./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.7.3/main1_drivers-vhost-vhost_net-ko--32_7a--linux-3.7.3.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24dc5eeb-7fce-45ad-a240-eb46b9263c1e/bin/utaipan-G1rejxKTta/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24dc5eeb-7fce-45ad-a240-eb46b9263c1e/bin/utaipan-G1rejxKTta/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24dc5eeb-7fce-45ad-a240-eb46b9263c1e/bin/utaipan-G1rejxKTta/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24dc5eeb-7fce-45ad-a240-eb46b9263c1e/bin/utaipan-G1rejxKTta/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.7.3/main1_drivers-vhost-vhost_net-ko--32_7a--linux-3.7.3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24dc5eeb-7fce-45ad-a240-eb46b9263c1e/bin/utaipan-G1rejxKTta/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24dc5eeb-7fce-45ad-a240-eb46b9263c1e/bin/utaipan-G1rejxKTta --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash f4e2d1a15968d1244ea21dd78c93930ffcefcf7ed108cd6721571103f64feb4f --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-dbf71c6-m [2022-10-17 17:15:52,581 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 17:15:52,585 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 17:15:52,616 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 17:15:52,617 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 17:15:52,619 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 17:15:52,620 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 17:15:52,623 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 17:15:52,625 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 17:15:52,626 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 17:15:52,628 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 17:15:52,629 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 17:15:52,630 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 17:15:52,631 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 17:15:52,633 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 17:15:52,634 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 17:15:52,636 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 17:15:52,637 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 17:15:52,640 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 17:15:52,642 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 17:15:52,644 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 17:15:52,646 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 17:15:52,648 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 17:15:52,649 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 17:15:52,654 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 17:15:52,655 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 17:15:52,655 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 17:15:52,656 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 17:15:52,657 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 17:15:52,658 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 17:15:52,659 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 17:15:52,660 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 17:15:52,661 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 17:15:52,662 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 17:15:52,663 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 17:15:52,664 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 17:15:52,665 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 17:15:52,665 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 17:15:52,666 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 17:15:52,667 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 17:15:52,668 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 17:15:52,669 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24dc5eeb-7fce-45ad-a240-eb46b9263c1e/bin/utaipan-G1rejxKTta/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-10-17 17:15:52,698 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 17:15:52,698 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 17:15:52,699 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 17:15:52,699 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 17:15:52,700 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 17:15:52,700 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-17 17:15:52,701 INFO L138 SettingsManager]: * User list type=DISABLED [2022-10-17 17:15:52,701 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-10-17 17:15:52,702 INFO L138 SettingsManager]: * Explicit value domain=true [2022-10-17 17:15:52,702 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-10-17 17:15:52,702 INFO L138 SettingsManager]: * Octagon Domain=false [2022-10-17 17:15:52,703 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-10-17 17:15:52,703 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-10-17 17:15:52,704 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-10-17 17:15:52,704 INFO L138 SettingsManager]: * Interval Domain=false [2022-10-17 17:15:52,704 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-10-17 17:15:52,705 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-10-17 17:15:52,705 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-10-17 17:15:52,706 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 17:15:52,707 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 17:15:52,707 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 17:15:52,707 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 17:15:52,708 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 17:15:52,708 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 17:15:52,709 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 17:15:52,709 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 17:15:52,709 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 17:15:52,709 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 17:15:52,710 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-17 17:15:52,710 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 17:15:52,710 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 17:15:52,710 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-10-17 17:15:52,711 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 17:15:52,711 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 17:15:52,711 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-10-17 17:15:52,711 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 17:15:52,712 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 17:15:52,712 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-10-17 17:15:52,712 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_24dc5eeb-7fce-45ad-a240-eb46b9263c1e/bin/utaipan-G1rejxKTta/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24dc5eeb-7fce-45ad-a240-eb46b9263c1e/bin/utaipan-G1rejxKTta Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f4e2d1a15968d1244ea21dd78c93930ffcefcf7ed108cd6721571103f64feb4f [2022-10-17 17:15:52,977 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 17:15:53,008 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 17:15:53,011 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 17:15:53,012 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 17:15:53,013 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 17:15:53,014 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24dc5eeb-7fce-45ad-a240-eb46b9263c1e/bin/utaipan-G1rejxKTta/../../sv-benchmarks/c/ldv-linux-3.7.3/main1_drivers-vhost-vhost_net-ko--32_7a--linux-3.7.3.i [2022-10-17 17:15:53,112 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24dc5eeb-7fce-45ad-a240-eb46b9263c1e/bin/utaipan-G1rejxKTta/data/f68c949f1/984e3b12438c4efc8e920269e42eb4f2/FLAGd250850e3 [2022-10-17 17:15:54,042 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 17:15:54,043 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24dc5eeb-7fce-45ad-a240-eb46b9263c1e/sv-benchmarks/c/ldv-linux-3.7.3/main1_drivers-vhost-vhost_net-ko--32_7a--linux-3.7.3.i [2022-10-17 17:15:54,096 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24dc5eeb-7fce-45ad-a240-eb46b9263c1e/bin/utaipan-G1rejxKTta/data/f68c949f1/984e3b12438c4efc8e920269e42eb4f2/FLAGd250850e3 [2022-10-17 17:15:54,416 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24dc5eeb-7fce-45ad-a240-eb46b9263c1e/bin/utaipan-G1rejxKTta/data/f68c949f1/984e3b12438c4efc8e920269e42eb4f2 [2022-10-17 17:15:54,420 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 17:15:54,422 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 17:15:54,426 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 17:15:54,427 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 17:15:54,430 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 17:15:54,432 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 05:15:54" (1/1) ... [2022-10-17 17:15:54,434 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74671362 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:15:54, skipping insertion in model container [2022-10-17 17:15:54,434 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 05:15:54" (1/1) ... [2022-10-17 17:15:54,444 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 17:15:54,648 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 17:15:56,940 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_24dc5eeb-7fce-45ad-a240-eb46b9263c1e/sv-benchmarks/c/ldv-linux-3.7.3/main1_drivers-vhost-vhost_net-ko--32_7a--linux-3.7.3.i[372197,372210] [2022-10-17 17:15:57,101 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 17:15:57,123 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 17:15:57,622 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_24dc5eeb-7fce-45ad-a240-eb46b9263c1e/sv-benchmarks/c/ldv-linux-3.7.3/main1_drivers-vhost-vhost_net-ko--32_7a--linux-3.7.3.i[372197,372210] [2022-10-17 17:15:57,635 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 17:15:57,754 INFO L208 MainTranslator]: Completed translation [2022-10-17 17:15:57,755 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:15:57 WrapperNode [2022-10-17 17:15:57,756 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 17:15:57,757 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 17:15:57,757 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 17:15:57,757 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 17:15:57,765 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:15:57" (1/1) ... [2022-10-17 17:15:57,883 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:15:57" (1/1) ... [2022-10-17 17:15:58,119 INFO L138 Inliner]: procedures = 335, calls = 2629, calls flagged for inlining = 138, calls inlined = 130, statements flattened = 6671 [2022-10-17 17:15:58,120 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 17:15:58,122 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 17:15:58,122 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 17:15:58,122 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 17:15:58,133 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:15:57" (1/1) ... [2022-10-17 17:15:58,134 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:15:57" (1/1) ... [2022-10-17 17:15:58,254 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:15:57" (1/1) ... [2022-10-17 17:15:58,255 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:15:57" (1/1) ... [2022-10-17 17:15:58,406 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:15:57" (1/1) ... [2022-10-17 17:15:58,436 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:15:57" (1/1) ... [2022-10-17 17:15:58,468 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:15:57" (1/1) ... [2022-10-17 17:15:58,492 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:15:57" (1/1) ... [2022-10-17 17:15:58,531 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 17:15:58,532 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 17:15:58,533 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 17:15:58,533 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 17:15:58,534 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:15:57" (1/1) ... [2022-10-17 17:15:58,541 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 17:15:58,556 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24dc5eeb-7fce-45ad-a240-eb46b9263c1e/bin/utaipan-G1rejxKTta/z3 [2022-10-17 17:15:58,574 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24dc5eeb-7fce-45ad-a240-eb46b9263c1e/bin/utaipan-G1rejxKTta/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-17 17:15:58,602 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24dc5eeb-7fce-45ad-a240-eb46b9263c1e/bin/utaipan-G1rejxKTta/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-17 17:15:58,619 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_add_used_and_signal [2022-10-17 17:15:58,619 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_add_used_and_signal [2022-10-17 17:15:58,619 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_toiovecend [2022-10-17 17:15:58,619 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_toiovecend [2022-10-17 17:15:58,619 INFO L130 BoogieDeclarations]: Found specification of procedure handle_tx_net [2022-10-17 17:15:58,619 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_tx_net [2022-10-17 17:15:58,619 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_vq_free_iovecs [2022-10-17 17:15:58,620 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_vq_free_iovecs [2022-10-17 17:15:58,620 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2022-10-17 17:15:58,620 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2022-10-17 17:15:58,620 INFO L130 BoogieDeclarations]: Found specification of procedure vq_access_ok [2022-10-17 17:15:58,620 INFO L138 BoogieDeclarations]: Found implementation of procedure vq_access_ok [2022-10-17 17:15:58,620 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-10-17 17:15:58,620 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_work_flush [2022-10-17 17:15:58,620 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_work_flush [2022-10-17 17:15:58,621 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-10-17 17:15:58,621 INFO L130 BoogieDeclarations]: Found specification of procedure wake_up_process [2022-10-17 17:15:58,621 INFO L138 BoogieDeclarations]: Found implementation of procedure wake_up_process [2022-10-17 17:15:58,621 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_dev_check_owner [2022-10-17 17:15:58,621 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_dev_check_owner [2022-10-17 17:15:58,621 INFO L130 BoogieDeclarations]: Found specification of procedure log_write [2022-10-17 17:15:58,621 INFO L138 BoogieDeclarations]: Found implementation of procedure log_write [2022-10-17 17:15:58,621 INFO L130 BoogieDeclarations]: Found specification of procedure handle_tx [2022-10-17 17:15:58,622 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_tx [2022-10-17 17:15:58,622 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2022-10-17 17:15:58,622 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2022-10-17 17:15:58,622 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2022-10-17 17:15:58,622 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2022-10-17 17:15:58,622 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-10-17 17:15:58,622 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-10-17 17:15:58,622 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_vq_reset [2022-10-17 17:15:58,623 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_vq_reset [2022-10-17 17:15:58,623 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-10-17 17:15:58,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-10-17 17:15:58,623 INFO L130 BoogieDeclarations]: Found specification of procedure vq_log_access_ok [2022-10-17 17:15:58,623 INFO L138 BoogieDeclarations]: Found implementation of procedure vq_log_access_ok [2022-10-17 17:15:58,623 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-10-17 17:15:58,623 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-10-17 17:15:58,623 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-10-17 17:15:58,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-10-17 17:15:58,624 INFO L130 BoogieDeclarations]: Found specification of procedure __put_user_bad [2022-10-17 17:15:58,624 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-10-17 17:15:58,624 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-10-17 17:15:58,624 INFO L130 BoogieDeclarations]: Found specification of procedure __vhost_add_used_n [2022-10-17 17:15:58,624 INFO L138 BoogieDeclarations]: Found implementation of procedure __vhost_add_used_n [2022-10-17 17:15:58,624 INFO L130 BoogieDeclarations]: Found specification of procedure tx_poll_start [2022-10-17 17:15:58,624 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_poll_start [2022-10-17 17:15:58,625 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_poll_queue [2022-10-17 17:15:58,625 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_poll_queue [2022-10-17 17:15:58,625 INFO L130 BoogieDeclarations]: Found specification of procedure handle_rx [2022-10-17 17:15:58,625 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_rx [2022-10-17 17:15:58,625 INFO L130 BoogieDeclarations]: Found specification of procedure handle_tx_kick [2022-10-17 17:15:58,625 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_tx_kick [2022-10-17 17:15:58,625 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_net_open [2022-10-17 17:15:58,625 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_net_open [2022-10-17 17:15:58,626 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-10-17 17:15:58,626 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-10-17 17:15:58,626 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-10-17 17:15:58,626 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-10-17 17:15:58,626 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2022-10-17 17:15:58,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2022-10-17 17:15:58,626 INFO L130 BoogieDeclarations]: Found specification of procedure eventfd_fget [2022-10-17 17:15:58,626 INFO L138 BoogieDeclarations]: Found implementation of procedure eventfd_fget [2022-10-17 17:15:58,627 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_poll_init [2022-10-17 17:15:58,627 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_poll_init [2022-10-17 17:15:58,627 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-17 17:15:58,627 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-10-17 17:15:58,627 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-10-17 17:15:58,627 INFO L130 BoogieDeclarations]: Found specification of procedure vq_memory_access_ok [2022-10-17 17:15:58,627 INFO L138 BoogieDeclarations]: Found implementation of procedure vq_memory_access_ok [2022-10-17 17:15:58,627 INFO L130 BoogieDeclarations]: Found specification of procedure move_iovec_hdr [2022-10-17 17:15:58,628 INFO L138 BoogieDeclarations]: Found implementation of procedure move_iovec_hdr [2022-10-17 17:15:58,628 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-17 17:15:58,628 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-10-17 17:15:58,628 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-10-17 17:15:58,628 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_work_queue [2022-10-17 17:15:58,628 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_work_queue [2022-10-17 17:15:58,628 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_net_stop [2022-10-17 17:15:58,628 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_net_stop [2022-10-17 17:15:58,628 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-17 17:15:58,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-10-17 17:15:58,629 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_dev_cleanup [2022-10-17 17:15:58,629 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_dev_cleanup [2022-10-17 17:15:58,629 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_zerocopy_callback [2022-10-17 17:15:58,629 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_zerocopy_callback [2022-10-17 17:15:58,629 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-10-17 17:15:58,629 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-10-17 17:15:58,629 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_net_flush_vq [2022-10-17 17:15:58,630 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_net_flush_vq [2022-10-17 17:15:58,630 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_net_stop_vq [2022-10-17 17:15:58,630 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_net_stop_vq [2022-10-17 17:15:58,630 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~X~int~TO~int [2022-10-17 17:15:58,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~X~int~TO~int [2022-10-17 17:15:58,630 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2022-10-17 17:15:58,630 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2022-10-17 17:15:58,630 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-10-17 17:15:58,630 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-10-17 17:15:58,631 INFO L130 BoogieDeclarations]: Found specification of procedure fput [2022-10-17 17:15:58,631 INFO L138 BoogieDeclarations]: Found implementation of procedure fput [2022-10-17 17:15:58,631 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-10-17 17:15:58,631 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-10-17 17:15:58,631 INFO L130 BoogieDeclarations]: Found specification of procedure next_desc [2022-10-17 17:15:58,631 INFO L138 BoogieDeclarations]: Found implementation of procedure next_desc [2022-10-17 17:15:58,631 INFO L130 BoogieDeclarations]: Found specification of procedure iov_length [2022-10-17 17:15:58,631 INFO L138 BoogieDeclarations]: Found implementation of procedure iov_length [2022-10-17 17:15:58,632 INFO L130 BoogieDeclarations]: Found specification of procedure tx_poll_stop [2022-10-17 17:15:58,632 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_poll_stop [2022-10-17 17:15:58,632 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2022-10-17 17:15:58,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2022-10-17 17:15:58,632 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2022-10-17 17:15:58,632 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2022-10-17 17:15:58,632 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-10-17 17:15:58,632 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-10-17 17:15:58,633 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-10-17 17:15:58,633 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_has_feature [2022-10-17 17:15:58,633 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_has_feature [2022-10-17 17:15:58,633 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-10-17 17:15:58,633 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-10-17 17:15:58,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-10-17 17:15:58,633 INFO L130 BoogieDeclarations]: Found specification of procedure __rcu_read_lock [2022-10-17 17:15:58,633 INFO L138 BoogieDeclarations]: Found implementation of procedure __rcu_read_lock [2022-10-17 17:15:58,633 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-17 17:15:58,634 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_work_init [2022-10-17 17:15:58,634 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_work_init [2022-10-17 17:15:58,634 INFO L130 BoogieDeclarations]: Found specification of procedure eventfd_ctx_fileget [2022-10-17 17:15:58,634 INFO L138 BoogieDeclarations]: Found implementation of procedure eventfd_ctx_fileget [2022-10-17 17:15:58,634 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_net_flush [2022-10-17 17:15:58,634 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_net_flush [2022-10-17 17:15:58,634 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_held [2022-10-17 17:15:58,634 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_held [2022-10-17 17:15:58,635 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-10-17 17:15:58,635 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-10-17 17:15:58,635 INFO L130 BoogieDeclarations]: Found specification of procedure __get_user_bad [2022-10-17 17:15:58,635 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_ubuf_put [2022-10-17 17:15:58,635 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_ubuf_put [2022-10-17 17:15:58,635 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-17 17:15:58,635 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-10-17 17:15:58,635 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-10-17 17:15:58,635 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex [2022-10-17 17:15:58,635 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex [2022-10-17 17:15:58,636 INFO L130 BoogieDeclarations]: Found specification of procedure __rcu_read_unlock [2022-10-17 17:15:58,636 INFO L138 BoogieDeclarations]: Found implementation of procedure __rcu_read_unlock [2022-10-17 17:15:58,636 INFO L130 BoogieDeclarations]: Found specification of procedure translate_desc [2022-10-17 17:15:58,636 INFO L138 BoogieDeclarations]: Found implementation of procedure translate_desc [2022-10-17 17:15:58,636 INFO L130 BoogieDeclarations]: Found specification of procedure eventfd_ctx_put [2022-10-17 17:15:58,636 INFO L138 BoogieDeclarations]: Found implementation of procedure eventfd_ctx_put [2022-10-17 17:15:58,636 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_net_ioctl [2022-10-17 17:15:58,636 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_net_ioctl [2022-10-17 17:15:58,636 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_net_disable_vq [2022-10-17 17:15:58,636 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_net_disable_vq [2022-10-17 17:15:58,636 INFO L130 BoogieDeclarations]: Found specification of procedure mmput [2022-10-17 17:15:58,636 INFO L138 BoogieDeclarations]: Found implementation of procedure mmput [2022-10-17 17:15:58,637 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2022-10-17 17:15:58,637 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2022-10-17 17:15:58,637 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2022-10-17 17:15:58,637 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2022-10-17 17:15:58,637 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-10-17 17:15:58,637 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-10-17 17:15:58,637 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_ubuf_put_and_wait [2022-10-17 17:15:58,637 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_ubuf_put_and_wait [2022-10-17 17:15:58,637 INFO L130 BoogieDeclarations]: Found specification of procedure copy_user_generic [2022-10-17 17:15:58,637 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_user_generic [2022-10-17 17:15:58,637 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-17 17:15:58,637 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_is_cpu_idle [2022-10-17 17:15:58,637 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_is_cpu_idle [2022-10-17 17:15:58,638 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-10-17 17:15:58,638 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-10-17 17:15:58,638 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_get_vq_desc [2022-10-17 17:15:58,638 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_get_vq_desc [2022-10-17 17:15:58,638 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 17:15:58,638 INFO L130 BoogieDeclarations]: Found specification of procedure eventfd_signal [2022-10-17 17:15:58,638 INFO L138 BoogieDeclarations]: Found implementation of procedure eventfd_signal [2022-10-17 17:15:58,638 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_enable_notify [2022-10-17 17:15:58,638 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_enable_notify [2022-10-17 17:15:58,638 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_poll_stop [2022-10-17 17:15:58,638 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_poll_stop [2022-10-17 17:15:58,638 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-17 17:15:58,639 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2022-10-17 17:15:58,639 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2022-10-17 17:15:58,639 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-10-17 17:15:58,639 INFO L130 BoogieDeclarations]: Found specification of procedure kthread_stop [2022-10-17 17:15:58,639 INFO L138 BoogieDeclarations]: Found implementation of procedure kthread_stop [2022-10-17 17:15:58,639 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-10-17 17:15:58,639 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-10-17 17:15:58,639 INFO L130 BoogieDeclarations]: Found specification of procedure memory_access_ok [2022-10-17 17:15:58,640 INFO L138 BoogieDeclarations]: Found implementation of procedure memory_access_ok [2022-10-17 17:15:58,640 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2022-10-17 17:15:58,640 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2022-10-17 17:15:58,640 INFO L130 BoogieDeclarations]: Found specification of procedure current_thread_info [2022-10-17 17:15:58,640 INFO L138 BoogieDeclarations]: Found implementation of procedure current_thread_info [2022-10-17 17:15:58,640 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_work_seq_done [2022-10-17 17:15:58,640 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_work_seq_done [2022-10-17 17:15:58,640 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-10-17 17:15:58,640 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-10-17 17:15:58,640 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_net_release [2022-10-17 17:15:58,641 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_net_release [2022-10-17 17:15:58,641 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2022-10-17 17:15:58,641 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2022-10-17 17:15:58,641 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_disable_notify [2022-10-17 17:15:58,641 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_disable_notify [2022-10-17 17:15:58,641 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait [2022-10-17 17:15:58,641 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait [2022-10-17 17:15:58,641 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-10-17 17:15:58,642 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-10-17 17:15:58,642 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_update_used_flags [2022-10-17 17:15:58,642 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_update_used_flags [2022-10-17 17:15:58,642 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_discard_vq_desc [2022-10-17 17:15:58,642 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_discard_vq_desc [2022-10-17 17:15:58,642 INFO L130 BoogieDeclarations]: Found specification of procedure lock_is_held [2022-10-17 17:15:58,642 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_is_held [2022-10-17 17:15:58,642 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_poll_flush [2022-10-17 17:15:58,643 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_poll_flush [2022-10-17 17:15:58,643 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex [2022-10-17 17:15:58,643 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex [2022-10-17 17:15:58,643 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-10-17 17:15:58,643 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-10-17 17:15:58,643 INFO L130 BoogieDeclarations]: Found specification of procedure log_access_ok [2022-10-17 17:15:58,643 INFO L138 BoogieDeclarations]: Found implementation of procedure log_access_ok [2022-10-17 17:15:58,643 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2022-10-17 17:15:58,643 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2022-10-17 17:15:58,644 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-10-17 17:15:58,644 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-10-17 17:15:58,644 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_signal [2022-10-17 17:15:58,644 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_signal [2022-10-17 17:15:58,644 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 17:15:58,644 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_zerocopy_signal_used [2022-10-17 17:15:58,644 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_zerocopy_signal_used [2022-10-17 17:15:58,644 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_poll_start [2022-10-17 17:15:58,644 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_poll_start [2022-10-17 17:15:58,645 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2022-10-17 17:15:58,645 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2022-10-17 17:15:58,645 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 17:15:58,645 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 17:15:58,645 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-10-17 17:15:58,645 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-10-17 17:15:59,541 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 17:15:59,546 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 17:16:04,650 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L5857: SUMMARY for call __copy_to_user_#t~ret139#1 := ldv__builtin_expect((if 0 != __copy_to_user_~ret~2#1 then 1 else 0), 0); srcloc: null [2022-10-17 17:16:04,650 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L5857-1: assume -9223372036854775808 <= __copy_to_user_#t~ret139#1 && __copy_to_user_#t~ret139#1 <= 9223372036854775807;__copy_to_user_~tmp___1~3#1 := __copy_to_user_#t~ret139#1;havoc __copy_to_user_#t~ret139#1; [2022-10-17 17:16:04,650 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L5845: SUMMARY for call __copy_to_user_#t~ret138#1 := ldv__builtin_expect((if 0 != __copy_to_user_~ret~2#1 then 1 else 0), 0); srcloc: null [2022-10-17 17:16:04,650 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L5845-1: assume -9223372036854775808 <= __copy_to_user_#t~ret138#1 && __copy_to_user_#t~ret138#1 <= 9223372036854775807;__copy_to_user_~tmp___0~6#1 := __copy_to_user_#t~ret138#1;havoc __copy_to_user_#t~ret138#1; [2022-10-17 17:16:04,650 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L5866: assume __copy_to_user_#t~switch137#1; [2022-10-17 17:16:04,651 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L5866: assume !__copy_to_user_#t~switch137#1; [2022-10-17 17:16:04,651 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L5858: assume 0 != __copy_to_user_~tmp___1~3#1;__copy_to_user_#res#1 := __copy_to_user_~ret~2#1; [2022-10-17 17:16:04,651 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L5858: assume !(0 != __copy_to_user_~tmp___1~3#1);__copy_to_user_#res#1 := __copy_to_user_~ret~2#1; [2022-10-17 17:16:04,651 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L5854: assume __copy_to_user_#t~switch137#1; [2022-10-17 17:16:04,651 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L5854: assume !__copy_to_user_#t~switch137#1;__copy_to_user_#t~switch137#1 := true; [2022-10-17 17:16:04,651 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L5825: havoc __copy_to_user_#t~switch137#1; [2022-10-17 17:16:04,651 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L5846: assume 0 != __copy_to_user_~tmp___0~6#1;__copy_to_user_#res#1 := __copy_to_user_~ret~2#1; [2022-10-17 17:16:04,652 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L5846: assume !(0 != __copy_to_user_~tmp___0~6#1);__copy_to_user_#res#1 := __copy_to_user_~ret~2#1; [2022-10-17 17:16:04,652 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L5842: assume __copy_to_user_#t~switch137#1; [2022-10-17 17:16:04,652 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L5842: assume !__copy_to_user_#t~switch137#1;__copy_to_user_#t~switch137#1 := __copy_to_user_#t~switch137#1 || 16 == __copy_to_user_~size#1; [2022-10-17 17:16:04,652 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L5838: assume __copy_to_user_#t~switch137#1;__copy_to_user_#res#1 := __copy_to_user_~ret~2#1; [2022-10-17 17:16:04,652 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L5838: assume !__copy_to_user_#t~switch137#1;__copy_to_user_#t~switch137#1 := __copy_to_user_#t~switch137#1 || 10 == __copy_to_user_~size#1; [2022-10-17 17:16:04,652 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L5867: SUMMARY for call __copy_to_user_#t~ret140#1 := copy_user_generic(__copy_to_user_~dst#1.base, __copy_to_user_~dst#1.offset, __copy_to_user_~src#1.base, __copy_to_user_~src#1.offset, __copy_to_user_~size#1); srcloc: null [2022-10-17 17:16:04,652 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L5834: assume __copy_to_user_#t~switch137#1;__copy_to_user_#res#1 := __copy_to_user_~ret~2#1; [2022-10-17 17:16:04,653 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L5834: assume !__copy_to_user_#t~switch137#1;__copy_to_user_#t~switch137#1 := __copy_to_user_#t~switch137#1 || 8 == __copy_to_user_~size#1; [2022-10-17 17:16:04,653 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L5867-1: __copy_to_user_~tmp___2~4#1 := __copy_to_user_#t~ret140#1;havoc __copy_to_user_#t~ret140#1;__copy_to_user_#res#1 := (if __copy_to_user_~tmp___2~4#1 % 18446744073709551616 % 4294967296 <= 2147483647 then __copy_to_user_~tmp___2~4#1 % 18446744073709551616 % 4294967296 else __copy_to_user_~tmp___2~4#1 % 18446744073709551616 % 4294967296 - 4294967296); [2022-10-17 17:16:04,653 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L5830: assume __copy_to_user_#t~switch137#1;__copy_to_user_#res#1 := __copy_to_user_~ret~2#1; [2022-10-17 17:16:04,653 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L5830: assume !__copy_to_user_#t~switch137#1;__copy_to_user_#t~switch137#1 := __copy_to_user_#t~switch137#1 || 4 == __copy_to_user_~size#1; [2022-10-17 17:16:04,653 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1: assume __copy_to_user_#t~switch137#1;__copy_to_user_#res#1 := __copy_to_user_~ret~2#1; [2022-10-17 17:16:04,653 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2: assume !__copy_to_user_#t~switch137#1;__copy_to_user_#t~switch137#1 := __copy_to_user_#t~switch137#1 || 2 == __copy_to_user_~size#1; [2022-10-17 17:16:07,575 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L5785: SUMMARY for call __copy_from_user_#t~ret133#1 := ldv__builtin_expect((if 0 != __copy_from_user_~ret~1#1 then 1 else 0), 0); srcloc: null [2022-10-17 17:16:07,576 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L5785-1: assume -9223372036854775808 <= __copy_from_user_#t~ret133#1 && __copy_from_user_#t~ret133#1 <= 9223372036854775807;__copy_from_user_~tmp___0~5#1 := __copy_from_user_#t~ret133#1;havoc __copy_from_user_#t~ret133#1; [2022-10-17 17:16:07,576 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L5786: assume 0 != __copy_from_user_~tmp___0~5#1;__copy_from_user_#res#1 := __copy_from_user_~ret~1#1; [2022-10-17 17:16:07,576 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L5786: assume !(0 != __copy_from_user_~tmp___0~5#1);__copy_from_user_#res#1 := __copy_from_user_~ret~1#1; [2022-10-17 17:16:07,576 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L5760: havoc __copy_from_user_#t~switch132#1; [2022-10-17 17:16:07,576 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L5794: assume __copy_from_user_#t~switch132#1; [2022-10-17 17:16:07,576 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L5794: assume !__copy_from_user_#t~switch132#1;__copy_from_user_#t~switch132#1 := true; [2022-10-17 17:16:07,577 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L5798: SUMMARY for call __copy_from_user_#t~ret134#1 := ldv__builtin_expect((if 0 != __copy_from_user_~ret~1#1 then 1 else 0), 0); srcloc: null [2022-10-17 17:16:07,577 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L5798-1: assume -9223372036854775808 <= __copy_from_user_#t~ret134#1 && __copy_from_user_#t~ret134#1 <= 9223372036854775807;__copy_from_user_~tmp___1~2#1 := __copy_from_user_#t~ret134#1;havoc __copy_from_user_#t~ret134#1; [2022-10-17 17:16:07,577 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L5799: assume 0 != __copy_from_user_~tmp___1~2#1;__copy_from_user_#res#1 := __copy_from_user_~ret~1#1; [2022-10-17 17:16:07,577 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L5799: assume !(0 != __copy_from_user_~tmp___1~2#1);__copy_from_user_#res#1 := __copy_from_user_~ret~1#1; [2022-10-17 17:16:07,577 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L5766: assume __copy_from_user_#t~switch132#1;__copy_from_user_#res#1 := __copy_from_user_~ret~1#1; [2022-10-17 17:16:07,577 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L5766: assume !__copy_from_user_#t~switch132#1;__copy_from_user_#t~switch132#1 := __copy_from_user_#t~switch132#1 || 4 == __copy_from_user_~size#1; [2022-10-17 17:16:07,577 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L5771: assume __copy_from_user_#t~switch132#1;__copy_from_user_#res#1 := __copy_from_user_~ret~1#1; [2022-10-17 17:16:07,578 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L5771: assume !__copy_from_user_#t~switch132#1;__copy_from_user_#t~switch132#1 := __copy_from_user_#t~switch132#1 || 8 == __copy_from_user_~size#1; [2022-10-17 17:16:07,578 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##75: assume !__copy_from_user_#t~switch132#1;__copy_from_user_#t~switch132#1 := __copy_from_user_#t~switch132#1 || 2 == __copy_from_user_~size#1; [2022-10-17 17:16:07,578 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##74: assume __copy_from_user_#t~switch132#1;__copy_from_user_#res#1 := __copy_from_user_~ret~1#1; [2022-10-17 17:16:07,578 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L5807: assume __copy_from_user_#t~switch132#1; [2022-10-17 17:16:07,578 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L5807: assume !__copy_from_user_#t~switch132#1; [2022-10-17 17:16:07,578 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L5808-1: __copy_from_user_~tmp___2~3#1 := __copy_from_user_#t~ret135#1;havoc __copy_from_user_#t~ret135#1;__copy_from_user_#res#1 := (if __copy_from_user_~tmp___2~3#1 % 18446744073709551616 % 4294967296 <= 2147483647 then __copy_from_user_~tmp___2~3#1 % 18446744073709551616 % 4294967296 else __copy_from_user_~tmp___2~3#1 % 18446744073709551616 % 4294967296 - 4294967296); [2022-10-17 17:16:07,578 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L5808: SUMMARY for call __copy_from_user_#t~ret135#1 := copy_user_generic(__copy_from_user_~dst#1.base, __copy_from_user_~dst#1.offset, __copy_from_user_~src#1.base, __copy_from_user_~src#1.offset, __copy_from_user_~size#1); srcloc: null [2022-10-17 17:16:07,579 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L5776: assume __copy_from_user_#t~switch132#1;__copy_from_user_#res#1 := __copy_from_user_~ret~1#1; [2022-10-17 17:16:07,579 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L5776: assume !__copy_from_user_#t~switch132#1;__copy_from_user_#t~switch132#1 := __copy_from_user_#t~switch132#1 || 10 == __copy_from_user_~size#1; [2022-10-17 17:16:07,579 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L5781: assume __copy_from_user_#t~switch132#1; [2022-10-17 17:16:07,579 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L5781: assume !__copy_from_user_#t~switch132#1;__copy_from_user_#t~switch132#1 := __copy_from_user_#t~switch132#1 || 16 == __copy_from_user_~size#1; [2022-10-17 17:16:08,927 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 17:16:10,880 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 17:16:10,880 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-17 17:16:10,886 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 05:16:10 BoogieIcfgContainer [2022-10-17 17:16:10,887 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 17:16:10,889 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-17 17:16:10,889 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-17 17:16:10,893 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-17 17:16:10,893 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 05:15:54" (1/3) ... [2022-10-17 17:16:10,894 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30de11a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 05:16:10, skipping insertion in model container [2022-10-17 17:16:10,895 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:15:57" (2/3) ... [2022-10-17 17:16:10,895 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30de11a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 05:16:10, skipping insertion in model container [2022-10-17 17:16:10,895 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 05:16:10" (3/3) ... [2022-10-17 17:16:10,897 INFO L112 eAbstractionObserver]: Analyzing ICFG main1_drivers-vhost-vhost_net-ko--32_7a--linux-3.7.3.i [2022-10-17 17:16:10,919 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-17 17:16:10,919 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-10-17 17:16:11,055 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-17 17:16:11,066 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@68df300b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-17 17:16:11,066 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-17 17:16:11,080 INFO L276 IsEmpty]: Start isEmpty. Operand has 1814 states, 1125 states have (on average 1.3217777777777777) internal successors, (1487), 1171 states have internal predecessors, (1487), 579 states have call successors, (579), 108 states have call predecessors, (579), 108 states have return successors, (579), 574 states have call predecessors, (579), 579 states have call successors, (579) [2022-10-17 17:16:11,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-17 17:16:11,093 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 17:16:11,093 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 17:16:11,094 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 17:16:11,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 17:16:11,102 INFO L85 PathProgramCache]: Analyzing trace with hash 44084097, now seen corresponding path program 1 times [2022-10-17 17:16:11,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-10-17 17:16:11,113 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495359682] [2022-10-17 17:16:11,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 17:16:11,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:16:11,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:16:11,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 17:16:11,789 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-10-17 17:16:11,789 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495359682] [2022-10-17 17:16:11,790 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [495359682] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 17:16:11,790 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 17:16:11,791 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-17 17:16:11,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270353254] [2022-10-17 17:16:11,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 17:16:11,799 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 17:16:11,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-10-17 17:16:11,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 17:16:11,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 17:16:11,852 INFO L87 Difference]: Start difference. First operand has 1814 states, 1125 states have (on average 1.3217777777777777) internal successors, (1487), 1171 states have internal predecessors, (1487), 579 states have call successors, (579), 108 states have call predecessors, (579), 108 states have return successors, (579), 574 states have call predecessors, (579), 579 states have call successors, (579) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-17 17:16:14,204 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-17 17:16:16,660 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-17 17:16:17,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 17:16:17,227 INFO L93 Difference]: Finished difference Result 3639 states and 5371 transitions. [2022-10-17 17:16:17,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 17:16:17,230 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 10 [2022-10-17 17:16:17,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 17:16:17,262 INFO L225 Difference]: With dead ends: 3639 [2022-10-17 17:16:17,262 INFO L226 Difference]: Without dead ends: 1823 [2022-10-17 17:16:17,281 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 17:16:17,285 INFO L413 NwaCegarLoop]: 2417 mSDtfsCounter, 2605 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2614 SdHoareTripleChecker+Valid, 2443 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 234 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-10-17 17:16:17,286 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2614 Valid, 2443 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 234 Invalid, 2 Unknown, 0 Unchecked, 5.0s Time] [2022-10-17 17:16:17,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1823 states. [2022-10-17 17:16:17,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1823 to 1820. [2022-10-17 17:16:17,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1820 states, 1127 states have (on average 1.3149955634427684) internal successors, (1482), 1170 states have internal predecessors, (1482), 580 states have call successors, (580), 113 states have call predecessors, (580), 112 states have return successors, (575), 570 states have call predecessors, (575), 575 states have call successors, (575) [2022-10-17 17:16:17,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1820 states to 1820 states and 2637 transitions. [2022-10-17 17:16:17,537 INFO L78 Accepts]: Start accepts. Automaton has 1820 states and 2637 transitions. Word has length 10 [2022-10-17 17:16:17,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 17:16:17,538 INFO L495 AbstractCegarLoop]: Abstraction has 1820 states and 2637 transitions. [2022-10-17 17:16:17,538 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-17 17:16:17,538 INFO L276 IsEmpty]: Start isEmpty. Operand 1820 states and 2637 transitions. [2022-10-17 17:16:17,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-10-17 17:16:17,539 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 17:16:17,540 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 17:16:17,540 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-17 17:16:17,540 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 17:16:17,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 17:16:17,541 INFO L85 PathProgramCache]: Analyzing trace with hash 1365578142, now seen corresponding path program 1 times [2022-10-17 17:16:17,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-10-17 17:16:17,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279587753] [2022-10-17 17:16:17,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 17:16:17,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:16:17,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:16:17,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 17:16:17,671 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-10-17 17:16:17,672 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1279587753] [2022-10-17 17:16:17,672 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1279587753] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 17:16:17,672 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 17:16:17,672 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-17 17:16:17,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604328445] [2022-10-17 17:16:17,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 17:16:17,674 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 17:16:17,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-10-17 17:16:17,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 17:16:17,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 17:16:17,675 INFO L87 Difference]: Start difference. First operand 1820 states and 2637 transitions. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-17 17:16:19,965 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-17 17:16:22,231 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-17 17:16:22,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 17:16:22,846 INFO L93 Difference]: Finished difference Result 1825 states and 2647 transitions. [2022-10-17 17:16:22,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 17:16:22,847 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2022-10-17 17:16:22,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 17:16:22,863 INFO L225 Difference]: With dead ends: 1825 [2022-10-17 17:16:22,863 INFO L226 Difference]: Without dead ends: 1822 [2022-10-17 17:16:22,866 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 17:16:22,868 INFO L413 NwaCegarLoop]: 2406 mSDtfsCounter, 2594 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 233 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2603 SdHoareTripleChecker+Valid, 2430 SdHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 233 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-10-17 17:16:22,869 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2603 Valid, 2430 Invalid, 235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 233 Invalid, 2 Unknown, 0 Unchecked, 5.0s Time] [2022-10-17 17:16:22,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1822 states. [2022-10-17 17:16:23,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1822 to 1819. [2022-10-17 17:16:23,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1819 states, 1127 states have (on average 1.3141082519964506) internal successors, (1481), 1169 states have internal predecessors, (1481), 579 states have call successors, (579), 113 states have call predecessors, (579), 112 states have return successors, (575), 570 states have call predecessors, (575), 575 states have call successors, (575) [2022-10-17 17:16:23,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1819 states to 1819 states and 2635 transitions. [2022-10-17 17:16:23,029 INFO L78 Accepts]: Start accepts. Automaton has 1819 states and 2635 transitions. Word has length 11 [2022-10-17 17:16:23,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 17:16:23,030 INFO L495 AbstractCegarLoop]: Abstraction has 1819 states and 2635 transitions. [2022-10-17 17:16:23,030 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-17 17:16:23,030 INFO L276 IsEmpty]: Start isEmpty. Operand 1819 states and 2635 transitions. [2022-10-17 17:16:23,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-10-17 17:16:23,031 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 17:16:23,031 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 17:16:23,031 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-17 17:16:23,033 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 17:16:23,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 17:16:23,043 INFO L85 PathProgramCache]: Analyzing trace with hash -617774556, now seen corresponding path program 1 times [2022-10-17 17:16:23,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-10-17 17:16:23,044 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382785467] [2022-10-17 17:16:23,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 17:16:23,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:16:23,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:16:23,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 17:16:23,236 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-10-17 17:16:23,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [382785467] [2022-10-17 17:16:23,236 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [382785467] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 17:16:23,237 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 17:16:23,237 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-17 17:16:23,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051902427] [2022-10-17 17:16:23,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 17:16:23,238 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 17:16:23,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-10-17 17:16:23,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 17:16:23,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 17:16:23,239 INFO L87 Difference]: Start difference. First operand 1819 states and 2635 transitions. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-17 17:16:25,423 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-17 17:16:26,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 17:16:26,120 INFO L93 Difference]: Finished difference Result 1821 states and 2636 transitions. [2022-10-17 17:16:26,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 17:16:26,121 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2022-10-17 17:16:26,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 17:16:26,138 INFO L225 Difference]: With dead ends: 1821 [2022-10-17 17:16:26,138 INFO L226 Difference]: Without dead ends: 1818 [2022-10-17 17:16:26,140 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 17:16:26,141 INFO L413 NwaCegarLoop]: 2398 mSDtfsCounter, 2612 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2614 SdHoareTripleChecker+Valid, 2398 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 223 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-10-17 17:16:26,142 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2614 Valid, 2398 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 223 Invalid, 1 Unknown, 0 Unchecked, 2.7s Time] [2022-10-17 17:16:26,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1818 states.