./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-neterion-vxge-vxge.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_360af17b-888d-4aac-8f82-1204e0591448/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_360af17b-888d-4aac-8f82-1204e0591448/bin/uautomizer-DQz5hQGWxF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_360af17b-888d-4aac-8f82-1204e0591448/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_360af17b-888d-4aac-8f82-1204e0591448/bin/uautomizer-DQz5hQGWxF/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-neterion-vxge-vxge.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_360af17b-888d-4aac-8f82-1204e0591448/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_360af17b-888d-4aac-8f82-1204e0591448/bin/uautomizer-DQz5hQGWxF --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 43bed732c323fe40708c0d64bb60905c00a1c3c7d8f882023d821fe272dfa892 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 07:23:58,694 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 07:23:58,697 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 07:23:58,744 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 07:23:58,745 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 07:23:58,749 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 07:23:58,751 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 07:23:58,756 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 07:23:58,758 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 07:23:58,764 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 07:23:58,765 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 07:23:58,767 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 07:23:58,767 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 07:23:58,770 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 07:23:58,772 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 07:23:58,776 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 07:23:58,778 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 07:23:58,779 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 07:23:58,782 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 07:23:58,789 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 07:23:58,791 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 07:23:58,793 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 07:23:58,796 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 07:23:58,797 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 07:23:58,806 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 07:23:58,806 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 07:23:58,807 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 07:23:58,809 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 07:23:58,809 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 07:23:58,811 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 07:23:58,811 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 07:23:58,812 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 07:23:58,814 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 07:23:58,815 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 07:23:58,816 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 07:23:58,816 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 07:23:58,817 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 07:23:58,817 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 07:23:58,818 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 07:23:58,819 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 07:23:58,819 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 07:23:58,820 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_360af17b-888d-4aac-8f82-1204e0591448/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-20 07:23:58,863 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 07:23:58,863 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 07:23:58,864 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 07:23:58,864 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 07:23:58,871 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 07:23:58,871 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 07:23:58,872 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 07:23:58,873 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 07:23:58,873 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 07:23:58,873 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 07:23:58,874 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 07:23:58,874 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 07:23:58,875 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 07:23:58,875 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 07:23:58,875 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 07:23:58,875 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 07:23:58,875 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 07:23:58,876 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 07:23:58,876 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 07:23:58,876 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 07:23:58,876 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 07:23:58,876 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 07:23:58,877 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 07:23:58,877 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 07:23:58,877 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 07:23:58,877 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-20 07:23:58,878 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-20 07:23:58,878 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-20 07:23:58,878 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-20 07:23:58,879 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 07:23:58,880 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 07:23:58,880 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_360af17b-888d-4aac-8f82-1204e0591448/bin/uautomizer-DQz5hQGWxF/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_360af17b-888d-4aac-8f82-1204e0591448/bin/uautomizer-DQz5hQGWxF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 43bed732c323fe40708c0d64bb60905c00a1c3c7d8f882023d821fe272dfa892 [2021-11-20 07:23:59,197 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 07:23:59,235 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 07:23:59,238 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 07:23:59,239 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 07:23:59,240 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 07:23:59,241 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_360af17b-888d-4aac-8f82-1204e0591448/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-neterion-vxge-vxge.cil.i [2021-11-20 07:23:59,338 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_360af17b-888d-4aac-8f82-1204e0591448/bin/uautomizer-DQz5hQGWxF/data/ea3d53728/63b7c3d16e7d4e0890a5c53784aa6601/FLAG07538cb37 [2021-11-20 07:24:00,623 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 07:24:00,624 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_360af17b-888d-4aac-8f82-1204e0591448/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-neterion-vxge-vxge.cil.i [2021-11-20 07:24:00,746 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_360af17b-888d-4aac-8f82-1204e0591448/bin/uautomizer-DQz5hQGWxF/data/ea3d53728/63b7c3d16e7d4e0890a5c53784aa6601/FLAG07538cb37 [2021-11-20 07:24:01,231 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_360af17b-888d-4aac-8f82-1204e0591448/bin/uautomizer-DQz5hQGWxF/data/ea3d53728/63b7c3d16e7d4e0890a5c53784aa6601 [2021-11-20 07:24:01,256 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 07:24:01,258 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 07:24:01,261 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 07:24:01,261 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 07:24:01,265 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 07:24:01,266 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:24:01" (1/1) ... [2021-11-20 07:24:01,267 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e0f7d8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:24:01, skipping insertion in model container [2021-11-20 07:24:01,267 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:24:01" (1/1) ... [2021-11-20 07:24:01,274 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 07:24:01,509 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 07:24:11,628 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_360af17b-888d-4aac-8f82-1204e0591448/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-neterion-vxge-vxge.cil.i[860429,860442] [2021-11-20 07:24:11,631 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_360af17b-888d-4aac-8f82-1204e0591448/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-neterion-vxge-vxge.cil.i[860574,860587] [2021-11-20 07:24:11,674 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 07:24:11,730 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 07:24:12,797 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_360af17b-888d-4aac-8f82-1204e0591448/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-neterion-vxge-vxge.cil.i[860429,860442] [2021-11-20 07:24:12,797 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_360af17b-888d-4aac-8f82-1204e0591448/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-neterion-vxge-vxge.cil.i[860574,860587] [2021-11-20 07:24:12,819 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 07:24:13,336 INFO L208 MainTranslator]: Completed translation [2021-11-20 07:24:13,337 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:24:13 WrapperNode [2021-11-20 07:24:13,337 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 07:24:13,338 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 07:24:13,338 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 07:24:13,338 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 07:24:13,345 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:24:13" (1/1) ... [2021-11-20 07:24:13,620 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:24:13" (1/1) ... [2021-11-20 07:24:14,356 INFO L137 Inliner]: procedures = 823, calls = 7976, calls flagged for inlining = 349, calls inlined = 334, statements flattened = 18499 [2021-11-20 07:24:14,358 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 07:24:14,358 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 07:24:14,359 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 07:24:14,359 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 07:24:14,368 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:24:13" (1/1) ... [2021-11-20 07:24:14,368 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:24:13" (1/1) ... [2021-11-20 07:24:14,487 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:24:13" (1/1) ... [2021-11-20 07:24:14,487 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:24:13" (1/1) ... [2021-11-20 07:24:15,067 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:24:13" (1/1) ... [2021-11-20 07:24:15,145 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:24:13" (1/1) ... [2021-11-20 07:24:15,244 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:24:13" (1/1) ... [2021-11-20 07:24:15,362 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 07:24:15,363 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 07:24:15,364 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 07:24:15,364 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 07:24:15,365 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:24:13" (1/1) ... [2021-11-20 07:24:15,372 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 07:24:15,383 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_360af17b-888d-4aac-8f82-1204e0591448/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:24:15,403 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_360af17b-888d-4aac-8f82-1204e0591448/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 07:24:15,433 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_360af17b-888d-4aac-8f82-1204e0591448/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 07:24:15,457 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_close [2021-11-20 07:24:15,457 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_close [2021-11-20 07:24:15,457 INFO L130 BoogieDeclarations]: Found specification of procedure __vxge_hw_vpath_sw_reset [2021-11-20 07:24:15,457 INFO L138 BoogieDeclarations]: Found implementation of procedure __vxge_hw_vpath_sw_reset [2021-11-20 07:24:15,457 INFO L130 BoogieDeclarations]: Found specification of procedure __vxge_hw_vpath_xmac_tx_stats_get [2021-11-20 07:24:15,457 INFO L138 BoogieDeclarations]: Found implementation of procedure __vxge_hw_vpath_xmac_tx_stats_get [2021-11-20 07:24:15,458 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2021-11-20 07:24:15,458 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2021-11-20 07:24:15,458 INFO L130 BoogieDeclarations]: Found specification of procedure __vxge_hw_mempool_destroy [2021-11-20 07:24:15,458 INFO L138 BoogieDeclarations]: Found implementation of procedure __vxge_hw_mempool_destroy [2021-11-20 07:24:15,458 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2021-11-20 07:24:15,458 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2021-11-20 07:24:15,458 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_108 [2021-11-20 07:24:15,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_108 [2021-11-20 07:24:15,459 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_109 [2021-11-20 07:24:15,459 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_109 [2021-11-20 07:24:15,459 INFO L130 BoogieDeclarations]: Found specification of procedure VXGE_COMPLETE_VPATH_TX [2021-11-20 07:24:15,459 INFO L138 BoogieDeclarations]: Found implementation of procedure VXGE_COMPLETE_VPATH_TX [2021-11-20 07:24:15,459 INFO L130 BoogieDeclarations]: Found specification of procedure __vxge_hw_device_handle_link_down_ind [2021-11-20 07:24:15,459 INFO L138 BoogieDeclarations]: Found implementation of procedure __vxge_hw_device_handle_link_down_ind [2021-11-20 07:24:15,459 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_hw_vpath_stats_enable [2021-11-20 07:24:15,459 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_hw_vpath_stats_enable [2021-11-20 07:24:15,460 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_device_register [2021-11-20 07:24:15,460 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_device_register [2021-11-20 07:24:15,460 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_hw_device_intr_enable [2021-11-20 07:24:15,460 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_hw_device_intr_enable [2021-11-20 07:24:15,460 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_ethtool_sset [2021-11-20 07:24:15,460 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_ethtool_sset [2021-11-20 07:24:15,460 INFO L130 BoogieDeclarations]: Found specification of procedure __vxge_hw_device_access_rights_get [2021-11-20 07:24:15,460 INFO L138 BoogieDeclarations]: Found implementation of procedure __vxge_hw_device_access_rights_get [2021-11-20 07:24:15,461 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-20 07:24:15,461 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-20 07:24:15,461 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-11-20 07:24:15,461 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-11-20 07:24:15,461 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_hw_fifo_txdl_buffer_set [2021-11-20 07:24:15,461 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_hw_fifo_txdl_buffer_set [2021-11-20 07:24:15,461 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_netdev_open_13_6 [2021-11-20 07:24:15,461 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_netdev_open_13_6 [2021-11-20 07:24:15,461 INFO L130 BoogieDeclarations]: Found specification of procedure is_vxge_card_up [2021-11-20 07:24:15,462 INFO L138 BoogieDeclarations]: Found implementation of procedure is_vxge_card_up [2021-11-20 07:24:15,462 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_rem_isr [2021-11-20 07:24:15,462 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_rem_isr [2021-11-20 07:24:15,462 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_hw_vpath_wait_receive_idle [2021-11-20 07:24:15,462 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_hw_vpath_wait_receive_idle [2021-11-20 07:24:15,463 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_callback_link_down [2021-11-20 07:24:15,463 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_callback_link_down [2021-11-20 07:24:15,463 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_hw_mgmt_reg_read [2021-11-20 07:24:15,463 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_hw_mgmt_reg_read [2021-11-20 07:24:15,463 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dummy_resourceless_instance_callback_4_22 [2021-11-20 07:24:15,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dummy_resourceless_instance_callback_4_22 [2021-11-20 07:24:15,464 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_fw_upgrade [2021-11-20 07:24:15,464 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_fw_upgrade [2021-11-20 07:24:15,464 INFO L130 BoogieDeclarations]: Found specification of procedure __vxge_hw_vpath_rts_table_set [2021-11-20 07:24:15,464 INFO L138 BoogieDeclarations]: Found implementation of procedure __vxge_hw_vpath_rts_table_set [2021-11-20 07:24:15,464 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-20 07:24:15,465 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-20 07:24:15,466 INFO L130 BoogieDeclarations]: Found specification of procedure do_vxge_reset [2021-11-20 07:24:15,466 INFO L138 BoogieDeclarations]: Found implementation of procedure do_vxge_reset [2021-11-20 07:24:15,466 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-20 07:24:15,466 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-20 07:24:15,466 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-11-20 07:24:15,466 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-11-20 07:24:15,467 INFO L130 BoogieDeclarations]: Found specification of procedure __vxge_hw_ring_abort [2021-11-20 07:24:15,467 INFO L138 BoogieDeclarations]: Found implementation of procedure __vxge_hw_ring_abort [2021-11-20 07:24:15,467 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-11-20 07:24:15,467 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-11-20 07:24:15,467 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_hw_mrpcim_stats_access [2021-11-20 07:24:15,468 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_hw_mrpcim_stats_access [2021-11-20 07:24:15,468 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_101 [2021-11-20 07:24:15,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_101 [2021-11-20 07:24:15,469 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-11-20 07:24:15,469 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-11-20 07:24:15,469 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_hw_device_mask_all [2021-11-20 07:24:15,469 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_hw_device_mask_all [2021-11-20 07:24:15,469 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dummy_resourceless_instance_callback_4_33 [2021-11-20 07:24:15,469 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dummy_resourceless_instance_callback_4_33 [2021-11-20 07:24:15,469 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-11-20 07:24:15,469 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-11-20 07:24:15,470 INFO L130 BoogieDeclarations]: Found specification of procedure netif_napi_add [2021-11-20 07:24:15,470 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_napi_add [2021-11-20 07:24:15,470 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-20 07:24:15,470 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-20 07:24:15,470 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq_104 [2021-11-20 07:24:15,470 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq_104 [2021-11-20 07:24:15,471 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq_105 [2021-11-20 07:24:15,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq_105 [2021-11-20 07:24:15,471 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq_106 [2021-11-20 07:24:15,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq_106 [2021-11-20 07:24:15,472 INFO L130 BoogieDeclarations]: Found specification of procedure __vxge_hw_pio_mem_write32_upper [2021-11-20 07:24:15,472 INFO L138 BoogieDeclarations]: Found implementation of procedure __vxge_hw_pio_mem_write32_upper [2021-11-20 07:24:15,472 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_probe [2021-11-20 07:24:15,472 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_probe [2021-11-20 07:24:15,472 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_hw_channel_dtr_try_complete [2021-11-20 07:24:15,473 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_hw_channel_dtr_try_complete [2021-11-20 07:24:15,473 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-20 07:24:15,473 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-20 07:24:15,473 INFO L130 BoogieDeclarations]: Found specification of procedure pcie_capability_read_word [2021-11-20 07:24:15,473 INFO L138 BoogieDeclarations]: Found implementation of procedure pcie_capability_read_word [2021-11-20 07:24:15,474 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-20 07:24:15,474 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq_107 [2021-11-20 07:24:15,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq_107 [2021-11-20 07:24:15,474 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-20 07:24:15,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-20 07:24:15,474 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_ethtool_get_sset_count [2021-11-20 07:24:15,474 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_ethtool_get_sset_count [2021-11-20 07:24:15,474 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_hw_device_xmac_aggr_stats_get [2021-11-20 07:24:15,474 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_hw_device_xmac_aggr_stats_get [2021-11-20 07:24:15,475 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2021-11-20 07:24:15,475 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2021-11-20 07:24:15,475 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_reset_all_vpaths [2021-11-20 07:24:15,475 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_reset_all_vpaths [2021-11-20 07:24:15,475 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_mac_list_add [2021-11-20 07:24:15,475 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_mac_list_add [2021-11-20 07:24:15,476 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_re_pre_post [2021-11-20 07:24:15,476 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_re_pre_post [2021-11-20 07:24:15,476 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-20 07:24:15,477 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-20 07:24:15,479 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2021-11-20 07:24:15,480 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2021-11-20 07:24:15,480 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_hw_fifo_txdl_free [2021-11-20 07:24:15,480 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_hw_fifo_txdl_free [2021-11-20 07:24:15,482 INFO L130 BoogieDeclarations]: Found specification of procedure napi_enable [2021-11-20 07:24:15,482 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_enable [2021-11-20 07:24:15,482 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dispatch_irq_register_17_2 [2021-11-20 07:24:15,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dispatch_irq_register_17_2 [2021-11-20 07:24:15,483 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_ethtool_setpause_data [2021-11-20 07:24:15,488 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_ethtool_setpause_data [2021-11-20 07:24:15,488 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_hw_ring_rxds_per_block_get [2021-11-20 07:24:15,489 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_hw_ring_rxds_per_block_get [2021-11-20 07:24:15,489 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-20 07:24:15,489 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_calloc [2021-11-20 07:24:15,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_calloc [2021-11-20 07:24:15,489 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_netdev [2021-11-20 07:24:15,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_netdev [2021-11-20 07:24:15,489 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2021-11-20 07:24:15,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2021-11-20 07:24:15,489 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 07:24:15,490 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-20 07:24:15,490 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-20 07:24:15,490 INFO L130 BoogieDeclarations]: Found specification of procedure __vxge_hw_vpath_reset_check [2021-11-20 07:24:15,490 INFO L138 BoogieDeclarations]: Found implementation of procedure __vxge_hw_vpath_reset_check [2021-11-20 07:24:15,490 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-20 07:24:15,491 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-20 07:24:15,491 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-20 07:24:15,491 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-20 07:24:15,491 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2021-11-20 07:24:15,491 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2021-11-20 07:24:15,491 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headlen [2021-11-20 07:24:15,491 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headlen [2021-11-20 07:24:15,491 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-11-20 07:24:15,491 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-11-20 07:24:15,491 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-11-20 07:24:15,492 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-11-20 07:24:15,492 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2021-11-20 07:24:15,492 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2021-11-20 07:24:15,492 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_vpath_intr_enable [2021-11-20 07:24:15,492 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_vpath_intr_enable [2021-11-20 07:24:15,492 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_hw_device_setpause_data [2021-11-20 07:24:15,492 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_hw_device_setpause_data [2021-11-20 07:24:15,492 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_hw_vpath_intr_disable [2021-11-20 07:24:15,492 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_hw_vpath_intr_disable [2021-11-20 07:24:15,493 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_os_dma_free [2021-11-20 07:24:15,493 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_os_dma_free [2021-11-20 07:24:15,493 INFO L130 BoogieDeclarations]: Found specification of procedure __vxge_hw_channel_allocate [2021-11-20 07:24:15,493 INFO L138 BoogieDeclarations]: Found implementation of procedure __vxge_hw_channel_allocate [2021-11-20 07:24:15,493 INFO L130 BoogieDeclarations]: Found specification of procedure napi_disable [2021-11-20 07:24:15,493 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_disable [2021-11-20 07:24:15,493 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_hw_device_error_level_get [2021-11-20 07:24:15,493 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_hw_device_error_level_get [2021-11-20 07:24:15,493 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_hw_mgmt_reg_write [2021-11-20 07:24:15,494 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_hw_mgmt_reg_write [2021-11-20 07:24:15,494 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-20 07:24:15,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-20 07:24:15,494 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_hw_vpath_enable [2021-11-20 07:24:15,494 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_hw_vpath_enable [2021-11-20 07:24:15,494 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_hw_channel_dtr_count [2021-11-20 07:24:15,494 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_hw_channel_dtr_count [2021-11-20 07:24:15,494 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_post [2021-11-20 07:24:15,494 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_post [2021-11-20 07:24:15,495 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2021-11-20 07:24:15,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2021-11-20 07:24:15,495 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_set_mac_addr [2021-11-20 07:24:15,495 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_set_mac_addr [2021-11-20 07:24:15,495 INFO L130 BoogieDeclarations]: Found specification of procedure __vxge_hw_device_handle_link_up_ind [2021-11-20 07:24:15,495 INFO L138 BoogieDeclarations]: Found implementation of procedure __vxge_hw_device_handle_link_up_ind [2021-11-20 07:24:15,495 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-11-20 07:24:15,495 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-11-20 07:24:15,495 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_hw_device_unmask_all [2021-11-20 07:24:15,495 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_hw_device_unmask_all [2021-11-20 07:24:15,496 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_hw_device_trace_level_get [2021-11-20 07:24:15,496 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_hw_device_trace_level_get [2021-11-20 07:24:15,496 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 07:24:15,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 07:24:15,496 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_hw_channel_msix_clear [2021-11-20 07:24:15,496 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_hw_channel_msix_clear [2021-11-20 07:24:15,496 INFO L130 BoogieDeclarations]: Found specification of procedure __vxge_hw_device_handle_error [2021-11-20 07:24:15,496 INFO L138 BoogieDeclarations]: Found implementation of procedure __vxge_hw_device_handle_error [2021-11-20 07:24:15,496 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-11-20 07:24:15,497 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-11-20 07:24:15,497 INFO L130 BoogieDeclarations]: Found specification of procedure __vxge_hw_ring_create [2021-11-20 07:24:15,497 INFO L138 BoogieDeclarations]: Found implementation of procedure __vxge_hw_ring_create [2021-11-20 07:24:15,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-20 07:24:15,497 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-11-20 07:24:15,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-11-20 07:24:15,497 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_hw_vpath_mac_addr_add [2021-11-20 07:24:15,497 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_hw_vpath_mac_addr_add [2021-11-20 07:24:15,497 INFO L130 BoogieDeclarations]: Found specification of procedure napi_schedule [2021-11-20 07:24:15,498 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_schedule [2021-11-20 07:24:15,498 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-11-20 07:24:15,498 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-11-20 07:24:15,498 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_rem_msix_isr [2021-11-20 07:24:15,498 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_rem_msix_isr [2021-11-20 07:24:15,498 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-11-20 07:24:15,498 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_add_mac_addr [2021-11-20 07:24:15,498 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_add_mac_addr [2021-11-20 07:24:15,498 INFO L130 BoogieDeclarations]: Found specification of procedure __vxge_hw_ring_delete [2021-11-20 07:24:15,499 INFO L138 BoogieDeclarations]: Found implementation of procedure __vxge_hw_ring_delete [2021-11-20 07:24:15,499 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-20 07:24:15,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-20 07:24:15,499 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_isr_napi [2021-11-20 07:24:15,499 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_isr_napi [2021-11-20 07:24:15,499 INFO L130 BoogieDeclarations]: Found specification of procedure __vxge_hw_ring_rxdblock_link [2021-11-20 07:24:15,499 INFO L138 BoogieDeclarations]: Found implementation of procedure __vxge_hw_ring_rxdblock_link [2021-11-20 07:24:15,499 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_hw_ring_rxd_private_get [2021-11-20 07:24:15,499 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_hw_ring_rxd_private_get [2021-11-20 07:24:15,499 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-11-20 07:24:15,500 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-11-20 07:24:15,500 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2021-11-20 07:24:15,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2021-11-20 07:24:15,500 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_hw_vpath_dynamic_rti_rtimer_set [2021-11-20 07:24:15,500 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_hw_vpath_dynamic_rti_rtimer_set [2021-11-20 07:24:15,500 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-20 07:24:15,500 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-20 07:24:15,500 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_hw_channel_dtr_post [2021-11-20 07:24:15,500 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_hw_channel_dtr_post [2021-11-20 07:24:15,501 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2021-11-20 07:24:15,501 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2021-11-20 07:24:15,501 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-20 07:24:15,501 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_free_mac_add_list [2021-11-20 07:24:15,501 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_free_mac_add_list [2021-11-20 07:24:15,501 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-20 07:24:15,501 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-20 07:24:15,501 INFO L130 BoogieDeclarations]: Found specification of procedure __vxge_hw_fifo_delete [2021-11-20 07:24:15,502 INFO L138 BoogieDeclarations]: Found implementation of procedure __vxge_hw_fifo_delete [2021-11-20 07:24:15,506 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~TO~VOID [2021-11-20 07:24:15,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~TO~VOID [2021-11-20 07:24:15,506 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-20 07:24:15,506 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_hw_vpath_reset [2021-11-20 07:24:15,506 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_hw_vpath_reset [2021-11-20 07:24:15,507 INFO L130 BoogieDeclarations]: Found specification of procedure __vxge_hw_vpath_func_id_get [2021-11-20 07:24:15,507 INFO L138 BoogieDeclarations]: Found implementation of procedure __vxge_hw_vpath_func_id_get [2021-11-20 07:24:15,507 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_hw_vpath_open [2021-11-20 07:24:15,507 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_hw_vpath_open [2021-11-20 07:24:15,508 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_hw_vpath_intr_enable [2021-11-20 07:24:15,509 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_hw_vpath_intr_enable [2021-11-20 07:24:15,509 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-11-20 07:24:15,510 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-11-20 07:24:15,510 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2021-11-20 07:24:15,510 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2021-11-20 07:24:15,510 INFO L130 BoogieDeclarations]: Found specification of procedure __vxge_hw_device_vpath_reset_in_prog_check [2021-11-20 07:24:15,510 INFO L138 BoogieDeclarations]: Found implementation of procedure __vxge_hw_device_vpath_reset_in_prog_check [2021-11-20 07:24:15,510 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-20 07:24:15,510 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-20 07:24:15,510 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_hw_ring_replenish [2021-11-20 07:24:15,510 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_hw_ring_replenish [2021-11-20 07:24:15,511 INFO L130 BoogieDeclarations]: Found specification of procedure __vxge_hw_pio_mem_write64 [2021-11-20 07:24:15,511 INFO L138 BoogieDeclarations]: Found implementation of procedure __vxge_hw_pio_mem_write64 [2021-11-20 07:24:15,511 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dispatch_instance_register_12_2 [2021-11-20 07:24:15,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dispatch_instance_register_12_2 [2021-11-20 07:24:15,511 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_hw_vpath_poll_rx [2021-11-20 07:24:15,511 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_hw_vpath_poll_rx [2021-11-20 07:24:15,511 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-20 07:24:15,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-20 07:24:15,511 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_hw_ring_rxd_post_post [2021-11-20 07:24:15,511 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_hw_ring_rxd_post_post [2021-11-20 07:24:15,512 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_wake_all_queues [2021-11-20 07:24:15,512 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_wake_all_queues [2021-11-20 07:24:15,512 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_hw_device_terminate [2021-11-20 07:24:15,512 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_hw_device_terminate [2021-11-20 07:24:15,512 INFO L130 BoogieDeclarations]: Found specification of procedure __vxge_hw_mempool_create [2021-11-20 07:24:15,512 INFO L138 BoogieDeclarations]: Found implementation of procedure __vxge_hw_mempool_create [2021-11-20 07:24:15,512 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2021-11-20 07:24:15,512 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2021-11-20 07:24:15,512 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_io_resume [2021-11-20 07:24:15,512 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_io_resume [2021-11-20 07:24:15,513 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2021-11-20 07:24:15,513 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2021-11-20 07:24:15,513 INFO L130 BoogieDeclarations]: Found specification of procedure __vxge_hw_vpath_alarm_process [2021-11-20 07:24:15,513 INFO L138 BoogieDeclarations]: Found implementation of procedure __vxge_hw_vpath_alarm_process [2021-11-20 07:24:15,513 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_nonatomic [2021-11-20 07:24:15,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_nonatomic [2021-11-20 07:24:15,513 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2021-11-20 07:24:15,513 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2021-11-20 07:24:15,513 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_set_multicast [2021-11-20 07:24:15,513 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_set_multicast [2021-11-20 07:24:15,514 INFO L130 BoogieDeclarations]: Found specification of procedure pci_channel_offline [2021-11-20 07:24:15,514 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_channel_offline [2021-11-20 07:24:15,514 INFO L130 BoogieDeclarations]: Found specification of procedure synchronize_irq [2021-11-20 07:24:15,514 INFO L138 BoogieDeclarations]: Found implementation of procedure synchronize_irq [2021-11-20 07:24:15,514 INFO L130 BoogieDeclarations]: Found specification of procedure __vxge_hw_mempool_item_priv [2021-11-20 07:24:15,514 INFO L138 BoogieDeclarations]: Found implementation of procedure __vxge_hw_mempool_item_priv [2021-11-20 07:24:15,514 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-20 07:24:15,514 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-20 07:24:15,514 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_set_features [2021-11-20 07:24:15,514 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_set_features [2021-11-20 07:24:15,515 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-20 07:24:15,515 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-20 07:24:15,515 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-20 07:24:15,515 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_85 [2021-11-20 07:24:15,515 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_85 [2021-11-20 07:24:15,515 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_os_dma_malloc [2021-11-20 07:24:15,515 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_os_dma_malloc [2021-11-20 07:24:15,515 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_hw_vpath_msix_set [2021-11-20 07:24:15,515 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_hw_vpath_msix_set [2021-11-20 07:24:15,515 INFO L130 BoogieDeclarations]: Found specification of procedure u64_stats_fetch_retry_bh [2021-11-20 07:24:15,516 INFO L138 BoogieDeclarations]: Found implementation of procedure u64_stats_fetch_retry_bh [2021-11-20 07:24:15,516 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_hw_vpath_recover_from_reset [2021-11-20 07:24:15,516 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_hw_vpath_recover_from_reset [2021-11-20 07:24:15,516 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_hw_ring_rxd_1b_set [2021-11-20 07:24:15,516 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_hw_ring_rxd_1b_set [2021-11-20 07:24:15,516 INFO L130 BoogieDeclarations]: Found specification of procedure __vxge_hw_vpath_stats_access [2021-11-20 07:24:15,516 INFO L138 BoogieDeclarations]: Found implementation of procedure __vxge_hw_vpath_stats_access [2021-11-20 07:24:15,516 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_hw_device_flush_io [2021-11-20 07:24:15,516 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_hw_device_flush_io [2021-11-20 07:24:15,516 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2021-11-20 07:24:15,517 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2021-11-20 07:24:15,517 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_open [2021-11-20 07:24:15,517 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_open [2021-11-20 07:24:15,517 INFO L130 BoogieDeclarations]: Found specification of procedure __vxge_hw_fifo_txdl_priv [2021-11-20 07:24:15,517 INFO L138 BoogieDeclarations]: Found implementation of procedure __vxge_hw_fifo_txdl_priv [2021-11-20 07:24:15,517 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev_stop_18_2 [2021-11-20 07:24:15,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev_stop_18_2 [2021-11-20 07:24:15,517 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2021-11-20 07:24:15,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2021-11-20 07:24:15,517 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_interrupt_instance_handler_0_5 [2021-11-20 07:24:15,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_interrupt_instance_handler_0_5 [2021-11-20 07:24:15,518 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_close_vpaths [2021-11-20 07:24:15,518 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_close_vpaths [2021-11-20 07:24:15,518 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_hw_vpath_msix_unmask [2021-11-20 07:24:15,518 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_hw_vpath_msix_unmask [2021-11-20 07:24:15,518 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev_115 [2021-11-20 07:24:15,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev_115 [2021-11-20 07:24:15,518 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_restore_vpath_vid_table [2021-11-20 07:24:15,518 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_restore_vpath_vid_table [2021-11-20 07:24:15,518 INFO L130 BoogieDeclarations]: Found specification of procedure __vxge_hw_channel_initialize [2021-11-20 07:24:15,519 INFO L138 BoogieDeclarations]: Found implementation of procedure __vxge_hw_channel_initialize [2021-11-20 07:24:15,519 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_hw_fifo_txdl_next_completed [2021-11-20 07:24:15,519 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_hw_fifo_txdl_next_completed [2021-11-20 07:24:15,519 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_hw_channel_dtr_alloc [2021-11-20 07:24:15,519 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_hw_channel_dtr_alloc [2021-11-20 07:24:15,519 INFO L130 BoogieDeclarations]: Found specification of procedure __vxge_hw_vpath_reset [2021-11-20 07:24:15,519 INFO L138 BoogieDeclarations]: Found implementation of procedure __vxge_hw_vpath_reset [2021-11-20 07:24:15,519 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_open_vpaths [2021-11-20 07:24:15,519 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_open_vpaths [2021-11-20 07:24:15,520 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_wake_queue [2021-11-20 07:24:15,520 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_wake_queue [2021-11-20 07:24:15,520 INFO L130 BoogieDeclarations]: Found specification of procedure __vxge_hw_blockpool_destroy [2021-11-20 07:24:15,520 INFO L138 BoogieDeclarations]: Found implementation of procedure __vxge_hw_blockpool_destroy [2021-11-20 07:24:15,520 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_rx_map [2021-11-20 07:24:15,520 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_rx_map [2021-11-20 07:24:15,520 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-20 07:24:15,520 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-20 07:24:15,520 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_device_unregister [2021-11-20 07:24:15,520 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_device_unregister [2021-11-20 07:24:15,521 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_page [2021-11-20 07:24:15,521 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_page [2021-11-20 07:24:15,521 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-20 07:24:15,521 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-20 07:24:15,521 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_instance_callback_7_2 [2021-11-20 07:24:15,521 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_instance_callback_7_2 [2021-11-20 07:24:15,521 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_word [2021-11-20 07:24:15,521 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_word [2021-11-20 07:24:15,521 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-11-20 07:24:15,521 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-11-20 07:24:15,522 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_hw_ring_rxd_pre_post [2021-11-20 07:24:15,522 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_hw_ring_rxd_pre_post [2021-11-20 07:24:15,522 INFO L130 BoogieDeclarations]: Found specification of procedure netif_napi_del [2021-11-20 07:24:15,522 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_napi_del [2021-11-20 07:24:15,522 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2021-11-20 07:24:15,522 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2021-11-20 07:24:15,522 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_hw_vpath_rx_doorbell_init [2021-11-20 07:24:15,523 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_hw_vpath_rx_doorbell_init [2021-11-20 07:24:15,523 INFO L130 BoogieDeclarations]: Found specification of procedure __vxge_hw_vpath_stats_get [2021-11-20 07:24:15,523 INFO L138 BoogieDeclarations]: Found implementation of procedure __vxge_hw_vpath_stats_get [2021-11-20 07:24:15,523 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_pm_resume [2021-11-20 07:24:15,524 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_pm_resume [2021-11-20 07:24:15,524 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_timer_instance_7 [2021-11-20 07:24:15,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_timer_instance_7 [2021-11-20 07:24:15,524 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-20 07:24:15,524 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-20 07:24:15,524 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_poll_vp_lockup [2021-11-20 07:24:15,524 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_poll_vp_lockup [2021-11-20 07:24:15,524 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_hw_device_clear_tx_rx [2021-11-20 07:24:15,524 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_hw_device_clear_tx_rx [2021-11-20 07:24:15,524 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_hw_device_wait_receive_idle [2021-11-20 07:24:15,525 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_hw_device_wait_receive_idle [2021-11-20 07:24:15,525 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_vpath_intr_disable [2021-11-20 07:24:15,525 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_vpath_intr_disable [2021-11-20 07:24:15,525 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-20 07:24:15,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-20 07:24:15,525 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2021-11-20 07:24:15,525 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2021-11-20 07:24:15,525 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-20 07:24:15,525 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-20 07:24:15,525 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-20 07:24:15,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-20 07:24:15,526 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-20 07:24:15,526 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_queue_stopped [2021-11-20 07:24:15,526 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_queue_stopped [2021-11-20 07:24:15,526 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync [2021-11-20 07:24:15,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync [2021-11-20 07:24:15,526 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2021-11-20 07:24:15,526 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2021-11-20 07:24:15,526 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_del_mac_addr [2021-11-20 07:24:15,526 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_del_mac_addr [2021-11-20 07:24:15,526 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-20 07:24:15,527 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-20 07:24:15,527 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-20 07:24:15,527 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2021-11-20 07:24:15,527 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2021-11-20 07:24:15,527 INFO L130 BoogieDeclarations]: Found specification of procedure __vxge_hw_device_toc_get [2021-11-20 07:24:15,527 INFO L138 BoogieDeclarations]: Found implementation of procedure __vxge_hw_device_toc_get [2021-11-20 07:24:15,527 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_ethtool_gset [2021-11-20 07:24:15,527 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_ethtool_gset [2021-11-20 07:24:15,527 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_mac_list_del [2021-11-20 07:24:15,527 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_mac_list_del [2021-11-20 07:24:15,528 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2021-11-20 07:24:15,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2021-11-20 07:24:15,528 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-11-20 07:24:15,528 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-11-20 07:24:15,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-20 07:24:15,528 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_hw_vpath_alarm_process [2021-11-20 07:24:15,528 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_hw_vpath_alarm_process [2021-11-20 07:24:15,528 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-20 07:24:15,528 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-20 07:24:15,528 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2021-11-20 07:24:15,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2021-11-20 07:24:15,529 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-20 07:24:15,529 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-20 07:24:15,529 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-20 07:24:15,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-20 07:24:15,529 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_net_dummy_resourceless_instance_4 [2021-11-20 07:24:15,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_net_dummy_resourceless_instance_4 [2021-11-20 07:24:15,529 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_hw_fifo_txdl_private_get [2021-11-20 07:24:15,529 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_hw_fifo_txdl_private_get [2021-11-20 07:24:15,529 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_hw_vpath_tti_ci_set [2021-11-20 07:24:15,529 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_hw_vpath_tti_ci_set [2021-11-20 07:24:15,530 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-20 07:24:15,530 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-20 07:24:15,530 INFO L130 BoogieDeclarations]: Found specification of procedure VXGE_COMPLETE_ALL_TX [2021-11-20 07:24:15,530 INFO L138 BoogieDeclarations]: Found implementation of procedure VXGE_COMPLETE_ALL_TX [2021-11-20 07:24:15,530 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-20 07:24:15,530 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-20 07:24:15,530 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_interrupt_interrupt_instance_1 [2021-11-20 07:24:15,530 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_interrupt_interrupt_instance_1 [2021-11-20 07:24:15,530 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_interrupt_interrupt_instance_2 [2021-11-20 07:24:15,530 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_interrupt_interrupt_instance_2 [2021-11-20 07:24:15,530 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_interrupt_interrupt_instance_3 [2021-11-20 07:24:15,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_interrupt_interrupt_instance_3 [2021-11-20 07:24:15,531 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2021-11-20 07:24:15,531 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2021-11-20 07:24:15,531 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_hw_device_intr_disable [2021-11-20 07:24:15,531 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_hw_device_intr_disable [2021-11-20 07:24:15,531 INFO L130 BoogieDeclarations]: Found specification of procedure __vxge_hw_blockpool_blocks_add [2021-11-20 07:24:15,531 INFO L138 BoogieDeclarations]: Found implementation of procedure __vxge_hw_blockpool_blocks_add [2021-11-20 07:24:15,531 INFO L130 BoogieDeclarations]: Found specification of procedure __vxge_hw_channel_reset [2021-11-20 07:24:15,531 INFO L138 BoogieDeclarations]: Found implementation of procedure __vxge_hw_channel_reset [2021-11-20 07:24:15,531 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_restore_vpath_mac_addr [2021-11-20 07:24:15,532 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_restore_vpath_mac_addr [2021-11-20 07:24:15,532 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_hw_channel_msix_unmask [2021-11-20 07:24:15,532 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_hw_channel_msix_unmask [2021-11-20 07:24:15,532 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_interrupt_interrupt_instance_0 [2021-11-20 07:24:15,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_interrupt_interrupt_instance_0 [2021-11-20 07:24:15,532 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_hw_vpath_mcast_enable [2021-11-20 07:24:15,532 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_hw_vpath_mcast_enable [2021-11-20 07:24:15,532 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2021-11-20 07:24:15,532 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2021-11-20 07:24:15,532 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_poll_vp_reset [2021-11-20 07:24:15,532 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_poll_vp_reset [2021-11-20 07:24:15,533 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-20 07:24:15,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-20 07:24:15,533 INFO L130 BoogieDeclarations]: Found specification of procedure __vxge_hw_vpath_rts_table_get [2021-11-20 07:24:15,533 INFO L138 BoogieDeclarations]: Found implementation of procedure __vxge_hw_vpath_rts_table_get [2021-11-20 07:24:15,533 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2021-11-20 07:24:15,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2021-11-20 07:24:15,533 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2021-11-20 07:24:15,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2021-11-20 07:24:15,533 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_change_mtu [2021-11-20 07:24:15,533 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_change_mtu [2021-11-20 07:24:15,534 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_hw_vpath_msix_mask [2021-11-20 07:24:15,534 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_hw_vpath_msix_mask [2021-11-20 07:24:15,534 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_hw_vpath_vid_add [2021-11-20 07:24:15,534 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_hw_vpath_vid_add [2021-11-20 07:24:15,534 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_config_ci_for_tti_rti [2021-11-20 07:24:15,534 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_config_ci_for_tti_rti [2021-11-20 07:24:15,534 INFO L130 BoogieDeclarations]: Found specification of procedure __vxge_hw_vpath_prc_configure [2021-11-20 07:24:15,534 INFO L138 BoogieDeclarations]: Found implementation of procedure __vxge_hw_vpath_prc_configure [2021-11-20 07:24:15,534 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2021-11-20 07:24:15,534 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2021-11-20 07:24:15,535 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_alarm_msix_handle [2021-11-20 07:24:15,535 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_alarm_msix_handle [2021-11-20 07:24:15,535 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-11-20 07:24:15,535 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-11-20 07:24:15,535 INFO L130 BoogieDeclarations]: Found specification of procedure u64_stats_fetch_begin_bh [2021-11-20 07:24:15,535 INFO L138 BoogieDeclarations]: Found implementation of procedure u64_stats_fetch_begin_bh [2021-11-20 07:24:15,535 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2021-11-20 07:24:15,535 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2021-11-20 07:24:15,535 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_rx_alloc [2021-11-20 07:24:15,535 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_rx_alloc [2021-11-20 07:24:15,535 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-11-20 07:24:15,536 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-11-20 07:24:15,539 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_callback_link_up [2021-11-20 07:24:15,539 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_callback_link_up [2021-11-20 07:24:15,540 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_fw_flash [2021-11-20 07:24:15,540 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_fw_flash [2021-11-20 07:24:15,540 INFO L130 BoogieDeclarations]: Found specification of procedure writeq [2021-11-20 07:24:15,540 INFO L138 BoogieDeclarations]: Found implementation of procedure writeq [2021-11-20 07:24:15,540 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_hw_ring_rxd_next_completed [2021-11-20 07:24:15,540 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_hw_ring_rxd_next_completed [2021-11-20 07:24:15,540 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_add_isr [2021-11-20 07:24:15,540 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_add_isr [2021-11-20 07:24:15,540 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_hw_vpath_bcast_enable [2021-11-20 07:24:15,540 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_hw_vpath_bcast_enable [2021-11-20 07:24:15,541 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_hw_channel_msix_mask [2021-11-20 07:24:15,541 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_hw_channel_msix_mask [2021-11-20 07:24:15,541 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-20 07:24:15,541 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-20 07:24:15,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-20 07:24:15,541 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_tx_watchdog [2021-11-20 07:24:15,541 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_tx_watchdog [2021-11-20 07:24:15,541 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2021-11-20 07:24:15,541 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2021-11-20 07:24:15,541 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_region [2021-11-20 07:24:15,542 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_region [2021-11-20 07:24:15,542 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2021-11-20 07:24:15,542 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2021-11-20 07:24:15,542 INFO L130 BoogieDeclarations]: Found specification of procedure u64_stats_update_begin [2021-11-20 07:24:15,542 INFO L138 BoogieDeclarations]: Found implementation of procedure u64_stats_update_begin [2021-11-20 07:24:15,542 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_all_queues [2021-11-20 07:24:15,542 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_all_queues [2021-11-20 07:24:15,542 INFO L130 BoogieDeclarations]: Found specification of procedure __vxge_hw_blockpool_blocks_remove [2021-11-20 07:24:15,542 INFO L138 BoogieDeclarations]: Found implementation of procedure __vxge_hw_blockpool_blocks_remove [2021-11-20 07:24:15,542 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_hw_vpath_dynamic_tti_rtimer_set [2021-11-20 07:24:15,543 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_hw_vpath_dynamic_tti_rtimer_set [2021-11-20 07:24:15,543 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2021-11-20 07:24:15,543 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2021-11-20 07:24:15,543 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_remove [2021-11-20 07:24:15,543 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_remove [2021-11-20 07:24:15,543 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_hw_device_debug_set [2021-11-20 07:24:15,543 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_hw_device_debug_set [2021-11-20 07:24:15,543 INFO L130 BoogieDeclarations]: Found specification of procedure do_vxge_close [2021-11-20 07:24:15,543 INFO L138 BoogieDeclarations]: Found implementation of procedure do_vxge_close [2021-11-20 07:24:15,543 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-11-20 07:24:15,544 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-11-20 07:24:15,544 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2021-11-20 07:24:15,544 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2021-11-20 07:24:15,544 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-11-20 07:24:15,544 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-11-20 07:24:15,544 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_netdev_113 [2021-11-20 07:24:15,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_netdev_113 [2021-11-20 07:24:15,544 INFO L130 BoogieDeclarations]: Found specification of procedure __vxge_hw_device_register_poll [2021-11-20 07:24:15,544 INFO L138 BoogieDeclarations]: Found implementation of procedure __vxge_hw_device_register_poll [2021-11-20 07:24:15,544 INFO L130 BoogieDeclarations]: Found specification of procedure __vxge_hw_channel_free [2021-11-20 07:24:15,545 INFO L138 BoogieDeclarations]: Found implementation of procedure __vxge_hw_channel_free [2021-11-20 07:24:15,545 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_netpoll [2021-11-20 07:24:15,545 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_netpoll [2021-11-20 07:24:15,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-20 07:24:15,545 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2021-11-20 07:24:15,545 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2021-11-20 07:24:15,545 INFO L130 BoogieDeclarations]: Found specification of procedure __vxge_hw_fifo_abort [2021-11-20 07:24:15,545 INFO L138 BoogieDeclarations]: Found implementation of procedure __vxge_hw_fifo_abort [2021-11-20 07:24:15,545 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2021-11-20 07:24:15,545 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2021-11-20 07:24:15,545 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq [2021-11-20 07:24:15,546 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq [2021-11-20 07:24:15,546 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-20 07:24:15,546 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-20 07:24:15,546 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2021-11-20 07:24:15,546 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2021-11-20 07:24:15,546 INFO L130 BoogieDeclarations]: Found specification of procedure __vxge_hw_device_is_privilaged [2021-11-20 07:24:15,546 INFO L138 BoogieDeclarations]: Found implementation of procedure __vxge_hw_device_is_privilaged [2021-11-20 07:24:15,546 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_interrupt_instance_handler_1_5 [2021-11-20 07:24:15,546 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_interrupt_instance_handler_1_5 [2021-11-20 07:24:15,546 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_84 [2021-11-20 07:24:15,547 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_84 [2021-11-20 07:24:15,547 INFO L130 BoogieDeclarations]: Found specification of procedure __vxge_hw_vp_terminate [2021-11-20 07:24:15,547 INFO L138 BoogieDeclarations]: Found implementation of procedure __vxge_hw_vp_terminate [2021-11-20 07:24:15,547 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-11-20 07:24:15,547 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-11-20 07:24:15,547 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-20 07:24:15,547 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-20 07:24:15,547 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2021-11-20 07:24:15,547 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2021-11-20 07:24:15,547 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_hw_ring_rxd_post_post_wmb [2021-11-20 07:24:15,548 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_hw_ring_rxd_post_post_wmb [2021-11-20 07:24:15,548 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_hw_vpath_fw_api [2021-11-20 07:24:15,548 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_hw_vpath_fw_api [2021-11-20 07:24:15,548 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-20 07:24:15,548 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-20 07:24:15,548 INFO L130 BoogieDeclarations]: Found specification of procedure __vxge_hw_vpath_initialize [2021-11-20 07:24:15,548 INFO L138 BoogieDeclarations]: Found implementation of procedure __vxge_hw_vpath_initialize [2021-11-20 07:24:15,548 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_hw_device_flick_link_led [2021-11-20 07:24:15,548 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_hw_device_flick_link_led [2021-11-20 07:24:15,548 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_hw_rts_rth_data0_data1_get [2021-11-20 07:24:15,549 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_hw_rts_rth_data0_data1_get [2021-11-20 07:24:15,549 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~$Pointer$~TO~int [2021-11-20 07:24:15,549 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~$Pointer$~TO~int [2021-11-20 07:24:15,549 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_reset_vpath [2021-11-20 07:24:15,549 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_reset_vpath [2021-11-20 07:24:15,549 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-11-20 07:24:15,549 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-11-20 07:24:15,549 INFO L130 BoogieDeclarations]: Found specification of procedure is_multicast_ether_addr [2021-11-20 07:24:15,549 INFO L138 BoogieDeclarations]: Found implementation of procedure is_multicast_ether_addr [2021-11-20 07:24:15,549 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_ethtool_get_regs_len [2021-11-20 07:24:15,550 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_ethtool_get_regs_len [2021-11-20 07:24:15,550 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2021-11-20 07:24:15,550 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2021-11-20 07:24:15,550 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_reset [2021-11-20 07:24:15,550 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_reset [2021-11-20 07:24:15,550 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_hw_channel_dtr_complete [2021-11-20 07:24:15,550 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_hw_channel_dtr_complete [2021-11-20 07:24:15,550 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab64 [2021-11-20 07:24:15,550 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab64 [2021-11-20 07:24:15,550 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_os_timer [2021-11-20 07:24:15,551 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_os_timer [2021-11-20 07:24:15,551 INFO L130 BoogieDeclarations]: Found specification of procedure __vxge_hw_ring_reset [2021-11-20 07:24:15,551 INFO L138 BoogieDeclarations]: Found implementation of procedure __vxge_hw_ring_reset [2021-11-20 07:24:15,551 INFO L130 BoogieDeclarations]: Found specification of procedure __vxge_hw_vpath_xmac_rx_stats_get [2021-11-20 07:24:15,551 INFO L138 BoogieDeclarations]: Found implementation of procedure __vxge_hw_vpath_xmac_rx_stats_get [2021-11-20 07:24:15,551 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-20 07:24:15,551 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-20 07:24:15,551 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_hw_device_begin_irq [2021-11-20 07:24:15,551 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_hw_device_begin_irq [2021-11-20 07:24:15,551 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_hw_channel_dtr_free [2021-11-20 07:24:15,552 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_hw_channel_dtr_free [2021-11-20 07:24:15,552 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dispatch_register_13_4 [2021-11-20 07:24:15,552 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dispatch_register_13_4 [2021-11-20 07:24:15,552 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-20 07:24:15,552 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-20 07:24:15,552 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-11-20 07:24:15,552 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-11-20 07:24:15,552 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_callback_crit_err [2021-11-20 07:24:15,552 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_callback_crit_err [2021-11-20 07:24:15,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-20 07:24:15,553 INFO L130 BoogieDeclarations]: Found specification of procedure readq [2021-11-20 07:24:15,553 INFO L138 BoogieDeclarations]: Found implementation of procedure readq [2021-11-20 07:24:15,553 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-20 07:24:15,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-20 07:24:15,553 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2021-11-20 07:24:15,553 INFO L130 BoogieDeclarations]: Found specification of procedure preempt_count [2021-11-20 07:24:15,553 INFO L138 BoogieDeclarations]: Found implementation of procedure preempt_count [2021-11-20 07:24:17,724 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 07:24:17,741 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 07:24:23,903 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-20 07:31:23,864 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 07:31:23,914 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 07:31:23,915 INFO L301 CfgBuilder]: Removed 11 assume(true) statements. [2021-11-20 07:31:23,923 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:31:23 BoogieIcfgContainer [2021-11-20 07:31:23,924 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 07:31:23,926 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 07:31:23,926 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 07:31:23,930 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 07:31:23,930 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 07:24:01" (1/3) ... [2021-11-20 07:31:23,931 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5590e734 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:31:23, skipping insertion in model container [2021-11-20 07:31:23,931 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:24:13" (2/3) ... [2021-11-20 07:31:23,932 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5590e734 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:31:23, skipping insertion in model container [2021-11-20 07:31:23,932 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:31:23" (3/3) ... [2021-11-20 07:31:23,933 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-neterion-vxge-vxge.cil.i [2021-11-20 07:31:23,939 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 07:31:23,940 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-20 07:31:24,019 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 07:31:24,026 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-20 07:31:24,027 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-20 07:31:24,154 INFO L276 IsEmpty]: Start isEmpty. Operand has 5965 states, 4219 states have (on average 1.327091727897606) internal successors, (5599), 4318 states have internal predecessors, (5599), 1430 states have call successors, (1430), 316 states have call predecessors, (1430), 315 states have return successors, (1423), 1396 states have call predecessors, (1423), 1423 states have call successors, (1423) [2021-11-20 07:31:24,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-20 07:31:24,159 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:31:24,160 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:31:24,161 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:31:24,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:31:24,166 INFO L85 PathProgramCache]: Analyzing trace with hash 1829823295, now seen corresponding path program 1 times [2021-11-20 07:31:24,175 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:31:24,176 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781771728] [2021-11-20 07:31:24,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:31:24,177 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:31:24,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:31:25,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-11-20 07:31:25,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:31:25,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:31:25,351 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:31:25,351 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781771728] [2021-11-20 07:31:25,351 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1781771728] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:31:25,352 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:31:25,352 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 07:31:25,354 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000120193] [2021-11-20 07:31:25,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:31:25,359 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 07:31:25,359 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:31:25,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 07:31:25,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 07:31:25,416 INFO L87 Difference]: Start difference. First operand has 5965 states, 4219 states have (on average 1.327091727897606) internal successors, (5599), 4318 states have internal predecessors, (5599), 1430 states have call successors, (1430), 316 states have call predecessors, (1430), 315 states have return successors, (1423), 1396 states have call predecessors, (1423), 1423 states have call successors, (1423) Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 07:31:26,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:31:26,258 INFO L93 Difference]: Finished difference Result 12072 states and 17433 transitions. [2021-11-20 07:31:26,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 07:31:26,261 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 20 [2021-11-20 07:31:26,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:31:26,349 INFO L225 Difference]: With dead ends: 12072 [2021-11-20 07:31:26,349 INFO L226 Difference]: Without dead ends: 5970 [2021-11-20 07:31:26,410 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 07:31:26,414 INFO L933 BasicCegarLoop]: 8529 mSDtfsCounter, 164 mSDsluCounter, 8382 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 16911 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-20 07:31:26,415 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [216 Valid, 16911 Invalid, 37 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-20 07:31:26,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5970 states. [2021-11-20 07:31:26,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5970 to 5859. [2021-11-20 07:31:26,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5859 states, 4155 states have (on average 1.3200962695547533) internal successors, (5485), 4245 states have internal predecessors, (5485), 1388 states have call successors, (1388), 314 states have call predecessors, (1388), 314 states have return successors, (1388), 1361 states have call predecessors, (1388), 1388 states have call successors, (1388) [2021-11-20 07:31:26,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5859 states to 5859 states and 8261 transitions. [2021-11-20 07:31:26,912 INFO L78 Accepts]: Start accepts. Automaton has 5859 states and 8261 transitions. Word has length 20 [2021-11-20 07:31:26,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:31:26,912 INFO L470 AbstractCegarLoop]: Abstraction has 5859 states and 8261 transitions. [2021-11-20 07:31:26,913 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 07:31:26,913 INFO L276 IsEmpty]: Start isEmpty. Operand 5859 states and 8261 transitions. [2021-11-20 07:31:26,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-20 07:31:26,916 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:31:26,916 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:31:26,917 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-20 07:31:26,917 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:31:26,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:31:26,920 INFO L85 PathProgramCache]: Analyzing trace with hash 311939680, now seen corresponding path program 1 times [2021-11-20 07:31:26,921 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:31:26,922 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258879013] [2021-11-20 07:31:26,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:31:26,922 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:31:27,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:31:27,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-11-20 07:31:27,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:31:27,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:31:27,660 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:31:27,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258879013] [2021-11-20 07:31:27,665 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1258879013] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:31:27,666 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:31:27,666 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 07:31:27,667 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555587482] [2021-11-20 07:31:27,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:31:27,668 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 07:31:27,669 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:31:27,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 07:31:27,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 07:31:27,670 INFO L87 Difference]: Start difference. First operand 5859 states and 8261 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 07:31:28,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:31:28,075 INFO L93 Difference]: Finished difference Result 11820 states and 16673 transitions. [2021-11-20 07:31:28,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 07:31:28,076 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 22 [2021-11-20 07:31:28,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:31:28,142 INFO L225 Difference]: With dead ends: 11820 [2021-11-20 07:31:28,142 INFO L226 Difference]: Without dead ends: 5972 [2021-11-20 07:31:28,177 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 07:31:28,179 INFO L933 BasicCegarLoop]: 8271 mSDtfsCounter, 95 mSDsluCounter, 8226 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 16497 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 07:31:28,179 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [129 Valid, 16497 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-20 07:31:28,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5972 states. [2021-11-20 07:31:28,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5972 to 5858. [2021-11-20 07:31:28,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5858 states, 4154 states have (on average 1.3194511314395763) internal successors, (5481), 4244 states have internal predecessors, (5481), 1388 states have call successors, (1388), 314 states have call predecessors, (1388), 314 states have return successors, (1388), 1361 states have call predecessors, (1388), 1388 states have call successors, (1388) [2021-11-20 07:31:28,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5858 states to 5858 states and 8257 transitions. [2021-11-20 07:31:28,506 INFO L78 Accepts]: Start accepts. Automaton has 5858 states and 8257 transitions. Word has length 22 [2021-11-20 07:31:28,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:31:28,507 INFO L470 AbstractCegarLoop]: Abstraction has 5858 states and 8257 transitions. [2021-11-20 07:31:28,507 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 07:31:28,507 INFO L276 IsEmpty]: Start isEmpty. Operand 5858 states and 8257 transitions. [2021-11-20 07:31:28,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-20 07:31:28,509 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:31:28,509 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:31:28,509 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-20 07:31:28,509 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:31:28,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:31:28,510 INFO L85 PathProgramCache]: Analyzing trace with hash 948512808, now seen corresponding path program 1 times [2021-11-20 07:31:28,510 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:31:28,510 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911676530] [2021-11-20 07:31:28,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:31:28,511 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:31:28,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:31:29,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-20 07:31:29,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:31:29,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:31:29,080 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:31:29,080 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911676530] [2021-11-20 07:31:29,081 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1911676530] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:31:29,081 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:31:29,081 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 07:31:29,081 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718066101] [2021-11-20 07:31:29,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:31:29,082 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 07:31:29,082 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:31:29,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 07:31:29,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 07:31:29,083 INFO L87 Difference]: Start difference. First operand 5858 states and 8257 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 07:31:29,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:31:29,542 INFO L93 Difference]: Finished difference Result 11684 states and 16465 transitions. [2021-11-20 07:31:29,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 07:31:29,543 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 23 [2021-11-20 07:31:29,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:31:29,600 INFO L225 Difference]: With dead ends: 11684 [2021-11-20 07:31:29,600 INFO L226 Difference]: Without dead ends: 5860 [2021-11-20 07:31:29,635 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 07:31:29,640 INFO L933 BasicCegarLoop]: 8238 mSDtfsCounter, 1 mSDsluCounter, 8218 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 16456 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 07:31:29,643 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 16456 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-20 07:31:29,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5860 states. [2021-11-20 07:31:29,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5860 to 5859. [2021-11-20 07:31:29,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5859 states, 4155 states have (on average 1.3193742478941035) internal successors, (5482), 4245 states have internal predecessors, (5482), 1388 states have call successors, (1388), 314 states have call predecessors, (1388), 314 states have return successors, (1388), 1361 states have call predecessors, (1388), 1388 states have call successors, (1388) [2021-11-20 07:31:29,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5859 states to 5859 states and 8258 transitions. [2021-11-20 07:31:29,951 INFO L78 Accepts]: Start accepts. Automaton has 5859 states and 8258 transitions. Word has length 23 [2021-11-20 07:31:29,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:31:29,952 INFO L470 AbstractCegarLoop]: Abstraction has 5859 states and 8258 transitions. [2021-11-20 07:31:29,953 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 07:31:29,953 INFO L276 IsEmpty]: Start isEmpty. Operand 5859 states and 8258 transitions. [2021-11-20 07:31:29,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-20 07:31:29,955 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:31:29,955 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:31:29,956 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-20 07:31:29,956 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:31:29,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:31:29,957 INFO L85 PathProgramCache]: Analyzing trace with hash -1280170204, now seen corresponding path program 1 times [2021-11-20 07:31:29,957 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:31:29,957 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944244175] [2021-11-20 07:31:29,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:31:29,958 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:31:30,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:31:30,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-20 07:31:30,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:31:30,532 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:31:30,532 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:31:30,532 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944244175] [2021-11-20 07:31:30,533 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [944244175] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 07:31:30,535 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [352180178] [2021-11-20 07:31:30,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:31:30,536 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 07:31:30,536 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_360af17b-888d-4aac-8f82-1204e0591448/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:31:30,542 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_360af17b-888d-4aac-8f82-1204e0591448/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 07:31:30,566 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_360af17b-888d-4aac-8f82-1204e0591448/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-20 07:31:32,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:31:32,717 INFO L263 TraceCheckSpWp]: Trace formula consists of 4933 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-20 07:31:32,727 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:31:33,007 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-20 07:31:33,007 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 07:31:33,008 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [352180178] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:31:33,008 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 07:31:33,008 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2021-11-20 07:31:33,008 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107341428] [2021-11-20 07:31:33,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:31:33,009 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 07:31:33,009 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:31:33,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 07:31:33,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-20 07:31:33,010 INFO L87 Difference]: Start difference. First operand 5859 states and 8258 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 07:31:33,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:31:33,581 INFO L93 Difference]: Finished difference Result 17483 states and 25078 transitions. [2021-11-20 07:31:33,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 07:31:33,582 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25 [2021-11-20 07:31:33,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:31:33,692 INFO L225 Difference]: With dead ends: 17483 [2021-11-20 07:31:33,693 INFO L226 Difference]: Without dead ends: 11661 [2021-11-20 07:31:33,739 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-20 07:31:33,740 INFO L933 BasicCegarLoop]: 9866 mSDtfsCounter, 8311 mSDsluCounter, 8263 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8311 SdHoareTripleChecker+Valid, 18129 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 07:31:33,741 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8311 Valid, 18129 Invalid, 5 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 07:31:33,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11661 states. [2021-11-20 07:31:34,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11661 to 11656. [2021-11-20 07:31:34,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11656 states, 8258 states have (on average 1.3189634294017922) internal successors, (10892), 8437 states have internal predecessors, (10892), 2768 states have call successors, (2768), 628 states have call predecessors, (2768), 628 states have return successors, (2954), 2713 states have call predecessors, (2954), 2768 states have call successors, (2954) [2021-11-20 07:31:34,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11656 states to 11656 states and 16614 transitions. [2021-11-20 07:31:34,359 INFO L78 Accepts]: Start accepts. Automaton has 11656 states and 16614 transitions. Word has length 25 [2021-11-20 07:31:34,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:31:34,359 INFO L470 AbstractCegarLoop]: Abstraction has 11656 states and 16614 transitions. [2021-11-20 07:31:34,360 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 07:31:34,360 INFO L276 IsEmpty]: Start isEmpty. Operand 11656 states and 16614 transitions. [2021-11-20 07:31:34,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-20 07:31:34,361 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:31:34,361 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:31:34,415 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_360af17b-888d-4aac-8f82-1204e0591448/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-20 07:31:34,577 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_360af17b-888d-4aac-8f82-1204e0591448/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 07:31:34,577 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:31:34,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:31:34,578 INFO L85 PathProgramCache]: Analyzing trace with hash -587276320, now seen corresponding path program 1 times [2021-11-20 07:31:34,578 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:31:34,578 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464470717] [2021-11-20 07:31:34,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:31:34,579 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:31:34,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:31:35,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-20 07:31:35,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:31:35,124 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:31:35,125 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:31:35,125 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464470717] [2021-11-20 07:31:35,125 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1464470717] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 07:31:35,126 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019025518] [2021-11-20 07:31:35,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:31:35,126 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 07:31:35,126 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_360af17b-888d-4aac-8f82-1204e0591448/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:31:35,127 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_360af17b-888d-4aac-8f82-1204e0591448/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 07:31:35,151 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_360af17b-888d-4aac-8f82-1204e0591448/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-20 07:31:37,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:31:37,390 INFO L263 TraceCheckSpWp]: Trace formula consists of 4934 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-20 07:31:37,396 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:31:37,669 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-20 07:31:37,670 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 07:31:37,670 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2019025518] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:31:37,670 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 07:31:37,671 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2021-11-20 07:31:37,671 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055572324] [2021-11-20 07:31:37,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:31:37,672 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 07:31:37,672 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:31:37,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 07:31:37,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-20 07:31:37,673 INFO L87 Difference]: Start difference. First operand 11656 states and 16614 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 2 states have internal predecessors, (22), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 07:31:38,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:31:38,231 INFO L93 Difference]: Finished difference Result 23275 states and 33691 transitions. [2021-11-20 07:31:38,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 07:31:38,232 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 2 states have internal predecessors, (22), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 26 [2021-11-20 07:31:38,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:31:38,307 INFO L225 Difference]: With dead ends: 23275 [2021-11-20 07:31:38,307 INFO L226 Difference]: Without dead ends: 11656 [2021-11-20 07:31:38,375 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-20 07:31:38,376 INFO L933 BasicCegarLoop]: 8238 mSDtfsCounter, 8219 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8219 SdHoareTripleChecker+Valid, 8238 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 07:31:38,377 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8219 Valid, 8238 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 07:31:38,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11656 states. [2021-11-20 07:31:38,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11656 to 11656. [2021-11-20 07:31:38,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11656 states, 8258 states have (on average 1.3187212400096875) internal successors, (10890), 8437 states have internal predecessors, (10890), 2768 states have call successors, (2768), 628 states have call predecessors, (2768), 628 states have return successors, (2954), 2713 states have call predecessors, (2954), 2768 states have call successors, (2954) [2021-11-20 07:31:38,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11656 states to 11656 states and 16612 transitions. [2021-11-20 07:31:38,956 INFO L78 Accepts]: Start accepts. Automaton has 11656 states and 16612 transitions. Word has length 26 [2021-11-20 07:31:38,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:31:38,956 INFO L470 AbstractCegarLoop]: Abstraction has 11656 states and 16612 transitions. [2021-11-20 07:31:38,956 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 2 states have internal predecessors, (22), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 07:31:38,957 INFO L276 IsEmpty]: Start isEmpty. Operand 11656 states and 16612 transitions. [2021-11-20 07:31:38,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-20 07:31:38,958 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:31:38,958 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:31:39,009 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_360af17b-888d-4aac-8f82-1204e0591448/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-20 07:31:39,186 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_360af17b-888d-4aac-8f82-1204e0591448/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 07:31:39,186 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:31:39,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:31:39,186 INFO L85 PathProgramCache]: Analyzing trace with hash -467885792, now seen corresponding path program 1 times [2021-11-20 07:31:39,187 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:31:39,187 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024487966] [2021-11-20 07:31:39,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:31:39,187 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:31:39,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:31:39,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-20 07:31:39,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:31:39,677 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:31:39,677 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:31:39,677 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024487966] [2021-11-20 07:31:39,678 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1024487966] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 07:31:39,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [552811106] [2021-11-20 07:31:39,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:31:39,678 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 07:31:39,678 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_360af17b-888d-4aac-8f82-1204e0591448/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:31:39,679 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_360af17b-888d-4aac-8f82-1204e0591448/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 07:31:39,697 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_360af17b-888d-4aac-8f82-1204e0591448/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-20 07:31:41,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:31:41,721 INFO L263 TraceCheckSpWp]: Trace formula consists of 4935 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-20 07:31:41,725 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:31:41,984 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-20 07:31:41,984 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 07:31:41,984 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [552811106] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:31:41,984 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 07:31:41,985 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2021-11-20 07:31:41,985 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528384809] [2021-11-20 07:31:41,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:31:41,985 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 07:31:41,986 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:31:41,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 07:31:41,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-20 07:31:41,987 INFO L87 Difference]: Start difference. First operand 11656 states and 16612 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 07:31:42,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:31:42,507 INFO L93 Difference]: Finished difference Result 23275 states and 33687 transitions. [2021-11-20 07:31:42,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 07:31:42,507 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 27 [2021-11-20 07:31:42,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:31:42,586 INFO L225 Difference]: With dead ends: 23275 [2021-11-20 07:31:42,587 INFO L226 Difference]: Without dead ends: 11656 [2021-11-20 07:31:42,651 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-20 07:31:42,653 INFO L933 BasicCegarLoop]: 8237 mSDtfsCounter, 8217 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8217 SdHoareTripleChecker+Valid, 8237 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 07:31:42,653 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8217 Valid, 8237 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 07:31:42,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11656 states. [2021-11-20 07:31:43,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11656 to 11656. [2021-11-20 07:31:43,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11656 states, 8258 states have (on average 1.318479050617583) internal successors, (10888), 8437 states have internal predecessors, (10888), 2768 states have call successors, (2768), 628 states have call predecessors, (2768), 628 states have return successors, (2954), 2713 states have call predecessors, (2954), 2768 states have call successors, (2954) [2021-11-20 07:31:43,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11656 states to 11656 states and 16610 transitions. [2021-11-20 07:31:43,247 INFO L78 Accepts]: Start accepts. Automaton has 11656 states and 16610 transitions. Word has length 27 [2021-11-20 07:31:43,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:31:43,247 INFO L470 AbstractCegarLoop]: Abstraction has 11656 states and 16610 transitions. [2021-11-20 07:31:43,248 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 07:31:43,248 INFO L276 IsEmpty]: Start isEmpty. Operand 11656 states and 16610 transitions. [2021-11-20 07:31:43,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-20 07:31:43,253 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:31:43,253 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:31:43,303 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_360af17b-888d-4aac-8f82-1204e0591448/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-20 07:31:43,466 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_360af17b-888d-4aac-8f82-1204e0591448/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 07:31:43,466 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:31:43,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:31:43,467 INFO L85 PathProgramCache]: Analyzing trace with hash -947230116, now seen corresponding path program 1 times [2021-11-20 07:31:43,467 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:31:43,467 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737087238] [2021-11-20 07:31:43,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:31:43,467 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:31:43,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:31:43,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-20 07:31:43,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:31:43,921 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:31:43,922 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:31:43,922 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737087238] [2021-11-20 07:31:43,922 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1737087238] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 07:31:43,922 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1803609643] [2021-11-20 07:31:43,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:31:43,923 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 07:31:43,923 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_360af17b-888d-4aac-8f82-1204e0591448/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:31:43,924 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_360af17b-888d-4aac-8f82-1204e0591448/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 07:31:43,944 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_360af17b-888d-4aac-8f82-1204e0591448/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-20 07:31:45,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:31:45,776 INFO L263 TraceCheckSpWp]: Trace formula consists of 4936 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-20 07:31:45,780 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:31:46,086 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-20 07:31:46,086 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 07:31:46,087 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1803609643] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:31:46,087 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 07:31:46,087 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2021-11-20 07:31:46,087 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287354400] [2021-11-20 07:31:46,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:31:46,088 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 07:31:46,088 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:31:46,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 07:31:46,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-20 07:31:46,089 INFO L87 Difference]: Start difference. First operand 11656 states and 16610 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 07:31:46,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:31:46,588 INFO L93 Difference]: Finished difference Result 23275 states and 33683 transitions. [2021-11-20 07:31:46,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 07:31:46,589 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 28 [2021-11-20 07:31:46,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:31:46,665 INFO L225 Difference]: With dead ends: 23275 [2021-11-20 07:31:46,665 INFO L226 Difference]: Without dead ends: 11656 [2021-11-20 07:31:46,728 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-20 07:31:46,729 INFO L933 BasicCegarLoop]: 8236 mSDtfsCounter, 8215 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8215 SdHoareTripleChecker+Valid, 8236 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 07:31:46,729 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8215 Valid, 8236 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 07:31:46,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11656 states. [2021-11-20 07:31:47,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11656 to 11656. [2021-11-20 07:31:47,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11656 states, 8258 states have (on average 1.3182368612254782) internal successors, (10886), 8437 states have internal predecessors, (10886), 2768 states have call successors, (2768), 628 states have call predecessors, (2768), 628 states have return successors, (2954), 2713 states have call predecessors, (2954), 2768 states have call successors, (2954) [2021-11-20 07:31:47,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11656 states to 11656 states and 16608 transitions. [2021-11-20 07:31:47,381 INFO L78 Accepts]: Start accepts. Automaton has 11656 states and 16608 transitions. Word has length 28 [2021-11-20 07:31:47,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:31:47,384 INFO L470 AbstractCegarLoop]: Abstraction has 11656 states and 16608 transitions. [2021-11-20 07:31:47,384 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 07:31:47,384 INFO L276 IsEmpty]: Start isEmpty. Operand 11656 states and 16608 transitions. [2021-11-20 07:31:47,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-20 07:31:47,388 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:31:47,389 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:31:47,443 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_360af17b-888d-4aac-8f82-1204e0591448/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-20 07:31:47,614 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_360af17b-888d-4aac-8f82-1204e0591448/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-11-20 07:31:47,614 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:31:47,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:31:47,614 INFO L85 PathProgramCache]: Analyzing trace with hash 1487481628, now seen corresponding path program 1 times [2021-11-20 07:31:47,615 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:31:47,615 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864667306] [2021-11-20 07:31:47,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:31:47,615 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:31:47,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:31:48,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-20 07:31:48,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:31:48,074 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:31:48,074 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:31:48,074 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864667306] [2021-11-20 07:31:48,074 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1864667306] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 07:31:48,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [661374412] [2021-11-20 07:31:48,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:31:48,075 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 07:31:48,075 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_360af17b-888d-4aac-8f82-1204e0591448/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:31:48,076 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_360af17b-888d-4aac-8f82-1204e0591448/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 07:31:48,099 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_360af17b-888d-4aac-8f82-1204e0591448/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-20 07:31:50,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:31:50,222 INFO L263 TraceCheckSpWp]: Trace formula consists of 4937 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-20 07:31:50,228 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:31:50,510 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-20 07:31:50,511 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 07:31:50,511 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [661374412] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:31:50,511 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 07:31:50,511 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2021-11-20 07:31:50,512 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104488398] [2021-11-20 07:31:50,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:31:50,512 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 07:31:50,512 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:31:50,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 07:31:50,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-20 07:31:50,513 INFO L87 Difference]: Start difference. First operand 11656 states and 16608 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 2 states have internal predecessors, (25), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 07:31:50,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:31:50,997 INFO L93 Difference]: Finished difference Result 23275 states and 33679 transitions. [2021-11-20 07:31:50,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 07:31:50,997 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 2 states have internal predecessors, (25), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 29 [2021-11-20 07:31:50,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:31:51,071 INFO L225 Difference]: With dead ends: 23275 [2021-11-20 07:31:51,071 INFO L226 Difference]: Without dead ends: 11656 [2021-11-20 07:31:51,134 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-20 07:31:51,135 INFO L933 BasicCegarLoop]: 8235 mSDtfsCounter, 8213 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8213 SdHoareTripleChecker+Valid, 8235 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 07:31:51,135 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8213 Valid, 8235 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 07:31:51,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11656 states. [2021-11-20 07:31:51,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11656 to 11656. [2021-11-20 07:31:51,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11656 states, 8258 states have (on average 1.3179946718333737) internal successors, (10884), 8437 states have internal predecessors, (10884), 2768 states have call successors, (2768), 628 states have call predecessors, (2768), 628 states have return successors, (2954), 2713 states have call predecessors, (2954), 2768 states have call successors, (2954) [2021-11-20 07:31:51,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11656 states to 11656 states and 16606 transitions. [2021-11-20 07:31:51,924 INFO L78 Accepts]: Start accepts. Automaton has 11656 states and 16606 transitions. Word has length 29 [2021-11-20 07:31:51,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:31:51,925 INFO L470 AbstractCegarLoop]: Abstraction has 11656 states and 16606 transitions. [2021-11-20 07:31:51,925 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 2 states have internal predecessors, (25), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 07:31:51,925 INFO L276 IsEmpty]: Start isEmpty. Operand 11656 states and 16606 transitions. [2021-11-20 07:31:51,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-20 07:31:51,927 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:31:51,928 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:31:51,976 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_360af17b-888d-4aac-8f82-1204e0591448/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-20 07:31:52,142 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_360af17b-888d-4aac-8f82-1204e0591448/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 07:31:52,142 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:31:52,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:31:52,142 INFO L85 PathProgramCache]: Analyzing trace with hash -231349032, now seen corresponding path program 1 times [2021-11-20 07:31:52,143 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:31:52,143 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257509693] [2021-11-20 07:31:52,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:31:52,143 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:31:52,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:31:52,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-20 07:31:52,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:31:52,556 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:31:52,556 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:31:52,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257509693] [2021-11-20 07:31:52,557 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [257509693] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 07:31:52,557 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1300130054] [2021-11-20 07:31:52,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:31:52,557 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 07:31:52,558 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_360af17b-888d-4aac-8f82-1204e0591448/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:31:52,558 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_360af17b-888d-4aac-8f82-1204e0591448/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 07:31:52,578 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_360af17b-888d-4aac-8f82-1204e0591448/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-20 07:31:54,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:31:54,501 INFO L263 TraceCheckSpWp]: Trace formula consists of 4938 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-20 07:31:54,504 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:31:54,821 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-20 07:31:54,821 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 07:31:54,822 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1300130054] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:31:54,822 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 07:31:54,822 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2021-11-20 07:31:54,822 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795496970] [2021-11-20 07:31:54,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:31:54,823 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 07:31:54,823 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:31:54,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 07:31:54,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-20 07:31:54,824 INFO L87 Difference]: Start difference. First operand 11656 states and 16606 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 2 states have internal predecessors, (26), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 07:31:55,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:31:55,226 INFO L93 Difference]: Finished difference Result 23275 states and 33675 transitions. [2021-11-20 07:31:55,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 07:31:55,227 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 2 states have internal predecessors, (26), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 30 [2021-11-20 07:31:55,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:31:55,299 INFO L225 Difference]: With dead ends: 23275 [2021-11-20 07:31:55,300 INFO L226 Difference]: Without dead ends: 11656 [2021-11-20 07:31:55,385 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-20 07:31:55,386 INFO L933 BasicCegarLoop]: 8234 mSDtfsCounter, 8211 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8211 SdHoareTripleChecker+Valid, 8234 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 07:31:55,387 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8211 Valid, 8234 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 07:31:55,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11656 states. [2021-11-20 07:31:55,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11656 to 11656. [2021-11-20 07:31:55,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11656 states, 8258 states have (on average 1.317752482441269) internal successors, (10882), 8437 states have internal predecessors, (10882), 2768 states have call successors, (2768), 628 states have call predecessors, (2768), 628 states have return successors, (2954), 2713 states have call predecessors, (2954), 2768 states have call successors, (2954) [2021-11-20 07:31:55,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11656 states to 11656 states and 16604 transitions. [2021-11-20 07:31:55,995 INFO L78 Accepts]: Start accepts. Automaton has 11656 states and 16604 transitions. Word has length 30 [2021-11-20 07:31:55,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:31:55,996 INFO L470 AbstractCegarLoop]: Abstraction has 11656 states and 16604 transitions. [2021-11-20 07:31:55,996 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 2 states have internal predecessors, (26), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 07:31:55,996 INFO L276 IsEmpty]: Start isEmpty. Operand 11656 states and 16604 transitions. [2021-11-20 07:31:55,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-20 07:31:55,998 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:31:55,998 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:31:56,044 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_360af17b-888d-4aac-8f82-1204e0591448/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-20 07:31:56,214 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_360af17b-888d-4aac-8f82-1204e0591448/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 07:31:56,214 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:31:56,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:31:56,214 INFO L85 PathProgramCache]: Analyzing trace with hash -1860975336, now seen corresponding path program 1 times [2021-11-20 07:31:56,214 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:31:56,215 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726531009] [2021-11-20 07:31:56,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:31:56,215 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:31:56,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:31:56,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-20 07:31:56,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:31:56,638 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:31:56,639 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:31:56,639 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726531009] [2021-11-20 07:31:56,639 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1726531009] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 07:31:56,639 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1538649140] [2021-11-20 07:31:56,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:31:56,640 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 07:31:56,640 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_360af17b-888d-4aac-8f82-1204e0591448/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:31:56,641 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_360af17b-888d-4aac-8f82-1204e0591448/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 07:31:56,690 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_360af17b-888d-4aac-8f82-1204e0591448/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-20 07:31:58,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:31:58,440 INFO L263 TraceCheckSpWp]: Trace formula consists of 4939 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-20 07:31:58,442 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:31:58,719 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-20 07:31:58,719 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 07:31:58,719 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1538649140] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:31:58,719 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 07:31:58,719 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2021-11-20 07:31:58,720 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433050221] [2021-11-20 07:31:58,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:31:58,720 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 07:31:58,720 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:31:58,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 07:31:58,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-20 07:31:58,722 INFO L87 Difference]: Start difference. First operand 11656 states and 16604 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 2 states have internal predecessors, (27), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 07:31:59,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:31:59,674 INFO L93 Difference]: Finished difference Result 34838 states and 51441 transitions. [2021-11-20 07:31:59,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 07:31:59,675 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 2 states have internal predecessors, (27), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 31 [2021-11-20 07:31:59,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:31:59,827 INFO L225 Difference]: With dead ends: 34838 [2021-11-20 07:31:59,827 INFO L226 Difference]: Without dead ends: 23219 [2021-11-20 07:32:00,157 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-20 07:32:00,158 INFO L933 BasicCegarLoop]: 9964 mSDtfsCounter, 8342 mSDsluCounter, 8299 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8342 SdHoareTripleChecker+Valid, 18263 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 07:32:00,159 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8342 Valid, 18263 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 07:32:00,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23219 states. [2021-11-20 07:32:01,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23219 to 23211. [2021-11-20 07:32:01,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23211 states, 16437 states have (on average 1.31788039179899) internal successors, (21662), 16797 states have internal predecessors, (21662), 5521 states have call successors, (5521), 1255 states have call predecessors, (5521), 1251 states have return successors, (6811), 5401 states have call predecessors, (6811), 5521 states have call successors, (6811) [2021-11-20 07:32:01,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23211 states to 23211 states and 33994 transitions. [2021-11-20 07:32:01,817 INFO L78 Accepts]: Start accepts. Automaton has 23211 states and 33994 transitions. Word has length 31 [2021-11-20 07:32:01,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:32:01,818 INFO L470 AbstractCegarLoop]: Abstraction has 23211 states and 33994 transitions. [2021-11-20 07:32:01,818 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 2 states have internal predecessors, (27), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 07:32:01,818 INFO L276 IsEmpty]: Start isEmpty. Operand 23211 states and 33994 transitions. [2021-11-20 07:32:01,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-20 07:32:01,819 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:32:01,819 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:32:01,859 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_360af17b-888d-4aac-8f82-1204e0591448/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-20 07:32:02,038 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_360af17b-888d-4aac-8f82-1204e0591448/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-11-20 07:32:02,038 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:32:02,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:32:02,039 INFO L85 PathProgramCache]: Analyzing trace with hash -725266604, now seen corresponding path program 1 times [2021-11-20 07:32:02,039 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:32:02,039 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806622240] [2021-11-20 07:32:02,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:32:02,039 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:32:02,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:32:02,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-20 07:32:02,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:32:02,518 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:32:02,518 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:32:02,518 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806622240] [2021-11-20 07:32:02,518 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1806622240] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 07:32:02,519 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1530369374] [2021-11-20 07:32:02,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:32:02,519 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 07:32:02,519 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_360af17b-888d-4aac-8f82-1204e0591448/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:32:02,520 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_360af17b-888d-4aac-8f82-1204e0591448/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 07:32:02,540 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_360af17b-888d-4aac-8f82-1204e0591448/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-20 07:32:04,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:32:04,443 INFO L263 TraceCheckSpWp]: Trace formula consists of 4940 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-20 07:32:04,446 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:32:04,743 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-20 07:32:04,743 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 07:32:04,744 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1530369374] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:32:04,744 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 07:32:04,744 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2021-11-20 07:32:04,744 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200427315] [2021-11-20 07:32:04,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:32:04,745 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 07:32:04,745 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:32:04,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 07:32:04,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-20 07:32:04,746 INFO L87 Difference]: Start difference. First operand 23211 states and 33994 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 2 states have internal predecessors, (28), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 07:32:05,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:32:05,633 INFO L93 Difference]: Finished difference Result 46385 states and 69705 transitions. [2021-11-20 07:32:05,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 07:32:05,633 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 2 states have internal predecessors, (28), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 32 [2021-11-20 07:32:05,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:32:05,789 INFO L225 Difference]: With dead ends: 46385 [2021-11-20 07:32:05,790 INFO L226 Difference]: Without dead ends: 23211 [2021-11-20 07:32:06,217 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-20 07:32:06,218 INFO L933 BasicCegarLoop]: 8233 mSDtfsCounter, 8208 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8208 SdHoareTripleChecker+Valid, 8233 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 07:32:06,218 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8208 Valid, 8233 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 07:32:06,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23211 states. [2021-11-20 07:32:07,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23211 to 23211. [2021-11-20 07:32:07,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23211 states, 16437 states have (on average 1.3176370383890004) internal successors, (21658), 16797 states have internal predecessors, (21658), 5521 states have call successors, (5521), 1255 states have call predecessors, (5521), 1251 states have return successors, (6811), 5401 states have call predecessors, (6811), 5521 states have call successors, (6811) [2021-11-20 07:32:07,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23211 states to 23211 states and 33990 transitions. [2021-11-20 07:32:07,718 INFO L78 Accepts]: Start accepts. Automaton has 23211 states and 33990 transitions. Word has length 32 [2021-11-20 07:32:07,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:32:07,718 INFO L470 AbstractCegarLoop]: Abstraction has 23211 states and 33990 transitions. [2021-11-20 07:32:07,718 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 2 states have internal predecessors, (28), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 07:32:07,719 INFO L276 IsEmpty]: Start isEmpty. Operand 23211 states and 33990 transitions. [2021-11-20 07:32:07,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-20 07:32:07,719 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:32:07,719 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:32:07,754 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_360af17b-888d-4aac-8f82-1204e0591448/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-11-20 07:32:07,930 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_360af17b-888d-4aac-8f82-1204e0591448/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 07:32:07,930 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:32:07,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:32:07,930 INFO L85 PathProgramCache]: Analyzing trace with hash 236482324, now seen corresponding path program 1 times [2021-11-20 07:32:07,931 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:32:07,931 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973229749] [2021-11-20 07:32:07,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:32:07,931 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:32:08,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:32:08,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-20 07:32:08,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:32:08,318 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:32:08,318 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:32:08,318 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973229749] [2021-11-20 07:32:08,318 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [973229749] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 07:32:08,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [615582491] [2021-11-20 07:32:08,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:32:08,319 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 07:32:08,319 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_360af17b-888d-4aac-8f82-1204e0591448/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:32:08,320 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_360af17b-888d-4aac-8f82-1204e0591448/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 07:32:08,341 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_360af17b-888d-4aac-8f82-1204e0591448/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-20 07:32:10,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:32:10,347 INFO L263 TraceCheckSpWp]: Trace formula consists of 4941 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-20 07:32:10,350 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:32:10,641 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-20 07:32:10,641 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 07:32:10,642 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [615582491] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:32:10,642 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 07:32:10,642 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2021-11-20 07:32:10,642 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315381979] [2021-11-20 07:32:10,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:32:10,643 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 07:32:10,643 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:32:10,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 07:32:10,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-20 07:32:10,644 INFO L87 Difference]: Start difference. First operand 23211 states and 33990 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 07:32:11,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:32:11,724 INFO L93 Difference]: Finished difference Result 46385 states and 69697 transitions. [2021-11-20 07:32:11,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 07:32:11,724 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 33 [2021-11-20 07:32:11,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:32:11,815 INFO L225 Difference]: With dead ends: 46385 [2021-11-20 07:32:11,815 INFO L226 Difference]: Without dead ends: 23211 [2021-11-20 07:32:11,914 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-20 07:32:11,915 INFO L933 BasicCegarLoop]: 8232 mSDtfsCounter, 8206 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8206 SdHoareTripleChecker+Valid, 8232 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 07:32:11,915 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8206 Valid, 8232 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 07:32:11,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23211 states. [2021-11-20 07:32:12,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23211 to 23211. [2021-11-20 07:32:12,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23211 states, 16437 states have (on average 1.3173936849790107) internal successors, (21654), 16797 states have internal predecessors, (21654), 5521 states have call successors, (5521), 1255 states have call predecessors, (5521), 1251 states have return successors, (6811), 5401 states have call predecessors, (6811), 5521 states have call successors, (6811) [2021-11-20 07:32:13,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23211 states to 23211 states and 33986 transitions. [2021-11-20 07:32:13,263 INFO L78 Accepts]: Start accepts. Automaton has 23211 states and 33986 transitions. Word has length 33 [2021-11-20 07:32:13,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:32:13,264 INFO L470 AbstractCegarLoop]: Abstraction has 23211 states and 33986 transitions. [2021-11-20 07:32:13,264 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 07:32:13,264 INFO L276 IsEmpty]: Start isEmpty. Operand 23211 states and 33986 transitions. [2021-11-20 07:32:13,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-20 07:32:13,264 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:32:13,264 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:32:13,296 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_360af17b-888d-4aac-8f82-1204e0591448/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-11-20 07:32:13,465 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_360af17b-888d-4aac-8f82-1204e0591448/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-11-20 07:32:13,465 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:32:13,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:32:13,466 INFO L85 PathProgramCache]: Analyzing trace with hash 100444624, now seen corresponding path program 1 times [2021-11-20 07:32:13,466 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:32:13,466 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203220035] [2021-11-20 07:32:13,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:32:13,466 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:32:13,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:32:13,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-20 07:32:13,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:32:13,900 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:32:13,901 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:32:13,901 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203220035] [2021-11-20 07:32:13,903 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1203220035] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 07:32:13,903 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [771821870] [2021-11-20 07:32:13,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:32:13,903 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 07:32:13,903 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_360af17b-888d-4aac-8f82-1204e0591448/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:32:13,904 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_360af17b-888d-4aac-8f82-1204e0591448/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 07:32:13,929 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_360af17b-888d-4aac-8f82-1204e0591448/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-11-20 07:32:16,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:32:16,589 INFO L263 TraceCheckSpWp]: Trace formula consists of 4942 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-20 07:32:16,593 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:32:16,938 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-20 07:32:16,939 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 07:32:16,939 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [771821870] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:32:16,939 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 07:32:16,939 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2021-11-20 07:32:16,939 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372793430] [2021-11-20 07:32:16,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:32:16,940 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 07:32:16,940 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:32:16,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 07:32:16,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-20 07:32:16,940 INFO L87 Difference]: Start difference. First operand 23211 states and 33986 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 2 states have internal predecessors, (30), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 07:32:18,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:32:18,082 INFO L93 Difference]: Finished difference Result 46385 states and 69689 transitions. [2021-11-20 07:32:18,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 07:32:18,083 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 2 states have internal predecessors, (30), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 34 [2021-11-20 07:32:18,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:32:18,205 INFO L225 Difference]: With dead ends: 46385 [2021-11-20 07:32:18,206 INFO L226 Difference]: Without dead ends: 23211 [2021-11-20 07:32:18,316 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-20 07:32:18,317 INFO L933 BasicCegarLoop]: 8231 mSDtfsCounter, 8204 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8204 SdHoareTripleChecker+Valid, 8231 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 07:32:18,317 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8204 Valid, 8231 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 07:32:18,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23211 states. [2021-11-20 07:32:19,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23211 to 23211. [2021-11-20 07:32:19,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23211 states, 16437 states have (on average 1.3171503315690212) internal successors, (21650), 16797 states have internal predecessors, (21650), 5521 states have call successors, (5521), 1255 states have call predecessors, (5521), 1251 states have return successors, (6811), 5401 states have call predecessors, (6811), 5521 states have call successors, (6811) [2021-11-20 07:32:19,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23211 states to 23211 states and 33982 transitions. [2021-11-20 07:32:19,641 INFO L78 Accepts]: Start accepts. Automaton has 23211 states and 33982 transitions. Word has length 34 [2021-11-20 07:32:19,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:32:19,643 INFO L470 AbstractCegarLoop]: Abstraction has 23211 states and 33982 transitions. [2021-11-20 07:32:19,644 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 2 states have internal predecessors, (30), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 07:32:19,644 INFO L276 IsEmpty]: Start isEmpty. Operand 23211 states and 33982 transitions. [2021-11-20 07:32:19,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-20 07:32:19,645 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:32:19,645 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:32:19,681 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_360af17b-888d-4aac-8f82-1204e0591448/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2021-11-20 07:32:19,850 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_360af17b-888d-4aac-8f82-1204e0591448/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 07:32:19,850 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:32:19,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:32:19,850 INFO L85 PathProgramCache]: Analyzing trace with hash 292759824, now seen corresponding path program 1 times [2021-11-20 07:32:19,851 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:32:19,851 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123718016] [2021-11-20 07:32:19,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:32:19,851 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:32:20,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:32:20,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-20 07:32:20,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:32:20,304 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:32:20,304 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:32:20,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123718016] [2021-11-20 07:32:20,305 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [123718016] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 07:32:20,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1932921866] [2021-11-20 07:32:20,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:32:20,306 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 07:32:20,306 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_360af17b-888d-4aac-8f82-1204e0591448/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:32:20,307 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_360af17b-888d-4aac-8f82-1204e0591448/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 07:32:20,324 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_360af17b-888d-4aac-8f82-1204e0591448/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-11-20 07:32:22,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:32:22,478 INFO L263 TraceCheckSpWp]: Trace formula consists of 4943 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-20 07:32:22,481 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:32:22,809 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-20 07:32:22,809 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 07:32:22,809 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1932921866] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:32:22,809 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 07:32:22,809 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2021-11-20 07:32:22,809 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837877419] [2021-11-20 07:32:22,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:32:22,810 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 07:32:22,810 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:32:22,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 07:32:22,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-20 07:32:22,811 INFO L87 Difference]: Start difference. First operand 23211 states and 33982 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 2 states have internal predecessors, (31), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 07:32:24,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:32:24,028 INFO L93 Difference]: Finished difference Result 46385 states and 69681 transitions. [2021-11-20 07:32:24,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 07:32:24,029 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 2 states have internal predecessors, (31), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 35 [2021-11-20 07:32:24,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:32:24,254 INFO L225 Difference]: With dead ends: 46385 [2021-11-20 07:32:24,254 INFO L226 Difference]: Without dead ends: 23211 [2021-11-20 07:32:24,360 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-20 07:32:24,361 INFO L933 BasicCegarLoop]: 8230 mSDtfsCounter, 8202 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8202 SdHoareTripleChecker+Valid, 8230 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 07:32:24,361 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8202 Valid, 8230 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 07:32:24,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23211 states. [2021-11-20 07:32:25,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23211 to 23211. [2021-11-20 07:32:25,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23211 states, 16437 states have (on average 1.3169069781590315) internal successors, (21646), 16797 states have internal predecessors, (21646), 5521 states have call successors, (5521), 1255 states have call predecessors, (5521), 1251 states have return successors, (6811), 5401 states have call predecessors, (6811), 5521 states have call successors, (6811) [2021-11-20 07:32:25,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23211 states to 23211 states and 33978 transitions. [2021-11-20 07:32:25,715 INFO L78 Accepts]: Start accepts. Automaton has 23211 states and 33978 transitions. Word has length 35 [2021-11-20 07:32:25,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:32:25,715 INFO L470 AbstractCegarLoop]: Abstraction has 23211 states and 33978 transitions. [2021-11-20 07:32:25,715 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 2 states have internal predecessors, (31), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 07:32:25,716 INFO L276 IsEmpty]: Start isEmpty. Operand 23211 states and 33978 transitions. [2021-11-20 07:32:25,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-11-20 07:32:25,716 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:32:25,716 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:32:25,752 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_360af17b-888d-4aac-8f82-1204e0591448/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-11-20 07:32:25,917 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_360af17b-888d-4aac-8f82-1204e0591448/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-11-20 07:32:25,917 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:32:25,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:32:25,917 INFO L85 PathProgramCache]: Analyzing trace with hash 2074080332, now seen corresponding path program 1 times [2021-11-20 07:32:25,918 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:32:25,918 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932745305] [2021-11-20 07:32:25,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:32:25,918 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:32:26,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:32:26,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-20 07:32:26,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:32:26,305 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:32:26,306 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:32:26,306 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1932745305] [2021-11-20 07:32:26,306 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1932745305] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 07:32:26,306 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [810297194] [2021-11-20 07:32:26,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:32:26,307 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 07:32:26,307 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_360af17b-888d-4aac-8f82-1204e0591448/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:32:26,308 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_360af17b-888d-4aac-8f82-1204e0591448/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 07:32:26,331 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_360af17b-888d-4aac-8f82-1204e0591448/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-11-20 07:32:28,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:32:28,366 INFO L263 TraceCheckSpWp]: Trace formula consists of 4944 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-20 07:32:28,368 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:32:28,754 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-20 07:32:28,755 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 07:32:28,755 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [810297194] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:32:28,755 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 07:32:28,755 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2021-11-20 07:32:28,755 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604858326] [2021-11-20 07:32:28,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:32:28,756 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 07:32:28,756 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:32:28,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 07:32:28,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-20 07:32:28,756 INFO L87 Difference]: Start difference. First operand 23211 states and 33978 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 2 states have internal predecessors, (32), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 07:32:29,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:32:29,909 INFO L93 Difference]: Finished difference Result 46385 states and 69673 transitions. [2021-11-20 07:32:29,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 07:32:29,909 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 2 states have internal predecessors, (32), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 36 [2021-11-20 07:32:29,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:32:30,170 INFO L225 Difference]: With dead ends: 46385 [2021-11-20 07:32:30,170 INFO L226 Difference]: Without dead ends: 23211 [2021-11-20 07:32:30,310 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-20 07:32:30,311 INFO L933 BasicCegarLoop]: 8229 mSDtfsCounter, 8200 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8200 SdHoareTripleChecker+Valid, 8229 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 07:32:30,311 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8200 Valid, 8229 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 07:32:30,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23211 states. [2021-11-20 07:32:31,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23211 to 23211. [2021-11-20 07:32:31,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23211 states, 16437 states have (on average 1.3166636247490417) internal successors, (21642), 16797 states have internal predecessors, (21642), 5521 states have call successors, (5521), 1255 states have call predecessors, (5521), 1251 states have return successors, (6811), 5401 states have call predecessors, (6811), 5521 states have call successors, (6811) [2021-11-20 07:32:31,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23211 states to 23211 states and 33974 transitions. [2021-11-20 07:32:31,769 INFO L78 Accepts]: Start accepts. Automaton has 23211 states and 33974 transitions. Word has length 36 [2021-11-20 07:32:31,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:32:31,769 INFO L470 AbstractCegarLoop]: Abstraction has 23211 states and 33974 transitions. [2021-11-20 07:32:31,770 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 2 states have internal predecessors, (32), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 07:32:31,770 INFO L276 IsEmpty]: Start isEmpty. Operand 23211 states and 33974 transitions. [2021-11-20 07:32:31,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-20 07:32:31,771 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:32:31,771 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:32:31,834 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_360af17b-888d-4aac-8f82-1204e0591448/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-11-20 07:32:31,986 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_360af17b-888d-4aac-8f82-1204e0591448/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-11-20 07:32:31,986 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:32:31,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:32:31,986 INFO L85 PathProgramCache]: Analyzing trace with hash 1574957836, now seen corresponding path program 1 times [2021-11-20 07:32:31,986 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:32:31,987 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964473741] [2021-11-20 07:32:31,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:32:31,987 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:32:32,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:32:32,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-20 07:32:32,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:32:32,357 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:32:32,357 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:32:32,358 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [964473741] [2021-11-20 07:32:32,358 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [964473741] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 07:32:32,358 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1727647794] [2021-11-20 07:32:32,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:32:32,358 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 07:32:32,359 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_360af17b-888d-4aac-8f82-1204e0591448/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:32:32,360 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_360af17b-888d-4aac-8f82-1204e0591448/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 07:32:32,378 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_360af17b-888d-4aac-8f82-1204e0591448/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-11-20 07:32:34,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:32:34,176 INFO L263 TraceCheckSpWp]: Trace formula consists of 4945 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-20 07:32:34,179 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:32:34,549 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-20 07:32:34,549 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 07:32:34,550 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1727647794] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:32:34,550 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 07:32:34,550 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2021-11-20 07:32:34,550 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895467683] [2021-11-20 07:32:34,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:32:34,551 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 07:32:34,551 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:32:34,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 07:32:34,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-20 07:32:34,552 INFO L87 Difference]: Start difference. First operand 23211 states and 33974 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 2 states have internal predecessors, (33), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 07:32:36,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:32:36,015 INFO L93 Difference]: Finished difference Result 46385 states and 69665 transitions. [2021-11-20 07:32:36,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 07:32:36,015 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 2 states have internal predecessors, (33), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 37 [2021-11-20 07:32:36,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted.