./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-net-ethernet-cadence-macb.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71036dc1-aa88-4ebd-a365-e366d8a8ede9/bin/uautomizer-YU5uOKAj3y/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71036dc1-aa88-4ebd-a365-e366d8a8ede9/bin/uautomizer-YU5uOKAj3y/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71036dc1-aa88-4ebd-a365-e366d8a8ede9/bin/uautomizer-YU5uOKAj3y/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71036dc1-aa88-4ebd-a365-e366d8a8ede9/bin/uautomizer-YU5uOKAj3y/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-ethernet-cadence-macb.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71036dc1-aa88-4ebd-a365-e366d8a8ede9/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71036dc1-aa88-4ebd-a365-e366d8a8ede9/bin/uautomizer-YU5uOKAj3y --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash dc0241e7c40235715d7f33abd33c740b0c60d48c0a8a0992cf99bd2d48b4ffd0 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 17:33:59,426 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 17:33:59,428 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 17:33:59,481 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 17:33:59,481 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 17:33:59,486 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 17:33:59,488 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 17:33:59,492 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 17:33:59,495 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 17:33:59,503 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 17:33:59,505 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 17:33:59,507 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 17:33:59,507 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 17:33:59,511 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 17:33:59,513 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 17:33:59,519 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 17:33:59,521 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 17:33:59,523 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 17:33:59,525 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 17:33:59,535 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 17:33:59,537 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 17:33:59,539 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 17:33:59,541 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 17:33:59,542 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 17:33:59,546 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 17:33:59,546 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 17:33:59,546 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 17:33:59,548 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 17:33:59,548 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 17:33:59,549 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 17:33:59,550 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 17:33:59,551 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 17:33:59,552 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 17:33:59,553 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 17:33:59,554 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 17:33:59,554 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 17:33:59,555 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 17:33:59,555 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 17:33:59,556 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 17:33:59,557 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 17:33:59,558 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 17:33:59,559 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71036dc1-aa88-4ebd-a365-e366d8a8ede9/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-13 17:33:59,601 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 17:33:59,601 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 17:33:59,602 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-13 17:33:59,602 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-13 17:33:59,610 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 17:33:59,610 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 17:33:59,611 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-13 17:33:59,611 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-13 17:33:59,612 INFO L138 SettingsManager]: * Use SBE=true [2021-11-13 17:33:59,612 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 17:33:59,613 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 17:33:59,613 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 17:33:59,614 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 17:33:59,614 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 17:33:59,614 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 17:33:59,614 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 17:33:59,615 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 17:33:59,615 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 17:33:59,615 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 17:33:59,615 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-13 17:33:59,616 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 17:33:59,616 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 17:33:59,616 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 17:33:59,616 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 17:33:59,617 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 17:33:59,617 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-13 17:33:59,617 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 17:33:59,617 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-13 17:33:59,618 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-13 17:33:59,619 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 17:33:59,620 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 17:33:59,620 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71036dc1-aa88-4ebd-a365-e366d8a8ede9/bin/uautomizer-YU5uOKAj3y/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71036dc1-aa88-4ebd-a365-e366d8a8ede9/bin/uautomizer-YU5uOKAj3y Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dc0241e7c40235715d7f33abd33c740b0c60d48c0a8a0992cf99bd2d48b4ffd0 [2021-11-13 17:33:59,890 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 17:33:59,912 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 17:33:59,914 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 17:33:59,916 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 17:33:59,918 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 17:33:59,920 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71036dc1-aa88-4ebd-a365-e366d8a8ede9/bin/uautomizer-YU5uOKAj3y/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-ethernet-cadence-macb.cil.i [2021-11-13 17:34:00,010 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71036dc1-aa88-4ebd-a365-e366d8a8ede9/bin/uautomizer-YU5uOKAj3y/data/a2b571cf1/e8251894786942cab80575240c8ed0f1/FLAG86e2f2f4b [2021-11-13 17:34:00,915 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 17:34:00,916 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71036dc1-aa88-4ebd-a365-e366d8a8ede9/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-ethernet-cadence-macb.cil.i [2021-11-13 17:34:00,960 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71036dc1-aa88-4ebd-a365-e366d8a8ede9/bin/uautomizer-YU5uOKAj3y/data/a2b571cf1/e8251894786942cab80575240c8ed0f1/FLAG86e2f2f4b [2021-11-13 17:34:01,339 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71036dc1-aa88-4ebd-a365-e366d8a8ede9/bin/uautomizer-YU5uOKAj3y/data/a2b571cf1/e8251894786942cab80575240c8ed0f1 [2021-11-13 17:34:01,342 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 17:34:01,343 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 17:34:01,345 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 17:34:01,345 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 17:34:01,348 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 17:34:01,349 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 05:34:01" (1/1) ... [2021-11-13 17:34:01,350 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@dc6a001 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:34:01, skipping insertion in model container [2021-11-13 17:34:01,350 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 05:34:01" (1/1) ... [2021-11-13 17:34:01,357 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 17:34:01,555 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 17:34:04,624 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71036dc1-aa88-4ebd-a365-e366d8a8ede9/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-ethernet-cadence-macb.cil.i[336326,336339] [2021-11-13 17:34:04,654 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 17:34:04,686 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 17:34:05,205 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71036dc1-aa88-4ebd-a365-e366d8a8ede9/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-ethernet-cadence-macb.cil.i[336326,336339] [2021-11-13 17:34:05,241 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 17:34:05,470 INFO L208 MainTranslator]: Completed translation [2021-11-13 17:34:05,470 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:34:05 WrapperNode [2021-11-13 17:34:05,471 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 17:34:05,472 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 17:34:05,472 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 17:34:05,473 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 17:34:05,480 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:34:05" (1/1) ... [2021-11-13 17:34:05,619 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:34:05" (1/1) ... [2021-11-13 17:34:05,845 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 17:34:05,846 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 17:34:05,846 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 17:34:05,846 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 17:34:05,856 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:34:05" (1/1) ... [2021-11-13 17:34:05,856 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:34:05" (1/1) ... [2021-11-13 17:34:05,915 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:34:05" (1/1) ... [2021-11-13 17:34:05,915 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:34:05" (1/1) ... [2021-11-13 17:34:06,126 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:34:05" (1/1) ... [2021-11-13 17:34:06,151 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:34:05" (1/1) ... [2021-11-13 17:34:06,189 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:34:05" (1/1) ... [2021-11-13 17:34:06,219 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 17:34:06,220 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 17:34:06,221 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 17:34:06,221 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 17:34:06,222 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:34:05" (1/1) ... [2021-11-13 17:34:06,230 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 17:34:06,244 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71036dc1-aa88-4ebd-a365-e366d8a8ede9/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:34:06,261 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71036dc1-aa88-4ebd-a365-e366d8a8ede9/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-13 17:34:06,290 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71036dc1-aa88-4ebd-a365-e366d8a8ede9/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-13 17:34:06,310 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-13 17:34:06,313 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-13 17:34:06,313 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2021-11-13 17:34:06,313 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2021-11-13 17:34:06,313 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-13 17:34:06,313 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-13 17:34:06,314 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-13 17:34:06,314 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-13 17:34:06,314 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_netdev_open_9_6 [2021-11-13 17:34:06,314 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_netdev_open_9_6 [2021-11-13 17:34:06,314 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_restore [2021-11-13 17:34:06,314 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_restore [2021-11-13 17:34:06,314 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-13 17:34:06,315 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-13 17:34:06,315 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-11-13 17:34:06,315 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-11-13 17:34:06,315 INFO L130 BoogieDeclarations]: Found specification of procedure macb_set_hwaddr [2021-11-13 17:34:06,315 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_set_hwaddr [2021-11-13 17:34:06,315 INFO L130 BoogieDeclarations]: Found specification of procedure macb_get_regs_len [2021-11-13 17:34:06,315 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_get_regs_len [2021-11-13 17:34:06,316 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-13 17:34:06,316 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-13 17:34:06,316 INFO L130 BoogieDeclarations]: Found specification of procedure macb_probe [2021-11-13 17:34:06,316 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_probe [2021-11-13 17:34:06,316 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-13 17:34:06,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-13 17:34:06,316 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2021-11-13 17:34:06,317 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2021-11-13 17:34:06,317 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-13 17:34:06,317 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-13 17:34:06,317 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-13 17:34:06,317 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-13 17:34:06,317 INFO L130 BoogieDeclarations]: Found specification of procedure arch_irqs_disabled_flags [2021-11-13 17:34:06,317 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_irqs_disabled_flags [2021-11-13 17:34:06,318 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-11-13 17:34:06,318 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-11-13 17:34:06,318 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-13 17:34:06,318 INFO L130 BoogieDeclarations]: Found specification of procedure macb_remove [2021-11-13 17:34:06,319 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_remove [2021-11-13 17:34:06,319 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-11-13 17:34:06,319 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-11-13 17:34:06,319 INFO L130 BoogieDeclarations]: Found specification of procedure eth_change_mtu [2021-11-13 17:34:06,319 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_change_mtu [2021-11-13 17:34:06,319 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-13 17:34:06,320 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-13 17:34:06,320 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-13 17:34:06,320 INFO L130 BoogieDeclarations]: Found specification of procedure __napi_schedule [2021-11-13 17:34:06,320 INFO L138 BoogieDeclarations]: Found implementation of procedure __napi_schedule [2021-11-13 17:34:06,320 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-13 17:34:06,320 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-13 17:34:06,320 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2021-11-13 17:34:06,321 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2021-11-13 17:34:06,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-13 17:34:06,321 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-13 17:34:06,322 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-13 17:34:06,322 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-13 17:34:06,322 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-13 17:34:06,322 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-13 17:34:06,324 INFO L130 BoogieDeclarations]: Found specification of procedure macb_free_consistent [2021-11-13 17:34:06,324 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_free_consistent [2021-11-13 17:34:06,324 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-13 17:34:06,325 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-13 17:34:06,325 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_drivers_clk1__more_at_exit [2021-11-13 17:34:06,325 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_drivers_clk1__more_at_exit [2021-11-13 17:34:06,325 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-13 17:34:06,325 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-13 17:34:06,326 INFO L130 BoogieDeclarations]: Found specification of procedure macb_open [2021-11-13 17:34:06,326 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_open [2021-11-13 17:34:06,326 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-13 17:34:06,326 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-13 17:34:06,326 INFO L130 BoogieDeclarations]: Found specification of procedure macb_alloc_consistent [2021-11-13 17:34:06,326 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_alloc_consistent [2021-11-13 17:34:06,326 INFO L130 BoogieDeclarations]: Found specification of procedure macb_resume [2021-11-13 17:34:06,327 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_resume [2021-11-13 17:34:06,327 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-13 17:34:06,328 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-13 17:34:06,328 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-13 17:34:06,328 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-13 17:34:06,328 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-13 17:34:06,328 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2021-11-13 17:34:06,328 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2021-11-13 17:34:06,328 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_netdev [2021-11-13 17:34:06,329 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_netdev [2021-11-13 17:34:06,329 INFO L130 BoogieDeclarations]: Found specification of procedure macb_is_gem [2021-11-13 17:34:06,329 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_is_gem [2021-11-13 17:34:06,329 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2021-11-13 17:34:06,329 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2021-11-13 17:34:06,329 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-13 17:34:06,329 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-13 17:34:06,330 INFO L130 BoogieDeclarations]: Found specification of procedure macb_rx_ring_wrap [2021-11-13 17:34:06,330 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_rx_ring_wrap [2021-11-13 17:34:06,330 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-13 17:34:06,331 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-13 17:34:06,331 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-13 17:34:06,331 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-13 17:34:06,331 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-13 17:34:06,331 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_drvdata [2021-11-13 17:34:06,332 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_drvdata [2021-11-13 17:34:06,332 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-13 17:34:06,333 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-13 17:34:06,333 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-13 17:34:06,333 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-13 17:34:06,333 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-11-13 17:34:06,333 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-11-13 17:34:06,333 INFO L130 BoogieDeclarations]: Found specification of procedure napi_schedule_prep [2021-11-13 17:34:06,333 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_schedule_prep [2021-11-13 17:34:06,334 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_save_flags [2021-11-13 17:34:06,334 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_save_flags [2021-11-13 17:34:06,334 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 17:34:06,334 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 17:34:06,334 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-11-13 17:34:06,334 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-11-13 17:34:06,335 INFO L130 BoogieDeclarations]: Found specification of procedure mdiobus_free [2021-11-13 17:34:06,335 INFO L138 BoogieDeclarations]: Found implementation of procedure mdiobus_free [2021-11-13 17:34:06,335 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-13 17:34:06,335 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-13 17:34:06,335 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-13 17:34:06,336 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-13 17:34:06,336 INFO L130 BoogieDeclarations]: Found specification of procedure mdiobus_unregister [2021-11-13 17:34:06,337 INFO L138 BoogieDeclarations]: Found implementation of procedure mdiobus_unregister [2021-11-13 17:34:06,339 INFO L130 BoogieDeclarations]: Found specification of procedure phy_find_first [2021-11-13 17:34:06,340 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_find_first [2021-11-13 17:34:06,340 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-11-13 17:34:06,340 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-11-13 17:34:06,342 INFO L130 BoogieDeclarations]: Found specification of procedure macb_tx_ring_wrap [2021-11-13 17:34:06,343 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_tx_ring_wrap [2021-11-13 17:34:06,343 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-13 17:34:06,343 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-13 17:34:06,344 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_netdev_17 [2021-11-13 17:34:06,349 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_netdev_17 [2021-11-13 17:34:06,349 INFO L130 BoogieDeclarations]: Found specification of procedure macb_get_hwaddr [2021-11-13 17:34:06,349 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_get_hwaddr [2021-11-13 17:34:06,349 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-13 17:34:06,349 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-13 17:34:06,350 INFO L130 BoogieDeclarations]: Found specification of procedure macb_handle_link_change [2021-11-13 17:34:06,350 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_handle_link_change [2021-11-13 17:34:06,350 INFO L130 BoogieDeclarations]: Found specification of procedure macb_mii_init [2021-11-13 17:34:06,350 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_mii_init [2021-11-13 17:34:06,350 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_clk_prepare_enable_14 [2021-11-13 17:34:06,350 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_clk_prepare_enable_14 [2021-11-13 17:34:06,350 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_clk_prepare_enable_16 [2021-11-13 17:34:06,350 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_clk_prepare_enable_16 [2021-11-13 17:34:06,351 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_clk_prepare_enable_15 [2021-11-13 17:34:06,351 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_clk_prepare_enable_15 [2021-11-13 17:34:06,351 INFO L130 BoogieDeclarations]: Found specification of procedure macb_close [2021-11-13 17:34:06,351 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_close [2021-11-13 17:34:06,351 INFO L130 BoogieDeclarations]: Found specification of procedure macb_mdc_clk_div [2021-11-13 17:34:06,351 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_mdc_clk_div [2021-11-13 17:34:06,351 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2021-11-13 17:34:06,351 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2021-11-13 17:34:06,352 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-11-13 17:34:06,352 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-11-13 17:34:06,352 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_clk_disable_unprepare_19 [2021-11-13 17:34:06,352 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_clk_disable_unprepare_19 [2021-11-13 17:34:06,352 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 17:34:06,352 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_platdata [2021-11-13 17:34:06,352 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_platdata [2021-11-13 17:34:06,352 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_off [2021-11-13 17:34:06,353 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_off [2021-11-13 17:34:06,353 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-11-13 17:34:06,353 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-11-13 17:34:06,353 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_clk_disable_unprepare_21 [2021-11-13 17:34:06,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_clk_disable_unprepare_21 [2021-11-13 17:34:06,353 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-13 17:34:06,353 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_clk_disable_unprepare_20 [2021-11-13 17:34:06,354 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_clk_disable_unprepare_20 [2021-11-13 17:34:06,354 INFO L130 BoogieDeclarations]: Found specification of procedure clk_get_rate [2021-11-13 17:34:06,354 INFO L138 BoogieDeclarations]: Found implementation of procedure clk_get_rate [2021-11-13 17:34:06,354 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-13 17:34:06,354 INFO L130 BoogieDeclarations]: Found specification of procedure macb_set_rx_mode [2021-11-13 17:34:06,354 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_set_rx_mode [2021-11-13 17:34:06,354 INFO L130 BoogieDeclarations]: Found specification of procedure macb_tx_desc [2021-11-13 17:34:06,354 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_tx_desc [2021-11-13 17:34:06,355 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2021-11-13 17:34:06,355 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2021-11-13 17:34:06,355 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-11-13 17:34:06,355 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-11-13 17:34:06,355 INFO L130 BoogieDeclarations]: Found specification of procedure macb_reset_hw [2021-11-13 17:34:06,355 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_reset_hw [2021-11-13 17:34:06,355 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-13 17:34:06,355 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-13 17:34:06,356 INFO L130 BoogieDeclarations]: Found specification of procedure macb_suspend [2021-11-13 17:34:06,356 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_suspend [2021-11-13 17:34:06,356 INFO L130 BoogieDeclarations]: Found specification of procedure devm_clk_get [2021-11-13 17:34:06,356 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_clk_get [2021-11-13 17:34:06,356 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-13 17:34:06,356 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-13 17:34:06,356 INFO L130 BoogieDeclarations]: Found specification of procedure macb_dbw [2021-11-13 17:34:06,356 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_dbw [2021-11-13 17:34:06,357 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-13 17:34:06,357 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-13 17:34:06,357 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2021-11-13 17:34:06,357 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2021-11-13 17:34:06,357 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-11-13 17:34:06,357 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-11-13 17:34:06,357 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-13 17:34:06,357 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-13 17:34:06,358 INFO L130 BoogieDeclarations]: Found specification of procedure devm_pinctrl_put [2021-11-13 17:34:06,358 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_pinctrl_put [2021-11-13 17:34:06,358 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-13 17:34:06,358 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-13 17:34:06,358 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-13 17:34:06,359 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-13 17:34:06,359 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-13 17:34:06,359 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-13 17:34:06,359 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-13 17:34:06,359 INFO L130 BoogieDeclarations]: Found specification of procedure gem_rx_refill [2021-11-13 17:34:06,359 INFO L138 BoogieDeclarations]: Found implementation of procedure gem_rx_refill [2021-11-13 17:34:06,359 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-11-13 17:34:06,360 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-11-13 17:34:06,360 INFO L130 BoogieDeclarations]: Found specification of procedure macb_tx_dma [2021-11-13 17:34:06,360 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_tx_dma [2021-11-13 17:34:06,360 INFO L130 BoogieDeclarations]: Found specification of procedure macb_tx_skb [2021-11-13 17:34:06,360 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_tx_skb [2021-11-13 17:34:06,360 INFO L130 BoogieDeclarations]: Found specification of procedure macb_interrupt [2021-11-13 17:34:06,360 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_interrupt [2021-11-13 17:34:06,360 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2021-11-13 17:34:06,361 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2021-11-13 17:34:06,361 INFO L130 BoogieDeclarations]: Found specification of procedure __readl [2021-11-13 17:34:06,361 INFO L138 BoogieDeclarations]: Found implementation of procedure __readl [2021-11-13 17:34:06,361 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-13 17:34:06,361 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-13 17:34:06,361 INFO L130 BoogieDeclarations]: Found specification of procedure __writel [2021-11-13 17:34:06,361 INFO L138 BoogieDeclarations]: Found implementation of procedure __writel [2021-11-13 17:34:06,361 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2021-11-13 17:34:06,362 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2021-11-13 17:34:06,362 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-13 17:34:06,362 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-13 17:34:06,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-13 17:34:06,362 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2021-11-13 17:34:06,362 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2021-11-13 17:34:07,596 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-13 17:34:17,638 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-13 17:34:17,733 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 17:34:17,734 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-13 17:34:17,740 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 05:34:17 BoogieIcfgContainer [2021-11-13 17:34:17,740 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 17:34:17,742 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-13 17:34:17,742 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-13 17:34:17,750 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-13 17:34:17,750 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 05:34:01" (1/3) ... [2021-11-13 17:34:17,751 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f472473 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 05:34:17, skipping insertion in model container [2021-11-13 17:34:17,751 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:34:05" (2/3) ... [2021-11-13 17:34:17,752 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f472473 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 05:34:17, skipping insertion in model container [2021-11-13 17:34:17,752 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 05:34:17" (3/3) ... [2021-11-13 17:34:17,753 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-ethernet-cadence-macb.cil.i [2021-11-13 17:34:17,759 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-13 17:34:17,759 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-13 17:34:17,840 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-13 17:34:17,847 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-13 17:34:17,847 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-13 17:34:17,908 INFO L276 IsEmpty]: Start isEmpty. Operand has 2137 states, 1507 states have (on average 1.2647644326476444) internal successors, (1906), 1525 states have internal predecessors, (1906), 522 states have call successors, (522), 108 states have call predecessors, (522), 107 states have return successors, (515), 510 states have call predecessors, (515), 515 states have call successors, (515) [2021-11-13 17:34:17,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2021-11-13 17:34:17,923 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:34:17,924 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:34:17,925 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] === [2021-11-13 17:34:17,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:34:17,930 INFO L85 PathProgramCache]: Analyzing trace with hash 950140754, now seen corresponding path program 1 times [2021-11-13 17:34:17,940 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:34:17,940 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973350883] [2021-11-13 17:34:17,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:34:17,942 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:34:18,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:34:18,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-13 17:34:18,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:34:18,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:34:18,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:34:19,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-13 17:34:19,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:34:19,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:34:19,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:34:19,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-13 17:34:19,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:34:19,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:34:19,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:34:19,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-13 17:34:19,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:34:19,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:34:19,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:34:19,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-13 17:34:19,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:34:19,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:34:19,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:34:19,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-13 17:34:19,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:34:19,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:34:19,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:34:19,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-13 17:34:19,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:34:19,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:34:19,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:34:19,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-13 17:34:19,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:34:19,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:34:19,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:34:19,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-13 17:34:19,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:34:19,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:34:19,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:34:19,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-13 17:34:19,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:34:19,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:34:19,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:34:19,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-13 17:34:19,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:34:19,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:34:19,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:34:19,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-13 17:34:19,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:34:19,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-13 17:34:19,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:34:19,377 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 528 trivial. 0 not checked. [2021-11-13 17:34:19,377 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:34:19,378 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973350883] [2021-11-13 17:34:19,379 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [973350883] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:34:19,379 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:34:19,379 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-13 17:34:19,381 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785847631] [2021-11-13 17:34:19,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:34:19,386 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 17:34:19,386 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:34:19,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 17:34:19,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-13 17:34:19,419 INFO L87 Difference]: Start difference. First operand has 2137 states, 1507 states have (on average 1.2647644326476444) internal successors, (1906), 1525 states have internal predecessors, (1906), 522 states have call successors, (522), 108 states have call predecessors, (522), 107 states have return successors, (515), 510 states have call predecessors, (515), 515 states have call successors, (515) Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 3 states have internal predecessors, (33), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2021-11-13 17:34:21,491 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:34:23,648 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:34:30,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:34:30,805 INFO L93 Difference]: Finished difference Result 6503 states and 9156 transitions. [2021-11-13 17:34:30,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 17:34:30,812 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 3 states have internal predecessors, (33), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 145 [2021-11-13 17:34:30,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:34:30,900 INFO L225 Difference]: With dead ends: 6503 [2021-11-13 17:34:30,900 INFO L226 Difference]: Without dead ends: 4381 [2021-11-13 17:34:30,931 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-13 17:34:30,937 INFO L933 BasicCegarLoop]: 3084 mSDtfsCounter, 4096 mSDsluCounter, 3207 mSDsCounter, 0 mSdLazyCounter, 1973 mSolverCounterSat, 1707 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9453.10ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4552 SdHoareTripleChecker+Valid, 6291 SdHoareTripleChecker+Invalid, 3682 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 97.17ms SdHoareTripleChecker+Time, 1707 IncrementalHoareTripleChecker+Valid, 1973 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10716.21ms IncrementalHoareTripleChecker+Time [2021-11-13 17:34:30,938 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4552 Valid, 6291 Invalid, 3682 Unknown, 0 Unchecked, 97.17ms Time], IncrementalHoareTripleChecker [1707 Valid, 1973 Invalid, 2 Unknown, 0 Unchecked, 10716.21ms Time] [2021-11-13 17:34:30,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4381 states. [2021-11-13 17:34:31,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4381 to 4163. [2021-11-13 17:34:31,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4163 states, 2949 states have (on average 1.2597490674805019) internal successors, (3715), 2985 states have internal predecessors, (3715), 1002 states have call successors, (1002), 212 states have call predecessors, (1002), 211 states have return successors, (999), 989 states have call predecessors, (999), 999 states have call successors, (999) [2021-11-13 17:34:31,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4163 states to 4163 states and 5716 transitions. [2021-11-13 17:34:31,373 INFO L78 Accepts]: Start accepts. Automaton has 4163 states and 5716 transitions. Word has length 145 [2021-11-13 17:34:31,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:34:31,375 INFO L470 AbstractCegarLoop]: Abstraction has 4163 states and 5716 transitions. [2021-11-13 17:34:31,375 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 3 states have internal predecessors, (33), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2021-11-13 17:34:31,375 INFO L276 IsEmpty]: Start isEmpty. Operand 4163 states and 5716 transitions. [2021-11-13 17:34:31,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2021-11-13 17:34:31,410 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:34:31,410 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 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] [2021-11-13 17:34:31,411 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-13 17:34:31,411 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] === [2021-11-13 17:34:31,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:34:31,412 INFO L85 PathProgramCache]: Analyzing trace with hash -1392757034, now seen corresponding path program 1 times [2021-11-13 17:34:31,412 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:34:31,412 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526352322] [2021-11-13 17:34:31,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:34:31,412 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:34:31,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:34:31,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-13 17:34:31,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:34:31,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:34:31,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:34:31,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-13 17:34:31,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:34:31,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:34:31,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:34:31,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-13 17:34:31,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:34:31,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:34:31,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:34:31,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-13 17:34:31,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:34:31,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:34:31,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:34:31,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-13 17:34:31,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:34:31,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:34:31,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:34:31,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-13 17:34:31,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:34:31,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:34:31,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:34:31,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-13 17:34:31,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:34:31,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:34:31,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:34:31,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-13 17:34:31,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:34:31,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:34:31,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:34:31,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-13 17:34:31,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:34:31,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:34:31,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:34:31,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-13 17:34:31,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:34:31,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:34:31,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:34:32,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-13 17:34:32,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:34:32,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:34:32,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:34:32,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-13 17:34:32,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:34:32,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-11-13 17:34:32,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:34:32,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-11-13 17:34:32,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:34:32,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-11-13 17:34:32,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:34:32,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-11-13 17:34:32,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:34:32,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:34:32,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:34:32,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-11-13 17:34:32,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:34:32,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-11-13 17:34:32,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:34:32,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-11-13 17:34:32,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:34:32,251 INFO L134 CoverageAnalysis]: Checked inductivity of 675 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 669 trivial. 0 not checked. [2021-11-13 17:34:32,251 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:34:32,252 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526352322] [2021-11-13 17:34:32,252 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [526352322] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:34:32,252 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:34:32,252 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-13 17:34:32,256 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909632936] [2021-11-13 17:34:32,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:34:32,258 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 17:34:32,259 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:34:32,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 17:34:32,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-13 17:34:32,260 INFO L87 Difference]: Start difference. First operand 4163 states and 5716 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2021-11-13 17:34:34,314 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:34:36,482 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:34:43,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:34:43,084 INFO L93 Difference]: Finished difference Result 8647 states and 11967 transitions. [2021-11-13 17:34:43,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 17:34:43,089 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 197 [2021-11-13 17:34:43,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:34:43,155 INFO L225 Difference]: With dead ends: 8647 [2021-11-13 17:34:43,156 INFO L226 Difference]: Without dead ends: 6542 [2021-11-13 17:34:43,174 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-13 17:34:43,175 INFO L933 BasicCegarLoop]: 5343 mSDtfsCounter, 3177 mSDsluCounter, 4168 mSDsCounter, 0 mSdLazyCounter, 2006 mSolverCounterSat, 1215 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9197.36ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3627 SdHoareTripleChecker+Valid, 9511 SdHoareTripleChecker+Invalid, 3223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 74.33ms SdHoareTripleChecker+Time, 1215 IncrementalHoareTripleChecker+Valid, 2006 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10250.47ms IncrementalHoareTripleChecker+Time [2021-11-13 17:34:43,176 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3627 Valid, 9511 Invalid, 3223 Unknown, 0 Unchecked, 74.33ms Time], IncrementalHoareTripleChecker [1215 Valid, 2006 Invalid, 2 Unknown, 0 Unchecked, 10250.47ms Time] [2021-11-13 17:34:43,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6542 states. [2021-11-13 17:34:43,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6542 to 6205. [2021-11-13 17:34:43,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6205 states, 4399 states have (on average 1.2605137531257105) internal successors, (5545), 4452 states have internal predecessors, (5545), 1489 states have call successors, (1489), 317 states have call predecessors, (1489), 316 states have return successors, (1486), 1471 states have call predecessors, (1486), 1486 states have call successors, (1486) [2021-11-13 17:34:43,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6205 states to 6205 states and 8520 transitions. [2021-11-13 17:34:43,630 INFO L78 Accepts]: Start accepts. Automaton has 6205 states and 8520 transitions. Word has length 197 [2021-11-13 17:34:43,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:34:43,633 INFO L470 AbstractCegarLoop]: Abstraction has 6205 states and 8520 transitions. [2021-11-13 17:34:43,633 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2021-11-13 17:34:43,633 INFO L276 IsEmpty]: Start isEmpty. Operand 6205 states and 8520 transitions. [2021-11-13 17:34:43,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2021-11-13 17:34:43,647 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:34:43,647 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 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] [2021-11-13 17:34:43,647 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-13 17:34:43,648 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] === [2021-11-13 17:34:43,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:34:43,648 INFO L85 PathProgramCache]: Analyzing trace with hash -970055208, now seen corresponding path program 1 times [2021-11-13 17:34:43,648 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:34:43,649 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833406177] [2021-11-13 17:34:43,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:34:43,649 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:34:43,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:34:44,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-13 17:34:44,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:34:44,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:34:44,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:34:44,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-13 17:34:44,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:34:44,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:34:44,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:34:44,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-13 17:34:44,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:34:44,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:34:44,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:34:44,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-13 17:34:44,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:34:44,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:34:44,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:34:44,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-13 17:34:44,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:34:44,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:34:44,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:34:44,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-13 17:34:44,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:34:44,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:34:44,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:34:44,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-13 17:34:44,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:34:44,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:34:44,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:34:44,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-13 17:34:44,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:34:44,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:34:44,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:34:44,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-13 17:34:44,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:34:44,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:34:44,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:34:44,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-13 17:34:44,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:34:44,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:34:44,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:34:44,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-13 17:34:44,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:34:44,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:34:44,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:34:44,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-13 17:34:44,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:34:44,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-11-13 17:34:44,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:34:44,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-11-13 17:34:44,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:34:44,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-11-13 17:34:44,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:34:44,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-11-13 17:34:44,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:34:44,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:34:44,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:34:44,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-11-13 17:34:44,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:34:44,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-11-13 17:34:44,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:34:44,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-11-13 17:34:44,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:34:44,501 INFO L134 CoverageAnalysis]: Checked inductivity of 675 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 675 trivial. 0 not checked. [2021-11-13 17:34:44,501 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:34:44,504 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [833406177] [2021-11-13 17:34:44,505 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [833406177] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:34:44,505 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:34:44,505 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-13 17:34:44,506 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614506168] [2021-11-13 17:34:44,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:34:44,507 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 17:34:44,507 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:34:44,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 17:34:44,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-13 17:34:44,508 INFO L87 Difference]: Start difference. First operand 6205 states and 8520 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (22), 4 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-13 17:34:46,562 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:34:52,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:34:52,041 INFO L93 Difference]: Finished difference Result 6538 states and 9076 transitions. [2021-11-13 17:34:52,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-13 17:34:52,042 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (22), 4 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 197 [2021-11-13 17:34:52,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:34:52,100 INFO L225 Difference]: With dead ends: 6538 [2021-11-13 17:34:52,100 INFO L226 Difference]: Without dead ends: 6536 [2021-11-13 17:34:52,106 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-13 17:34:52,111 INFO L933 BasicCegarLoop]: 2707 mSDtfsCounter, 3215 mSDsluCounter, 5248 mSDsCounter, 0 mSdLazyCounter, 2305 mSolverCounterSat, 1199 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6212.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3467 SdHoareTripleChecker+Valid, 7955 SdHoareTripleChecker+Invalid, 3505 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 67.89ms SdHoareTripleChecker+Time, 1199 IncrementalHoareTripleChecker+Valid, 2305 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6838.92ms IncrementalHoareTripleChecker+Time [2021-11-13 17:34:52,114 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3467 Valid, 7955 Invalid, 3505 Unknown, 0 Unchecked, 67.89ms Time], IncrementalHoareTripleChecker [1199 Valid, 2305 Invalid, 1 Unknown, 0 Unchecked, 6838.92ms Time] [2021-11-13 17:34:52,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6536 states. [2021-11-13 17:34:52,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6536 to 6209. [2021-11-13 17:34:52,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6209 states, 4402 states have (on average 1.2603362108132667) internal successors, (5548), 4455 states have internal predecessors, (5548), 1489 states have call successors, (1489), 318 states have call predecessors, (1489), 317 states have return successors, (1486), 1471 states have call predecessors, (1486), 1486 states have call successors, (1486) [2021-11-13 17:34:52,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6209 states to 6209 states and 8523 transitions. [2021-11-13 17:34:52,509 INFO L78 Accepts]: Start accepts. Automaton has 6209 states and 8523 transitions. Word has length 197 [2021-11-13 17:34:52,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:34:52,511 INFO L470 AbstractCegarLoop]: Abstraction has 6209 states and 8523 transitions. [2021-11-13 17:34:52,511 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (22), 4 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-13 17:34:52,511 INFO L276 IsEmpty]: Start isEmpty. Operand 6209 states and 8523 transitions. [2021-11-13 17:34:52,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2021-11-13 17:34:52,524 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:34:52,524 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 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] [2021-11-13 17:34:52,524 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-13 17:34:52,524 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] === [2021-11-13 17:34:52,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:34:52,525 INFO L85 PathProgramCache]: Analyzing trace with hash -1697106320, now seen corresponding path program 1 times [2021-11-13 17:34:52,525 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:34:52,525 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940638641] [2021-11-13 17:34:52,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:34:52,526 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:34:52,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:34:52,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-13 17:34:52,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:34:52,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:34:52,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:34:52,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-13 17:34:52,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:34:52,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:34:52,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:34:52,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-13 17:34:52,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:34:52,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:34:52,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:34:52,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-13 17:34:52,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:34:52,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:34:52,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:34:52,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-13 17:34:52,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:34:52,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:34:52,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:34:52,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-13 17:34:52,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:34:52,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:34:52,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:34:52,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-13 17:34:52,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:34:53,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:34:53,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:34:53,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-13 17:34:53,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:34:53,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:34:53,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:34:53,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-13 17:34:53,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:34:53,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:34:53,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:34:53,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-13 17:34:53,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:34:53,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:34:53,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:34:53,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-13 17:34:53,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:34:53,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:34:53,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:34:53,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-13 17:34:53,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:34:53,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-11-13 17:34:53,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:34:53,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-11-13 17:34:53,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:34:53,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-11-13 17:34:53,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:34:53,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-11-13 17:34:53,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:34:53,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:34:53,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:34:53,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-11-13 17:34:53,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:34:53,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-11-13 17:34:53,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:34:53,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-11-13 17:34:53,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:34:53,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-11-13 17:34:53,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:34:53,311 INFO L134 CoverageAnalysis]: Checked inductivity of 677 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 675 trivial. 0 not checked. [2021-11-13 17:34:53,311 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:34:53,311 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [940638641] [2021-11-13 17:34:53,312 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [940638641] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:34:53,312 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:34:53,312 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-13 17:34:53,312 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572814957] [2021-11-13 17:34:53,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:34:53,313 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 17:34:53,313 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:34:53,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 17:34:53,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-13 17:34:53,314 INFO L87 Difference]: Start difference. First operand 6209 states and 8523 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (23), 4 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-13 17:34:55,367 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:35:05,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:35:05,508 INFO L93 Difference]: Finished difference Result 12946 states and 18248 transitions. [2021-11-13 17:35:05,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-13 17:35:05,509 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (23), 4 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 202 [2021-11-13 17:35:05,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:35:05,628 INFO L225 Difference]: With dead ends: 12946 [2021-11-13 17:35:05,628 INFO L226 Difference]: Without dead ends: 12944 [2021-11-13 17:35:05,638 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-11-13 17:35:05,639 INFO L933 BasicCegarLoop]: 3300 mSDtfsCounter, 4053 mSDsluCounter, 8495 mSDsCounter, 0 mSdLazyCounter, 4257 mSolverCounterSat, 1719 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10070.71ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4492 SdHoareTripleChecker+Valid, 11795 SdHoareTripleChecker+Invalid, 5977 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 96.44ms SdHoareTripleChecker+Time, 1719 IncrementalHoareTripleChecker+Valid, 4257 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11269.79ms IncrementalHoareTripleChecker+Time [2021-11-13 17:35:05,640 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4492 Valid, 11795 Invalid, 5977 Unknown, 0 Unchecked, 96.44ms Time], IncrementalHoareTripleChecker [1719 Valid, 4257 Invalid, 1 Unknown, 0 Unchecked, 11269.79ms Time] [2021-11-13 17:35:05,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12944 states. [2021-11-13 17:35:06,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12944 to 12276. [2021-11-13 17:35:06,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12276 states, 8706 states have (on average 1.261199172984149) internal successors, (10980), 8833 states have internal predecessors, (10980), 2928 states have call successors, (2928), 631 states have call predecessors, (2928), 641 states have return successors, (3114), 2883 states have call predecessors, (3114), 2922 states have call successors, (3114) [2021-11-13 17:35:06,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12276 states to 12276 states and 17022 transitions. [2021-11-13 17:35:06,370 INFO L78 Accepts]: Start accepts. Automaton has 12276 states and 17022 transitions. Word has length 202 [2021-11-13 17:35:06,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:35:06,371 INFO L470 AbstractCegarLoop]: Abstraction has 12276 states and 17022 transitions. [2021-11-13 17:35:06,372 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (23), 4 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-13 17:35:06,372 INFO L276 IsEmpty]: Start isEmpty. Operand 12276 states and 17022 transitions. [2021-11-13 17:35:06,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2021-11-13 17:35:06,391 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:35:06,391 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:35:06,391 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-13 17:35:06,392 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] === [2021-11-13 17:35:06,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:35:06,393 INFO L85 PathProgramCache]: Analyzing trace with hash 1155029144, now seen corresponding path program 1 times [2021-11-13 17:35:06,393 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:35:06,393 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456889832] [2021-11-13 17:35:06,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:35:06,394 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:35:06,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:06,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-13 17:35:06,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:06,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:35:06,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:06,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-13 17:35:06,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:06,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:35:06,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:06,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-13 17:35:06,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:06,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:35:06,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:06,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-13 17:35:06,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:06,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:35:06,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:06,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-13 17:35:06,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:06,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:35:06,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:06,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-13 17:35:06,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:06,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:35:06,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:07,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-13 17:35:07,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:07,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:35:07,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:07,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-13 17:35:07,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:07,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:35:07,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:07,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-13 17:35:07,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:07,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:35:07,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:07,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-13 17:35:07,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:07,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:35:07,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:07,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-13 17:35:07,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:07,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:35:07,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:07,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-13 17:35:07,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:07,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-11-13 17:35:07,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:07,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-11-13 17:35:07,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:07,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-11-13 17:35:07,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:07,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-11-13 17:35:07,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:07,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:35:07,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:07,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-11-13 17:35:07,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:07,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-11-13 17:35:07,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:07,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-11-13 17:35:07,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:07,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-11-13 17:35:07,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:07,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-11-13 17:35:07,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:07,247 INFO L134 CoverageAnalysis]: Checked inductivity of 683 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 679 trivial. 0 not checked. [2021-11-13 17:35:07,248 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:35:07,248 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1456889832] [2021-11-13 17:35:07,248 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1456889832] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:35:07,248 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:35:07,248 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-13 17:35:07,249 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353144284] [2021-11-13 17:35:07,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:35:07,249 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 17:35:07,250 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:35:07,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 17:35:07,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-13 17:35:07,251 INFO L87 Difference]: Start difference. First operand 12276 states and 17022 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-13 17:35:09,304 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:35:18,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:35:18,158 INFO L93 Difference]: Finished difference Result 25624 states and 36849 transitions. [2021-11-13 17:35:18,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-13 17:35:18,159 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 207 [2021-11-13 17:35:18,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:35:18,353 INFO L225 Difference]: With dead ends: 25624 [2021-11-13 17:35:18,354 INFO L226 Difference]: Without dead ends: 25620 [2021-11-13 17:35:18,379 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-11-13 17:35:18,382 INFO L933 BasicCegarLoop]: 3322 mSDtfsCounter, 4045 mSDsluCounter, 8543 mSDsCounter, 0 mSdLazyCounter, 4288 mSolverCounterSat, 1711 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8782.55ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4485 SdHoareTripleChecker+Valid, 11865 SdHoareTripleChecker+Invalid, 6000 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 73.09ms SdHoareTripleChecker+Time, 1711 IncrementalHoareTripleChecker+Valid, 4288 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9915.60ms IncrementalHoareTripleChecker+Time [2021-11-13 17:35:18,383 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4485 Valid, 11865 Invalid, 6000 Unknown, 0 Unchecked, 73.09ms Time], IncrementalHoareTripleChecker [1711 Valid, 4288 Invalid, 1 Unknown, 0 Unchecked, 9915.60ms Time] [2021-11-13 17:35:18,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25620 states. [2021-11-13 17:35:19,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25620 to 24559. [2021-11-13 17:35:19,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24559 states, 17421 states have (on average 1.2618678606279776) internal successors, (21983), 17701 states have internal predecessors, (21983), 5842 states have call successors, (5842), 1252 states have call predecessors, (5842), 1295 states have return successors, (6910), 5755 states have call predecessors, (6910), 5830 states have call successors, (6910) [2021-11-13 17:35:19,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24559 states to 24559 states and 34735 transitions. [2021-11-13 17:35:19,973 INFO L78 Accepts]: Start accepts. Automaton has 24559 states and 34735 transitions. Word has length 207 [2021-11-13 17:35:19,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:35:19,974 INFO L470 AbstractCegarLoop]: Abstraction has 24559 states and 34735 transitions. [2021-11-13 17:35:19,974 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-13 17:35:19,975 INFO L276 IsEmpty]: Start isEmpty. Operand 24559 states and 34735 transitions. [2021-11-13 17:35:19,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2021-11-13 17:35:19,998 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:35:19,998 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:35:19,999 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-13 17:35:19,999 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] === [2021-11-13 17:35:19,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:35:20,000 INFO L85 PathProgramCache]: Analyzing trace with hash 603744048, now seen corresponding path program 1 times [2021-11-13 17:35:20,000 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:35:20,000 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757980846] [2021-11-13 17:35:20,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:35:20,000 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:35:20,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:20,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-13 17:35:20,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:20,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:35:20,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:20,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-13 17:35:20,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:20,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:35:20,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:20,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-13 17:35:20,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:20,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:35:20,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:20,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-13 17:35:20,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:20,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:35:20,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:20,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-13 17:35:20,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:20,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:35:20,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:20,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-13 17:35:20,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:20,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:35:20,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:20,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-13 17:35:20,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:20,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:35:20,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:20,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-13 17:35:20,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:20,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:35:20,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:20,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-13 17:35:20,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:20,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:35:20,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:20,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-13 17:35:20,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:20,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:35:20,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:20,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-13 17:35:20,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:20,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:35:20,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:20,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-13 17:35:20,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:20,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-11-13 17:35:20,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:20,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-11-13 17:35:20,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:20,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-11-13 17:35:20,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:20,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-11-13 17:35:20,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:20,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:35:20,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:20,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-11-13 17:35:20,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:20,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-11-13 17:35:20,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:20,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-11-13 17:35:20,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:20,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-11-13 17:35:20,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:20,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-11-13 17:35:20,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:20,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2021-11-13 17:35:20,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:20,907 INFO L134 CoverageAnalysis]: Checked inductivity of 693 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 687 trivial. 0 not checked. [2021-11-13 17:35:20,907 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:35:20,907 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757980846] [2021-11-13 17:35:20,908 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1757980846] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:35:20,908 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:35:20,908 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-13 17:35:20,908 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366912585] [2021-11-13 17:35:20,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:35:20,909 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 17:35:20,909 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:35:20,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 17:35:20,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-13 17:35:20,910 INFO L87 Difference]: Start difference. First operand 24559 states and 34735 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-11-13 17:35:22,966 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:35:32,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:35:32,483 INFO L93 Difference]: Finished difference Result 50983 states and 75564 transitions. [2021-11-13 17:35:32,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-13 17:35:32,483 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 212 [2021-11-13 17:35:32,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:35:32,866 INFO L225 Difference]: With dead ends: 50983 [2021-11-13 17:35:32,866 INFO L226 Difference]: Without dead ends: 50922 [2021-11-13 17:35:32,898 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-11-13 17:35:32,900 INFO L933 BasicCegarLoop]: 3094 mSDtfsCounter, 4118 mSDsluCounter, 8139 mSDsCounter, 0 mSdLazyCounter, 4156 mSolverCounterSat, 1761 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8847.47ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4557 SdHoareTripleChecker+Valid, 11233 SdHoareTripleChecker+Invalid, 5918 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 67.40ms SdHoareTripleChecker+Time, 1761 IncrementalHoareTripleChecker+Valid, 4156 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9983.00ms IncrementalHoareTripleChecker+Time [2021-11-13 17:35:32,900 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4557 Valid, 11233 Invalid, 5918 Unknown, 0 Unchecked, 67.40ms Time], IncrementalHoareTripleChecker [1761 Valid, 4156 Invalid, 1 Unknown, 0 Unchecked, 9983.00ms Time] [2021-11-13 17:35:32,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50922 states. [2021-11-13 17:35:36,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50922 to 49254. [2021-11-13 17:35:36,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49254 states, 34950 states have (on average 1.261859799713877) internal successors, (44102), 35518 states have internal predecessors, (44102), 11692 states have call successors, (11692), 2493 states have call predecessors, (11692), 2611 states have return successors, (15838), 11548 states have call predecessors, (15838), 11671 states have call successors, (15838) [2021-11-13 17:35:36,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49254 states to 49254 states and 71632 transitions. [2021-11-13 17:35:36,747 INFO L78 Accepts]: Start accepts. Automaton has 49254 states and 71632 transitions. Word has length 212 [2021-11-13 17:35:36,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:35:36,748 INFO L470 AbstractCegarLoop]: Abstraction has 49254 states and 71632 transitions. [2021-11-13 17:35:36,749 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-11-13 17:35:36,749 INFO L276 IsEmpty]: Start isEmpty. Operand 49254 states and 71632 transitions. [2021-11-13 17:35:37,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2021-11-13 17:35:37,088 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:35:37,089 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 11, 11, 11, 11, 11, 11, 4, 4, 4, 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] [2021-11-13 17:35:37,089 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-13 17:35:37,089 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] === [2021-11-13 17:35:37,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:35:37,090 INFO L85 PathProgramCache]: Analyzing trace with hash 1468236600, now seen corresponding path program 1 times [2021-11-13 17:35:37,090 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:35:37,090 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619485529] [2021-11-13 17:35:37,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:35:37,091 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:35:37,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:37,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-13 17:35:37,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:37,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:35:37,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:37,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-13 17:35:37,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:37,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:35:37,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:37,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-13 17:35:37,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:37,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:35:37,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:37,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-13 17:35:37,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:37,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:35:37,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:37,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-13 17:35:37,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:37,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:35:37,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:37,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-13 17:35:37,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:37,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:35:37,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:37,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-13 17:35:37,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:37,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:35:37,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:37,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-13 17:35:37,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:37,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:35:37,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:37,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-13 17:35:37,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:37,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:35:37,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:37,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-13 17:35:37,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:37,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:35:37,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:37,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-13 17:35:37,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:37,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:35:37,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:37,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-13 17:35:37,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:37,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-11-13 17:35:37,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:37,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-11-13 17:35:37,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:37,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-11-13 17:35:37,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:37,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-11-13 17:35:37,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:37,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:35:37,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:37,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-11-13 17:35:37,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:37,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-11-13 17:35:37,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:37,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2021-11-13 17:35:37,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:37,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:35:37,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:37,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-13 17:35:37,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:37,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-11-13 17:35:37,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:37,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:35:37,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:37,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-11-13 17:35:37,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:37,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:35:37,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:37,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-11-13 17:35:37,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:37,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:35:37,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:37,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2021-11-13 17:35:37,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:37,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2021-11-13 17:35:37,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:37,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2021-11-13 17:35:37,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:38,007 INFO L134 CoverageAnalysis]: Checked inductivity of 827 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 816 trivial. 0 not checked. [2021-11-13 17:35:38,007 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:35:38,007 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619485529] [2021-11-13 17:35:38,008 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [619485529] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:35:38,008 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:35:38,008 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-13 17:35:38,008 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433201922] [2021-11-13 17:35:38,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:35:38,009 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-13 17:35:38,009 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:35:38,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-13 17:35:38,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-13 17:35:38,010 INFO L87 Difference]: Start difference. First operand 49254 states and 71632 transitions. Second operand has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 3 states have internal predecessors, (121), 3 states have call successors, (33), 6 states have call predecessors, (33), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2021-11-13 17:35:40,067 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:35:42,232 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:35:44,372 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:35:46,536 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:36:06,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:36:06,459 INFO L93 Difference]: Finished difference Result 169104 states and 251935 transitions. [2021-11-13 17:36:06,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-11-13 17:36:06,460 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 3 states have internal predecessors, (121), 3 states have call successors, (33), 6 states have call predecessors, (33), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) Word has length 291 [2021-11-13 17:36:06,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:36:07,819 INFO L225 Difference]: With dead ends: 169104 [2021-11-13 17:36:07,819 INFO L226 Difference]: Without dead ends: 119877 [2021-11-13 17:36:08,119 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=126, Invalid=294, Unknown=0, NotChecked=0, Total=420 [2021-11-13 17:36:08,120 INFO L933 BasicCegarLoop]: 4067 mSDtfsCounter, 7944 mSDsluCounter, 5230 mSDsCounter, 0 mSdLazyCounter, 6237 mSolverCounterSat, 6214 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20574.89ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 8381 SdHoareTripleChecker+Valid, 9297 SdHoareTripleChecker+Invalid, 12455 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 106.16ms SdHoareTripleChecker+Time, 6214 IncrementalHoareTripleChecker+Valid, 6237 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23291.13ms IncrementalHoareTripleChecker+Time [2021-11-13 17:36:08,121 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8381 Valid, 9297 Invalid, 12455 Unknown, 0 Unchecked, 106.16ms Time], IncrementalHoareTripleChecker [6214 Valid, 6237 Invalid, 4 Unknown, 0 Unchecked, 23291.13ms Time] [2021-11-13 17:36:08,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119877 states. [2021-11-13 17:36:14,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119877 to 113218. [2021-11-13 17:36:14,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113218 states, 79060 states have (on average 1.249683784467493) internal successors, (98800), 80191 states have internal predecessors, (98800), 28165 states have call successors, (28165), 4938 states have call predecessors, (28165), 5992 states have return successors, (39070), 28880 states have call predecessors, (39070), 28144 states have call successors, (39070) [2021-11-13 17:36:16,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113218 states to 113218 states and 166035 transitions. [2021-11-13 17:36:16,456 INFO L78 Accepts]: Start accepts. Automaton has 113218 states and 166035 transitions. Word has length 291 [2021-11-13 17:36:16,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:36:16,457 INFO L470 AbstractCegarLoop]: Abstraction has 113218 states and 166035 transitions. [2021-11-13 17:36:16,457 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 3 states have internal predecessors, (121), 3 states have call successors, (33), 6 states have call predecessors, (33), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2021-11-13 17:36:16,457 INFO L276 IsEmpty]: Start isEmpty. Operand 113218 states and 166035 transitions. [2021-11-13 17:36:16,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2021-11-13 17:36:16,617 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:36:16,618 INFO L514 BasicCegarLoop]: trace histogram [19, 19, 11, 11, 11, 11, 11, 11, 5, 5, 5, 4, 4, 4, 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] [2021-11-13 17:36:16,618 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-13 17:36:16,618 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] === [2021-11-13 17:36:16,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:36:16,619 INFO L85 PathProgramCache]: Analyzing trace with hash -1047431120, now seen corresponding path program 1 times [2021-11-13 17:36:16,619 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:36:16,620 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514824468] [2021-11-13 17:36:16,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:36:16,620 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:36:16,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:36:16,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-13 17:36:16,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:36:16,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:36:16,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:36:16,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-13 17:36:16,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:36:16,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:36:16,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:36:16,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-13 17:36:16,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:36:16,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:36:16,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:36:16,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-13 17:36:16,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:36:16,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:36:16,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:36:16,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-13 17:36:16,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:36:16,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:36:16,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:36:16,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-13 17:36:16,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:36:17,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:36:17,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:36:17,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-13 17:36:17,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:36:17,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:36:17,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:36:17,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-13 17:36:17,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:36:17,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:36:17,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:36:17,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-13 17:36:17,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:36:17,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:36:17,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:36:17,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-13 17:36:17,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:36:17,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:36:17,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:36:17,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-13 17:36:17,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:36:17,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:36:17,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:36:17,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-13 17:36:17,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:36:17,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-11-13 17:36:17,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:36:17,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-11-13 17:36:17,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:36:17,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-11-13 17:36:17,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:36:17,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-11-13 17:36:17,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:36:17,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:36:17,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:36:17,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-11-13 17:36:17,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:36:17,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-11-13 17:36:17,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:36:17,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-11-13 17:36:17,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:36:17,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2021-11-13 17:36:17,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:36:17,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2021-11-13 17:36:17,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:36:17,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:36:17,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:36:17,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-13 17:36:17,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:36:17,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-11-13 17:36:17,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:36:17,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:36:17,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:36:17,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-11-13 17:36:17,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:36:17,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:36:17,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:36:17,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-11-13 17:36:17,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:36:17,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:36:17,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:36:17,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2021-11-13 17:36:17,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:36:17,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2021-11-13 17:36:17,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:36:17,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 301 [2021-11-13 17:36:17,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:36:17,467 INFO L134 CoverageAnalysis]: Checked inductivity of 910 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 889 trivial. 0 not checked. [2021-11-13 17:36:17,467 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:36:17,468 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514824468] [2021-11-13 17:36:17,468 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [514824468] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:36:17,468 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:36:17,468 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-13 17:36:17,468 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349271761] [2021-11-13 17:36:17,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:36:17,470 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-13 17:36:17,471 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:36:17,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-13 17:36:17,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-13 17:36:17,472 INFO L87 Difference]: Start difference. First operand 113218 states and 166035 transitions. Second operand has 7 states, 7 states have (on average 18.571428571428573) internal successors, (130), 3 states have internal predecessors, (130), 3 states have call successors, (34), 6 states have call predecessors, (34), 1 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2021-11-13 17:36:19,537 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:36:21,703 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:36:23,895 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:36:26,095 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:36:47,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:36:47,770 INFO L93 Difference]: Finished difference Result 246875 states and 366500 transitions. [2021-11-13 17:36:47,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-11-13 17:36:47,771 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.571428571428573) internal successors, (130), 3 states have internal predecessors, (130), 3 states have call successors, (34), 6 states have call predecessors, (34), 1 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) Word has length 310 [2021-11-13 17:36:47,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:36:48,963 INFO L225 Difference]: With dead ends: 246875 [2021-11-13 17:36:48,963 INFO L226 Difference]: Without dead ends: 132932 [2021-11-13 17:36:49,796 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=126, Invalid=294, Unknown=0, NotChecked=0, Total=420 [2021-11-13 17:36:49,797 INFO L933 BasicCegarLoop]: 4971 mSDtfsCounter, 9094 mSDsluCounter, 6388 mSDsCounter, 0 mSdLazyCounter, 6091 mSolverCounterSat, 7608 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21087.21ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 9567 SdHoareTripleChecker+Valid, 11359 SdHoareTripleChecker+Invalid, 13703 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 114.85ms SdHoareTripleChecker+Time, 7608 IncrementalHoareTripleChecker+Valid, 6091 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23914.74ms IncrementalHoareTripleChecker+Time [2021-11-13 17:36:49,797 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9567 Valid, 11359 Invalid, 13703 Unknown, 0 Unchecked, 114.85ms Time], IncrementalHoareTripleChecker [7608 Valid, 6091 Invalid, 4 Unknown, 0 Unchecked, 23914.74ms Time] [2021-11-13 17:36:49,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132932 states. [2021-11-13 17:36:55,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132932 to 126274. [2021-11-13 17:36:56,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126274 states, 88761 states have (on average 1.2482283885940897) internal successors, (110794), 90034 states have internal predecessors, (110794), 30730 states have call successors, (30730), 5728 states have call predecessors, (30730), 6782 states have return successors, (42995), 31399 states have call predecessors, (42995), 30709 states have call successors, (42995) [2021-11-13 17:36:57,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126274 states to 126274 states and 184519 transitions. [2021-11-13 17:36:57,669 INFO L78 Accepts]: Start accepts. Automaton has 126274 states and 184519 transitions. Word has length 310 [2021-11-13 17:36:57,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:36:57,669 INFO L470 AbstractCegarLoop]: Abstraction has 126274 states and 184519 transitions. [2021-11-13 17:36:57,670 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.571428571428573) internal successors, (130), 3 states have internal predecessors, (130), 3 states have call successors, (34), 6 states have call predecessors, (34), 1 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2021-11-13 17:36:57,670 INFO L276 IsEmpty]: Start isEmpty. Operand 126274 states and 184519 transitions. [2021-11-13 17:36:57,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 319 [2021-11-13 17:36:57,726 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:36:57,726 INFO L514 BasicCegarLoop]: trace histogram [19, 19, 11, 11, 11, 11, 11, 11, 6, 6, 6, 4, 4, 4, 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] [2021-11-13 17:36:57,727 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-13 17:36:57,727 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] === [2021-11-13 17:36:57,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:36:57,728 INFO L85 PathProgramCache]: Analyzing trace with hash -632225996, now seen corresponding path program 1 times [2021-11-13 17:36:57,728 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:36:57,728 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106607684] [2021-11-13 17:36:57,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:36:57,729 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:36:57,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:36:57,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-13 17:36:57,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:36:57,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:36:57,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:36:57,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-13 17:36:57,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:36:57,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:36:57,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:36:57,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-13 17:36:57,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:36:57,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:36:57,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:36:58,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-13 17:36:58,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:36:58,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:36:58,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:36:58,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-13 17:36:58,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:36:58,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:36:58,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:36:58,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-13 17:36:58,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:36:58,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:36:58,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:36:58,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-13 17:36:58,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:36:58,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:36:58,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:36:58,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-13 17:36:58,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:36:58,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:36:58,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:36:58,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-13 17:36:58,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:36:58,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:36:58,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:36:58,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-13 17:36:58,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:36:58,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:36:58,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:36:58,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-13 17:36:58,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:36:58,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:36:58,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:36:58,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-13 17:36:58,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:36:58,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-11-13 17:36:58,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:36:58,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-11-13 17:36:58,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:36:58,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-11-13 17:36:58,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:36:58,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-11-13 17:36:58,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:36:58,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2021-11-13 17:36:58,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:36:58,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:36:58,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:36:58,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-11-13 17:36:58,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:36:58,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-11-13 17:36:58,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:36:58,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-11-13 17:36:58,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:36:58,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2021-11-13 17:36:58,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:36:58,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2021-11-13 17:36:58,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:36:58,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:36:58,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:36:58,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-13 17:36:58,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:36:58,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-11-13 17:36:58,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:36:58,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:36:58,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:36:58,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-11-13 17:36:58,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:36:58,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:36:58,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:36:58,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-11-13 17:36:58,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:36:58,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:36:58,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:36:58,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2021-11-13 17:36:58,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:36:58,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2021-11-13 17:36:58,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:36:58,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2021-11-13 17:36:58,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:36:58,951 INFO L134 CoverageAnalysis]: Checked inductivity of 930 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 906 trivial. 0 not checked. [2021-11-13 17:36:58,951 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:36:58,951 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106607684] [2021-11-13 17:36:58,951 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1106607684] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:36:58,952 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:36:58,952 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-13 17:36:58,952 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684906299] [2021-11-13 17:36:58,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:36:58,953 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-13 17:36:58,953 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:36:58,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-13 17:36:58,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-13 17:36:58,954 INFO L87 Difference]: Start difference. First operand 126274 states and 184519 transitions. Second operand has 7 states, 7 states have (on average 19.142857142857142) internal successors, (134), 3 states have internal predecessors, (134), 3 states have call successors, (36), 6 states have call predecessors, (36), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2021-11-13 17:37:01,026 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:37:03,199 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:37:05,382 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:37:07,577 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:37:09,785 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:37:33,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:37:33,958 INFO L93 Difference]: Finished difference Result 311128 states and 461963 transitions. [2021-11-13 17:37:33,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-11-13 17:37:33,958 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.142857142857142) internal successors, (134), 3 states have internal predecessors, (134), 3 states have call successors, (36), 6 states have call predecessors, (36), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) Word has length 318 [2021-11-13 17:37:33,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:37:35,449 INFO L225 Difference]: With dead ends: 311128 [2021-11-13 17:37:35,449 INFO L226 Difference]: Without dead ends: 185622 [2021-11-13 17:37:36,005 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=126, Invalid=294, Unknown=0, NotChecked=0, Total=420 [2021-11-13 17:37:36,006 INFO L933 BasicCegarLoop]: 5753 mSDtfsCounter, 5029 mSDsluCounter, 8725 mSDsCounter, 0 mSdLazyCounter, 6890 mSolverCounterSat, 3925 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23121.67ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5524 SdHoareTripleChecker+Valid, 14478 SdHoareTripleChecker+Invalid, 10820 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 108.91ms SdHoareTripleChecker+Time, 3925 IncrementalHoareTripleChecker+Valid, 6890 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26009.09ms IncrementalHoareTripleChecker+Time [2021-11-13 17:37:36,006 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5524 Valid, 14478 Invalid, 10820 Unknown, 0 Unchecked, 108.91ms Time], IncrementalHoareTripleChecker [3925 Valid, 6890 Invalid, 5 Unknown, 0 Unchecked, 26009.09ms Time] [2021-11-13 17:37:36,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185622 states. [2021-11-13 17:37:45,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185622 to 176732. [2021-11-13 17:37:46,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176732 states, 124553 states have (on average 1.2479506716016475) internal successors, (155436), 126336 states have internal predecessors, (155436), 42644 states have call successors, (42644), 8126 states have call predecessors, (42644), 9534 states have return successors, (59911), 43517 states have call predecessors, (59911), 42623 states have call successors, (59911) [2021-11-13 17:37:47,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176732 states to 176732 states and 257991 transitions. [2021-11-13 17:37:47,933 INFO L78 Accepts]: Start accepts. Automaton has 176732 states and 257991 transitions. Word has length 318 [2021-11-13 17:37:47,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:37:47,936 INFO L470 AbstractCegarLoop]: Abstraction has 176732 states and 257991 transitions. [2021-11-13 17:37:47,936 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.142857142857142) internal successors, (134), 3 states have internal predecessors, (134), 3 states have call successors, (36), 6 states have call predecessors, (36), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2021-11-13 17:37:47,937 INFO L276 IsEmpty]: Start isEmpty. Operand 176732 states and 257991 transitions. [2021-11-13 17:37:48,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 375 [2021-11-13 17:37:48,010 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:37:48,010 INFO L514 BasicCegarLoop]: trace histogram [21, 21, 11, 11, 11, 11, 11, 11, 8, 8, 8, 5, 5, 5, 3, 3, 3, 3, 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] [2021-11-13 17:37:48,011 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-13 17:37:48,011 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] === [2021-11-13 17:37:48,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:37:48,012 INFO L85 PathProgramCache]: Analyzing trace with hash -1111411436, now seen corresponding path program 1 times [2021-11-13 17:37:48,012 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:37:48,012 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380895277] [2021-11-13 17:37:48,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:37:48,012 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:37:48,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:48,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-13 17:37:48,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:48,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:37:48,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:48,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-13 17:37:48,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:48,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:37:48,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:48,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-13 17:37:48,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:48,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:37:48,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:48,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-13 17:37:48,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:48,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:37:48,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:48,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-13 17:37:48,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:48,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:37:48,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:48,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-13 17:37:48,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:48,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:37:48,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:48,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-13 17:37:48,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:48,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:37:48,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:48,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-13 17:37:48,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:48,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:37:48,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:48,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-13 17:37:48,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:48,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:37:48,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:48,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-13 17:37:48,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:48,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:37:48,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:48,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-13 17:37:48,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:48,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:37:48,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:48,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-13 17:37:48,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:48,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-11-13 17:37:48,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:48,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-11-13 17:37:48,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:48,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-11-13 17:37:48,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:48,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-11-13 17:37:48,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:48,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2021-11-13 17:37:48,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:48,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:37:48,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:48,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-11-13 17:37:48,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:48,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-11-13 17:37:48,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:48,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2021-11-13 17:37:48,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:48,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:37:48,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:48,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:37:48,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:48,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 17:37:48,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:48,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2021-11-13 17:37:48,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:48,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2021-11-13 17:37:48,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:48,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2021-11-13 17:37:48,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:48,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2021-11-13 17:37:48,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:48,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2021-11-13 17:37:48,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:48,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:37:48,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:48,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-13 17:37:48,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:48,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-11-13 17:37:48,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:48,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:37:48,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:48,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-11-13 17:37:48,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:48,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:37:48,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:48,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-11-13 17:37:48,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:48,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:37:48,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:48,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2021-11-13 17:37:48,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:48,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2021-11-13 17:37:48,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:48,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 365 [2021-11-13 17:37:48,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:48,921 INFO L134 CoverageAnalysis]: Checked inductivity of 1129 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 1081 trivial. 0 not checked. [2021-11-13 17:37:48,921 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:37:48,921 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380895277] [2021-11-13 17:37:48,922 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [380895277] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:37:48,922 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:37:48,922 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-13 17:37:48,922 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615810868] [2021-11-13 17:37:48,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:37:48,923 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-13 17:37:48,924 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:37:48,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-13 17:37:48,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-13 17:37:48,925 INFO L87 Difference]: Start difference. First operand 176732 states and 257991 transitions. Second operand has 7 states, 7 states have (on average 23.571428571428573) internal successors, (165), 3 states have internal predecessors, (165), 3 states have call successors, (41), 6 states have call predecessors, (41), 1 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) [2021-11-13 17:37:50,996 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:37:53,199 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:37:55,385 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []