:25,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-18 15:02:25,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:25,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-18 15:02:25,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:25,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-18 15:02:25,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:25,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-18 15:02:25,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:25,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-18 15:02:25,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:25,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 15:02:25,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:25,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-18 15:02:25,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:25,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-18 15:02:25,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:25,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-18 15:02:25,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:25,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-18 15:02:25,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:25,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 15:02:25,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:25,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-18 15:02:25,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:25,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-18 15:02:25,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:25,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-18 15:02:25,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:25,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-18 15:02:25,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:25,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-18 15:02:25,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:25,119 INFO L134 CoverageAnalysis]: Checked inductivity of 465 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2021-12-18 15:02:25,119 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 15:02:25,120 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3344458] [2021-12-18 15:02:25,121 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [3344458] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 15:02:25,121 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 15:02:25,121 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 15:02:25,121 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373108177] [2021-12-18 15:02:25,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 15:02:25,121 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 15:02:25,121 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 15:02:25,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 15:02:25,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-18 15:02:25,122 INFO L87 Difference]: Start difference. First operand 9565 states and 13408 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-18 15:02:25,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 15:02:25,552 INFO L93 Difference]: Finished difference Result 9575 states and 13417 transitions. [2021-12-18 15:02:25,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-18 15:02:25,552 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 125 [2021-12-18 15:02:25,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 15:02:25,578 INFO L225 Difference]: With dead ends: 9575 [2021-12-18 15:02:25,578 INFO L226 Difference]: Without dead ends: 9573 [2021-12-18 15:02:25,583 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-18 15:02:25,583 INFO L933 BasicCegarLoop]: 5099 mSDtfsCounter, 5062 mSDsluCounter, 10172 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5065 SdHoareTripleChecker+Valid, 15271 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-18 15:02:25,583 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5065 Valid, 15271 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-18 15:02:25,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9573 states. [2021-12-18 15:02:25,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9573 to 9573. [2021-12-18 15:02:25,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9573 states, 6271 states have (on average 1.2581725402647106) internal successors, (7890), 6465 states have internal predecessors, (7890), 2691 states have call successors, (2691), 625 states have call predecessors, (2691), 608 states have return successors, (2833), 2622 states have call predecessors, (2833), 2685 states have call successors, (2833) [2021-12-18 15:02:25,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9573 states to 9573 states and 13414 transitions. [2021-12-18 15:02:25,999 INFO L78 Accepts]: Start accepts. Automaton has 9573 states and 13414 transitions. Word has length 125 [2021-12-18 15:02:25,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 15:02:26,000 INFO L470 AbstractCegarLoop]: Abstraction has 9573 states and 13414 transitions. [2021-12-18 15:02:26,000 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-18 15:02:26,000 INFO L276 IsEmpty]: Start isEmpty. Operand 9573 states and 13414 transitions. [2021-12-18 15:02:26,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2021-12-18 15:02:26,004 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 15:02:26,004 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 15:02:26,004 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-12-18 15:02:26,004 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 15:02:26,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 15:02:26,004 INFO L85 PathProgramCache]: Analyzing trace with hash -1287571720, now seen corresponding path program 1 times [2021-12-18 15:02:26,005 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 15:02:26,005 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765628658] [2021-12-18 15:02:26,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:02:26,005 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 15:02:26,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:26,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:02:26,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:26,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-18 15:02:26,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:26,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 15:02:26,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:26,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:02:26,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:26,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:02:26,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:26,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 15:02:26,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:26,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-18 15:02:26,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:26,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:02:26,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:26,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:02:26,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:26,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 15:02:26,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:26,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-18 15:02:26,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:26,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:02:26,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:26,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:02:26,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:26,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 15:02:26,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:26,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 15:02:26,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:26,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-18 15:02:26,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:26,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:02:26,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:26,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-18 15:02:26,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:26,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 15:02:26,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:26,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-18 15:02:26,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:26,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-12-18 15:02:26,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:02:26,705 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2021-12-18 15:02:26,706 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 15:02:26,706 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765628658] [2021-12-18 15:02:26,706 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [765628658] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 15:02:26,706 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 15:02:26,706 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 15:02:26,706 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332318243] [2021-12-18 15:02:26,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 15:02:26,707 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 15:02:26,707 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 15:02:26,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 15:02:26,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 15:02:26,708 INFO L87 Difference]: Start difference. First operand 9573 states and 13414 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-12-18 15:02:28,770 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:03:02,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 15:03:02,112 INFO L93 Difference]: Finished difference Result 10682 states and 15231 transitions. [2021-12-18 15:03:02,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-18 15:03:02,112 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 147 [2021-12-18 15:03:02,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 15:03:02,147 INFO L225 Difference]: With dead ends: 10682 [2021-12-18 15:03:02,147 INFO L226 Difference]: Without dead ends: 10680 [2021-12-18 15:03:02,153 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 45 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-12-18 15:03:02,153 INFO L933 BasicCegarLoop]: 6172 mSDtfsCounter, 4720 mSDsluCounter, 14046 mSDsCounter, 0 mSdLazyCounter, 7121 mSolverCounterSat, 2524 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5510 SdHoareTripleChecker+Valid, 20218 SdHoareTripleChecker+Invalid, 9646 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 2524 IncrementalHoareTripleChecker+Valid, 7121 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 34.2s IncrementalHoareTripleChecker+Time [2021-12-18 15:03:02,154 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5510 Valid, 20218 Invalid, 9646 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [2524 Valid, 7121 Invalid, 1 Unknown, 0 Unchecked, 34.2s Time] [2021-12-18 15:03:02,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10680 states. [2021-12-18 15:03:02,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10680 to 9928. [2021-12-18 15:03:02,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9928 states, 6517 states have (on average 1.2602424428417984) internal successors, (8213), 6726 states have internal predecessors, (8213), 2765 states have call successors, (2765), 627 states have call predecessors, (2765), 643 states have return successors, (2997), 2713 states have call predecessors, (2997), 2759 states have call successors, (2997) [2021-12-18 15:03:02,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9928 states to 9928 states and 13975 transitions. [2021-12-18 15:03:02,729 INFO L78 Accepts]: Start accepts. Automaton has 9928 states and 13975 transitions. Word has length 147 [2021-12-18 15:03:02,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 15:03:02,730 INFO L470 AbstractCegarLoop]: Abstraction has 9928 states and 13975 transitions. [2021-12-18 15:03:02,731 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-12-18 15:03:02,731 INFO L276 IsEmpty]: Start isEmpty. Operand 9928 states and 13975 transitions. [2021-12-18 15:03:02,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2021-12-18 15:03:02,733 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 15:03:02,733 INFO L514 BasicCegarLoop]: trace histogram [17, 16, 16, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 15:03:02,733 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-12-18 15:03:02,733 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 15:03:02,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 15:03:02,734 INFO L85 PathProgramCache]: Analyzing trace with hash 2063342692, now seen corresponding path program 1 times [2021-12-18 15:03:02,734 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 15:03:02,734 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900421997] [2021-12-18 15:03:02,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:03:02,734 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 15:03:02,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:03:03,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:03:03,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:03:03,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-18 15:03:03,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:03:03,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-18 15:03:03,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:03:03,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:03:03,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:03:03,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 15:03:03,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:03:03,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-18 15:03:03,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:03:03,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-18 15:03:03,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:03:03,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-18 15:03:03,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:03:03,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-18 15:03:03,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:03:03,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-18 15:03:03,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:03:03,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 15:03:03,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:03:03,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-18 15:03:03,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:03:03,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-18 15:03:03,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:03:03,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-18 15:03:03,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:03:03,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-18 15:03:03,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:03:03,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 15:03:03,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:03:03,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-18 15:03:03,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:03:03,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-18 15:03:03,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:03:03,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-18 15:03:03,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:03:03,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-18 15:03:03,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:03:03,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-18 15:03:03,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:03:03,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-18 15:03:03,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:03:03,188 INFO L134 CoverageAnalysis]: Checked inductivity of 527 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 495 trivial. 0 not checked. [2021-12-18 15:03:03,188 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 15:03:03,188 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900421997] [2021-12-18 15:03:03,188 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1900421997] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 15:03:03,188 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 15:03:03,189 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 15:03:03,189 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584463339] [2021-12-18 15:03:03,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 15:03:03,190 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 15:03:03,190 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 15:03:03,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 15:03:03,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-18 15:03:03,190 INFO L87 Difference]: Start difference. First operand 9928 states and 13975 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-12-18 15:03:03,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 15:03:03,668 INFO L93 Difference]: Finished difference Result 9938 states and 13984 transitions. [2021-12-18 15:03:03,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-18 15:03:03,669 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 130 [2021-12-18 15:03:03,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 15:03:03,706 INFO L225 Difference]: With dead ends: 9938 [2021-12-18 15:03:03,706 INFO L226 Difference]: Without dead ends: 9936 [2021-12-18 15:03:03,713 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-18 15:03:03,714 INFO L933 BasicCegarLoop]: 5099 mSDtfsCounter, 5062 mSDsluCounter, 10172 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5064 SdHoareTripleChecker+Valid, 15271 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-18 15:03:03,714 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5064 Valid, 15271 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-18 15:03:03,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9936 states. [2021-12-18 15:03:04,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9936 to 9936. [2021-12-18 15:03:04,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9936 states, 6523 states have (on average 1.2600030660738923) internal successors, (8219), 6732 states have internal predecessors, (8219), 2765 states have call successors, (2765), 629 states have call predecessors, (2765), 645 states have return successors, (2997), 2713 states have call predecessors, (2997), 2759 states have call successors, (2997) [2021-12-18 15:03:04,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9936 states to 9936 states and 13981 transitions. [2021-12-18 15:03:04,095 INFO L78 Accepts]: Start accepts. Automaton has 9936 states and 13981 transitions. Word has length 130 [2021-12-18 15:03:04,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 15:03:04,095 INFO L470 AbstractCegarLoop]: Abstraction has 9936 states and 13981 transitions. [2021-12-18 15:03:04,096 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-12-18 15:03:04,096 INFO L276 IsEmpty]: Start isEmpty. Operand 9936 states and 13981 transitions. [2021-12-18 15:03:04,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2021-12-18 15:03:04,097 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 15:03:04,097 INFO L514 BasicCegarLoop]: trace histogram [18, 17, 17, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 15:03:04,097 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-12-18 15:03:04,097 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 15:03:04,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 15:03:04,098 INFO L85 PathProgramCache]: Analyzing trace with hash 413119670, now seen corresponding path program 1 times [2021-12-18 15:03:04,098 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 15:03:04,098 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152990066] [2021-12-18 15:03:04,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:03:04,098 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 15:03:04,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:03:04,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:03:04,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:03:04,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-18 15:03:04,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:03:04,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-18 15:03:04,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:03:04,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:03:04,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:03:04,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 15:03:04,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:03:04,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-18 15:03:04,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:03:04,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-18 15:03:04,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:03:04,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 15:03:04,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:03:04,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-18 15:03:04,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:03:04,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-18 15:03:04,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:03:04,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-18 15:03:04,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:03:04,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-18 15:03:04,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:03:04,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-18 15:03:04,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:03:04,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-18 15:03:04,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:03:04,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-18 15:03:04,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:03:04,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-18 15:03:04,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:03:04,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-18 15:03:04,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:03:04,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-18 15:03:04,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:03:04,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 15:03:04,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:03:04,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-18 15:03:04,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:03:04,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-18 15:03:04,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:03:04,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-18 15:03:04,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:03:04,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-12-18 15:03:04,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:03:04,553 INFO L134 CoverageAnalysis]: Checked inductivity of 593 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 559 trivial. 0 not checked. [2021-12-18 15:03:04,553 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 15:03:04,553 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [152990066] [2021-12-18 15:03:04,553 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [152990066] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 15:03:04,553 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 15:03:04,553 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 15:03:04,554 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339693150] [2021-12-18 15:03:04,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 15:03:04,555 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 15:03:04,555 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 15:03:04,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 15:03:04,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-18 15:03:04,556 INFO L87 Difference]: Start difference. First operand 9936 states and 13981 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-12-18 15:03:05,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 15:03:05,131 INFO L93 Difference]: Finished difference Result 9988 states and 14025 transitions. [2021-12-18 15:03:05,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-18 15:03:05,132 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 142 [2021-12-18 15:03:05,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 15:03:05,162 INFO L225 Difference]: With dead ends: 9988 [2021-12-18 15:03:05,162 INFO L226 Difference]: Without dead ends: 9984 [2021-12-18 15:03:05,166 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-18 15:03:05,166 INFO L933 BasicCegarLoop]: 5099 mSDtfsCounter, 5010 mSDsluCounter, 10226 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5011 SdHoareTripleChecker+Valid, 15325 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-18 15:03:05,166 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5011 Valid, 15325 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-18 15:03:05,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9984 states. [2021-12-18 15:03:05,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9984 to 9982. [2021-12-18 15:03:05,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9982 states, 6558 states have (on average 1.2590728880756328) internal successors, (8257), 6766 states have internal predecessors, (8257), 2765 states have call successors, (2765), 641 states have call predecessors, (2765), 656 states have return successors, (2997), 2713 states have call predecessors, (2997), 2759 states have call successors, (2997) [2021-12-18 15:03:05,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9982 states to 9982 states and 14019 transitions. [2021-12-18 15:03:05,558 INFO L78 Accepts]: Start accepts. Automaton has 9982 states and 14019 transitions. Word has length 142 [2021-12-18 15:03:05,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 15:03:05,558 INFO L470 AbstractCegarLoop]: Abstraction has 9982 states and 14019 transitions. [2021-12-18 15:03:05,558 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-12-18 15:03:05,558 INFO L276 IsEmpty]: Start isEmpty. Operand 9982 states and 14019 transitions. [2021-12-18 15:03:05,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2021-12-18 15:03:05,560 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 15:03:05,560 INFO L514 BasicCegarLoop]: trace histogram [19, 18, 18, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 15:03:05,560 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-12-18 15:03:05,560 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 15:03:05,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 15:03:05,560 INFO L85 PathProgramCache]: Analyzing trace with hash 1077420420, now seen corresponding path program 1 times [2021-12-18 15:03:05,560 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 15:03:05,561 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367768902] [2021-12-18 15:03:05,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:03:05,561 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 15:03:05,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:03:05,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:03:05,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:03:05,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-18 15:03:05,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:03:05,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-18 15:03:05,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:03:05,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:03:05,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:03:05,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 15:03:05,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:03:05,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-18 15:03:05,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:03:05,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-18 15:03:05,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:03:05,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-18 15:03:05,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:03:05,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-18 15:03:05,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:03:05,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-18 15:03:05,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:03:05,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 15:03:05,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:03:05,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-18 15:03:05,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:03:05,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-18 15:03:05,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:03:05,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-18 15:03:05,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:03:05,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-18 15:03:06,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:03:06,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 15:03:06,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:03:06,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-18 15:03:06,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:03:06,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-18 15:03:06,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:03:06,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-18 15:03:06,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:03:06,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-18 15:03:06,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:03:06,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-18 15:03:06,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:03:06,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-18 15:03:06,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:03:06,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-18 15:03:06,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:03:06,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-18 15:03:06,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:03:06,032 INFO L134 CoverageAnalysis]: Checked inductivity of 663 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 627 trivial. 0 not checked. [2021-12-18 15:03:06,033 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 15:03:06,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367768902] [2021-12-18 15:03:06,033 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1367768902] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 15:03:06,033 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 15:03:06,033 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 15:03:06,033 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256930070] [2021-12-18 15:03:06,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 15:03:06,034 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 15:03:06,034 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 15:03:06,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 15:03:06,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-18 15:03:06,035 INFO L87 Difference]: Start difference. First operand 9982 states and 14019 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-12-18 15:03:06,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 15:03:06,523 INFO L93 Difference]: Finished difference Result 9988 states and 14024 transitions. [2021-12-18 15:03:06,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-18 15:03:06,523 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 140 [2021-12-18 15:03:06,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 15:03:06,555 INFO L225 Difference]: With dead ends: 9988 [2021-12-18 15:03:06,556 INFO L226 Difference]: Without dead ends: 9773 [2021-12-18 15:03:06,563 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-18 15:03:06,564 INFO L933 BasicCegarLoop]: 5100 mSDtfsCounter, 5062 mSDsluCounter, 10174 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5062 SdHoareTripleChecker+Valid, 15274 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-18 15:03:06,564 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5062 Valid, 15274 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-18 15:03:06,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9773 states. [2021-12-18 15:03:06,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9773 to 9773. [2021-12-18 15:03:06,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9773 states, 6431 states have (on average 1.263567096874514) internal successors, (8126), 6637 states have internal predecessors, (8126), 2719 states have call successors, (2719), 604 states have call predecessors, (2719), 620 states have return successors, (2954), 2670 states have call predecessors, (2954), 2716 states have call successors, (2954) [2021-12-18 15:03:07,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9773 states to 9773 states and 13799 transitions. [2021-12-18 15:03:07,033 INFO L78 Accepts]: Start accepts. Automaton has 9773 states and 13799 transitions. Word has length 140 [2021-12-18 15:03:07,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 15:03:07,033 INFO L470 AbstractCegarLoop]: Abstraction has 9773 states and 13799 transitions. [2021-12-18 15:03:07,033 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-12-18 15:03:07,033 INFO L276 IsEmpty]: Start isEmpty. Operand 9773 states and 13799 transitions. [2021-12-18 15:03:07,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2021-12-18 15:03:07,035 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 15:03:07,035 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 15:03:07,035 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-12-18 15:03:07,035 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 15:03:07,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 15:03:07,036 INFO L85 PathProgramCache]: Analyzing trace with hash 1142503990, now seen corresponding path program 1 times [2021-12-18 15:03:07,036 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 15:03:07,036 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181837527] [2021-12-18 15:03:07,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:03:07,036 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 15:03:07,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:03:07,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:03:07,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:03:07,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-18 15:03:07,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:03:07,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 15:03:07,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:03:07,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:03:07,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:03:07,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:03:07,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:03:07,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 15:03:07,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:03:07,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-18 15:03:07,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:03:07,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:03:07,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:03:07,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:03:07,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:03:07,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 15:03:07,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:03:07,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-18 15:03:07,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:03:07,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:03:07,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:03:07,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:03:07,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:03:07,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 15:03:07,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:03:07,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 15:03:07,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:03:07,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-18 15:03:07,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:03:07,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:03:07,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:03:07,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-18 15:03:07,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:03:07,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 15:03:07,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:03:07,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-18 15:03:07,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:03:07,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-18 15:03:07,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:03:07,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 15:03:07,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:03:07,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-18 15:03:07,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:03:07,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-18 15:03:07,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:03:07,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-18 15:03:07,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:03:07,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-18 15:03:07,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:03:07,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-18 15:03:07,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:03:07,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-12-18 15:03:07,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:03:07,716 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2021-12-18 15:03:07,716 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 15:03:07,716 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181837527] [2021-12-18 15:03:07,716 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1181837527] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 15:03:07,717 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 15:03:07,717 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-18 15:03:07,717 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046180725] [2021-12-18 15:03:07,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 15:03:07,717 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-18 15:03:07,717 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 15:03:07,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-18 15:03:07,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-18 15:03:07,718 INFO L87 Difference]: Start difference. First operand 9773 states and 13799 transitions. Second operand has 7 states, 6 states have (on average 12.5) internal successors, (75), 4 states have internal predecessors, (75), 3 states have call successors, (26), 5 states have call predecessors, (26), 1 states have return successors, (22), 2 states have call predecessors, (22), 3 states have call successors, (22) [2021-12-18 15:03:09,778 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:03:12,051 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:04:17,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 15:04:17,294 INFO L93 Difference]: Finished difference Result 10768 states and 15409 transitions. [2021-12-18 15:04:17,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-18 15:04:17,295 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 12.5) internal successors, (75), 4 states have internal predecessors, (75), 3 states have call successors, (26), 5 states have call predecessors, (26), 1 states have return successors, (22), 2 states have call predecessors, (22), 3 states have call successors, (22) Word has length 180 [2021-12-18 15:04:17,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 15:04:17,329 INFO L225 Difference]: With dead ends: 10768 [2021-12-18 15:04:17,329 INFO L226 Difference]: Without dead ends: 10766 [2021-12-18 15:04:17,336 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 61 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2021-12-18 15:04:17,337 INFO L933 BasicCegarLoop]: 5061 mSDtfsCounter, 10284 mSDsluCounter, 13065 mSDsCounter, 0 mSdLazyCounter, 11689 mSolverCounterSat, 8033 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 63.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10878 SdHoareTripleChecker+Valid, 18126 SdHoareTripleChecker+Invalid, 19724 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 8033 IncrementalHoareTripleChecker+Valid, 11689 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 67.4s IncrementalHoareTripleChecker+Time [2021-12-18 15:04:17,337 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10878 Valid, 18126 Invalid, 19724 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [8033 Valid, 11689 Invalid, 2 Unknown, 0 Unchecked, 67.4s Time] [2021-12-18 15:04:17,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10766 states. [2021-12-18 15:04:17,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10766 to 9809. [2021-12-18 15:04:17,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9809 states, 6437 states have (on average 1.2614572005592668) internal successors, (8120), 6643 states have internal predecessors, (8120), 2733 states have call successors, (2733), 606 states have call predecessors, (2733), 636 states have return successors, (2975), 2699 states have call predecessors, (2975), 2730 states have call successors, (2975) [2021-12-18 15:04:17,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9809 states to 9809 states and 13828 transitions. [2021-12-18 15:04:17,766 INFO L78 Accepts]: Start accepts. Automaton has 9809 states and 13828 transitions. Word has length 180 [2021-12-18 15:04:17,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 15:04:17,767 INFO L470 AbstractCegarLoop]: Abstraction has 9809 states and 13828 transitions. [2021-12-18 15:04:17,767 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 12.5) internal successors, (75), 4 states have internal predecessors, (75), 3 states have call successors, (26), 5 states have call predecessors, (26), 1 states have return successors, (22), 2 states have call predecessors, (22), 3 states have call successors, (22) [2021-12-18 15:04:17,767 INFO L276 IsEmpty]: Start isEmpty. Operand 9809 states and 13828 transitions. [2021-12-18 15:04:17,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2021-12-18 15:04:17,769 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 15:04:17,769 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 15:04:17,769 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-12-18 15:04:17,769 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 15:04:17,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 15:04:17,769 INFO L85 PathProgramCache]: Analyzing trace with hash 1210655949, now seen corresponding path program 1 times [2021-12-18 15:04:17,769 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 15:04:17,770 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926281031] [2021-12-18 15:04:17,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:04:17,770 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 15:04:17,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:04:18,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:04:18,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:04:18,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-18 15:04:18,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:04:18,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 15:04:18,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:04:18,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:04:18,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:04:18,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:04:18,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:04:18,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 15:04:18,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:04:18,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-18 15:04:18,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:04:18,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:04:18,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:04:18,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:04:18,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:04:18,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 15:04:18,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:04:18,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-18 15:04:18,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:04:18,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:04:18,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:04:18,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:04:18,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:04:18,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 15:04:18,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:04:18,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 15:04:18,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:04:18,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-18 15:04:18,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:04:18,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:04:18,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:04:18,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-18 15:04:18,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:04:18,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 15:04:18,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:04:18,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-18 15:04:18,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:04:18,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 15:04:18,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:04:18,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-18 15:04:18,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:04:18,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-12-18 15:04:18,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:04:18,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-18 15:04:18,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:04:18,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-12-18 15:04:18,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:04:18,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-18 15:04:18,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:04:18,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-18 15:04:18,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:04:18,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2021-12-18 15:04:18,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:04:18,407 INFO L134 CoverageAnalysis]: Checked inductivity of 234 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 234 trivial. 0 not checked. [2021-12-18 15:04:18,408 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 15:04:18,408 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926281031] [2021-12-18 15:04:18,408 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926281031] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 15:04:18,408 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 15:04:18,408 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 15:04:18,408 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688379975] [2021-12-18 15:04:18,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 15:04:18,409 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 15:04:18,409 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 15:04:18,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 15:04:18,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 15:04:18,409 INFO L87 Difference]: Start difference. First operand 9809 states and 13828 transitions. Second operand has 6 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 3 states have call successors, (27), 4 states have call predecessors, (27), 2 states have return successors, (22), 2 states have call predecessors, (22), 3 states have call successors, (22) [2021-12-18 15:04:20,476 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:04:22,741 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.26s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:04:58,310 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:05:00,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 15:05:00,732 INFO L93 Difference]: Finished difference Result 20556 states and 29231 transitions. [2021-12-18 15:05:00,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 15:05:00,733 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 3 states have call successors, (27), 4 states have call predecessors, (27), 2 states have return successors, (22), 2 states have call predecessors, (22), 3 states have call successors, (22) Word has length 188 [2021-12-18 15:05:00,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 15:05:00,775 INFO L225 Difference]: With dead ends: 20556 [2021-12-18 15:05:00,775 INFO L226 Difference]: Without dead ends: 10766 [2021-12-18 15:05:00,816 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-12-18 15:05:00,817 INFO L933 BasicCegarLoop]: 4491 mSDtfsCounter, 3677 mSDsluCounter, 9286 mSDsCounter, 0 mSdLazyCounter, 6556 mSolverCounterSat, 3471 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 38.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3986 SdHoareTripleChecker+Valid, 13777 SdHoareTripleChecker+Invalid, 10029 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3471 IncrementalHoareTripleChecker+Valid, 6556 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 40.9s IncrementalHoareTripleChecker+Time [2021-12-18 15:05:00,817 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3986 Valid, 13777 Invalid, 10029 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3471 Valid, 6556 Invalid, 2 Unknown, 0 Unchecked, 40.9s Time] [2021-12-18 15:05:00,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10766 states. [2021-12-18 15:05:01,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10766 to 9813. [2021-12-18 15:05:01,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9813 states, 6439 states have (on average 1.2613759900605683) internal successors, (8122), 6647 states have internal predecessors, (8122), 2733 states have call successors, (2733), 606 states have call predecessors, (2733), 638 states have return successors, (2977), 2699 states have call predecessors, (2977), 2730 states have call successors, (2977) [2021-12-18 15:05:01,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9813 states to 9813 states and 13832 transitions. [2021-12-18 15:05:01,292 INFO L78 Accepts]: Start accepts. Automaton has 9813 states and 13832 transitions. Word has length 188 [2021-12-18 15:05:01,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 15:05:01,293 INFO L470 AbstractCegarLoop]: Abstraction has 9813 states and 13832 transitions. [2021-12-18 15:05:01,293 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 3 states have call successors, (27), 4 states have call predecessors, (27), 2 states have return successors, (22), 2 states have call predecessors, (22), 3 states have call successors, (22) [2021-12-18 15:05:01,293 INFO L276 IsEmpty]: Start isEmpty. Operand 9813 states and 13832 transitions. [2021-12-18 15:05:01,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2021-12-18 15:05:01,295 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 15:05:01,296 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 15:05:01,296 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-12-18 15:05:01,296 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 15:05:01,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 15:05:01,297 INFO L85 PathProgramCache]: Analyzing trace with hash -1500842331, now seen corresponding path program 1 times [2021-12-18 15:05:01,297 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 15:05:01,297 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079322389] [2021-12-18 15:05:01,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:05:01,297 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 15:05:01,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:05:01,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:05:01,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:05:01,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-18 15:05:01,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:05:01,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 15:05:01,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:05:01,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:05:01,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:05:01,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:05:01,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:05:01,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 15:05:01,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:05:01,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-18 15:05:01,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:05:01,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:05:01,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:05:01,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:05:01,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:05:01,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 15:05:01,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:05:01,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-18 15:05:01,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:05:01,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:05:01,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:05:01,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:05:01,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:05:01,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 15:05:01,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:05:01,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 15:05:01,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:05:01,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-18 15:05:01,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:05:01,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:05:01,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:05:01,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-18 15:05:01,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:05:01,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 15:05:01,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:05:01,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-18 15:05:01,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:05:01,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 15:05:01,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:05:01,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-18 15:05:01,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:05:01,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 15:05:01,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:05:01,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-12-18 15:05:01,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:05:01,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-12-18 15:05:01,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:05:01,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-12-18 15:05:01,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:05:01,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-18 15:05:01,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:05:01,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-18 15:05:01,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:05:01,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-12-18 15:05:01,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:05:01,896 INFO L134 CoverageAnalysis]: Checked inductivity of 234 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 234 trivial. 0 not checked. [2021-12-18 15:05:01,896 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 15:05:01,897 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079322389] [2021-12-18 15:05:01,897 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2079322389] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 15:05:01,897 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 15:05:01,897 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 15:05:01,898 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943600994] [2021-12-18 15:05:01,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 15:05:01,899 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 15:05:01,899 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 15:05:01,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 15:05:01,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-18 15:05:01,899 INFO L87 Difference]: Start difference. First operand 9813 states and 13832 transitions. Second operand has 5 states, 4 states have (on average 20.5) internal successors, (82), 3 states have internal predecessors, (82), 4 states have call successors, (28), 4 states have call predecessors, (28), 1 states have return successors, (23), 2 states have call predecessors, (23), 3 states have call successors, (23) [2021-12-18 15:05:03,973 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:05:06,250 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:05:38,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 15:05:38,383 INFO L93 Difference]: Finished difference Result 20927 states and 29809 transitions. [2021-12-18 15:05:38,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-18 15:05:38,384 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 20.5) internal successors, (82), 3 states have internal predecessors, (82), 4 states have call successors, (28), 4 states have call predecessors, (28), 1 states have return successors, (23), 2 states have call predecessors, (23), 3 states have call successors, (23) Word has length 192 [2021-12-18 15:05:38,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 15:05:38,434 INFO L225 Difference]: With dead ends: 20927 [2021-12-18 15:05:38,434 INFO L226 Difference]: Without dead ends: 11133 [2021-12-18 15:05:38,476 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-18 15:05:38,477 INFO L933 BasicCegarLoop]: 4555 mSDtfsCounter, 4120 mSDsluCounter, 5771 mSDsCounter, 0 mSdLazyCounter, 4566 mSolverCounterSat, 3645 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4494 SdHoareTripleChecker+Valid, 10326 SdHoareTripleChecker+Invalid, 8213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3645 IncrementalHoareTripleChecker+Valid, 4566 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 35.0s IncrementalHoareTripleChecker+Time [2021-12-18 15:05:38,477 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4494 Valid, 10326 Invalid, 8213 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3645 Valid, 4566 Invalid, 2 Unknown, 0 Unchecked, 35.0s Time] [2021-12-18 15:05:38,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11133 states. [2021-12-18 15:05:38,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11133 to 9821. [2021-12-18 15:05:38,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9821 states, 6445 states have (on average 1.26144297905353) internal successors, (8130), 6654 states have internal predecessors, (8130), 2734 states have call successors, (2734), 606 states have call predecessors, (2734), 639 states have return successors, (2980), 2700 states have call predecessors, (2980), 2731 states have call successors, (2980) [2021-12-18 15:05:38,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9821 states to 9821 states and 13844 transitions. [2021-12-18 15:05:38,986 INFO L78 Accepts]: Start accepts. Automaton has 9821 states and 13844 transitions. Word has length 192 [2021-12-18 15:05:38,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 15:05:38,987 INFO L470 AbstractCegarLoop]: Abstraction has 9821 states and 13844 transitions. [2021-12-18 15:05:38,987 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 20.5) internal successors, (82), 3 states have internal predecessors, (82), 4 states have call successors, (28), 4 states have call predecessors, (28), 1 states have return successors, (23), 2 states have call predecessors, (23), 3 states have call successors, (23) [2021-12-18 15:05:38,987 INFO L276 IsEmpty]: Start isEmpty. Operand 9821 states and 13844 transitions. [2021-12-18 15:05:38,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2021-12-18 15:05:38,989 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 15:05:38,990 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 15:05:38,990 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-12-18 15:05:38,990 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 15:05:38,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 15:05:38,990 INFO L85 PathProgramCache]: Analyzing trace with hash 1090925634, now seen corresponding path program 1 times [2021-12-18 15:05:38,991 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 15:05:38,991 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431811785] [2021-12-18 15:05:38,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:05:38,991 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 15:05:39,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:05:39,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:05:39,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:05:39,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-18 15:05:39,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:05:39,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 15:05:39,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:05:39,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:05:39,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:05:39,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:05:39,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:05:39,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 15:05:39,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:05:39,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-18 15:05:39,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:05:39,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:05:39,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:05:39,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:05:39,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:05:39,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 15:05:39,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:05:39,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-18 15:05:39,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:05:39,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:05:39,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:05:39,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:05:39,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:05:39,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 15:05:39,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:05:39,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 15:05:39,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:05:39,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-18 15:05:39,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:05:39,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:05:39,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:05:39,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-18 15:05:39,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:05:39,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 15:05:39,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:05:39,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-18 15:05:39,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:05:39,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-18 15:05:39,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:05:39,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-18 15:05:39,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:05:39,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-18 15:05:39,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:05:39,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-12-18 15:05:39,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:05:39,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-18 15:05:39,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:05:39,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-18 15:05:39,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:05:39,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-18 15:05:39,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:05:39,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-18 15:05:39,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:05:39,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-12-18 15:05:39,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:05:39,622 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2021-12-18 15:05:39,623 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 15:05:39,623 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431811785] [2021-12-18 15:05:39,623 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1431811785] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 15:05:39,623 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 15:05:39,623 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 15:05:39,623 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808396079] [2021-12-18 15:05:39,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 15:05:39,624 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 15:05:39,624 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 15:05:39,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 15:05:39,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 15:05:39,624 INFO L87 Difference]: Start difference. First operand 9821 states and 13844 transitions. Second operand has 6 states, 5 states have (on average 16.0) internal successors, (80), 3 states have internal predecessors, (80), 3 states have call successors, (28), 5 states have call predecessors, (28), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-12-18 15:05:41,690 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:05:43,939 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.25s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:05:46,202 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.26s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:06:26,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 15:06:26,026 INFO L93 Difference]: Finished difference Result 20857 states and 29946 transitions. [2021-12-18 15:06:26,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-18 15:06:26,026 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 16.0) internal successors, (80), 3 states have internal predecessors, (80), 3 states have call successors, (28), 5 states have call predecessors, (28), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 192 [2021-12-18 15:06:26,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 15:06:26,072 INFO L225 Difference]: With dead ends: 20857 [2021-12-18 15:06:26,072 INFO L226 Difference]: Without dead ends: 11055 [2021-12-18 15:06:26,106 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-12-18 15:06:26,106 INFO L933 BasicCegarLoop]: 4500 mSDtfsCounter, 5922 mSDsluCounter, 7520 mSDsCounter, 0 mSdLazyCounter, 5701 mSolverCounterSat, 5868 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 41.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6156 SdHoareTripleChecker+Valid, 12020 SdHoareTripleChecker+Invalid, 11572 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5868 IncrementalHoareTripleChecker+Valid, 5701 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 44.8s IncrementalHoareTripleChecker+Time [2021-12-18 15:06:26,107 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6156 Valid, 12020 Invalid, 11572 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5868 Valid, 5701 Invalid, 3 Unknown, 0 Unchecked, 44.8s Time] [2021-12-18 15:06:26,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11055 states. [2021-12-18 15:06:26,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11055 to 9651. [2021-12-18 15:06:26,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9651 states, 6357 states have (on average 1.2639609878873683) internal successors, (8035), 6557 states have internal predecessors, (8035), 2668 states have call successors, (2668), 601 states have call predecessors, (2668), 623 states have return successors, (2870), 2630 states have call predecessors, (2870), 2665 states have call successors, (2870) [2021-12-18 15:06:26,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9651 states to 9651 states and 13573 transitions. [2021-12-18 15:06:26,675 INFO L78 Accepts]: Start accepts. Automaton has 9651 states and 13573 transitions. Word has length 192 [2021-12-18 15:06:26,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 15:06:26,675 INFO L470 AbstractCegarLoop]: Abstraction has 9651 states and 13573 transitions. [2021-12-18 15:06:26,675 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 16.0) internal successors, (80), 3 states have internal predecessors, (80), 3 states have call successors, (28), 5 states have call predecessors, (28), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-12-18 15:06:26,675 INFO L276 IsEmpty]: Start isEmpty. Operand 9651 states and 13573 transitions. [2021-12-18 15:06:26,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2021-12-18 15:06:26,677 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 15:06:26,677 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 15:06:26,677 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-12-18 15:06:26,678 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 15:06:26,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 15:06:26,678 INFO L85 PathProgramCache]: Analyzing trace with hash 483802596, now seen corresponding path program 1 times [2021-12-18 15:06:26,678 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 15:06:26,678 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334349447] [2021-12-18 15:06:26,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:06:26,678 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 15:06:26,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:06:27,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:06:27,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:06:27,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-18 15:06:27,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:06:27,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 15:06:27,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:06:27,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:06:27,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:06:27,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:06:27,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:06:27,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 15:06:27,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:06:27,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-18 15:06:27,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:06:27,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:06:27,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:06:27,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:06:27,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:06:27,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 15:06:27,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:06:27,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-18 15:06:27,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:06:27,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:06:27,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:06:27,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:06:27,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:06:27,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 15:06:27,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:06:27,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 15:06:27,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:06:27,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-18 15:06:27,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:06:27,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:06:27,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:06:27,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-18 15:06:27,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:06:27,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 15:06:27,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:06:27,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-18 15:06:27,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:06:27,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 15:06:27,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:06:27,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-18 15:06:27,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:06:27,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 15:06:27,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:06:27,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-12-18 15:06:27,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:06:27,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-12-18 15:06:27,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:06:27,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-12-18 15:06:27,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:06:27,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-18 15:06:27,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:06:27,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-18 15:06:27,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:06:27,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-12-18 15:06:27,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:06:27,429 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 234 trivial. 0 not checked. [2021-12-18 15:06:27,429 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 15:06:27,429 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334349447] [2021-12-18 15:06:27,429 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [334349447] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 15:06:27,429 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 15:06:27,429 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-18 15:06:27,430 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113728349] [2021-12-18 15:06:27,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 15:06:27,430 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-18 15:06:27,430 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 15:06:27,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-18 15:06:27,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-18 15:06:27,431 INFO L87 Difference]: Start difference. First operand 9651 states and 13573 transitions. Second operand has 7 states, 6 states have (on average 14.166666666666666) internal successors, (85), 4 states have internal predecessors, (85), 3 states have call successors, (28), 5 states have call predecessors, (28), 1 states have return successors, (23), 2 states have call predecessors, (23), 3 states have call successors, (23) [2021-12-18 15:06:29,489 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:06:31,806 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.32s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:07:14,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 15:07:14,228 INFO L93 Difference]: Finished difference Result 10903 states and 15630 transitions. [2021-12-18 15:07:14,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-18 15:07:14,229 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 14.166666666666666) internal successors, (85), 4 states have internal predecessors, (85), 3 states have call successors, (28), 5 states have call predecessors, (28), 1 states have return successors, (23), 2 states have call predecessors, (23), 3 states have call successors, (23) Word has length 195 [2021-12-18 15:07:14,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 15:07:14,267 INFO L225 Difference]: With dead ends: 10903 [2021-12-18 15:07:14,267 INFO L226 Difference]: Without dead ends: 10901 [2021-12-18 15:07:14,275 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2021-12-18 15:07:14,276 INFO L933 BasicCegarLoop]: 4459 mSDtfsCounter, 7547 mSDsluCounter, 9217 mSDsCounter, 0 mSdLazyCounter, 6597 mSolverCounterSat, 5437 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 42.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7987 SdHoareTripleChecker+Valid, 13676 SdHoareTripleChecker+Invalid, 12036 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 5437 IncrementalHoareTripleChecker+Valid, 6597 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 45.2s IncrementalHoareTripleChecker+Time [2021-12-18 15:07:14,276 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7987 Valid, 13676 Invalid, 12036 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [5437 Valid, 6597 Invalid, 2 Unknown, 0 Unchecked, 45.2s Time] [2021-12-18 15:07:14,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10901 states. [2021-12-18 15:07:14,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10901 to 9667. [2021-12-18 15:07:14,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9667 states, 6369 states have (on average 1.2634636520646882) internal successors, (8047), 6569 states have internal predecessors, (8047), 2668 states have call successors, (2668), 605 states have call predecessors, (2668), 627 states have return successors, (2870), 2630 states have call predecessors, (2870), 2665 states have call successors, (2870) [2021-12-18 15:07:14,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9667 states to 9667 states and 13585 transitions. [2021-12-18 15:07:14,846 INFO L78 Accepts]: Start accepts. Automaton has 9667 states and 13585 transitions. Word has length 195 [2021-12-18 15:07:14,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 15:07:14,847 INFO L470 AbstractCegarLoop]: Abstraction has 9667 states and 13585 transitions. [2021-12-18 15:07:14,847 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 14.166666666666666) internal successors, (85), 4 states have internal predecessors, (85), 3 states have call successors, (28), 5 states have call predecessors, (28), 1 states have return successors, (23), 2 states have call predecessors, (23), 3 states have call successors, (23) [2021-12-18 15:07:14,847 INFO L276 IsEmpty]: Start isEmpty. Operand 9667 states and 13585 transitions. [2021-12-18 15:07:14,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2021-12-18 15:07:14,849 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 15:07:14,849 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 15:07:14,849 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-12-18 15:07:14,849 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 15:07:14,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 15:07:14,850 INFO L85 PathProgramCache]: Analyzing trace with hash 157709175, now seen corresponding path program 1 times [2021-12-18 15:07:14,850 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 15:07:14,850 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528862292] [2021-12-18 15:07:14,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:07:14,850 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 15:07:15,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:07:15,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:07:15,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:07:15,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-18 15:07:15,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:07:15,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 15:07:15,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:07:15,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:07:15,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:07:15,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:07:15,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:07:15,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 15:07:15,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:07:15,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-18 15:07:15,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:07:15,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:07:15,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:07:15,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:07:15,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:07:15,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 15:07:15,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:07:15,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-18 15:07:15,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:07:15,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:07:15,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:07:15,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:07:15,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:07:15,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 15:07:15,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:07:15,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 15:07:15,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:07:15,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-18 15:07:15,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:07:15,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:07:15,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:07:15,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-18 15:07:15,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:07:15,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 15:07:15,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:07:15,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-18 15:07:15,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:07:15,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 15:07:15,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:07:15,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-18 15:07:15,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:07:15,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 15:07:15,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:07:15,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-12-18 15:07:15,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:07:15,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-12-18 15:07:15,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:07:15,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-12-18 15:07:15,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:07:15,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-18 15:07:15,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:07:15,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-18 15:07:15,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:07:15,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-12-18 15:07:15,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:07:15,416 INFO L134 CoverageAnalysis]: Checked inductivity of 234 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 234 trivial. 0 not checked. [2021-12-18 15:07:15,416 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 15:07:15,416 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1528862292] [2021-12-18 15:07:15,416 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1528862292] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 15:07:15,416 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 15:07:15,416 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 15:07:15,416 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817959904] [2021-12-18 15:07:15,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 15:07:15,417 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 15:07:15,417 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 15:07:15,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 15:07:15,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-18 15:07:15,417 INFO L87 Difference]: Start difference. First operand 9667 states and 13585 transitions. Second operand has 5 states, 4 states have (on average 21.5) internal successors, (86), 3 states have internal predecessors, (86), 3 states have call successors, (28), 4 states have call predecessors, (28), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) [2021-12-18 15:07:17,478 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:07:19,757 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:07:51,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 15:07:51,507 INFO L93 Difference]: Finished difference Result 20647 states and 29375 transitions. [2021-12-18 15:07:51,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-18 15:07:51,508 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 21.5) internal successors, (86), 3 states have internal predecessors, (86), 3 states have call successors, (28), 4 states have call predecessors, (28), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) Word has length 196 [2021-12-18 15:07:51,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 15:07:51,539 INFO L225 Difference]: With dead ends: 20647 [2021-12-18 15:07:51,539 INFO L226 Difference]: Without dead ends: 10999 [2021-12-18 15:07:51,562 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-12-18 15:07:51,562 INFO L933 BasicCegarLoop]: 4509 mSDtfsCounter, 3755 mSDsluCounter, 6068 mSDsCounter, 0 mSdLazyCounter, 4510 mSolverCounterSat, 3499 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4064 SdHoareTripleChecker+Valid, 10577 SdHoareTripleChecker+Invalid, 8011 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3499 IncrementalHoareTripleChecker+Valid, 4510 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 34.8s IncrementalHoareTripleChecker+Time [2021-12-18 15:07:51,562 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4064 Valid, 10577 Invalid, 8011 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3499 Valid, 4510 Invalid, 2 Unknown, 0 Unchecked, 34.8s Time] [2021-12-18 15:07:51,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10999 states. [2021-12-18 15:07:51,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10999 to 9669. [2021-12-18 15:07:52,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9669 states, 6371 states have (on average 1.263380944906608) internal successors, (8049), 6571 states have internal predecessors, (8049), 2668 states have call successors, (2668), 605 states have call predecessors, (2668), 627 states have return successors, (2870), 2630 states have call predecessors, (2870), 2665 states have call successors, (2870) [2021-12-18 15:07:52,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9669 states to 9669 states and 13587 transitions. [2021-12-18 15:07:52,046 INFO L78 Accepts]: Start accepts. Automaton has 9669 states and 13587 transitions. Word has length 196 [2021-12-18 15:07:52,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 15:07:52,046 INFO L470 AbstractCegarLoop]: Abstraction has 9669 states and 13587 transitions. [2021-12-18 15:07:52,047 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 21.5) internal successors, (86), 3 states have internal predecessors, (86), 3 states have call successors, (28), 4 states have call predecessors, (28), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) [2021-12-18 15:07:52,047 INFO L276 IsEmpty]: Start isEmpty. Operand 9669 states and 13587 transitions. [2021-12-18 15:07:52,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2021-12-18 15:07:52,049 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 15:07:52,049 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 15:07:52,049 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-12-18 15:07:52,050 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 15:07:52,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 15:07:52,050 INFO L85 PathProgramCache]: Analyzing trace with hash 885463104, now seen corresponding path program 1 times [2021-12-18 15:07:52,050 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 15:07:52,050 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942502362] [2021-12-18 15:07:52,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:07:52,050 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 15:07:52,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:07:52,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:07:52,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:07:52,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-18 15:07:52,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:07:52,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 15:07:52,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:07:52,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:07:52,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:07:52,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:07:52,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:07:52,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 15:07:52,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:07:52,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-18 15:07:52,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:07:52,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:07:52,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:07:52,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:07:52,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:07:52,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 15:07:52,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:07:52,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-18 15:07:52,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:07:52,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:07:52,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:07:52,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:07:52,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:07:52,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 15:07:52,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:07:52,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 15:07:52,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:07:52,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-18 15:07:52,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:07:52,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:07:52,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:07:52,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-18 15:07:52,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:07:52,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 15:07:52,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:07:52,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-18 15:07:52,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:07:52,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 15:07:52,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:07:52,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-18 15:07:52,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:07:52,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 15:07:52,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:07:52,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-12-18 15:07:52,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:07:52,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-12-18 15:07:52,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:07:52,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-12-18 15:07:52,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:07:52,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-18 15:07:52,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:07:52,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-18 15:07:52,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:07:52,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-12-18 15:07:52,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:07:52,836 INFO L134 CoverageAnalysis]: Checked inductivity of 234 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 234 trivial. 0 not checked. [2021-12-18 15:07:52,836 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 15:07:52,836 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942502362] [2021-12-18 15:07:52,836 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1942502362] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 15:07:52,836 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 15:07:52,837 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-18 15:07:52,837 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826209780] [2021-12-18 15:07:52,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 15:07:52,837 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-18 15:07:52,837 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 15:07:52,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-18 15:07:52,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-18 15:07:52,838 INFO L87 Difference]: Start difference. First operand 9669 states and 13587 transitions. Second operand has 7 states, 6 states have (on average 14.5) internal successors, (87), 4 states have internal predecessors, (87), 3 states have call successors, (28), 5 states have call predecessors, (28), 2 states have return successors, (23), 2 states have call predecessors, (23), 3 states have call successors, (23) [2021-12-18 15:07:54,896 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:07:57,194 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.30s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:07:59,467 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:09:08,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 15:09:08,178 INFO L93 Difference]: Finished difference Result 11046 states and 15864 transitions. [2021-12-18 15:09:08,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-18 15:09:08,179 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 14.5) internal successors, (87), 4 states have internal predecessors, (87), 3 states have call successors, (28), 5 states have call predecessors, (28), 2 states have return successors, (23), 2 states have call predecessors, (23), 3 states have call successors, (23) Word has length 197 [2021-12-18 15:09:08,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 15:09:08,209 INFO L225 Difference]: With dead ends: 11046 [2021-12-18 15:09:08,209 INFO L226 Difference]: Without dead ends: 11044 [2021-12-18 15:09:08,213 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 62 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2021-12-18 15:09:08,213 INFO L933 BasicCegarLoop]: 4557 mSDtfsCounter, 7929 mSDsluCounter, 10658 mSDsCounter, 0 mSdLazyCounter, 11311 mSolverCounterSat, 6505 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 68.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8238 SdHoareTripleChecker+Valid, 15215 SdHoareTripleChecker+Invalid, 17819 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 6505 IncrementalHoareTripleChecker+Valid, 11311 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 73.2s IncrementalHoareTripleChecker+Time [2021-12-18 15:09:08,213 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8238 Valid, 15215 Invalid, 17819 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [6505 Valid, 11311 Invalid, 3 Unknown, 0 Unchecked, 73.2s Time] [2021-12-18 15:09:08,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11044 states. [2021-12-18 15:09:08,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11044 to 9683. [2021-12-18 15:09:08,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9683 states, 6381 states have (on average 1.2629681868045761) internal successors, (8059), 6581 states have internal predecessors, (8059), 2668 states have call successors, (2668), 607 states have call predecessors, (2668), 631 states have return successors, (2870), 2632 states have call predecessors, (2870), 2665 states have call successors, (2870) [2021-12-18 15:09:08,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9683 states to 9683 states and 13597 transitions. [2021-12-18 15:09:08,641 INFO L78 Accepts]: Start accepts. Automaton has 9683 states and 13597 transitions. Word has length 197 [2021-12-18 15:09:08,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 15:09:08,641 INFO L470 AbstractCegarLoop]: Abstraction has 9683 states and 13597 transitions. [2021-12-18 15:09:08,642 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 14.5) internal successors, (87), 4 states have internal predecessors, (87), 3 states have call successors, (28), 5 states have call predecessors, (28), 2 states have return successors, (23), 2 states have call predecessors, (23), 3 states have call successors, (23) [2021-12-18 15:09:08,642 INFO L276 IsEmpty]: Start isEmpty. Operand 9683 states and 13597 transitions. [2021-12-18 15:09:08,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2021-12-18 15:09:08,649 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 15:09:08,649 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 15:09:08,649 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-12-18 15:09:08,649 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 15:09:08,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 15:09:08,650 INFO L85 PathProgramCache]: Analyzing trace with hash 2117997395, now seen corresponding path program 1 times [2021-12-18 15:09:08,650 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 15:09:08,650 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589717906] [2021-12-18 15:09:08,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:09:08,651 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 15:09:09,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:09,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:09:09,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:09,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-18 15:09:09,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:09,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 15:09:09,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:09,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:09:09,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:10,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:09:10,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:10,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 15:09:10,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:10,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-18 15:09:10,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:10,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:09:10,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:10,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:09:10,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:10,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 15:09:10,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:10,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-18 15:09:10,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:10,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:09:10,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:10,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:09:10,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:10,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 15:09:10,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:10,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 15:09:10,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:10,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-18 15:09:10,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:10,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:09:10,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:10,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-18 15:09:10,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:10,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 15:09:10,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:10,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-18 15:09:10,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:10,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-18 15:09:10,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:10,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-18 15:09:10,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:10,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-18 15:09:10,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:10,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-12-18 15:09:10,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:10,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-18 15:09:10,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:10,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-18 15:09:10,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:10,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-18 15:09:10,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:10,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-18 15:09:10,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:10,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-12-18 15:09:10,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:10,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:09:10,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:10,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-18 15:09:10,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:10,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-18 15:09:10,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:10,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-18 15:09:10,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:10,475 INFO L134 CoverageAnalysis]: Checked inductivity of 293 backedges. 10 proven. 41 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2021-12-18 15:09:10,475 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 15:09:10,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589717906] [2021-12-18 15:09:10,475 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1589717906] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-18 15:09:10,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1345292755] [2021-12-18 15:09:10,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:09:10,476 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 15:09:10,476 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 15:09:10,477 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-18 15:09:10,480 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-18 15:09:13,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:13,409 INFO L263 TraceCheckSpWp]: Trace formula consists of 5607 conjuncts, 32 conjunts are in the unsatisfiable core [2021-12-18 15:09:13,427 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 15:09:15,519 INFO L134 CoverageAnalysis]: Checked inductivity of 293 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 188 trivial. 0 not checked. [2021-12-18 15:09:15,519 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 15:09:15,519 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1345292755] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 15:09:15,520 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-18 15:09:15,520 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [12] total 20 [2021-12-18 15:09:15,520 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263093409] [2021-12-18 15:09:15,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 15:09:15,521 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-18 15:09:15,521 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 15:09:15,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-18 15:09:15,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=342, Unknown=0, NotChecked=0, Total=380 [2021-12-18 15:09:15,522 INFO L87 Difference]: Start difference. First operand 9683 states and 13597 transitions. Second operand has 12 states, 11 states have (on average 7.909090909090909) internal successors, (87), 11 states have internal predecessors, (87), 5 states have call successors, (29), 2 states have call predecessors, (29), 4 states have return successors, (27), 5 states have call predecessors, (27), 5 states have call successors, (27) [2021-12-18 15:09:21,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 15:09:21,385 INFO L93 Difference]: Finished difference Result 21739 states and 30821 transitions. [2021-12-18 15:09:21,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-12-18 15:09:21,386 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.909090909090909) internal successors, (87), 11 states have internal predecessors, (87), 5 states have call successors, (29), 2 states have call predecessors, (29), 4 states have return successors, (27), 5 states have call predecessors, (27), 5 states have call successors, (27) Word has length 208 [2021-12-18 15:09:21,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 15:09:21,425 INFO L225 Difference]: With dead ends: 21739 [2021-12-18 15:09:21,425 INFO L226 Difference]: Without dead ends: 12073 [2021-12-18 15:09:21,452 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 292 GetRequests, 263 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=107, Invalid=763, Unknown=0, NotChecked=0, Total=870 [2021-12-18 15:09:21,452 INFO L933 BasicCegarLoop]: 6330 mSDtfsCounter, 2089 mSDsluCounter, 60281 mSDsCounter, 0 mSdLazyCounter, 701 mSolverCounterSat, 698 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2310 SdHoareTripleChecker+Valid, 66611 SdHoareTripleChecker+Invalid, 1399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 698 IncrementalHoareTripleChecker+Valid, 701 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2021-12-18 15:09:21,453 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2310 Valid, 66611 Invalid, 1399 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [698 Valid, 701 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2021-12-18 15:09:21,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12073 states. [2021-12-18 15:09:21,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12073 to 9699. [2021-12-18 15:09:21,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9699 states, 6393 states have (on average 1.262474581573596) internal successors, (8071), 6593 states have internal predecessors, (8071), 2672 states have call successors, (2672), 607 states have call predecessors, (2672), 631 states have return successors, (2874), 2636 states have call predecessors, (2874), 2669 states have call successors, (2874) [2021-12-18 15:09:22,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9699 states to 9699 states and 13617 transitions. [2021-12-18 15:09:22,072 INFO L78 Accepts]: Start accepts. Automaton has 9699 states and 13617 transitions. Word has length 208 [2021-12-18 15:09:22,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 15:09:22,073 INFO L470 AbstractCegarLoop]: Abstraction has 9699 states and 13617 transitions. [2021-12-18 15:09:22,073 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.909090909090909) internal successors, (87), 11 states have internal predecessors, (87), 5 states have call successors, (29), 2 states have call predecessors, (29), 4 states have return successors, (27), 5 states have call predecessors, (27), 5 states have call successors, (27) [2021-12-18 15:09:22,073 INFO L276 IsEmpty]: Start isEmpty. Operand 9699 states and 13617 transitions. [2021-12-18 15:09:22,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 452 [2021-12-18 15:09:22,076 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 15:09:22,076 INFO L514 BasicCegarLoop]: trace histogram [20, 20, 8, 8, 8, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 15:09:22,119 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-18 15:09:22,291 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2021-12-18 15:09:22,292 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 15:09:22,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 15:09:22,293 INFO L85 PathProgramCache]: Analyzing trace with hash -1038536204, now seen corresponding path program 1 times [2021-12-18 15:09:22,293 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 15:09:22,293 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166945670] [2021-12-18 15:09:22,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:09:22,294 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 15:09:22,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:22,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:09:22,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:22,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-18 15:09:22,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:22,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 15:09:22,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:22,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:09:22,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:22,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:09:22,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:22,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 15:09:22,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:22,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-18 15:09:22,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:22,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:09:22,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:22,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:09:22,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:22,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 15:09:22,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:22,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-18 15:09:22,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:22,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:09:22,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:22,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:09:22,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:22,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 15:09:22,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:22,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 15:09:22,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:22,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-18 15:09:22,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:22,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:09:22,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:22,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-18 15:09:22,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:22,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-18 15:09:22,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:22,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 15:09:22,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:22,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-18 15:09:22,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:22,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-18 15:09:22,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:22,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-12-18 15:09:22,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:22,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-18 15:09:22,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:22,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2021-12-18 15:09:22,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:22,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-12-18 15:09:22,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:22,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-12-18 15:09:22,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:22,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-12-18 15:09:22,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:22,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-12-18 15:09:22,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:22,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-18 15:09:22,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:22,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-12-18 15:09:22,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:22,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2021-12-18 15:09:22,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:22,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2021-12-18 15:09:23,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:23,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2021-12-18 15:09:23,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:23,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-12-18 15:09:23,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:23,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2021-12-18 15:09:23,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:23,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-12-18 15:09:23,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:23,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:09:23,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:23,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2021-12-18 15:09:23,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:23,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:09:23,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:23,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:09:23,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:23,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2021-12-18 15:09:23,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:23,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2021-12-18 15:09:23,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:23,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2021-12-18 15:09:23,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:23,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2021-12-18 15:09:23,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:23,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2021-12-18 15:09:23,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:23,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2021-12-18 15:09:23,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:23,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:09:23,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:23,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:09:23,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:23,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 15:09:23,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:23,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-18 15:09:23,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:23,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 333 [2021-12-18 15:09:23,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:23,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 338 [2021-12-18 15:09:23,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:23,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2021-12-18 15:09:23,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:23,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2021-12-18 15:09:23,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:23,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 353 [2021-12-18 15:09:23,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:23,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 362 [2021-12-18 15:09:23,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:23,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:09:23,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:23,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-18 15:09:23,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:23,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-18 15:09:23,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:23,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-18 15:09:23,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:23,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 385 [2021-12-18 15:09:23,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:23,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:09:23,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:23,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:09:23,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:23,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 15:09:23,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:23,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-18 15:09:23,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:23,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-18 15:09:23,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:23,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-18 15:09:23,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:23,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-18 15:09:23,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:23,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 15:09:23,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:23,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-18 15:09:23,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:23,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-18 15:09:23,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:23,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-18 15:09:23,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:09:23,211 INFO L134 CoverageAnalysis]: Checked inductivity of 826 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 826 trivial. 0 not checked. [2021-12-18 15:09:23,211 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 15:09:23,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166945670] [2021-12-18 15:09:23,211 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1166945670] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 15:09:23,211 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 15:09:23,211 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 15:09:23,212 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506001298] [2021-12-18 15:09:23,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 15:09:23,212 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 15:09:23,212 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 15:09:23,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 15:09:23,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 15:09:23,213 INFO L87 Difference]: Start difference. First operand 9699 states and 13617 transitions. Second operand has 6 states, 6 states have (on average 32.0) internal successors, (192), 3 states have internal predecessors, (192), 4 states have call successors, (70), 5 states have call predecessors, (70), 1 states have return successors, (66), 3 states have call predecessors, (66), 4 states have call successors, (66) [2021-12-18 15:09:25,276 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:09:27,553 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:09:29,828 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:09:42,590 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:10:01,287 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:10:02,395 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:10:15,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 15:10:15,107 INFO L93 Difference]: Finished difference Result 21601 states and 30941 transitions. [2021-12-18 15:10:15,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-18 15:10:15,116 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 32.0) internal successors, (192), 3 states have internal predecessors, (192), 4 states have call successors, (70), 5 states have call predecessors, (70), 1 states have return successors, (66), 3 states have call predecessors, (66), 4 states have call successors, (66) Word has length 451 [2021-12-18 15:10:15,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 15:10:15,159 INFO L225 Difference]: With dead ends: 21601 [2021-12-18 15:10:15,160 INFO L226 Difference]: Without dead ends: 11921 [2021-12-18 15:10:15,183 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2021-12-18 15:10:15,183 INFO L933 BasicCegarLoop]: 4297 mSDtfsCounter, 10073 mSDsluCounter, 4197 mSDsCounter, 0 mSdLazyCounter, 5197 mSolverCounterSat, 8368 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 46.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10597 SdHoareTripleChecker+Valid, 8494 SdHoareTripleChecker+Invalid, 13569 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8368 IncrementalHoareTripleChecker+Valid, 5197 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 50.0s IncrementalHoareTripleChecker+Time [2021-12-18 15:10:15,184 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10597 Valid, 8494 Invalid, 13569 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8368 Valid, 5197 Invalid, 4 Unknown, 0 Unchecked, 50.0s Time] [2021-12-18 15:10:15,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11921 states. [2021-12-18 15:10:15,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11921 to 9699. [2021-12-18 15:10:15,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9699 states, 6393 states have (on average 1.2621617394024716) internal successors, (8069), 6593 states have internal predecessors, (8069), 2672 states have call successors, (2672), 607 states have call predecessors, (2672), 631 states have return successors, (2874), 2636 states have call predecessors, (2874), 2669 states have call successors, (2874) [2021-12-18 15:10:15,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9699 states to 9699 states and 13615 transitions. [2021-12-18 15:10:15,697 INFO L78 Accepts]: Start accepts. Automaton has 9699 states and 13615 transitions. Word has length 451 [2021-12-18 15:10:15,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 15:10:15,697 INFO L470 AbstractCegarLoop]: Abstraction has 9699 states and 13615 transitions. [2021-12-18 15:10:15,697 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 32.0) internal successors, (192), 3 states have internal predecessors, (192), 4 states have call successors, (70), 5 states have call predecessors, (70), 1 states have return successors, (66), 3 states have call predecessors, (66), 4 states have call successors, (66) [2021-12-18 15:10:15,698 INFO L276 IsEmpty]: Start isEmpty. Operand 9699 states and 13615 transitions. [2021-12-18 15:10:15,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 452 [2021-12-18 15:10:15,700 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 15:10:15,700 INFO L514 BasicCegarLoop]: trace histogram [20, 20, 8, 8, 8, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 15:10:15,701 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-12-18 15:10:15,701 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 15:10:15,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 15:10:15,701 INFO L85 PathProgramCache]: Analyzing trace with hash -1982531022, now seen corresponding path program 1 times [2021-12-18 15:10:15,701 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 15:10:15,701 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754304848] [2021-12-18 15:10:15,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:10:15,702 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 15:10:15,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:10:16,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:10:16,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:10:16,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-18 15:10:16,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:10:16,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 15:10:16,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:10:16,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:10:16,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:10:16,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:10:16,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:10:16,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 15:10:16,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:10:16,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-18 15:10:16,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:10:16,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:10:16,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:10:16,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:10:16,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:10:16,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 15:10:16,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:10:16,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-18 15:10:16,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:10:16,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:10:16,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:10:16,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:10:16,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:10:16,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 15:10:16,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:10:16,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 15:10:16,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:10:16,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-18 15:10:16,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:10:16,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:10:16,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:10:16,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-18 15:10:16,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:10:16,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-18 15:10:16,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:10:16,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 15:10:16,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:10:16,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-18 15:10:16,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:10:16,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-18 15:10:16,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:10:16,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-12-18 15:10:16,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:10:16,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-18 15:10:16,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:10:16,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2021-12-18 15:10:16,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:10:16,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-12-18 15:10:16,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:10:16,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-12-18 15:10:16,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:10:16,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-12-18 15:10:16,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:10:16,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-12-18 15:10:16,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:10:16,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-18 15:10:16,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:10:16,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-12-18 15:10:16,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:10:16,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2021-12-18 15:10:16,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:10:16,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2021-12-18 15:10:16,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:10:16,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2021-12-18 15:10:16,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:10:16,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-12-18 15:10:16,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:10:16,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2021-12-18 15:10:16,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:10:16,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-12-18 15:10:16,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:10:16,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:10:16,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:10:16,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2021-12-18 15:10:16,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:10:16,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:10:16,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:10:16,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:10:16,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:10:16,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2021-12-18 15:10:16,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:10:16,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2021-12-18 15:10:16,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:10:16,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2021-12-18 15:10:16,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:10:16,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2021-12-18 15:10:16,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:10:16,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2021-12-18 15:10:16,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:10:16,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2021-12-18 15:10:16,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:10:16,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:10:16,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:10:16,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:10:16,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:10:16,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 15:10:16,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:10:16,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-18 15:10:16,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:10:16,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 333 [2021-12-18 15:10:16,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:10:16,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 338 [2021-12-18 15:10:16,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:10:16,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2021-12-18 15:10:16,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:10:16,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2021-12-18 15:10:16,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:10:16,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 353 [2021-12-18 15:10:16,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:10:16,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 362 [2021-12-18 15:10:16,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:10:16,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:10:16,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:10:16,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-18 15:10:16,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:10:16,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-18 15:10:16,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:10:16,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-18 15:10:16,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:10:16,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 385 [2021-12-18 15:10:16,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:10:16,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:10:16,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:10:16,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:10:16,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:10:16,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 15:10:16,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:10:16,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-18 15:10:16,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:10:16,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-18 15:10:16,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:10:16,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-18 15:10:16,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:10:16,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-18 15:10:16,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:10:16,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 15:10:16,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:10:16,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-18 15:10:16,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:10:16,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-18 15:10:16,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:10:16,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-18 15:10:16,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:10:16,546 INFO L134 CoverageAnalysis]: Checked inductivity of 826 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 826 trivial. 0 not checked. [2021-12-18 15:10:16,546 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 15:10:16,546 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754304848] [2021-12-18 15:10:16,546 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1754304848] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 15:10:16,546 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 15:10:16,547 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 15:10:16,547 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721680241] [2021-12-18 15:10:16,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 15:10:16,549 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 15:10:16,549 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 15:10:16,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 15:10:16,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 15:10:16,549 INFO L87 Difference]: Start difference. First operand 9699 states and 13615 transitions. Second operand has 6 states, 6 states have (on average 32.0) internal successors, (192), 3 states have internal predecessors, (192), 3 states have call successors, (70), 5 states have call predecessors, (70), 1 states have return successors, (66), 2 states have call predecessors, (66), 3 states have call successors, (66) [2021-12-18 15:10:18,614 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:10:20,919 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.30s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:10:23,235 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.31s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:10:37,194 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:10:43,495 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:11:08,545 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:11:25,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 15:11:25,814 INFO L93 Difference]: Finished difference Result 21631 states and 30983 transitions. [2021-12-18 15:11:25,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-18 15:11:25,815 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 32.0) internal successors, (192), 3 states have internal predecessors, (192), 3 states have call successors, (70), 5 states have call predecessors, (70), 1 states have return successors, (66), 2 states have call predecessors, (66), 3 states have call successors, (66) Word has length 451 [2021-12-18 15:11:25,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 15:11:25,859 INFO L225 Difference]: With dead ends: 21631 [2021-12-18 15:11:25,859 INFO L226 Difference]: Without dead ends: 11951 [2021-12-18 15:11:25,886 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2021-12-18 15:11:25,887 INFO L933 BasicCegarLoop]: 4338 mSDtfsCounter, 5571 mSDsluCounter, 7433 mSDsCounter, 0 mSdLazyCounter, 7639 mSolverCounterSat, 5935 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 62.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5965 SdHoareTripleChecker+Valid, 11771 SdHoareTripleChecker+Invalid, 13579 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 5935 IncrementalHoareTripleChecker+Valid, 7639 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 67.4s IncrementalHoareTripleChecker+Time [2021-12-18 15:11:25,887 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5965 Valid, 11771 Invalid, 13579 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [5935 Valid, 7639 Invalid, 5 Unknown, 0 Unchecked, 67.4s Time] [2021-12-18 15:11:25,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11951 states. [2021-12-18 15:11:26,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11951 to 9705. [2021-12-18 15:11:26,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9705 states, 6399 states have (on average 1.2619159243631817) internal successors, (8075), 6599 states have internal predecessors, (8075), 2672 states have call successors, (2672), 607 states have call predecessors, (2672), 631 states have return successors, (2874), 2636 states have call predecessors, (2874), 2669 states have call successors, (2874) [2021-12-18 15:11:26,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9705 states to 9705 states and 13621 transitions. [2021-12-18 15:11:26,591 INFO L78 Accepts]: Start accepts. Automaton has 9705 states and 13621 transitions. Word has length 451 [2021-12-18 15:11:26,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 15:11:26,592 INFO L470 AbstractCegarLoop]: Abstraction has 9705 states and 13621 transitions. [2021-12-18 15:11:26,592 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 32.0) internal successors, (192), 3 states have internal predecessors, (192), 3 states have call successors, (70), 5 states have call predecessors, (70), 1 states have return successors, (66), 2 states have call predecessors, (66), 3 states have call successors, (66) [2021-12-18 15:11:26,592 INFO L276 IsEmpty]: Start isEmpty. Operand 9705 states and 13621 transitions. [2021-12-18 15:11:26,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 472 [2021-12-18 15:11:26,594 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 15:11:26,595 INFO L514 BasicCegarLoop]: trace histogram [20, 20, 8, 8, 8, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 15:11:26,595 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-12-18 15:11:26,595 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 15:11:26,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 15:11:26,596 INFO L85 PathProgramCache]: Analyzing trace with hash -1972465237, now seen corresponding path program 1 times [2021-12-18 15:11:26,596 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 15:11:26,596 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526883310] [2021-12-18 15:11:26,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:11:26,596 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 15:11:26,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:27,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:11:27,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:27,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-18 15:11:27,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:27,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 15:11:27,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:27,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:11:27,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:27,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:11:27,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:27,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 15:11:27,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:27,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-18 15:11:27,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:27,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:11:27,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:27,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:11:27,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:27,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 15:11:27,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:27,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-18 15:11:27,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:27,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:11:27,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:27,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:11:27,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:27,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 15:11:27,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:27,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 15:11:27,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:27,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-18 15:11:27,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:27,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:11:27,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:27,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-18 15:11:27,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:27,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-18 15:11:27,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:27,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 15:11:27,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:27,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-18 15:11:27,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:27,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-18 15:11:27,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:27,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-12-18 15:11:27,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:27,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-18 15:11:27,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:27,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2021-12-18 15:11:27,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:27,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-12-18 15:11:27,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:27,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-12-18 15:11:27,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:27,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-12-18 15:11:27,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:27,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-12-18 15:11:27,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:27,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-18 15:11:27,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:27,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-12-18 15:11:27,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:27,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-12-18 15:11:27,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:27,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2021-12-18 15:11:27,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:27,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2021-12-18 15:11:27,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:27,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-12-18 15:11:27,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:27,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2021-12-18 15:11:27,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:27,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2021-12-18 15:11:27,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:27,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2021-12-18 15:11:27,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:27,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2021-12-18 15:11:27,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:27,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2021-12-18 15:11:27,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:27,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2021-12-18 15:11:27,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:27,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:11:27,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:27,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2021-12-18 15:11:27,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:27,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:11:27,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:27,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:11:27,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:27,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 293 [2021-12-18 15:11:27,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:27,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2021-12-18 15:11:27,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:27,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2021-12-18 15:11:27,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:27,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2021-12-18 15:11:27,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:27,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2021-12-18 15:11:27,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:27,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2021-12-18 15:11:27,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:27,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:11:27,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:27,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:11:27,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:27,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 15:11:27,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:27,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-18 15:11:27,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:27,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 353 [2021-12-18 15:11:27,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:27,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2021-12-18 15:11:27,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:27,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 363 [2021-12-18 15:11:27,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:27,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2021-12-18 15:11:27,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:27,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 373 [2021-12-18 15:11:27,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:27,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 382 [2021-12-18 15:11:27,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:27,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:11:27,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:27,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-18 15:11:27,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:27,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-18 15:11:27,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:27,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-18 15:11:27,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:27,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 405 [2021-12-18 15:11:27,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:27,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:11:27,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:27,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:11:27,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:27,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 15:11:27,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:27,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-18 15:11:27,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:27,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-18 15:11:27,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:27,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-18 15:11:27,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:27,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-18 15:11:27,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:27,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 15:11:27,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:27,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-18 15:11:27,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:27,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-18 15:11:27,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:27,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-18 15:11:27,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:27,581 INFO L134 CoverageAnalysis]: Checked inductivity of 881 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 880 trivial. 0 not checked. [2021-12-18 15:11:27,581 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 15:11:27,581 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526883310] [2021-12-18 15:11:27,582 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [526883310] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-18 15:11:27,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1245719302] [2021-12-18 15:11:27,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:11:27,582 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 15:11:27,582 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 15:11:27,583 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-18 15:11:27,583 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-18 15:11:30,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:30,818 INFO L263 TraceCheckSpWp]: Trace formula consists of 7372 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-18 15:11:30,829 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 15:11:32,358 INFO L134 CoverageAnalysis]: Checked inductivity of 881 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 793 trivial. 0 not checked. [2021-12-18 15:11:32,358 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 15:11:32,358 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1245719302] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 15:11:32,359 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-18 15:11:32,359 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2021-12-18 15:11:32,359 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976236916] [2021-12-18 15:11:32,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 15:11:32,360 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-18 15:11:32,360 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 15:11:32,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-18 15:11:32,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-12-18 15:11:32,360 INFO L87 Difference]: Start difference. First operand 9705 states and 13621 transitions. Second operand has 3 states, 3 states have (on average 67.66666666666667) internal successors, (203), 3 states have internal predecessors, (203), 2 states have call successors, (74), 2 states have call predecessors, (74), 2 states have return successors, (70), 2 states have call predecessors, (70), 2 states have call successors, (70) [2021-12-18 15:11:32,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 15:11:32,870 INFO L93 Difference]: Finished difference Result 19394 states and 27269 transitions. [2021-12-18 15:11:32,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-18 15:11:32,871 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 67.66666666666667) internal successors, (203), 3 states have internal predecessors, (203), 2 states have call successors, (74), 2 states have call predecessors, (74), 2 states have return successors, (70), 2 states have call predecessors, (70), 2 states have call successors, (70) Word has length 471 [2021-12-18 15:11:32,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 15:11:32,907 INFO L225 Difference]: With dead ends: 19394 [2021-12-18 15:11:32,907 INFO L226 Difference]: Without dead ends: 9708 [2021-12-18 15:11:32,937 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 628 GetRequests, 622 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-12-18 15:11:32,939 INFO L933 BasicCegarLoop]: 5054 mSDtfsCounter, 1 mSDsluCounter, 5051 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 10105 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-18 15:11:32,939 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 10105 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-18 15:11:32,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9708 states. [2021-12-18 15:11:33,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9708 to 9708. [2021-12-18 15:11:33,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9708 states, 6402 states have (on average 1.2617931896282413) internal successors, (8078), 6602 states have internal predecessors, (8078), 2672 states have call successors, (2672), 607 states have call predecessors, (2672), 631 states have return successors, (2874), 2636 states have call predecessors, (2874), 2669 states have call successors, (2874) [2021-12-18 15:11:33,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9708 states to 9708 states and 13624 transitions. [2021-12-18 15:11:33,594 INFO L78 Accepts]: Start accepts. Automaton has 9708 states and 13624 transitions. Word has length 471 [2021-12-18 15:11:33,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 15:11:33,595 INFO L470 AbstractCegarLoop]: Abstraction has 9708 states and 13624 transitions. [2021-12-18 15:11:33,595 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 67.66666666666667) internal successors, (203), 3 states have internal predecessors, (203), 2 states have call successors, (74), 2 states have call predecessors, (74), 2 states have return successors, (70), 2 states have call predecessors, (70), 2 states have call successors, (70) [2021-12-18 15:11:33,595 INFO L276 IsEmpty]: Start isEmpty. Operand 9708 states and 13624 transitions. [2021-12-18 15:11:33,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 480 [2021-12-18 15:11:33,598 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 15:11:33,598 INFO L514 BasicCegarLoop]: trace histogram [20, 20, 8, 8, 8, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 15:11:33,654 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-18 15:11:33,811 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2021-12-18 15:11:33,812 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 15:11:33,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 15:11:33,812 INFO L85 PathProgramCache]: Analyzing trace with hash 2102678542, now seen corresponding path program 1 times [2021-12-18 15:11:33,812 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 15:11:33,812 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106627783] [2021-12-18 15:11:33,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:11:33,813 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 15:11:34,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:34,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:11:34,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:34,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-18 15:11:34,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:34,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 15:11:34,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:34,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:11:34,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:34,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:11:34,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:34,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 15:11:34,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:34,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-18 15:11:34,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:34,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:11:34,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:34,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:11:34,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:34,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 15:11:34,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:34,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-18 15:11:34,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:34,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:11:34,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:34,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:11:34,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:34,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 15:11:34,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:34,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 15:11:34,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:34,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-18 15:11:34,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:34,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:11:34,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:34,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-18 15:11:34,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:34,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-18 15:11:34,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:34,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 15:11:34,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:34,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-18 15:11:34,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:34,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-18 15:11:34,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:34,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-12-18 15:11:34,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:34,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-18 15:11:34,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:34,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2021-12-18 15:11:34,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:34,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-12-18 15:11:34,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:34,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-12-18 15:11:34,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:34,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-12-18 15:11:34,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:34,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-12-18 15:11:34,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:34,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-18 15:11:34,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:34,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-12-18 15:11:34,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:34,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-12-18 15:11:34,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:34,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2021-12-18 15:11:34,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:34,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2021-12-18 15:11:34,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:34,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-12-18 15:11:34,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:34,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2021-12-18 15:11:34,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:34,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2021-12-18 15:11:34,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:34,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2021-12-18 15:11:34,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:34,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2021-12-18 15:11:34,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:34,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2021-12-18 15:11:34,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:34,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2021-12-18 15:11:34,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:34,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:11:34,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:34,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2021-12-18 15:11:34,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:34,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:11:34,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:34,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:11:34,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:34,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2021-12-18 15:11:34,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:34,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 301 [2021-12-18 15:11:34,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:34,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2021-12-18 15:11:34,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:34,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2021-12-18 15:11:34,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:34,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2021-12-18 15:11:34,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:34,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2021-12-18 15:11:34,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:34,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2021-12-18 15:11:34,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:34,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:11:34,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:34,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:11:34,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:34,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 15:11:34,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:34,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-18 15:11:34,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:34,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 361 [2021-12-18 15:11:34,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:34,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 366 [2021-12-18 15:11:34,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:34,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 371 [2021-12-18 15:11:34,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:34,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2021-12-18 15:11:34,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:34,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 381 [2021-12-18 15:11:34,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:34,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 390 [2021-12-18 15:11:34,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:34,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:11:34,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:34,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-18 15:11:34,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:34,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-18 15:11:34,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:34,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-18 15:11:34,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:34,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 413 [2021-12-18 15:11:34,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:34,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:11:34,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:34,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:11:34,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:34,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 15:11:34,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:34,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-18 15:11:34,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:34,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-18 15:11:34,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:34,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-18 15:11:34,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:34,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-18 15:11:34,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:34,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 15:11:34,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:34,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-18 15:11:34,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:34,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-18 15:11:34,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:34,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-18 15:11:34,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:34,802 INFO L134 CoverageAnalysis]: Checked inductivity of 882 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 881 trivial. 0 not checked. [2021-12-18 15:11:34,802 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 15:11:34,803 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106627783] [2021-12-18 15:11:34,803 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1106627783] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-18 15:11:34,803 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2131052329] [2021-12-18 15:11:34,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:11:34,803 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 15:11:34,803 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 15:11:34,804 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-18 15:11:34,825 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-18 15:11:38,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:38,194 INFO L263 TraceCheckSpWp]: Trace formula consists of 7396 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-18 15:11:38,210 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 15:11:40,767 INFO L134 CoverageAnalysis]: Checked inductivity of 882 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 836 trivial. 0 not checked. [2021-12-18 15:11:40,767 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 15:11:40,767 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2131052329] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 15:11:40,767 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-18 15:11:40,768 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 10 [2021-12-18 15:11:40,768 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583658605] [2021-12-18 15:11:40,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 15:11:40,768 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 15:11:40,769 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 15:11:40,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 15:11:40,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-12-18 15:11:40,770 INFO L87 Difference]: Start difference. First operand 9708 states and 13624 transitions. Second operand has 5 states, 5 states have (on average 42.2) internal successors, (211), 5 states have internal predecessors, (211), 2 states have call successors, (76), 2 states have call predecessors, (76), 2 states have return successors, (72), 2 states have call predecessors, (72), 2 states have call successors, (72) [2021-12-18 15:11:42,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 15:11:42,496 INFO L93 Difference]: Finished difference Result 20874 states and 29475 transitions. [2021-12-18 15:11:42,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-18 15:11:42,497 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 42.2) internal successors, (211), 5 states have internal predecessors, (211), 2 states have call successors, (76), 2 states have call predecessors, (76), 2 states have return successors, (72), 2 states have call predecessors, (72), 2 states have call successors, (72) Word has length 479 [2021-12-18 15:11:42,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 15:11:42,533 INFO L225 Difference]: With dead ends: 20874 [2021-12-18 15:11:42,533 INFO L226 Difference]: Without dead ends: 11185 [2021-12-18 15:11:42,559 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 642 GetRequests, 632 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2021-12-18 15:11:42,560 INFO L933 BasicCegarLoop]: 6336 mSDtfsCounter, 1559 mSDsluCounter, 16953 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 541 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1570 SdHoareTripleChecker+Valid, 23289 SdHoareTripleChecker+Invalid, 577 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 541 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-18 15:11:42,560 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1570 Valid, 23289 Invalid, 577 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [541 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-18 15:11:42,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11185 states. [2021-12-18 15:11:43,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11185 to 9714. [2021-12-18 15:11:43,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9714 states, 6408 states have (on average 1.2615480649188515) internal successors, (8084), 6608 states have internal predecessors, (8084), 2672 states have call successors, (2672), 607 states have call predecessors, (2672), 631 states have return successors, (2874), 2636 states have call predecessors, (2874), 2669 states have call successors, (2874) [2021-12-18 15:11:43,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9714 states to 9714 states and 13630 transitions. [2021-12-18 15:11:43,121 INFO L78 Accepts]: Start accepts. Automaton has 9714 states and 13630 transitions. Word has length 479 [2021-12-18 15:11:43,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 15:11:43,122 INFO L470 AbstractCegarLoop]: Abstraction has 9714 states and 13630 transitions. [2021-12-18 15:11:43,122 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 42.2) internal successors, (211), 5 states have internal predecessors, (211), 2 states have call successors, (76), 2 states have call predecessors, (76), 2 states have return successors, (72), 2 states have call predecessors, (72), 2 states have call successors, (72) [2021-12-18 15:11:43,122 INFO L276 IsEmpty]: Start isEmpty. Operand 9714 states and 13630 transitions. [2021-12-18 15:11:43,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 480 [2021-12-18 15:11:43,125 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 15:11:43,125 INFO L514 BasicCegarLoop]: trace histogram [20, 20, 8, 8, 8, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 15:11:43,172 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-12-18 15:11:43,326 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 15:11:43,326 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 15:11:43,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 15:11:43,327 INFO L85 PathProgramCache]: Analyzing trace with hash 911020304, now seen corresponding path program 1 times [2021-12-18 15:11:43,327 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 15:11:43,327 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530430443] [2021-12-18 15:11:43,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:11:43,327 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 15:11:43,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:43,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:11:43,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:43,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-18 15:11:43,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:43,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 15:11:43,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:43,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:11:43,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:43,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:11:43,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:43,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 15:11:43,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:43,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-18 15:11:43,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:43,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:11:43,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:43,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:11:43,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:43,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 15:11:43,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:43,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-18 15:11:43,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:43,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:11:43,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:43,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:11:43,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:43,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 15:11:43,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:43,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 15:11:43,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:43,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-18 15:11:43,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:43,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:11:43,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:43,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-18 15:11:43,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:43,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-18 15:11:43,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:43,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 15:11:43,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:43,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-18 15:11:43,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:43,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-18 15:11:43,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:43,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-12-18 15:11:43,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:43,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-18 15:11:43,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:43,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2021-12-18 15:11:43,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:43,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-12-18 15:11:43,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:43,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-12-18 15:11:43,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:43,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-12-18 15:11:43,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:43,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-12-18 15:11:43,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:43,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-18 15:11:43,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:43,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-12-18 15:11:43,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:43,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-12-18 15:11:43,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:43,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2021-12-18 15:11:43,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:43,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2021-12-18 15:11:43,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:44,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-12-18 15:11:44,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:44,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2021-12-18 15:11:44,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:44,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2021-12-18 15:11:44,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:44,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2021-12-18 15:11:44,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:44,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2021-12-18 15:11:44,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:44,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2021-12-18 15:11:44,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:44,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2021-12-18 15:11:44,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:44,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:11:44,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:44,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2021-12-18 15:11:44,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:44,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:11:44,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:44,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:11:44,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:44,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2021-12-18 15:11:44,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:44,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 301 [2021-12-18 15:11:44,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:44,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2021-12-18 15:11:44,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:44,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2021-12-18 15:11:44,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:44,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2021-12-18 15:11:44,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:44,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2021-12-18 15:11:44,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:44,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2021-12-18 15:11:44,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:44,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:11:44,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:44,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:11:44,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:44,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 15:11:44,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:44,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-18 15:11:44,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:44,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 361 [2021-12-18 15:11:44,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:44,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 366 [2021-12-18 15:11:44,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:44,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 371 [2021-12-18 15:11:44,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:44,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2021-12-18 15:11:44,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:44,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 381 [2021-12-18 15:11:44,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:44,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 390 [2021-12-18 15:11:44,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:44,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:11:44,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:44,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-18 15:11:44,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:44,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-18 15:11:44,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:44,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-18 15:11:44,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:44,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 413 [2021-12-18 15:11:44,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:44,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:11:44,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:44,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:11:44,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:44,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 15:11:44,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:44,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-18 15:11:44,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:44,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-18 15:11:44,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:44,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-18 15:11:44,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:44,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-18 15:11:44,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:44,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 15:11:44,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:44,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-18 15:11:44,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:44,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-18 15:11:44,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:44,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-18 15:11:44,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:44,242 INFO L134 CoverageAnalysis]: Checked inductivity of 882 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 881 trivial. 0 not checked. [2021-12-18 15:11:44,242 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 15:11:44,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530430443] [2021-12-18 15:11:44,242 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1530430443] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-18 15:11:44,243 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [432603893] [2021-12-18 15:11:44,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:11:44,243 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 15:11:44,243 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 15:11:44,244 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-18 15:11:44,245 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-18 15:11:47,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:47,858 INFO L263 TraceCheckSpWp]: Trace formula consists of 7407 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-18 15:11:47,875 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 15:11:49,989 INFO L134 CoverageAnalysis]: Checked inductivity of 882 backedges. 76 proven. 1 refuted. 0 times theorem prover too weak. 805 trivial. 0 not checked. [2021-12-18 15:11:49,989 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-18 15:11:51,341 INFO L134 CoverageAnalysis]: Checked inductivity of 882 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 881 trivial. 0 not checked. [2021-12-18 15:11:51,341 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [432603893] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-18 15:11:51,341 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-18 15:11:51,342 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4, 4] total 10 [2021-12-18 15:11:51,342 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617718365] [2021-12-18 15:11:51,342 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-18 15:11:51,343 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-18 15:11:51,343 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 15:11:51,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-18 15:11:51,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-12-18 15:11:51,344 INFO L87 Difference]: Start difference. First operand 9714 states and 13630 transitions. Second operand has 10 states, 10 states have (on average 29.0) internal successors, (290), 7 states have internal predecessors, (290), 6 states have call successors, (142), 5 states have call predecessors, (142), 2 states have return successors, (126), 5 states have call predecessors, (126), 6 states have call successors, (126) [2021-12-18 15:11:53,419 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:11:55,705 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:11:58,002 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:12:18,742 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] Killed by 15