./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-drivers-clk1_drivers-media-platform-vsp1-vsp1.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d918a06-a781-471c-8655-67fe7f6452eb/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d918a06-a781-471c-8655-67fe7f6452eb/bin/utaipan-eEHZpOm5b7/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d918a06-a781-471c-8655-67fe7f6452eb/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d918a06-a781-471c-8655-67fe7f6452eb/bin/utaipan-eEHZpOm5b7/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-drivers-clk1_drivers-media-platform-vsp1-vsp1.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d918a06-a781-471c-8655-67fe7f6452eb/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d918a06-a781-471c-8655-67fe7f6452eb/bin/utaipan-eEHZpOm5b7 --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 8492b6089c1cc1619e91f114c32634d7ce609cc0a792df890c55445589dc7829 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 20:14:34,372 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 20:14:34,374 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 20:14:34,423 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 20:14:34,424 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 20:14:34,426 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 20:14:34,432 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 20:14:34,441 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 20:14:34,445 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 20:14:34,448 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 20:14:34,449 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 20:14:34,453 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 20:14:34,454 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 20:14:34,464 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 20:14:34,467 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 20:14:34,471 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 20:14:34,474 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 20:14:34,478 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 20:14:34,480 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 20:14:34,488 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 20:14:34,496 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 20:14:34,497 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 20:14:34,499 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 20:14:34,500 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 20:14:34,504 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 20:14:34,505 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 20:14:34,506 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 20:14:34,507 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 20:14:34,508 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 20:14:34,509 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 20:14:34,510 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 20:14:34,511 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 20:14:34,512 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 20:14:34,513 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 20:14:34,514 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 20:14:34,515 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 20:14:34,516 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 20:14:34,516 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 20:14:34,517 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 20:14:34,518 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 20:14:34,519 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 20:14:34,521 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d918a06-a781-471c-8655-67fe7f6452eb/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-25 20:14:34,552 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 20:14:34,552 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 20:14:34,553 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 20:14:34,553 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 20:14:34,554 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 20:14:34,554 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 20:14:34,554 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 20:14:34,555 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 20:14:34,555 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 20:14:34,555 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-25 20:14:34,556 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 20:14:34,556 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 20:14:34,556 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-25 20:14:34,556 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-25 20:14:34,557 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 20:14:34,557 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-25 20:14:34,557 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-25 20:14:34,558 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-25 20:14:34,558 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 20:14:34,559 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 20:14:34,559 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 20:14:34,559 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 20:14:34,560 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 20:14:34,560 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 20:14:34,560 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 20:14:34,560 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 20:14:34,561 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 20:14:34,561 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 20:14:34,561 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 20:14:34,561 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 20:14:34,562 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 20:14:34,562 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 20:14:34,562 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 20:14:34,568 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-25 20:14:34,568 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 20:14:34,568 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 20:14:34,569 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 20:14:34,569 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 20:14:34,569 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d918a06-a781-471c-8655-67fe7f6452eb/bin/utaipan-eEHZpOm5b7/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d918a06-a781-471c-8655-67fe7f6452eb/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8492b6089c1cc1619e91f114c32634d7ce609cc0a792df890c55445589dc7829 [2021-11-25 20:14:34,869 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 20:14:34,896 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 20:14:34,899 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 20:14:34,901 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 20:14:34,902 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 20:14:34,904 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d918a06-a781-471c-8655-67fe7f6452eb/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-drivers-clk1_drivers-media-platform-vsp1-vsp1.cil.i [2021-11-25 20:14:34,982 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d918a06-a781-471c-8655-67fe7f6452eb/bin/utaipan-eEHZpOm5b7/data/d3ef3840e/50799ac019704bcd85fe5eb11a83fba7/FLAGb5eea9d15 [2021-11-25 20:14:36,302 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 20:14:36,303 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d918a06-a781-471c-8655-67fe7f6452eb/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-drivers-clk1_drivers-media-platform-vsp1-vsp1.cil.i [2021-11-25 20:14:36,406 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d918a06-a781-471c-8655-67fe7f6452eb/bin/utaipan-eEHZpOm5b7/data/d3ef3840e/50799ac019704bcd85fe5eb11a83fba7/FLAGb5eea9d15 [2021-11-25 20:14:36,862 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d918a06-a781-471c-8655-67fe7f6452eb/bin/utaipan-eEHZpOm5b7/data/d3ef3840e/50799ac019704bcd85fe5eb11a83fba7 [2021-11-25 20:14:36,866 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 20:14:36,868 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 20:14:36,879 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 20:14:36,880 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 20:14:36,883 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 20:14:36,884 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:14:36" (1/1) ... [2021-11-25 20:14:36,886 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8a45e3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:14:36, skipping insertion in model container [2021-11-25 20:14:36,886 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:14:36" (1/1) ... [2021-11-25 20:14:36,895 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 20:14:37,191 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 20:14:43,430 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d918a06-a781-471c-8655-67fe7f6452eb/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-drivers-clk1_drivers-media-platform-vsp1-vsp1.cil.i[564650,564663] [2021-11-25 20:14:43,478 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 20:14:43,578 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 20:14:44,415 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d918a06-a781-471c-8655-67fe7f6452eb/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-drivers-clk1_drivers-media-platform-vsp1-vsp1.cil.i[564650,564663] [2021-11-25 20:14:44,423 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 20:14:44,947 INFO L208 MainTranslator]: Completed translation [2021-11-25 20:14:44,948 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:14:44 WrapperNode [2021-11-25 20:14:44,948 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 20:14:44,949 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 20:14:44,949 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 20:14:44,950 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 20:14:44,960 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:14:44" (1/1) ... [2021-11-25 20:14:45,224 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:14:44" (1/1) ... [2021-11-25 20:14:45,656 INFO L137 Inliner]: procedures = 628, calls = 4592, calls flagged for inlining = 327, calls inlined = 323, statements flattened = 9499 [2021-11-25 20:14:45,657 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 20:14:45,658 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 20:14:45,659 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 20:14:45,659 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 20:14:45,671 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:14:44" (1/1) ... [2021-11-25 20:14:45,672 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:14:44" (1/1) ... [2021-11-25 20:14:45,876 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:14:44" (1/1) ... [2021-11-25 20:14:45,878 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:14:44" (1/1) ... [2021-11-25 20:14:46,228 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:14:44" (1/1) ... [2021-11-25 20:14:46,295 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:14:44" (1/1) ... [2021-11-25 20:14:46,529 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:14:44" (1/1) ... [2021-11-25 20:14:46,616 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 20:14:46,618 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 20:14:46,618 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 20:14:46,618 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 20:14:46,623 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:14:44" (1/1) ... [2021-11-25 20:14:46,633 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 20:14:46,647 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d918a06-a781-471c-8655-67fe7f6452eb/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:14:46,665 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d918a06-a781-471c-8655-67fe7f6452eb/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 20:14:46,682 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d918a06-a781-471c-8655-67fe7f6452eb/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 20:14:46,732 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_destroy_entities [2021-11-25 20:14:46,732 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_destroy_entities [2021-11-25 20:14:46,732 INFO L130 BoogieDeclarations]: Found specification of procedure lif_s_stream [2021-11-25 20:14:46,732 INFO L138 BoogieDeclarations]: Found implementation of procedure lif_s_stream [2021-11-25 20:14:46,733 INFO L130 BoogieDeclarations]: Found specification of procedure uds_enum_mbus_code [2021-11-25 20:14:46,733 INFO L138 BoogieDeclarations]: Found implementation of procedure uds_enum_mbus_code [2021-11-25 20:14:46,733 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-25 20:14:46,733 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-25 20:14:46,733 INFO L130 BoogieDeclarations]: Found specification of procedure vb2_ioctl_prepare_buf [2021-11-25 20:14:46,734 INFO L138 BoogieDeclarations]: Found implementation of procedure vb2_ioctl_prepare_buf [2021-11-25 20:14:46,734 INFO L130 BoogieDeclarations]: Found specification of procedure vb2_ioctl_dqbuf [2021-11-25 20:14:46,734 INFO L138 BoogieDeclarations]: Found implementation of procedure vb2_ioctl_dqbuf [2021-11-25 20:14:46,734 INFO L130 BoogieDeclarations]: Found specification of procedure hsit_get_format [2021-11-25 20:14:46,734 INFO L138 BoogieDeclarations]: Found implementation of procedure hsit_get_format [2021-11-25 20:14:46,735 INFO L130 BoogieDeclarations]: Found specification of procedure sru_enum_frame_size [2021-11-25 20:14:46,735 INFO L138 BoogieDeclarations]: Found implementation of procedure sru_enum_frame_size [2021-11-25 20:14:46,735 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-25 20:14:46,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-25 20:14:46,736 INFO L130 BoogieDeclarations]: Found specification of procedure to_uds [2021-11-25 20:14:46,736 INFO L138 BoogieDeclarations]: Found implementation of procedure to_uds [2021-11-25 20:14:46,736 INFO L130 BoogieDeclarations]: Found specification of procedure to_vsp1_video [2021-11-25 20:14:46,736 INFO L138 BoogieDeclarations]: Found implementation of procedure to_vsp1_video [2021-11-25 20:14:46,737 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_video_buffer_prepare [2021-11-25 20:14:46,737 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_video_buffer_prepare [2021-11-25 20:14:46,737 INFO L130 BoogieDeclarations]: Found specification of procedure media_entity_remote_pad [2021-11-25 20:14:46,737 INFO L138 BoogieDeclarations]: Found implementation of procedure media_entity_remote_pad [2021-11-25 20:14:46,738 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2021-11-25 20:14:46,738 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2021-11-25 20:14:46,738 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_entity_init_formats [2021-11-25 20:14:46,738 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_entity_init_formats [2021-11-25 20:14:46,738 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_entity_init [2021-11-25 20:14:46,739 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_entity_init [2021-11-25 20:14:46,739 INFO L130 BoogieDeclarations]: Found specification of procedure uds_try_format [2021-11-25 20:14:46,739 INFO L138 BoogieDeclarations]: Found implementation of procedure uds_try_format [2021-11-25 20:14:46,739 INFO L130 BoogieDeclarations]: Found specification of procedure uds_enum_frame_size [2021-11-25 20:14:46,739 INFO L138 BoogieDeclarations]: Found implementation of procedure uds_enum_frame_size [2021-11-25 20:14:46,740 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-25 20:14:46,740 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-25 20:14:46,740 INFO L130 BoogieDeclarations]: Found specification of procedure to_lut [2021-11-25 20:14:46,741 INFO L138 BoogieDeclarations]: Found implementation of procedure to_lut [2021-11-25 20:14:46,741 INFO L130 BoogieDeclarations]: Found specification of procedure sru_enum_mbus_code [2021-11-25 20:14:46,741 INFO L138 BoogieDeclarations]: Found implementation of procedure sru_enum_mbus_code [2021-11-25 20:14:46,741 INFO L130 BoogieDeclarations]: Found specification of procedure lut_get_format [2021-11-25 20:14:46,742 INFO L138 BoogieDeclarations]: Found implementation of procedure lut_get_format [2021-11-25 20:14:46,742 INFO L130 BoogieDeclarations]: Found specification of procedure sru_get_format [2021-11-25 20:14:46,742 INFO L138 BoogieDeclarations]: Found implementation of procedure sru_get_format [2021-11-25 20:14:46,743 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_read [2021-11-25 20:14:46,743 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_read [2021-11-25 20:14:46,743 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_irq_handler [2021-11-25 20:14:46,744 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_irq_handler [2021-11-25 20:14:46,745 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_rwpf_enum_frame_size [2021-11-25 20:14:46,745 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_rwpf_enum_frame_size [2021-11-25 20:14:46,745 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_video_frame_end [2021-11-25 20:14:46,746 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_video_frame_end [2021-11-25 20:14:46,746 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-25 20:14:46,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-25 20:14:46,746 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-25 20:14:46,747 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-25 20:14:46,747 INFO L130 BoogieDeclarations]: Found specification of procedure vb2_dma_contig_cleanup_ctx [2021-11-25 20:14:46,748 INFO L138 BoogieDeclarations]: Found implementation of procedure vb2_dma_contig_cleanup_ctx [2021-11-25 20:14:46,748 INFO L130 BoogieDeclarations]: Found specification of procedure wpf_s_stream [2021-11-25 20:14:46,748 INFO L138 BoogieDeclarations]: Found implementation of procedure wpf_s_stream [2021-11-25 20:14:46,749 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-25 20:14:46,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-25 20:14:46,749 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_rwpf_get_selection [2021-11-25 20:14:46,749 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_rwpf_get_selection [2021-11-25 20:14:46,749 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-11-25 20:14:46,750 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-11-25 20:14:46,750 INFO L130 BoogieDeclarations]: Found specification of procedure uds_s_stream [2021-11-25 20:14:46,750 INFO L138 BoogieDeclarations]: Found implementation of procedure uds_s_stream [2021-11-25 20:14:46,750 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_resource [2021-11-25 20:14:46,750 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_resource [2021-11-25 20:14:46,751 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_uds_write [2021-11-25 20:14:46,752 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_uds_write [2021-11-25 20:14:46,752 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-25 20:14:46,752 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_pipeline_cleanup [2021-11-25 20:14:46,752 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_pipeline_cleanup [2021-11-25 20:14:46,753 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2021-11-25 20:14:46,753 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2021-11-25 20:14:46,753 INFO L130 BoogieDeclarations]: Found specification of procedure sru_s_stream [2021-11-25 20:14:46,753 INFO L138 BoogieDeclarations]: Found implementation of procedure sru_s_stream [2021-11-25 20:14:46,753 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-11-25 20:14:46,754 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-11-25 20:14:46,754 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_rwpf_get_format [2021-11-25 20:14:46,755 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_rwpf_get_format [2021-11-25 20:14:46,755 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2021-11-25 20:14:46,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2021-11-25 20:14:46,755 INFO L130 BoogieDeclarations]: Found specification of procedure vb2_ioctl_reqbufs [2021-11-25 20:14:46,756 INFO L138 BoogieDeclarations]: Found implementation of procedure vb2_ioctl_reqbufs [2021-11-25 20:14:46,757 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_is_locked [2021-11-25 20:14:46,757 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_is_locked [2021-11-25 20:14:46,757 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-25 20:14:46,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-25 20:14:46,758 INFO L130 BoogieDeclarations]: Found specification of procedure to_rwpf [2021-11-25 20:14:46,758 INFO L138 BoogieDeclarations]: Found implementation of procedure to_rwpf [2021-11-25 20:14:46,758 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_get_format_info [2021-11-25 20:14:46,758 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_get_format_info [2021-11-25 20:14:46,758 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-25 20:14:46,759 INFO L130 BoogieDeclarations]: Found specification of procedure hsit_enum_mbus_code [2021-11-25 20:14:46,759 INFO L138 BoogieDeclarations]: Found implementation of procedure hsit_enum_mbus_code [2021-11-25 20:14:46,759 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_drivers_clk1__more_at_exit [2021-11-25 20:14:46,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_drivers_clk1__more_at_exit [2021-11-25 20:14:46,760 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-25 20:14:46,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-25 20:14:46,760 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-25 20:14:46,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-25 20:14:46,761 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2021-11-25 20:14:46,761 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2021-11-25 20:14:46,761 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_pipeline_ready [2021-11-25 20:14:46,761 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_pipeline_ready [2021-11-25 20:14:46,762 INFO L130 BoogieDeclarations]: Found specification of procedure sru_s_ctrl [2021-11-25 20:14:46,763 INFO L138 BoogieDeclarations]: Found implementation of procedure sru_s_ctrl [2021-11-25 20:14:46,766 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_rwpf_set_selection [2021-11-25 20:14:46,766 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_rwpf_set_selection [2021-11-25 20:14:46,766 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_hsit_write [2021-11-25 20:14:46,767 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_hsit_write [2021-11-25 20:14:46,768 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_video_set_format [2021-11-25 20:14:46,769 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_video_set_format [2021-11-25 20:14:46,769 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-25 20:14:46,769 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-25 20:14:46,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-25 20:14:46,776 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-25 20:14:46,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-25 20:14:46,776 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_3 [2021-11-25 20:14:46,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_3 [2021-11-25 20:14:46,777 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_5 [2021-11-25 20:14:46,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_5 [2021-11-25 20:14:46,777 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_4 [2021-11-25 20:14:46,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_4 [2021-11-25 20:14:46,778 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_7 [2021-11-25 20:14:46,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_7 [2021-11-25 20:14:46,778 INFO L130 BoogieDeclarations]: Found specification of procedure lif_enum_frame_size [2021-11-25 20:14:46,778 INFO L138 BoogieDeclarations]: Found implementation of procedure lif_enum_frame_size [2021-11-25 20:14:46,778 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_6 [2021-11-25 20:14:46,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_6 [2021-11-25 20:14:46,779 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 20:14:46,779 INFO L130 BoogieDeclarations]: Found specification of procedure sru_set_format [2021-11-25 20:14:46,779 INFO L138 BoogieDeclarations]: Found implementation of procedure sru_set_format [2021-11-25 20:14:46,779 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-25 20:14:46,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-25 20:14:46,780 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-25 20:14:46,780 INFO L130 BoogieDeclarations]: Found specification of procedure to_hsit [2021-11-25 20:14:46,780 INFO L138 BoogieDeclarations]: Found implementation of procedure to_hsit [2021-11-25 20:14:46,780 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_write [2021-11-25 20:14:46,780 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_write [2021-11-25 20:14:46,781 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-25 20:14:46,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-25 20:14:46,781 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_video_start_streaming [2021-11-25 20:14:46,781 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_video_start_streaming [2021-11-25 20:14:46,781 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-25 20:14:46,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-25 20:14:46,782 INFO L130 BoogieDeclarations]: Found specification of procedure video_get_drvdata___1 [2021-11-25 20:14:46,782 INFO L138 BoogieDeclarations]: Found implementation of procedure video_get_drvdata___1 [2021-11-25 20:14:46,782 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_video_get_format [2021-11-25 20:14:46,782 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_video_get_format [2021-11-25 20:14:46,782 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_video_open [2021-11-25 20:14:46,783 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_video_open [2021-11-25 20:14:46,783 INFO L130 BoogieDeclarations]: Found specification of procedure to_vsp1_video_buffer [2021-11-25 20:14:46,783 INFO L138 BoogieDeclarations]: Found implementation of procedure to_vsp1_video_buffer [2021-11-25 20:14:46,783 INFO L130 BoogieDeclarations]: Found specification of procedure to_vsp1_pipeline [2021-11-25 20:14:46,783 INFO L138 BoogieDeclarations]: Found implementation of procedure to_vsp1_pipeline [2021-11-25 20:14:46,784 INFO L130 BoogieDeclarations]: Found specification of procedure rpf_vdev_queue [2021-11-25 20:14:46,784 INFO L138 BoogieDeclarations]: Found implementation of procedure rpf_vdev_queue [2021-11-25 20:14:46,784 INFO L130 BoogieDeclarations]: Found specification of procedure media_entity_type [2021-11-25 20:14:46,784 INFO L138 BoogieDeclarations]: Found implementation of procedure media_entity_type [2021-11-25 20:14:46,785 INFO L130 BoogieDeclarations]: Found specification of procedure devm_kzalloc [2021-11-25 20:14:46,785 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_kzalloc [2021-11-25 20:14:46,785 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-25 20:14:46,785 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-25 20:14:46,786 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2021-11-25 20:14:46,786 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2021-11-25 20:14:46,786 INFO L130 BoogieDeclarations]: Found specification of procedure sru_try_format [2021-11-25 20:14:46,786 INFO L138 BoogieDeclarations]: Found implementation of procedure sru_try_format [2021-11-25 20:14:46,786 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 20:14:46,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 20:14:46,787 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_pm_suspend [2021-11-25 20:14:46,787 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_pm_suspend [2021-11-25 20:14:46,787 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-11-25 20:14:46,787 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-11-25 20:14:46,787 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_clocks_enable [2021-11-25 20:14:46,788 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_clocks_enable [2021-11-25 20:14:46,788 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_video_try_format [2021-11-25 20:14:46,788 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_video_try_format [2021-11-25 20:14:46,788 INFO L130 BoogieDeclarations]: Found specification of procedure to_sru [2021-11-25 20:14:46,788 INFO L138 BoogieDeclarations]: Found implementation of procedure to_sru [2021-11-25 20:14:46,790 INFO L130 BoogieDeclarations]: Found specification of procedure uds_output_size [2021-11-25 20:14:46,790 INFO L138 BoogieDeclarations]: Found implementation of procedure uds_output_size [2021-11-25 20:14:46,790 INFO L130 BoogieDeclarations]: Found specification of procedure vb2_ops_wait_finish [2021-11-25 20:14:46,791 INFO L138 BoogieDeclarations]: Found implementation of procedure vb2_ops_wait_finish [2021-11-25 20:14:46,791 INFO L130 BoogieDeclarations]: Found specification of procedure lut_s_stream [2021-11-25 20:14:46,791 INFO L138 BoogieDeclarations]: Found implementation of procedure lut_s_stream [2021-11-25 20:14:46,791 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_video_cleanup [2021-11-25 20:14:46,791 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_video_cleanup [2021-11-25 20:14:46,791 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-25 20:14:46,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-25 20:14:46,792 INFO L130 BoogieDeclarations]: Found specification of procedure vb2_ioctl_create_bufs [2021-11-25 20:14:46,792 INFO L138 BoogieDeclarations]: Found implementation of procedure vb2_ioctl_create_bufs [2021-11-25 20:14:46,792 INFO L130 BoogieDeclarations]: Found specification of procedure uds_passband_width [2021-11-25 20:14:46,792 INFO L138 BoogieDeclarations]: Found implementation of procedure uds_passband_width [2021-11-25 20:14:46,793 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_clocks_disable [2021-11-25 20:14:46,793 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_clocks_disable [2021-11-25 20:14:46,793 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_lif_write [2021-11-25 20:14:46,793 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_lif_write [2021-11-25 20:14:46,793 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-25 20:14:46,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-25 20:14:46,794 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_entity_get_pad_format [2021-11-25 20:14:46,794 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_entity_get_pad_format [2021-11-25 20:14:46,794 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_subdev_init [2021-11-25 20:14:46,794 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_subdev_init [2021-11-25 20:14:46,794 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-11-25 20:14:46,795 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-11-25 20:14:46,795 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-25 20:14:46,795 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-25 20:14:46,795 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_sru_write [2021-11-25 20:14:46,795 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_sru_write [2021-11-25 20:14:46,795 INFO L130 BoogieDeclarations]: Found specification of procedure hsit_set_format [2021-11-25 20:14:46,796 INFO L138 BoogieDeclarations]: Found implementation of procedure hsit_set_format [2021-11-25 20:14:46,796 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_rpf_write [2021-11-25 20:14:46,796 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_rpf_write [2021-11-25 20:14:46,796 INFO L130 BoogieDeclarations]: Found specification of procedure __vsp1_video_try_format [2021-11-25 20:14:46,796 INFO L138 BoogieDeclarations]: Found implementation of procedure __vsp1_video_try_format [2021-11-25 20:14:46,796 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2021-11-25 20:14:46,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2021-11-25 20:14:46,797 INFO L130 BoogieDeclarations]: Found specification of procedure media_entity_create_link [2021-11-25 20:14:46,797 INFO L138 BoogieDeclarations]: Found implementation of procedure media_entity_create_link [2021-11-25 20:14:46,797 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2021-11-25 20:14:46,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2021-11-25 20:14:46,798 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_video_release [2021-11-25 20:14:46,798 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_video_release [2021-11-25 20:14:46,798 INFO L130 BoogieDeclarations]: Found specification of procedure video_drvdata [2021-11-25 20:14:46,798 INFO L138 BoogieDeclarations]: Found implementation of procedure video_drvdata [2021-11-25 20:14:46,798 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2021-11-25 20:14:46,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2021-11-25 20:14:46,799 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_remove [2021-11-25 20:14:46,799 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_remove [2021-11-25 20:14:46,799 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_pm_resume [2021-11-25 20:14:46,799 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_pm_resume [2021-11-25 20:14:46,799 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-25 20:14:46,800 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-25 20:14:46,805 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-25 20:14:46,805 INFO L130 BoogieDeclarations]: Found specification of procedure uds_output_limits [2021-11-25 20:14:46,805 INFO L138 BoogieDeclarations]: Found implementation of procedure uds_output_limits [2021-11-25 20:14:46,805 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_clk_disable_unprepare_21 [2021-11-25 20:14:46,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_clk_disable_unprepare_21 [2021-11-25 20:14:46,806 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-25 20:14:46,806 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_pipeline_run [2021-11-25 20:14:46,806 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_pipeline_run [2021-11-25 20:14:46,806 INFO L130 BoogieDeclarations]: Found specification of procedure uds_compute_ratio [2021-11-25 20:14:46,807 INFO L138 BoogieDeclarations]: Found implementation of procedure uds_compute_ratio [2021-11-25 20:14:46,809 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_video_stop_streaming [2021-11-25 20:14:46,809 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_video_stop_streaming [2021-11-25 20:14:46,809 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-25 20:14:46,809 INFO L130 BoogieDeclarations]: Found specification of procedure uds_set_format [2021-11-25 20:14:46,809 INFO L138 BoogieDeclarations]: Found implementation of procedure uds_set_format [2021-11-25 20:14:46,810 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_probe [2021-11-25 20:14:46,810 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_probe [2021-11-25 20:14:46,810 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2021-11-25 20:14:46,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2021-11-25 20:14:46,810 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_hsit_create [2021-11-25 20:14:46,810 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_hsit_create [2021-11-25 20:14:46,811 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2021-11-25 20:14:46,811 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2021-11-25 20:14:46,811 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-11-25 20:14:46,811 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-11-25 20:14:46,811 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-11-25 20:14:46,811 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-11-25 20:14:46,812 INFO L130 BoogieDeclarations]: Found specification of procedure devm_clk_get [2021-11-25 20:14:46,812 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_clk_get [2021-11-25 20:14:46,812 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-25 20:14:46,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-25 20:14:46,812 INFO L130 BoogieDeclarations]: Found specification of procedure vb2_ioctl_querybuf [2021-11-25 20:14:46,813 INFO L138 BoogieDeclarations]: Found implementation of procedure vb2_ioctl_querybuf [2021-11-25 20:14:46,813 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-25 20:14:46,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-25 20:14:46,813 INFO L130 BoogieDeclarations]: Found specification of procedure to_vsp1_entity [2021-11-25 20:14:46,813 INFO L138 BoogieDeclarations]: Found implementation of procedure to_vsp1_entity [2021-11-25 20:14:46,813 INFO L130 BoogieDeclarations]: Found specification of procedure to_lif [2021-11-25 20:14:46,814 INFO L138 BoogieDeclarations]: Found implementation of procedure to_lif [2021-11-25 20:14:46,814 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_rwpf_set_format [2021-11-25 20:14:46,814 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_rwpf_set_format [2021-11-25 20:14:46,814 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_subdev_get_try_format___3 [2021-11-25 20:14:46,814 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_subdev_get_try_format___3 [2021-11-25 20:14:46,814 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_subdev_link_validate [2021-11-25 20:14:46,815 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_subdev_link_validate [2021-11-25 20:14:46,815 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_subdev_get_try_format___2 [2021-11-25 20:14:46,815 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_subdev_get_try_format___2 [2021-11-25 20:14:46,815 INFO L130 BoogieDeclarations]: Found specification of procedure vb2_ops_wait_prepare [2021-11-25 20:14:46,815 INFO L138 BoogieDeclarations]: Found implementation of procedure vb2_ops_wait_prepare [2021-11-25 20:14:46,816 INFO L130 BoogieDeclarations]: Found specification of procedure video_device_release_empty [2021-11-25 20:14:46,816 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_rwpf_enum_mbus_code [2021-11-25 20:14:46,816 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_rwpf_enum_mbus_code [2021-11-25 20:14:46,816 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2021-11-25 20:14:46,816 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2021-11-25 20:14:46,816 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_subdev_get_try_format___5 [2021-11-25 20:14:46,817 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_subdev_get_try_format___5 [2021-11-25 20:14:46,817 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_subdev_get_try_format___4 [2021-11-25 20:14:46,817 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_subdev_get_try_format___4 [2021-11-25 20:14:46,817 INFO L130 BoogieDeclarations]: Found specification of procedure lif_set_format [2021-11-25 20:14:46,817 INFO L138 BoogieDeclarations]: Found implementation of procedure lif_set_format [2021-11-25 20:14:46,817 INFO L130 BoogieDeclarations]: Found specification of procedure lut_enum_mbus_code [2021-11-25 20:14:46,818 INFO L138 BoogieDeclarations]: Found implementation of procedure lut_enum_mbus_code [2021-11-25 20:14:46,818 INFO L130 BoogieDeclarations]: Found specification of procedure lif_get_format [2021-11-25 20:14:46,818 INFO L138 BoogieDeclarations]: Found implementation of procedure lif_get_format [2021-11-25 20:14:46,818 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_rwpf_get_crop [2021-11-25 20:14:46,818 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_rwpf_get_crop [2021-11-25 20:14:46,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-25 20:14:46,819 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-25 20:14:46,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-25 20:14:46,819 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_video_querycap [2021-11-25 20:14:46,819 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_video_querycap [2021-11-25 20:14:46,819 INFO L130 BoogieDeclarations]: Found specification of procedure media_entity_init [2021-11-25 20:14:46,820 INFO L138 BoogieDeclarations]: Found implementation of procedure media_entity_init [2021-11-25 20:14:46,820 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_video_buffer_queue [2021-11-25 20:14:46,820 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_video_buffer_queue [2021-11-25 20:14:46,820 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_video_init [2021-11-25 20:14:46,820 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_video_init [2021-11-25 20:14:46,820 INFO L130 BoogieDeclarations]: Found specification of procedure rpf_s_stream [2021-11-25 20:14:46,821 INFO L138 BoogieDeclarations]: Found implementation of procedure rpf_s_stream [2021-11-25 20:14:46,821 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_vsp1_platform_driver_exit_28_2 [2021-11-25 20:14:46,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_vsp1_platform_driver_exit_28_2 [2021-11-25 20:14:46,821 INFO L130 BoogieDeclarations]: Found specification of procedure media_entity_pipeline_stop [2021-11-25 20:14:46,821 INFO L138 BoogieDeclarations]: Found implementation of procedure media_entity_pipeline_stop [2021-11-25 20:14:46,821 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_set_subdevdata [2021-11-25 20:14:46,822 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_set_subdevdata [2021-11-25 20:14:46,822 INFO L130 BoogieDeclarations]: Found specification of procedure lut_set_format [2021-11-25 20:14:46,822 INFO L138 BoogieDeclarations]: Found implementation of procedure lut_set_format [2021-11-25 20:14:46,822 INFO L130 BoogieDeclarations]: Found specification of procedure hsit_enum_frame_size [2021-11-25 20:14:46,822 INFO L138 BoogieDeclarations]: Found implementation of procedure hsit_enum_frame_size [2021-11-25 20:14:46,822 INFO L130 BoogieDeclarations]: Found specification of procedure lut_enum_frame_size [2021-11-25 20:14:46,823 INFO L138 BoogieDeclarations]: Found implementation of procedure lut_enum_frame_size [2021-11-25 20:14:46,823 INFO L130 BoogieDeclarations]: Found specification of procedure vb2_get_drv_priv [2021-11-25 20:14:46,823 INFO L138 BoogieDeclarations]: Found implementation of procedure vb2_get_drv_priv [2021-11-25 20:14:46,823 INFO L130 BoogieDeclarations]: Found specification of procedure hsit_s_stream [2021-11-25 20:14:46,823 INFO L138 BoogieDeclarations]: Found implementation of procedure hsit_s_stream [2021-11-25 20:14:46,823 INFO L130 BoogieDeclarations]: Found specification of procedure wpf_vdev_queue [2021-11-25 20:14:46,824 INFO L138 BoogieDeclarations]: Found implementation of procedure wpf_vdev_queue [2021-11-25 20:14:46,824 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2021-11-25 20:14:46,824 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2021-11-25 20:14:46,824 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-25 20:14:46,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-25 20:14:46,825 INFO L130 BoogieDeclarations]: Found specification of procedure uds_get_format [2021-11-25 20:14:46,825 INFO L138 BoogieDeclarations]: Found implementation of procedure uds_get_format [2021-11-25 20:14:46,825 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2021-11-25 20:14:46,825 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2021-11-25 20:14:46,825 INFO L130 BoogieDeclarations]: Found specification of procedure media_entity_cleanup [2021-11-25 20:14:46,825 INFO L138 BoogieDeclarations]: Found implementation of procedure media_entity_cleanup [2021-11-25 20:14:46,826 INFO L130 BoogieDeclarations]: Found specification of procedure vb2_ioctl_qbuf [2021-11-25 20:14:46,826 INFO L138 BoogieDeclarations]: Found implementation of procedure vb2_ioctl_qbuf [2021-11-25 20:14:46,826 INFO L130 BoogieDeclarations]: Found specification of procedure lif_enum_mbus_code [2021-11-25 20:14:46,826 INFO L138 BoogieDeclarations]: Found implementation of procedure lif_enum_mbus_code [2021-11-25 20:14:46,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-25 20:14:46,826 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-11-25 20:14:46,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-11-25 20:14:46,827 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-25 20:14:46,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-25 20:14:48,819 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 20:14:48,831 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 20:14:55,504 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-25 20:16:26,559 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-25 20:16:26,758 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 20:16:30,252 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 20:16:30,252 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-25 20:16:30,262 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:16:30 BoogieIcfgContainer [2021-11-25 20:16:30,262 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 20:16:30,265 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 20:16:30,266 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 20:16:30,269 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 20:16:30,270 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 08:14:36" (1/3) ... [2021-11-25 20:16:30,270 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b7f29c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:16:30, skipping insertion in model container [2021-11-25 20:16:30,271 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:14:44" (2/3) ... [2021-11-25 20:16:30,271 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b7f29c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:16:30, skipping insertion in model container [2021-11-25 20:16:30,272 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:16:30" (3/3) ... [2021-11-25 20:16:30,273 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-drivers-clk1_drivers-media-platform-vsp1-vsp1.cil.i [2021-11-25 20:16:30,280 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 20:16:30,280 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-25 20:16:30,365 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 20:16:30,373 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=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-25 20:16:30,374 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-25 20:16:30,475 INFO L276 IsEmpty]: Start isEmpty. Operand has 2790 states, 1738 states have (on average 1.3342922899884926) internal successors, (2319), 1758 states have internal predecessors, (2319), 881 states have call successors, (881), 171 states have call predecessors, (881), 170 states have return successors, (868), 864 states have call predecessors, (868), 868 states have call successors, (868) [2021-11-25 20:16:30,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1126 [2021-11-25 20:16:30,581 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:16:30,583 INFO L514 BasicCegarLoop]: trace histogram [111, 110, 110, 110, 110, 110, 110, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:16:30,585 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:16:30,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:16:30,596 INFO L85 PathProgramCache]: Analyzing trace with hash -627569731, now seen corresponding path program 1 times [2021-11-25 20:16:30,608 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:16:30,608 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917937934] [2021-11-25 20:16:30,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:16:30,610 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:16:31,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:16:33,111 INFO L134 CoverageAnalysis]: Checked inductivity of 48183 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48183 trivial. 0 not checked. [2021-11-25 20:16:33,112 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:16:33,112 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917937934] [2021-11-25 20:16:33,113 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917937934] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:16:33,113 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:16:33,114 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 20:16:33,116 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853425036] [2021-11-25 20:16:33,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:16:33,126 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:16:33,127 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:16:33,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:16:33,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:16:33,170 INFO L87 Difference]: Start difference. First operand has 2790 states, 1738 states have (on average 1.3342922899884926) internal successors, (2319), 1758 states have internal predecessors, (2319), 881 states have call successors, (881), 171 states have call predecessors, (881), 170 states have return successors, (868), 864 states have call predecessors, (868), 868 states have call successors, (868) Second operand has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 3 states have call successors, (117), 2 states have call predecessors, (117), 1 states have return successors, (115), 3 states have call predecessors, (115), 3 states have call successors, (115) [2021-11-25 20:16:36,817 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-25 20:16:40,767 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:16:42,863 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:16:44,910 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:16:46,967 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:16:50,130 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:16:51,911 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:16:52,983 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:16:54,648 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:16:57,603 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:16:59,759 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:17:02,082 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:17:06,195 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:17:08,082 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:17:10,366 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:17:11,796 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:17:13,469 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:17:14,517 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:17:15,530 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:17:17,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:17:17,552 INFO L93 Difference]: Finished difference Result 7798 states and 11382 transitions. [2021-11-25 20:17:17,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:17:17,555 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 3 states have call successors, (117), 2 states have call predecessors, (117), 1 states have return successors, (115), 3 states have call predecessors, (115), 3 states have call successors, (115) Word has length 1125 [2021-11-25 20:17:17,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:17:17,676 INFO L225 Difference]: With dead ends: 7798 [2021-11-25 20:17:17,676 INFO L226 Difference]: Without dead ends: 5211 [2021-11-25 20:17:17,710 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:17:17,715 INFO L933 BasicCegarLoop]: 4198 mSDtfsCounter, 3573 mSDsluCounter, 3961 mSDsCounter, 0 mSdLazyCounter, 1174 mSolverCounterSat, 22 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 42.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3583 SdHoareTripleChecker+Valid, 7629 SdHoareTripleChecker+Invalid, 1203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 1174 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 43.7s IncrementalHoareTripleChecker+Time [2021-11-25 20:17:17,716 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3583 Valid, 7629 Invalid, 1203 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [22 Valid, 1174 Invalid, 7 Unknown, 0 Unchecked, 43.7s Time] [2021-11-25 20:17:17,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5211 states. [2021-11-25 20:17:18,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5211 to 5209. [2021-11-25 20:17:18,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5209 states, 3293 states have (on average 1.3382933495293046) internal successors, (4407), 3333 states have internal predecessors, (4407), 1580 states have call successors, (1580), 336 states have call predecessors, (1580), 335 states have return successors, (1584), 1567 states have call predecessors, (1584), 1576 states have call successors, (1584) [2021-11-25 20:17:18,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5209 states to 5209 states and 7571 transitions. [2021-11-25 20:17:18,438 INFO L78 Accepts]: Start accepts. Automaton has 5209 states and 7571 transitions. Word has length 1125 [2021-11-25 20:17:18,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:17:18,449 INFO L470 AbstractCegarLoop]: Abstraction has 5209 states and 7571 transitions. [2021-11-25 20:17:18,450 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 3 states have call successors, (117), 2 states have call predecessors, (117), 1 states have return successors, (115), 3 states have call predecessors, (115), 3 states have call successors, (115) [2021-11-25 20:17:18,452 INFO L276 IsEmpty]: Start isEmpty. Operand 5209 states and 7571 transitions. [2021-11-25 20:17:18,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1182 [2021-11-25 20:17:18,578 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:17:18,579 INFO L514 BasicCegarLoop]: trace histogram [114, 110, 110, 110, 110, 110, 110, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:17:18,579 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-25 20:17:18,580 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:17:18,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:17:18,585 INFO L85 PathProgramCache]: Analyzing trace with hash 1166864898, now seen corresponding path program 1 times [2021-11-25 20:17:18,585 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:17:18,587 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894315733] [2021-11-25 20:17:18,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:17:18,587 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:17:19,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:17:21,418 INFO L134 CoverageAnalysis]: Checked inductivity of 48886 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48886 trivial. 0 not checked. [2021-11-25 20:17:21,419 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:17:21,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894315733] [2021-11-25 20:17:21,420 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [894315733] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:17:21,422 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:17:21,422 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 20:17:21,423 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277679133] [2021-11-25 20:17:21,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:17:21,429 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 20:17:21,430 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:17:21,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 20:17:21,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:17:21,432 INFO L87 Difference]: Start difference. First operand 5209 states and 7571 transitions. Second operand has 5 states, 5 states have (on average 31.6) internal successors, (158), 4 states have internal predecessors, (158), 2 states have call successors, (123), 3 states have call predecessors, (123), 1 states have return successors, (121), 2 states have call predecessors, (121), 2 states have call successors, (121) [2021-11-25 20:17:32,426 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:17:35,536 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:17:37,593 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:17:39,635 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:17:44,834 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:17:47,414 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:17:48,594 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:17:56,100 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:17:57,276 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:18:02,638 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:18:04,763 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:18:08,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:18:08,634 INFO L93 Difference]: Finished difference Result 5251 states and 7615 transitions. [2021-11-25 20:18:08,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-25 20:18:08,636 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.6) internal successors, (158), 4 states have internal predecessors, (158), 2 states have call successors, (123), 3 states have call predecessors, (123), 1 states have return successors, (121), 2 states have call predecessors, (121), 2 states have call successors, (121) Word has length 1181 [2021-11-25 20:18:08,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:18:08,702 INFO L225 Difference]: With dead ends: 5251 [2021-11-25 20:18:08,702 INFO L226 Difference]: Without dead ends: 5249 [2021-11-25 20:18:08,707 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-25 20:18:08,709 INFO L933 BasicCegarLoop]: 3465 mSDtfsCounter, 3746 mSDsluCounter, 8090 mSDsCounter, 0 mSdLazyCounter, 1692 mSolverCounterSat, 1 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 45.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3755 SdHoareTripleChecker+Valid, 10429 SdHoareTripleChecker+Invalid, 1699 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1692 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 46.7s IncrementalHoareTripleChecker+Time [2021-11-25 20:18:08,712 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3755 Valid, 10429 Invalid, 1699 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1692 Invalid, 6 Unknown, 0 Unchecked, 46.7s Time] [2021-11-25 20:18:08,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5249 states. [2021-11-25 20:18:09,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5249 to 5249. [2021-11-25 20:18:09,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5249 states, 3316 states have (on average 1.3365500603136309) internal successors, (4432), 3361 states have internal predecessors, (4432), 1585 states have call successors, (1585), 343 states have call predecessors, (1585), 347 states have return successors, (1596), 1572 states have call predecessors, (1596), 1581 states have call successors, (1596) [2021-11-25 20:18:09,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5249 states to 5249 states and 7613 transitions. [2021-11-25 20:18:09,129 INFO L78 Accepts]: Start accepts. Automaton has 5249 states and 7613 transitions. Word has length 1181 [2021-11-25 20:18:09,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:18:09,134 INFO L470 AbstractCegarLoop]: Abstraction has 5249 states and 7613 transitions. [2021-11-25 20:18:09,135 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.6) internal successors, (158), 4 states have internal predecessors, (158), 2 states have call successors, (123), 3 states have call predecessors, (123), 1 states have return successors, (121), 2 states have call predecessors, (121), 2 states have call successors, (121) [2021-11-25 20:18:09,136 INFO L276 IsEmpty]: Start isEmpty. Operand 5249 states and 7613 transitions. [2021-11-25 20:18:09,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1187 [2021-11-25 20:18:09,176 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:18:09,177 INFO L514 BasicCegarLoop]: trace histogram [114, 110, 110, 110, 110, 110, 110, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:18:09,177 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-25 20:18:09,177 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:18:09,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:18:09,179 INFO L85 PathProgramCache]: Analyzing trace with hash 312180044, now seen corresponding path program 1 times [2021-11-25 20:18:09,179 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:18:09,180 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641570800] [2021-11-25 20:18:09,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:18:09,181 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:18:09,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:18:11,260 INFO L134 CoverageAnalysis]: Checked inductivity of 48888 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 48886 trivial. 0 not checked. [2021-11-25 20:18:11,260 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:18:11,260 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641570800] [2021-11-25 20:18:11,260 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [641570800] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:18:11,261 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:18:11,261 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 20:18:11,261 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177620722] [2021-11-25 20:18:11,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:18:11,263 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 20:18:11,263 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:18:11,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 20:18:11,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:18:11,265 INFO L87 Difference]: Start difference. First operand 5249 states and 7613 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (124), 3 states have call predecessors, (124), 1 states have return successors, (122), 2 states have call predecessors, (122), 2 states have call successors, (122) [2021-11-25 20:18:16,053 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-25 20:18:24,244 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:18:25,819 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:18:27,864 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:18:29,915 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:18:31,953 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:18:34,611 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:18:37,349 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:18:39,206 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:18:42,319 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:18:43,838 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:18:45,286 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:18:46,440 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:18:47,517 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:18:49,583 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:18:50,910 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:18:52,504 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:18:53,631 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:18:57,537 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:18:59,695 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:19:03,032 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-25 20:19:05,502 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:19:10,724 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:19:12,583 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:19:14,807 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:19:18,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:19:18,310 INFO L93 Difference]: Finished difference Result 10203 states and 14945 transitions. [2021-11-25 20:19:18,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-25 20:19:18,312 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (124), 3 states have call predecessors, (124), 1 states have return successors, (122), 2 states have call predecessors, (122), 2 states have call successors, (122) Word has length 1186 [2021-11-25 20:19:18,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:19:18,423 INFO L225 Difference]: With dead ends: 10203 [2021-11-25 20:19:18,424 INFO L226 Difference]: Without dead ends: 10199 [2021-11-25 20:19:18,434 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-25 20:19:18,435 INFO L933 BasicCegarLoop]: 4292 mSDtfsCounter, 3760 mSDsluCounter, 13392 mSDsCounter, 0 mSdLazyCounter, 2234 mSolverCounterSat, 4 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 63.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3772 SdHoareTripleChecker+Valid, 16020 SdHoareTripleChecker+Invalid, 2247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2234 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 66.4s IncrementalHoareTripleChecker+Time [2021-11-25 20:19:18,436 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3772 Valid, 16020 Invalid, 2247 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4 Valid, 2234 Invalid, 9 Unknown, 0 Unchecked, 66.4s Time] [2021-11-25 20:19:18,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10199 states. [2021-11-25 20:19:19,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10199 to 10188. [2021-11-25 20:19:19,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10188 states, 6469 states have (on average 1.3436388931828722) internal successors, (8692), 6560 states have internal predecessors, (8692), 3039 states have call successors, (3039), 679 states have call predecessors, (3039), 679 states have return successors, (3198), 3002 states have call predecessors, (3198), 3031 states have call successors, (3198) [2021-11-25 20:19:19,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10188 states to 10188 states and 14929 transitions. [2021-11-25 20:19:19,217 INFO L78 Accepts]: Start accepts. Automaton has 10188 states and 14929 transitions. Word has length 1186 [2021-11-25 20:19:19,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:19:19,220 INFO L470 AbstractCegarLoop]: Abstraction has 10188 states and 14929 transitions. [2021-11-25 20:19:19,220 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (124), 3 states have call predecessors, (124), 1 states have return successors, (122), 2 states have call predecessors, (122), 2 states have call successors, (122) [2021-11-25 20:19:19,220 INFO L276 IsEmpty]: Start isEmpty. Operand 10188 states and 14929 transitions. [2021-11-25 20:19:19,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1193 [2021-11-25 20:19:19,272 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:19:19,273 INFO L514 BasicCegarLoop]: trace histogram [114, 110, 110, 110, 110, 110, 110, 5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:19:19,273 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-25 20:19:19,273 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:19:19,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:19:19,275 INFO L85 PathProgramCache]: Analyzing trace with hash -706654011, now seen corresponding path program 1 times [2021-11-25 20:19:19,275 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:19:19,275 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138193945] [2021-11-25 20:19:19,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:19:19,276 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:19:19,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:19:21,046 INFO L134 CoverageAnalysis]: Checked inductivity of 48895 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 48891 trivial. 0 not checked. [2021-11-25 20:19:21,047 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:19:21,047 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138193945] [2021-11-25 20:19:21,047 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [138193945] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:19:21,047 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:19:21,048 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 20:19:21,048 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64452976] [2021-11-25 20:19:21,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:19:21,050 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 20:19:21,050 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:19:21,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 20:19:21,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:19:21,051 INFO L87 Difference]: Start difference. First operand 10188 states and 14929 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (125), 3 states have call predecessors, (125), 1 states have return successors, (123), 2 states have call predecessors, (123), 2 states have call successors, (123) [2021-11-25 20:19:25,545 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-25 20:19:31,886 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:19:35,596 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:19:37,024 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:19:38,271 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:19:39,754 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:19:41,795 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:19:46,461 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:19:49,409 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:19:50,438 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:19:52,542 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:19:54,569 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:19:55,817 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:20:02,406 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:20:04,281 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:20:06,313 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:20:08,415 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:20:14,077 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:20:20,011 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:20:22,559 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:20:25,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:20:25,247 INFO L93 Difference]: Finished difference Result 20059 states and 29591 transitions. [2021-11-25 20:20:25,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-25 20:20:25,248 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (125), 3 states have call predecessors, (125), 1 states have return successors, (123), 2 states have call predecessors, (123), 2 states have call successors, (123) Word has length 1192 [2021-11-25 20:20:25,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:20:25,439 INFO L225 Difference]: With dead ends: 20059 [2021-11-25 20:20:25,440 INFO L226 Difference]: Without dead ends: 20025 [2021-11-25 20:20:25,447 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-25 20:20:25,448 INFO L933 BasicCegarLoop]: 4214 mSDtfsCounter, 3742 mSDsluCounter, 13243 mSDsCounter, 0 mSdLazyCounter, 2231 mSolverCounterSat, 3 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 61.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3752 SdHoareTripleChecker+Valid, 15794 SdHoareTripleChecker+Invalid, 2242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2231 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 63.5s IncrementalHoareTripleChecker+Time [2021-11-25 20:20:25,449 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3752 Valid, 15794 Invalid, 2242 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 2231 Invalid, 8 Unknown, 0 Unchecked, 63.5s Time] [2021-11-25 20:20:25,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20025 states. [2021-11-25 20:20:26,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20025 to 20016. [2021-11-25 20:20:26,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20016 states, 12749 states have (on average 1.3468507333908541) internal successors, (17171), 12929 states have internal predecessors, (17171), 5920 states have call successors, (5920), 1349 states have call predecessors, (5920), 1346 states have return successors, (6450), 5845 states have call predecessors, (6450), 5908 states have call successors, (6450) [2021-11-25 20:20:26,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20016 states to 20016 states and 29541 transitions. [2021-11-25 20:20:26,551 INFO L78 Accepts]: Start accepts. Automaton has 20016 states and 29541 transitions. Word has length 1192 [2021-11-25 20:20:26,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:20:26,552 INFO L470 AbstractCegarLoop]: Abstraction has 20016 states and 29541 transitions. [2021-11-25 20:20:26,553 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (125), 3 states have call predecessors, (125), 1 states have return successors, (123), 2 states have call predecessors, (123), 2 states have call successors, (123) [2021-11-25 20:20:26,553 INFO L276 IsEmpty]: Start isEmpty. Operand 20016 states and 29541 transitions. [2021-11-25 20:20:26,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1235 [2021-11-25 20:20:26,646 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:20:26,646 INFO L514 BasicCegarLoop]: trace histogram [116, 110, 110, 110, 110, 110, 110, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:20:26,647 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-25 20:20:26,647 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:20:26,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:20:26,648 INFO L85 PathProgramCache]: Analyzing trace with hash 1605199298, now seen corresponding path program 1 times [2021-11-25 20:20:26,648 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:20:26,648 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130762081] [2021-11-25 20:20:26,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:20:26,649 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:20:27,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:20:27,936 INFO L134 CoverageAnalysis]: Checked inductivity of 49355 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 49345 trivial. 0 not checked. [2021-11-25 20:20:27,936 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:20:27,936 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130762081] [2021-11-25 20:20:27,936 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [130762081] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:20:27,936 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:20:27,937 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 20:20:27,937 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215758643] [2021-11-25 20:20:27,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:20:27,939 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:20:27,939 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:20:27,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:20:27,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:20:27,940 INFO L87 Difference]: Start difference. First operand 20016 states and 29541 transitions. Second operand has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 3 states have internal predecessors, (191), 3 states have call successors, (132), 2 states have call predecessors, (132), 1 states have return successors, (130), 3 states have call predecessors, (130), 3 states have call successors, (130) [2021-11-25 20:20:33,889 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:20:35,261 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:20:37,310 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:20:41,084 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:20:42,629 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:20:43,765 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:20:48,449 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:20:52,845 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:20:54,943 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:20:57,221 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:21:02,391 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-25 20:21:04,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:21:04,877 INFO L93 Difference]: Finished difference Result 58676 states and 86306 transitions. [2021-11-25 20:21:04,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:21:04,878 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 3 states have internal predecessors, (191), 3 states have call successors, (132), 2 states have call predecessors, (132), 1 states have return successors, (130), 3 states have call predecessors, (130), 3 states have call successors, (130) Word has length 1234 [2021-11-25 20:21:04,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:21:05,136 INFO L225 Difference]: With dead ends: 58676 [2021-11-25 20:21:05,136 INFO L226 Difference]: Without dead ends: 38881 [2021-11-25 20:21:05,250 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:21:05,251 INFO L933 BasicCegarLoop]: 4167 mSDtfsCounter, 3433 mSDsluCounter, 3932 mSDsCounter, 0 mSdLazyCounter, 1193 mSolverCounterSat, 29 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3444 SdHoareTripleChecker+Valid, 7577 SdHoareTripleChecker+Invalid, 1229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1193 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 35.8s IncrementalHoareTripleChecker+Time [2021-11-25 20:21:05,252 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3444 Valid, 7577 Invalid, 1229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1193 Invalid, 7 Unknown, 0 Unchecked, 35.8s Time] [2021-11-25 20:21:05,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38881 states. [2021-11-25 20:21:07,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38881 to 38815. [2021-11-25 20:21:07,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38815 states, 24709 states have (on average 1.3416164150714314) internal successors, (33150), 25082 states have internal predecessors, (33150), 11444 states have call successors, (11444), 2668 states have call predecessors, (11444), 2661 states have return successors, (12212), 11280 states have call predecessors, (12212), 11432 states have call successors, (12212) [2021-11-25 20:21:07,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38815 states to 38815 states and 56806 transitions. [2021-11-25 20:21:07,553 INFO L78 Accepts]: Start accepts. Automaton has 38815 states and 56806 transitions. Word has length 1234 [2021-11-25 20:21:07,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:21:07,554 INFO L470 AbstractCegarLoop]: Abstraction has 38815 states and 56806 transitions. [2021-11-25 20:21:07,555 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 3 states have internal predecessors, (191), 3 states have call successors, (132), 2 states have call predecessors, (132), 1 states have return successors, (130), 3 states have call predecessors, (130), 3 states have call successors, (130) [2021-11-25 20:21:07,555 INFO L276 IsEmpty]: Start isEmpty. Operand 38815 states and 56806 transitions. [2021-11-25 20:21:07,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1246 [2021-11-25 20:21:07,938 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:21:07,939 INFO L514 BasicCegarLoop]: trace histogram [116, 110, 110, 110, 110, 110, 110, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:21:07,939 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-25 20:21:07,939 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:21:07,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:21:07,940 INFO L85 PathProgramCache]: Analyzing trace with hash 1009903134, now seen corresponding path program 1 times [2021-11-25 20:21:07,940 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:21:07,941 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011576839] [2021-11-25 20:21:07,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:21:07,941 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:21:08,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:21:09,003 INFO L134 CoverageAnalysis]: Checked inductivity of 49354 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 49345 trivial. 0 not checked. [2021-11-25 20:21:09,004 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:21:09,004 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1011576839] [2021-11-25 20:21:09,004 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1011576839] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:21:09,004 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:21:09,005 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 20:21:09,005 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814154924] [2021-11-25 20:21:09,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:21:09,007 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:21:09,007 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:21:09,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:21:09,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:21:09,009 INFO L87 Difference]: Start difference. First operand 38815 states and 56806 transitions. Second operand has 3 states, 3 states have (on average 67.33333333333333) internal successors, (202), 3 states have internal predecessors, (202), 3 states have call successors, (132), 2 states have call predecessors, (132), 1 states have return successors, (130), 3 states have call predecessors, (130), 3 states have call successors, (130) [2021-11-25 20:21:12,549 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:21:14,620 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:21:16,113 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:21:18,154 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:21:21,272 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:21:22,903 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:21:23,915 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:21:25,609 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:21:27,450 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:21:29,482 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:21:31,652 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:21:34,177 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-25 20:21:39,702 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:21:41,376 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:21:42,603 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:21:47,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:21:47,662 INFO L93 Difference]: Finished difference Result 95538 states and 139584 transitions. [2021-11-25 20:21:47,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:21:47,667 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 67.33333333333333) internal successors, (202), 3 states have internal predecessors, (202), 3 states have call successors, (132), 2 states have call predecessors, (132), 1 states have return successors, (130), 3 states have call predecessors, (130), 3 states have call successors, (130) Word has length 1245 [2021-11-25 20:21:47,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:21:48,005 INFO L225 Difference]: With dead ends: 95538 [2021-11-25 20:21:48,006 INFO L226 Difference]: Without dead ends: 56944 [2021-11-25 20:21:48,345 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:21:48,347 INFO L933 BasicCegarLoop]: 4197 mSDtfsCounter, 3521 mSDsluCounter, 3972 mSDsCounter, 0 mSdLazyCounter, 1149 mSolverCounterSat, 12 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3532 SdHoareTripleChecker+Valid, 7634 SdHoareTripleChecker+Invalid, 1167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1149 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36.9s IncrementalHoareTripleChecker+Time [2021-11-25 20:21:48,347 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3532 Valid, 7634 Invalid, 1167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1149 Invalid, 6 Unknown, 0 Unchecked, 36.9s Time] [2021-11-25 20:21:48,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56944 states. [2021-11-25 20:21:51,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56944 to 56882. [2021-11-25 20:21:51,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56882 states, 36216 states have (on average 1.3383311243649216) internal successors, (48469), 36753 states have internal predecessors, (48469), 16723 states have call successors, (16723), 3953 states have call predecessors, (16723), 3942 states have return successors, (17695), 16475 states have call predecessors, (17695), 16711 states have call successors, (17695) [2021-11-25 20:21:51,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56882 states to 56882 states and 82887 transitions. [2021-11-25 20:21:51,380 INFO L78 Accepts]: Start accepts. Automaton has 56882 states and 82887 transitions. Word has length 1245 [2021-11-25 20:21:51,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:21:51,382 INFO L470 AbstractCegarLoop]: Abstraction has 56882 states and 82887 transitions. [2021-11-25 20:21:51,382 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 67.33333333333333) internal successors, (202), 3 states have internal predecessors, (202), 3 states have call successors, (132), 2 states have call predecessors, (132), 1 states have return successors, (130), 3 states have call predecessors, (130), 3 states have call successors, (130) [2021-11-25 20:21:51,382 INFO L276 IsEmpty]: Start isEmpty. Operand 56882 states and 82887 transitions. [2021-11-25 20:21:51,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1253 [2021-11-25 20:21:51,897 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:21:51,898 INFO L514 BasicCegarLoop]: trace histogram [117, 110, 110, 110, 110, 110, 110, 6, 6, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:21:51,898 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-25 20:21:51,899 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:21:51,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:21:51,900 INFO L85 PathProgramCache]: Analyzing trace with hash 1201415834, now seen corresponding path program 1 times [2021-11-25 20:21:51,900 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:21:51,900 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067223142] [2021-11-25 20:21:51,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:21:51,900 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:21:52,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:21:52,884 INFO L134 CoverageAnalysis]: Checked inductivity of 49613 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 49599 trivial. 0 not checked. [2021-11-25 20:21:52,884 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:21:52,885 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067223142] [2021-11-25 20:21:52,885 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2067223142] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:21:52,885 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:21:52,885 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 20:21:52,886 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928320750] [2021-11-25 20:21:52,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:21:52,887 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:21:52,888 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:21:52,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:21:52,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:21:52,889 INFO L87 Difference]: Start difference. First operand 56882 states and 82887 transitions. Second operand has 3 states, 3 states have (on average 66.66666666666667) internal successors, (200), 3 states have internal predecessors, (200), 3 states have call successors, (133), 2 states have call predecessors, (133), 1 states have return successors, (131), 3 states have call predecessors, (131), 3 states have call successors, (131) [2021-11-25 20:21:58,767 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:22:00,486 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:22:02,539 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:22:03,917 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:22:06,130 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:22:07,395 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:22:08,760 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:22:09,788 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:22:11,812 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:22:13,924 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:22:18,968 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:22:20,994 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:22:26,490 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:22:27,601 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:22:32,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:22:32,169 INFO L93 Difference]: Finished difference Result 138142 states and 201309 transitions. [2021-11-25 20:22:32,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:22:32,170 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 66.66666666666667) internal successors, (200), 3 states have internal predecessors, (200), 3 states have call successors, (133), 2 states have call predecessors, (133), 1 states have return successors, (131), 3 states have call predecessors, (131), 3 states have call successors, (131) Word has length 1252 [2021-11-25 20:22:32,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:22:32,637 INFO L225 Difference]: With dead ends: 138142 [2021-11-25 20:22:32,637 INFO L226 Difference]: Without dead ends: 81481 [2021-11-25 20:22:32,863 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:22:32,865 INFO L933 BasicCegarLoop]: 4879 mSDtfsCounter, 3596 mSDsluCounter, 3981 mSDsCounter, 0 mSdLazyCounter, 1311 mSolverCounterSat, 13 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3602 SdHoareTripleChecker+Valid, 8316 SdHoareTripleChecker+Invalid, 1329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1311 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36.6s IncrementalHoareTripleChecker+Time [2021-11-25 20:22:32,865 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3602 Valid, 8316 Invalid, 1329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1311 Invalid, 5 Unknown, 0 Unchecked, 36.6s Time] [2021-11-25 20:22:33,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81481 states. [2021-11-25 20:22:35,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81481 to 81417. [2021-11-25 20:22:36,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81417 states, 51955 states have (on average 1.3396400731402176) internal successors, (69601), 52755 states have internal predecessors, (69601), 23726 states have call successors, (23726), 5766 states have call predecessors, (23726), 5735 states have return successors, (25142), 23321 states have call predecessors, (25142), 23714 states have call successors, (25142) [2021-11-25 20:22:36,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81417 states to 81417 states and 118469 transitions. [2021-11-25 20:22:36,859 INFO L78 Accepts]: Start accepts. Automaton has 81417 states and 118469 transitions. Word has length 1252 [2021-11-25 20:22:36,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:22:36,861 INFO L470 AbstractCegarLoop]: Abstraction has 81417 states and 118469 transitions. [2021-11-25 20:22:36,861 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.66666666666667) internal successors, (200), 3 states have internal predecessors, (200), 3 states have call successors, (133), 2 states have call predecessors, (133), 1 states have return successors, (131), 3 states have call predecessors, (131), 3 states have call successors, (131) [2021-11-25 20:22:36,862 INFO L276 IsEmpty]: Start isEmpty. Operand 81417 states and 118469 transitions. [2021-11-25 20:22:37,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1259 [2021-11-25 20:22:37,298 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:22:37,299 INFO L514 BasicCegarLoop]: trace histogram [117, 110, 110, 110, 110, 110, 110, 7, 7, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:22:37,300 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-25 20:22:37,300 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:22:37,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:22:37,301 INFO L85 PathProgramCache]: Analyzing trace with hash -1189716748, now seen corresponding path program 1 times [2021-11-25 20:22:37,301 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:22:37,301 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561164463] [2021-11-25 20:22:37,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:22:37,302 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:22:37,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:22:38,253 INFO L134 CoverageAnalysis]: Checked inductivity of 49632 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 49610 trivial. 0 not checked. [2021-11-25 20:22:38,253 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:22:38,254 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561164463] [2021-11-25 20:22:38,254 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561164463] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:22:38,254 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:22:38,255 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 20:22:38,255 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767785824] [2021-11-25 20:22:38,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:22:38,257 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:22:38,257 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:22:38,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:22:38,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:22:38,259 INFO L87 Difference]: Start difference. First operand 81417 states and 118469 transitions. Second operand has 3 states, 3 states have (on average 68.0) internal successors, (204), 3 states have internal predecessors, (204), 3 states have call successors, (135), 2 states have call predecessors, (135), 1 states have return successors, (133), 3 states have call predecessors, (133), 3 states have call successors, (133) [2021-11-25 20:22:44,820 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:22:45,890 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:22:47,919 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:22:49,964 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:22:52,016 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:22:53,683 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:22:56,283 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:22:59,385 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:23:00,861 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:23:02,122 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:23:03,283 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:23:05,176 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:23:06,318 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:23:08,189 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:23:10,215 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:23:12,322 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:23:16,269 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-25 20:23:19,877 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:23:21,595 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:23:22,823 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:23:24,028 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:23:25,202 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:23:31,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:23:31,696 INFO L93 Difference]: Finished difference Result 191754 states and 279522 transitions. [2021-11-25 20:23:31,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:23:31,697 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 68.0) internal successors, (204), 3 states have internal predecessors, (204), 3 states have call successors, (135), 2 states have call predecessors, (135), 1 states have return successors, (133), 3 states have call predecessors, (133), 3 states have call successors, (133) Word has length 1258 [2021-11-25 20:23:31,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:23:32,427 INFO L225 Difference]: With dead ends: 191754 [2021-11-25 20:23:32,427 INFO L226 Difference]: Without dead ends: 117348 [2021-11-25 20:23:32,645 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:23:32,646 INFO L933 BasicCegarLoop]: 5886 mSDtfsCounter, 3580 mSDsluCounter, 3979 mSDsCounter, 0 mSdLazyCounter, 1565 mSolverCounterSat, 11 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 48.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3592 SdHoareTripleChecker+Valid, 9324 SdHoareTripleChecker+Invalid, 1583 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1565 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 49.9s IncrementalHoareTripleChecker+Time [2021-11-25 20:23:32,647 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3592 Valid, 9324 Invalid, 1583 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1565 Invalid, 7 Unknown, 0 Unchecked, 49.9s Time] [2021-11-25 20:23:32,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117348 states. [2021-11-25 20:23:36,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117348 to 117280. [2021-11-25 20:23:37,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117280 states, 74882 states have (on average 1.3402953980929997) internal successors, (100364), 76047 states have internal predecessors, (100364), 34142 states have call successors, (34142), 8310 states have call predecessors, (34142), 8255 states have return successors, (36245), 33540 states have call predecessors, (36245), 34130 states have call successors, (36245) [2021-11-25 20:23:38,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117280 states to 117280 states and 170751 transitions. [2021-11-25 20:23:38,225 INFO L78 Accepts]: Start accepts. Automaton has 117280 states and 170751 transitions. Word has length 1258 [2021-11-25 20:23:38,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:23:38,226 INFO L470 AbstractCegarLoop]: Abstraction has 117280 states and 170751 transitions. [2021-11-25 20:23:38,227 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 68.0) internal successors, (204), 3 states have internal predecessors, (204), 3 states have call successors, (135), 2 states have call predecessors, (135), 1 states have return successors, (133), 3 states have call predecessors, (133), 3 states have call successors, (133) [2021-11-25 20:23:38,227 INFO L276 IsEmpty]: Start isEmpty. Operand 117280 states and 170751 transitions. [2021-11-25 20:23:38,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1276 [2021-11-25 20:23:38,348 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:23:38,349 INFO L514 BasicCegarLoop]: trace histogram [117, 110, 110, 110, 110, 110, 110, 6, 6, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:23:38,350 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-25 20:23:38,350 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:23:38,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:23:38,351 INFO L85 PathProgramCache]: Analyzing trace with hash 329239246, now seen corresponding path program 1 times [2021-11-25 20:23:38,351 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:23:38,351 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200226281] [2021-11-25 20:23:38,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:23:38,352 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:23:38,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:23:39,703 INFO L134 CoverageAnalysis]: Checked inductivity of 49631 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 49611 trivial. 0 not checked. [2021-11-25 20:23:39,703 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:23:39,704 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [200226281] [2021-11-25 20:23:39,704 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [200226281] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:23:39,704 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:23:39,704 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 20:23:39,704 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863162320] [2021-11-25 20:23:39,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:23:39,706 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:23:39,707 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:23:39,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:23:39,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:23:39,708 INFO L87 Difference]: Start difference. First operand 117280 states and 170751 transitions. Second operand has 3 states, 3 states have (on average 68.66666666666667) internal successors, (206), 3 states have internal predecessors, (206), 3 states have call successors, (134), 2 states have call predecessors, (134), 1 states have return successors, (132), 3 states have call predecessors, (132), 3 states have call successors, (132) [2021-11-25 20:23:48,668 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:23:50,726 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:23:52,771 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:23:55,314 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:23:59,650 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:24:01,552 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:24:02,983 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:24:04,017 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:24:06,046 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:24:08,162 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:24:10,568 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:24:13,731 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-25 20:24:19,698 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:24:22,139 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:24:23,162 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:24:24,249 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:24:25,586 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:24:32,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:24:32,944 INFO L93 Difference]: Finished difference Result 279666 states and 407473 transitions. [2021-11-25 20:24:32,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:24:32,951 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 68.66666666666667) internal successors, (206), 3 states have internal predecessors, (206), 3 states have call successors, (134), 2 states have call predecessors, (134), 1 states have return successors, (132), 3 states have call predecessors, (132), 3 states have call successors, (132) Word has length 1275 [2021-11-25 20:24:32,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:24:33,968 INFO L225 Difference]: With dead ends: 279666 [2021-11-25 20:24:33,968 INFO L226 Difference]: Without dead ends: 169397 [2021-11-25 20:24:34,556 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:24:34,556 INFO L933 BasicCegarLoop]: 6493 mSDtfsCounter, 3550 mSDsluCounter, 3970 mSDsCounter, 0 mSdLazyCounter, 1671 mSolverCounterSat, 9 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 46.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3558 SdHoareTripleChecker+Valid, 9928 SdHoareTripleChecker+Invalid, 1688 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1671 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 48.0s IncrementalHoareTripleChecker+Time [2021-11-25 20:24:34,557 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3558 Valid, 9928 Invalid, 1688 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1671 Invalid, 8 Unknown, 0 Unchecked, 48.0s Time] [2021-11-25 20:24:34,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169397 states. [2021-11-25 20:24:41,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169397 to 169307. [2021-11-25 20:24:41,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169307 states, 108141 states have (on average 1.3403704422929323) internal successors, (144949), 109837 states have internal predecessors, (144949), 49206 states have call successors, (49206), 12044 states have call predecessors, (49206), 11959 states have return successors, (52203), 48307 states have call predecessors, (52203), 49194 states have call successors, (52203) [2021-11-25 20:24:42,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169307 states to 169307 states and 246358 transitions. [2021-11-25 20:24:42,431 INFO L78 Accepts]: Start accepts. Automaton has 169307 states and 246358 transitions. Word has length 1275 [2021-11-25 20:24:42,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:24:42,434 INFO L470 AbstractCegarLoop]: Abstraction has 169307 states and 246358 transitions. [2021-11-25 20:24:42,435 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 68.66666666666667) internal successors, (206), 3 states have internal predecessors, (206), 3 states have call successors, (134), 2 states have call predecessors, (134), 1 states have return successors, (132), 3 states have call predecessors, (132), 3 states have call successors, (132) [2021-11-25 20:24:42,435 INFO L276 IsEmpty]: Start isEmpty. Operand 169307 states and 246358 transitions. [2021-11-25 20:24:42,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1295 [2021-11-25 20:24:42,560 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:24:42,561 INFO L514 BasicCegarLoop]: trace histogram [119, 111, 111, 111, 111, 111, 111, 6, 6, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:24:42,561 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-25 20:24:42,561 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:24:42,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:24:42,562 INFO L85 PathProgramCache]: Analyzing trace with hash -1524431553, now seen corresponding path program 1 times [2021-11-25 20:24:42,563 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:24:42,563 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291786057] [2021-11-25 20:24:42,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:24:42,563 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:24:42,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:24:43,398 INFO L134 CoverageAnalysis]: Checked inductivity of 50734 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 50726 trivial. 0 not checked. [2021-11-25 20:24:43,398 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:24:43,398 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [291786057] [2021-11-25 20:24:43,398 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [291786057] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:24:43,399 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:24:43,399 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 20:24:43,399 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616049970] [2021-11-25 20:24:43,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:24:43,402 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:24:43,402 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:24:43,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:24:43,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:24:43,403 INFO L87 Difference]: Start difference. First operand 169307 states and 246358 transitions. Second operand has 3 states, 3 states have (on average 75.0) internal successors, (225), 3 states have internal predecessors, (225), 3 states have call successors, (137), 2 states have call predecessors, (137), 1 states have return successors, (135), 3 states have call predecessors, (135), 3 states have call successors, (135) [2021-11-25 20:24:46,453 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-25 20:24:49,671 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:24:51,713 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:24:53,766 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:24:55,813 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:24:56,897 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:24:58,591 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:24:59,971 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:25:01,876 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:25:05,639 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:25:07,761 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:25:12,770 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:25:15,077 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:25:21,485 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-25 20:25:31,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:25:31,644 INFO L93 Difference]: Finished difference Result 490121 states and 713504 transitions. [2021-11-25 20:25:31,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:25:31,645 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 75.0) internal successors, (225), 3 states have internal predecessors, (225), 3 states have call successors, (137), 2 states have call predecessors, (137), 1 states have return successors, (135), 3 states have call predecessors, (135), 3 states have call successors, (135) Word has length 1294 [2021-11-25 20:25:31,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:25:33,954 INFO L225 Difference]: With dead ends: 490121 [2021-11-25 20:25:33,954 INFO L226 Difference]: Without dead ends: 321035 [2021-11-25 20:25:34,825 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:25:34,826 INFO L933 BasicCegarLoop]: 4299 mSDtfsCounter, 3562 mSDsluCounter, 3989 mSDsCounter, 0 mSdLazyCounter, 1151 mSolverCounterSat, 12 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 36.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3571 SdHoareTripleChecker+Valid, 7745 SdHoareTripleChecker+Invalid, 1170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1151 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 38.4s IncrementalHoareTripleChecker+Time [2021-11-25 20:25:34,843 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3571 Valid, 7745 Invalid, 1170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1151 Invalid, 7 Unknown, 0 Unchecked, 38.4s Time] [2021-11-25 20:25:35,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321035 states.