./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-drivers-clk1_drivers-net-ethernet-stmicro-stmmac-stmmac.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_950c983c-4034-4359-b137-ca2cd3eda113/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_950c983c-4034-4359-b137-ca2cd3eda113/bin/uautomizer-DQz5hQGWxF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_950c983c-4034-4359-b137-ca2cd3eda113/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_950c983c-4034-4359-b137-ca2cd3eda113/bin/uautomizer-DQz5hQGWxF/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-drivers-clk1_drivers-net-ethernet-stmicro-stmmac-stmmac.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_950c983c-4034-4359-b137-ca2cd3eda113/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_950c983c-4034-4359-b137-ca2cd3eda113/bin/uautomizer-DQz5hQGWxF --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 48ae22c8c2494b96697ffe1db529f00fa4b52cdca22138b3bf77c84445f7f2f5 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 05:35:54,255 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 05:35:54,258 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 05:35:54,302 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 05:35:54,303 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 05:35:54,305 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 05:35:54,306 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 05:35:54,309 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 05:35:54,311 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 05:35:54,313 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 05:35:54,314 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 05:35:54,316 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 05:35:54,316 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 05:35:54,318 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 05:35:54,320 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 05:35:54,322 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 05:35:54,323 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 05:35:54,324 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 05:35:54,327 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 05:35:54,330 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 05:35:54,332 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 05:35:54,334 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 05:35:54,336 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 05:35:54,337 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 05:35:54,341 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 05:35:54,341 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 05:35:54,342 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 05:35:54,343 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 05:35:54,344 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 05:35:54,345 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 05:35:54,345 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 05:35:54,346 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 05:35:54,347 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 05:35:54,348 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 05:35:54,350 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 05:35:54,350 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 05:35:54,351 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 05:35:54,352 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 05:35:54,352 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 05:35:54,354 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 05:35:54,355 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 05:35:54,356 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_950c983c-4034-4359-b137-ca2cd3eda113/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-20 05:35:54,381 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 05:35:54,381 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 05:35:54,382 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 05:35:54,382 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 05:35:54,383 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 05:35:54,384 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 05:35:54,384 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 05:35:54,385 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 05:35:54,385 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 05:35:54,386 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 05:35:54,386 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 05:35:54,386 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 05:35:54,387 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 05:35:54,387 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 05:35:54,388 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 05:35:54,388 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 05:35:54,388 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 05:35:54,389 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 05:35:54,389 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 05:35:54,390 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 05:35:54,390 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 05:35:54,390 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 05:35:54,391 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 05:35:54,391 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 05:35:54,392 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 05:35:54,392 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-20 05:35:54,393 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-20 05:35:54,393 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-20 05:35:54,393 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-20 05:35:54,394 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 05:35:54,394 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 05:35:54,394 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_950c983c-4034-4359-b137-ca2cd3eda113/bin/uautomizer-DQz5hQGWxF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_950c983c-4034-4359-b137-ca2cd3eda113/bin/uautomizer-DQz5hQGWxF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 48ae22c8c2494b96697ffe1db529f00fa4b52cdca22138b3bf77c84445f7f2f5 [2021-11-20 05:35:54,633 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 05:35:54,654 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 05:35:54,657 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 05:35:54,658 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 05:35:54,659 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 05:35:54,661 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_950c983c-4034-4359-b137-ca2cd3eda113/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-drivers-clk1_drivers-net-ethernet-stmicro-stmmac-stmmac.cil.i [2021-11-20 05:35:54,753 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_950c983c-4034-4359-b137-ca2cd3eda113/bin/uautomizer-DQz5hQGWxF/data/736cf920d/e585032f849d4ce5b4664e726b9333e0/FLAG19ca0f693 [2021-11-20 05:35:55,929 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 05:35:55,930 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_950c983c-4034-4359-b137-ca2cd3eda113/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-drivers-clk1_drivers-net-ethernet-stmicro-stmmac-stmmac.cil.i [2021-11-20 05:35:56,017 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_950c983c-4034-4359-b137-ca2cd3eda113/bin/uautomizer-DQz5hQGWxF/data/736cf920d/e585032f849d4ce5b4664e726b9333e0/FLAG19ca0f693 [2021-11-20 05:35:56,082 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_950c983c-4034-4359-b137-ca2cd3eda113/bin/uautomizer-DQz5hQGWxF/data/736cf920d/e585032f849d4ce5b4664e726b9333e0 [2021-11-20 05:35:56,084 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 05:35:56,087 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 05:35:56,088 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 05:35:56,088 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 05:35:56,092 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 05:35:56,093 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:35:56" (1/1) ... [2021-11-20 05:35:56,094 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b51747a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:35:56, skipping insertion in model container [2021-11-20 05:35:56,095 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:35:56" (1/1) ... [2021-11-20 05:35:56,102 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 05:35:56,377 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 05:36:05,217 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_950c983c-4034-4359-b137-ca2cd3eda113/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-drivers-clk1_drivers-net-ethernet-stmicro-stmmac-stmmac.cil.i[788938,788951] [2021-11-20 05:36:05,258 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 05:36:05,432 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 05:36:06,204 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_950c983c-4034-4359-b137-ca2cd3eda113/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-drivers-clk1_drivers-net-ethernet-stmicro-stmmac-stmmac.cil.i[788938,788951] [2021-11-20 05:36:06,217 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 05:36:06,832 INFO L208 MainTranslator]: Completed translation [2021-11-20 05:36:06,833 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:36:06 WrapperNode [2021-11-20 05:36:06,833 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 05:36:06,834 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 05:36:06,835 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 05:36:06,835 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 05:36:06,843 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:36:06" (1/1) ... [2021-11-20 05:36:07,170 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:36:06" (1/1) ... [2021-11-20 05:36:07,853 INFO L137 Inliner]: procedures = 926, calls = 12263, calls flagged for inlining = 543, calls inlined = 454, statements flattened = 17931 [2021-11-20 05:36:07,854 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 05:36:07,855 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 05:36:07,855 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 05:36:07,855 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 05:36:07,865 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:36:06" (1/1) ... [2021-11-20 05:36:07,865 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:36:06" (1/1) ... [2021-11-20 05:36:07,979 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:36:06" (1/1) ... [2021-11-20 05:36:07,980 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:36:06" (1/1) ... [2021-11-20 05:36:08,532 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:36:06" (1/1) ... [2021-11-20 05:36:08,612 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:36:06" (1/1) ... [2021-11-20 05:36:08,698 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:36:06" (1/1) ... [2021-11-20 05:36:08,800 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 05:36:08,801 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 05:36:08,802 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 05:36:08,802 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 05:36:08,804 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:36:06" (1/1) ... [2021-11-20 05:36:08,813 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 05:36:08,825 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_950c983c-4034-4359-b137-ca2cd3eda113/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:36:08,844 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_950c983c-4034-4359-b137-ca2cd3eda113/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 05:36:08,874 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_950c983c-4034-4359-b137-ca2cd3eda113/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 05:36:08,893 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_get_coalesce [2021-11-20 05:36:08,894 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_get_coalesce [2021-11-20 05:36:08,894 INFO L130 BoogieDeclarations]: Found specification of procedure device_set_wakeup_enable [2021-11-20 05:36:08,894 INFO L138 BoogieDeclarations]: Found implementation of procedure device_set_wakeup_enable [2021-11-20 05:36:08,894 INFO L130 BoogieDeclarations]: Found specification of procedure ndesc_get_tx_owner [2021-11-20 05:36:08,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ndesc_get_tx_owner [2021-11-20 05:36:08,895 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-20 05:36:08,895 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-20 05:36:09,084 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac1000_rx_watchdog [2021-11-20 05:36:09,084 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac1000_rx_watchdog [2021-11-20 05:36:09,084 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac1000_set_filter [2021-11-20 05:36:09,085 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac1000_set_filter [2021-11-20 05:36:09,085 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-20 05:36:09,085 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-20 05:36:09,085 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-11-20 05:36:09,085 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-11-20 05:36:09,085 INFO L130 BoogieDeclarations]: Found specification of procedure crc32_le [2021-11-20 05:36:09,085 INFO L138 BoogieDeclarations]: Found implementation of procedure crc32_le [2021-11-20 05:36:09,085 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2021-11-20 05:36:09,085 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2021-11-20 05:36:09,085 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~TO~VOID [2021-11-20 05:36:09,086 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~TO~VOID [2021-11-20 05:36:09,086 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_clean_desc3___0 [2021-11-20 05:36:09,086 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_clean_desc3___0 [2021-11-20 05:36:09,086 INFO L130 BoogieDeclarations]: Found specification of procedure ehn_desc_tx_set_on_chain [2021-11-20 05:36:09,086 INFO L138 BoogieDeclarations]: Found implementation of procedure ehn_desc_tx_set_on_chain [2021-11-20 05:36:09,086 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-20 05:36:09,086 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-20 05:36:09,086 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-20 05:36:09,086 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-20 05:36:09,086 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_pltfr_probe [2021-11-20 05:36:09,087 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_pltfr_probe [2021-11-20 05:36:09,087 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_poll_controller [2021-11-20 05:36:09,087 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_poll_controller [2021-11-20 05:36:09,087 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-11-20 05:36:09,087 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-11-20 05:36:09,087 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_pltfr_suspend [2021-11-20 05:36:09,087 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_pltfr_suspend [2021-11-20 05:36:09,087 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-11-20 05:36:09,087 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-11-20 05:36:09,087 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dispatch_irq_register_19_2 [2021-11-20 05:36:09,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dispatch_irq_register_19_2 [2021-11-20 05:36:09,088 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac100_dma_operation_mode [2021-11-20 05:36:09,088 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac100_dma_operation_mode [2021-11-20 05:36:09,088 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac1000_ctrl_ane [2021-11-20 05:36:09,088 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac1000_ctrl_ane [2021-11-20 05:36:09,088 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-20 05:36:09,088 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-20 05:36:09,088 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~X~~u32~0~TO~int [2021-11-20 05:36:09,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~X~~u32~0~TO~int [2021-11-20 05:36:09,088 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_set_16kib_bfsize [2021-11-20 05:36:09,089 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_set_16kib_bfsize [2021-11-20 05:36:09,089 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac1000_set_eee_timer [2021-11-20 05:36:09,089 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac1000_set_eee_timer [2021-11-20 05:36:09,089 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-20 05:36:09,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-20 05:36:09,089 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-20 05:36:09,089 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~X~int~TO~VOID [2021-11-20 05:36:09,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~X~int~TO~VOID [2021-11-20 05:36:09,089 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_drivers_clk1__more_at_exit [2021-11-20 05:36:09,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_drivers_clk1__more_at_exit [2021-11-20 05:36:09,090 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-20 05:36:09,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-20 05:36:09,092 INFO L130 BoogieDeclarations]: Found specification of procedure ndesc_release_tx_desc [2021-11-20 05:36:09,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ndesc_release_tx_desc [2021-11-20 05:36:09,092 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac1000_dump_regs [2021-11-20 05:36:09,093 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac1000_dump_regs [2021-11-20 05:36:09,093 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-20 05:36:09,093 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-20 05:36:09,094 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac100_dump_mac_regs [2021-11-20 05:36:09,094 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac100_dump_mac_regs [2021-11-20 05:36:09,094 INFO L130 BoogieDeclarations]: Found specification of procedure enh_desc_get_tx_ls [2021-11-20 05:36:09,095 INFO L138 BoogieDeclarations]: Found implementation of procedure enh_desc_get_tx_ls [2021-11-20 05:36:09,095 INFO L130 BoogieDeclarations]: Found specification of procedure ndesc_close_tx_desc [2021-11-20 05:36:09,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ndesc_close_tx_desc [2021-11-20 05:36:09,095 INFO L130 BoogieDeclarations]: Found specification of procedure napi_enable [2021-11-20 05:36:09,095 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_enable [2021-11-20 05:36:09,096 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac100_core_init [2021-11-20 05:36:09,096 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac100_core_init [2021-11-20 05:36:09,096 INFO L130 BoogieDeclarations]: Found specification of procedure virt_to_phys [2021-11-20 05:36:09,096 INFO L138 BoogieDeclarations]: Found implementation of procedure virt_to_phys [2021-11-20 05:36:09,096 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-20 05:36:09,096 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_tx_skbufs [2021-11-20 05:36:09,097 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_tx_skbufs [2021-11-20 05:36:09,097 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 05:36:09,097 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-20 05:36:09,097 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-20 05:36:09,097 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-20 05:36:09,097 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-20 05:36:09,098 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac1000_rx_ipc_enable [2021-11-20 05:36:09,098 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac1000_rx_ipc_enable [2021-11-20 05:36:09,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-20 05:36:09,099 INFO L130 BoogieDeclarations]: Found specification of procedure enh_desc_get_rx_status [2021-11-20 05:36:09,099 INFO L138 BoogieDeclarations]: Found implementation of procedure enh_desc_get_rx_status [2021-11-20 05:36:09,099 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headlen [2021-11-20 05:36:09,099 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headlen [2021-11-20 05:36:09,100 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2021-11-20 05:36:09,100 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2021-11-20 05:36:09,101 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac1000_get_adv [2021-11-20 05:36:09,101 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac1000_get_adv [2021-11-20 05:36:09,101 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-11-20 05:36:09,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-11-20 05:36:09,101 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_hw_fix_mac_speed [2021-11-20 05:36:09,101 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_hw_fix_mac_speed [2021-11-20 05:36:09,102 INFO L130 BoogieDeclarations]: Found specification of procedure napi_disable [2021-11-20 05:36:09,102 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_disable [2021-11-20 05:36:09,102 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-20 05:36:09,102 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-20 05:36:09,102 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_config_addend [2021-11-20 05:36:09,102 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_config_addend [2021-11-20 05:36:09,102 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac_enable_dma_transmission [2021-11-20 05:36:09,103 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac_enable_dma_transmission [2021-11-20 05:36:09,103 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-20 05:36:09,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-20 05:36:09,104 INFO L130 BoogieDeclarations]: Found specification of procedure device_can_wakeup [2021-11-20 05:36:09,104 INFO L138 BoogieDeclarations]: Found implementation of procedure device_can_wakeup [2021-11-20 05:36:09,104 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_suspend [2021-11-20 05:36:09,105 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_suspend [2021-11-20 05:36:09,105 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_set_pauseparam [2021-11-20 05:36:09,108 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_set_pauseparam [2021-11-20 05:36:09,108 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_free_rx_buffers [2021-11-20 05:36:09,109 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_free_rx_buffers [2021-11-20 05:36:09,109 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-11-20 05:36:09,110 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-11-20 05:36:09,110 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_init_dma_chain [2021-11-20 05:36:09,110 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_init_dma_chain [2021-11-20 05:36:09,111 INFO L130 BoogieDeclarations]: Found specification of procedure enh_desc_get_rx_frame_len [2021-11-20 05:36:09,111 INFO L138 BoogieDeclarations]: Found implementation of procedure enh_desc_get_rx_frame_len [2021-11-20 05:36:09,115 INFO L130 BoogieDeclarations]: Found specification of procedure enh_desc_init_rx_desc [2021-11-20 05:36:09,115 INFO L138 BoogieDeclarations]: Found implementation of procedure enh_desc_init_rx_desc [2021-11-20 05:36:09,115 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_interrupt [2021-11-20 05:36:09,115 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_interrupt [2021-11-20 05:36:09,115 INFO L130 BoogieDeclarations]: Found specification of procedure ndesc_init_rx_desc [2021-11-20 05:36:09,116 INFO L138 BoogieDeclarations]: Found implementation of procedure ndesc_init_rx_desc [2021-11-20 05:36:09,116 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_set_mac_addr [2021-11-20 05:36:09,116 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_set_mac_addr [2021-11-20 05:36:09,116 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 05:36:09,116 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 05:36:09,116 INFO L130 BoogieDeclarations]: Found specification of procedure ndesc_get_rx_status [2021-11-20 05:36:09,116 INFO L138 BoogieDeclarations]: Found implementation of procedure ndesc_get_rx_status [2021-11-20 05:36:09,117 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-11-20 05:36:09,117 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-11-20 05:36:09,117 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac1000_reset_eee_mode [2021-11-20 05:36:09,117 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac1000_reset_eee_mode [2021-11-20 05:36:09,117 INFO L130 BoogieDeclarations]: Found specification of procedure enh_desc_enable_tx_timestamp [2021-11-20 05:36:09,117 INFO L138 BoogieDeclarations]: Found implementation of procedure enh_desc_enable_tx_timestamp [2021-11-20 05:36:09,118 INFO L130 BoogieDeclarations]: Found specification of procedure mdiobus_free [2021-11-20 05:36:09,118 INFO L138 BoogieDeclarations]: Found implementation of procedure mdiobus_free [2021-11-20 05:36:09,118 INFO L130 BoogieDeclarations]: Found specification of procedure ndesc_set_rx_owner [2021-11-20 05:36:09,118 INFO L138 BoogieDeclarations]: Found implementation of procedure ndesc_set_rx_owner [2021-11-20 05:36:09,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-20 05:36:09,118 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-11-20 05:36:09,118 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-11-20 05:36:09,119 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_display_ring [2021-11-20 05:36:09,119 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_display_ring [2021-11-20 05:36:09,119 INFO L130 BoogieDeclarations]: Found specification of procedure mdiobus_unregister [2021-11-20 05:36:09,119 INFO L138 BoogieDeclarations]: Found implementation of procedure mdiobus_unregister [2021-11-20 05:36:09,119 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-11-20 05:36:09,119 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-11-20 05:36:09,119 INFO L130 BoogieDeclarations]: Found specification of procedure enh_desc_get_rx_timestamp_status [2021-11-20 05:36:09,120 INFO L138 BoogieDeclarations]: Found implementation of procedure enh_desc_get_rx_timestamp_status [2021-11-20 05:36:09,120 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-20 05:36:09,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-20 05:36:09,120 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac1000_set_eee_pls [2021-11-20 05:36:09,120 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac1000_set_eee_pls [2021-11-20 05:36:09,120 INFO L130 BoogieDeclarations]: Found specification of procedure ndesc_enable_tx_timestamp [2021-11-20 05:36:09,121 INFO L138 BoogieDeclarations]: Found implementation of procedure ndesc_enable_tx_timestamp [2021-11-20 05:36:09,121 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_clk_prepare_enable_29 [2021-11-20 05:36:09,121 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_clk_prepare_enable_29 [2021-11-20 05:36:09,121 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac100_rx_ipc_enable [2021-11-20 05:36:09,121 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac100_rx_ipc_enable [2021-11-20 05:36:09,121 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2021-11-20 05:36:09,121 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2021-11-20 05:36:09,122 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~TO~int [2021-11-20 05:36:09,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~TO~int [2021-11-20 05:36:09,122 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-20 05:36:09,122 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-20 05:36:09,122 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_init_rx_buffers [2021-11-20 05:36:09,123 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_init_rx_buffers [2021-11-20 05:36:09,123 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2021-11-20 05:36:09,123 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2021-11-20 05:36:09,123 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_hw_setup [2021-11-20 05:36:09,123 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_hw_setup [2021-11-20 05:36:09,124 INFO L130 BoogieDeclarations]: Found specification of procedure div_u64 [2021-11-20 05:36:09,124 INFO L138 BoogieDeclarations]: Found implementation of procedure div_u64 [2021-11-20 05:36:09,124 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2021-11-20 05:36:09,125 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2021-11-20 05:36:09,125 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2021-11-20 05:36:09,125 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2021-11-20 05:36:09,125 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-20 05:36:09,125 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac100_set_umac_addr [2021-11-20 05:36:09,125 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac100_set_umac_addr [2021-11-20 05:36:09,127 INFO L130 BoogieDeclarations]: Found specification of procedure enh_desc_get_tx_len [2021-11-20 05:36:09,127 INFO L138 BoogieDeclarations]: Found implementation of procedure enh_desc_get_tx_len [2021-11-20 05:36:09,127 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-20 05:36:09,127 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2021-11-20 05:36:09,127 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2021-11-20 05:36:09,128 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac100_pmt [2021-11-20 05:36:09,128 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac100_pmt [2021-11-20 05:36:09,128 INFO L130 BoogieDeclarations]: Found specification of procedure enh_desc_get_tx_timestamp_status [2021-11-20 05:36:09,128 INFO L138 BoogieDeclarations]: Found implementation of procedure enh_desc_get_tx_timestamp_status [2021-11-20 05:36:09,128 INFO L130 BoogieDeclarations]: Found specification of procedure clk_get_rate [2021-11-20 05:36:09,128 INFO L138 BoogieDeclarations]: Found implementation of procedure clk_get_rate [2021-11-20 05:36:09,128 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_release [2021-11-20 05:36:09,129 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_release [2021-11-20 05:36:09,129 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac_enable_dma_irq [2021-11-20 05:36:09,129 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac_enable_dma_irq [2021-11-20 05:36:09,129 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_tx_timeout [2021-11-20 05:36:09,129 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_tx_timeout [2021-11-20 05:36:09,129 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-11-20 05:36:09,129 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-11-20 05:36:09,130 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_init_systime [2021-11-20 05:36:09,130 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_init_systime [2021-11-20 05:36:09,130 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-11-20 05:36:09,130 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-11-20 05:36:09,130 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-20 05:36:09,130 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-20 05:36:09,130 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-20 05:36:09,130 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-20 05:36:09,131 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_set_time [2021-11-20 05:36:09,131 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_set_time [2021-11-20 05:36:09,131 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac1000_core_init [2021-11-20 05:36:09,131 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac1000_core_init [2021-11-20 05:36:09,131 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac1000_get_hw_feature [2021-11-20 05:36:09,131 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac1000_get_hw_feature [2021-11-20 05:36:09,131 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_ethtool_setsettings [2021-11-20 05:36:09,132 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_ethtool_setsettings [2021-11-20 05:36:09,132 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc_array [2021-11-20 05:36:09,132 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc_array [2021-11-20 05:36:09,132 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2021-11-20 05:36:09,132 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2021-11-20 05:36:09,132 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2021-11-20 05:36:09,132 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2021-11-20 05:36:09,133 INFO L130 BoogieDeclarations]: Found specification of procedure enh_desc_set_rx_owner [2021-11-20 05:36:09,133 INFO L138 BoogieDeclarations]: Found implementation of procedure enh_desc_set_rx_owner [2021-11-20 05:36:09,133 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-20 05:36:09,133 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-20 05:36:09,133 INFO L130 BoogieDeclarations]: Found specification of procedure ndesc_get_tx_ls [2021-11-20 05:36:09,133 INFO L138 BoogieDeclarations]: Found implementation of procedure ndesc_get_tx_ls [2021-11-20 05:36:09,133 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_interrupt_instance_handler_2_5 [2021-11-20 05:36:09,134 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_interrupt_instance_handler_2_5 [2021-11-20 05:36:09,134 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_hw_init [2021-11-20 05:36:09,134 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_hw_init [2021-11-20 05:36:09,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-20 05:36:09,134 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac100_set_filter [2021-11-20 05:36:09,135 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac100_set_filter [2021-11-20 05:36:09,139 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2021-11-20 05:36:09,139 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2021-11-20 05:36:09,139 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-20 05:36:09,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-20 05:36:09,139 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_jumbo_frm [2021-11-20 05:36:09,140 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_jumbo_frm [2021-11-20 05:36:09,140 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_adjust_freq [2021-11-20 05:36:09,140 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_adjust_freq [2021-11-20 05:36:09,140 INFO L130 BoogieDeclarations]: Found specification of procedure phy_disconnect [2021-11-20 05:36:09,140 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_disconnect [2021-11-20 05:36:09,143 INFO L130 BoogieDeclarations]: Found specification of procedure device_may_wakeup [2021-11-20 05:36:09,143 INFO L138 BoogieDeclarations]: Found implementation of procedure device_may_wakeup [2021-11-20 05:36:09,143 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-11-20 05:36:09,143 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-11-20 05:36:09,144 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2021-11-20 05:36:09,144 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2021-11-20 05:36:09,144 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_get_time [2021-11-20 05:36:09,144 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_get_time [2021-11-20 05:36:09,144 INFO L130 BoogieDeclarations]: Found specification of procedure phy_stop [2021-11-20 05:36:09,144 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_stop [2021-11-20 05:36:09,144 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~TO~VOID [2021-11-20 05:36:09,144 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~TO~VOID [2021-11-20 05:36:09,145 INFO L130 BoogieDeclarations]: Found specification of procedure enh_desc_release_tx_desc [2021-11-20 05:36:09,145 INFO L138 BoogieDeclarations]: Found implementation of procedure enh_desc_release_tx_desc [2021-11-20 05:36:09,145 INFO L130 BoogieDeclarations]: Found specification of procedure ndesc_get_tx_timestamp_status [2021-11-20 05:36:09,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ndesc_get_tx_timestamp_status [2021-11-20 05:36:09,145 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac1000_set_eee_mode [2021-11-20 05:36:09,145 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac1000_set_eee_mode [2021-11-20 05:36:09,145 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_disable_eee_mode [2021-11-20 05:36:09,146 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_disable_eee_mode [2021-11-20 05:36:09,146 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_pci_remove [2021-11-20 05:36:09,146 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_pci_remove [2021-11-20 05:36:09,146 INFO L130 BoogieDeclarations]: Found specification of procedure ndesc_set_tx_owner [2021-11-20 05:36:09,146 INFO L138 BoogieDeclarations]: Found implementation of procedure ndesc_set_tx_owner [2021-11-20 05:36:09,146 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-11-20 05:36:09,146 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-11-20 05:36:09,147 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-20 05:36:09,147 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-20 05:36:09,147 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_pltfr_remove [2021-11-20 05:36:09,147 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_pltfr_remove [2021-11-20 05:36:09,147 INFO L130 BoogieDeclarations]: Found specification of procedure ndesc_get_tx_len [2021-11-20 05:36:09,147 INFO L138 BoogieDeclarations]: Found implementation of procedure ndesc_get_tx_len [2021-11-20 05:36:09,147 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-20 05:36:09,147 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-20 05:36:09,148 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_dma_interrupt [2021-11-20 05:36:09,148 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_dma_interrupt [2021-11-20 05:36:09,148 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~bool~0~TO~VOID [2021-11-20 05:36:09,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~bool~0~TO~VOID [2021-11-20 05:36:09,148 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-11-20 05:36:09,148 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-11-20 05:36:09,148 INFO L130 BoogieDeclarations]: Found specification of procedure ndesc_get_tx_status [2021-11-20 05:36:09,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ndesc_get_tx_status [2021-11-20 05:36:09,149 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_set_mac [2021-11-20 05:36:09,149 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_set_mac [2021-11-20 05:36:09,149 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_pltfr_resume [2021-11-20 05:36:09,149 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_pltfr_resume [2021-11-20 05:36:09,149 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-20 05:36:09,149 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-20 05:36:09,149 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_init_desc3 [2021-11-20 05:36:09,149 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_init_desc3 [2021-11-20 05:36:09,150 INFO L130 BoogieDeclarations]: Found specification of procedure usecs_to_jiffies [2021-11-20 05:36:09,150 INFO L138 BoogieDeclarations]: Found implementation of procedure usecs_to_jiffies [2021-11-20 05:36:09,150 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2021-11-20 05:36:09,150 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2021-11-20 05:36:09,150 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-20 05:36:09,150 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-20 05:36:09,150 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-20 05:36:09,150 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-20 05:36:09,151 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_get_mac_addr [2021-11-20 05:36:09,151 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_get_mac_addr [2021-11-20 05:36:09,151 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac_dma_flush_tx_fifo [2021-11-20 05:36:09,151 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac_dma_flush_tx_fifo [2021-11-20 05:36:09,151 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-20 05:36:09,151 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_open [2021-11-20 05:36:09,151 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_open [2021-11-20 05:36:09,152 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_remove [2021-11-20 05:36:09,152 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_remove [2021-11-20 05:36:09,152 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~X~int~X~int~TO~VOID [2021-11-20 05:36:09,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~X~int~X~int~TO~VOID [2021-11-20 05:36:09,152 INFO L130 BoogieDeclarations]: Found specification of procedure enh_desc_get_rx_owner [2021-11-20 05:36:09,152 INFO L138 BoogieDeclarations]: Found implementation of procedure enh_desc_get_rx_owner [2021-11-20 05:36:09,152 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync [2021-11-20 05:36:09,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync [2021-11-20 05:36:09,153 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_get_ts_info [2021-11-20 05:36:09,153 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_get_ts_info [2021-11-20 05:36:09,153 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_ethtool_setmsglevel [2021-11-20 05:36:09,153 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_ethtool_setmsglevel [2021-11-20 05:36:09,153 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-20 05:36:09,153 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-20 05:36:09,153 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_ethtool_get_regs_len [2021-11-20 05:36:09,153 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_ethtool_get_regs_len [2021-11-20 05:36:09,154 INFO L130 BoogieDeclarations]: Found specification of procedure ndesc_prepare_tx_desc [2021-11-20 05:36:09,154 INFO L138 BoogieDeclarations]: Found implementation of procedure ndesc_prepare_tx_desc [2021-11-20 05:36:09,154 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-20 05:36:09,154 INFO L130 BoogieDeclarations]: Found specification of procedure ndesc_get_rx_timestamp_status [2021-11-20 05:36:09,154 INFO L138 BoogieDeclarations]: Found implementation of procedure ndesc_get_rx_timestamp_status [2021-11-20 05:36:09,154 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_config_hw_tstamping [2021-11-20 05:36:09,154 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_config_hw_tstamping [2021-11-20 05:36:09,155 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac1000_flow_ctrl [2021-11-20 05:36:09,155 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac1000_flow_ctrl [2021-11-20 05:36:09,155 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2021-11-20 05:36:09,155 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2021-11-20 05:36:09,155 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_adjust_link [2021-11-20 05:36:09,155 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_adjust_link [2021-11-20 05:36:09,155 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_eee_init [2021-11-20 05:36:09,155 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_eee_init [2021-11-20 05:36:09,156 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-11-20 05:36:09,156 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-11-20 05:36:09,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-20 05:36:09,156 INFO L130 BoogieDeclarations]: Found specification of procedure init_dma_desc_rings [2021-11-20 05:36:09,156 INFO L138 BoogieDeclarations]: Found implementation of procedure init_dma_desc_rings [2021-11-20 05:36:09,156 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-20 05:36:09,156 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-20 05:36:09,157 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac100_dma_init [2021-11-20 05:36:09,157 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac100_dma_init [2021-11-20 05:36:09,157 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-20 05:36:09,157 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-20 05:36:09,157 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-20 05:36:09,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-20 05:36:09,157 INFO L130 BoogieDeclarations]: Found specification of procedure enh_desc_set_tx_owner [2021-11-20 05:36:09,157 INFO L138 BoogieDeclarations]: Found implementation of procedure enh_desc_set_tx_owner [2021-11-20 05:36:09,158 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-20 05:36:09,158 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-20 05:36:09,158 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_get_systime [2021-11-20 05:36:09,158 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_get_systime [2021-11-20 05:36:09,158 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_interrupt_interrupt_instance_2 [2021-11-20 05:36:09,158 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_interrupt_interrupt_instance_2 [2021-11-20 05:36:09,158 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_get_hw_features [2021-11-20 05:36:09,159 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_get_hw_features [2021-11-20 05:36:09,159 INFO L130 BoogieDeclarations]: Found specification of procedure __netdev_alloc_skb [2021-11-20 05:36:09,159 INFO L138 BoogieDeclarations]: Found implementation of procedure __netdev_alloc_skb [2021-11-20 05:36:09,159 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac_dma_stop_tx [2021-11-20 05:36:09,159 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac_dma_stop_tx [2021-11-20 05:36:09,159 INFO L130 BoogieDeclarations]: Found specification of procedure div_u64_rem [2021-11-20 05:36:09,159 INFO L138 BoogieDeclarations]: Found implementation of procedure div_u64_rem [2021-11-20 05:36:09,159 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac_dma_interrupt [2021-11-20 05:36:09,160 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac_dma_interrupt [2021-11-20 05:36:09,161 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac100_get_umac_addr [2021-11-20 05:36:09,161 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac100_get_umac_addr [2021-11-20 05:36:09,161 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_pci_probe [2021-11-20 05:36:09,161 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_pci_probe [2021-11-20 05:36:09,161 INFO L130 BoogieDeclarations]: Found specification of procedure seq_lseek [2021-11-20 05:36:09,161 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_lseek [2021-11-20 05:36:09,161 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2021-11-20 05:36:09,162 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2021-11-20 05:36:09,162 INFO L130 BoogieDeclarations]: Found specification of procedure enh_desc_get_ext_status [2021-11-20 05:36:09,162 INFO L138 BoogieDeclarations]: Found implementation of procedure enh_desc_get_ext_status [2021-11-20 05:36:09,162 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_dvr_probe [2021-11-20 05:36:09,162 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_dvr_probe [2021-11-20 05:36:09,162 INFO L130 BoogieDeclarations]: Found specification of procedure enh_desc_get_timestamp [2021-11-20 05:36:09,162 INFO L138 BoogieDeclarations]: Found implementation of procedure enh_desc_get_timestamp [2021-11-20 05:36:09,163 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2021-11-20 05:36:09,163 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2021-11-20 05:36:09,163 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac_dma_stop_rx [2021-11-20 05:36:09,163 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac_dma_stop_rx [2021-11-20 05:36:09,163 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_resume [2021-11-20 05:36:09,163 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_resume [2021-11-20 05:36:09,163 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac100_dma_diagnostic_fr [2021-11-20 05:36:09,163 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac100_dma_diagnostic_fr [2021-11-20 05:36:09,164 INFO L130 BoogieDeclarations]: Found specification of procedure free_dma_desc_resources [2021-11-20 05:36:09,164 INFO L138 BoogieDeclarations]: Found implementation of procedure free_dma_desc_resources [2021-11-20 05:36:09,164 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_mdio_reset [2021-11-20 05:36:09,164 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_mdio_reset [2021-11-20 05:36:09,164 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_clean_desc3 [2021-11-20 05:36:09,164 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_clean_desc3 [2021-11-20 05:36:09,164 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-20 05:36:09,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-20 05:36:09,165 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_enable [2021-11-20 05:36:09,165 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_enable [2021-11-20 05:36:09,165 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_ethtool_op_set_eee [2021-11-20 05:36:09,165 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_ethtool_op_set_eee [2021-11-20 05:36:09,165 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-20 05:36:09,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-20 05:36:09,165 INFO L130 BoogieDeclarations]: Found specification of procedure ndesc_init_tx_desc [2021-11-20 05:36:09,166 INFO L138 BoogieDeclarations]: Found implementation of procedure ndesc_init_tx_desc [2021-11-20 05:36:09,166 INFO L130 BoogieDeclarations]: Found specification of procedure enh_desc_init_tx_desc [2021-11-20 05:36:09,166 INFO L138 BoogieDeclarations]: Found implementation of procedure enh_desc_init_tx_desc [2021-11-20 05:36:09,166 INFO L130 BoogieDeclarations]: Found specification of procedure enh_desc_close_tx_desc [2021-11-20 05:36:09,166 INFO L138 BoogieDeclarations]: Found implementation of procedure enh_desc_close_tx_desc [2021-11-20 05:36:09,166 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac100_irq_status [2021-11-20 05:36:09,166 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac100_irq_status [2021-11-20 05:36:09,166 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_set_wol [2021-11-20 05:36:09,167 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_set_wol [2021-11-20 05:36:09,167 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_adjust_systime [2021-11-20 05:36:09,167 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_adjust_systime [2021-11-20 05:36:09,167 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac1000_set_umac_addr [2021-11-20 05:36:09,167 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac1000_set_umac_addr [2021-11-20 05:36:09,167 INFO L130 BoogieDeclarations]: Found specification of procedure ndesc_clear_tx_ic [2021-11-20 05:36:09,167 INFO L138 BoogieDeclarations]: Found implementation of procedure ndesc_clear_tx_ic [2021-11-20 05:36:09,167 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2021-11-20 05:36:09,168 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2021-11-20 05:36:09,168 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2021-11-20 05:36:09,168 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2021-11-20 05:36:09,168 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-11-20 05:36:09,168 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-11-20 05:36:09,168 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_unregister_platform [2021-11-20 05:36:09,168 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_unregister_platform [2021-11-20 05:36:09,168 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac1000_irq_status [2021-11-20 05:36:09,169 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac1000_irq_status [2021-11-20 05:36:09,169 INFO L130 BoogieDeclarations]: Found specification of procedure ndesc_get_timestamp [2021-11-20 05:36:09,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ndesc_get_timestamp [2021-11-20 05:36:09,169 INFO L130 BoogieDeclarations]: Found specification of procedure ndesc_get_rx_owner [2021-11-20 05:36:09,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ndesc_get_rx_owner [2021-11-20 05:36:09,169 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-20 05:36:09,169 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-20 05:36:09,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-20 05:36:09,170 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_set_rx_mode [2021-11-20 05:36:09,170 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_set_rx_mode [2021-11-20 05:36:09,170 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2021-11-20 05:36:09,170 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2021-11-20 05:36:09,170 INFO L130 BoogieDeclarations]: Found specification of procedure seq_read [2021-11-20 05:36:09,170 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_read [2021-11-20 05:36:09,170 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2021-11-20 05:36:09,171 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2021-11-20 05:36:09,171 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_display_ring [2021-11-20 05:36:09,171 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_display_ring [2021-11-20 05:36:09,171 INFO L130 BoogieDeclarations]: Found specification of procedure bitrev32 [2021-11-20 05:36:09,171 INFO L138 BoogieDeclarations]: Found implementation of procedure bitrev32 [2021-11-20 05:36:09,171 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_ethtool_getdrvinfo [2021-11-20 05:36:09,171 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_ethtool_getdrvinfo [2021-11-20 05:36:09,172 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_config_sub_second_increment [2021-11-20 05:36:09,172 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_config_sub_second_increment [2021-11-20 05:36:09,172 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-20 05:36:09,172 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-20 05:36:09,172 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_check_if_running [2021-11-20 05:36:09,172 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_check_if_running [2021-11-20 05:36:09,172 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac1000_get_umac_addr [2021-11-20 05:36:09,172 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac1000_get_umac_addr [2021-11-20 05:36:09,173 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_ethtool_op_get_eee [2021-11-20 05:36:09,173 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_ethtool_op_get_eee [2021-11-20 05:36:09,173 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac1000_pmt [2021-11-20 05:36:09,173 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac1000_pmt [2021-11-20 05:36:09,173 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2021-11-20 05:36:09,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2021-11-20 05:36:09,173 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_schedule [2021-11-20 05:36:09,173 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_schedule [2021-11-20 05:36:09,174 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-11-20 05:36:09,174 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-11-20 05:36:09,174 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_clk_disable_unprepare_21 [2021-11-20 05:36:09,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_clk_disable_unprepare_21 [2021-11-20 05:36:09,174 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_refill_desc3 [2021-11-20 05:36:09,174 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_refill_desc3 [2021-11-20 05:36:09,174 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_clear_descriptors [2021-11-20 05:36:09,175 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_clear_descriptors [2021-11-20 05:36:09,175 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~TO~int [2021-11-20 05:36:09,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~TO~int [2021-11-20 05:36:09,175 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac100_flow_ctrl [2021-11-20 05:36:09,175 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac100_flow_ctrl [2021-11-20 05:36:09,175 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-20 05:36:09,175 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_sysfs_dma_cap_open [2021-11-20 05:36:09,175 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_sysfs_dma_cap_open [2021-11-20 05:36:09,176 INFO L130 BoogieDeclarations]: Found specification of procedure phy_start [2021-11-20 05:36:09,176 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_start [2021-11-20 05:36:09,176 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2021-11-20 05:36:09,176 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2021-11-20 05:36:09,176 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq [2021-11-20 05:36:09,176 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq [2021-11-20 05:36:09,176 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-20 05:36:09,176 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-20 05:36:09,177 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2021-11-20 05:36:09,177 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2021-11-20 05:36:09,177 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_disable_dma_irq [2021-11-20 05:36:09,177 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_disable_dma_irq [2021-11-20 05:36:09,177 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-11-20 05:36:09,177 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-11-20 05:36:09,177 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-20 05:36:09,181 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-20 05:36:09,181 INFO L130 BoogieDeclarations]: Found specification of procedure single_open [2021-11-20 05:36:09,181 INFO L138 BoogieDeclarations]: Found implementation of procedure single_open [2021-11-20 05:36:09,182 INFO L130 BoogieDeclarations]: Found specification of procedure irq_set_irq_wake [2021-11-20 05:36:09,182 INFO L138 BoogieDeclarations]: Found implementation of procedure irq_set_irq_wake [2021-11-20 05:36:09,182 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_dvr_remove [2021-11-20 05:36:09,182 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_dvr_remove [2021-11-20 05:36:09,182 INFO L130 BoogieDeclarations]: Found specification of procedure enh_desc_get_tx_status [2021-11-20 05:36:09,182 INFO L138 BoogieDeclarations]: Found implementation of procedure enh_desc_get_tx_status [2021-11-20 05:36:09,182 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac_dma_start_rx [2021-11-20 05:36:09,183 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac_dma_start_rx [2021-11-20 05:36:09,183 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~VOID [2021-11-20 05:36:09,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~VOID [2021-11-20 05:36:09,183 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-20 05:36:09,183 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-20 05:36:09,183 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_is_jumbo_frm [2021-11-20 05:36:09,183 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_is_jumbo_frm [2021-11-20 05:36:09,183 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_create_file [2021-11-20 05:36:09,184 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_create_file [2021-11-20 05:36:09,184 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_sysfs_ring_open [2021-11-20 05:36:09,184 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_sysfs_ring_open [2021-11-20 05:36:09,184 INFO L130 BoogieDeclarations]: Found specification of procedure enh_desc_get_tx_owner [2021-11-20 05:36:09,184 INFO L138 BoogieDeclarations]: Found implementation of procedure enh_desc_get_tx_owner [2021-11-20 05:36:09,184 INFO L130 BoogieDeclarations]: Found specification of procedure single_release [2021-11-20 05:36:09,184 INFO L138 BoogieDeclarations]: Found implementation of procedure single_release [2021-11-20 05:36:09,185 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_irq_byname [2021-11-20 05:36:09,185 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_irq_byname [2021-11-20 05:36:09,185 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_tx_err [2021-11-20 05:36:09,185 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_tx_err [2021-11-20 05:36:09,185 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-11-20 05:36:09,185 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-11-20 05:36:09,185 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac_dma_start_tx [2021-11-20 05:36:09,185 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac_dma_start_tx [2021-11-20 05:36:09,186 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2021-11-20 05:36:09,186 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2021-11-20 05:36:09,186 INFO L130 BoogieDeclarations]: Found specification of procedure enh_desc_prepare_tx_desc [2021-11-20 05:36:09,186 INFO L138 BoogieDeclarations]: Found implementation of procedure enh_desc_prepare_tx_desc [2021-11-20 05:36:09,186 INFO L130 BoogieDeclarations]: Found specification of procedure ndesc_get_rx_frame_len [2021-11-20 05:36:09,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ndesc_get_rx_frame_len [2021-11-20 05:36:09,186 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq_18 [2021-11-20 05:36:09,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq_18 [2021-11-20 05:36:09,187 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq_17 [2021-11-20 05:36:09,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq_17 [2021-11-20 05:36:09,187 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq_16 [2021-11-20 05:36:09,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq_16 [2021-11-20 05:36:09,187 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2021-11-20 05:36:09,187 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2021-11-20 05:36:09,187 INFO L130 BoogieDeclarations]: Found specification of procedure ndesc_tx_set_on_chain [2021-11-20 05:36:09,188 INFO L138 BoogieDeclarations]: Found implementation of procedure ndesc_tx_set_on_chain [2021-11-20 05:36:09,188 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_get_pauseparam [2021-11-20 05:36:09,188 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_get_pauseparam [2021-11-20 05:36:09,188 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-20 05:36:09,188 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-20 05:36:09,188 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2021-11-20 05:36:09,188 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2021-11-20 05:36:09,189 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac100_dump_dma_regs [2021-11-20 05:36:09,189 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac100_dump_dma_regs [2021-11-20 05:36:09,189 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2021-11-20 05:36:09,189 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2021-11-20 05:36:09,189 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_ethtool_getsettings [2021-11-20 05:36:09,189 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_ethtool_getsettings [2021-11-20 05:36:09,189 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-11-20 05:36:09,189 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-11-20 05:36:09,190 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-20 05:36:09,190 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-20 05:36:09,190 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_set_coalesce [2021-11-20 05:36:09,190 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_set_coalesce [2021-11-20 05:36:09,190 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-11-20 05:36:09,190 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-11-20 05:36:09,190 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac_disable_dma_irq [2021-11-20 05:36:09,191 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac_disable_dma_irq [2021-11-20 05:36:09,191 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_get_wol [2021-11-20 05:36:09,191 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_get_wol [2021-11-20 05:36:09,191 INFO L130 BoogieDeclarations]: Found specification of procedure enh_desc_clear_tx_ic [2021-11-20 05:36:09,191 INFO L138 BoogieDeclarations]: Found implementation of procedure enh_desc_clear_tx_ic [2021-11-20 05:36:09,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-20 05:36:09,191 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-11-20 05:36:09,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-11-20 05:36:09,192 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_config [2021-11-20 05:36:09,192 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_config [2021-11-20 05:36:09,192 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_adjust_time [2021-11-20 05:36:09,192 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_adjust_time [2021-11-20 05:36:09,192 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-20 05:36:09,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-20 05:36:09,192 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2021-11-20 05:36:09,193 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2021-11-20 05:36:09,193 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_pci_resume [2021-11-20 05:36:09,193 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_pci_resume [2021-11-20 05:36:11,085 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 05:36:11,097 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 05:36:11,332 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-20 05:36:38,983 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 05:36:39,026 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 05:36:39,026 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-20 05:36:39,036 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:36:39 BoogieIcfgContainer [2021-11-20 05:36:39,037 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 05:36:39,038 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 05:36:39,039 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 05:36:39,042 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 05:36:39,042 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 05:35:56" (1/3) ... [2021-11-20 05:36:39,043 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76b0269f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 05:36:39, skipping insertion in model container [2021-11-20 05:36:39,043 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:36:06" (2/3) ... [2021-11-20 05:36:39,043 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76b0269f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 05:36:39, skipping insertion in model container [2021-11-20 05:36:39,043 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:36:39" (3/3) ... [2021-11-20 05:36:39,044 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_linux-drivers-clk1_drivers-net-ethernet-stmicro-stmmac-stmmac.cil.i [2021-11-20 05:36:39,049 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 05:36:39,050 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-20 05:36:39,112 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 05:36:39,119 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 [2021-11-20 05:36:39,120 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-20 05:36:39,243 INFO L276 IsEmpty]: Start isEmpty. Operand has 4999 states, 3440 states have (on average 1.2936046511627908) internal successors, (4450), 3579 states have internal predecessors, (4450), 1266 states have call successors, (1266), 292 states have call predecessors, (1266), 291 states have return successors, (1251), 1175 states have call predecessors, (1251), 1251 states have call successors, (1251) [2021-11-20 05:36:39,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-20 05:36:39,249 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:36:39,250 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-20 05:36:39,251 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] === [2021-11-20 05:36:39,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:36:39,257 INFO L85 PathProgramCache]: Analyzing trace with hash 1399050847, now seen corresponding path program 1 times [2021-11-20 05:36:39,267 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:36:39,268 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045349556] [2021-11-20 05:36:39,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:36:39,269 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:36:40,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:41,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 05:36:41,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:41,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:36:41,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:41,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-20 05:36:41,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:41,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-11-20 05:36:41,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:41,242 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-20 05:36:41,243 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:36:41,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045349556] [2021-11-20 05:36:41,249 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1045349556] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:36:41,249 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:36:41,249 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 05:36:41,251 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481796589] [2021-11-20 05:36:41,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:36:41,256 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 05:36:41,256 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:36:41,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 05:36:41,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-20 05:36:41,308 INFO L87 Difference]: Start difference. First operand has 4999 states, 3440 states have (on average 1.2936046511627908) internal successors, (4450), 3579 states have internal predecessors, (4450), 1266 states have call successors, (1266), 292 states have call predecessors, (1266), 291 states have return successors, (1251), 1175 states have call predecessors, (1251), 1251 states have call successors, (1251) Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-20 05:36:42,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:36:42,386 INFO L93 Difference]: Finished difference Result 9961 states and 14024 transitions. [2021-11-20 05:36:42,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 05:36:42,389 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 39 [2021-11-20 05:36:42,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:36:42,471 INFO L225 Difference]: With dead ends: 9961 [2021-11-20 05:36:42,471 INFO L226 Difference]: Without dead ends: 4977 [2021-11-20 05:36:42,523 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-20 05:36:42,529 INFO L933 BasicCegarLoop]: 6955 mSDtfsCounter, 6946 mSDsluCounter, 13907 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6948 SdHoareTripleChecker+Valid, 20862 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 05:36:42,530 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6948 Valid, 20862 Invalid, 10 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 05:36:42,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4977 states. [2021-11-20 05:36:42,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4977 to 4977. [2021-11-20 05:36:42,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4977 states, 3435 states have (on average 1.2882096069868996) internal successors, (4425), 3561 states have internal predecessors, (4425), 1251 states have call successors, (1251), 292 states have call predecessors, (1251), 290 states have return successors, (1248), 1172 states have call predecessors, (1248), 1248 states have call successors, (1248) [2021-11-20 05:36:43,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4977 states to 4977 states and 6924 transitions. [2021-11-20 05:36:43,015 INFO L78 Accepts]: Start accepts. Automaton has 4977 states and 6924 transitions. Word has length 39 [2021-11-20 05:36:43,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:36:43,017 INFO L470 AbstractCegarLoop]: Abstraction has 4977 states and 6924 transitions. [2021-11-20 05:36:43,017 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-20 05:36:43,018 INFO L276 IsEmpty]: Start isEmpty. Operand 4977 states and 6924 transitions. [2021-11-20 05:36:43,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-20 05:36:43,022 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:36:43,022 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-20 05:36:43,022 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-20 05:36:43,023 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] === [2021-11-20 05:36:43,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:36:43,023 INFO L85 PathProgramCache]: Analyzing trace with hash -1062149609, now seen corresponding path program 1 times [2021-11-20 05:36:43,024 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:36:43,024 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172687817] [2021-11-20 05:36:43,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:36:43,024 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:36:43,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:44,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 05:36:44,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:44,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:36:44,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:44,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-20 05:36:44,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:44,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-11-20 05:36:44,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:44,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-11-20 05:36:44,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:44,177 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-20 05:36:44,178 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:36:44,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172687817] [2021-11-20 05:36:44,181 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [172687817] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:36:44,184 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:36:44,185 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 05:36:44,185 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099767514] [2021-11-20 05:36:44,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:36:44,187 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 05:36:44,188 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:36:44,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 05:36:44,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-20 05:36:44,189 INFO L87 Difference]: Start difference. First operand 4977 states and 6924 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-11-20 05:36:44,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:36:44,829 INFO L93 Difference]: Finished difference Result 9901 states and 14010 transitions. [2021-11-20 05:36:44,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 05:36:44,830 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 44 [2021-11-20 05:36:44,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:36:44,925 INFO L225 Difference]: With dead ends: 9901 [2021-11-20 05:36:44,925 INFO L226 Difference]: Without dead ends: 8847 [2021-11-20 05:36:44,943 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-20 05:36:44,944 INFO L933 BasicCegarLoop]: 8524 mSDtfsCounter, 7024 mSDsluCounter, 24002 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7024 SdHoareTripleChecker+Valid, 32526 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 05:36:44,945 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7024 Valid, 32526 Invalid, 11 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 05:36:44,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8847 states. [2021-11-20 05:36:45,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8847 to 8816. [2021-11-20 05:36:45,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8816 states, 6022 states have (on average 1.2864496844902027) internal successors, (7747), 6260 states have internal predecessors, (7747), 2230 states have call successors, (2230), 567 states have call predecessors, (2230), 563 states have return successors, (2459), 2079 states have call predecessors, (2459), 2228 states have call successors, (2459) [2021-11-20 05:36:45,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8816 states to 8816 states and 12436 transitions. [2021-11-20 05:36:45,563 INFO L78 Accepts]: Start accepts. Automaton has 8816 states and 12436 transitions. Word has length 44 [2021-11-20 05:36:45,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:36:45,563 INFO L470 AbstractCegarLoop]: Abstraction has 8816 states and 12436 transitions. [2021-11-20 05:36:45,564 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-11-20 05:36:45,564 INFO L276 IsEmpty]: Start isEmpty. Operand 8816 states and 12436 transitions. [2021-11-20 05:36:45,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1053 [2021-11-20 05:36:45,716 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:36:45,718 INFO L514 BasicCegarLoop]: trace histogram [36, 36, 36, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 12, 12, 8, 8, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:36:45,718 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-20 05:36:45,718 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] === [2021-11-20 05:36:45,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:36:45,719 INFO L85 PathProgramCache]: Analyzing trace with hash -697889187, now seen corresponding path program 1 times [2021-11-20 05:36:45,720 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:36:45,720 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546833671] [2021-11-20 05:36:45,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:36:45,720 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:36:46,353 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 05:36:46,358 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1600057388] [2021-11-20 05:36:46,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:36:46,359 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:36:46,359 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_950c983c-4034-4359-b137-ca2cd3eda113/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:36:46,366 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_950c983c-4034-4359-b137-ca2cd3eda113/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 05:36:46,398 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_950c983c-4034-4359-b137-ca2cd3eda113/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-20 05:36:51,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:51,789 INFO L263 TraceCheckSpWp]: Trace formula consists of 21185 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-20 05:36:51,873 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:36:54,247 INFO L134 CoverageAnalysis]: Checked inductivity of 4788 backedges. 1515 proven. 0 refuted. 0 times theorem prover too weak. 3273 trivial. 0 not checked. [2021-11-20 05:36:54,247 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 05:36:54,248 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:36:54,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546833671] [2021-11-20 05:36:54,248 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 05:36:54,249 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1600057388] [2021-11-20 05:36:54,249 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1600057388] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:36:54,249 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:36:54,249 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-20 05:36:54,250 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046515148] [2021-11-20 05:36:54,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:36:54,253 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 05:36:54,253 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:36:54,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 05:36:54,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-20 05:36:54,254 INFO L87 Difference]: Start difference. First operand 8816 states and 12436 transitions. Second operand has 6 states, 6 states have (on average 72.66666666666667) internal successors, (436), 6 states have internal predecessors, (436), 4 states have call successors, (127), 2 states have call predecessors, (127), 4 states have return successors, (125), 4 states have call predecessors, (125), 4 states have call successors, (125) [2021-11-20 05:36:54,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:36:54,962 INFO L93 Difference]: Finished difference Result 16454 states and 23119 transitions. [2021-11-20 05:36:54,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 05:36:54,963 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 72.66666666666667) internal successors, (436), 6 states have internal predecessors, (436), 4 states have call successors, (127), 2 states have call predecessors, (127), 4 states have return successors, (125), 4 states have call predecessors, (125), 4 states have call successors, (125) Word has length 1052 [2021-11-20 05:36:54,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:36:55,057 INFO L225 Difference]: With dead ends: 16454 [2021-11-20 05:36:55,057 INFO L226 Difference]: Without dead ends: 8820 [2021-11-20 05:36:55,106 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1053 GetRequests, 1047 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-11-20 05:36:55,107 INFO L933 BasicCegarLoop]: 6911 mSDtfsCounter, 19 mSDsluCounter, 27607 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 34518 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 05:36:55,108 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 34518 Invalid, 56 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-20 05:36:55,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8820 states. [2021-11-20 05:36:55,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8820 to 8820. [2021-11-20 05:36:55,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8820 states, 6024 states have (on average 1.2863545816733069) internal successors, (7749), 6263 states have internal predecessors, (7749), 2231 states have call successors, (2231), 567 states have call predecessors, (2231), 564 states have return successors, (2462), 2080 states have call predecessors, (2462), 2229 states have call successors, (2462) [2021-11-20 05:36:55,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8820 states to 8820 states and 12442 transitions. [2021-11-20 05:36:55,676 INFO L78 Accepts]: Start accepts. Automaton has 8820 states and 12442 transitions. Word has length 1052 [2021-11-20 05:36:55,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:36:55,679 INFO L470 AbstractCegarLoop]: Abstraction has 8820 states and 12442 transitions. [2021-11-20 05:36:55,679 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 72.66666666666667) internal successors, (436), 6 states have internal predecessors, (436), 4 states have call successors, (127), 2 states have call predecessors, (127), 4 states have return successors, (125), 4 states have call predecessors, (125), 4 states have call successors, (125) [2021-11-20 05:36:55,679 INFO L276 IsEmpty]: Start isEmpty. Operand 8820 states and 12442 transitions. [2021-11-20 05:36:55,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1059 [2021-11-20 05:36:55,814 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:36:55,815 INFO L514 BasicCegarLoop]: trace histogram [36, 36, 36, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 13, 13, 8, 8, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:36:55,893 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_950c983c-4034-4359-b137-ca2cd3eda113/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-20 05:36:56,030 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_950c983c-4034-4359-b137-ca2cd3eda113/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2021-11-20 05:36:56,030 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] === [2021-11-20 05:36:56,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:36:56,031 INFO L85 PathProgramCache]: Analyzing trace with hash 1780813479, now seen corresponding path program 1 times [2021-11-20 05:36:56,031 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:36:56,031 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551741899] [2021-11-20 05:36:56,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:36:56,032 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:36:56,705 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 05:36:56,705 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1861940038] [2021-11-20 05:36:56,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:36:56,706 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:36:56,706 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_950c983c-4034-4359-b137-ca2cd3eda113/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:36:56,707 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_950c983c-4034-4359-b137-ca2cd3eda113/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 05:36:56,730 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_950c983c-4034-4359-b137-ca2cd3eda113/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-20 05:37:00,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:37:00,919 INFO L263 TraceCheckSpWp]: Trace formula consists of 21201 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-20 05:37:01,068 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:37:03,119 INFO L134 CoverageAnalysis]: Checked inductivity of 4815 backedges. 1515 proven. 0 refuted. 0 times theorem prover too weak. 3300 trivial. 0 not checked. [2021-11-20 05:37:03,119 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 05:37:03,119 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:37:03,120 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551741899] [2021-11-20 05:37:03,120 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 05:37:03,120 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1861940038] [2021-11-20 05:37:03,120 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1861940038] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:37:03,120 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:37:03,121 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-20 05:37:03,121 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193783724] [2021-11-20 05:37:03,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:37:03,124 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 05:37:03,124 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:37:03,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 05:37:03,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-20 05:37:03,126 INFO L87 Difference]: Start difference. First operand 8820 states and 12442 transitions. Second operand has 6 states, 6 states have (on average 73.0) internal successors, (438), 6 states have internal predecessors, (438), 4 states have call successors, (128), 2 states have call predecessors, (128), 4 states have return successors, (126), 4 states have call predecessors, (126), 4 states have call successors, (126) [2021-11-20 05:37:03,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:37:03,826 INFO L93 Difference]: Finished difference Result 16462 states and 23130 transitions. [2021-11-20 05:37:03,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 05:37:03,827 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 73.0) internal successors, (438), 6 states have internal predecessors, (438), 4 states have call successors, (128), 2 states have call predecessors, (128), 4 states have return successors, (126), 4 states have call predecessors, (126), 4 states have call successors, (126) Word has length 1058 [2021-11-20 05:37:03,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:37:04,005 INFO L225 Difference]: With dead ends: 16462 [2021-11-20 05:37:04,006 INFO L226 Difference]: Without dead ends: 8824 [2021-11-20 05:37:04,053 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1059 GetRequests, 1053 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-11-20 05:37:04,056 INFO L933 BasicCegarLoop]: 6912 mSDtfsCounter, 19 mSDsluCounter, 27613 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 34525 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 05:37:04,058 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 34525 Invalid, 49 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-20 05:37:04,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8824 states. [2021-11-20 05:37:04,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8824 to 8824. [2021-11-20 05:37:04,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8824 states, 6026 states have (on average 1.286259541984733) internal successors, (7751), 6266 states have internal predecessors, (7751), 2232 states have call successors, (2232), 567 states have call predecessors, (2232), 565 states have return successors, (2464), 2081 states have call predecessors, (2464), 2230 states have call successors, (2464) [2021-11-20 05:37:04,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8824 states to 8824 states and 12447 transitions. [2021-11-20 05:37:04,530 INFO L78 Accepts]: Start accepts. Automaton has 8824 states and 12447 transitions. Word has length 1058 [2021-11-20 05:37:04,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:37:04,537 INFO L470 AbstractCegarLoop]: Abstraction has 8824 states and 12447 transitions. [2021-11-20 05:37:04,537 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 73.0) internal successors, (438), 6 states have internal predecessors, (438), 4 states have call successors, (128), 2 states have call predecessors, (128), 4 states have return successors, (126), 4 states have call predecessors, (126), 4 states have call successors, (126) [2021-11-20 05:37:04,537 INFO L276 IsEmpty]: Start isEmpty. Operand 8824 states and 12447 transitions. [2021-11-20 05:37:04,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1067 [2021-11-20 05:37:04,671 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:37:04,672 INFO L514 BasicCegarLoop]: trace histogram [36, 36, 36, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 14, 14, 8, 8, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:37:04,766 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_950c983c-4034-4359-b137-ca2cd3eda113/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-20 05:37:04,894 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_950c983c-4034-4359-b137-ca2cd3eda113/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:37:04,894 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] === [2021-11-20 05:37:04,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:37:04,895 INFO L85 PathProgramCache]: Analyzing trace with hash -367793566, now seen corresponding path program 1 times [2021-11-20 05:37:04,895 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:37:04,896 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103922097] [2021-11-20 05:37:04,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:37:04,896 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:37:05,509 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 05:37:05,509 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [851272805] [2021-11-20 05:37:05,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:37:05,510 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:37:05,510 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_950c983c-4034-4359-b137-ca2cd3eda113/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:37:05,511 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_950c983c-4034-4359-b137-ca2cd3eda113/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 05:37:05,535 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_950c983c-4034-4359-b137-ca2cd3eda113/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-20 05:37:09,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:37:09,820 INFO L263 TraceCheckSpWp]: Trace formula consists of 21234 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-20 05:37:09,853 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:37:11,678 INFO L134 CoverageAnalysis]: Checked inductivity of 4851 backedges. 1490 proven. 0 refuted. 0 times theorem prover too weak. 3361 trivial. 0 not checked. [2021-11-20 05:37:11,678 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 05:37:11,678 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:37:11,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1103922097] [2021-11-20 05:37:11,678 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 05:37:11,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [851272805] [2021-11-20 05:37:11,679 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [851272805] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:37:11,679 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:37:11,679 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 05:37:11,679 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878016162] [2021-11-20 05:37:11,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:37:11,680 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 05:37:11,681 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:37:11,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 05:37:11,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-20 05:37:11,682 INFO L87 Difference]: Start difference. First operand 8824 states and 12447 transitions. Second operand has 5 states, 5 states have (on average 81.8) internal successors, (409), 4 states have internal predecessors, (409), 2 states have call successors, (118), 2 states have call predecessors, (118), 3 states have return successors, (116), 3 states have call predecessors, (116), 2 states have call successors, (116) [2021-11-20 05:37:12,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:37:12,143 INFO L93 Difference]: Finished difference Result 17695 states and 25466 transitions. [2021-11-20 05:37:12,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 05:37:12,144 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 81.8) internal successors, (409), 4 states have internal predecessors, (409), 2 states have call successors, (118), 2 states have call predecessors, (118), 3 states have return successors, (116), 3 states have call predecessors, (116), 2 states have call successors, (116) Word has length 1066 [2021-11-20 05:37:12,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:37:12,211 INFO L225 Difference]: With dead ends: 17695 [2021-11-20 05:37:12,211 INFO L226 Difference]: Without dead ends: 8904 [2021-11-20 05:37:12,257 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1065 GetRequests, 1062 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-20 05:37:12,261 INFO L933 BasicCegarLoop]: 6935 mSDtfsCounter, 130 mSDsluCounter, 20647 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 27582 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 05:37:12,261 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [172 Valid, 27582 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 05:37:12,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8904 states. [2021-11-20 05:37:12,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8904 to 8832. [2021-11-20 05:37:12,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8832 states, 6032 states have (on average 1.285974801061008) internal successors, (7757), 6272 states have internal predecessors, (7757), 2232 states have call successors, (2232), 567 states have call predecessors, (2232), 567 states have return successors, (2468), 2083 states have call predecessors, (2468), 2230 states have call successors, (2468) [2021-11-20 05:37:12,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8832 states to 8832 states and 12457 transitions. [2021-11-20 05:37:12,815 INFO L78 Accepts]: Start accepts. Automaton has 8832 states and 12457 transitions. Word has length 1066 [2021-11-20 05:37:12,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:37:12,818 INFO L470 AbstractCegarLoop]: Abstraction has 8832 states and 12457 transitions. [2021-11-20 05:37:12,819 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 81.8) internal successors, (409), 4 states have internal predecessors, (409), 2 states have call successors, (118), 2 states have call predecessors, (118), 3 states have return successors, (116), 3 states have call predecessors, (116), 2 states have call successors, (116) [2021-11-20 05:37:12,819 INFO L276 IsEmpty]: Start isEmpty. Operand 8832 states and 12457 transitions. [2021-11-20 05:37:12,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1082 [2021-11-20 05:37:12,894 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:37:12,895 INFO L514 BasicCegarLoop]: trace histogram [36, 36, 36, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 14, 14, 8, 8, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:37:12,981 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_950c983c-4034-4359-b137-ca2cd3eda113/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-20 05:37:13,122 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_950c983c-4034-4359-b137-ca2cd3eda113/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:37:13,122 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] === [2021-11-20 05:37:13,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:37:13,123 INFO L85 PathProgramCache]: Analyzing trace with hash 1909309866, now seen corresponding path program 1 times [2021-11-20 05:37:13,123 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:37:13,123 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053590968] [2021-11-20 05:37:13,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:37:13,124 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:37:13,585 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 05:37:13,585 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1951746284] [2021-11-20 05:37:13,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:37:13,585 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:37:13,586 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_950c983c-4034-4359-b137-ca2cd3eda113/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:37:13,587 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_950c983c-4034-4359-b137-ca2cd3eda113/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 05:37:13,606 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_950c983c-4034-4359-b137-ca2cd3eda113/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-20 05:37:17,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:37:18,033 INFO L263 TraceCheckSpWp]: Trace formula consists of 21375 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-20 05:37:18,066 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:37:20,342 INFO L134 CoverageAnalysis]: Checked inductivity of 4914 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4914 trivial. 0 not checked. [2021-11-20 05:37:20,343 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 05:37:20,343 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:37:20,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053590968] [2021-11-20 05:37:20,343 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 05:37:20,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1951746284] [2021-11-20 05:37:20,343 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1951746284] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:37:20,343 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:37:20,344 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 05:37:20,344 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630840143] [2021-11-20 05:37:20,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:37:20,346 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 05:37:20,346 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:37:20,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 05:37:20,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-20 05:37:20,347 INFO L87 Difference]: Start difference. First operand 8832 states and 12457 transitions. Second operand has 5 states, 5 states have (on average 79.4) internal successors, (397), 5 states have internal predecessors, (397), 1 states have call successors, (116), 1 states have call predecessors, (116), 1 states have return successors, (114), 1 states have call predecessors, (114), 1 states have call successors, (114) [2021-11-20 05:37:23,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:37:23,206 INFO L93 Difference]: Finished difference Result 23113 states and 33198 transitions. [2021-11-20 05:37:23,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 05:37:23,207 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 79.4) internal successors, (397), 5 states have internal predecessors, (397), 1 states have call successors, (116), 1 states have call predecessors, (116), 1 states have return successors, (114), 1 states have call predecessors, (114), 1 states have call successors, (114) Word has length 1081 [2021-11-20 05:37:23,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:37:23,308 INFO L225 Difference]: With dead ends: 23113 [2021-11-20 05:37:23,309 INFO L226 Difference]: Without dead ends: 14299 [2021-11-20 05:37:23,345 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1082 GetRequests, 1077 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-20 05:37:23,347 INFO L933 BasicCegarLoop]: 10899 mSDtfsCounter, 5503 mSDsluCounter, 27454 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1890 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5880 SdHoareTripleChecker+Valid, 38353 SdHoareTripleChecker+Invalid, 1908 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1890 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2021-11-20 05:37:23,347 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5880 Valid, 38353 Invalid, 1908 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1890 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2021-11-20 05:37:23,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14299 states. [2021-11-20 05:37:24,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14299 to 8835. [2021-11-20 05:37:24,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8835 states, 6035 states have (on average 1.2858326429163214) internal successors, (7760), 6275 states have internal predecessors, (7760), 2232 states have call successors, (2232), 567 states have call predecessors, (2232), 567 states have return successors, (2468), 2083 states have call predecessors, (2468), 2230 states have call successors, (2468) [2021-11-20 05:37:24,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8835 states to 8835 states and 12460 transitions. [2021-11-20 05:37:24,069 INFO L78 Accepts]: Start accepts. Automaton has 8835 states and 12460 transitions. Word has length 1081 [2021-11-20 05:37:24,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:37:24,070 INFO L470 AbstractCegarLoop]: Abstraction has 8835 states and 12460 transitions. [2021-11-20 05:37:24,071 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 79.4) internal successors, (397), 5 states have internal predecessors, (397), 1 states have call successors, (116), 1 states have call predecessors, (116), 1 states have return successors, (114), 1 states have call predecessors, (114), 1 states have call successors, (114) [2021-11-20 05:37:24,071 INFO L276 IsEmpty]: Start isEmpty. Operand 8835 states and 12460 transitions. [2021-11-20 05:37:24,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1082 [2021-11-20 05:37:24,135 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:37:24,136 INFO L514 BasicCegarLoop]: trace histogram [36, 36, 36, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 14, 14, 8, 8, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:37:24,226 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_950c983c-4034-4359-b137-ca2cd3eda113/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-20 05:37:24,350 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_950c983c-4034-4359-b137-ca2cd3eda113/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:37:24,350 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] === [2021-11-20 05:37:24,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:37:24,351 INFO L85 PathProgramCache]: Analyzing trace with hash -1393992024, now seen corresponding path program 1 times [2021-11-20 05:37:24,352 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:37:24,352 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775190368] [2021-11-20 05:37:24,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:37:24,352 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:37:25,025 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 05:37:25,026 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [701779447] [2021-11-20 05:37:25,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:37:25,026 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:37:25,027 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_950c983c-4034-4359-b137-ca2cd3eda113/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:37:25,028 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_950c983c-4034-4359-b137-ca2cd3eda113/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 05:37:25,035 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_950c983c-4034-4359-b137-ca2cd3eda113/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-20 05:37:29,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:37:29,341 INFO L263 TraceCheckSpWp]: Trace formula consists of 21374 conjuncts, 76 conjunts are in the unsatisfiable core [2021-11-20 05:37:29,383 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:37:32,726 INFO L134 CoverageAnalysis]: Checked inductivity of 4914 backedges. 1388 proven. 66 refuted. 0 times theorem prover too weak. 3460 trivial. 0 not checked. [2021-11-20 05:37:32,727 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 05:37:44,113 INFO L134 CoverageAnalysis]: Checked inductivity of 4914 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 4883 trivial. 0 not checked. [2021-11-20 05:37:44,113 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:37:44,113 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775190368] [2021-11-20 05:37:44,114 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 05:37:44,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [701779447] [2021-11-20 05:37:44,114 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [701779447] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-20 05:37:44,114 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 05:37:44,115 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 14 [2021-11-20 05:37:44,116 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257264418] [2021-11-20 05:37:44,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:37:44,117 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-20 05:37:44,118 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:37:44,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-20 05:37:44,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2021-11-20 05:37:44,119 INFO L87 Difference]: Start difference. First operand 8835 states and 12460 transitions. Second operand has 8 states, 8 states have (on average 50.125) internal successors, (401), 7 states have internal predecessors, (401), 4 states have call successors, (117), 3 states have call predecessors, (117), 4 states have return successors, (115), 6 states have call predecessors, (115), 4 states have call successors, (115) [2021-11-20 05:37:51,977 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-20 05:38:01,501 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-20 05:38:26,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:38:26,822 INFO L93 Difference]: Finished difference Result 29845 states and 44526 transitions. [2021-11-20 05:38:26,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-20 05:38:26,823 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 50.125) internal successors, (401), 7 states have internal predecessors, (401), 4 states have call successors, (117), 3 states have call predecessors, (117), 4 states have return successors, (115), 6 states have call predecessors, (115), 4 states have call successors, (115) Word has length 1081 [2021-11-20 05:38:26,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:38:27,120 INFO L225 Difference]: With dead ends: 29845 [2021-11-20 05:38:27,121 INFO L226 Difference]: Without dead ends: 21042 [2021-11-20 05:38:27,166 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2168 GetRequests, 2148 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=104, Invalid=358, Unknown=0, NotChecked=0, Total=462 [2021-11-20 05:38:27,168 INFO L933 BasicCegarLoop]: 8629 mSDtfsCounter, 16326 mSDsluCounter, 16185 mSDsCounter, 0 mSdLazyCounter, 22175 mSolverCounterSat, 4851 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17472 SdHoareTripleChecker+Valid, 24814 SdHoareTripleChecker+Invalid, 27028 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 4851 IncrementalHoareTripleChecker+Valid, 22175 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 40.7s IncrementalHoareTripleChecker+Time [2021-11-20 05:38:27,168 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17472 Valid, 24814 Invalid, 27028 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [4851 Valid, 22175 Invalid, 2 Unknown, 0 Unchecked, 40.7s Time] [2021-11-20 05:38:27,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21042 states. [2021-11-20 05:38:28,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21042 to 20642. [2021-11-20 05:38:28,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20642 states, 14158 states have (on average 1.2880350331967791) internal successors, (18236), 14633 states have internal predecessors, (18236), 5182 states have call successors, (5182), 1129 states have call predecessors, (5182), 1301 states have return successors, (7592), 5076 states have call predecessors, (7592), 5180 states have call successors, (7592) [2021-11-20 05:38:28,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20642 states to 20642 states and 31010 transitions. [2021-11-20 05:38:28,792 INFO L78 Accepts]: Start accepts. Automaton has 20642 states and 31010 transitions. Word has length 1081 [2021-11-20 05:38:28,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:38:28,795 INFO L470 AbstractCegarLoop]: Abstraction has 20642 states and 31010 transitions. [2021-11-20 05:38:28,795 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 50.125) internal successors, (401), 7 states have internal predecessors, (401), 4 states have call successors, (117), 3 states have call predecessors, (117), 4 states have return successors, (115), 6 states have call predecessors, (115), 4 states have call successors, (115) [2021-11-20 05:38:28,795 INFO L276 IsEmpty]: Start isEmpty. Operand 20642 states and 31010 transitions. [2021-11-20 05:38:29,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1095 [2021-11-20 05:38:29,003 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:38:29,004 INFO L514 BasicCegarLoop]: trace histogram [36, 36, 36, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 14, 14, 8, 8, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:38:29,095 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_950c983c-4034-4359-b137-ca2cd3eda113/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-20 05:38:29,229 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_950c983c-4034-4359-b137-ca2cd3eda113/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:38:29,230 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] === [2021-11-20 05:38:29,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:38:29,231 INFO L85 PathProgramCache]: Analyzing trace with hash -1042199844, now seen corresponding path program 1 times [2021-11-20 05:38:29,231 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:38:29,231 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188959871] [2021-11-20 05:38:29,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:38:29,231 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:38:29,662 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 05:38:29,663 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [805476315] [2021-11-20 05:38:29,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:38:29,663 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:38:29,664 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_950c983c-4034-4359-b137-ca2cd3eda113/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:38:29,665 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_950c983c-4034-4359-b137-ca2cd3eda113/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 05:38:29,686 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_950c983c-4034-4359-b137-ca2cd3eda113/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-20 05:38:34,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:38:34,343 INFO L263 TraceCheckSpWp]: Trace formula consists of 21477 conjuncts, 38 conjunts are in the unsatisfiable core [2021-11-20 05:38:34,368 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:38:36,727 INFO L134 CoverageAnalysis]: Checked inductivity of 4914 backedges. 323 proven. 0 refuted. 0 times theorem prover too weak. 4591 trivial. 0 not checked. [2021-11-20 05:38:36,727 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 05:38:36,728 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:38:36,728 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188959871] [2021-11-20 05:38:36,728 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 05:38:36,728 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [805476315] [2021-11-20 05:38:36,728 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [805476315] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:38:36,728 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:38:36,729 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-11-20 05:38:36,729 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440630235] [2021-11-20 05:38:36,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:38:36,731 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-20 05:38:36,731 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:38:36,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-20 05:38:36,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2021-11-20 05:38:36,732 INFO L87 Difference]: Start difference. First operand 20642 states and 31010 transitions. Second operand has 15 states, 14 states have (on average 29.571428571428573) internal successors, (414), 14 states have internal predecessors, (414), 4 states have call successors, (118), 2 states have call predecessors, (118), 4 states have return successors, (116), 4 states have call predecessors, (116), 4 states have call successors, (116) [2021-11-20 05:38:38,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:38:38,676 INFO L93 Difference]: Finished difference Result 41292 states and 62032 transitions. [2021-11-20 05:38:38,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-11-20 05:38:38,678 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 29.571428571428573) internal successors, (414), 14 states have internal predecessors, (414), 4 states have call successors, (118), 2 states have call predecessors, (118), 4 states have return successors, (116), 4 states have call predecessors, (116), 4 states have call successors, (116) Word has length 1094 [2021-11-20 05:38:38,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:38:38,804 INFO L225 Difference]: With dead ends: 41292 [2021-11-20 05:38:38,805 INFO L226 Difference]: Without dead ends: 20633 [2021-11-20 05:38:38,888 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1107 GetRequests, 1080 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=161, Invalid=651, Unknown=0, NotChecked=0, Total=812 [2021-11-20 05:38:38,889 INFO L933 BasicCegarLoop]: 6883 mSDtfsCounter, 51 mSDsluCounter, 89404 mSDsCounter, 0 mSdLazyCounter, 609 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 96287 SdHoareTripleChecker+Invalid, 661 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 609 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-20 05:38:38,890 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [52 Valid, 96287 Invalid, 661 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [52 Valid, 609 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-20 05:38:38,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20633 states. [2021-11-20 05:38:40,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20633 to 20633. [2021-11-20 05:38:40,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20633 states, 14151 states have (on average 1.2879655148046074) internal successors, (18226), 14625 states have internal predecessors, (18226), 5181 states have call successors, (5181), 1128 states have call predecessors, (5181), 1300 states have return successors, (7591), 5075 states have call predecessors, (7591), 5179 states have call successors, (7591) [2021-11-20 05:38:40,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20633 states to 20633 states and 30998 transitions. [2021-11-20 05:38:40,498 INFO L78 Accepts]: Start accepts. Automaton has 20633 states and 30998 transitions. Word has length 1094 [2021-11-20 05:38:40,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:38:40,499 INFO L470 AbstractCegarLoop]: Abstraction has 20633 states and 30998 transitions. [2021-11-20 05:38:40,499 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 29.571428571428573) internal successors, (414), 14 states have internal predecessors, (414), 4 states have call successors, (118), 2 states have call predecessors, (118), 4 states have return successors, (116), 4 states have call predecessors, (116), 4 states have call successors, (116) [2021-11-20 05:38:40,499 INFO L276 IsEmpty]: Start isEmpty. Operand 20633 states and 30998 transitions. [2021-11-20 05:38:40,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1099 [2021-11-20 05:38:40,674 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:38:40,675 INFO L514 BasicCegarLoop]: trace histogram [36, 36, 36, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 14, 14, 8, 8, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:38:40,738 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_950c983c-4034-4359-b137-ca2cd3eda113/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2021-11-20 05:38:40,876 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_950c983c-4034-4359-b137-ca2cd3eda113/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:38:40,876 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] === [2021-11-20 05:38:40,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:38:40,877 INFO L85 PathProgramCache]: Analyzing trace with hash -1760884857, now seen corresponding path program 1 times [2021-11-20 05:38:40,877 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:38:40,877 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018582344] [2021-11-20 05:38:40,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:38:40,878 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:38:41,526 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 05:38:41,526 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [169844360] [2021-11-20 05:38:41,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:38:41,527 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:38:41,527 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_950c983c-4034-4359-b137-ca2cd3eda113/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:38:41,528 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_950c983c-4034-4359-b137-ca2cd3eda113/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 05:38:41,546 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_950c983c-4034-4359-b137-ca2cd3eda113/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-20 05:38:45,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:38:46,052 INFO L263 TraceCheckSpWp]: Trace formula consists of 21519 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-20 05:38:46,073 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:38:47,998 INFO L134 CoverageAnalysis]: Checked inductivity of 4914 backedges. 1484 proven. 0 refuted. 0 times theorem prover too weak. 3430 trivial. 0 not checked. [2021-11-20 05:38:47,998 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 05:38:47,998 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:38:47,999 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018582344] [2021-11-20 05:38:47,999 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 05:38:47,999 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [169844360] [2021-11-20 05:38:47,999 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [169844360] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:38:47,999 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:38:48,000 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-20 05:38:48,000 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446648027] [2021-11-20 05:38:48,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:38:48,002 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-20 05:38:48,002 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:38:48,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-20 05:38:48,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-11-20 05:38:48,003 INFO L87 Difference]: Start difference. First operand 20633 states and 30998 transitions. Second operand has 10 states, 10 states have (on average 42.7) internal successors, (427), 7 states have internal predecessors, (427), 2 states have call successors, (122), 2 states have call predecessors, (122), 5 states have return successors, (120), 5 states have call predecessors, (120), 2 states have call successors, (120) [2021-11-20 05:38:49,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:38:49,003 INFO L93 Difference]: Finished difference Result 41287 states and 65509 transitions. [2021-11-20 05:38:49,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-20 05:38:49,004 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 42.7) internal successors, (427), 7 states have internal predecessors, (427), 2 states have call successors, (122), 2 states have call predecessors, (122), 5 states have return successors, (120), 5 states have call predecessors, (120), 2 states have call successors, (120) Word has length 1098 [2021-11-20 05:38:49,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:38:49,147 INFO L225 Difference]: With dead ends: 41287 [2021-11-20 05:38:49,147 INFO L226 Difference]: Without dead ends: 20681 [2021-11-20 05:38:49,465 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1098 GetRequests, 1089 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-11-20 05:38:49,466 INFO L933 BasicCegarLoop]: 6933 mSDtfsCounter, 1 mSDsluCounter, 55425 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 62358 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 05:38:49,466 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 62358 Invalid, 81 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-20 05:38:49,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20681 states. [2021-11-20 05:38:50,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20681 to 20681. [2021-11-20 05:38:50,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20681 states, 14191 states have (on average 1.2871538298921852) internal successors, (18266), 14665 states have internal predecessors, (18266), 5181 states have call successors, (5181), 1128 states have call predecessors, (5181), 1308 states have return successors, (8099), 5083 states have call predecessors, (8099), 5179 states have call successors, (8099) [2021-11-20 05:38:51,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20681 states to 20681 states and 31546 transitions. [2021-11-20 05:38:51,029 INFO L78 Accepts]: Start accepts. Automaton has 20681 states and 31546 transitions. Word has length 1098 [2021-11-20 05:38:51,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:38:51,033 INFO L470 AbstractCegarLoop]: Abstraction has 20681 states and 31546 transitions. [2021-11-20 05:38:51,033 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 42.7) internal successors, (427), 7 states have internal predecessors, (427), 2 states have call successors, (122), 2 states have call predecessors, (122), 5 states have return successors, (120), 5 states have call predecessors, (120), 2 states have call successors, (120) [2021-11-20 05:38:51,034 INFO L276 IsEmpty]: Start isEmpty. Operand 20681 states and 31546 transitions. [2021-11-20 05:38:51,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1088 [2021-11-20 05:38:51,245 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:38:51,246 INFO L514 BasicCegarLoop]: trace histogram [36, 36, 36, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 14, 14, 8, 8, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:38:51,325 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_950c983c-4034-4359-b137-ca2cd3eda113/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-20 05:38:51,470 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_950c983c-4034-4359-b137-ca2cd3eda113/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:38:51,471 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] === [2021-11-20 05:38:51,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:38:51,472 INFO L85 PathProgramCache]: Analyzing trace with hash -523067003, now seen corresponding path program 1 times [2021-11-20 05:38:51,472 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:38:51,472 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315134294] [2021-11-20 05:38:51,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:38:51,472 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:38:51,944 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 05:38:51,945 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2037574145] [2021-11-20 05:38:51,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:38:51,945 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:38:51,945 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_950c983c-4034-4359-b137-ca2cd3eda113/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:38:51,946 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_950c983c-4034-4359-b137-ca2cd3eda113/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 05:38:51,958 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_950c983c-4034-4359-b137-ca2cd3eda113/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-20 05:38:56,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:38:56,535 INFO L263 TraceCheckSpWp]: Trace formula consists of 21425 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-20 05:38:56,555 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:38:58,508 INFO L134 CoverageAnalysis]: Checked inductivity of 4899 backedges. 1484 proven. 0 refuted. 0 times theorem prover too weak. 3415 trivial. 0 not checked. [2021-11-20 05:38:58,509 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 05:38:58,509 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:38:58,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [315134294] [2021-11-20 05:38:58,509 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 05:38:58,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2037574145] [2021-11-20 05:38:58,509 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2037574145] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:38:58,510 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:38:58,510 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-20 05:38:58,513 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356913001] [2021-11-20 05:38:58,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:38:58,515 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-20 05:38:58,515 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:38:58,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-20 05:38:58,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-11-20 05:38:58,516 INFO L87 Difference]: Start difference. First operand 20681 states and 31546 transitions. Second operand has 10 states, 10 states have (on average 42.0) internal successors, (420), 7 states have internal predecessors, (420), 2 states have call successors, (121), 2 states have call predecessors, (121), 5 states have return successors, (119), 5 states have call predecessors, (119), 2 states have call successors, (119) [2021-11-20 05:38:59,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:38:59,619 INFO L93 Difference]: Finished difference Result 41375 states and 67097 transitions. [2021-11-20 05:38:59,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-20 05:38:59,620 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 42.0) internal successors, (420), 7 states have internal predecessors, (420), 2 states have call successors, (121), 2 states have call predecessors, (121), 5 states have return successors, (119), 5 states have call predecessors, (119), 2 states have call successors, (119) Word has length 1087 [2021-11-20 05:38:59,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:38:59,748 INFO L225 Difference]: With dead ends: 41375 [2021-11-20 05:38:59,748 INFO L226 Difference]: Without dead ends: 20721 [2021-11-20 05:38:59,873 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1087 GetRequests, 1078 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-11-20 05:38:59,874 INFO L933 BasicCegarLoop]: 6923 mSDtfsCounter, 2 mSDsluCounter, 55350 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 62273 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 05:38:59,874 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 62273 Invalid, 78 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-20 05:38:59,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20721 states. [2021-11-20 05:39:01,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20721 to 20681. [2021-11-20 05:39:01,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20681 states, 14191 states have (on average 1.2871538298921852) internal successors, (18266), 14665 states have internal predecessors, (18266), 5181 states have call successors, (5181), 1128 states have call predecessors, (5181), 1308 states have return successors, (8099), 5083 states have call predecessors, (8099), 5179 states have call successors, (8099) [2021-11-20 05:39:01,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20681 states to 20681 states and 31546 transitions. [2021-11-20 05:39:01,378 INFO L78 Accepts]: Start accepts. Automaton has 20681 states and 31546 transitions. Word has length 1087 [2021-11-20 05:39:01,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:39:01,380 INFO L470 AbstractCegarLoop]: Abstraction has 20681 states and 31546 transitions. [2021-11-20 05:39:01,380 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 42.0) internal successors, (420), 7 states have internal predecessors, (420), 2 states have call successors, (121), 2 states have call predecessors, (121), 5 states have return successors, (119), 5 states have call predecessors, (119), 2 states have call successors, (119) [2021-11-20 05:39:01,381 INFO L276 IsEmpty]: Start isEmpty. Operand 20681 states and 31546 transitions. [2021-11-20 05:39:01,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1099 [2021-11-20 05:39:01,866 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:39:01,867 INFO L514 BasicCegarLoop]: trace histogram [36, 36, 36, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 14, 14, 8, 8, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:39:01,942 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_950c983c-4034-4359-b137-ca2cd3eda113/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-11-20 05:39:02,082 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_950c983c-4034-4359-b137-ca2cd3eda113/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-11-20 05:39:02,082 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 05:39:02,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:39:02,083 INFO L85 PathProgramCache]: Analyzing trace with hash 1716844487, now seen corresponding path program 1 times [2021-11-20 05:39:02,083 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:39:02,083 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745228758] [2021-11-20 05:39:02,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:39:02,083 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:39:02,446 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 05:39:02,447 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [428651882] [2021-11-20 05:39:02,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:39:02,447 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:39:02,448 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_950c983c-4034-4359-b137-ca2cd3eda113/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:39:02,448 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_950c983c-4034-4359-b137-ca2cd3eda113/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 05:39:02,466 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_950c983c-4034-4359-b137-ca2cd3eda113/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-20 05:39:08,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:39:08,777 INFO L263 TraceCheckSpWp]: Trace formula consists of 21513 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-20 05:39:08,797 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:39:10,740 INFO L134 CoverageAnalysis]: Checked inductivity of 4914 backedges. 1526 proven. 0 refuted. 0 times theorem prover too weak. 3388 trivial. 0 not checked. [2021-11-20 05:39:10,740 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 05:39:10,741 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:39:10,741 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745228758] [2021-11-20 05:39:10,741 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 05:39:10,741 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [428651882] [2021-11-20 05:39:10,741 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [428651882] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:39:10,741 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:39:10,741 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 05:39:10,742 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979805617] [2021-11-20 05:39:10,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:39:10,743 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 05:39:10,743 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:39:10,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 05:39:10,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 05:39:10,745 INFO L87 Difference]: Start difference. First operand 20681 states and 31546 transitions. Second operand has 3 states, 3 states have (on average 143.0) internal successors, (429), 3 states have internal predecessors, (429), 2 states have call successors, (122), 2 states have call predecessors, (122), 2 states have return successors, (120), 2 states have call predecessors, (120), 2 states have call successors, (120) [2021-11-20 05:39:11,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:39:11,845 INFO L93 Difference]: Finished difference Result 41359 states and 66589 transitions. [2021-11-20 05:39:11,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 05:39:11,846 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 143.0) internal successors, (429), 3 states have internal predecessors, (429), 2 states have call successors, (122), 2 states have call predecessors, (122), 2 states have return successors, (120), 2 states have call predecessors, (120), 2 states have call successors, (120) Word has length 1098 [2021-11-20 05:39:11,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:39:11,936 INFO L225 Difference]: With dead ends: 41359 [2021-11-20 05:39:11,937 INFO L226 Difference]: Without dead ends: 20705 [2021-11-20 05:39:12,021 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1097 GetRequests, 1096 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 05:39:12,021 INFO L933 BasicCegarLoop]: 6911 mSDtfsCounter, 10 mSDsluCounter, 6900 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 13811 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 05:39:12,021 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 13811 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 05:39:12,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20705 states. [2021-11-20 05:39:12,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20705 to 20685. [2021-11-20 05:39:13,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20685 states, 14195 states have (on average 1.2870729129975342) internal successors, (18270), 14669 states have internal predecessors, (18270), 5181 states have call successors, (5181), 1128 states have call predecessors, (5181), 1308 states have return successors, (8099), 5083 states have call predecessors, (8099), 5179 states have call successors, (8099) [2021-11-20 05:39:13,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20685 states to 20685 states and 31550 transitions. [2021-11-20 05:39:13,106 INFO L78 Accepts]: Start accepts. Automaton has 20685 states and 31550 transitions. Word has length 1098 [2021-11-20 05:39:13,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:39:13,107 INFO L470 AbstractCegarLoop]: Abstraction has 20685 states and 31550 transitions. [2021-11-20 05:39:13,107 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 143.0) internal successors, (429), 3 states have internal predecessors, (429), 2 states have call successors, (122), 2 states have call predecessors, (122), 2 states have return successors, (120), 2 states have call predecessors, (120), 2 states have call successors, (120) [2021-11-20 05:39:13,108 INFO L276 IsEmpty]: Start isEmpty. Operand 20685 states and 31550 transitions. [2021-11-20 05:39:13,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1159 [2021-11-20 05:39:13,214 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:39:13,215 INFO L514 BasicCegarLoop]: trace histogram [36, 36, 36, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 8, 8, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:39:13,278 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_950c983c-4034-4359-b137-ca2cd3eda113/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-11-20 05:39:13,415 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_950c983c-4034-4359-b137-ca2cd3eda113/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-11-20 05:39:13,416 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 05:39:13,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:39:13,416 INFO L85 PathProgramCache]: Analyzing trace with hash -2006912502, now seen corresponding path program 1 times [2021-11-20 05:39:13,416 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:39:13,416 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738514946] [2021-11-20 05:39:13,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:39:13,417 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:39:13,784 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 05:39:13,785 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1468349101] [2021-11-20 05:39:13,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:39:13,785 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:39:13,785 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_950c983c-4034-4359-b137-ca2cd3eda113/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:39:13,786 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_950c983c-4034-4359-b137-ca2cd3eda113/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 05:39:14,022 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_950c983c-4034-4359-b137-ca2cd3eda113/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-11-20 05:39:17,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:39:18,041 INFO L263 TraceCheckSpWp]: Trace formula consists of 21712 conjuncts, 23 conjunts are in the unsatisfiable core [2021-11-20 05:39:18,065 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:39:20,162 INFO L134 CoverageAnalysis]: Checked inductivity of 5087 backedges. 1619 proven. 0 refuted. 0 times theorem prover too weak. 3468 trivial. 0 not checked. [2021-11-20 05:39:20,162 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 05:39:20,163 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:39:20,163 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738514946] [2021-11-20 05:39:20,163 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 05:39:20,163 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1468349101] [2021-11-20 05:39:20,163 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1468349101] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:39:20,164 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:39:20,164 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-20 05:39:20,164 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897857501] [2021-11-20 05:39:20,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:39:20,166 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-20 05:39:20,167 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:39:20,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-20 05:39:20,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-20 05:39:20,168 INFO L87 Difference]: Start difference. First operand 20685 states and 31550 transitions. Second operand has 8 states, 7 states have (on average 63.0) internal successors, (441), 6 states have internal predecessors, (441), 3 states have call successors, (133), 2 states have call predecessors, (133), 3 states have return successors, (131), 4 states have call predecessors, (131), 3 states have call successors, (131) [2021-11-20 05:39:22,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:39:22,165 INFO L93 Difference]: Finished difference Result 41383 states and 66637 transitions. [2021-11-20 05:39:22,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-20 05:39:22,166 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 63.0) internal successors, (441), 6 states have internal predecessors, (441), 3 states have call successors, (133), 2 states have call predecessors, (133), 3 states have return successors, (131), 4 states have call predecessors, (131), 3 states have call successors, (131) Word has length 1158 [2021-11-20 05:39:22,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:39:22,286 INFO L225 Difference]: With dead ends: 41383 [2021-11-20 05:39:22,286 INFO L226 Difference]: Without dead ends: 20725 [2021-11-20 05:39:22,529 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1161 GetRequests, 1151 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2021-11-20 05:39:22,529 INFO L933 BasicCegarLoop]: 6778 mSDtfsCounter, 16 mSDsluCounter, 40509 mSDsCounter, 0 mSdLazyCounter, 1119 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 47287 SdHoareTripleChecker+Invalid, 1129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-11-20 05:39:22,530 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 47287 Invalid, 1129 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10 Valid, 1119 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-11-20 05:39:22,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20725 states. [2021-11-20 05:39:23,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20725 to 20697. [2021-11-20 05:39:23,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20697 states, 14203 states have (on average 1.2869112159402942) internal successors, (18278), 14673 states have internal predecessors, (18278), 5185 states have call successors, (5185), 1128 states have call predecessors, (5185), 1308 states have return successors, (8103), 5087 states have call predecessors, (8103), 5183 states have call successors, (8103) [2021-11-20 05:39:23,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20697 states to 20697 states and 31566 transitions. [2021-11-20 05:39:23,473 INFO L78 Accepts]: Start accepts. Automaton has 20697 states and 31566 transitions. Word has length 1158 [2021-11-20 05:39:23,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:39:23,474 INFO L470 AbstractCegarLoop]: Abstraction has 20697 states and 31566 transitions. [2021-11-20 05:39:23,474 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 63.0) internal successors, (441), 6 states have internal predecessors, (441), 3 states have call successors, (133), 2 states have call predecessors, (133), 3 states have return successors, (131), 4 states have call predecessors, (131), 3 states have call successors, (131) [2021-11-20 05:39:23,474 INFO L276 IsEmpty]: Start isEmpty. Operand 20697 states and 31566 transitions. [2021-11-20 05:39:23,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1104 [2021-11-20 05:39:23,589 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:39:23,590 INFO L514 BasicCegarLoop]: trace histogram [36, 36, 36, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 14, 14, 8, 8, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:39:23,648 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_950c983c-4034-4359-b137-ca2cd3eda113/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-11-20 05:39:23,791 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_950c983c-4034-4359-b137-ca2cd3eda113/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-11-20 05:39:23,791 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 05:39:23,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:39:23,792 INFO L85 PathProgramCache]: Analyzing trace with hash 1394586361, now seen corresponding path program 1 times [2021-11-20 05:39:23,792 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:39:23,792 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342066192] [2021-11-20 05:39:23,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:39:23,793 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:39:24,349 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 05:39:24,349 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [941833310] [2021-11-20 05:39:24,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:39:24,349 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:39:24,350 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_950c983c-4034-4359-b137-ca2cd3eda113/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:39:24,350 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_950c983c-4034-4359-b137-ca2cd3eda113/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 05:39:24,372 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_950c983c-4034-4359-b137-ca2cd3eda113/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-11-20 05:39:31,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:39:31,796 INFO L263 TraceCheckSpWp]: Trace formula consists of 21545 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-20 05:39:31,813 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:39:33,728 INFO L134 CoverageAnalysis]: Checked inductivity of 4899 backedges. 1594 proven. 2 refuted. 0 times theorem prover too weak. 3303 trivial. 0 not checked. [2021-11-20 05:39:33,728 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 05:39:38,064 INFO L134 CoverageAnalysis]: Checked inductivity of 4899 backedges. 9 proven. 36 refuted. 0 times theorem prover too weak. 4854 trivial. 0 not checked. [2021-11-20 05:39:38,065 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:39:38,065 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342066192] [2021-11-20 05:39:38,065 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 05:39:38,065 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [941833310] [2021-11-20 05:39:38,065 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [941833310] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 05:39:38,065 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-20 05:39:38,066 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 18 [2021-11-20 05:39:38,066 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128264386] [2021-11-20 05:39:38,066 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-20 05:39:38,069 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-11-20 05:39:38,069 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:39:38,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-20 05:39:38,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2021-11-20 05:39:38,070 INFO L87 Difference]: Start difference. First operand 20697 states and 31566 transitions. Second operand has 18 states, 16 states have (on average 46.1875) internal successors, (739), 16 states have internal predecessors, (739), 9 states have call successors, (206), 2 states have call predecessors, (206), 6 states have return successors, (204), 8 states have call predecessors, (204), 9 states have call successors, (204) [2021-11-20 05:39:41,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:39:41,664 INFO L93 Difference]: Finished difference Result 39173 states and 59033 transitions. [2021-11-20 05:39:41,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-20 05:39:41,665 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 16 states have (on average 46.1875) internal successors, (739), 16 states have internal predecessors, (739), 9 states have call successors, (206), 2 states have call predecessors, (206), 6 states have return successors, (204), 8 states have call predecessors, (204), 9 states have call successors, (204) Word has length 1103 [2021-11-20 05:39:41,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:39:41,756 INFO L225 Difference]: With dead ends: 39173 [2021-11-20 05:39:41,756 INFO L226 Difference]: Without dead ends: 20821 [2021-11-20 05:39:41,822 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2211 GetRequests, 2189 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=86, Invalid=420, Unknown=0, NotChecked=0, Total=506 [2021-11-20 05:39:41,823 INFO L933 BasicCegarLoop]: 6777 mSDtfsCounter, 61 mSDsluCounter, 80957 mSDsCounter, 0 mSdLazyCounter, 2314 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 87734 SdHoareTripleChecker+Invalid, 2332 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 2314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2021-11-20 05:39:41,823 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [71 Valid, 87734 Invalid, 2332 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [18 Valid, 2314 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2021-11-20 05:39:41,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20821 states. [2021-11-20 05:39:42,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20821 to 20749. [2021-11-20 05:39:42,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20749 states, 14235 states have (on average 1.2868282402528979) internal successors, (18318), 14713 states have internal predecessors, (18318), 5197 states have call successors, (5197), 1128 states have call predecessors, (5197), 1316 states have return successors, (8135), 5099 states have call predecessors, (8135), 5195 states have call successors, (8135) [2021-11-20 05:39:42,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20749 states to 20749 states and 31650 transitions. [2021-11-20 05:39:42,912 INFO L78 Accepts]: Start accepts. Automaton has 20749 states and 31650 transitions. Word has length 1103 [2021-11-20 05:39:42,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:39:42,913 INFO L470 AbstractCegarLoop]: Abstraction has 20749 states and 31650 transitions. [2021-11-20 05:39:42,913 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 16 states have (on average 46.1875) internal successors, (739), 16 states have internal predecessors, (739), 9 states have call successors, (206), 2 states have call predecessors, (206), 6 states have return successors, (204), 8 states have call predecessors, (204), 9 states have call successors, (204) [2021-11-20 05:39:42,913 INFO L276 IsEmpty]: Start isEmpty. Operand 20749 states and 31650 transitions. [2021-11-20 05:39:43,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1104 [2021-11-20 05:39:43,022 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:39:43,023 INFO L514 BasicCegarLoop]: trace histogram [36, 36, 36, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 14, 14, 8, 8, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:39:43,091 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_950c983c-4034-4359-b137-ca2cd3eda113/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2021-11-20 05:39:43,224 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_950c983c-4034-4359-b137-ca2cd3eda113/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:39:43,225 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 05:39:43,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:39:43,225 INFO L85 PathProgramCache]: Analyzing trace with hash 1636769911, now seen corresponding path program 1 times [2021-11-20 05:39:43,225 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:39:43,226 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380881209] [2021-11-20 05:39:43,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:39:43,226 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:39:43,528 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 05:39:43,529 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1699875473] [2021-11-20 05:39:43,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:39:43,529 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:39:43,530 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_950c983c-4034-4359-b137-ca2cd3eda113/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:39:43,531 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_950c983c-4034-4359-b137-ca2cd3eda113/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 05:39:43,532 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_950c983c-4034-4359-b137-ca2cd3eda113/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process