./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 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_700f116e-6fd6-4a0e-994b-fc6101dc3fce/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_700f116e-6fd6-4a0e-994b-fc6101dc3fce/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_700f116e-6fd6-4a0e-994b-fc6101dc3fce/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_700f116e-6fd6-4a0e-994b-fc6101dc3fce/bin/uautomizer-DrprNOufMa/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_700f116e-6fd6-4a0e-994b-fc6101dc3fce/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_700f116e-6fd6-4a0e-994b-fc6101dc3fce/bin/uautomizer-DrprNOufMa --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 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 19:04:36,761 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 19:04:36,763 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 19:04:36,792 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 19:04:36,792 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 19:04:36,793 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 19:04:36,794 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 19:04:36,796 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 19:04:36,798 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 19:04:36,798 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 19:04:36,799 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 19:04:36,800 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 19:04:36,801 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 19:04:36,802 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 19:04:36,803 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 19:04:36,804 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 19:04:36,805 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 19:04:36,805 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 19:04:36,807 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 19:04:36,809 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 19:04:36,811 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 19:04:36,812 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 19:04:36,813 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 19:04:36,814 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 19:04:36,816 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 19:04:36,817 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 19:04:36,817 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 19:04:36,818 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 19:04:36,818 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 19:04:36,819 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 19:04:36,819 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 19:04:36,820 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 19:04:36,821 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 19:04:36,821 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 19:04:36,822 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 19:04:36,822 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 19:04:36,823 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 19:04:36,823 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 19:04:36,823 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 19:04:36,824 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 19:04:36,824 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 19:04:36,825 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_700f116e-6fd6-4a0e-994b-fc6101dc3fce/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-06 19:04:36,848 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 19:04:36,848 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 19:04:36,848 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 19:04:36,849 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 19:04:36,849 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-06 19:04:36,849 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-06 19:04:36,850 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 19:04:36,850 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 19:04:36,850 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 19:04:36,851 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 19:04:36,851 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 19:04:36,851 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 19:04:36,851 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-06 19:04:36,851 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-06 19:04:36,851 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-06 19:04:36,852 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 19:04:36,852 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 19:04:36,852 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-06 19:04:36,852 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 19:04:36,852 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 19:04:36,853 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-06 19:04:36,853 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 19:04:36,853 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 19:04:36,853 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-06 19:04:36,853 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-06 19:04:36,854 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 19:04:36,854 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-06 19:04:36,854 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-06 19:04:36,854 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-06 19:04:36,854 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-06 19:04:36,854 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 19:04:36,855 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_700f116e-6fd6-4a0e-994b-fc6101dc3fce/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_700f116e-6fd6-4a0e-994b-fc6101dc3fce/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 48ae22c8c2494b96697ffe1db529f00fa4b52cdca22138b3bf77c84445f7f2f5 [2021-12-06 19:04:37,050 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 19:04:37,065 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 19:04:37,066 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 19:04:37,067 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 19:04:37,068 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 19:04:37,069 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_700f116e-6fd6-4a0e-994b-fc6101dc3fce/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-drivers-clk1_drivers-net-ethernet-stmicro-stmmac-stmmac.cil.i [2021-12-06 19:04:37,112 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_700f116e-6fd6-4a0e-994b-fc6101dc3fce/bin/uautomizer-DrprNOufMa/data/900313669/99ea96d1d9a649df82b2f4636a40cc8b/FLAG3ae0eee2a [2021-12-06 19:04:37,890 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 19:04:37,890 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_700f116e-6fd6-4a0e-994b-fc6101dc3fce/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-drivers-clk1_drivers-net-ethernet-stmicro-stmmac-stmmac.cil.i [2021-12-06 19:04:37,935 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_700f116e-6fd6-4a0e-994b-fc6101dc3fce/bin/uautomizer-DrprNOufMa/data/900313669/99ea96d1d9a649df82b2f4636a40cc8b/FLAG3ae0eee2a [2021-12-06 19:04:38,139 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_700f116e-6fd6-4a0e-994b-fc6101dc3fce/bin/uautomizer-DrprNOufMa/data/900313669/99ea96d1d9a649df82b2f4636a40cc8b [2021-12-06 19:04:38,141 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 19:04:38,142 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 19:04:38,143 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 19:04:38,143 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 19:04:38,146 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 19:04:38,146 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 07:04:38" (1/1) ... [2021-12-06 19:04:38,147 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@203280cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:04:38, skipping insertion in model container [2021-12-06 19:04:38,147 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 07:04:38" (1/1) ... [2021-12-06 19:04:38,153 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 19:04:38,375 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 19:04:44,921 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_700f116e-6fd6-4a0e-994b-fc6101dc3fce/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-drivers-clk1_drivers-net-ethernet-stmicro-stmmac-stmmac.cil.i[788938,788951] [2021-12-06 19:04:44,956 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 19:04:45,054 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 19:04:45,471 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_700f116e-6fd6-4a0e-994b-fc6101dc3fce/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-drivers-clk1_drivers-net-ethernet-stmicro-stmmac-stmmac.cil.i[788938,788951] [2021-12-06 19:04:45,485 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 19:04:45,886 INFO L208 MainTranslator]: Completed translation [2021-12-06 19:04:45,886 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:04:45 WrapperNode [2021-12-06 19:04:45,886 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 19:04:45,888 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 19:04:45,888 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 19:04:45,888 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 19:04:45,895 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:04:45" (1/1) ... [2021-12-06 19:04:46,045 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:04:45" (1/1) ... [2021-12-06 19:04:46,426 INFO L137 Inliner]: procedures = 926, calls = 12263, calls flagged for inlining = 543, calls inlined = 454, statements flattened = 17931 [2021-12-06 19:04:46,427 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 19:04:46,428 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 19:04:46,428 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 19:04:46,428 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 19:04:46,438 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:04:45" (1/1) ... [2021-12-06 19:04:46,438 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:04:45" (1/1) ... [2021-12-06 19:04:46,533 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:04:45" (1/1) ... [2021-12-06 19:04:46,533 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:04:45" (1/1) ... [2021-12-06 19:04:46,947 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:04:45" (1/1) ... [2021-12-06 19:04:46,981 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:04:45" (1/1) ... [2021-12-06 19:04:47,055 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:04:45" (1/1) ... [2021-12-06 19:04:47,126 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 19:04:47,126 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 19:04:47,127 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 19:04:47,127 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 19:04:47,127 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:04:45" (1/1) ... [2021-12-06 19:04:47,133 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 19:04:47,143 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_700f116e-6fd6-4a0e-994b-fc6101dc3fce/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:04:47,156 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_700f116e-6fd6-4a0e-994b-fc6101dc3fce/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-06 19:04:47,158 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_700f116e-6fd6-4a0e-994b-fc6101dc3fce/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-06 19:04:47,194 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_get_coalesce [2021-12-06 19:04:47,195 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_get_coalesce [2021-12-06 19:04:47,195 INFO L130 BoogieDeclarations]: Found specification of procedure device_set_wakeup_enable [2021-12-06 19:04:47,195 INFO L138 BoogieDeclarations]: Found implementation of procedure device_set_wakeup_enable [2021-12-06 19:04:47,195 INFO L130 BoogieDeclarations]: Found specification of procedure ndesc_get_tx_owner [2021-12-06 19:04:47,195 INFO L138 BoogieDeclarations]: Found implementation of procedure ndesc_get_tx_owner [2021-12-06 19:04:47,195 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-12-06 19:04:47,196 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-12-06 19:04:47,196 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac1000_rx_watchdog [2021-12-06 19:04:47,196 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac1000_rx_watchdog [2021-12-06 19:04:47,196 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac1000_set_filter [2021-12-06 19:04:47,196 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac1000_set_filter [2021-12-06 19:04:47,196 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-12-06 19:04:47,196 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-12-06 19:04:47,196 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-12-06 19:04:47,197 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-12-06 19:04:47,197 INFO L130 BoogieDeclarations]: Found specification of procedure crc32_le [2021-12-06 19:04:47,197 INFO L138 BoogieDeclarations]: Found implementation of procedure crc32_le [2021-12-06 19:04:47,197 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2021-12-06 19:04:47,197 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2021-12-06 19:04:47,197 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~TO~VOID [2021-12-06 19:04:47,197 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~TO~VOID [2021-12-06 19:04:47,197 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_clean_desc3___0 [2021-12-06 19:04:47,198 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_clean_desc3___0 [2021-12-06 19:04:47,198 INFO L130 BoogieDeclarations]: Found specification of procedure ehn_desc_tx_set_on_chain [2021-12-06 19:04:47,198 INFO L138 BoogieDeclarations]: Found implementation of procedure ehn_desc_tx_set_on_chain [2021-12-06 19:04:47,198 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-12-06 19:04:47,198 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-12-06 19:04:47,198 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-12-06 19:04:47,198 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-12-06 19:04:47,198 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_pltfr_probe [2021-12-06 19:04:47,199 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_pltfr_probe [2021-12-06 19:04:47,199 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_poll_controller [2021-12-06 19:04:47,199 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_poll_controller [2021-12-06 19:04:47,199 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-06 19:04:47,199 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-06 19:04:47,199 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_pltfr_suspend [2021-12-06 19:04:47,199 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_pltfr_suspend [2021-12-06 19:04:47,199 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-12-06 19:04:47,200 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-12-06 19:04:47,200 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dispatch_irq_register_19_2 [2021-12-06 19:04:47,200 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dispatch_irq_register_19_2 [2021-12-06 19:04:47,200 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac100_dma_operation_mode [2021-12-06 19:04:47,200 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac100_dma_operation_mode [2021-12-06 19:04:47,200 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac1000_ctrl_ane [2021-12-06 19:04:47,200 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac1000_ctrl_ane [2021-12-06 19:04:47,201 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-12-06 19:04:47,201 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-12-06 19:04:47,201 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~X~~u32~0~TO~int [2021-12-06 19:04:47,201 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~X~~u32~0~TO~int [2021-12-06 19:04:47,201 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_set_16kib_bfsize [2021-12-06 19:04:47,201 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_set_16kib_bfsize [2021-12-06 19:04:47,201 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac1000_set_eee_timer [2021-12-06 19:04:47,201 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac1000_set_eee_timer [2021-12-06 19:04:47,202 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-12-06 19:04:47,202 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-12-06 19:04:47,202 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-06 19:04:47,202 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~X~int~TO~VOID [2021-12-06 19:04:47,202 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~X~int~TO~VOID [2021-12-06 19:04:47,202 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_drivers_clk1__more_at_exit [2021-12-06 19:04:47,202 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_drivers_clk1__more_at_exit [2021-12-06 19:04:47,202 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-12-06 19:04:47,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-12-06 19:04:47,203 INFO L130 BoogieDeclarations]: Found specification of procedure ndesc_release_tx_desc [2021-12-06 19:04:47,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ndesc_release_tx_desc [2021-12-06 19:04:47,203 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac1000_dump_regs [2021-12-06 19:04:47,203 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac1000_dump_regs [2021-12-06 19:04:47,203 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-12-06 19:04:47,203 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-12-06 19:04:47,203 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac100_dump_mac_regs [2021-12-06 19:04:47,204 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac100_dump_mac_regs [2021-12-06 19:04:47,204 INFO L130 BoogieDeclarations]: Found specification of procedure enh_desc_get_tx_ls [2021-12-06 19:04:47,204 INFO L138 BoogieDeclarations]: Found implementation of procedure enh_desc_get_tx_ls [2021-12-06 19:04:47,204 INFO L130 BoogieDeclarations]: Found specification of procedure ndesc_close_tx_desc [2021-12-06 19:04:47,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ndesc_close_tx_desc [2021-12-06 19:04:47,204 INFO L130 BoogieDeclarations]: Found specification of procedure napi_enable [2021-12-06 19:04:47,204 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_enable [2021-12-06 19:04:47,204 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac100_core_init [2021-12-06 19:04:47,205 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac100_core_init [2021-12-06 19:04:47,205 INFO L130 BoogieDeclarations]: Found specification of procedure virt_to_phys [2021-12-06 19:04:47,205 INFO L138 BoogieDeclarations]: Found implementation of procedure virt_to_phys [2021-12-06 19:04:47,205 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-06 19:04:47,205 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_tx_skbufs [2021-12-06 19:04:47,205 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_tx_skbufs [2021-12-06 19:04:47,205 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 19:04:47,205 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-12-06 19:04:47,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-12-06 19:04:47,206 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-12-06 19:04:47,206 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-12-06 19:04:47,206 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac1000_rx_ipc_enable [2021-12-06 19:04:47,206 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac1000_rx_ipc_enable [2021-12-06 19:04:47,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-06 19:04:47,206 INFO L130 BoogieDeclarations]: Found specification of procedure enh_desc_get_rx_status [2021-12-06 19:04:47,206 INFO L138 BoogieDeclarations]: Found implementation of procedure enh_desc_get_rx_status [2021-12-06 19:04:47,207 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headlen [2021-12-06 19:04:47,207 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headlen [2021-12-06 19:04:47,207 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2021-12-06 19:04:47,207 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2021-12-06 19:04:47,207 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac1000_get_adv [2021-12-06 19:04:47,207 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac1000_get_adv [2021-12-06 19:04:47,207 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-12-06 19:04:47,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-12-06 19:04:47,208 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_hw_fix_mac_speed [2021-12-06 19:04:47,208 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_hw_fix_mac_speed [2021-12-06 19:04:47,208 INFO L130 BoogieDeclarations]: Found specification of procedure napi_disable [2021-12-06 19:04:47,208 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_disable [2021-12-06 19:04:47,208 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-06 19:04:47,208 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-06 19:04:47,208 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_config_addend [2021-12-06 19:04:47,208 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_config_addend [2021-12-06 19:04:47,209 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac_enable_dma_transmission [2021-12-06 19:04:47,209 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac_enable_dma_transmission [2021-12-06 19:04:47,209 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-12-06 19:04:47,209 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-12-06 19:04:47,209 INFO L130 BoogieDeclarations]: Found specification of procedure device_can_wakeup [2021-12-06 19:04:47,209 INFO L138 BoogieDeclarations]: Found implementation of procedure device_can_wakeup [2021-12-06 19:04:47,209 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_suspend [2021-12-06 19:04:47,209 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_suspend [2021-12-06 19:04:47,210 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_set_pauseparam [2021-12-06 19:04:47,210 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_set_pauseparam [2021-12-06 19:04:47,210 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_free_rx_buffers [2021-12-06 19:04:47,210 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_free_rx_buffers [2021-12-06 19:04:47,210 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-12-06 19:04:47,210 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-12-06 19:04:47,210 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_init_dma_chain [2021-12-06 19:04:47,210 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_init_dma_chain [2021-12-06 19:04:47,211 INFO L130 BoogieDeclarations]: Found specification of procedure enh_desc_get_rx_frame_len [2021-12-06 19:04:47,211 INFO L138 BoogieDeclarations]: Found implementation of procedure enh_desc_get_rx_frame_len [2021-12-06 19:04:47,211 INFO L130 BoogieDeclarations]: Found specification of procedure enh_desc_init_rx_desc [2021-12-06 19:04:47,211 INFO L138 BoogieDeclarations]: Found implementation of procedure enh_desc_init_rx_desc [2021-12-06 19:04:47,211 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_interrupt [2021-12-06 19:04:47,211 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_interrupt [2021-12-06 19:04:47,211 INFO L130 BoogieDeclarations]: Found specification of procedure ndesc_init_rx_desc [2021-12-06 19:04:47,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ndesc_init_rx_desc [2021-12-06 19:04:47,212 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_set_mac_addr [2021-12-06 19:04:47,212 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_set_mac_addr [2021-12-06 19:04:47,212 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 19:04:47,212 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 19:04:47,212 INFO L130 BoogieDeclarations]: Found specification of procedure ndesc_get_rx_status [2021-12-06 19:04:47,212 INFO L138 BoogieDeclarations]: Found implementation of procedure ndesc_get_rx_status [2021-12-06 19:04:47,212 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-12-06 19:04:47,212 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-12-06 19:04:47,212 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac1000_reset_eee_mode [2021-12-06 19:04:47,213 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac1000_reset_eee_mode [2021-12-06 19:04:47,213 INFO L130 BoogieDeclarations]: Found specification of procedure enh_desc_enable_tx_timestamp [2021-12-06 19:04:47,213 INFO L138 BoogieDeclarations]: Found implementation of procedure enh_desc_enable_tx_timestamp [2021-12-06 19:04:47,213 INFO L130 BoogieDeclarations]: Found specification of procedure mdiobus_free [2021-12-06 19:04:47,213 INFO L138 BoogieDeclarations]: Found implementation of procedure mdiobus_free [2021-12-06 19:04:47,213 INFO L130 BoogieDeclarations]: Found specification of procedure ndesc_set_rx_owner [2021-12-06 19:04:47,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ndesc_set_rx_owner [2021-12-06 19:04:47,213 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-06 19:04:47,213 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-12-06 19:04:47,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-12-06 19:04:47,214 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_display_ring [2021-12-06 19:04:47,214 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_display_ring [2021-12-06 19:04:47,214 INFO L130 BoogieDeclarations]: Found specification of procedure mdiobus_unregister [2021-12-06 19:04:47,214 INFO L138 BoogieDeclarations]: Found implementation of procedure mdiobus_unregister [2021-12-06 19:04:47,214 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-12-06 19:04:47,214 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-12-06 19:04:47,214 INFO L130 BoogieDeclarations]: Found specification of procedure enh_desc_get_rx_timestamp_status [2021-12-06 19:04:47,214 INFO L138 BoogieDeclarations]: Found implementation of procedure enh_desc_get_rx_timestamp_status [2021-12-06 19:04:47,215 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-12-06 19:04:47,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-12-06 19:04:47,215 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac1000_set_eee_pls [2021-12-06 19:04:47,215 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac1000_set_eee_pls [2021-12-06 19:04:47,215 INFO L130 BoogieDeclarations]: Found specification of procedure ndesc_enable_tx_timestamp [2021-12-06 19:04:47,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ndesc_enable_tx_timestamp [2021-12-06 19:04:47,215 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_clk_prepare_enable_29 [2021-12-06 19:04:47,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_clk_prepare_enable_29 [2021-12-06 19:04:47,215 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac100_rx_ipc_enable [2021-12-06 19:04:47,216 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac100_rx_ipc_enable [2021-12-06 19:04:47,216 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2021-12-06 19:04:47,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2021-12-06 19:04:47,216 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~TO~int [2021-12-06 19:04:47,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~TO~int [2021-12-06 19:04:47,216 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-06 19:04:47,216 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-06 19:04:47,216 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_init_rx_buffers [2021-12-06 19:04:47,216 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_init_rx_buffers [2021-12-06 19:04:47,217 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2021-12-06 19:04:47,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2021-12-06 19:04:47,217 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_hw_setup [2021-12-06 19:04:47,217 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_hw_setup [2021-12-06 19:04:47,217 INFO L130 BoogieDeclarations]: Found specification of procedure div_u64 [2021-12-06 19:04:47,217 INFO L138 BoogieDeclarations]: Found implementation of procedure div_u64 [2021-12-06 19:04:47,217 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2021-12-06 19:04:47,217 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2021-12-06 19:04:47,218 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2021-12-06 19:04:47,218 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2021-12-06 19:04:47,218 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-06 19:04:47,218 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac100_set_umac_addr [2021-12-06 19:04:47,218 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac100_set_umac_addr [2021-12-06 19:04:47,218 INFO L130 BoogieDeclarations]: Found specification of procedure enh_desc_get_tx_len [2021-12-06 19:04:47,218 INFO L138 BoogieDeclarations]: Found implementation of procedure enh_desc_get_tx_len [2021-12-06 19:04:47,218 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-06 19:04:47,218 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2021-12-06 19:04:47,219 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2021-12-06 19:04:47,219 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac100_pmt [2021-12-06 19:04:47,219 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac100_pmt [2021-12-06 19:04:47,219 INFO L130 BoogieDeclarations]: Found specification of procedure enh_desc_get_tx_timestamp_status [2021-12-06 19:04:47,219 INFO L138 BoogieDeclarations]: Found implementation of procedure enh_desc_get_tx_timestamp_status [2021-12-06 19:04:47,219 INFO L130 BoogieDeclarations]: Found specification of procedure clk_get_rate [2021-12-06 19:04:47,219 INFO L138 BoogieDeclarations]: Found implementation of procedure clk_get_rate [2021-12-06 19:04:47,219 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_release [2021-12-06 19:04:47,220 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_release [2021-12-06 19:04:47,220 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac_enable_dma_irq [2021-12-06 19:04:47,220 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac_enable_dma_irq [2021-12-06 19:04:47,220 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_tx_timeout [2021-12-06 19:04:47,220 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_tx_timeout [2021-12-06 19:04:47,220 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-12-06 19:04:47,220 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-12-06 19:04:47,220 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_init_systime [2021-12-06 19:04:47,220 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_init_systime [2021-12-06 19:04:47,220 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-12-06 19:04:47,221 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-12-06 19:04:47,221 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-12-06 19:04:47,221 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-12-06 19:04:47,221 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-12-06 19:04:47,221 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-12-06 19:04:47,221 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_set_time [2021-12-06 19:04:47,221 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_set_time [2021-12-06 19:04:47,221 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac1000_core_init [2021-12-06 19:04:47,221 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac1000_core_init [2021-12-06 19:04:47,222 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac1000_get_hw_feature [2021-12-06 19:04:47,222 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac1000_get_hw_feature [2021-12-06 19:04:47,222 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_ethtool_setsettings [2021-12-06 19:04:47,222 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_ethtool_setsettings [2021-12-06 19:04:47,222 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc_array [2021-12-06 19:04:47,222 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc_array [2021-12-06 19:04:47,222 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2021-12-06 19:04:47,222 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2021-12-06 19:04:47,222 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2021-12-06 19:04:47,223 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2021-12-06 19:04:47,223 INFO L130 BoogieDeclarations]: Found specification of procedure enh_desc_set_rx_owner [2021-12-06 19:04:47,223 INFO L138 BoogieDeclarations]: Found implementation of procedure enh_desc_set_rx_owner [2021-12-06 19:04:47,223 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-12-06 19:04:47,223 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-12-06 19:04:47,223 INFO L130 BoogieDeclarations]: Found specification of procedure ndesc_get_tx_ls [2021-12-06 19:04:47,223 INFO L138 BoogieDeclarations]: Found implementation of procedure ndesc_get_tx_ls [2021-12-06 19:04:47,223 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_interrupt_instance_handler_2_5 [2021-12-06 19:04:47,223 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_interrupt_instance_handler_2_5 [2021-12-06 19:04:47,224 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_hw_init [2021-12-06 19:04:47,224 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_hw_init [2021-12-06 19:04:47,224 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-06 19:04:47,224 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac100_set_filter [2021-12-06 19:04:47,224 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac100_set_filter [2021-12-06 19:04:47,224 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2021-12-06 19:04:47,224 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2021-12-06 19:04:47,224 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-06 19:04:47,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-06 19:04:47,225 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_jumbo_frm [2021-12-06 19:04:47,225 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_jumbo_frm [2021-12-06 19:04:47,225 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_adjust_freq [2021-12-06 19:04:47,225 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_adjust_freq [2021-12-06 19:04:47,225 INFO L130 BoogieDeclarations]: Found specification of procedure phy_disconnect [2021-12-06 19:04:47,225 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_disconnect [2021-12-06 19:04:47,225 INFO L130 BoogieDeclarations]: Found specification of procedure device_may_wakeup [2021-12-06 19:04:47,225 INFO L138 BoogieDeclarations]: Found implementation of procedure device_may_wakeup [2021-12-06 19:04:47,226 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-12-06 19:04:47,226 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-12-06 19:04:47,226 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2021-12-06 19:04:47,226 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2021-12-06 19:04:47,226 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_get_time [2021-12-06 19:04:47,226 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_get_time [2021-12-06 19:04:47,226 INFO L130 BoogieDeclarations]: Found specification of procedure phy_stop [2021-12-06 19:04:47,226 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_stop [2021-12-06 19:04:47,226 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~TO~VOID [2021-12-06 19:04:47,227 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~TO~VOID [2021-12-06 19:04:47,227 INFO L130 BoogieDeclarations]: Found specification of procedure enh_desc_release_tx_desc [2021-12-06 19:04:47,227 INFO L138 BoogieDeclarations]: Found implementation of procedure enh_desc_release_tx_desc [2021-12-06 19:04:47,227 INFO L130 BoogieDeclarations]: Found specification of procedure ndesc_get_tx_timestamp_status [2021-12-06 19:04:47,227 INFO L138 BoogieDeclarations]: Found implementation of procedure ndesc_get_tx_timestamp_status [2021-12-06 19:04:47,227 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac1000_set_eee_mode [2021-12-06 19:04:47,227 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac1000_set_eee_mode [2021-12-06 19:04:47,227 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_disable_eee_mode [2021-12-06 19:04:47,227 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_disable_eee_mode [2021-12-06 19:04:47,227 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_pci_remove [2021-12-06 19:04:47,228 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_pci_remove [2021-12-06 19:04:47,228 INFO L130 BoogieDeclarations]: Found specification of procedure ndesc_set_tx_owner [2021-12-06 19:04:47,228 INFO L138 BoogieDeclarations]: Found implementation of procedure ndesc_set_tx_owner [2021-12-06 19:04:47,228 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-12-06 19:04:47,228 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-12-06 19:04:47,228 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-06 19:04:47,228 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-06 19:04:47,228 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_pltfr_remove [2021-12-06 19:04:47,228 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_pltfr_remove [2021-12-06 19:04:47,229 INFO L130 BoogieDeclarations]: Found specification of procedure ndesc_get_tx_len [2021-12-06 19:04:47,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ndesc_get_tx_len [2021-12-06 19:04:47,229 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-06 19:04:47,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-06 19:04:47,229 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_dma_interrupt [2021-12-06 19:04:47,229 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_dma_interrupt [2021-12-06 19:04:47,229 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~bool~0~TO~VOID [2021-12-06 19:04:47,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~bool~0~TO~VOID [2021-12-06 19:04:47,229 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-12-06 19:04:47,230 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-12-06 19:04:47,230 INFO L130 BoogieDeclarations]: Found specification of procedure ndesc_get_tx_status [2021-12-06 19:04:47,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ndesc_get_tx_status [2021-12-06 19:04:47,230 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_set_mac [2021-12-06 19:04:47,230 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_set_mac [2021-12-06 19:04:47,230 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_pltfr_resume [2021-12-06 19:04:47,230 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_pltfr_resume [2021-12-06 19:04:47,230 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-06 19:04:47,230 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-06 19:04:47,230 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_init_desc3 [2021-12-06 19:04:47,231 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_init_desc3 [2021-12-06 19:04:47,231 INFO L130 BoogieDeclarations]: Found specification of procedure usecs_to_jiffies [2021-12-06 19:04:47,231 INFO L138 BoogieDeclarations]: Found implementation of procedure usecs_to_jiffies [2021-12-06 19:04:47,231 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2021-12-06 19:04:47,231 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2021-12-06 19:04:47,231 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-12-06 19:04:47,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-12-06 19:04:47,231 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-12-06 19:04:47,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-12-06 19:04:47,232 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_get_mac_addr [2021-12-06 19:04:47,232 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_get_mac_addr [2021-12-06 19:04:47,232 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac_dma_flush_tx_fifo [2021-12-06 19:04:47,232 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac_dma_flush_tx_fifo [2021-12-06 19:04:47,232 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-06 19:04:47,232 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_open [2021-12-06 19:04:47,232 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_open [2021-12-06 19:04:47,232 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_remove [2021-12-06 19:04:47,232 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_remove [2021-12-06 19:04:47,233 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~X~int~X~int~TO~VOID [2021-12-06 19:04:47,233 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~X~int~X~int~TO~VOID [2021-12-06 19:04:47,233 INFO L130 BoogieDeclarations]: Found specification of procedure enh_desc_get_rx_owner [2021-12-06 19:04:47,233 INFO L138 BoogieDeclarations]: Found implementation of procedure enh_desc_get_rx_owner [2021-12-06 19:04:47,233 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync [2021-12-06 19:04:47,233 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync [2021-12-06 19:04:47,233 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_get_ts_info [2021-12-06 19:04:47,233 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_get_ts_info [2021-12-06 19:04:47,233 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_ethtool_setmsglevel [2021-12-06 19:04:47,234 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_ethtool_setmsglevel [2021-12-06 19:04:47,234 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-12-06 19:04:47,234 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-12-06 19:04:47,234 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_ethtool_get_regs_len [2021-12-06 19:04:47,234 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_ethtool_get_regs_len [2021-12-06 19:04:47,234 INFO L130 BoogieDeclarations]: Found specification of procedure ndesc_prepare_tx_desc [2021-12-06 19:04:47,234 INFO L138 BoogieDeclarations]: Found implementation of procedure ndesc_prepare_tx_desc [2021-12-06 19:04:47,234 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-06 19:04:47,234 INFO L130 BoogieDeclarations]: Found specification of procedure ndesc_get_rx_timestamp_status [2021-12-06 19:04:47,235 INFO L138 BoogieDeclarations]: Found implementation of procedure ndesc_get_rx_timestamp_status [2021-12-06 19:04:47,235 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_config_hw_tstamping [2021-12-06 19:04:47,235 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_config_hw_tstamping [2021-12-06 19:04:47,235 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac1000_flow_ctrl [2021-12-06 19:04:47,235 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac1000_flow_ctrl [2021-12-06 19:04:47,235 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2021-12-06 19:04:47,235 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2021-12-06 19:04:47,235 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_adjust_link [2021-12-06 19:04:47,235 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_adjust_link [2021-12-06 19:04:47,235 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_eee_init [2021-12-06 19:04:47,236 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_eee_init [2021-12-06 19:04:47,236 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-12-06 19:04:47,236 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-12-06 19:04:47,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-06 19:04:47,236 INFO L130 BoogieDeclarations]: Found specification of procedure init_dma_desc_rings [2021-12-06 19:04:47,236 INFO L138 BoogieDeclarations]: Found implementation of procedure init_dma_desc_rings [2021-12-06 19:04:47,236 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-12-06 19:04:47,236 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-12-06 19:04:47,236 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac100_dma_init [2021-12-06 19:04:47,237 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac100_dma_init [2021-12-06 19:04:47,237 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-06 19:04:47,237 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-06 19:04:47,237 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-12-06 19:04:47,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-12-06 19:04:47,237 INFO L130 BoogieDeclarations]: Found specification of procedure enh_desc_set_tx_owner [2021-12-06 19:04:47,237 INFO L138 BoogieDeclarations]: Found implementation of procedure enh_desc_set_tx_owner [2021-12-06 19:04:47,237 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-12-06 19:04:47,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-12-06 19:04:47,238 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_get_systime [2021-12-06 19:04:47,238 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_get_systime [2021-12-06 19:04:47,238 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_interrupt_interrupt_instance_2 [2021-12-06 19:04:47,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_interrupt_interrupt_instance_2 [2021-12-06 19:04:47,238 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_get_hw_features [2021-12-06 19:04:47,238 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_get_hw_features [2021-12-06 19:04:47,238 INFO L130 BoogieDeclarations]: Found specification of procedure __netdev_alloc_skb [2021-12-06 19:04:47,238 INFO L138 BoogieDeclarations]: Found implementation of procedure __netdev_alloc_skb [2021-12-06 19:04:47,238 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac_dma_stop_tx [2021-12-06 19:04:47,239 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac_dma_stop_tx [2021-12-06 19:04:47,239 INFO L130 BoogieDeclarations]: Found specification of procedure div_u64_rem [2021-12-06 19:04:47,239 INFO L138 BoogieDeclarations]: Found implementation of procedure div_u64_rem [2021-12-06 19:04:47,239 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac_dma_interrupt [2021-12-06 19:04:47,239 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac_dma_interrupt [2021-12-06 19:04:47,239 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac100_get_umac_addr [2021-12-06 19:04:47,239 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac100_get_umac_addr [2021-12-06 19:04:47,239 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_pci_probe [2021-12-06 19:04:47,240 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_pci_probe [2021-12-06 19:04:47,240 INFO L130 BoogieDeclarations]: Found specification of procedure seq_lseek [2021-12-06 19:04:47,240 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_lseek [2021-12-06 19:04:47,240 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2021-12-06 19:04:47,240 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2021-12-06 19:04:47,240 INFO L130 BoogieDeclarations]: Found specification of procedure enh_desc_get_ext_status [2021-12-06 19:04:47,240 INFO L138 BoogieDeclarations]: Found implementation of procedure enh_desc_get_ext_status [2021-12-06 19:04:47,240 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_dvr_probe [2021-12-06 19:04:47,240 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_dvr_probe [2021-12-06 19:04:47,240 INFO L130 BoogieDeclarations]: Found specification of procedure enh_desc_get_timestamp [2021-12-06 19:04:47,241 INFO L138 BoogieDeclarations]: Found implementation of procedure enh_desc_get_timestamp [2021-12-06 19:04:47,241 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2021-12-06 19:04:47,241 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2021-12-06 19:04:47,241 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac_dma_stop_rx [2021-12-06 19:04:47,241 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac_dma_stop_rx [2021-12-06 19:04:47,241 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_resume [2021-12-06 19:04:47,241 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_resume [2021-12-06 19:04:47,241 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac100_dma_diagnostic_fr [2021-12-06 19:04:47,242 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac100_dma_diagnostic_fr [2021-12-06 19:04:47,242 INFO L130 BoogieDeclarations]: Found specification of procedure free_dma_desc_resources [2021-12-06 19:04:47,242 INFO L138 BoogieDeclarations]: Found implementation of procedure free_dma_desc_resources [2021-12-06 19:04:47,242 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_mdio_reset [2021-12-06 19:04:47,242 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_mdio_reset [2021-12-06 19:04:47,242 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_clean_desc3 [2021-12-06 19:04:47,242 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_clean_desc3 [2021-12-06 19:04:47,242 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-06 19:04:47,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-06 19:04:47,242 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_enable [2021-12-06 19:04:47,243 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_enable [2021-12-06 19:04:47,243 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_ethtool_op_set_eee [2021-12-06 19:04:47,243 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_ethtool_op_set_eee [2021-12-06 19:04:47,243 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-12-06 19:04:47,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-12-06 19:04:47,243 INFO L130 BoogieDeclarations]: Found specification of procedure ndesc_init_tx_desc [2021-12-06 19:04:47,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ndesc_init_tx_desc [2021-12-06 19:04:47,243 INFO L130 BoogieDeclarations]: Found specification of procedure enh_desc_init_tx_desc [2021-12-06 19:04:47,243 INFO L138 BoogieDeclarations]: Found implementation of procedure enh_desc_init_tx_desc [2021-12-06 19:04:47,244 INFO L130 BoogieDeclarations]: Found specification of procedure enh_desc_close_tx_desc [2021-12-06 19:04:47,244 INFO L138 BoogieDeclarations]: Found implementation of procedure enh_desc_close_tx_desc [2021-12-06 19:04:47,244 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac100_irq_status [2021-12-06 19:04:47,244 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac100_irq_status [2021-12-06 19:04:47,244 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_set_wol [2021-12-06 19:04:47,244 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_set_wol [2021-12-06 19:04:47,244 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_adjust_systime [2021-12-06 19:04:47,244 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_adjust_systime [2021-12-06 19:04:47,244 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac1000_set_umac_addr [2021-12-06 19:04:47,245 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac1000_set_umac_addr [2021-12-06 19:04:47,245 INFO L130 BoogieDeclarations]: Found specification of procedure ndesc_clear_tx_ic [2021-12-06 19:04:47,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ndesc_clear_tx_ic [2021-12-06 19:04:47,245 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2021-12-06 19:04:47,245 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2021-12-06 19:04:47,245 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2021-12-06 19:04:47,245 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2021-12-06 19:04:47,245 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-12-06 19:04:47,245 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-12-06 19:04:47,245 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_unregister_platform [2021-12-06 19:04:47,246 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_unregister_platform [2021-12-06 19:04:47,246 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac1000_irq_status [2021-12-06 19:04:47,246 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac1000_irq_status [2021-12-06 19:04:47,246 INFO L130 BoogieDeclarations]: Found specification of procedure ndesc_get_timestamp [2021-12-06 19:04:47,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ndesc_get_timestamp [2021-12-06 19:04:47,246 INFO L130 BoogieDeclarations]: Found specification of procedure ndesc_get_rx_owner [2021-12-06 19:04:47,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ndesc_get_rx_owner [2021-12-06 19:04:47,246 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-06 19:04:47,246 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-06 19:04:47,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-06 19:04:47,247 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_set_rx_mode [2021-12-06 19:04:47,247 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_set_rx_mode [2021-12-06 19:04:47,247 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2021-12-06 19:04:47,247 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2021-12-06 19:04:47,247 INFO L130 BoogieDeclarations]: Found specification of procedure seq_read [2021-12-06 19:04:47,247 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_read [2021-12-06 19:04:47,247 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2021-12-06 19:04:47,247 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2021-12-06 19:04:47,247 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_display_ring [2021-12-06 19:04:47,247 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_display_ring [2021-12-06 19:04:47,248 INFO L130 BoogieDeclarations]: Found specification of procedure bitrev32 [2021-12-06 19:04:47,248 INFO L138 BoogieDeclarations]: Found implementation of procedure bitrev32 [2021-12-06 19:04:47,248 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_ethtool_getdrvinfo [2021-12-06 19:04:47,248 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_ethtool_getdrvinfo [2021-12-06 19:04:47,248 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_config_sub_second_increment [2021-12-06 19:04:47,248 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_config_sub_second_increment [2021-12-06 19:04:47,248 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-12-06 19:04:47,248 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-12-06 19:04:47,248 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_check_if_running [2021-12-06 19:04:47,248 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_check_if_running [2021-12-06 19:04:47,249 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac1000_get_umac_addr [2021-12-06 19:04:47,249 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac1000_get_umac_addr [2021-12-06 19:04:47,249 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_ethtool_op_get_eee [2021-12-06 19:04:47,249 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_ethtool_op_get_eee [2021-12-06 19:04:47,249 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac1000_pmt [2021-12-06 19:04:47,249 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac1000_pmt [2021-12-06 19:04:47,249 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2021-12-06 19:04:47,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2021-12-06 19:04:47,249 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_schedule [2021-12-06 19:04:47,249 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_schedule [2021-12-06 19:04:47,250 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-12-06 19:04:47,250 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-12-06 19:04:47,250 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_clk_disable_unprepare_21 [2021-12-06 19:04:47,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_clk_disable_unprepare_21 [2021-12-06 19:04:47,250 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_refill_desc3 [2021-12-06 19:04:47,250 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_refill_desc3 [2021-12-06 19:04:47,250 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_clear_descriptors [2021-12-06 19:04:47,250 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_clear_descriptors [2021-12-06 19:04:47,250 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~TO~int [2021-12-06 19:04:47,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~TO~int [2021-12-06 19:04:47,251 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac100_flow_ctrl [2021-12-06 19:04:47,251 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac100_flow_ctrl [2021-12-06 19:04:47,251 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-06 19:04:47,251 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_sysfs_dma_cap_open [2021-12-06 19:04:47,251 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_sysfs_dma_cap_open [2021-12-06 19:04:47,251 INFO L130 BoogieDeclarations]: Found specification of procedure phy_start [2021-12-06 19:04:47,251 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_start [2021-12-06 19:04:47,251 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2021-12-06 19:04:47,251 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2021-12-06 19:04:47,252 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq [2021-12-06 19:04:47,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq [2021-12-06 19:04:47,252 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-12-06 19:04:47,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-12-06 19:04:47,252 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2021-12-06 19:04:47,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2021-12-06 19:04:47,252 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_disable_dma_irq [2021-12-06 19:04:47,252 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_disable_dma_irq [2021-12-06 19:04:47,252 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-12-06 19:04:47,252 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-12-06 19:04:47,253 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-12-06 19:04:47,253 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-12-06 19:04:47,253 INFO L130 BoogieDeclarations]: Found specification of procedure single_open [2021-12-06 19:04:47,253 INFO L138 BoogieDeclarations]: Found implementation of procedure single_open [2021-12-06 19:04:47,253 INFO L130 BoogieDeclarations]: Found specification of procedure irq_set_irq_wake [2021-12-06 19:04:47,253 INFO L138 BoogieDeclarations]: Found implementation of procedure irq_set_irq_wake [2021-12-06 19:04:47,253 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_dvr_remove [2021-12-06 19:04:47,253 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_dvr_remove [2021-12-06 19:04:47,253 INFO L130 BoogieDeclarations]: Found specification of procedure enh_desc_get_tx_status [2021-12-06 19:04:47,254 INFO L138 BoogieDeclarations]: Found implementation of procedure enh_desc_get_tx_status [2021-12-06 19:04:47,254 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac_dma_start_rx [2021-12-06 19:04:47,254 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac_dma_start_rx [2021-12-06 19:04:47,254 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~VOID [2021-12-06 19:04:47,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~VOID [2021-12-06 19:04:47,254 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-06 19:04:47,254 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-06 19:04:47,254 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_is_jumbo_frm [2021-12-06 19:04:47,254 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_is_jumbo_frm [2021-12-06 19:04:47,254 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_create_file [2021-12-06 19:04:47,255 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_create_file [2021-12-06 19:04:47,255 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_sysfs_ring_open [2021-12-06 19:04:47,255 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_sysfs_ring_open [2021-12-06 19:04:47,255 INFO L130 BoogieDeclarations]: Found specification of procedure enh_desc_get_tx_owner [2021-12-06 19:04:47,255 INFO L138 BoogieDeclarations]: Found implementation of procedure enh_desc_get_tx_owner [2021-12-06 19:04:47,255 INFO L130 BoogieDeclarations]: Found specification of procedure single_release [2021-12-06 19:04:47,255 INFO L138 BoogieDeclarations]: Found implementation of procedure single_release [2021-12-06 19:04:47,255 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_irq_byname [2021-12-06 19:04:47,255 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_irq_byname [2021-12-06 19:04:47,256 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_tx_err [2021-12-06 19:04:47,256 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_tx_err [2021-12-06 19:04:47,256 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-12-06 19:04:47,256 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-12-06 19:04:47,256 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac_dma_start_tx [2021-12-06 19:04:47,256 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac_dma_start_tx [2021-12-06 19:04:47,256 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2021-12-06 19:04:47,256 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2021-12-06 19:04:47,256 INFO L130 BoogieDeclarations]: Found specification of procedure enh_desc_prepare_tx_desc [2021-12-06 19:04:47,256 INFO L138 BoogieDeclarations]: Found implementation of procedure enh_desc_prepare_tx_desc [2021-12-06 19:04:47,257 INFO L130 BoogieDeclarations]: Found specification of procedure ndesc_get_rx_frame_len [2021-12-06 19:04:47,257 INFO L138 BoogieDeclarations]: Found implementation of procedure ndesc_get_rx_frame_len [2021-12-06 19:04:47,257 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq_18 [2021-12-06 19:04:47,257 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq_18 [2021-12-06 19:04:47,257 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq_17 [2021-12-06 19:04:47,257 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq_17 [2021-12-06 19:04:47,257 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq_16 [2021-12-06 19:04:47,257 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq_16 [2021-12-06 19:04:47,257 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2021-12-06 19:04:47,257 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2021-12-06 19:04:47,258 INFO L130 BoogieDeclarations]: Found specification of procedure ndesc_tx_set_on_chain [2021-12-06 19:04:47,258 INFO L138 BoogieDeclarations]: Found implementation of procedure ndesc_tx_set_on_chain [2021-12-06 19:04:47,258 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_get_pauseparam [2021-12-06 19:04:47,258 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_get_pauseparam [2021-12-06 19:04:47,258 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-12-06 19:04:47,258 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-12-06 19:04:47,258 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2021-12-06 19:04:47,258 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2021-12-06 19:04:47,258 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac100_dump_dma_regs [2021-12-06 19:04:47,258 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac100_dump_dma_regs [2021-12-06 19:04:47,258 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2021-12-06 19:04:47,259 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2021-12-06 19:04:47,259 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_ethtool_getsettings [2021-12-06 19:04:47,259 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_ethtool_getsettings [2021-12-06 19:04:47,259 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-12-06 19:04:47,259 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-12-06 19:04:47,259 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-12-06 19:04:47,259 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-12-06 19:04:47,259 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_set_coalesce [2021-12-06 19:04:47,259 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_set_coalesce [2021-12-06 19:04:47,259 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-12-06 19:04:47,260 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-12-06 19:04:47,260 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac_disable_dma_irq [2021-12-06 19:04:47,260 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac_disable_dma_irq [2021-12-06 19:04:47,260 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_get_wol [2021-12-06 19:04:47,260 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_get_wol [2021-12-06 19:04:47,260 INFO L130 BoogieDeclarations]: Found specification of procedure enh_desc_clear_tx_ic [2021-12-06 19:04:47,260 INFO L138 BoogieDeclarations]: Found implementation of procedure enh_desc_clear_tx_ic [2021-12-06 19:04:47,260 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-06 19:04:47,260 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-12-06 19:04:47,260 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-12-06 19:04:47,260 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_config [2021-12-06 19:04:47,261 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_config [2021-12-06 19:04:47,261 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_adjust_time [2021-12-06 19:04:47,261 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_adjust_time [2021-12-06 19:04:47,261 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-12-06 19:04:47,261 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-12-06 19:04:47,261 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2021-12-06 19:04:47,261 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2021-12-06 19:04:47,261 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_pci_resume [2021-12-06 19:04:47,261 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_pci_resume [2021-12-06 19:04:48,245 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 19:04:48,249 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 19:04:48,362 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-06 19:05:10,113 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 19:05:10,141 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 19:05:10,141 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-06 19:05:10,147 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 07:05:10 BoogieIcfgContainer [2021-12-06 19:05:10,147 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 19:05:10,148 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-06 19:05:10,148 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-06 19:05:10,150 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-06 19:05:10,151 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 07:04:38" (1/3) ... [2021-12-06 19:05:10,151 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2be9a55b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 07:05:10, skipping insertion in model container [2021-12-06 19:05:10,151 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:04:45" (2/3) ... [2021-12-06 19:05:10,151 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2be9a55b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 07:05:10, skipping insertion in model container [2021-12-06 19:05:10,151 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 07:05:10" (3/3) ... [2021-12-06 19:05:10,152 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_linux-drivers-clk1_drivers-net-ethernet-stmicro-stmmac-stmmac.cil.i [2021-12-06 19:05:10,156 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-06 19:05:10,156 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-06 19:05:10,203 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-06 19:05:10,208 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-06 19:05:10,208 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-06 19:05:10,283 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) [2021-12-06 19:05:10,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-12-06 19:05:10,287 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:05:10,288 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] [2021-12-06 19:05:10,288 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] === [2021-12-06 19:05:10,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:05:10,292 INFO L85 PathProgramCache]: Analyzing trace with hash 1399050847, now seen corresponding path program 1 times [2021-12-06 19:05:10,298 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:05:10,299 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357808893] [2021-12-06 19:05:10,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:05:10,299 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:05:10,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:05:11,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-06 19:05:11,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:05:11,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:05:11,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:05:11,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 19:05:11,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:05:11,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-06 19:05:11,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:05:11,580 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-12-06 19:05:11,580 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:05:11,580 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357808893] [2021-12-06 19:05:11,581 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [357808893] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:05:11,581 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:05:11,581 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 19:05:11,582 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355527808] [2021-12-06 19:05:11,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:05:11,586 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 19:05:11,586 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:05:11,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 19:05:11,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 19:05:11,615 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) [2021-12-06 19:05:12,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:05:12,005 INFO L93 Difference]: Finished difference Result 9961 states and 14024 transitions. [2021-12-06 19:05:12,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 19:05:12,006 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 [2021-12-06 19:05:12,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:05:12,052 INFO L225 Difference]: With dead ends: 9961 [2021-12-06 19:05:12,053 INFO L226 Difference]: Without dead ends: 4977 [2021-12-06 19:05:12,079 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 [2021-12-06 19:05:12,082 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 [2021-12-06 19:05:12,083 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] [2021-12-06 19:05:12,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4977 states. [2021-12-06 19:05:12,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4977 to 4977. [2021-12-06 19:05:12,318 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) [2021-12-06 19:05:12,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4977 states to 4977 states and 6924 transitions. [2021-12-06 19:05:12,361 INFO L78 Accepts]: Start accepts. Automaton has 4977 states and 6924 transitions. Word has length 39 [2021-12-06 19:05:12,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:05:12,363 INFO L470 AbstractCegarLoop]: Abstraction has 4977 states and 6924 transitions. [2021-12-06 19:05:12,363 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) [2021-12-06 19:05:12,363 INFO L276 IsEmpty]: Start isEmpty. Operand 4977 states and 6924 transitions. [2021-12-06 19:05:12,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-12-06 19:05:12,365 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:05:12,365 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] [2021-12-06 19:05:12,365 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-06 19:05:12,366 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] === [2021-12-06 19:05:12,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:05:12,366 INFO L85 PathProgramCache]: Analyzing trace with hash -1062149609, now seen corresponding path program 1 times [2021-12-06 19:05:12,366 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:05:12,367 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38185444] [2021-12-06 19:05:12,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:05:12,367 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:05:12,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:05:13,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-06 19:05:13,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:05:13,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:05:13,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:05:13,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 19:05:13,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:05:13,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-06 19:05:13,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:05:13,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-06 19:05:13,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:05:13,117 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-12-06 19:05:13,117 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:05:13,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38185444] [2021-12-06 19:05:13,117 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [38185444] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:05:13,117 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:05:13,118 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 19:05:13,118 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063507154] [2021-12-06 19:05:13,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:05:13,119 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 19:05:13,119 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:05:13,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 19:05:13,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 19:05:13,120 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) [2021-12-06 19:05:13,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:05:13,588 INFO L93 Difference]: Finished difference Result 9901 states and 14010 transitions. [2021-12-06 19:05:13,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-06 19:05:13,588 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 [2021-12-06 19:05:13,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:05:13,728 INFO L225 Difference]: With dead ends: 9901 [2021-12-06 19:05:13,728 INFO L226 Difference]: Without dead ends: 8847 [2021-12-06 19:05:13,735 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 [2021-12-06 19:05:13,736 INFO L933 BasicCegarLoop]: 8563 mSDtfsCounter, 7024 mSDsluCounter, 24080 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7024 SdHoareTripleChecker+Valid, 32643 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 [2021-12-06 19:05:13,737 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7024 Valid, 32643 Invalid, 11 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 19:05:13,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8847 states. [2021-12-06 19:05:14,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8847 to 8816. [2021-12-06 19:05:14,065 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) [2021-12-06 19:05:14,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8816 states to 8816 states and 12436 transitions. [2021-12-06 19:05:14,113 INFO L78 Accepts]: Start accepts. Automaton has 8816 states and 12436 transitions. Word has length 44 [2021-12-06 19:05:14,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:05:14,114 INFO L470 AbstractCegarLoop]: Abstraction has 8816 states and 12436 transitions. [2021-12-06 19:05:14,114 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) [2021-12-06 19:05:14,114 INFO L276 IsEmpty]: Start isEmpty. Operand 8816 states and 12436 transitions. [2021-12-06 19:05:14,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1053 [2021-12-06 19:05:14,205 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:05:14,206 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] [2021-12-06 19:05:14,207 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-06 19:05:14,207 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] === [2021-12-06 19:05:14,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:05:14,207 INFO L85 PathProgramCache]: Analyzing trace with hash -697889187, now seen corresponding path program 1 times [2021-12-06 19:05:14,208 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:05:14,208 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891531372] [2021-12-06 19:05:14,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:05:14,208 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:05:14,682 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-06 19:05:14,683 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [369336848] [2021-12-06 19:05:14,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:05:14,683 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 19:05:14,683 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_700f116e-6fd6-4a0e-994b-fc6101dc3fce/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:05:14,684 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_700f116e-6fd6-4a0e-994b-fc6101dc3fce/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 19:05:14,685 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_700f116e-6fd6-4a0e-994b-fc6101dc3fce/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-06 19:05:17,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:05:17,667 INFO L263 TraceCheckSpWp]: Trace formula consists of 21679 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-06 19:05:17,706 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:05:18,648 INFO L134 CoverageAnalysis]: Checked inductivity of 4788 backedges. 1515 proven. 0 refuted. 0 times theorem prover too weak. 3273 trivial. 0 not checked. [2021-12-06 19:05:18,648 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:05:18,648 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:05:18,648 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891531372] [2021-12-06 19:05:18,649 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-06 19:05:18,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [369336848] [2021-12-06 19:05:18,649 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [369336848] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:05:18,649 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:05:18,649 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 19:05:18,650 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11033174] [2021-12-06 19:05:18,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:05:18,652 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 19:05:18,653 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:05:18,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 19:05:18,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-06 19:05:18,654 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) [2021-12-06 19:05:19,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:05:19,098 INFO L93 Difference]: Finished difference Result 16454 states and 23119 transitions. [2021-12-06 19:05:19,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 19:05:19,099 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 [2021-12-06 19:05:19,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:05:19,159 INFO L225 Difference]: With dead ends: 16454 [2021-12-06 19:05:19,159 INFO L226 Difference]: Without dead ends: 8820 [2021-12-06 19:05:19,194 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 [2021-12-06 19:05:19,195 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, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 19:05:19,195 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 34518 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 19:05:19,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8820 states. [2021-12-06 19:05:19,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8820 to 8820. [2021-12-06 19:05:19,486 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) [2021-12-06 19:05:19,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8820 states to 8820 states and 12442 transitions. [2021-12-06 19:05:19,525 INFO L78 Accepts]: Start accepts. Automaton has 8820 states and 12442 transitions. Word has length 1052 [2021-12-06 19:05:19,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:05:19,526 INFO L470 AbstractCegarLoop]: Abstraction has 8820 states and 12442 transitions. [2021-12-06 19:05:19,527 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) [2021-12-06 19:05:19,527 INFO L276 IsEmpty]: Start isEmpty. Operand 8820 states and 12442 transitions. [2021-12-06 19:05:19,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1059 [2021-12-06 19:05:19,610 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:05:19,611 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] [2021-12-06 19:05:19,681 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_700f116e-6fd6-4a0e-994b-fc6101dc3fce/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-06 19:05:19,811 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_700f116e-6fd6-4a0e-994b-fc6101dc3fce/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 19:05:19,812 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] === [2021-12-06 19:05:19,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:05:19,813 INFO L85 PathProgramCache]: Analyzing trace with hash 1780813479, now seen corresponding path program 1 times [2021-12-06 19:05:19,813 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:05:19,813 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270417680] [2021-12-06 19:05:19,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:05:19,814 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:05:20,242 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-06 19:05:20,242 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [261051239] [2021-12-06 19:05:20,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:05:20,243 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 19:05:20,243 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_700f116e-6fd6-4a0e-994b-fc6101dc3fce/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:05:20,244 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_700f116e-6fd6-4a0e-994b-fc6101dc3fce/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 19:05:20,245 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_700f116e-6fd6-4a0e-994b-fc6101dc3fce/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-06 19:05:22,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:05:23,042 INFO L263 TraceCheckSpWp]: Trace formula consists of 21694 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-06 19:05:23,067 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:05:23,974 INFO L134 CoverageAnalysis]: Checked inductivity of 4815 backedges. 1515 proven. 0 refuted. 0 times theorem prover too weak. 3300 trivial. 0 not checked. [2021-12-06 19:05:23,974 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:05:23,974 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:05:23,974 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270417680] [2021-12-06 19:05:23,974 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-06 19:05:23,974 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [261051239] [2021-12-06 19:05:23,974 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [261051239] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:05:23,974 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:05:23,975 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 19:05:23,975 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596315340] [2021-12-06 19:05:23,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:05:23,976 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 19:05:23,976 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:05:23,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 19:05:23,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-06 19:05:23,977 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) [2021-12-06 19:05:24,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:05:24,325 INFO L93 Difference]: Finished difference Result 16462 states and 23130 transitions. [2021-12-06 19:05:24,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 19:05:24,326 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 [2021-12-06 19:05:24,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:05:24,379 INFO L225 Difference]: With dead ends: 16462 [2021-12-06 19:05:24,379 INFO L226 Difference]: Without dead ends: 8824 [2021-12-06 19:05:24,409 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 [2021-12-06 19:05:24,410 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, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 19:05:24,410 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 34525 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 19:05:24,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8824 states. [2021-12-06 19:05:24,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8824 to 8824. [2021-12-06 19:05:24,666 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) [2021-12-06 19:05:24,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8824 states to 8824 states and 12447 transitions. [2021-12-06 19:05:24,754 INFO L78 Accepts]: Start accepts. Automaton has 8824 states and 12447 transitions. Word has length 1058 [2021-12-06 19:05:24,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:05:24,755 INFO L470 AbstractCegarLoop]: Abstraction has 8824 states and 12447 transitions. [2021-12-06 19:05:24,755 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) [2021-12-06 19:05:24,755 INFO L276 IsEmpty]: Start isEmpty. Operand 8824 states and 12447 transitions. [2021-12-06 19:05:24,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1067 [2021-12-06 19:05:24,810 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:05:24,811 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] [2021-12-06 19:05:24,869 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_700f116e-6fd6-4a0e-994b-fc6101dc3fce/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-12-06 19:05:25,012 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_700f116e-6fd6-4a0e-994b-fc6101dc3fce/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 19:05:25,012 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] === [2021-12-06 19:05:25,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:05:25,013 INFO L85 PathProgramCache]: Analyzing trace with hash -367793566, now seen corresponding path program 1 times [2021-12-06 19:05:25,013 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:05:25,013 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642393292] [2021-12-06 19:05:25,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:05:25,013 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:05:25,421 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-06 19:05:25,421 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2098592611] [2021-12-06 19:05:25,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:05:25,421 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 19:05:25,421 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_700f116e-6fd6-4a0e-994b-fc6101dc3fce/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:05:25,422 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_700f116e-6fd6-4a0e-994b-fc6101dc3fce/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 19:05:25,423 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_700f116e-6fd6-4a0e-994b-fc6101dc3fce/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-06 19:05:28,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:05:28,188 INFO L263 TraceCheckSpWp]: Trace formula consists of 21744 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-06 19:05:28,209 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:05:29,001 INFO L134 CoverageAnalysis]: Checked inductivity of 4851 backedges. 1490 proven. 0 refuted. 0 times theorem prover too weak. 3361 trivial. 0 not checked. [2021-12-06 19:05:29,001 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:05:29,001 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:05:29,001 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642393292] [2021-12-06 19:05:29,001 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-06 19:05:29,001 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2098592611] [2021-12-06 19:05:29,002 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2098592611] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:05:29,002 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:05:29,002 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 19:05:29,002 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614206745] [2021-12-06 19:05:29,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:05:29,003 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 19:05:29,003 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:05:29,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 19:05:29,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 19:05:29,004 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) [2021-12-06 19:05:29,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:05:29,249 INFO L93 Difference]: Finished difference Result 17695 states and 25466 transitions. [2021-12-06 19:05:29,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 19:05:29,250 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 [2021-12-06 19:05:29,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:05:29,291 INFO L225 Difference]: With dead ends: 17695 [2021-12-06 19:05:29,291 INFO L226 Difference]: Without dead ends: 8904 [2021-12-06 19:05:29,321 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 [2021-12-06 19:05:29,322 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 [2021-12-06 19:05:29,322 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] [2021-12-06 19:05:29,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8904 states. [2021-12-06 19:05:29,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8904 to 8832. [2021-12-06 19:05:29,601 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) [2021-12-06 19:05:29,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8832 states to 8832 states and 12457 transitions. [2021-12-06 19:05:29,635 INFO L78 Accepts]: Start accepts. Automaton has 8832 states and 12457 transitions. Word has length 1066 [2021-12-06 19:05:29,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:05:29,636 INFO L470 AbstractCegarLoop]: Abstraction has 8832 states and 12457 transitions. [2021-12-06 19:05:29,637 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) [2021-12-06 19:05:29,637 INFO L276 IsEmpty]: Start isEmpty. Operand 8832 states and 12457 transitions. [2021-12-06 19:05:29,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1082 [2021-12-06 19:05:29,675 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:05:29,675 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] [2021-12-06 19:05:29,744 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_700f116e-6fd6-4a0e-994b-fc6101dc3fce/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-12-06 19:05:29,876 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_700f116e-6fd6-4a0e-994b-fc6101dc3fce/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 19:05:29,876 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] === [2021-12-06 19:05:29,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:05:29,877 INFO L85 PathProgramCache]: Analyzing trace with hash 1909309866, now seen corresponding path program 1 times [2021-12-06 19:05:29,877 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:05:29,878 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941802666] [2021-12-06 19:05:29,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:05:29,878 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:05:30,322 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-06 19:05:30,322 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [663658233] [2021-12-06 19:05:30,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:05:30,322 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 19:05:30,322 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_700f116e-6fd6-4a0e-994b-fc6101dc3fce/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:05:30,323 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_700f116e-6fd6-4a0e-994b-fc6101dc3fce/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 19:05:30,324 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_700f116e-6fd6-4a0e-994b-fc6101dc3fce/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-06 19:05:32,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:05:33,055 INFO L263 TraceCheckSpWp]: Trace formula consists of 21851 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-06 19:05:33,076 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:05:33,857 INFO L134 CoverageAnalysis]: Checked inductivity of 4914 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4914 trivial. 0 not checked. [2021-12-06 19:05:33,857 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:05:33,857 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:05:33,857 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941802666] [2021-12-06 19:05:33,857 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-06 19:05:33,857 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [663658233] [2021-12-06 19:05:33,857 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [663658233] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:05:33,857 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:05:33,858 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 19:05:33,858 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610932657] [2021-12-06 19:05:33,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:05:33,859 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 19:05:33,859 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:05:33,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 19:05:33,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 19:05:33,860 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) [2021-12-06 19:05:35,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:05:35,090 INFO L93 Difference]: Finished difference Result 23113 states and 33198 transitions. [2021-12-06 19:05:35,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 19:05:35,091 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 [2021-12-06 19:05:35,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:05:35,144 INFO L225 Difference]: With dead ends: 23113 [2021-12-06 19:05:35,144 INFO L226 Difference]: Without dead ends: 14299 [2021-12-06 19:05:35,170 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 [2021-12-06 19:05:35,170 INFO L933 BasicCegarLoop]: 10899 mSDtfsCounter, 5503 mSDsluCounter, 27454 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1890 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5880 SdHoareTripleChecker+Valid, 38353 SdHoareTripleChecker+Invalid, 1908 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1890 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-06 19:05:35,171 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5880 Valid, 38353 Invalid, 1908 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1890 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-06 19:05:35,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14299 states. [2021-12-06 19:05:35,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14299 to 8835. [2021-12-06 19:05:35,509 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) [2021-12-06 19:05:35,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8835 states to 8835 states and 12460 transitions. [2021-12-06 19:05:35,543 INFO L78 Accepts]: Start accepts. Automaton has 8835 states and 12460 transitions. Word has length 1081 [2021-12-06 19:05:35,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:05:35,544 INFO L470 AbstractCegarLoop]: Abstraction has 8835 states and 12460 transitions. [2021-12-06 19:05:35,544 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) [2021-12-06 19:05:35,544 INFO L276 IsEmpty]: Start isEmpty. Operand 8835 states and 12460 transitions. [2021-12-06 19:05:35,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1082 [2021-12-06 19:05:35,580 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:05:35,580 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] [2021-12-06 19:05:35,657 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_700f116e-6fd6-4a0e-994b-fc6101dc3fce/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2021-12-06 19:05:35,781 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_700f116e-6fd6-4a0e-994b-fc6101dc3fce/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 19:05:35,781 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] === [2021-12-06 19:05:35,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:05:35,782 INFO L85 PathProgramCache]: Analyzing trace with hash -1393992024, now seen corresponding path program 1 times [2021-12-06 19:05:35,782 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:05:35,782 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585459415] [2021-12-06 19:05:35,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:05:35,782 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:05:36,088 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-06 19:05:36,089 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2012067695] [2021-12-06 19:05:36,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:05:36,089 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 19:05:36,089 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_700f116e-6fd6-4a0e-994b-fc6101dc3fce/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:05:36,090 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_700f116e-6fd6-4a0e-994b-fc6101dc3fce/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 19:05:36,091 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_700f116e-6fd6-4a0e-994b-fc6101dc3fce/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-06 19:05:38,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:05:38,895 INFO L263 TraceCheckSpWp]: Trace formula consists of 21850 conjuncts, 76 conjunts are in the unsatisfiable core [2021-12-06 19:05:38,919 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:05:40,249 INFO L134 CoverageAnalysis]: Checked inductivity of 4914 backedges. 1388 proven. 66 refuted. 0 times theorem prover too weak. 3460 trivial. 0 not checked. [2021-12-06 19:05:40,249 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 19:05:45,595 INFO L134 CoverageAnalysis]: Checked inductivity of 4914 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 4883 trivial. 0 not checked. [2021-12-06 19:05:45,595 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:05:45,595 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585459415] [2021-12-06 19:05:45,595 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-06 19:05:45,595 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2012067695] [2021-12-06 19:05:45,595 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2012067695] provided 1 perfect and 1 imperfect interpolant sequences [2021-12-06 19:05:45,595 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 19:05:45,596 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 14 [2021-12-06 19:05:45,596 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029207156] [2021-12-06 19:05:45,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:05:45,597 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-06 19:05:45,597 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:05:45,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-06 19:05:45,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2021-12-06 19:05:45,598 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) [2021-12-06 19:06:13,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:06:13,615 INFO L93 Difference]: Finished difference Result 29845 states and 44526 transitions. [2021-12-06 19:06:13,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-06 19:06:13,616 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 [2021-12-06 19:06:13,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:06:13,692 INFO L225 Difference]: With dead ends: 29845 [2021-12-06 19:06:13,692 INFO L226 Difference]: Without dead ends: 21042 [2021-12-06 19:06:13,717 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2168 GetRequests, 2148 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=104, Invalid=358, Unknown=0, NotChecked=0, Total=462 [2021-12-06 19:06:13,718 INFO L933 BasicCegarLoop]: 8612 mSDtfsCounter, 16327 mSDsluCounter, 16135 mSDsCounter, 0 mSdLazyCounter, 22171 mSolverCounterSat, 4811 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17462 SdHoareTripleChecker+Valid, 24747 SdHoareTripleChecker+Invalid, 26982 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4811 IncrementalHoareTripleChecker+Valid, 22171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.7s IncrementalHoareTripleChecker+Time [2021-12-06 19:06:13,718 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17462 Valid, 24747 Invalid, 26982 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4811 Valid, 22171 Invalid, 0 Unknown, 0 Unchecked, 26.7s Time] [2021-12-06 19:06:13,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21042 states. [2021-12-06 19:06:14,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21042 to 20642. [2021-12-06 19:06:14,387 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) [2021-12-06 19:06:14,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20642 states to 20642 states and 31010 transitions. [2021-12-06 19:06:14,485 INFO L78 Accepts]: Start accepts. Automaton has 20642 states and 31010 transitions. Word has length 1081 [2021-12-06 19:06:14,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:06:14,486 INFO L470 AbstractCegarLoop]: Abstraction has 20642 states and 31010 transitions. [2021-12-06 19:06:14,486 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) [2021-12-06 19:06:14,487 INFO L276 IsEmpty]: Start isEmpty. Operand 20642 states and 31010 transitions. [2021-12-06 19:06:14,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1095 [2021-12-06 19:06:14,586 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:06:14,586 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] [2021-12-06 19:06:14,644 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_700f116e-6fd6-4a0e-994b-fc6101dc3fce/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2021-12-06 19:06:14,787 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_700f116e-6fd6-4a0e-994b-fc6101dc3fce/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 19:06:14,787 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] === [2021-12-06 19:06:14,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:06:14,788 INFO L85 PathProgramCache]: Analyzing trace with hash -1042199844, now seen corresponding path program 1 times [2021-12-06 19:06:14,788 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:06:14,788 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009313042] [2021-12-06 19:06:14,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:06:14,789 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:06:15,128 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-06 19:06:15,129 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [350752695] [2021-12-06 19:06:15,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:06:15,129 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 19:06:15,129 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_700f116e-6fd6-4a0e-994b-fc6101dc3fce/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:06:15,130 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_700f116e-6fd6-4a0e-994b-fc6101dc3fce/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 19:06:15,130 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_700f116e-6fd6-4a0e-994b-fc6101dc3fce/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-12-06 19:06:17,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:06:17,933 INFO L263 TraceCheckSpWp]: Trace formula consists of 21980 conjuncts, 38 conjunts are in the unsatisfiable core [2021-12-06 19:06:17,957 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:06:18,783 INFO L134 CoverageAnalysis]: Checked inductivity of 4914 backedges. 323 proven. 0 refuted. 0 times theorem prover too weak. 4591 trivial. 0 not checked. [2021-12-06 19:06:18,783 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:06:18,783 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:06:18,783 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009313042] [2021-12-06 19:06:18,783 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-06 19:06:18,783 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [350752695] [2021-12-06 19:06:18,783 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [350752695] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:06:18,784 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:06:18,784 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-12-06 19:06:18,784 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027957231] [2021-12-06 19:06:18,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:06:18,785 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-12-06 19:06:18,785 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:06:18,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-12-06 19:06:18,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2021-12-06 19:06:18,786 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) [2021-12-06 19:06:19,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:06:19,956 INFO L93 Difference]: Finished difference Result 41292 states and 62032 transitions. [2021-12-06 19:06:19,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-12-06 19:06:19,957 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 [2021-12-06 19:06:19,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:06:20,040 INFO L225 Difference]: With dead ends: 41292 [2021-12-06 19:06:20,040 INFO L226 Difference]: Without dead ends: 20633 [2021-12-06 19:06:20,110 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1107 GetRequests, 1080 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=161, Invalid=651, Unknown=0, NotChecked=0, Total=812 [2021-12-06 19:06:20,110 INFO L933 BasicCegarLoop]: 6883 mSDtfsCounter, 51 mSDsluCounter, 89404 mSDsCounter, 0 mSdLazyCounter, 609 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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, 0.3s IncrementalHoareTripleChecker+Time [2021-12-06 19:06:20,110 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [52 Valid, 96287 Invalid, 661 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [52 Valid, 609 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-06 19:06:20,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20633 states. [2021-12-06 19:06:20,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20633 to 20633. [2021-12-06 19:06:20,783 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) [2021-12-06 19:06:20,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20633 states to 20633 states and 30998 transitions. [2021-12-06 19:06:20,875 INFO L78 Accepts]: Start accepts. Automaton has 20633 states and 30998 transitions. Word has length 1094 [2021-12-06 19:06:20,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:06:20,875 INFO L470 AbstractCegarLoop]: Abstraction has 20633 states and 30998 transitions. [2021-12-06 19:06:20,875 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) [2021-12-06 19:06:20,876 INFO L276 IsEmpty]: Start isEmpty. Operand 20633 states and 30998 transitions. [2021-12-06 19:06:20,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1088 [2021-12-06 19:06:20,971 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:06:20,972 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] [2021-12-06 19:06:21,030 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_700f116e-6fd6-4a0e-994b-fc6101dc3fce/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2021-12-06 19:06:21,172 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_700f116e-6fd6-4a0e-994b-fc6101dc3fce/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2021-12-06 19:06:21,174 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] === [2021-12-06 19:06:21,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:06:21,176 INFO L85 PathProgramCache]: Analyzing trace with hash -523067003, now seen corresponding path program 1 times [2021-12-06 19:06:21,176 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:06:21,177 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010016565] [2021-12-06 19:06:21,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:06:21,178 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:06:21,511 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-06 19:06:21,511 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2057559768] [2021-12-06 19:06:21,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:06:21,512 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 19:06:21,512 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_700f116e-6fd6-4a0e-994b-fc6101dc3fce/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:06:21,512 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_700f116e-6fd6-4a0e-994b-fc6101dc3fce/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 19:06:21,513 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_700f116e-6fd6-4a0e-994b-fc6101dc3fce/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-12-06 19:06:24,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:06:24,580 INFO L263 TraceCheckSpWp]: Trace formula consists of 21901 conjuncts, 20 conjunts are in the unsatisfiable core [2021-12-06 19:06:24,598 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:06:25,320 INFO L134 CoverageAnalysis]: Checked inductivity of 4899 backedges. 1484 proven. 0 refuted. 0 times theorem prover too weak. 3415 trivial. 0 not checked. [2021-12-06 19:06:25,320 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:06:25,321 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:06:25,321 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010016565] [2021-12-06 19:06:25,321 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-06 19:06:25,321 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2057559768] [2021-12-06 19:06:25,321 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2057559768] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:06:25,321 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:06:25,321 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-06 19:06:25,321 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843191108] [2021-12-06 19:06:25,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:06:25,322 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-06 19:06:25,322 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:06:25,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-06 19:06:25,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-06 19:06:25,323 INFO L87 Difference]: Start difference. First operand 20633 states and 30998 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) [2021-12-06 19:06:26,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:06:26,044 INFO L93 Difference]: Finished difference Result 41287 states and 65509 transitions. [2021-12-06 19:06:26,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-06 19:06:26,045 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 [2021-12-06 19:06:26,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:06:26,142 INFO L225 Difference]: With dead ends: 41287 [2021-12-06 19:06:26,142 INFO L226 Difference]: Without dead ends: 20681 [2021-12-06 19:06:26,283 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1087 GetRequests, 1078 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-12-06 19:06:26,284 INFO L933 BasicCegarLoop]: 6910 mSDtfsCounter, 2 mSDsluCounter, 55246 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 62156 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:06:26,284 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 62156 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 19:06:26,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20681 states. [2021-12-06 19:06:26,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20681 to 20681. [2021-12-06 19:06:26,881 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) [2021-12-06 19:06:26,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20681 states to 20681 states and 31546 transitions. [2021-12-06 19:06:26,980 INFO L78 Accepts]: Start accepts. Automaton has 20681 states and 31546 transitions. Word has length 1087 [2021-12-06 19:06:26,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:06:26,981 INFO L470 AbstractCegarLoop]: Abstraction has 20681 states and 31546 transitions. [2021-12-06 19:06:26,981 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) [2021-12-06 19:06:26,981 INFO L276 IsEmpty]: Start isEmpty. Operand 20681 states and 31546 transitions. [2021-12-06 19:06:27,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1099 [2021-12-06 19:06:27,119 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:06:27,120 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] [2021-12-06 19:06:27,178 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_700f116e-6fd6-4a0e-994b-fc6101dc3fce/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-12-06 19:06:27,320 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_700f116e-6fd6-4a0e-994b-fc6101dc3fce/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 19:06:27,322 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] === [2021-12-06 19:06:27,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:06:27,324 INFO L85 PathProgramCache]: Analyzing trace with hash -1760884857, now seen corresponding path program 1 times [2021-12-06 19:06:27,324 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:06:27,325 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978882906] [2021-12-06 19:06:27,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:06:27,326 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:06:27,677 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-06 19:06:27,677 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [981433434] [2021-12-06 19:06:27,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:06:27,677 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 19:06:27,677 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_700f116e-6fd6-4a0e-994b-fc6101dc3fce/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:06:27,678 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_700f116e-6fd6-4a0e-994b-fc6101dc3fce/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 19:06:27,679 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_700f116e-6fd6-4a0e-994b-fc6101dc3fce/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-12-06 19:06:30,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:06:30,645 INFO L263 TraceCheckSpWp]: Trace formula consists of 22022 conjuncts, 20 conjunts are in the unsatisfiable core [2021-12-06 19:06:30,664 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:06:31,450 INFO L134 CoverageAnalysis]: Checked inductivity of 4914 backedges. 1484 proven. 0 refuted. 0 times theorem prover too weak. 3430 trivial. 0 not checked. [2021-12-06 19:06:31,450 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:06:31,451 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:06:31,451 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978882906] [2021-12-06 19:06:31,451 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-06 19:06:31,451 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [981433434] [2021-12-06 19:06:31,451 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [981433434] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:06:31,451 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:06:31,451 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-06 19:06:31,451 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761025445] [2021-12-06 19:06:31,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:06:31,452 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-06 19:06:31,452 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:06:31,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-06 19:06:31,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-06 19:06:31,453 INFO L87 Difference]: Start difference. First operand 20681 states and 31546 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) [2021-12-06 19:06:32,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:06:32,212 INFO L93 Difference]: Finished difference Result 41375 states and 67097 transitions. [2021-12-06 19:06:32,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-06 19:06:32,213 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 [2021-12-06 19:06:32,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:06:32,282 INFO L225 Difference]: With dead ends: 41375 [2021-12-06 19:06:32,283 INFO L226 Difference]: Without dead ends: 20721 [2021-12-06 19:06:32,350 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1098 GetRequests, 1089 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-12-06 19:06:32,351 INFO L933 BasicCegarLoop]: 6932 mSDtfsCounter, 1 mSDsluCounter, 55418 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 62350 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:06:32,351 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 62350 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 19:06:32,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20721 states. [2021-12-06 19:06:32,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20721 to 20681. [2021-12-06 19:06:32,994 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) [2021-12-06 19:06:33,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20681 states to 20681 states and 31546 transitions. [2021-12-06 19:06:33,085 INFO L78 Accepts]: Start accepts. Automaton has 20681 states and 31546 transitions. Word has length 1098 [2021-12-06 19:06:33,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:06:33,086 INFO L470 AbstractCegarLoop]: Abstraction has 20681 states and 31546 transitions. [2021-12-06 19:06:33,086 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) [2021-12-06 19:06:33,086 INFO L276 IsEmpty]: Start isEmpty. Operand 20681 states and 31546 transitions. [2021-12-06 19:06:33,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1088 [2021-12-06 19:06:33,180 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:06:33,181 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] [2021-12-06 19:06:33,240 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_700f116e-6fd6-4a0e-994b-fc6101dc3fce/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2021-12-06 19:06:33,381 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_700f116e-6fd6-4a0e-994b-fc6101dc3fce/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-12-06 19:06:33,383 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] === [2021-12-06 19:06:33,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:06:33,385 INFO L85 PathProgramCache]: Analyzing trace with hash -1494791867, now seen corresponding path program 1 times [2021-12-06 19:06:33,386 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:06:33,386 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088363948] [2021-12-06 19:06:33,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:06:33,387 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:06:33,718 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-06 19:06:33,718 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [659570534] [2021-12-06 19:06:33,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:06:33,719 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 19:06:33,719 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_700f116e-6fd6-4a0e-994b-fc6101dc3fce/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:06:33,719 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_700f116e-6fd6-4a0e-994b-fc6101dc3fce/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 19:06:33,720 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_700f116e-6fd6-4a0e-994b-fc6101dc3fce/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-12-06 19:06:37,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:06:38,043 INFO L263 TraceCheckSpWp]: Trace formula consists of 21886 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-06 19:06:38,060 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:06:38,791 INFO L134 CoverageAnalysis]: Checked inductivity of 4899 backedges. 1526 proven. 0 refuted. 0 times theorem prover too weak. 3373 trivial. 0 not checked. [2021-12-06 19:06:38,792 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:06:38,792 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:06:38,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088363948] [2021-12-06 19:06:38,792 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-06 19:06:38,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [659570534] [2021-12-06 19:06:38,792 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [659570534] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:06:38,792 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:06:38,792 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 19:06:38,793 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912472903] [2021-12-06 19:06:38,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:06:38,793 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 19:06:38,794 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:06:38,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 19:06:38,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 19:06:38,794 INFO L87 Difference]: Start difference. First operand 20681 states and 31546 transitions. Second operand has 3 states, 3 states have (on average 140.66666666666666) internal successors, (422), 3 states have internal predecessors, (422), 2 states have call successors, (121), 2 states have call predecessors, (121), 2 states have return successors, (119), 2 states have call predecessors, (119), 2 states have call successors, (119) [2021-12-06 19:06:39,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:06:39,449 INFO L93 Difference]: Finished difference Result 41359 states and 66589 transitions. [2021-12-06 19:06:39,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 19:06:39,450 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 140.66666666666666) internal successors, (422), 3 states have internal predecessors, (422), 2 states have call successors, (121), 2 states have call predecessors, (121), 2 states have return successors, (119), 2 states have call predecessors, (119), 2 states have call successors, (119) Word has length 1087 [2021-12-06 19:06:39,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:06:39,546 INFO L225 Difference]: With dead ends: 41359 [2021-12-06 19:06:39,546 INFO L226 Difference]: Without dead ends: 20705 [2021-12-06 19:06:39,631 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1086 GetRequests, 1085 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 19:06:39,631 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 [2021-12-06 19:06:39,631 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] [2021-12-06 19:06:39,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20705 states. [2021-12-06 19:06:40,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20705 to 20685. [2021-12-06 19:06:40,271 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) [2021-12-06 19:06:40,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20685 states to 20685 states and 31550 transitions. [2021-12-06 19:06:40,365 INFO L78 Accepts]: Start accepts. Automaton has 20685 states and 31550 transitions. Word has length 1087 [2021-12-06 19:06:40,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:06:40,366 INFO L470 AbstractCegarLoop]: Abstraction has 20685 states and 31550 transitions. [2021-12-06 19:06:40,366 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 140.66666666666666) internal successors, (422), 3 states have internal predecessors, (422), 2 states have call successors, (121), 2 states have call predecessors, (121), 2 states have return successors, (119), 2 states have call predecessors, (119), 2 states have call successors, (119) [2021-12-06 19:06:40,366 INFO L276 IsEmpty]: Start isEmpty. Operand 20685 states and 31550 transitions. [2021-12-06 19:06:40,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1157 [2021-12-06 19:06:40,462 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:06:40,463 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, 5, 5, 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] [2021-12-06 19:06:40,526 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_700f116e-6fd6-4a0e-994b-fc6101dc3fce/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-12-06 19:06:40,663 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_700f116e-6fd6-4a0e-994b-fc6101dc3fce/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-12-06 19:06:40,665 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] === [2021-12-06 19:06:40,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:06:40,667 INFO L85 PathProgramCache]: Analyzing trace with hash 25755173, now seen corresponding path program 1 times [2021-12-06 19:06:40,667 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:06:40,667 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544487854] [2021-12-06 19:06:40,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:06:40,668 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:06:40,978 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-06 19:06:40,978 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [915304011] [2021-12-06 19:06:40,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:06:40,978 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 19:06:40,979 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_700f116e-6fd6-4a0e-994b-fc6101dc3fce/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:06:40,979 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_700f116e-6fd6-4a0e-994b-fc6101dc3fce/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 19:06:40,980 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_700f116e-6fd6-4a0e-994b-fc6101dc3fce/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-12-06 19:06:43,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:06:43,887 INFO L263 TraceCheckSpWp]: Trace formula consists of 22080 conjuncts, 23 conjunts are in the unsatisfiable core [2021-12-06 19:06:43,904 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:06:44,698 INFO L134 CoverageAnalysis]: Checked inductivity of 5099 backedges. 1622 proven. 0 refuted. 0 times theorem prover too weak. 3477 trivial. 0 not checked. [2021-12-06 19:06:44,699 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:06:44,699 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:06:44,699 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544487854] [2021-12-06 19:06:44,699 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-06 19:06:44,699 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [915304011] [2021-12-06 19:06:44,699 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [915304011] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:06:44,699 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:06:44,700 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 19:06:44,700 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065188446] [2021-12-06 19:06:44,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:06:44,701 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-06 19:06:44,701 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:06:44,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-06 19:06:44,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-12-06 19:06:44,702 INFO L87 Difference]: Start difference. First operand 20685 states and 31550 transitions. Second operand has 8 states, 7 states have (on average 62.714285714285715) internal successors, (439), 6 states have internal predecessors, (439), 3 states have call successors, (132), 2 states have call predecessors, (132), 3 states have return successors, (130), 4 states have call predecessors, (130), 3 states have call successors, (130) [2021-12-06 19:06:46,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:06:46,119 INFO L93 Difference]: Finished difference Result 41383 states and 66637 transitions. [2021-12-06 19:06:46,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-06 19:06:46,120 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 62.714285714285715) internal successors, (439), 6 states have internal predecessors, (439), 3 states have call successors, (132), 2 states have call predecessors, (132), 3 states have return successors, (130), 4 states have call predecessors, (130), 3 states have call successors, (130) Word has length 1156 [2021-12-06 19:06:46,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:06:46,210 INFO L225 Difference]: With dead ends: 41383 [2021-12-06 19:06:46,210 INFO L226 Difference]: Without dead ends: 20725 [2021-12-06 19:06:46,303 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1159 GetRequests, 1149 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2021-12-06 19:06:46,304 INFO L933 BasicCegarLoop]: 6781 mSDtfsCounter, 14 mSDsluCounter, 40521 mSDsCounter, 0 mSdLazyCounter, 1119 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 47302 SdHoareTripleChecker+Invalid, 1129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-06 19:06:46,304 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16 Valid, 47302 Invalid, 1129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1119 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-06 19:06:46,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20725 states. [2021-12-06 19:06:47,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20725 to 20697. [2021-12-06 19:06:47,061 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) [2021-12-06 19:06:47,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20697 states to 20697 states and 31566 transitions. [2021-12-06 19:06:47,182 INFO L78 Accepts]: Start accepts. Automaton has 20697 states and 31566 transitions. Word has length 1156 [2021-12-06 19:06:47,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:06:47,183 INFO L470 AbstractCegarLoop]: Abstraction has 20697 states and 31566 transitions. [2021-12-06 19:06:47,183 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 62.714285714285715) internal successors, (439), 6 states have internal predecessors, (439), 3 states have call successors, (132), 2 states have call predecessors, (132), 3 states have return successors, (130), 4 states have call predecessors, (130), 3 states have call successors, (130) [2021-12-06 19:06:47,183 INFO L276 IsEmpty]: Start isEmpty. Operand 20697 states and 31566 transitions. [2021-12-06 19:06:47,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1161 [2021-12-06 19:06:47,287 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:06:47,287 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, 5, 5, 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] [2021-12-06 19:06:47,350 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_700f116e-6fd6-4a0e-994b-fc6101dc3fce/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-12-06 19:06:47,488 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_700f116e-6fd6-4a0e-994b-fc6101dc3fce/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-12-06 19:06:47,489 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] === [2021-12-06 19:06:47,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:06:47,491 INFO L85 PathProgramCache]: Analyzing trace with hash -875994814, now seen corresponding path program 1 times [2021-12-06 19:06:47,492 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:06:47,492 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644367844] [2021-12-06 19:06:47,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:06:47,493 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:06:47,821 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-06 19:06:47,821 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1424166689] [2021-12-06 19:06:47,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:06:47,822 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 19:06:47,822 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_700f116e-6fd6-4a0e-994b-fc6101dc3fce/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:06:47,822 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_700f116e-6fd6-4a0e-994b-fc6101dc3fce/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 19:06:47,825 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_700f116e-6fd6-4a0e-994b-fc6101dc3fce/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-12-06 19:06:50,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:06:50,632 INFO L263 TraceCheckSpWp]: Trace formula consists of 22095 conjuncts, 18 conjunts are in the unsatisfiable core [2021-12-06 19:06:50,650 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:06:51,480 INFO L134 CoverageAnalysis]: Checked inductivity of 5099 backedges. 1644 proven. 0 refuted. 0 times theorem prover too weak. 3455 trivial. 0 not checked. [2021-12-06 19:06:51,480 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:06:51,480 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:06:51,480 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644367844] [2021-12-06 19:06:51,480 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-06 19:06:51,480 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1424166689] [2021-12-06 19:06:51,480 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1424166689] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:06:51,481 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:06:51,481 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-06 19:06:51,481 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450910808] [2021-12-06 19:06:51,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:06:51,482 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-06 19:06:51,482 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:06:51,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-06 19:06:51,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2021-12-06 19:06:51,483 INFO L87 Difference]: Start difference. First operand 20697 states and 31566 transitions. Second operand has 12 states, 12 states have (on average 36.583333333333336) internal successors, (439), 9 states have internal predecessors, (439), 4 states have call successors, (133), 2 states have call predecessors, (133), 5 states have return successors, (131), 7 states have call predecessors, (131), 4 states have call successors, (131) [2021-12-06 19:06:53,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:06:53,167 INFO L93 Difference]: Finished difference Result 41607 states and 67071 transitions. [2021-12-06 19:06:53,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-06 19:06:53,168 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 36.583333333333336) internal successors, (439), 9 states have internal predecessors, (439), 4 states have call successors, (133), 2 states have call predecessors, (133), 5 states have return successors, (131), 7 states have call predecessors, (131), 4 states have call successors, (131) Word has length 1160 [2021-12-06 19:06:53,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:06:53,247 INFO L225 Difference]: With dead ends: 41607 [2021-12-06 19:06:53,247 INFO L226 Difference]: Without dead ends: 20937 [2021-12-06 19:06:53,324 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1163 GetRequests, 1149 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2021-12-06 19:06:53,325 INFO L933 BasicCegarLoop]: 6787 mSDtfsCounter, 31 mSDsluCounter, 67686 mSDsCounter, 0 mSdLazyCounter, 1767 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 74473 SdHoareTripleChecker+Invalid, 1769 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1767 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-06 19:06:53,325 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 74473 Invalid, 1769 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 1767 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-06 19:06:53,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20937 states. [2021-12-06 19:06:53,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20937 to 20865. [2021-12-06 19:06:53,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20865 states, 14323 states have (on average 1.2864623333100607) internal successors, (18426), 14785 states have internal predecessors, (18426), 5225 states have call successors, (5225), 1128 states have call predecessors, (5225), 1316 states have return successors, (8183), 5139 states have call predecessors, (8183), 5223 states have call successors, (8183) [2021-12-06 19:06:54,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20865 states to 20865 states and 31834 transitions. [2021-12-06 19:06:54,070 INFO L78 Accepts]: Start accepts. Automaton has 20865 states and 31834 transitions. Word has length 1160 [2021-12-06 19:06:54,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:06:54,071 INFO L470 AbstractCegarLoop]: Abstraction has 20865 states and 31834 transitions. [2021-12-06 19:06:54,071 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 36.583333333333336) internal successors, (439), 9 states have internal predecessors, (439), 4 states have call successors, (133), 2 states have call predecessors, (133), 5 states have return successors, (131), 7 states have call predecessors, (131), 4 states have call successors, (131) [2021-12-06 19:06:54,071 INFO L276 IsEmpty]: Start isEmpty. Operand 20865 states and 31834 transitions. [2021-12-06 19:06:54,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1161 [2021-12-06 19:06:54,168 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:06:54,169 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, 5, 5, 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] [2021-12-06 19:06:54,230 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_700f116e-6fd6-4a0e-994b-fc6101dc3fce/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2021-12-06 19:06:54,370 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_700f116e-6fd6-4a0e-994b-fc6101dc3fce/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 19:06:54,371 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] === [2021-12-06 19:06:54,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:06:54,373 INFO L85 PathProgramCache]: Analyzing trace with hash 10887800, now seen corresponding path program 1 times [2021-12-06 19:06:54,374 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:06:54,374 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135847135] [2021-12-06 19:06:54,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:06:54,375 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:06:54,678 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-06 19:06:54,678 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1326536854] [2021-12-06 19:06:54,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:06:54,679 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 19:06:54,679 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_700f116e-6fd6-4a0e-994b-fc6101dc3fce/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:06:54,679 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_700f116e-6fd6-4a0e-994b-fc6101dc3fce/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 19:06:54,680 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_700f116e-6fd6-4a0e-994b-fc6101dc3fce/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-12-06 19:07:08,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:07:09,053 INFO L263 TraceCheckSpWp]: Trace formula consists of 22101 conjuncts, 19 conjunts are in the unsatisfiable core [2021-12-06 19:07:09,071 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:07:09,927 INFO L134 CoverageAnalysis]: Checked inductivity of 5099 backedges. 1640 proven. 2 refuted. 0 times theorem prover too weak. 3457 trivial. 0 not checked. [2021-12-06 19:07:09,928 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 19:07:12,021 INFO L134 CoverageAnalysis]: Checked inductivity of 5099 backedges. 9 proven. 42 refuted. 0 times theorem prover too weak. 5048 trivial. 0 not checked. [2021-12-06 19:07:12,022 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:07:12,022 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135847135] [2021-12-06 19:07:12,022 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-06 19:07:12,022 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1326536854] [2021-12-06 19:07:12,022 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1326536854] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 19:07:12,022 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-06 19:07:12,023 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 18 [2021-12-06 19:07:12,023 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980356232] [2021-12-06 19:07:12,023 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-06 19:07:12,025 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-12-06 19:07:12,025 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:07:12,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-12-06 19:07:12,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2021-12-06 19:07:12,025 INFO L87 Difference]: Start difference. First operand 20865 states and 31834 transitions. Second operand has 18 states, 16 states have (on average 45.5625) internal successors, (729), 16 states have internal predecessors, (729), 9 states have call successors, (224), 2 states have call predecessors, (224), 6 states have return successors, (222), 8 states have call predecessors, (222), 9 states have call successors, (222) [2021-12-06 19:07:14,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:07:14,484 INFO L93 Difference]: Finished difference Result 39509 states and 59565 transitions. [2021-12-06 19:07:14,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-06 19:07:14,485 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 16 states have (on average 45.5625) internal successors, (729), 16 states have internal predecessors, (729), 9 states have call successors, (224), 2 states have call predecessors, (224), 6 states have return successors, (222), 8 states have call predecessors, (222), 9 states have call successors, (222) Word has length 1160 [2021-12-06 19:07:14,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:07:14,583 INFO L225 Difference]: With dead ends: 39509 [2021-12-06 19:07:14,583 INFO L226 Difference]: Without dead ends: 20989 [2021-12-06 19:07:14,662 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2325 GetRequests, 2303 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=86, Invalid=420, Unknown=0, NotChecked=0, Total=506 [2021-12-06 19:07:14,663 INFO L933 BasicCegarLoop]: 6782 mSDtfsCounter, 59 mSDsluCounter, 87783 mSDsCounter, 0 mSdLazyCounter, 2511 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 94565 SdHoareTripleChecker+Invalid, 2525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 2511 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-12-06 19:07:14,663 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [68 Valid, 94565 Invalid, 2525 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [14 Valid, 2511 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-12-06 19:07:14,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20989 states. [2021-12-06 19:07:15,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20989 to 20917. [2021-12-06 19:07:15,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20917 states, 14355 states have (on average 1.2863810518982932) internal successors, (18466), 14825 states have internal predecessors, (18466), 5237 states have call successors, (5237), 1128 states have call predecessors, (5237), 1324 states have return successors, (8215), 5151 states have call predecessors, (8215), 5235 states have call successors, (8215) [2021-12-06 19:07:15,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20917 states to 20917 states and 31918 transitions. [2021-12-06 19:07:15,487 INFO L78 Accepts]: Start accepts. Automaton has 20917 states and 31918 transitions. Word has length 1160 [2021-12-06 19:07:15,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:07:15,487 INFO L470 AbstractCegarLoop]: Abstraction has 20917 states and 31918 transitions. [2021-12-06 19:07:15,487 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 16 states have (on average 45.5625) internal successors, (729), 16 states have internal predecessors, (729), 9 states have call successors, (224), 2 states have call predecessors, (224), 6 states have return successors, (222), 8 states have call predecessors, (222), 9 states have call successors, (222) [2021-12-06 19:07:15,488 INFO L276 IsEmpty]: Start isEmpty. Operand 20917 states and 31918 transitions. [2021-12-06 19:07:15,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1161 [2021-12-06 19:07:15,581 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:07:15,582 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, 5, 5, 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] [2021-12-06 19:07:15,659 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_700f116e-6fd6-4a0e-994b-fc6101dc3fce/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2021-12-06 19:07:15,782 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_700f116e-6fd6-4a0e-994b-fc6101dc3fce/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 19:07:15,784 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:07:15,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:07:15,787 INFO L85 PathProgramCache]: Analyzing trace with hash 144750266, now seen corresponding path program 1 times [2021-12-06 19:07:15,788 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:07:15,788 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834068133] [2021-12-06 19:07:15,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:07:15,789 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:07:16,124 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-06 19:07:16,124 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1270314296] [2021-12-06 19:07:16,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:07:16,124 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 19:07:16,124 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_700f116e-6fd6-4a0e-994b-fc6101dc3fce/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:07:16,125 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_700f116e-6fd6-4a0e-994b-fc6101dc3fce/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 19:07:16,126 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_700f116e-6fd6-4a0e-994b-fc6101dc3fce/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process