./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-nvidia-forcedeth.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44cb85f2-0f1a-4302-9116-6a325a635ccf/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44cb85f2-0f1a-4302-9116-6a325a635ccf/bin/utaipan-TEXQjIfE4P/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44cb85f2-0f1a-4302-9116-6a325a635ccf/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44cb85f2-0f1a-4302-9116-6a325a635ccf/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-drivers-clk1_drivers-net-ethernet-nvidia-forcedeth.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44cb85f2-0f1a-4302-9116-6a325a635ccf/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44cb85f2-0f1a-4302-9116-6a325a635ccf/bin/utaipan-TEXQjIfE4P --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 55cf09ea68be24a0d5f8c9dde4ef5a1b06b863f1db24b654d3cf43a34972c685 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 01:42:07,752 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 01:42:07,755 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 01:42:07,797 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 01:42:07,803 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 01:42:07,805 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 01:42:07,807 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 01:42:07,810 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 01:42:07,813 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 01:42:07,814 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 01:42:07,820 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 01:42:07,824 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 01:42:07,825 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 01:42:07,835 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 01:42:07,838 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 01:42:07,845 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 01:42:07,847 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 01:42:07,850 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 01:42:07,852 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 01:42:07,856 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 01:42:07,858 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 01:42:07,860 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 01:42:07,862 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 01:42:07,863 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 01:42:07,867 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 01:42:07,868 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 01:42:07,868 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 01:42:07,870 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 01:42:07,871 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 01:42:07,876 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 01:42:07,877 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 01:42:07,878 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 01:42:07,879 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 01:42:07,880 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 01:42:07,882 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 01:42:07,882 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 01:42:07,883 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 01:42:07,884 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 01:42:07,884 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 01:42:07,886 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 01:42:07,887 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 01:42:07,891 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44cb85f2-0f1a-4302-9116-6a325a635ccf/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-21 01:42:07,938 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 01:42:07,941 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 01:42:07,942 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-21 01:42:07,943 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-21 01:42:07,944 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 01:42:07,944 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-21 01:42:07,945 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-21 01:42:07,945 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-21 01:42:07,945 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-21 01:42:07,946 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-21 01:42:07,947 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-21 01:42:07,947 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-21 01:42:07,948 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-21 01:42:07,948 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-21 01:42:07,948 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-21 01:42:07,949 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-21 01:42:07,949 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-21 01:42:07,949 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-21 01:42:07,951 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 01:42:07,951 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-21 01:42:07,951 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 01:42:07,952 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-21 01:42:07,952 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 01:42:07,952 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-21 01:42:07,953 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-21 01:42:07,953 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 01:42:07,955 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-21 01:42:07,956 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 01:42:07,956 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-21 01:42:07,957 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:42:07,957 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 01:42:07,957 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 01:42:07,958 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-21 01:42:07,958 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-21 01:42:07,958 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-21 01:42:07,959 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-21 01:42:07,959 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-21 01:42:07,959 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-21 01:42:07,959 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44cb85f2-0f1a-4302-9116-6a325a635ccf/bin/utaipan-TEXQjIfE4P/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44cb85f2-0f1a-4302-9116-6a325a635ccf/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 55cf09ea68be24a0d5f8c9dde4ef5a1b06b863f1db24b654d3cf43a34972c685 [2021-11-21 01:42:08,320 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 01:42:08,345 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 01:42:08,348 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 01:42:08,350 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 01:42:08,351 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 01:42:08,353 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44cb85f2-0f1a-4302-9116-6a325a635ccf/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-drivers-clk1_drivers-net-ethernet-nvidia-forcedeth.cil.i [2021-11-21 01:42:08,462 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44cb85f2-0f1a-4302-9116-6a325a635ccf/bin/utaipan-TEXQjIfE4P/data/e90bdf964/7d44f15cd676491ba2e0b588d881d2a6/FLAG4b11b3af0 [2021-11-21 01:42:09,876 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 01:42:09,876 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44cb85f2-0f1a-4302-9116-6a325a635ccf/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-drivers-clk1_drivers-net-ethernet-nvidia-forcedeth.cil.i [2021-11-21 01:42:09,942 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44cb85f2-0f1a-4302-9116-6a325a635ccf/bin/utaipan-TEXQjIfE4P/data/e90bdf964/7d44f15cd676491ba2e0b588d881d2a6/FLAG4b11b3af0 [2021-11-21 01:42:10,434 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44cb85f2-0f1a-4302-9116-6a325a635ccf/bin/utaipan-TEXQjIfE4P/data/e90bdf964/7d44f15cd676491ba2e0b588d881d2a6 [2021-11-21 01:42:10,436 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 01:42:10,438 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 01:42:10,439 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 01:42:10,440 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 01:42:10,456 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 01:42:10,457 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:42:10" (1/1) ... [2021-11-21 01:42:10,458 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c59b093 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:42:10, skipping insertion in model container [2021-11-21 01:42:10,458 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:42:10" (1/1) ... [2021-11-21 01:42:10,465 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 01:42:10,672 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 01:42:15,561 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_44cb85f2-0f1a-4302-9116-6a325a635ccf/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-drivers-clk1_drivers-net-ethernet-nvidia-forcedeth.cil.i[530939,530952] [2021-11-21 01:42:15,605 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:42:15,714 INFO L203 MainTranslator]: Completed pre-run [2021-11-21 01:42:16,363 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_44cb85f2-0f1a-4302-9116-6a325a635ccf/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-drivers-clk1_drivers-net-ethernet-nvidia-forcedeth.cil.i[530939,530952] [2021-11-21 01:42:16,418 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:42:16,852 INFO L208 MainTranslator]: Completed translation [2021-11-21 01:42:16,853 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:42:16 WrapperNode [2021-11-21 01:42:16,853 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 01:42:16,854 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-21 01:42:16,854 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-21 01:42:16,854 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-21 01:42:16,862 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:42:16" (1/1) ... [2021-11-21 01:42:17,050 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:42:16" (1/1) ... [2021-11-21 01:42:17,431 INFO L137 Inliner]: procedures = 564, calls = 5856, calls flagged for inlining = 283, calls inlined = 275, statements flattened = 11973 [2021-11-21 01:42:17,432 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-21 01:42:17,433 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-21 01:42:17,433 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-21 01:42:17,433 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-21 01:42:17,442 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:42:16" (1/1) ... [2021-11-21 01:42:17,443 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:42:16" (1/1) ... [2021-11-21 01:42:17,505 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:42:16" (1/1) ... [2021-11-21 01:42:17,506 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:42:16" (1/1) ... [2021-11-21 01:42:18,125 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:42:16" (1/1) ... [2021-11-21 01:42:18,175 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:42:16" (1/1) ... [2021-11-21 01:42:18,227 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:42:16" (1/1) ... [2021-11-21 01:42:18,313 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-21 01:42:18,314 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-21 01:42:18,315 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-21 01:42:18,315 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-21 01:42:18,328 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:42:16" (1/1) ... [2021-11-21 01:42:18,336 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:42:18,346 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44cb85f2-0f1a-4302-9116-6a325a635ccf/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:42:18,358 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44cb85f2-0f1a-4302-9116-6a325a635ccf/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-21 01:42:18,411 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44cb85f2-0f1a-4302-9116-6a325a635ccf/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-21 01:42:18,492 INFO L130 BoogieDeclarations]: Found specification of procedure init_realtek_8211b [2021-11-21 01:42:18,492 INFO L138 BoogieDeclarations]: Found implementation of procedure init_realtek_8211b [2021-11-21 01:42:18,492 INFO L130 BoogieDeclarations]: Found specification of procedure nv_nway_reset [2021-11-21 01:42:18,492 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_nway_reset [2021-11-21 01:42:18,493 INFO L130 BoogieDeclarations]: Found specification of procedure device_set_wakeup_enable [2021-11-21 01:42:18,493 INFO L138 BoogieDeclarations]: Found implementation of procedure device_set_wakeup_enable [2021-11-21 01:42:18,493 INFO L130 BoogieDeclarations]: Found specification of procedure nv_drain_rxtx [2021-11-21 01:42:18,493 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_drain_rxtx [2021-11-21 01:42:18,493 INFO L130 BoogieDeclarations]: Found specification of procedure nv_start_tx [2021-11-21 01:42:18,493 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_start_tx [2021-11-21 01:42:18,494 INFO L130 BoogieDeclarations]: Found specification of procedure netif_addr_lock [2021-11-21 01:42:18,494 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_addr_lock [2021-11-21 01:42:18,494 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-11-21 01:42:18,494 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-11-21 01:42:18,494 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-21 01:42:18,494 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-21 01:42:18,494 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2021-11-21 01:42:18,495 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2021-11-21 01:42:18,495 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-21 01:42:18,495 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-21 01:42:18,495 INFO L130 BoogieDeclarations]: Found specification of procedure nv_set_multicast [2021-11-21 01:42:18,495 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_set_multicast [2021-11-21 01:42:18,495 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-21 01:42:18,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-21 01:42:18,496 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_instance_callback_7_2 [2021-11-21 01:42:18,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_instance_callback_7_2 [2021-11-21 01:42:18,496 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-11-21 01:42:18,496 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-11-21 01:42:18,496 INFO L130 BoogieDeclarations]: Found specification of procedure nv_msi_workaround [2021-11-21 01:42:18,496 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_msi_workaround [2021-11-21 01:42:18,496 INFO L130 BoogieDeclarations]: Found specification of procedure nv_get_empty_tx_slots [2021-11-21 01:42:18,497 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_get_empty_tx_slots [2021-11-21 01:42:18,497 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2021-11-21 01:42:18,497 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2021-11-21 01:42:18,497 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-21 01:42:18,497 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-21 01:42:18,497 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2021-11-21 01:42:18,497 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2021-11-21 01:42:18,498 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-11-21 01:42:18,498 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-11-21 01:42:18,498 INFO L130 BoogieDeclarations]: Found specification of procedure nv_close [2021-11-21 01:42:18,498 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_close [2021-11-21 01:42:18,498 INFO L130 BoogieDeclarations]: Found specification of procedure dma_high [2021-11-21 01:42:18,498 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_high [2021-11-21 01:42:18,499 INFO L130 BoogieDeclarations]: Found specification of procedure nv_enable_hw_interrupts [2021-11-21 01:42:18,499 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_enable_hw_interrupts [2021-11-21 01:42:18,499 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2021-11-21 01:42:18,499 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2021-11-21 01:42:18,499 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_timer_instance_7 [2021-11-21 01:42:18,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_timer_instance_7 [2021-11-21 01:42:18,499 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-21 01:42:18,500 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-21 01:42:18,500 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_29 [2021-11-21 01:42:18,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_29 [2021-11-21 01:42:18,500 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_28 [2021-11-21 01:42:18,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_28 [2021-11-21 01:42:18,500 INFO L130 BoogieDeclarations]: Found specification of procedure nv_start_rxtx [2021-11-21 01:42:18,500 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_start_rxtx [2021-11-21 01:42:18,500 INFO L130 BoogieDeclarations]: Found specification of procedure nv_vlan_mode [2021-11-21 01:42:18,501 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_vlan_mode [2021-11-21 01:42:18,501 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-21 01:42:18,501 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-21 01:42:18,501 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-21 01:42:18,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-21 01:42:18,501 INFO L130 BoogieDeclarations]: Found specification of procedure init_realtek_8201 [2021-11-21 01:42:18,501 INFO L138 BoogieDeclarations]: Found implementation of procedure init_realtek_8201 [2021-11-21 01:42:18,502 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-21 01:42:18,502 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-21 01:42:18,502 INFO L130 BoogieDeclarations]: Found specification of procedure reg_delay [2021-11-21 01:42:18,502 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_delay [2021-11-21 01:42:18,502 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2021-11-21 01:42:18,502 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2021-11-21 01:42:18,502 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_17 [2021-11-21 01:42:18,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_17 [2021-11-21 01:42:18,503 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_16 [2021-11-21 01:42:18,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_16 [2021-11-21 01:42:18,516 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_15 [2021-11-21 01:42:18,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_15 [2021-11-21 01:42:18,516 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-21 01:42:18,516 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-21 01:42:18,516 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_14 [2021-11-21 01:42:18,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_14 [2021-11-21 01:42:18,517 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-21 01:42:18,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-21 01:42:18,517 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_11 [2021-11-21 01:42:18,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_11 [2021-11-21 01:42:18,517 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-11-21 01:42:18,517 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-11-21 01:42:18,517 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-11-21 01:42:18,518 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-11-21 01:42:18,518 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tailroom [2021-11-21 01:42:18,518 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tailroom [2021-11-21 01:42:18,518 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-21 01:42:18,518 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-11-21 01:42:18,518 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-11-21 01:42:18,518 INFO L130 BoogieDeclarations]: Found specification of procedure pci_push [2021-11-21 01:42:18,519 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_push [2021-11-21 01:42:18,519 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tx_timestamp [2021-11-21 01:42:18,519 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tx_timestamp [2021-11-21 01:42:18,519 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync [2021-11-21 01:42:18,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync [2021-11-21 01:42:18,519 INFO L130 BoogieDeclarations]: Found specification of procedure netif_schedule_queue [2021-11-21 01:42:18,519 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_schedule_queue [2021-11-21 01:42:18,520 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-11-21 01:42:18,520 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-11-21 01:42:18,520 INFO L130 BoogieDeclarations]: Found specification of procedure nv_do_stats_poll [2021-11-21 01:42:18,520 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_do_stats_poll [2021-11-21 01:42:18,520 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-21 01:42:18,520 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-21 01:42:18,520 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-11-21 01:42:18,521 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-11-21 01:42:18,521 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2021-11-21 01:42:18,521 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2021-11-21 01:42:18,521 INFO L130 BoogieDeclarations]: Found specification of procedure nv_alloc_rx_optimized [2021-11-21 01:42:18,521 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_alloc_rx_optimized [2021-11-21 01:42:18,521 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-21 01:42:18,521 INFO L130 BoogieDeclarations]: Found specification of procedure __napi_schedule [2021-11-21 01:42:18,521 INFO L138 BoogieDeclarations]: Found implementation of procedure __napi_schedule [2021-11-21 01:42:18,522 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-21 01:42:18,522 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-21 01:42:18,522 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-11-21 01:42:18,522 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-11-21 01:42:18,522 INFO L130 BoogieDeclarations]: Found specification of procedure enable_irq_lockdep [2021-11-21 01:42:18,522 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_irq_lockdep [2021-11-21 01:42:18,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-21 01:42:18,523 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-21 01:42:18,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-21 01:42:18,523 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-21 01:42:18,523 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-21 01:42:18,523 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-21 01:42:18,523 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-21 01:42:18,523 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-21 01:42:18,523 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-21 01:42:18,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-21 01:42:18,524 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-21 01:42:18,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-21 01:42:18,524 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-21 01:42:18,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-21 01:42:18,524 INFO L130 BoogieDeclarations]: Found specification of procedure nv_drain_tx [2021-11-21 01:42:18,524 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_drain_tx [2021-11-21 01:42:18,524 INFO L130 BoogieDeclarations]: Found specification of procedure nv_update_stats [2021-11-21 01:42:18,525 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_update_stats [2021-11-21 01:42:18,525 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_interrupt_interrupt_instance_1 [2021-11-21 01:42:18,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_interrupt_interrupt_instance_1 [2021-11-21 01:42:18,525 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_interrupt_interrupt_instance_2 [2021-11-21 01:42:18,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_interrupt_interrupt_instance_2 [2021-11-21 01:42:18,525 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-11-21 01:42:18,525 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-11-21 01:42:18,525 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-21 01:42:18,526 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-21 01:42:18,526 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_sent_queue [2021-11-21 01:42:18,526 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_sent_queue [2021-11-21 01:42:18,526 INFO L130 BoogieDeclarations]: Found specification of procedure get_hwbase [2021-11-21 01:42:18,526 INFO L138 BoogieDeclarations]: Found implementation of procedure get_hwbase [2021-11-21 01:42:18,526 INFO L130 BoogieDeclarations]: Found specification of procedure setup_hw_rings [2021-11-21 01:42:18,526 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_hw_rings [2021-11-21 01:42:18,527 INFO L130 BoogieDeclarations]: Found specification of procedure nv_nic_irq_tx [2021-11-21 01:42:18,527 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_nic_irq_tx [2021-11-21 01:42:18,527 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-21 01:42:18,527 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_interrupt_interrupt_instance_0 [2021-11-21 01:42:18,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_interrupt_interrupt_instance_0 [2021-11-21 01:42:18,527 INFO L130 BoogieDeclarations]: Found specification of procedure nv_free_irq [2021-11-21 01:42:18,527 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_free_irq [2021-11-21 01:42:18,527 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2021-11-21 01:42:18,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2021-11-21 01:42:18,528 INFO L130 BoogieDeclarations]: Found specification of procedure nv_shutdown [2021-11-21 01:42:18,528 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_shutdown [2021-11-21 01:42:18,528 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-21 01:42:18,528 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2021-11-21 01:42:18,528 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2021-11-21 01:42:18,528 INFO L130 BoogieDeclarations]: Found specification of procedure nv_suspend [2021-11-21 01:42:18,529 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_suspend [2021-11-21 01:42:18,529 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-21 01:42:18,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-21 01:42:18,529 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-21 01:42:18,529 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-21 01:42:18,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-21 01:42:18,529 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-21 01:42:18,529 INFO L130 BoogieDeclarations]: Found specification of procedure nv_gear_backoff_reseed [2021-11-21 01:42:18,530 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_gear_backoff_reseed [2021-11-21 01:42:18,530 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-21 01:42:18,530 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-21 01:42:18,530 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headlen [2021-11-21 01:42:18,530 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headlen [2021-11-21 01:42:18,530 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2021-11-21 01:42:18,530 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2021-11-21 01:42:18,531 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_dma_map [2021-11-21 01:42:18,531 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_dma_map [2021-11-21 01:42:18,531 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-21 01:42:18,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-21 01:42:18,531 INFO L130 BoogieDeclarations]: Found specification of procedure nv_alloc_rx [2021-11-21 01:42:18,531 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_alloc_rx [2021-11-21 01:42:18,531 INFO L130 BoogieDeclarations]: Found specification of procedure skb_is_gso [2021-11-21 01:42:18,532 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_is_gso [2021-11-21 01:42:18,532 INFO L130 BoogieDeclarations]: Found specification of procedure nv_nic_irq_other [2021-11-21 01:42:18,532 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_nic_irq_other [2021-11-21 01:42:18,532 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-11-21 01:42:18,532 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-11-21 01:42:18,532 INFO L130 BoogieDeclarations]: Found specification of procedure nv_nic_irq_rx [2021-11-21 01:42:18,533 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_nic_irq_rx [2021-11-21 01:42:18,533 INFO L130 BoogieDeclarations]: Found specification of procedure nv_restore_mac_addr [2021-11-21 01:42:18,533 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_restore_mac_addr [2021-11-21 01:42:18,533 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2021-11-21 01:42:18,533 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2021-11-21 01:42:18,533 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-21 01:42:18,534 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-21 01:42:18,534 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-11-21 01:42:18,534 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-11-21 01:42:18,534 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-21 01:42:18,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-21 01:42:18,534 INFO L130 BoogieDeclarations]: Found specification of procedure nv_napi_disable [2021-11-21 01:42:18,535 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_napi_disable [2021-11-21 01:42:18,535 INFO L130 BoogieDeclarations]: Found specification of procedure u64_stats_fetch_begin_bh [2021-11-21 01:42:18,535 INFO L138 BoogieDeclarations]: Found implementation of procedure u64_stats_fetch_begin_bh [2021-11-21 01:42:18,535 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2021-11-21 01:42:18,535 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2021-11-21 01:42:18,535 INFO L130 BoogieDeclarations]: Found specification of procedure nv_tx_timeout [2021-11-21 01:42:18,536 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_tx_timeout [2021-11-21 01:42:18,536 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2021-11-21 01:42:18,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2021-11-21 01:42:18,536 INFO L130 BoogieDeclarations]: Found specification of procedure nv_rx_process_optimized [2021-11-21 01:42:18,536 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_rx_process_optimized [2021-11-21 01:42:18,537 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-11-21 01:42:18,537 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-11-21 01:42:18,537 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-11-21 01:42:18,537 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-11-21 01:42:18,537 INFO L130 BoogieDeclarations]: Found specification of procedure nv_init_ring [2021-11-21 01:42:18,537 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_init_ring [2021-11-21 01:42:18,538 INFO L130 BoogieDeclarations]: Found specification of procedure napi_schedule_prep [2021-11-21 01:42:18,538 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_schedule_prep [2021-11-21 01:42:18,538 INFO L130 BoogieDeclarations]: Found specification of procedure nv_legacybackoff_reseed [2021-11-21 01:42:18,538 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_legacybackoff_reseed [2021-11-21 01:42:18,538 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-21 01:42:18,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-21 01:42:18,538 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2021-11-21 01:42:18,539 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2021-11-21 01:42:18,539 INFO L130 BoogieDeclarations]: Found specification of procedure nv_poll_controller [2021-11-21 01:42:18,539 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_poll_controller [2021-11-21 01:42:18,539 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-11-21 01:42:18,539 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-11-21 01:42:18,539 INFO L130 BoogieDeclarations]: Found specification of procedure nv_tx_done_optimized [2021-11-21 01:42:18,540 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_tx_done_optimized [2021-11-21 01:42:18,540 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-21 01:42:18,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-21 01:42:18,540 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-21 01:42:18,540 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-21 01:42:18,541 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-11-21 01:42:18,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-11-21 01:42:18,541 INFO L130 BoogieDeclarations]: Found specification of procedure nv_get_sset_count [2021-11-21 01:42:18,541 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_get_sset_count [2021-11-21 01:42:18,541 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2021-11-21 01:42:18,541 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2021-11-21 01:42:18,542 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-11-21 01:42:18,542 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-11-21 01:42:18,542 INFO L130 BoogieDeclarations]: Found specification of procedure nv_txrx_gate [2021-11-21 01:42:18,542 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_txrx_gate [2021-11-21 01:42:18,542 INFO L130 BoogieDeclarations]: Found specification of procedure nv_remove [2021-11-21 01:42:18,542 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_remove [2021-11-21 01:42:18,543 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-11-21 01:42:18,543 INFO L130 BoogieDeclarations]: Found specification of procedure nv_napi_enable [2021-11-21 01:42:18,543 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_napi_enable [2021-11-21 01:42:18,543 INFO L130 BoogieDeclarations]: Found specification of procedure disable_irq [2021-11-21 01:42:18,543 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_irq [2021-11-21 01:42:18,543 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2021-11-21 01:42:18,544 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2021-11-21 01:42:18,544 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-21 01:42:18,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-21 01:42:18,544 INFO L130 BoogieDeclarations]: Found specification of procedure u64_stats_update_begin [2021-11-21 01:42:18,544 INFO L138 BoogieDeclarations]: Found implementation of procedure u64_stats_update_begin [2021-11-21 01:42:18,544 INFO L130 BoogieDeclarations]: Found specification of procedure napi_gro_receive [2021-11-21 01:42:18,545 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_gro_receive [2021-11-21 01:42:18,545 INFO L130 BoogieDeclarations]: Found specification of procedure free_rings [2021-11-21 01:42:18,545 INFO L138 BoogieDeclarations]: Found implementation of procedure free_rings [2021-11-21 01:42:18,545 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-11-21 01:42:18,545 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-11-21 01:42:18,545 INFO L130 BoogieDeclarations]: Found specification of procedure nv_txrx_reset [2021-11-21 01:42:18,546 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_txrx_reset [2021-11-21 01:42:18,546 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-21 01:42:18,546 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-21 01:42:18,546 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2021-11-21 01:42:18,546 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2021-11-21 01:42:18,546 INFO L130 BoogieDeclarations]: Found specification of procedure nv_do_nic_poll [2021-11-21 01:42:18,547 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_do_nic_poll [2021-11-21 01:42:18,547 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msix [2021-11-21 01:42:18,547 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msix [2021-11-21 01:42:18,547 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-21 01:42:18,547 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-21 01:42:18,547 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2021-11-21 01:42:18,548 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2021-11-21 01:42:18,563 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2021-11-21 01:42:18,563 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2021-11-21 01:42:18,563 INFO L130 BoogieDeclarations]: Found specification of procedure nv_resume [2021-11-21 01:42:18,564 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_resume [2021-11-21 01:42:18,564 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_schedule [2021-11-21 01:42:18,564 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_schedule [2021-11-21 01:42:18,564 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2021-11-21 01:42:18,564 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2021-11-21 01:42:18,564 INFO L130 BoogieDeclarations]: Found specification of procedure round_jiffies [2021-11-21 01:42:18,565 INFO L138 BoogieDeclarations]: Found implementation of procedure round_jiffies [2021-11-21 01:42:18,565 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-11-21 01:42:18,565 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-11-21 01:42:18,565 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2021-11-21 01:42:18,565 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2021-11-21 01:42:18,565 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2021-11-21 01:42:18,566 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2021-11-21 01:42:18,566 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-21 01:42:18,566 INFO L130 BoogieDeclarations]: Found specification of procedure mii_rw [2021-11-21 01:42:18,566 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_rw [2021-11-21 01:42:18,566 INFO L130 BoogieDeclarations]: Found specification of procedure set_msix_vector_map [2021-11-21 01:42:18,566 INFO L138 BoogieDeclarations]: Found implementation of procedure set_msix_vector_map [2021-11-21 01:42:18,567 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-11-21 01:42:18,567 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-11-21 01:42:18,567 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-21 01:42:18,567 INFO L130 BoogieDeclarations]: Found specification of procedure nv_set_loopback [2021-11-21 01:42:18,567 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_set_loopback [2021-11-21 01:42:18,567 INFO L130 BoogieDeclarations]: Found specification of procedure nv_mac_reset [2021-11-21 01:42:18,567 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_mac_reset [2021-11-21 01:42:18,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-21 01:42:18,568 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_completed_queue [2021-11-21 01:42:18,568 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_completed_queue [2021-11-21 01:42:18,568 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-11-21 01:42:18,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-11-21 01:42:18,568 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2021-11-21 01:42:18,569 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2021-11-21 01:42:18,569 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2021-11-21 01:42:18,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2021-11-21 01:42:18,569 INFO L130 BoogieDeclarations]: Found specification of procedure nv_tx_done [2021-11-21 01:42:18,569 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_tx_done [2021-11-21 01:42:18,569 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2021-11-21 01:42:18,570 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2021-11-21 01:42:18,570 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2021-11-21 01:42:18,570 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2021-11-21 01:42:18,570 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-11-21 01:42:18,570 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-11-21 01:42:18,570 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-21 01:42:18,570 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-21 01:42:18,571 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq [2021-11-21 01:42:18,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq [2021-11-21 01:42:18,571 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-21 01:42:18,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-21 01:42:18,571 INFO L130 BoogieDeclarations]: Found specification of procedure get_random_bytes [2021-11-21 01:42:18,571 INFO L138 BoogieDeclarations]: Found implementation of procedure get_random_bytes [2021-11-21 01:42:18,572 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dispatch_instance_register_12_2 [2021-11-21 01:42:18,572 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dispatch_instance_register_12_2 [2021-11-21 01:42:18,572 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2021-11-21 01:42:18,572 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2021-11-21 01:42:18,572 INFO L130 BoogieDeclarations]: Found specification of procedure nv_linkchange [2021-11-21 01:42:18,572 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_linkchange [2021-11-21 01:42:18,573 INFO L130 BoogieDeclarations]: Found specification of procedure nv_disable_hw_interrupts [2021-11-21 01:42:18,573 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_disable_hw_interrupts [2021-11-21 01:42:18,573 INFO L130 BoogieDeclarations]: Found specification of procedure set_bufsize [2021-11-21 01:42:18,573 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bufsize [2021-11-21 01:42:18,573 INFO L130 BoogieDeclarations]: Found specification of procedure phy_init [2021-11-21 01:42:18,573 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_init [2021-11-21 01:42:18,574 INFO L130 BoogieDeclarations]: Found specification of procedure dma_low [2021-11-21 01:42:18,574 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_low [2021-11-21 01:42:18,574 INFO L130 BoogieDeclarations]: Found specification of procedure nv_copy_mac_to_hw [2021-11-21 01:42:18,574 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_copy_mac_to_hw [2021-11-21 01:42:18,574 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-11-21 01:42:18,574 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-11-21 01:42:18,575 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-21 01:42:18,575 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-21 01:42:18,575 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2021-11-21 01:42:18,575 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2021-11-21 01:42:18,575 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2021-11-21 01:42:18,575 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2021-11-21 01:42:18,575 INFO L130 BoogieDeclarations]: Found specification of procedure nv_stop_tx [2021-11-21 01:42:18,576 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_stop_tx [2021-11-21 01:42:18,576 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_lock_bh [2021-11-21 01:42:18,576 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_lock_bh [2021-11-21 01:42:18,576 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-21 01:42:18,576 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-21 01:42:18,577 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_unlock_bh [2021-11-21 01:42:18,577 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_unlock_bh [2021-11-21 01:42:18,577 INFO L130 BoogieDeclarations]: Found specification of procedure nv_force_linkspeed [2021-11-21 01:42:18,577 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_force_linkspeed [2021-11-21 01:42:18,577 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-21 01:42:18,577 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-21 01:42:18,578 INFO L130 BoogieDeclarations]: Found specification of procedure nv_update_pause [2021-11-21 01:42:18,578 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_update_pause [2021-11-21 01:42:18,578 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-21 01:42:18,578 INFO L130 BoogieDeclarations]: Found specification of procedure nv_init_tx [2021-11-21 01:42:18,578 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_init_tx [2021-11-21 01:42:18,578 INFO L130 BoogieDeclarations]: Found specification of procedure eth_type_trans [2021-11-21 01:42:18,579 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_type_trans [2021-11-21 01:42:18,579 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2021-11-21 01:42:18,579 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2021-11-21 01:42:18,579 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-21 01:42:18,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-21 01:42:18,579 INFO L130 BoogieDeclarations]: Found specification of procedure nv_enable_irq [2021-11-21 01:42:18,580 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_enable_irq [2021-11-21 01:42:18,580 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~$Pointer$~TO~int [2021-11-21 01:42:18,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~$Pointer$~TO~int [2021-11-21 01:42:18,580 INFO L130 BoogieDeclarations]: Found specification of procedure nv_unmap_txskb [2021-11-21 01:42:18,580 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_unmap_txskb [2021-11-21 01:42:18,580 INFO L130 BoogieDeclarations]: Found specification of procedure enable_irq [2021-11-21 01:42:18,581 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_irq [2021-11-21 01:42:18,581 INFO L130 BoogieDeclarations]: Found specification of procedure nv_stop_rx [2021-11-21 01:42:18,581 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_stop_rx [2021-11-21 01:42:18,581 INFO L130 BoogieDeclarations]: Found specification of procedure u64_stats_fetch_retry_bh [2021-11-21 01:42:18,581 INFO L138 BoogieDeclarations]: Found implementation of procedure u64_stats_fetch_retry_bh [2021-11-21 01:42:18,581 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-11-21 01:42:18,582 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-11-21 01:42:18,582 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2021-11-21 01:42:18,582 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2021-11-21 01:42:18,582 INFO L130 BoogieDeclarations]: Found specification of procedure nv_getlen [2021-11-21 01:42:18,582 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_getlen [2021-11-21 01:42:18,582 INFO L130 BoogieDeclarations]: Found specification of procedure nv_link_irq [2021-11-21 01:42:18,599 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_link_irq [2021-11-21 01:42:18,599 INFO L130 BoogieDeclarations]: Found specification of procedure nv_optimized [2021-11-21 01:42:18,599 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_optimized [2021-11-21 01:42:18,599 INFO L130 BoogieDeclarations]: Found specification of procedure nv_stop_rxtx [2021-11-21 01:42:18,600 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_stop_rxtx [2021-11-21 01:42:18,600 INFO L130 BoogieDeclarations]: Found specification of procedure nv_update_linkspeed [2021-11-21 01:42:18,600 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_update_linkspeed [2021-11-21 01:42:18,600 INFO L130 BoogieDeclarations]: Found specification of procedure using_multi_irqs [2021-11-21 01:42:18,600 INFO L138 BoogieDeclarations]: Found implementation of procedure using_multi_irqs [2021-11-21 01:42:18,600 INFO L130 BoogieDeclarations]: Found specification of procedure netif_addr_unlock [2021-11-21 01:42:18,600 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_addr_unlock [2021-11-21 01:42:18,600 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-21 01:42:18,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-21 01:42:18,601 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2021-11-21 01:42:18,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2021-11-21 01:42:18,601 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2021-11-21 01:42:18,601 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2021-11-21 01:42:18,601 INFO L130 BoogieDeclarations]: Found specification of procedure dql_avail [2021-11-21 01:42:18,602 INFO L138 BoogieDeclarations]: Found implementation of procedure dql_avail [2021-11-21 01:42:18,602 INFO L130 BoogieDeclarations]: Found specification of procedure disable_irq_lockdep [2021-11-21 01:42:18,602 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_irq_lockdep [2021-11-21 01:42:18,602 INFO L130 BoogieDeclarations]: Found specification of procedure nv_disable_irq [2021-11-21 01:42:18,602 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_disable_irq [2021-11-21 01:42:18,602 INFO L130 BoogieDeclarations]: Found specification of procedure nv_open [2021-11-21 01:42:18,602 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_open [2021-11-21 01:42:18,603 INFO L130 BoogieDeclarations]: Found specification of procedure nv_start_rx [2021-11-21 01:42:18,603 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_start_rx [2021-11-21 01:42:18,603 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-11-21 01:42:18,603 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-11-21 01:42:18,603 INFO L130 BoogieDeclarations]: Found specification of procedure phy_reset [2021-11-21 01:42:18,603 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_reset [2021-11-21 01:42:18,604 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msi [2021-11-21 01:42:18,604 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msi [2021-11-21 01:42:18,604 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-11-21 01:42:18,604 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-11-21 01:42:18,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-21 01:42:18,604 INFO L130 BoogieDeclarations]: Found specification of procedure get_nvpriv [2021-11-21 01:42:18,604 INFO L138 BoogieDeclarations]: Found implementation of procedure get_nvpriv [2021-11-21 01:42:18,605 INFO L130 BoogieDeclarations]: Found specification of procedure nv_request_irq [2021-11-21 01:42:18,605 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_request_irq [2021-11-21 01:42:18,605 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-21 01:42:18,605 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-21 01:42:18,605 INFO L130 BoogieDeclarations]: Found specification of procedure nv_get_regs_len [2021-11-21 01:42:18,605 INFO L138 BoogieDeclarations]: Found implementation of procedure nv_get_regs_len [2021-11-21 01:42:20,325 INFO L236 CfgBuilder]: Building ICFG [2021-11-21 01:42:20,336 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-21 01:42:21,454 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-21 01:54:03,703 INFO L277 CfgBuilder]: Performing block encoding [2021-11-21 01:54:13,222 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-21 01:54:13,222 INFO L301 CfgBuilder]: Removed 6 assume(true) statements. [2021-11-21 01:54:13,229 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:54:13 BoogieIcfgContainer [2021-11-21 01:54:13,230 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-21 01:54:13,231 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-21 01:54:13,232 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-21 01:54:13,235 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-21 01:54:13,235 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 01:42:10" (1/3) ... [2021-11-21 01:54:13,236 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2189e4eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:54:13, skipping insertion in model container [2021-11-21 01:54:13,236 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:42:16" (2/3) ... [2021-11-21 01:54:13,237 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2189e4eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:54:13, skipping insertion in model container [2021-11-21 01:54:13,237 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:54:13" (3/3) ... [2021-11-21 01:54:13,245 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_linux-drivers-clk1_drivers-net-ethernet-nvidia-forcedeth.cil.i [2021-11-21 01:54:13,252 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-21 01:54:13,252 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-21 01:54:13,331 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-21 01:54:13,347 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-21 01:54:13,348 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-21 01:54:13,455 INFO L276 IsEmpty]: Start isEmpty. Operand has 3940 states, 2137 states have (on average 1.2512868507253159) internal successors, (2674), 2277 states have internal predecessors, (2674), 1585 states have call successors, (1585), 217 states have call predecessors, (1585), 216 states have return successors, (1576), 1542 states have call predecessors, (1576), 1576 states have call successors, (1576) [2021-11-21 01:54:13,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-21 01:54:13,464 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:54:13,464 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:54:13,465 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:54:13,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:54:13,471 INFO L85 PathProgramCache]: Analyzing trace with hash 617387991, now seen corresponding path program 1 times [2021-11-21 01:54:13,480 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:54:13,481 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455990192] [2021-11-21 01:54:13,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:54:13,482 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:54:14,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:54:15,029 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-21 01:54:15,030 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:54:15,030 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455990192] [2021-11-21 01:54:15,031 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1455990192] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:54:15,031 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:54:15,031 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:54:15,032 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573500216] [2021-11-21 01:54:15,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:54:15,038 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:54:15,040 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:54:15,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:54:15,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:54:15,089 INFO L87 Difference]: Start difference. First operand has 3940 states, 2137 states have (on average 1.2512868507253159) internal successors, (2674), 2277 states have internal predecessors, (2674), 1585 states have call successors, (1585), 217 states have call predecessors, (1585), 216 states have return successors, (1576), 1542 states have call predecessors, (1576), 1576 states have call successors, (1576) Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-11-21 01:54:17,292 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:54:20,081 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:54:23,304 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:54:25,214 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:54:27,235 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:54:31,236 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:54:35,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:54:35,962 INFO L93 Difference]: Finished difference Result 6811 states and 9987 transitions. [2021-11-21 01:54:35,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-21 01:54:35,964 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 34 [2021-11-21 01:54:35,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:54:36,051 INFO L225 Difference]: With dead ends: 6811 [2021-11-21 01:54:36,052 INFO L226 Difference]: Without dead ends: 6509 [2021-11-21 01:54:36,069 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:54:36,072 INFO L933 BasicCegarLoop]: 6488 mSDtfsCounter, 4154 mSDsluCounter, 12780 mSDsCounter, 0 mSdLazyCounter, 1461 mSolverCounterSat, 1 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4156 SdHoareTripleChecker+Valid, 18300 SdHoareTripleChecker+Invalid, 1467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1461 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.3s IncrementalHoareTripleChecker+Time [2021-11-21 01:54:36,073 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4156 Valid, 18300 Invalid, 1467 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1461 Invalid, 5 Unknown, 0 Unchecked, 20.3s Time] [2021-11-21 01:54:36,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6509 states. [2021-11-21 01:54:36,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6509 to 6509. [2021-11-21 01:54:36,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6509 states, 3527 states have (on average 1.2353274737737454) internal successors, (4357), 3746 states have internal predecessors, (4357), 2579 states have call successors, (2579), 403 states have call predecessors, (2579), 402 states have return successors, (2577), 2524 states have call predecessors, (2577), 2577 states have call successors, (2577) [2021-11-21 01:54:36,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6509 states to 6509 states and 9513 transitions. [2021-11-21 01:54:36,739 INFO L78 Accepts]: Start accepts. Automaton has 6509 states and 9513 transitions. Word has length 34 [2021-11-21 01:54:36,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:54:36,739 INFO L470 AbstractCegarLoop]: Abstraction has 6509 states and 9513 transitions. [2021-11-21 01:54:36,740 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-11-21 01:54:36,740 INFO L276 IsEmpty]: Start isEmpty. Operand 6509 states and 9513 transitions. [2021-11-21 01:54:36,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2021-11-21 01:54:36,762 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:54:36,763 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:54:36,763 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-21 01:54:36,763 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:54:36,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:54:36,764 INFO L85 PathProgramCache]: Analyzing trace with hash -187462166, now seen corresponding path program 1 times [2021-11-21 01:54:36,764 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:54:36,765 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313338325] [2021-11-21 01:54:36,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:54:36,765 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:54:37,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:54:38,006 INFO L134 CoverageAnalysis]: Checked inductivity of 277 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 274 trivial. 0 not checked. [2021-11-21 01:54:38,007 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:54:38,007 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313338325] [2021-11-21 01:54:38,007 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [313338325] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:54:38,007 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:54:38,007 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 01:54:38,007 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241675831] [2021-11-21 01:54:38,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:54:38,009 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:54:38,009 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:54:38,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:54:38,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:54:38,010 INFO L87 Difference]: Start difference. First operand 6509 states and 9513 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2021-11-21 01:54:40,206 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:54:42,733 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:54:45,684 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:54:48,466 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:54:52,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:54:52,957 INFO L93 Difference]: Finished difference Result 13010 states and 19017 transitions. [2021-11-21 01:54:52,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:54:52,958 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) Word has length 213 [2021-11-21 01:54:52,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:54:53,018 INFO L225 Difference]: With dead ends: 13010 [2021-11-21 01:54:53,019 INFO L226 Difference]: Without dead ends: 6515 [2021-11-21 01:54:53,064 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:54:53,066 INFO L933 BasicCegarLoop]: 5322 mSDtfsCounter, 2 mSDsluCounter, 5788 mSDsCounter, 0 mSdLazyCounter, 964 mSolverCounterSat, 1 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 10637 SdHoareTripleChecker+Invalid, 969 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 964 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.6s IncrementalHoareTripleChecker+Time [2021-11-21 01:54:53,066 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 10637 Invalid, 969 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 964 Invalid, 4 Unknown, 0 Unchecked, 14.6s Time] [2021-11-21 01:54:53,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6515 states. [2021-11-21 01:54:53,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6515 to 6514. [2021-11-21 01:54:53,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6514 states, 3532 states have (on average 1.2355605889014722) internal successors, (4364), 3751 states have internal predecessors, (4364), 2579 states have call successors, (2579), 403 states have call predecessors, (2579), 402 states have return successors, (2577), 2524 states have call predecessors, (2577), 2577 states have call successors, (2577) [2021-11-21 01:54:53,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6514 states to 6514 states and 9520 transitions. [2021-11-21 01:54:53,553 INFO L78 Accepts]: Start accepts. Automaton has 6514 states and 9520 transitions. Word has length 213 [2021-11-21 01:54:53,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:54:53,554 INFO L470 AbstractCegarLoop]: Abstraction has 6514 states and 9520 transitions. [2021-11-21 01:54:53,555 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2021-11-21 01:54:53,555 INFO L276 IsEmpty]: Start isEmpty. Operand 6514 states and 9520 transitions. [2021-11-21 01:54:53,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2021-11-21 01:54:53,561 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:54:53,561 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:54:53,562 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-21 01:54:53,562 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:54:53,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:54:53,563 INFO L85 PathProgramCache]: Analyzing trace with hash -704550220, now seen corresponding path program 1 times [2021-11-21 01:54:53,563 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:54:53,563 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911319910] [2021-11-21 01:54:53,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:54:53,563 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:54:54,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:54:55,137 INFO L134 CoverageAnalysis]: Checked inductivity of 277 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 277 trivial. 0 not checked. [2021-11-21 01:54:55,137 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:54:55,137 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911319910] [2021-11-21 01:54:55,137 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [911319910] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:54:55,137 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:54:55,138 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:54:55,138 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87466814] [2021-11-21 01:54:55,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:54:55,139 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:54:55,139 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:54:55,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:54:55,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:54:55,140 INFO L87 Difference]: Start difference. First operand 6514 states and 9520 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2021-11-21 01:54:57,328 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:54:59,836 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:55:02,602 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:55:05,316 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:55:07,865 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:55:14,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:55:14,568 INFO L93 Difference]: Finished difference Result 9474 states and 13787 transitions. [2021-11-21 01:55:14,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 01:55:14,568 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) Word has length 214 [2021-11-21 01:55:14,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:55:14,652 INFO L225 Difference]: With dead ends: 9474 [2021-11-21 01:55:14,652 INFO L226 Difference]: Without dead ends: 9204 [2021-11-21 01:55:14,662 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:55:14,664 INFO L933 BasicCegarLoop]: 6516 mSDtfsCounter, 4195 mSDsluCounter, 12773 mSDsCounter, 0 mSdLazyCounter, 1436 mSolverCounterSat, 0 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4197 SdHoareTripleChecker+Valid, 18334 SdHoareTripleChecker+Invalid, 1441 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1436 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.1s IncrementalHoareTripleChecker+Time [2021-11-21 01:55:14,664 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4197 Valid, 18334 Invalid, 1441 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1436 Invalid, 5 Unknown, 0 Unchecked, 19.1s Time] [2021-11-21 01:55:14,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9204 states. [2021-11-21 01:55:15,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9204 to 9200. [2021-11-21 01:55:15,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9200 states, 4983 states have (on average 1.2303833032309854) internal successors, (6131), 5293 states have internal predecessors, (6131), 3618 states have call successors, (3618), 599 states have call predecessors, (3618), 598 states have return successors, (3617), 3541 states have call predecessors, (3617), 3616 states have call successors, (3617) [2021-11-21 01:55:15,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9200 states to 9200 states and 13366 transitions. [2021-11-21 01:55:15,294 INFO L78 Accepts]: Start accepts. Automaton has 9200 states and 13366 transitions. Word has length 214 [2021-11-21 01:55:15,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:55:15,296 INFO L470 AbstractCegarLoop]: Abstraction has 9200 states and 13366 transitions. [2021-11-21 01:55:15,297 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2021-11-21 01:55:15,298 INFO L276 IsEmpty]: Start isEmpty. Operand 9200 states and 13366 transitions. [2021-11-21 01:55:15,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 382 [2021-11-21 01:55:15,325 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:55:15,326 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:55:15,326 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-21 01:55:15,326 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:55:15,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:55:15,327 INFO L85 PathProgramCache]: Analyzing trace with hash -1780054155, now seen corresponding path program 1 times [2021-11-21 01:55:15,327 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:55:15,327 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746317301] [2021-11-21 01:55:15,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:55:15,328 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:55:15,826 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 01:55:15,827 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [228521396] [2021-11-21 01:55:15,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:55:15,827 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:55:15,828 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44cb85f2-0f1a-4302-9116-6a325a635ccf/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:55:15,832 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44cb85f2-0f1a-4302-9116-6a325a635ccf/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:55:15,838 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44cb85f2-0f1a-4302-9116-6a325a635ccf/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-21 01:55:18,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:55:18,207 INFO L263 TraceCheckSpWp]: Trace formula consists of 6348 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-21 01:55:18,239 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:55:19,297 INFO L134 CoverageAnalysis]: Checked inductivity of 428 backedges. 165 proven. 0 refuted. 0 times theorem prover too weak. 263 trivial. 0 not checked. [2021-11-21 01:55:19,298 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 01:55:19,298 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:55:19,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746317301] [2021-11-21 01:55:19,298 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 01:55:19,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [228521396] [2021-11-21 01:55:19,298 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [228521396] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:55:19,298 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:55:19,298 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 01:55:19,299 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496474896] [2021-11-21 01:55:19,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:55:19,300 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:55:19,300 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:55:19,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:55:19,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:55:19,300 INFO L87 Difference]: Start difference. First operand 9200 states and 13366 transitions. Second operand has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 2 states have call successors, (75), 2 states have call predecessors, (75), 2 states have return successors, (74), 2 states have call predecessors, (74), 2 states have call successors, (74) [2021-11-21 01:55:21,430 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:55:23,923 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:55:26,389 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:55:28,584 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:55:30,606 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:55:33,383 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:55:35,551 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:55:39,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:55:39,727 INFO L93 Difference]: Finished difference Result 14121 states and 20798 transitions. [2021-11-21 01:55:39,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:55:39,728 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 2 states have call successors, (75), 2 states have call predecessors, (75), 2 states have return successors, (74), 2 states have call predecessors, (74), 2 states have call successors, (74) Word has length 381 [2021-11-21 01:55:39,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:55:39,807 INFO L225 Difference]: With dead ends: 14121 [2021-11-21 01:55:39,808 INFO L226 Difference]: Without dead ends: 10210 [2021-11-21 01:55:39,841 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 380 GetRequests, 379 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:55:39,843 INFO L933 BasicCegarLoop]: 6474 mSDtfsCounter, 724 mSDsluCounter, 6091 mSDsCounter, 0 mSdLazyCounter, 1085 mSolverCounterSat, 2 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1182 SdHoareTripleChecker+Valid, 12092 SdHoareTripleChecker+Invalid, 1093 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1085 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.2s IncrementalHoareTripleChecker+Time [2021-11-21 01:55:39,843 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1182 Valid, 12092 Invalid, 1093 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1085 Invalid, 6 Unknown, 0 Unchecked, 20.2s Time] [2021-11-21 01:55:39,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10210 states. [2021-11-21 01:55:40,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10210 to 9215. [2021-11-21 01:55:40,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9215 states, 4991 states have (on average 1.2306151071929472) internal successors, (6142), 5301 states have internal predecessors, (6142), 3625 states have call successors, (3625), 599 states have call predecessors, (3625), 598 states have return successors, (3624), 3548 states have call predecessors, (3624), 3623 states have call successors, (3624) [2021-11-21 01:55:40,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9215 states to 9215 states and 13391 transitions. [2021-11-21 01:55:40,463 INFO L78 Accepts]: Start accepts. Automaton has 9215 states and 13391 transitions. Word has length 381 [2021-11-21 01:55:40,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:55:40,465 INFO L470 AbstractCegarLoop]: Abstraction has 9215 states and 13391 transitions. [2021-11-21 01:55:40,466 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 2 states have call successors, (75), 2 states have call predecessors, (75), 2 states have return successors, (74), 2 states have call predecessors, (74), 2 states have call successors, (74) [2021-11-21 01:55:40,466 INFO L276 IsEmpty]: Start isEmpty. Operand 9215 states and 13391 transitions. [2021-11-21 01:55:40,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 440 [2021-11-21 01:55:40,496 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:55:40,497 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 8, 7, 7, 6, 5, 5, 5, 5, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:55:40,544 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44cb85f2-0f1a-4302-9116-6a325a635ccf/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-21 01:55:40,719 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44cb85f2-0f1a-4302-9116-6a325a635ccf/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:55:40,720 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:55:40,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:55:40,720 INFO L85 PathProgramCache]: Analyzing trace with hash 1124909005, now seen corresponding path program 1 times [2021-11-21 01:55:40,720 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:55:40,720 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787016099] [2021-11-21 01:55:40,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:55:40,721 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:55:41,457 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 01:55:41,457 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1328144832] [2021-11-21 01:55:41,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:55:41,457 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:55:41,458 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44cb85f2-0f1a-4302-9116-6a325a635ccf/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:55:41,459 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44cb85f2-0f1a-4302-9116-6a325a635ccf/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:55:41,474 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44cb85f2-0f1a-4302-9116-6a325a635ccf/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-21 01:55:43,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:55:43,941 INFO L263 TraceCheckSpWp]: Trace formula consists of 6641 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-21 01:55:43,957 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:55:45,450 INFO L134 CoverageAnalysis]: Checked inductivity of 519 backedges. 182 proven. 0 refuted. 0 times theorem prover too weak. 337 trivial. 0 not checked. [2021-11-21 01:55:45,450 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 01:55:45,450 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:55:45,450 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1787016099] [2021-11-21 01:55:45,450 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 01:55:45,450 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1328144832] [2021-11-21 01:55:45,451 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1328144832] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:55:45,451 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:55:45,451 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-21 01:55:45,451 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741740733] [2021-11-21 01:55:45,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:55:45,452 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-21 01:55:45,452 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:55:45,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-21 01:55:45,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:55:45,453 INFO L87 Difference]: Start difference. First operand 9215 states and 13391 transitions. Second operand has 5 states, 5 states have (on average 34.0) internal successors, (170), 5 states have internal predecessors, (170), 3 states have call successors, (86), 2 states have call predecessors, (86), 3 states have return successors, (85), 3 states have call predecessors, (85), 3 states have call successors, (85) [2021-11-21 01:55:47,598 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:55:50,219 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:55:53,090 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:55:55,220 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:55:57,305 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []