./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_all.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efd46924-ded4-4ffb-8af9-ab6232fb45f2/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efd46924-ded4-4ffb-8af9-ab6232fb45f2/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efd46924-ded4-4ffb-8af9-ab6232fb45f2/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efd46924-ded4-4ffb-8af9-ab6232fb45f2/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_all.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efd46924-ded4-4ffb-8af9-ab6232fb45f2/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efd46924-ded4-4ffb-8af9-ab6232fb45f2/bin/utaipan-I9t0OCRTmS --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 32bit --witnessprinter.graph.data.programhash a564ea576763c13bfd3673da7d9fb82b1799f9ec9208539e745949eb812373cd --- 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-8393723 [2022-11-19 07:03:15,782 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 07:03:15,784 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 07:03:15,802 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 07:03:15,802 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 07:03:15,804 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 07:03:15,805 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 07:03:15,807 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 07:03:15,808 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 07:03:15,809 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 07:03:15,811 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 07:03:15,812 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 07:03:15,812 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 07:03:15,813 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 07:03:15,815 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 07:03:15,816 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 07:03:15,817 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 07:03:15,818 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 07:03:15,820 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 07:03:15,822 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 07:03:15,824 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 07:03:15,827 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 07:03:15,828 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 07:03:15,829 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 07:03:15,833 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 07:03:15,833 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 07:03:15,833 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 07:03:15,834 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 07:03:15,835 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 07:03:15,836 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 07:03:15,836 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 07:03:15,837 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 07:03:15,838 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 07:03:15,839 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 07:03:15,840 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 07:03:15,841 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 07:03:15,841 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 07:03:15,842 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 07:03:15,842 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 07:03:15,843 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 07:03:15,844 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 07:03:15,845 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efd46924-ded4-4ffb-8af9-ab6232fb45f2/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-19 07:03:15,866 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 07:03:15,866 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 07:03:15,866 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 07:03:15,867 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 07:03:15,867 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 07:03:15,868 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 07:03:15,868 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 07:03:15,868 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 07:03:15,869 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 07:03:15,869 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 07:03:15,869 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 07:03:15,870 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 07:03:15,870 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 07:03:15,870 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 07:03:15,870 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 07:03:15,871 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 07:03:15,871 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 07:03:15,871 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 07:03:15,872 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 07:03:15,872 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 07:03:15,873 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 07:03:15,873 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 07:03:15,873 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 07:03:15,873 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 07:03:15,873 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 07:03:15,874 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 07:03:15,874 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 07:03:15,874 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 07:03:15,874 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 07:03:15,875 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 07:03:15,875 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 07:03:15,875 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 07:03:15,875 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:03:15,876 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 07:03:15,876 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 07:03:15,876 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 07:03:15,876 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 07:03:15,876 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 07:03:15,877 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 07:03:15,877 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 07:03:15,877 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 07:03:15,877 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_efd46924-ded4-4ffb-8af9-ab6232fb45f2/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efd46924-ded4-4ffb-8af9-ab6232fb45f2/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a564ea576763c13bfd3673da7d9fb82b1799f9ec9208539e745949eb812373cd [2022-11-19 07:03:16,116 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 07:03:16,143 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 07:03:16,146 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 07:03:16,147 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 07:03:16,148 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 07:03:16,150 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efd46924-ded4-4ffb-8af9-ab6232fb45f2/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_all.i [2022-11-19 07:03:16,222 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efd46924-ded4-4ffb-8af9-ab6232fb45f2/bin/utaipan-I9t0OCRTmS/data/b82ecbf4d/1c735ee248a14cf9b617cb85628cd596/FLAGc2039721a [2022-11-19 07:03:16,875 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 07:03:16,880 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efd46924-ded4-4ffb-8af9-ab6232fb45f2/sv-benchmarks/c/ddv-machzwd/ddv_machzwd_all.i [2022-11-19 07:03:16,931 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efd46924-ded4-4ffb-8af9-ab6232fb45f2/bin/utaipan-I9t0OCRTmS/data/b82ecbf4d/1c735ee248a14cf9b617cb85628cd596/FLAGc2039721a [2022-11-19 07:03:17,037 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efd46924-ded4-4ffb-8af9-ab6232fb45f2/bin/utaipan-I9t0OCRTmS/data/b82ecbf4d/1c735ee248a14cf9b617cb85628cd596 [2022-11-19 07:03:17,039 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 07:03:17,041 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 07:03:17,042 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 07:03:17,042 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 07:03:17,046 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 07:03:17,047 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:03:17" (1/1) ... [2022-11-19 07:03:17,048 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fa07fa9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:03:17, skipping insertion in model container [2022-11-19 07:03:17,048 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:03:17" (1/1) ... [2022-11-19 07:03:17,055 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 07:03:17,163 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 07:03:17,465 WARN L234 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_efd46924-ded4-4ffb-8af9-ab6232fb45f2/sv-benchmarks/c/ddv-machzwd/ddv_machzwd_all.i[452,465] [2022-11-19 07:03:18,588 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:03:18,619 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 07:03:18,631 WARN L234 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_efd46924-ded4-4ffb-8af9-ab6232fb45f2/sv-benchmarks/c/ddv-machzwd/ddv_machzwd_all.i[452,465] [2022-11-19 07:03:18,913 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:03:19,053 INFO L208 MainTranslator]: Completed translation [2022-11-19 07:03:19,054 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:03:19 WrapperNode [2022-11-19 07:03:19,054 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 07:03:19,056 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 07:03:19,056 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 07:03:19,056 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 07:03:19,065 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:03:19" (1/1) ... [2022-11-19 07:03:19,145 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:03:19" (1/1) ... [2022-11-19 07:03:19,210 INFO L138 Inliner]: procedures = 476, calls = 866, calls flagged for inlining = 55, calls inlined = 37, statements flattened = 1023 [2022-11-19 07:03:19,210 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 07:03:19,211 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 07:03:19,211 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 07:03:19,212 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 07:03:19,221 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:03:19" (1/1) ... [2022-11-19 07:03:19,230 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:03:19" (1/1) ... [2022-11-19 07:03:19,240 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:03:19" (1/1) ... [2022-11-19 07:03:19,254 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:03:19" (1/1) ... [2022-11-19 07:03:19,319 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:03:19" (1/1) ... [2022-11-19 07:03:19,325 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:03:19" (1/1) ... [2022-11-19 07:03:19,332 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:03:19" (1/1) ... [2022-11-19 07:03:19,355 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:03:19" (1/1) ... [2022-11-19 07:03:19,364 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 07:03:19,365 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 07:03:19,365 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 07:03:19,365 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 07:03:19,367 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:03:19" (1/1) ... [2022-11-19 07:03:19,382 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:03:19,394 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efd46924-ded4-4ffb-8af9-ab6232fb45f2/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:03:19,412 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efd46924-ded4-4ffb-8af9-ab6232fb45f2/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 07:03:19,426 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efd46924-ded4-4ffb-8af9-ab6232fb45f2/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 07:03:19,459 INFO L130 BoogieDeclarations]: Found specification of procedure zf_timer_off [2022-11-19 07:03:19,460 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_timer_off [2022-11-19 07:03:19,460 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-19 07:03:19,460 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_atomic_begin [2022-11-19 07:03:19,460 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-19 07:03:19,460 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-19 07:03:19,461 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 07:03:19,461 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-19 07:03:19,461 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-19 07:03:19,461 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-19 07:03:19,461 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_atomic_end [2022-11-19 07:03:19,461 INFO L130 BoogieDeclarations]: Found specification of procedure zf_get_control [2022-11-19 07:03:19,462 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_get_control [2022-11-19 07:03:19,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-19 07:03:19,462 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-19 07:03:19,462 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-19 07:03:19,462 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-19 07:03:19,462 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-19 07:03:19,463 INFO L130 BoogieDeclarations]: Found specification of procedure request_region [2022-11-19 07:03:19,463 INFO L138 BoogieDeclarations]: Found implementation of procedure request_region [2022-11-19 07:03:19,463 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 07:03:19,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-19 07:03:19,463 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-19 07:03:19,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-19 07:03:19,464 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irqsave [2022-11-19 07:03:19,464 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irqsave [2022-11-19 07:03:19,464 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2022-11-19 07:03:19,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2022-11-19 07:03:19,465 INFO L130 BoogieDeclarations]: Found specification of procedure release_region [2022-11-19 07:03:19,465 INFO L138 BoogieDeclarations]: Found implementation of procedure release_region [2022-11-19 07:03:19,466 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 07:03:19,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 07:03:19,467 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_init [2022-11-19 07:03:19,467 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_init [2022-11-19 07:03:19,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-19 07:03:19,468 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-19 07:03:19,468 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-19 07:03:19,468 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2022-11-19 07:03:19,468 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2022-11-19 07:03:19,468 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 07:03:19,468 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-19 07:03:19,469 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2022-11-19 07:03:19,469 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2022-11-19 07:03:19,469 INFO L130 BoogieDeclarations]: Found specification of procedure cdev_add [2022-11-19 07:03:19,469 INFO L138 BoogieDeclarations]: Found implementation of procedure cdev_add [2022-11-19 07:03:19,470 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~TO~int [2022-11-19 07:03:19,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~TO~int [2022-11-19 07:03:19,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-19 07:03:19,472 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2022-11-19 07:03:19,473 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2022-11-19 07:03:19,473 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2022-11-19 07:03:19,473 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2022-11-19 07:03:19,473 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2022-11-19 07:03:19,474 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2022-11-19 07:03:19,474 INFO L130 BoogieDeclarations]: Found specification of procedure misc_deregister [2022-11-19 07:03:19,474 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_deregister [2022-11-19 07:03:19,474 INFO L130 BoogieDeclarations]: Found specification of procedure assert_context_process [2022-11-19 07:03:19,474 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_context_process [2022-11-19 07:03:19,474 INFO L130 BoogieDeclarations]: Found specification of procedure zf_set_control [2022-11-19 07:03:19,475 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_set_control [2022-11-19 07:03:19,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 07:03:19,475 INFO L130 BoogieDeclarations]: Found specification of procedure zf_readw [2022-11-19 07:03:19,475 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_readw [2022-11-19 07:03:19,475 INFO L130 BoogieDeclarations]: Found specification of procedure zf_ping [2022-11-19 07:03:19,475 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_ping [2022-11-19 07:03:19,475 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~TO~int [2022-11-19 07:03:19,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~TO~int [2022-11-19 07:03:19,476 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-19 07:03:19,476 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-19 07:03:19,476 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-19 07:03:19,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-19 07:03:19,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 07:03:19,883 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 07:03:19,886 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 07:03:21,961 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 07:03:22,261 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 07:03:22,261 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-19 07:03:22,264 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:03:22 BoogieIcfgContainer [2022-11-19 07:03:22,264 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 07:03:22,266 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 07:03:22,267 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 07:03:22,270 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 07:03:22,270 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:03:17" (1/3) ... [2022-11-19 07:03:22,271 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a21223c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:03:22, skipping insertion in model container [2022-11-19 07:03:22,271 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:03:19" (2/3) ... [2022-11-19 07:03:22,272 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a21223c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:03:22, skipping insertion in model container [2022-11-19 07:03:22,272 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:03:22" (3/3) ... [2022-11-19 07:03:22,273 INFO L112 eAbstractionObserver]: Analyzing ICFG ddv_machzwd_all.i [2022-11-19 07:03:22,292 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 07:03:22,292 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 07:03:22,348 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 07:03:22,354 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;@243fdeba, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 07:03:22,354 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 07:03:22,359 INFO L276 IsEmpty]: Start isEmpty. Operand has 273 states, 163 states have (on average 1.3496932515337423) internal successors, (220), 170 states have internal predecessors, (220), 81 states have call successors, (81), 27 states have call predecessors, (81), 27 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2022-11-19 07:03:22,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-19 07:03:22,367 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:03:22,368 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:03:22,368 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:03:22,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:03:22,373 INFO L85 PathProgramCache]: Analyzing trace with hash -157846049, now seen corresponding path program 1 times [2022-11-19 07:03:22,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:03:22,383 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009254962] [2022-11-19 07:03:22,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:03:22,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:03:22,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:03:22,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:03:22,997 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:03:22,998 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009254962] [2022-11-19 07:03:23,002 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2009254962] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:03:23,002 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:03:23,002 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:03:23,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607978959] [2022-11-19 07:03:23,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:03:23,013 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:03:23,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:03:23,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:03:23,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:03:23,061 INFO L87 Difference]: Start difference. First operand has 273 states, 163 states have (on average 1.3496932515337423) internal successors, (220), 170 states have internal predecessors, (220), 81 states have call successors, (81), 27 states have call predecessors, (81), 27 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-19 07:03:24,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:03:24,236 INFO L93 Difference]: Finished difference Result 544 states and 797 transitions. [2022-11-19 07:03:24,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:03:24,239 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 19 [2022-11-19 07:03:24,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:03:24,250 INFO L225 Difference]: With dead ends: 544 [2022-11-19 07:03:24,250 INFO L226 Difference]: Without dead ends: 269 [2022-11-19 07:03:24,256 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 [2022-11-19 07:03:24,265 INFO L413 NwaCegarLoop]: 328 mSDtfsCounter, 0 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 655 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-19 07:03:24,266 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 655 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-19 07:03:24,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2022-11-19 07:03:24,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 269. [2022-11-19 07:03:24,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 269 states, 162 states have (on average 1.3333333333333333) internal successors, (216), 169 states have internal predecessors, (216), 79 states have call successors, (79), 27 states have call predecessors, (79), 27 states have return successors, (78), 78 states have call predecessors, (78), 78 states have call successors, (78) [2022-11-19 07:03:24,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 373 transitions. [2022-11-19 07:03:24,368 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 373 transitions. Word has length 19 [2022-11-19 07:03:24,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:03:24,371 INFO L495 AbstractCegarLoop]: Abstraction has 269 states and 373 transitions. [2022-11-19 07:03:24,371 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-19 07:03:24,371 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 373 transitions. [2022-11-19 07:03:24,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-19 07:03:24,373 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:03:24,373 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:03:24,373 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 07:03:24,374 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:03:24,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:03:24,375 INFO L85 PathProgramCache]: Analyzing trace with hash 1054272383, now seen corresponding path program 1 times [2022-11-19 07:03:24,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:03:24,375 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601569643] [2022-11-19 07:03:24,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:03:24,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:03:24,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:03:24,678 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-19 07:03:24,678 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:03:24,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601569643] [2022-11-19 07:03:24,679 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1601569643] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:03:24,679 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1563152961] [2022-11-19 07:03:24,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:03:24,679 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:03:24,680 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efd46924-ded4-4ffb-8af9-ab6232fb45f2/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:03:24,686 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efd46924-ded4-4ffb-8af9-ab6232fb45f2/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:03:24,694 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efd46924-ded4-4ffb-8af9-ab6232fb45f2/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-19 07:03:25,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:03:25,146 INFO L263 TraceCheckSpWp]: Trace formula consists of 913 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 07:03:25,152 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:03:25,218 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-19 07:03:25,218 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:03:25,255 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-19 07:03:25,255 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1563152961] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:03:25,255 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [899907621] [2022-11-19 07:03:25,274 INFO L159 IcfgInterpreter]: Started Sifa with 20 locations of interest [2022-11-19 07:03:25,274 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 07:03:25,277 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 07:03:25,283 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 07:03:25,283 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 07:03:26,153 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 12 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 21 [2022-11-19 07:03:26,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:26,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:26,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:26,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:26,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:26,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:26,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:26,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:26,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:26,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:26,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:26,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:26,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:26,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:26,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:26,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:26,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:26,346 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 46 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 105 treesize of output 122 [2022-11-19 07:03:26,451 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 45 disjoint index pairs (out of 45 index pairs), introduced 11 new quantified variables, introduced 0 case distinctions, treesize of input 141 treesize of output 162 [2022-11-19 07:03:26,578 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 91 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 129 treesize of output 162 [2022-11-19 07:03:26,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:26,667 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 17 [2022-11-19 07:03:26,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:26,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:26,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:26,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:26,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:26,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:26,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:26,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:26,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:26,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:26,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:26,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:26,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:26,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:26,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:26,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:26,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:26,855 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 46 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 105 treesize of output 122 [2022-11-19 07:03:26,959 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 45 disjoint index pairs (out of 45 index pairs), introduced 11 new quantified variables, introduced 0 case distinctions, treesize of input 141 treesize of output 162 [2022-11-19 07:03:27,077 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 91 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 129 treesize of output 162 [2022-11-19 07:03:27,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:27,194 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 17 [2022-11-19 07:03:27,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:27,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:27,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:27,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:27,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:27,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:27,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:27,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:27,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:27,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:27,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:27,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:27,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:27,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:27,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:27,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:27,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:27,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:27,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:27,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:27,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:27,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:27,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:27,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:27,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:27,888 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 14 select indices, 14 select index equivalence classes, 210 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 0 case distinctions, treesize of input 346 treesize of output 348 [2022-11-19 07:03:28,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:28,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:28,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:28,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:28,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:28,049 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 15 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 53 [2022-11-19 07:03:29,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:29,286 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-19 07:03:29,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:29,291 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2022-11-19 07:03:29,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:29,305 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-19 07:03:29,908 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 15 select indices, 15 select index equivalence classes, 105 disjoint index pairs (out of 105 index pairs), introduced 15 new quantified variables, introduced 0 case distinctions, treesize of input 156 treesize of output 120 [2022-11-19 07:03:29,951 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-19 07:03:29,987 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-19 07:03:30,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:30,024 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2022-11-19 07:03:30,062 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-19 07:03:30,098 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-19 07:03:30,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:30,147 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2022-11-19 07:03:30,260 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 15 select indices, 15 select index equivalence classes, 105 disjoint index pairs (out of 105 index pairs), introduced 15 new quantified variables, introduced 0 case distinctions, treesize of input 156 treesize of output 120 [2022-11-19 07:03:30,296 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-19 07:03:30,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:30,337 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2022-11-19 07:03:30,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:30,377 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2022-11-19 07:03:30,414 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-19 07:03:30,449 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-19 07:03:30,482 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-19 07:03:30,625 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 22 select indices, 22 select index equivalence classes, 231 disjoint index pairs (out of 231 index pairs), introduced 22 new quantified variables, introduced 0 case distinctions, treesize of input 351 treesize of output 257 [2022-11-19 07:03:30,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:30,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:30,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:30,671 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 13 [2022-11-19 07:03:30,705 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-19 07:03:30,736 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-19 07:03:30,769 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-19 07:03:30,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:30,806 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2022-11-19 07:03:30,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:30,850 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2022-11-19 07:03:30,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:30,886 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2022-11-19 07:03:30,921 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-19 07:03:30,956 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-19 07:03:32,515 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 22 select indices, 22 select index equivalence classes, 231 disjoint index pairs (out of 231 index pairs), introduced 22 new quantified variables, introduced 0 case distinctions, treesize of input 351 treesize of output 257 [2022-11-19 07:03:32,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:32,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:32,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:32,563 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 13 [2022-11-19 07:03:32,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:32,604 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2022-11-19 07:03:32,636 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-19 07:03:32,671 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-19 07:03:32,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:32,703 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2022-11-19 07:03:32,743 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-19 07:03:32,774 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-19 07:03:32,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:32,806 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2022-11-19 07:03:32,838 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-19 07:03:32,890 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 15 select indices, 15 select index equivalence classes, 105 disjoint index pairs (out of 105 index pairs), introduced 15 new quantified variables, introduced 0 case distinctions, treesize of input 156 treesize of output 120 [2022-11-19 07:03:32,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:32,928 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2022-11-19 07:03:32,962 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-19 07:03:32,997 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-19 07:03:33,032 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-19 07:03:33,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:33,075 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2022-11-19 07:03:33,112 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-19 07:03:33,211 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 15 select indices, 15 select index equivalence classes, 105 disjoint index pairs (out of 105 index pairs), introduced 15 new quantified variables, introduced 0 case distinctions, treesize of input 156 treesize of output 120 [2022-11-19 07:03:33,243 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-19 07:03:33,274 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-19 07:03:33,304 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-19 07:03:33,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:33,336 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2022-11-19 07:03:33,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:33,370 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2022-11-19 07:03:33,401 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-19 07:03:34,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:34,377 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 23 [2022-11-19 07:03:34,459 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-19 07:03:34,520 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-19 07:03:36,157 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 2250 treesize of output 2249 [2022-11-19 07:03:36,392 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 2250 treesize of output 2249 [2022-11-19 07:03:36,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:36,611 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 2259 treesize of output 2230 [2022-11-19 07:03:37,787 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2022-11-19 07:03:37,802 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-19 07:03:37,822 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-19 07:03:37,887 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 25 [2022-11-19 07:03:37,910 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 12 [2022-11-19 07:03:37,940 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 12 [2022-11-19 07:03:38,219 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 25 [2022-11-19 07:03:38,246 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 12 [2022-11-19 07:03:38,275 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 12 [2022-11-19 07:03:39,484 INFO L197 IcfgInterpreter]: Interpreting procedure printk with input of size 165 for LOIs [2022-11-19 07:03:39,503 INFO L197 IcfgInterpreter]: Interpreting procedure spin_lock_init with input of size 828 for LOIs [2022-11-19 07:03:40,244 INFO L197 IcfgInterpreter]: Interpreting procedure zf_readw with input of size 163 for LOIs [2022-11-19 07:03:40,278 INFO L197 IcfgInterpreter]: Interpreting procedure outb with input of size 166 for LOIs [2022-11-19 07:03:40,306 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 176 for LOIs [2022-11-19 07:03:40,345 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 07:03:50,696 WARN L233 SmtUtils]: Spent 9.59s on a formula simplification. DAG size of input: 818 DAG size of output: 722 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:04:00,759 WARN L233 SmtUtils]: Spent 9.90s on a formula simplification. DAG size of input: 828 DAG size of output: 732 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:04:13,758 WARN L233 SmtUtils]: Spent 12.80s on a formula simplification. DAG size of input: 853 DAG size of output: 757 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:04:23,926 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1618#(and (= |~#zf_fops~0.offset| 0) (= 0 ~fixed_cdev_used~0) (= |~#shared_workqueue~0.offset| 0) (= |~#registered_pci_driver~0.offset| 0) (= __VERIFIER_assert_~x.base |__VERIFIER_assert_#in~x.base|) (= ~number_request_queue_used~0 0) (= |__VERIFIER_assert_#in~x.offset| __VERIFIER_assert_~x.offset) (= ~zf_action~0 2048) (= |~#timer_registered~0.offset| 0) (= |~#registered_pci_driver~0.base| 40) (= |~#global_tty_driver~0.offset| 0) (= ~ddv_ioport_request_len~0 0) (= |~#tasklet_registered~0.base| 45) (= |~#zf_info~0.base| 50) (= ~current_execution_context~0 1) (= 52 |~#fixed_gendisk~0.base|) (= ~ddv_ioport_request_start~0 0) (= ~proc_root_driver~0.offset 0) (= |~#cdev_registered~0.base| 56) (= ~proc_root_driver~0.base 0) (= |~#genhd_registered~0.base| 48) (= |~#zf_is_open~0.offset| 0) (= 0 |~#fixed_cdev~0.offset|) (= ~number_timer_registered~0 0) (= 28 |__VERIFIER_assert_#in~x.base|) (= |~#registered_irq~0.base| 41) (= |~#zf_timer~0.base| 49) (= 46 |~#fixed_request_queue~0.base|) (= |~#kernel_lock~0.base| 44) (= 53 |~#zf_lock~0.base|) (= ~jiffies~0 0) (= |~#zf_miscdev~0.base| 43) (= |~#timer_registered~0.base| 39) (= |~#registered_irq~0.offset| 0) (= ~number_tasklet_registered~0 0) (= |~#zf_notifier~0.base| 58) (= |~#zf_info~0.offset| 0) (= |~#kernel_lock~0.offset| 0) (= |~#tasklet_registered~0.offset| 0) (= ~zf_expect_close~0 0) (= |~#zf_miscdev~0.offset| 0) (= 42 |~#zf_fops~0.base|) (= (select (select |#memory_int| |~#tasklet_registered~0.base|) (+ |~#tasklet_registered~0.offset| 4)) 0) (= (ite (and (<= (mod ~ddv_ioport_request_start~0 4294967296) 536) (< 536 (mod (+ ~ddv_ioport_request_len~0 ~ddv_ioport_request_start~0) 4294967296))) 1 0) |__VERIFIER_assert_#in~expression|) (= ~next_heartbeat~0 0) (= 55 |~#shared_workqueue~0.base|) (= 0 |~#cdev_registered~0.offset|) (= |#NULL.offset| 0) (= ~nowayout~0 0) (= |__VERIFIER_assert_#in~expression| __VERIFIER_assert_~expression) (= (select (select |#memory_$Pointer$.offset| |~#tasklet_registered~0.base|) |~#tasklet_registered~0.offset|) 0) (= |~#zf_lock~0.offset| 0) (= |~#global_tty_driver~0.base| 54) (= |~#zf_port_lock~0.offset| 0) (= 47 |~#zf_is_open~0.base|) (= 51 |~#zf_port_lock~0.base|) (= |~#fixed_request_queue~0.offset| 0) (= ~number_cdev_registered~0 0) (= |~#genhd_registered~0.offset| 0) (= ~number_fixed_genhd_used~0 0) (= 0 |~#zf_notifier~0.offset|) (= (select (select |#memory_$Pointer$.base| |~#tasklet_registered~0.base|) |~#tasklet_registered~0.offset|) 0) (<= 0 |#StackHeapBarrier|) (= ~action~0 0) (= 57 |~#fixed_cdev~0.base|) (= 0 |~#zf_timer~0.offset|) (= |__VERIFIER_assert_#in~x.offset| 0) (= ~number_genhd_registered~0 0) (= |~#fixed_gendisk~0.offset| 0) (= |#NULL.base| 0))' at error location [2022-11-19 07:04:23,926 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-19 07:04:23,927 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-19 07:04:23,927 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-11-19 07:04:23,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999894874] [2022-11-19 07:04:23,928 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-19 07:04:23,929 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-19 07:04:23,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:04:23,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-19 07:04:23,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=432, Unknown=0, NotChecked=0, Total=506 [2022-11-19 07:04:23,930 INFO L87 Difference]: Start difference. First operand 269 states and 373 transitions. Second operand has 7 states, 7 states have (on average 2.857142857142857) internal successors, (20), 7 states have internal predecessors, (20), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-19 07:04:25,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:04:25,607 INFO L93 Difference]: Finished difference Result 536 states and 745 transitions. [2022-11-19 07:04:25,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 07:04:25,611 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.857142857142857) internal successors, (20), 7 states have internal predecessors, (20), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 21 [2022-11-19 07:04:25,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:04:25,614 INFO L225 Difference]: With dead ends: 536 [2022-11-19 07:04:25,614 INFO L226 Difference]: Without dead ends: 272 [2022-11-19 07:04:25,615 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 153 ImplicationChecksByTransitivity, 43.6s TimeCoverageRelationStatistics Valid=74, Invalid=432, Unknown=0, NotChecked=0, Total=506 [2022-11-19 07:04:25,616 INFO L413 NwaCegarLoop]: 322 mSDtfsCounter, 212 mSDsluCounter, 493 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 241 SdHoareTripleChecker+Valid, 815 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-19 07:04:25,617 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [241 Valid, 815 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-19 07:04:25,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2022-11-19 07:04:25,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 272. [2022-11-19 07:04:25,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 272 states, 165 states have (on average 1.3272727272727274) internal successors, (219), 172 states have internal predecessors, (219), 79 states have call successors, (79), 27 states have call predecessors, (79), 27 states have return successors, (78), 78 states have call predecessors, (78), 78 states have call successors, (78) [2022-11-19 07:04:25,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 376 transitions. [2022-11-19 07:04:25,640 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 376 transitions. Word has length 21 [2022-11-19 07:04:25,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:04:25,641 INFO L495 AbstractCegarLoop]: Abstraction has 272 states and 376 transitions. [2022-11-19 07:04:25,641 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.857142857142857) internal successors, (20), 7 states have internal predecessors, (20), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-19 07:04:25,641 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 376 transitions. [2022-11-19 07:04:25,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-19 07:04:25,642 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:04:25,642 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:04:25,654 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efd46924-ded4-4ffb-8af9-ab6232fb45f2/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-19 07:04:25,842 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efd46924-ded4-4ffb-8af9-ab6232fb45f2/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:04:25,843 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:04:25,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:04:25,843 INFO L85 PathProgramCache]: Analyzing trace with hash -865646972, now seen corresponding path program 2 times [2022-11-19 07:04:25,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:04:25,843 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969675773] [2022-11-19 07:04:25,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:04:25,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:04:25,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:04:26,228 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-19 07:04:26,228 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:04:26,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969675773] [2022-11-19 07:04:26,229 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1969675773] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:04:26,229 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [329691129] [2022-11-19 07:04:26,229 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-19 07:04:26,229 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:04:26,229 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efd46924-ded4-4ffb-8af9-ab6232fb45f2/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:04:26,231 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efd46924-ded4-4ffb-8af9-ab6232fb45f2/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:04:26,239 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efd46924-ded4-4ffb-8af9-ab6232fb45f2/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-19 07:04:27,897 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-19 07:04:27,897 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 07:04:27,905 INFO L263 TraceCheckSpWp]: Trace formula consists of 958 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-19 07:04:27,907 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:04:27,925 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-19 07:04:27,925 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:04:27,997 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-19 07:04:27,997 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [329691129] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:04:27,997 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1257097938] [2022-11-19 07:04:28,000 INFO L159 IcfgInterpreter]: Started Sifa with 20 locations of interest [2022-11-19 07:04:28,000 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 07:04:28,000 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 07:04:28,001 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 07:04:28,001 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 07:04:28,531 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 12 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 21 [2022-11-19 07:04:28,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:28,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:28,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:28,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:28,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:28,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:28,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:28,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:28,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:28,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:28,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:28,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:28,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:28,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:28,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:28,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:28,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:28,708 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 46 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 105 treesize of output 122 [2022-11-19 07:04:28,776 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 45 disjoint index pairs (out of 45 index pairs), introduced 11 new quantified variables, introduced 0 case distinctions, treesize of input 141 treesize of output 162 [2022-11-19 07:04:28,844 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 91 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 129 treesize of output 162 [2022-11-19 07:04:28,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:28,917 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 17 [2022-11-19 07:04:28,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:28,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:28,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:28,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:28,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:28,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:28,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:28,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:28,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:28,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:28,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:28,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:28,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:28,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:28,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:29,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:29,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:29,066 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 46 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 105 treesize of output 122 [2022-11-19 07:04:29,139 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 45 disjoint index pairs (out of 45 index pairs), introduced 11 new quantified variables, introduced 0 case distinctions, treesize of input 141 treesize of output 162 [2022-11-19 07:04:29,214 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 91 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 129 treesize of output 162 [2022-11-19 07:04:29,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:29,314 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 17 [2022-11-19 07:04:29,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:29,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:29,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:29,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:29,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:29,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:29,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:29,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:29,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:29,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:29,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:29,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:29,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:29,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:29,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:29,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:29,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:29,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:29,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:29,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:29,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:29,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:29,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:29,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:29,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:29,979 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 14 select indices, 14 select index equivalence classes, 210 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 0 case distinctions, treesize of input 346 treesize of output 348 [2022-11-19 07:04:30,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:30,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:30,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:30,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:30,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:30,117 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 15 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 53 [2022-11-19 07:04:31,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:31,135 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2022-11-19 07:04:31,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:31,142 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-19 07:04:31,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:31,150 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-19 07:04:31,711 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 15 select indices, 15 select index equivalence classes, 105 disjoint index pairs (out of 105 index pairs), introduced 15 new quantified variables, introduced 0 case distinctions, treesize of input 156 treesize of output 120 [2022-11-19 07:04:31,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:31,745 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2022-11-19 07:04:31,778 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-19 07:04:31,808 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-19 07:04:31,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:31,841 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2022-11-19 07:04:31,872 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-19 07:04:31,903 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-19 07:04:31,986 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 15 select indices, 15 select index equivalence classes, 105 disjoint index pairs (out of 105 index pairs), introduced 15 new quantified variables, introduced 0 case distinctions, treesize of input 156 treesize of output 120 [2022-11-19 07:04:32,019 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-19 07:04:32,050 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-19 07:04:32,082 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-19 07:04:32,115 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-19 07:04:32,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:32,149 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2022-11-19 07:04:32,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:32,187 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2022-11-19 07:04:32,254 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 22 select indices, 22 select index equivalence classes, 231 disjoint index pairs (out of 231 index pairs), introduced 22 new quantified variables, introduced 0 case distinctions, treesize of input 351 treesize of output 257 [2022-11-19 07:04:32,303 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-19 07:04:32,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:32,339 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2022-11-19 07:04:32,374 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-19 07:04:32,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:32,410 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2022-11-19 07:04:32,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:32,452 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2022-11-19 07:04:32,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:32,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:32,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:32,503 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 13 [2022-11-19 07:04:32,545 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-19 07:04:32,584 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-19 07:04:32,623 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-19 07:04:33,707 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 22 select indices, 22 select index equivalence classes, 231 disjoint index pairs (out of 231 index pairs), introduced 22 new quantified variables, introduced 0 case distinctions, treesize of input 351 treesize of output 257 [2022-11-19 07:04:33,750 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-19 07:04:33,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:33,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:33,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:33,791 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 13 [2022-11-19 07:04:33,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:33,827 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2022-11-19 07:04:33,861 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-19 07:04:33,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:33,893 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2022-11-19 07:04:33,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:33,936 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2022-11-19 07:04:33,968 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-19 07:04:34,000 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-19 07:04:34,030 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-19 07:04:34,076 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 15 select indices, 15 select index equivalence classes, 105 disjoint index pairs (out of 105 index pairs), introduced 15 new quantified variables, introduced 0 case distinctions, treesize of input 156 treesize of output 120 [2022-11-19 07:04:34,110 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-19 07:04:34,142 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-19 07:04:34,178 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-19 07:04:34,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:34,216 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2022-11-19 07:04:34,264 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-19 07:04:34,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:34,295 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2022-11-19 07:04:34,433 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 15 select indices, 15 select index equivalence classes, 105 disjoint index pairs (out of 105 index pairs), introduced 15 new quantified variables, introduced 0 case distinctions, treesize of input 156 treesize of output 120 [2022-11-19 07:04:34,470 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-19 07:04:34,502 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-19 07:04:34,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:34,537 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2022-11-19 07:04:34,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:34,573 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2022-11-19 07:04:34,604 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-19 07:04:34,636 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-19 07:04:35,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:35,307 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 23 [2022-11-19 07:04:35,421 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 07:04:35,456 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 07:04:36,968 INFO L321 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-11-19 07:04:36,969 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 2240 treesize of output 2245 [2022-11-19 07:04:37,143 INFO L321 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-11-19 07:04:37,144 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 2236 treesize of output 2241 [2022-11-19 07:04:37,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:37,291 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 2241 treesize of output 2212 [2022-11-19 07:04:40,889 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2022-11-19 07:04:40,910 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-19 07:04:40,928 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-19 07:04:41,015 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 12 [2022-11-19 07:04:41,029 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 12 [2022-11-19 07:04:41,055 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 25 [2022-11-19 07:04:41,269 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 12 [2022-11-19 07:04:41,302 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 25 [2022-11-19 07:04:41,328 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 12 [2022-11-19 07:04:42,351 INFO L197 IcfgInterpreter]: Interpreting procedure printk with input of size 165 for LOIs [2022-11-19 07:04:42,363 INFO L197 IcfgInterpreter]: Interpreting procedure spin_lock_init with input of size 828 for LOIs [2022-11-19 07:04:43,066 INFO L197 IcfgInterpreter]: Interpreting procedure zf_readw with input of size 163 for LOIs [2022-11-19 07:04:43,090 INFO L197 IcfgInterpreter]: Interpreting procedure outb with input of size 166 for LOIs [2022-11-19 07:04:43,125 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 176 for LOIs [2022-11-19 07:04:43,162 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 07:04:53,380 WARN L233 SmtUtils]: Spent 9.46s on a formula simplification. DAG size of input: 818 DAG size of output: 722 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:05:03,513 WARN L233 SmtUtils]: Spent 9.94s on a formula simplification. DAG size of input: 828 DAG size of output: 732 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:05:16,959 WARN L233 SmtUtils]: Spent 13.21s on a formula simplification. DAG size of input: 853 DAG size of output: 757 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:05:27,222 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2989#(and (= |~#zf_fops~0.offset| 0) (= 0 ~fixed_cdev_used~0) (= |~#shared_workqueue~0.offset| 0) (= |~#registered_pci_driver~0.offset| 0) (= __VERIFIER_assert_~x.base |__VERIFIER_assert_#in~x.base|) (= ~number_request_queue_used~0 0) (= |__VERIFIER_assert_#in~x.offset| __VERIFIER_assert_~x.offset) (= ~zf_action~0 2048) (= |~#timer_registered~0.offset| 0) (= |~#registered_pci_driver~0.base| 40) (= |~#global_tty_driver~0.offset| 0) (= ~ddv_ioport_request_len~0 0) (= |~#tasklet_registered~0.base| 45) (= |~#zf_info~0.base| 50) (= ~current_execution_context~0 1) (= 52 |~#fixed_gendisk~0.base|) (= ~ddv_ioport_request_start~0 0) (= ~proc_root_driver~0.offset 0) (= |~#cdev_registered~0.base| 56) (= ~proc_root_driver~0.base 0) (= |~#genhd_registered~0.base| 48) (= |~#zf_is_open~0.offset| 0) (= 0 |~#fixed_cdev~0.offset|) (= ~number_timer_registered~0 0) (= 28 |__VERIFIER_assert_#in~x.base|) (= |~#registered_irq~0.base| 41) (= |~#zf_timer~0.base| 49) (= 46 |~#fixed_request_queue~0.base|) (= |~#kernel_lock~0.base| 44) (= 53 |~#zf_lock~0.base|) (= ~jiffies~0 0) (= |~#zf_miscdev~0.base| 43) (= |~#timer_registered~0.base| 39) (= |~#registered_irq~0.offset| 0) (= ~number_tasklet_registered~0 0) (= |~#zf_notifier~0.base| 58) (= |~#zf_info~0.offset| 0) (= |~#kernel_lock~0.offset| 0) (= |~#tasklet_registered~0.offset| 0) (= ~zf_expect_close~0 0) (= |~#zf_miscdev~0.offset| 0) (= 42 |~#zf_fops~0.base|) (= (select (select |#memory_int| |~#tasklet_registered~0.base|) (+ |~#tasklet_registered~0.offset| 4)) 0) (= (ite (and (<= (mod ~ddv_ioport_request_start~0 4294967296) 536) (< 536 (mod (+ ~ddv_ioport_request_len~0 ~ddv_ioport_request_start~0) 4294967296))) 1 0) |__VERIFIER_assert_#in~expression|) (= ~next_heartbeat~0 0) (= 55 |~#shared_workqueue~0.base|) (= 0 |~#cdev_registered~0.offset|) (= |#NULL.offset| 0) (= ~nowayout~0 0) (= |__VERIFIER_assert_#in~expression| __VERIFIER_assert_~expression) (= (select (select |#memory_$Pointer$.offset| |~#tasklet_registered~0.base|) |~#tasklet_registered~0.offset|) 0) (= |~#zf_lock~0.offset| 0) (= |~#global_tty_driver~0.base| 54) (= |~#zf_port_lock~0.offset| 0) (= 47 |~#zf_is_open~0.base|) (= 51 |~#zf_port_lock~0.base|) (= |~#fixed_request_queue~0.offset| 0) (= ~number_cdev_registered~0 0) (= |~#genhd_registered~0.offset| 0) (= ~number_fixed_genhd_used~0 0) (= 0 |~#zf_notifier~0.offset|) (= (select (select |#memory_$Pointer$.base| |~#tasklet_registered~0.base|) |~#tasklet_registered~0.offset|) 0) (<= 0 |#StackHeapBarrier|) (= ~action~0 0) (= 57 |~#fixed_cdev~0.base|) (= 0 |~#zf_timer~0.offset|) (= |__VERIFIER_assert_#in~x.offset| 0) (= ~number_genhd_registered~0 0) (= |~#fixed_gendisk~0.offset| 0) (= |#NULL.base| 0))' at error location [2022-11-19 07:05:27,222 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-19 07:05:27,223 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-19 07:05:27,223 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2022-11-19 07:05:27,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797296382] [2022-11-19 07:05:27,223 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-19 07:05:27,224 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-19 07:05:27,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:05:27,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-19 07:05:27,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=149, Invalid=663, Unknown=0, NotChecked=0, Total=812 [2022-11-19 07:05:27,225 INFO L87 Difference]: Start difference. First operand 272 states and 376 transitions. Second operand has 13 states, 13 states have (on average 2.0) internal successors, (26), 13 states have internal predecessors, (26), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-19 07:05:29,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:05:29,569 INFO L93 Difference]: Finished difference Result 542 states and 754 transitions. [2022-11-19 07:05:29,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-19 07:05:29,569 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.0) internal successors, (26), 13 states have internal predecessors, (26), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 24 [2022-11-19 07:05:29,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:05:29,571 INFO L225 Difference]: With dead ends: 542 [2022-11-19 07:05:29,572 INFO L226 Difference]: Without dead ends: 278 [2022-11-19 07:05:29,573 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 318 ImplicationChecksByTransitivity, 44.1s TimeCoverageRelationStatistics Valid=149, Invalid=663, Unknown=0, NotChecked=0, Total=812 [2022-11-19 07:05:29,574 INFO L413 NwaCegarLoop]: 322 mSDtfsCounter, 318 mSDsluCounter, 785 mSDsCounter, 0 mSdLazyCounter, 243 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 347 SdHoareTripleChecker+Valid, 1107 SdHoareTripleChecker+Invalid, 318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-11-19 07:05:29,574 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [347 Valid, 1107 Invalid, 318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 243 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-11-19 07:05:29,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2022-11-19 07:05:29,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 278. [2022-11-19 07:05:29,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 278 states, 171 states have (on average 1.3157894736842106) internal successors, (225), 178 states have internal predecessors, (225), 79 states have call successors, (79), 27 states have call predecessors, (79), 27 states have return successors, (78), 78 states have call predecessors, (78), 78 states have call successors, (78) [2022-11-19 07:05:29,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 382 transitions. [2022-11-19 07:05:29,596 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 382 transitions. Word has length 24 [2022-11-19 07:05:29,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:05:29,596 INFO L495 AbstractCegarLoop]: Abstraction has 278 states and 382 transitions. [2022-11-19 07:05:29,596 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.0) internal successors, (26), 13 states have internal predecessors, (26), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-19 07:05:29,596 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 382 transitions. [2022-11-19 07:05:29,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-19 07:05:29,597 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:05:29,598 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:05:29,608 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efd46924-ded4-4ffb-8af9-ab6232fb45f2/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-19 07:05:29,802 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efd46924-ded4-4ffb-8af9-ab6232fb45f2/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:05:29,803 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:05:29,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:05:29,803 INFO L85 PathProgramCache]: Analyzing trace with hash -1084844892, now seen corresponding path program 3 times [2022-11-19 07:05:29,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:05:29,803 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734199406] [2022-11-19 07:05:29,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:05:29,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:05:30,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-19 07:05:30,022 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-19 07:05:30,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-19 07:05:30,213 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-19 07:05:30,214 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-19 07:05:30,215 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-19 07:05:30,217 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-19 07:05:30,220 INFO L444 BasicCegarLoop]: Path program histogram: [3, 1] [2022-11-19 07:05:30,223 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-19 07:05:30,343 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:05:30 BoogieIcfgContainer [2022-11-19 07:05:30,343 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-19 07:05:30,343 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-19 07:05:30,344 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-19 07:05:30,344 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-19 07:05:30,344 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:03:22" (3/4) ... [2022-11-19 07:05:30,347 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-19 07:05:30,348 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-19 07:05:30,348 INFO L158 Benchmark]: Toolchain (without parser) took 133307.71ms. Allocated memory was 111.1MB in the beginning and 679.5MB in the end (delta: 568.3MB). Free memory was 66.9MB in the beginning and 466.4MB in the end (delta: -399.6MB). Peak memory consumption was 168.0MB. Max. memory is 16.1GB. [2022-11-19 07:05:30,348 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 111.1MB. Free memory is still 87.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 07:05:30,349 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2012.34ms. Allocated memory was 111.1MB in the beginning and 136.3MB in the end (delta: 25.2MB). Free memory was 66.7MB in the beginning and 56.0MB in the end (delta: 10.6MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2022-11-19 07:05:30,349 INFO L158 Benchmark]: Boogie Procedure Inliner took 154.79ms. Allocated memory is still 136.3MB. Free memory was 55.4MB in the beginning and 98.4MB in the end (delta: -43.0MB). Peak memory consumption was 3.0MB. Max. memory is 16.1GB. [2022-11-19 07:05:30,349 INFO L158 Benchmark]: Boogie Preprocessor took 152.75ms. Allocated memory is still 136.3MB. Free memory was 98.4MB in the beginning and 90.0MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-19 07:05:30,350 INFO L158 Benchmark]: RCFGBuilder took 2899.66ms. Allocated memory was 136.3MB in the beginning and 184.5MB in the end (delta: 48.2MB). Free memory was 90.0MB in the beginning and 136.1MB in the end (delta: -46.1MB). Peak memory consumption was 99.7MB. Max. memory is 16.1GB. [2022-11-19 07:05:30,350 INFO L158 Benchmark]: TraceAbstraction took 128076.60ms. Allocated memory was 184.5MB in the beginning and 679.5MB in the end (delta: 494.9MB). Free memory was 135.1MB in the beginning and 467.5MB in the end (delta: -332.4MB). Peak memory consumption was 162.5MB. Max. memory is 16.1GB. [2022-11-19 07:05:30,350 INFO L158 Benchmark]: Witness Printer took 4.28ms. Allocated memory is still 679.5MB. Free memory is still 466.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 07:05:30,352 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 111.1MB. Free memory is still 87.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2012.34ms. Allocated memory was 111.1MB in the beginning and 136.3MB in the end (delta: 25.2MB). Free memory was 66.7MB in the beginning and 56.0MB in the end (delta: 10.6MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 154.79ms. Allocated memory is still 136.3MB. Free memory was 55.4MB in the beginning and 98.4MB in the end (delta: -43.0MB). Peak memory consumption was 3.0MB. Max. memory is 16.1GB. * Boogie Preprocessor took 152.75ms. Allocated memory is still 136.3MB. Free memory was 98.4MB in the beginning and 90.0MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 2899.66ms. Allocated memory was 136.3MB in the beginning and 184.5MB in the end (delta: 48.2MB). Free memory was 90.0MB in the beginning and 136.1MB in the end (delta: -46.1MB). Peak memory consumption was 99.7MB. Max. memory is 16.1GB. * TraceAbstraction took 128076.60ms. Allocated memory was 184.5MB in the beginning and 679.5MB in the end (delta: 494.9MB). Free memory was 135.1MB in the beginning and 467.5MB in the end (delta: -332.4MB). Peak memory consumption was 162.5MB. Max. memory is 16.1GB. * Witness Printer took 4.28ms. Allocated memory is still 679.5MB. Free memory is still 466.4MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseOr at line 1486. Possible FailurePath: [L2657] struct ddv_timer timer_registered[1]; [L2613] struct ddv_pci_driver registered_pci_driver; [L32] void (* _ddv_module_exit)(void); [L3449] struct proc_dir_entry *proc_root_driver; [L2651] short number_timer_registered = 0; [L1481] char _ddv_module_param_nowayout [] = "Watchdog cannot be stopped once started (default=CONFIG_WATCHDOG_NOWAYOUT)"; [L2624] struct registered_irq registered_irq[16]; [L1745-L1752] static const struct file_operations zf_fops = { .owner = ((struct module *) 0), .llseek = no_llseek, .write = zf_write, .ioctl = zf_ioctl, .open = zf_open, .release = zf_close, }; [L1477] char _ddv_module_description[] = "MachZ ZF-Logic Watchdog driver"; [L1490] static int action = 0; [L1754-L1758] static struct miscdevice zf_miscdev = { .minor = 130, .name = "watchdog", .fops = (struct file_operations *)&zf_fops, }; [L2451] short number_fixed_genhd_used = 0; [L3938] int ddv_ioport_request_start; [L1478] char _ddv_module_license[] = "GPL"; [L1499] static unsigned long next_heartbeat = 0; [L2677] spinlock_t kernel_lock; [L1480] static int nowayout = 0; [L2641] struct ddv_tasklet tasklet_registered[1]; [L3363] request_queue_t fixed_request_queue[10]; [L1494] static unsigned long zf_is_open; [L2463] struct ddv_genhd genhd_registered[10]; [L1476] char _ddv_module_author[] = "Fernando Fuganti "; [L3365] int number_request_queue_used = 0; [L1498] static struct timer_list zf_timer; [L1485-L1489] static struct watchdog_info zf_info = { .options = 0x8000 | 0x0100, .firmware_version = 1, .identity = "ZF-Logic watchdog", }; [L1497] static spinlock_t zf_port_lock; [L3939] int ddv_ioport_request_len; [L1491] char _ddv_module_param_action [] = "after watchdog resets, generate: 0 = RESET(*) 1 = SMI 2 = NMI 3 = SCI"; [L1902] short number_cdev_registered = 0; [L2450] short number_genhd_registered = 0; [L1493] static int zf_action = 0x0800; [L2462] struct gendisk fixed_gendisk[10]; [L1495] static char zf_expect_close; [L1496] static spinlock_t zf_lock; [L2634] short number_tasklet_registered = 0; [L3759] struct ddv_tty_driver global_tty_driver; [L2667] struct work_struct *shared_workqueue[10]; [L20] int current_execution_context; [L1847] int (* _ddv_tmp_init)(void) = zf_init; [L1900] int fixed_cdev_used = 0; [L31] int (* _ddv_module_init)(void); [L1913] struct ddv_cdev cdev_registered[1]; [L232] unsigned long jiffies; [L1899] struct cdev fixed_cdev[1]; [L1765-L1767] static struct notifier_block zf_notifier = { .notifier_call = zf_notify_sys, }; [L1848] void (* _ddv_tmp_exit)(void) = zf_exit; [L1852] _ddv_module_init = zf_init [L1853] _ddv_module_exit = zf_exit [L1854] CALL call_ddv() [L2741] int err; [L2743] current_execution_context = 1 [L2745] CALL init_kernel() [L2681] int i; VAL [={-1:8}, ={-1:7}, ={-1:7}, ={-1:8}, action=0, cdev_registered={56:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={57:0}, fixed_cdev_used=0, fixed_gendisk={52:0}, fixed_request_queue={46:0}, genhd_registered={48:0}, global_tty_driver={54:0}, jiffies=0, kernel_lock={44:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={41:0}, registered_pci_driver={40:0}, shared_workqueue={55:0}, tasklet_registered={45:0}, timer_registered={39:0}, zf_action=2048, zf_expect_close=0, zf_fops={42:0}, zf_info={50:0}, zf_is_open={47:0}, zf_lock={53:0}, zf_miscdev={43:0}, zf_notifier={58:0}, zf_port_lock={51:0}, zf_timer={49:0}] [L2683] CALL spin_lock_init(&kernel_lock) VAL [={-1:8}, ={-1:7}, ={-1:8}, ={-1:7}, action=0, cdev_registered={56:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={57:0}, fixed_cdev_used=0, fixed_gendisk={52:0}, fixed_request_queue={46:0}, genhd_registered={48:0}, global_tty_driver={54:0}, jiffies=0, kernel_lock={44:0}, lock={44:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={41:0}, registered_pci_driver={40:0}, shared_workqueue={55:0}, tasklet_registered={45:0}, timer_registered={39:0}, zf_action=2048, zf_expect_close=0, zf_fops={42:0}, zf_info={50:0}, zf_is_open={47:0}, zf_lock={53:0}, zf_miscdev={43:0}, zf_notifier={58:0}, zf_port_lock={51:0}, zf_timer={49:0}] [L4198] lock->init = 1 [L4199] lock->locked = 0 [L2683] RET spin_lock_init(&kernel_lock) VAL [={-1:8}, ={-1:7}, ={-1:8}, ={-1:7}, action=0, cdev_registered={56:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={57:0}, fixed_cdev_used=0, fixed_gendisk={52:0}, fixed_request_queue={46:0}, genhd_registered={48:0}, global_tty_driver={54:0}, jiffies=0, kernel_lock={44:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={41:0}, registered_pci_driver={40:0}, shared_workqueue={55:0}, tasklet_registered={45:0}, timer_registered={39:0}, zf_action=2048, zf_expect_close=0, zf_fops={42:0}, zf_info={50:0}, zf_is_open={47:0}, zf_lock={53:0}, zf_miscdev={43:0}, zf_notifier={58:0}, zf_port_lock={51:0}, zf_timer={49:0}] [L2685] i = 0 VAL [={-1:8}, ={-1:8}, ={-1:7}, ={-1:7}, action=0, cdev_registered={56:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={57:0}, fixed_cdev_used=0, fixed_gendisk={52:0}, fixed_request_queue={46:0}, genhd_registered={48:0}, global_tty_driver={54:0}, i=0, jiffies=0, kernel_lock={44:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={41:0}, registered_pci_driver={40:0}, shared_workqueue={55:0}, tasklet_registered={45:0}, timer_registered={39:0}, zf_action=2048, zf_expect_close=0, zf_fops={42:0}, zf_info={50:0}, zf_is_open={47:0}, zf_lock={53:0}, zf_miscdev={43:0}, zf_notifier={58:0}, zf_port_lock={51:0}, zf_timer={49:0}] [L2685] COND TRUE i < 10 [L2686] shared_workqueue[i] = ((void *)0) [L2685] i++ VAL [={-1:8}, ={-1:7}, ={-1:8}, ={-1:7}, action=0, cdev_registered={56:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={57:0}, fixed_cdev_used=0, fixed_gendisk={52:0}, fixed_request_queue={46:0}, genhd_registered={48:0}, global_tty_driver={54:0}, i=1, jiffies=0, kernel_lock={44:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={41:0}, registered_pci_driver={40:0}, shared_workqueue={55:0}, tasklet_registered={45:0}, timer_registered={39:0}, zf_action=2048, zf_expect_close=0, zf_fops={42:0}, zf_info={50:0}, zf_is_open={47:0}, zf_lock={53:0}, zf_miscdev={43:0}, zf_notifier={58:0}, zf_port_lock={51:0}, zf_timer={49:0}] [L2685] COND TRUE i < 10 [L2686] shared_workqueue[i] = ((void *)0) [L2685] i++ VAL [={-1:7}, ={-1:8}, ={-1:8}, ={-1:7}, action=0, cdev_registered={56:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={57:0}, fixed_cdev_used=0, fixed_gendisk={52:0}, fixed_request_queue={46:0}, genhd_registered={48:0}, global_tty_driver={54:0}, i=2, jiffies=0, kernel_lock={44:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={41:0}, registered_pci_driver={40:0}, shared_workqueue={55:0}, tasklet_registered={45:0}, timer_registered={39:0}, zf_action=2048, zf_expect_close=0, zf_fops={42:0}, zf_info={50:0}, zf_is_open={47:0}, zf_lock={53:0}, zf_miscdev={43:0}, zf_notifier={58:0}, zf_port_lock={51:0}, zf_timer={49:0}] [L2685] COND TRUE i < 10 [L2686] shared_workqueue[i] = ((void *)0) [L2685] i++ VAL [={-1:8}, ={-1:7}, ={-1:7}, ={-1:8}, action=0, cdev_registered={56:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={57:0}, fixed_cdev_used=0, fixed_gendisk={52:0}, fixed_request_queue={46:0}, genhd_registered={48:0}, global_tty_driver={54:0}, i=3, jiffies=0, kernel_lock={44:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={41:0}, registered_pci_driver={40:0}, shared_workqueue={55:0}, tasklet_registered={45:0}, timer_registered={39:0}, zf_action=2048, zf_expect_close=0, zf_fops={42:0}, zf_info={50:0}, zf_is_open={47:0}, zf_lock={53:0}, zf_miscdev={43:0}, zf_notifier={58:0}, zf_port_lock={51:0}, zf_timer={49:0}] [L2685] COND TRUE i < 10 [L2686] shared_workqueue[i] = ((void *)0) [L2685] i++ VAL [={-1:7}, ={-1:8}, ={-1:8}, ={-1:7}, action=0, cdev_registered={56:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={57:0}, fixed_cdev_used=0, fixed_gendisk={52:0}, fixed_request_queue={46:0}, genhd_registered={48:0}, global_tty_driver={54:0}, i=4, jiffies=0, kernel_lock={44:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={41:0}, registered_pci_driver={40:0}, shared_workqueue={55:0}, tasklet_registered={45:0}, timer_registered={39:0}, zf_action=2048, zf_expect_close=0, zf_fops={42:0}, zf_info={50:0}, zf_is_open={47:0}, zf_lock={53:0}, zf_miscdev={43:0}, zf_notifier={58:0}, zf_port_lock={51:0}, zf_timer={49:0}] [L2685] COND TRUE i < 10 [L2686] shared_workqueue[i] = ((void *)0) [L2685] i++ VAL [={-1:8}, ={-1:8}, ={-1:7}, ={-1:7}, action=0, cdev_registered={56:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={57:0}, fixed_cdev_used=0, fixed_gendisk={52:0}, fixed_request_queue={46:0}, genhd_registered={48:0}, global_tty_driver={54:0}, i=5, jiffies=0, kernel_lock={44:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={41:0}, registered_pci_driver={40:0}, shared_workqueue={55:0}, tasklet_registered={45:0}, timer_registered={39:0}, zf_action=2048, zf_expect_close=0, zf_fops={42:0}, zf_info={50:0}, zf_is_open={47:0}, zf_lock={53:0}, zf_miscdev={43:0}, zf_notifier={58:0}, zf_port_lock={51:0}, zf_timer={49:0}] [L2685] COND TRUE i < 10 [L2686] shared_workqueue[i] = ((void *)0) [L2685] i++ VAL [={-1:8}, ={-1:8}, ={-1:7}, ={-1:7}, action=0, cdev_registered={56:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={57:0}, fixed_cdev_used=0, fixed_gendisk={52:0}, fixed_request_queue={46:0}, genhd_registered={48:0}, global_tty_driver={54:0}, i=6, jiffies=0, kernel_lock={44:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={41:0}, registered_pci_driver={40:0}, shared_workqueue={55:0}, tasklet_registered={45:0}, timer_registered={39:0}, zf_action=2048, zf_expect_close=0, zf_fops={42:0}, zf_info={50:0}, zf_is_open={47:0}, zf_lock={53:0}, zf_miscdev={43:0}, zf_notifier={58:0}, zf_port_lock={51:0}, zf_timer={49:0}] [L2685] COND TRUE i < 10 [L2686] shared_workqueue[i] = ((void *)0) [L2685] i++ VAL [={-1:8}, ={-1:7}, ={-1:7}, ={-1:8}, action=0, cdev_registered={56:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={57:0}, fixed_cdev_used=0, fixed_gendisk={52:0}, fixed_request_queue={46:0}, genhd_registered={48:0}, global_tty_driver={54:0}, i=7, jiffies=0, kernel_lock={44:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={41:0}, registered_pci_driver={40:0}, shared_workqueue={55:0}, tasklet_registered={45:0}, timer_registered={39:0}, zf_action=2048, zf_expect_close=0, zf_fops={42:0}, zf_info={50:0}, zf_is_open={47:0}, zf_lock={53:0}, zf_miscdev={43:0}, zf_notifier={58:0}, zf_port_lock={51:0}, zf_timer={49:0}] [L2685] COND TRUE i < 10 [L2686] shared_workqueue[i] = ((void *)0) [L2685] i++ VAL [={-1:7}, ={-1:8}, ={-1:7}, ={-1:8}, action=0, cdev_registered={56:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={57:0}, fixed_cdev_used=0, fixed_gendisk={52:0}, fixed_request_queue={46:0}, genhd_registered={48:0}, global_tty_driver={54:0}, i=8, jiffies=0, kernel_lock={44:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={41:0}, registered_pci_driver={40:0}, shared_workqueue={55:0}, tasklet_registered={45:0}, timer_registered={39:0}, zf_action=2048, zf_expect_close=0, zf_fops={42:0}, zf_info={50:0}, zf_is_open={47:0}, zf_lock={53:0}, zf_miscdev={43:0}, zf_notifier={58:0}, zf_port_lock={51:0}, zf_timer={49:0}] [L2685] COND TRUE i < 10 [L2686] shared_workqueue[i] = ((void *)0) [L2685] i++ VAL [={-1:8}, ={-1:8}, ={-1:7}, ={-1:7}, action=0, cdev_registered={56:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={57:0}, fixed_cdev_used=0, fixed_gendisk={52:0}, fixed_request_queue={46:0}, genhd_registered={48:0}, global_tty_driver={54:0}, i=9, jiffies=0, kernel_lock={44:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={41:0}, registered_pci_driver={40:0}, shared_workqueue={55:0}, tasklet_registered={45:0}, timer_registered={39:0}, zf_action=2048, zf_expect_close=0, zf_fops={42:0}, zf_info={50:0}, zf_is_open={47:0}, zf_lock={53:0}, zf_miscdev={43:0}, zf_notifier={58:0}, zf_port_lock={51:0}, zf_timer={49:0}] [L2685] COND TRUE i < 10 [L2686] shared_workqueue[i] = ((void *)0) [L2685] i++ VAL [={-1:7}, ={-1:7}, ={-1:8}, ={-1:8}, action=0, cdev_registered={56:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={57:0}, fixed_cdev_used=0, fixed_gendisk={52:0}, fixed_request_queue={46:0}, genhd_registered={48:0}, global_tty_driver={54:0}, i=10, jiffies=0, kernel_lock={44:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={41:0}, registered_pci_driver={40:0}, shared_workqueue={55:0}, tasklet_registered={45:0}, timer_registered={39:0}, zf_action=2048, zf_expect_close=0, zf_fops={42:0}, zf_info={50:0}, zf_is_open={47:0}, zf_lock={53:0}, zf_miscdev={43:0}, zf_notifier={58:0}, zf_port_lock={51:0}, zf_timer={49:0}] [L2685] COND FALSE !(i < 10) [L2689] i = 0 VAL [={-1:7}, ={-1:8}, ={-1:8}, ={-1:7}, action=0, cdev_registered={56:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={57:0}, fixed_cdev_used=0, fixed_gendisk={52:0}, fixed_request_queue={46:0}, genhd_registered={48:0}, global_tty_driver={54:0}, i=0, jiffies=0, kernel_lock={44:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={41:0}, registered_pci_driver={40:0}, shared_workqueue={55:0}, tasklet_registered={45:0}, timer_registered={39:0}, zf_action=2048, zf_expect_close=0, zf_fops={42:0}, zf_info={50:0}, zf_is_open={47:0}, zf_lock={53:0}, zf_miscdev={43:0}, zf_notifier={58:0}, zf_port_lock={51:0}, zf_timer={49:0}] [L2689] COND TRUE i < 1 [L2690] tasklet_registered[i].tasklet = ((void *)0) [L2691] tasklet_registered[i].is_running = 0 [L2689] i++ VAL [={-1:8}, ={-1:7}, ={-1:8}, ={-1:7}, action=0, cdev_registered={56:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={57:0}, fixed_cdev_used=0, fixed_gendisk={52:0}, fixed_request_queue={46:0}, genhd_registered={48:0}, global_tty_driver={54:0}, i=1, jiffies=0, kernel_lock={44:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={41:0}, registered_pci_driver={40:0}, shared_workqueue={55:0}, tasklet_registered={45:0}, timer_registered={39:0}, zf_action=2048, zf_expect_close=0, zf_fops={42:0}, zf_info={50:0}, zf_is_open={47:0}, zf_lock={53:0}, zf_miscdev={43:0}, zf_notifier={58:0}, zf_port_lock={51:0}, zf_timer={49:0}] [L2689] COND FALSE !(i < 1) [L2745] RET init_kernel() [L2747] CALL (* _ddv_module_init)() [L1778] int ret; VAL [={-1:8}, ={-1:7}, ={-1:7}, ={-1:8}, action=0, cdev_registered={56:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={57:0}, fixed_cdev_used=0, fixed_gendisk={52:0}, fixed_request_queue={46:0}, genhd_registered={48:0}, global_tty_driver={54:0}, jiffies=0, kernel_lock={44:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={41:0}, registered_pci_driver={40:0}, shared_workqueue={55:0}, tasklet_registered={45:0}, timer_registered={39:0}, zf_action=2048, zf_expect_close=0, zf_fops={42:0}, zf_info={50:0}, zf_is_open={47:0}, zf_lock={53:0}, zf_miscdev={43:0}, zf_notifier={58:0}, zf_port_lock={51:0}, zf_timer={49:0}] [L1780] CALL printk("<6>" "machzwd" ": MachZ ZF-Logic Watchdog driver initializing.\n") VAL [={-1:7}, ={-1:8}, ={-1:7}, ={-1:8}, action=0, cdev_registered={56:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={57:0}, fixed_cdev_used=0, fixed_gendisk={52:0}, fixed_request_queue={46:0}, fmt={21:0}, genhd_registered={48:0}, global_tty_driver={54:0}, jiffies=0, kernel_lock={44:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={41:0}, registered_pci_driver={40:0}, shared_workqueue={55:0}, tasklet_registered={45:0}, timer_registered={39:0}, zf_action=2048, zf_expect_close=0, zf_fops={42:0}, zf_info={50:0}, zf_is_open={47:0}, zf_lock={53:0}, zf_miscdev={43:0}, zf_notifier={58:0}, zf_port_lock={51:0}, zf_timer={49:0}] [L4525] return 0; [L1780] RET printk("<6>" "machzwd" ": MachZ ZF-Logic Watchdog driver initializing.\n") VAL [={-1:8}, ={-1:7}, ={-1:7}, ={-1:8}, action=0, cdev_registered={56:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={57:0}, fixed_cdev_used=0, fixed_gendisk={52:0}, fixed_request_queue={46:0}, genhd_registered={48:0}, global_tty_driver={54:0}, jiffies=0, kernel_lock={44:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, printk("<6>" "machzwd" ": MachZ ZF-Logic Watchdog driver initializing.\n")=0, proc_root_driver={0:0}, registered_irq={41:0}, registered_pci_driver={40:0}, shared_workqueue={55:0}, tasklet_registered={45:0}, timer_registered={39:0}, zf_action=2048, zf_expect_close=0, zf_fops={42:0}, zf_info={50:0}, zf_is_open={47:0}, zf_lock={53:0}, zf_miscdev={43:0}, zf_notifier={58:0}, zf_port_lock={51:0}, zf_timer={49:0}] [L1782] CALL zf_readw(0x02) VAL [={-1:8}, ={-1:7}, ={-1:7}, ={-1:8}, action=0, cdev_registered={56:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={57:0}, fixed_cdev_used=0, fixed_gendisk={52:0}, fixed_request_queue={46:0}, genhd_registered={48:0}, global_tty_driver={54:0}, jiffies=0, kernel_lock={44:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={41:0}, registered_pci_driver={40:0}, shared_workqueue={55:0}, tasklet_registered={45:0}, timer_registered={39:0}, zf_action=2048, zf_expect_close=0, zf_fops={42:0}, zf_info={50:0}, zf_is_open={47:0}, zf_lock={53:0}, zf_miscdev={43:0}, zf_notifier={58:0}, zf_port_lock={51:0}, zf_timer={49:0}] [L1471] CALL outb(port, 0x218) VAL [={-1:8}, ={-1:7}, ={-1:8}, ={-1:7}, \old(byte)=2, \old(port)=536, action=0, cdev_registered={56:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={57:0}, fixed_cdev_used=0, fixed_gendisk={52:0}, fixed_request_queue={46:0}, genhd_registered={48:0}, global_tty_driver={54:0}, jiffies=0, kernel_lock={44:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={41:0}, registered_pci_driver={40:0}, shared_workqueue={55:0}, tasklet_registered={45:0}, timer_registered={39:0}, zf_action=2048, zf_expect_close=0, zf_fops={42:0}, zf_info={50:0}, zf_is_open={47:0}, zf_lock={53:0}, zf_miscdev={43:0}, zf_notifier={58:0}, zf_port_lock={51:0}, zf_timer={49:0}] [L3978] CALL __VERIFIER_assert(port >= ddv_ioport_request_start && port < ddv_ioport_request_start + ddv_ioport_request_len, "I/O port is requested") VAL [={-1:7}, ={-1:8}, ={-1:8}, ={-1:7}, \old(expression)=0, action=0, cdev_registered={56:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={57:0}, fixed_cdev_used=0, fixed_gendisk={52:0}, fixed_request_queue={46:0}, genhd_registered={48:0}, global_tty_driver={54:0}, jiffies=0, kernel_lock={44:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={41:0}, registered_pci_driver={40:0}, shared_workqueue={55:0}, tasklet_registered={45:0}, timer_registered={39:0}, x={28:0}, zf_action=2048, zf_expect_close=0, zf_fops={42:0}, zf_info={50:0}, zf_is_open={47:0}, zf_lock={53:0}, zf_miscdev={43:0}, zf_notifier={58:0}, zf_port_lock={51:0}, zf_timer={49:0}] [L12] COND TRUE !expression VAL [={-1:8}, ={-1:7}, ={-1:7}, ={-1:8}, \old(expression)=0, action=0, cdev_registered={56:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, expression=0, fixed_cdev={57:0}, fixed_cdev_used=0, fixed_gendisk={52:0}, fixed_request_queue={46:0}, genhd_registered={48:0}, global_tty_driver={54:0}, jiffies=0, kernel_lock={44:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={41:0}, registered_pci_driver={40:0}, shared_workqueue={55:0}, tasklet_registered={45:0}, timer_registered={39:0}, x={28:0}, x={28:0}, zf_action=2048, zf_expect_close=0, zf_fops={42:0}, zf_info={50:0}, zf_is_open={47:0}, zf_lock={53:0}, zf_miscdev={43:0}, zf_notifier={58:0}, zf_port_lock={51:0}, zf_timer={49:0}] [L12] reach_error() VAL [={-1:7}, ={-1:8}, ={-1:7}, ={-1:8}, \old(expression)=0, action=0, cdev_registered={56:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, expression=0, fixed_cdev={57:0}, fixed_cdev_used=0, fixed_gendisk={52:0}, fixed_request_queue={46:0}, genhd_registered={48:0}, global_tty_driver={54:0}, jiffies=0, kernel_lock={44:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={41:0}, registered_pci_driver={40:0}, shared_workqueue={55:0}, tasklet_registered={45:0}, timer_registered={39:0}, x={28:0}, x={28:0}, zf_action=2048, zf_expect_close=0, zf_fops={42:0}, zf_info={50:0}, zf_is_open={47:0}, zf_lock={53:0}, zf_miscdev={43:0}, zf_notifier={58:0}, zf_port_lock={51:0}, zf_timer={49:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 30 procedures, 277 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 127.9s, OverallIterations: 4, TraceHistogramMax: 10, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 5.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 588 SdHoareTripleChecker+Valid, 4.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 530 mSDsluCounter, 2577 SdHoareTripleChecker+Invalid, 4.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1605 mSDsCounter, 117 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 506 IncrementalHoareTripleChecker+Invalid, 623 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 117 mSolverCounterUnsat, 972 mSDtfsCounter, 506 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 145 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 471 ImplicationChecksByTransitivity, 87.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=278occurred in iteration=3, InterpolantAutomatonStates: 21, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 2.0s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 139 NumberOfCodeBlocks, 139 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 147 ConstructedInterpolants, 0 QuantifiedInterpolants, 191 SizeOfPredicates, 0 NumberOfNonLiveVariables, 1871 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 7 InterpolantComputations, 1 PerfectInterpolantSequences, 6/39 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-19 07:05:30,375 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efd46924-ded4-4ffb-8af9-ab6232fb45f2/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efd46924-ded4-4ffb-8af9-ab6232fb45f2/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efd46924-ded4-4ffb-8af9-ab6232fb45f2/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efd46924-ded4-4ffb-8af9-ab6232fb45f2/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efd46924-ded4-4ffb-8af9-ab6232fb45f2/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_all.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efd46924-ded4-4ffb-8af9-ab6232fb45f2/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efd46924-ded4-4ffb-8af9-ab6232fb45f2/bin/utaipan-I9t0OCRTmS --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 32bit --witnessprinter.graph.data.programhash a564ea576763c13bfd3673da7d9fb82b1799f9ec9208539e745949eb812373cd --- 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-8393723 [2022-11-19 07:05:32,691 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 07:05:32,695 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 07:05:32,733 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 07:05:32,734 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 07:05:32,735 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 07:05:32,736 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 07:05:32,740 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 07:05:32,748 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 07:05:32,754 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 07:05:32,755 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 07:05:32,760 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 07:05:32,760 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 07:05:32,761 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 07:05:32,762 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 07:05:32,764 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 07:05:32,765 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 07:05:32,766 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 07:05:32,767 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 07:05:32,769 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 07:05:32,774 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 07:05:32,776 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 07:05:32,780 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 07:05:32,782 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 07:05:32,821 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 07:05:32,821 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 07:05:32,821 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 07:05:32,822 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 07:05:32,823 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 07:05:32,824 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 07:05:32,824 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 07:05:32,825 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 07:05:32,826 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 07:05:32,827 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 07:05:32,828 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 07:05:32,829 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 07:05:32,830 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 07:05:32,830 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 07:05:32,836 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 07:05:32,838 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 07:05:32,838 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 07:05:32,844 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efd46924-ded4-4ffb-8af9-ab6232fb45f2/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2022-11-19 07:05:32,886 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 07:05:32,886 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 07:05:32,888 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 07:05:32,888 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 07:05:32,889 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 07:05:32,889 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 07:05:32,890 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 07:05:32,890 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 07:05:32,890 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 07:05:32,890 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 07:05:32,891 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 07:05:32,892 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 07:05:32,893 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 07:05:32,894 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 07:05:32,894 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 07:05:32,894 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 07:05:32,894 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 07:05:32,895 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 07:05:32,895 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 07:05:32,895 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-19 07:05:32,895 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-19 07:05:32,896 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-19 07:05:32,896 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 07:05:32,896 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 07:05:32,896 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 07:05:32,897 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 07:05:32,897 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 07:05:32,897 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-19 07:05:32,897 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 07:05:32,898 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:05:32,898 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 07:05:32,898 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 07:05:32,899 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 07:05:32,899 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-19 07:05:32,899 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-19 07:05:32,900 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 07:05:32,900 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 07:05:32,900 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-19 07:05:32,900 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_efd46924-ded4-4ffb-8af9-ab6232fb45f2/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efd46924-ded4-4ffb-8af9-ab6232fb45f2/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a564ea576763c13bfd3673da7d9fb82b1799f9ec9208539e745949eb812373cd [2022-11-19 07:05:33,310 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 07:05:33,333 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 07:05:33,336 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 07:05:33,337 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 07:05:33,338 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 07:05:33,339 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efd46924-ded4-4ffb-8af9-ab6232fb45f2/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_all.i [2022-11-19 07:05:33,412 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efd46924-ded4-4ffb-8af9-ab6232fb45f2/bin/utaipan-I9t0OCRTmS/data/0bb6bf50f/627d31ba59bf4bb8b8b3d2ee1b45108f/FLAG2ea2801bd [2022-11-19 07:05:34,214 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 07:05:34,215 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efd46924-ded4-4ffb-8af9-ab6232fb45f2/sv-benchmarks/c/ddv-machzwd/ddv_machzwd_all.i [2022-11-19 07:05:34,260 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efd46924-ded4-4ffb-8af9-ab6232fb45f2/bin/utaipan-I9t0OCRTmS/data/0bb6bf50f/627d31ba59bf4bb8b8b3d2ee1b45108f/FLAG2ea2801bd [2022-11-19 07:05:34,330 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efd46924-ded4-4ffb-8af9-ab6232fb45f2/bin/utaipan-I9t0OCRTmS/data/0bb6bf50f/627d31ba59bf4bb8b8b3d2ee1b45108f [2022-11-19 07:05:34,334 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 07:05:34,336 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 07:05:34,339 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 07:05:34,339 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 07:05:34,344 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 07:05:34,346 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:05:34" (1/1) ... [2022-11-19 07:05:34,348 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@741b1b62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:05:34, skipping insertion in model container [2022-11-19 07:05:34,348 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:05:34" (1/1) ... [2022-11-19 07:05:34,357 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 07:05:34,464 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 07:05:34,766 WARN L234 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_efd46924-ded4-4ffb-8af9-ab6232fb45f2/sv-benchmarks/c/ddv-machzwd/ddv_machzwd_all.i[452,465] [2022-11-19 07:05:36,156 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:05:36,209 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-19 07:05:36,246 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 07:05:36,250 WARN L234 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_efd46924-ded4-4ffb-8af9-ab6232fb45f2/sv-benchmarks/c/ddv-machzwd/ddv_machzwd_all.i[452,465] [2022-11-19 07:05:36,505 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:05:36,538 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 07:05:36,549 WARN L234 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_efd46924-ded4-4ffb-8af9-ab6232fb45f2/sv-benchmarks/c/ddv-machzwd/ddv_machzwd_all.i[452,465] [2022-11-19 07:05:36,745 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:05:36,923 INFO L208 MainTranslator]: Completed translation [2022-11-19 07:05:36,923 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:05:36 WrapperNode [2022-11-19 07:05:36,923 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 07:05:36,924 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 07:05:36,924 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 07:05:36,924 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 07:05:36,932 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:05:36" (1/1) ... [2022-11-19 07:05:36,997 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:05:36" (1/1) ... [2022-11-19 07:05:37,056 INFO L138 Inliner]: procedures = 484, calls = 866, calls flagged for inlining = 55, calls inlined = 37, statements flattened = 980 [2022-11-19 07:05:37,057 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 07:05:37,057 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 07:05:37,057 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 07:05:37,058 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 07:05:37,067 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:05:36" (1/1) ... [2022-11-19 07:05:37,067 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:05:36" (1/1) ... [2022-11-19 07:05:37,086 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:05:36" (1/1) ... [2022-11-19 07:05:37,087 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:05:36" (1/1) ... [2022-11-19 07:05:37,145 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:05:36" (1/1) ... [2022-11-19 07:05:37,152 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:05:36" (1/1) ... [2022-11-19 07:05:37,170 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:05:36" (1/1) ... [2022-11-19 07:05:37,184 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:05:36" (1/1) ... [2022-11-19 07:05:37,198 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 07:05:37,206 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 07:05:37,206 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 07:05:37,206 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 07:05:37,207 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:05:36" (1/1) ... [2022-11-19 07:05:37,214 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:05:37,224 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efd46924-ded4-4ffb-8af9-ab6232fb45f2/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:05:37,239 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efd46924-ded4-4ffb-8af9-ab6232fb45f2/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 07:05:37,261 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efd46924-ded4-4ffb-8af9-ab6232fb45f2/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 07:05:37,291 INFO L130 BoogieDeclarations]: Found specification of procedure zf_timer_off [2022-11-19 07:05:37,291 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_timer_off [2022-11-19 07:05:37,291 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~C_UINT~X~C_ULONG~TO~C_INT [2022-11-19 07:05:37,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~C_UINT~X~C_ULONG~TO~C_INT [2022-11-19 07:05:37,291 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-19 07:05:37,292 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_atomic_begin [2022-11-19 07:05:37,292 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-19 07:05:37,292 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-19 07:05:37,292 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 07:05:37,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-11-19 07:05:37,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-19 07:05:37,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-11-19 07:05:37,293 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-19 07:05:37,293 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-19 07:05:37,293 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-19 07:05:37,293 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_atomic_end [2022-11-19 07:05:37,293 INFO L130 BoogieDeclarations]: Found specification of procedure zf_get_control [2022-11-19 07:05:37,293 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_get_control [2022-11-19 07:05:37,294 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-19 07:05:37,294 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-19 07:05:37,294 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2022-11-19 07:05:37,294 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2022-11-19 07:05:37,294 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-19 07:05:37,294 INFO L130 BoogieDeclarations]: Found specification of procedure request_region [2022-11-19 07:05:37,295 INFO L138 BoogieDeclarations]: Found implementation of procedure request_region [2022-11-19 07:05:37,295 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 07:05:37,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-19 07:05:37,295 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-19 07:05:37,296 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-19 07:05:37,296 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irqsave [2022-11-19 07:05:37,296 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irqsave [2022-11-19 07:05:37,296 INFO L130 BoogieDeclarations]: Found specification of procedure release_region [2022-11-19 07:05:37,296 INFO L138 BoogieDeclarations]: Found implementation of procedure release_region [2022-11-19 07:05:37,297 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 07:05:37,297 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 07:05:37,297 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_init [2022-11-19 07:05:37,297 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_init [2022-11-19 07:05:37,298 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-11-19 07:05:37,298 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-19 07:05:37,298 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-11-19 07:05:37,298 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-19 07:05:37,298 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-19 07:05:37,298 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-19 07:05:37,299 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2022-11-19 07:05:37,299 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2022-11-19 07:05:37,300 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 07:05:37,301 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-19 07:05:37,301 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2022-11-19 07:05:37,302 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2022-11-19 07:05:37,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-11-19 07:05:37,302 INFO L130 BoogieDeclarations]: Found specification of procedure cdev_add [2022-11-19 07:05:37,303 INFO L138 BoogieDeclarations]: Found implementation of procedure cdev_add [2022-11-19 07:05:37,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-11-19 07:05:37,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-11-19 07:05:37,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-19 07:05:37,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-19 07:05:37,304 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2022-11-19 07:05:37,304 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2022-11-19 07:05:37,304 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2022-11-19 07:05:37,305 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2022-11-19 07:05:37,305 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2022-11-19 07:05:37,305 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2022-11-19 07:05:37,305 INFO L130 BoogieDeclarations]: Found specification of procedure misc_deregister [2022-11-19 07:05:37,305 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_deregister [2022-11-19 07:05:37,305 INFO L130 BoogieDeclarations]: Found specification of procedure assert_context_process [2022-11-19 07:05:37,306 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_context_process [2022-11-19 07:05:37,306 INFO L130 BoogieDeclarations]: Found specification of procedure zf_set_control [2022-11-19 07:05:37,307 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_set_control [2022-11-19 07:05:37,307 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~$Pointer$~TO~C_LONG [2022-11-19 07:05:37,307 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~$Pointer$~TO~C_LONG [2022-11-19 07:05:37,307 INFO L130 BoogieDeclarations]: Found specification of procedure zf_readw [2022-11-19 07:05:37,307 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_readw [2022-11-19 07:05:37,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-11-19 07:05:37,308 INFO L130 BoogieDeclarations]: Found specification of procedure zf_ping [2022-11-19 07:05:37,308 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_ping [2022-11-19 07:05:37,308 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-19 07:05:37,308 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-19 07:05:37,308 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_ULONG~TO~VOID [2022-11-19 07:05:37,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_ULONG~TO~VOID [2022-11-19 07:05:37,720 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 07:05:37,723 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 07:05:43,014 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 07:05:43,024 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 07:05:43,024 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-19 07:05:43,027 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:05:43 BoogieIcfgContainer [2022-11-19 07:05:43,027 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 07:05:43,030 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 07:05:43,030 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 07:05:43,033 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 07:05:43,033 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:05:34" (1/3) ... [2022-11-19 07:05:43,034 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29e19ace and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:05:43, skipping insertion in model container [2022-11-19 07:05:43,034 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:05:36" (2/3) ... [2022-11-19 07:05:43,034 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29e19ace and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:05:43, skipping insertion in model container [2022-11-19 07:05:43,035 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:05:43" (3/3) ... [2022-11-19 07:05:43,036 INFO L112 eAbstractionObserver]: Analyzing ICFG ddv_machzwd_all.i [2022-11-19 07:05:43,056 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 07:05:43,056 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 07:05:43,133 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 07:05:43,140 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;@53f5d263, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 07:05:43,140 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 07:05:43,147 INFO L276 IsEmpty]: Start isEmpty. Operand has 356 states, 246 states have (on average 1.3577235772357723) internal successors, (334), 253 states have internal predecessors, (334), 81 states have call successors, (81), 27 states have call predecessors, (81), 27 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2022-11-19 07:05:43,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-19 07:05:43,156 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:05:43,156 INFO L195 NwaCegarLoop]: 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] [2022-11-19 07:05:43,157 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:05:43,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:05:43,166 INFO L85 PathProgramCache]: Analyzing trace with hash -833329005, now seen corresponding path program 1 times [2022-11-19 07:05:43,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 07:05:43,187 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1268114068] [2022-11-19 07:05:43,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:05:43,188 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:05:43,189 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efd46924-ded4-4ffb-8af9-ab6232fb45f2/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 07:05:43,194 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efd46924-ded4-4ffb-8af9-ab6232fb45f2/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 07:05:43,206 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efd46924-ded4-4ffb-8af9-ab6232fb45f2/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-19 07:05:43,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:05:43,836 INFO L263 TraceCheckSpWp]: Trace formula consists of 595 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-19 07:05:43,841 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:05:43,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:05:43,868 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:05:43,868 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 07:05:43,869 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1268114068] [2022-11-19 07:05:43,869 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1268114068] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:05:43,870 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:05:43,870 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 07:05:43,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479265883] [2022-11-19 07:05:43,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:05:43,879 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-19 07:05:43,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 07:05:43,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-19 07:05:43,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-19 07:05:43,924 INFO L87 Difference]: Start difference. First operand has 356 states, 246 states have (on average 1.3577235772357723) internal successors, (334), 253 states have internal predecessors, (334), 81 states have call successors, (81), 27 states have call predecessors, (81), 27 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) Second operand has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-19 07:05:43,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:05:43,999 INFO L93 Difference]: Finished difference Result 706 states and 1027 transitions. [2022-11-19 07:05:44,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-19 07:05:44,002 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 24 [2022-11-19 07:05:44,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:05:44,015 INFO L225 Difference]: With dead ends: 706 [2022-11-19 07:05:44,015 INFO L226 Difference]: Without dead ends: 346 [2022-11-19 07:05:44,022 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-19 07:05:44,027 INFO L413 NwaCegarLoop]: 490 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 490 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 07:05:44,027 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 490 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 07:05:44,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2022-11-19 07:05:44,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 346. [2022-11-19 07:05:44,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 346 states, 239 states have (on average 1.3389121338912133) internal successors, (320), 246 states have internal predecessors, (320), 79 states have call successors, (79), 27 states have call predecessors, (79), 27 states have return successors, (78), 78 states have call predecessors, (78), 78 states have call successors, (78) [2022-11-19 07:05:44,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 477 transitions. [2022-11-19 07:05:44,135 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 477 transitions. Word has length 24 [2022-11-19 07:05:44,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:05:44,137 INFO L495 AbstractCegarLoop]: Abstraction has 346 states and 477 transitions. [2022-11-19 07:05:44,138 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-19 07:05:44,138 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 477 transitions. [2022-11-19 07:05:44,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-19 07:05:44,140 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:05:44,141 INFO L195 NwaCegarLoop]: 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] [2022-11-19 07:05:44,166 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efd46924-ded4-4ffb-8af9-ab6232fb45f2/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-19 07:05:44,358 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efd46924-ded4-4ffb-8af9-ab6232fb45f2/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:05:44,358 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:05:44,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:05:44,359 INFO L85 PathProgramCache]: Analyzing trace with hash -818628857, now seen corresponding path program 1 times [2022-11-19 07:05:44,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 07:05:44,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [992459958] [2022-11-19 07:05:44,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:05:44,360 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:05:44,361 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efd46924-ded4-4ffb-8af9-ab6232fb45f2/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 07:05:44,363 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efd46924-ded4-4ffb-8af9-ab6232fb45f2/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 07:05:44,367 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efd46924-ded4-4ffb-8af9-ab6232fb45f2/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-19 07:05:44,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:05:44,919 INFO L263 TraceCheckSpWp]: Trace formula consists of 595 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-19 07:05:44,921 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:05:44,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:05:44,956 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:05:44,956 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 07:05:44,957 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [992459958] [2022-11-19 07:05:44,957 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [992459958] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:05:44,957 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:05:44,957 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:05:44,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942544294] [2022-11-19 07:05:44,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:05:44,959 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:05:44,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 07:05:44,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:05:44,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:05:44,960 INFO L87 Difference]: Start difference. First operand 346 states and 477 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-19 07:05:45,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:05:45,058 INFO L93 Difference]: Finished difference Result 690 states and 952 transitions. [2022-11-19 07:05:45,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:05:45,060 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 24 [2022-11-19 07:05:45,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:05:45,063 INFO L225 Difference]: With dead ends: 690 [2022-11-19 07:05:45,064 INFO L226 Difference]: Without dead ends: 350 [2022-11-19 07:05:45,066 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:05:45,067 INFO L413 NwaCegarLoop]: 473 mSDtfsCounter, 2 mSDsluCounter, 468 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 941 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:05:45,068 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 941 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:05:45,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2022-11-19 07:05:45,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 348. [2022-11-19 07:05:45,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 348 states, 241 states have (on average 1.3360995850622406) internal successors, (322), 248 states have internal predecessors, (322), 79 states have call successors, (79), 27 states have call predecessors, (79), 27 states have return successors, (78), 78 states have call predecessors, (78), 78 states have call successors, (78) [2022-11-19 07:05:45,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 479 transitions. [2022-11-19 07:05:45,093 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 479 transitions. Word has length 24 [2022-11-19 07:05:45,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:05:45,094 INFO L495 AbstractCegarLoop]: Abstraction has 348 states and 479 transitions. [2022-11-19 07:05:45,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-19 07:05:45,094 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 479 transitions. [2022-11-19 07:05:45,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-19 07:05:45,096 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:05:45,096 INFO L195 NwaCegarLoop]: 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] [2022-11-19 07:05:45,113 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efd46924-ded4-4ffb-8af9-ab6232fb45f2/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-19 07:05:45,312 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efd46924-ded4-4ffb-8af9-ab6232fb45f2/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:05:45,312 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:05:45,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:05:45,313 INFO L85 PathProgramCache]: Analyzing trace with hash -174177661, now seen corresponding path program 1 times [2022-11-19 07:05:45,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 07:05:45,315 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [154393835] [2022-11-19 07:05:45,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:05:45,315 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:05:45,315 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efd46924-ded4-4ffb-8af9-ab6232fb45f2/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 07:05:45,317 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efd46924-ded4-4ffb-8af9-ab6232fb45f2/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 07:05:45,325 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efd46924-ded4-4ffb-8af9-ab6232fb45f2/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-19 07:05:45,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:05:45,938 INFO L263 TraceCheckSpWp]: Trace formula consists of 625 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 07:05:45,940 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:05:45,982 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-19 07:05:45,982 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:05:46,058 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-19 07:05:46,060 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 07:05:46,060 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [154393835] [2022-11-19 07:05:46,062 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [154393835] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:05:46,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1077688051] [2022-11-19 07:05:46,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:05:46,063 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-19 07:05:46,064 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efd46924-ded4-4ffb-8af9-ab6232fb45f2/bin/utaipan-I9t0OCRTmS/cvc4 [2022-11-19 07:05:46,066 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efd46924-ded4-4ffb-8af9-ab6232fb45f2/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-19 07:05:46,082 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efd46924-ded4-4ffb-8af9-ab6232fb45f2/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2022-11-19 07:05:47,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:05:47,094 INFO L263 TraceCheckSpWp]: Trace formula consists of 625 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 07:05:47,098 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:05:47,117 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-19 07:05:47,118 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:05:47,140 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-19 07:05:47,140 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1077688051] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:05:47,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2054879104] [2022-11-19 07:05:47,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:05:47,141 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:05:47,141 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efd46924-ded4-4ffb-8af9-ab6232fb45f2/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:05:47,150 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efd46924-ded4-4ffb-8af9-ab6232fb45f2/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:05:47,170 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efd46924-ded4-4ffb-8af9-ab6232fb45f2/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-19 07:05:47,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:05:47,611 INFO L263 TraceCheckSpWp]: Trace formula consists of 625 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 07:05:47,613 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:05:47,629 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-19 07:05:47,629 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:05:47,653 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-19 07:05:47,654 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2054879104] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:05:47,654 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-19 07:05:47,654 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4, 4, 4, 4] total 6 [2022-11-19 07:05:47,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733278308] [2022-11-19 07:05:47,655 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-19 07:05:47,655 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 07:05:47,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 07:05:47,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 07:05:47,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-19 07:05:47,656 INFO L87 Difference]: Start difference. First operand 348 states and 479 transitions. Second operand has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-19 07:05:47,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:05:47,956 INFO L93 Difference]: Finished difference Result 695 states and 958 transitions. [2022-11-19 07:05:47,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 07:05:47,957 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 28 [2022-11-19 07:05:47,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:05:47,963 INFO L225 Difference]: With dead ends: 695 [2022-11-19 07:05:47,964 INFO L226 Difference]: Without dead ends: 354 [2022-11-19 07:05:47,966 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2022-11-19 07:05:47,970 INFO L413 NwaCegarLoop]: 472 mSDtfsCounter, 172 mSDsluCounter, 989 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 1461 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 07:05:47,972 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [201 Valid, 1461 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 07:05:47,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2022-11-19 07:05:48,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 354. [2022-11-19 07:05:48,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 354 states, 247 states have (on average 1.3238866396761133) internal successors, (327), 254 states have internal predecessors, (327), 79 states have call successors, (79), 27 states have call predecessors, (79), 27 states have return successors, (78), 78 states have call predecessors, (78), 78 states have call successors, (78) [2022-11-19 07:05:48,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 484 transitions. [2022-11-19 07:05:48,022 INFO L78 Accepts]: Start accepts. Automaton has 354 states and 484 transitions. Word has length 28 [2022-11-19 07:05:48,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:05:48,023 INFO L495 AbstractCegarLoop]: Abstraction has 354 states and 484 transitions. [2022-11-19 07:05:48,023 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-19 07:05:48,023 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states and 484 transitions. [2022-11-19 07:05:48,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-11-19 07:05:48,024 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:05:48,025 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:05:48,039 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efd46924-ded4-4ffb-8af9-ab6232fb45f2/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-11-19 07:05:48,246 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efd46924-ded4-4ffb-8af9-ab6232fb45f2/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-19 07:05:48,440 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efd46924-ded4-4ffb-8af9-ab6232fb45f2/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (5)] Forceful destruction successful, exit code 0 [2022-11-19 07:05:48,635 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efd46924-ded4-4ffb-8af9-ab6232fb45f2/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efd46924-ded4-4ffb-8af9-ab6232fb45f2/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efd46924-ded4-4ffb-8af9-ab6232fb45f2/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt [2022-11-19 07:05:48,635 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:05:48,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:05:48,636 INFO L85 PathProgramCache]: Analyzing trace with hash 454711261, now seen corresponding path program 2 times [2022-11-19 07:05:48,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 07:05:48,637 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [807367176] [2022-11-19 07:05:48,637 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-19 07:05:48,637 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:05:48,637 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efd46924-ded4-4ffb-8af9-ab6232fb45f2/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 07:05:48,643 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efd46924-ded4-4ffb-8af9-ab6232fb45f2/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 07:05:48,647 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efd46924-ded4-4ffb-8af9-ab6232fb45f2/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-11-19 07:05:49,429 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-19 07:05:49,429 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 07:05:49,457 INFO L263 TraceCheckSpWp]: Trace formula consists of 658 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-19 07:05:49,459 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:05:49,537 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-19 07:05:49,538 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:05:49,714 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-19 07:05:49,715 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 07:05:49,715 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [807367176] [2022-11-19 07:05:49,715 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [807367176] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:05:49,715 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [627955313] [2022-11-19 07:05:49,715 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-19 07:05:49,716 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-19 07:05:49,716 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efd46924-ded4-4ffb-8af9-ab6232fb45f2/bin/utaipan-I9t0OCRTmS/cvc4 [2022-11-19 07:05:49,722 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efd46924-ded4-4ffb-8af9-ab6232fb45f2/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-19 07:05:49,726 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efd46924-ded4-4ffb-8af9-ab6232fb45f2/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2022-11-19 07:05:51,410 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-19 07:05:51,410 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 07:05:51,469 INFO L263 TraceCheckSpWp]: Trace formula consists of 658 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-19 07:05:51,471 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:05:51,504 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-19 07:05:51,504 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:05:51,550 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-19 07:05:51,550 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [627955313] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:05:51,551 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1076316846] [2022-11-19 07:05:51,551 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-19 07:05:51,551 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:05:51,551 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efd46924-ded4-4ffb-8af9-ab6232fb45f2/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:05:51,555 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efd46924-ded4-4ffb-8af9-ab6232fb45f2/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:05:51,559 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efd46924-ded4-4ffb-8af9-ab6232fb45f2/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-19 07:06:12,774 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-19 07:06:12,775 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 07:06:12,793 INFO L263 TraceCheckSpWp]: Trace formula consists of 658 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-19 07:06:12,795 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:06:12,830 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-19 07:06:12,830 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:06:12,875 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-19 07:06:12,875 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1076316846] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:06:12,876 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-19 07:06:12,876 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7, 7, 7, 7] total 12 [2022-11-19 07:06:12,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022516538] [2022-11-19 07:06:12,876 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-19 07:06:12,877 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-19 07:06:12,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 07:06:12,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-19 07:06:12,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2022-11-19 07:06:12,878 INFO L87 Difference]: Start difference. First operand 354 states and 484 transitions. Second operand has 12 states, 12 states have (on average 3.25) internal successors, (39), 12 states have internal predecessors, (39), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-19 07:06:13,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:06:13,586 INFO L93 Difference]: Finished difference Result 707 states and 971 transitions. [2022-11-19 07:06:13,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-19 07:06:13,587 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.25) internal successors, (39), 12 states have internal predecessors, (39), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 34 [2022-11-19 07:06:13,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:06:13,590 INFO L225 Difference]: With dead ends: 707 [2022-11-19 07:06:13,590 INFO L226 Difference]: Without dead ends: 366 [2022-11-19 07:06:13,594 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=94, Invalid=146, Unknown=0, NotChecked=0, Total=240 [2022-11-19 07:06:13,599 INFO L413 NwaCegarLoop]: 472 mSDtfsCounter, 180 mSDsluCounter, 2856 mSDsCounter, 0 mSdLazyCounter, 215 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 3328 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-19 07:06:13,601 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [209 Valid, 3328 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 215 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-19 07:06:13,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2022-11-19 07:06:13,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 366. [2022-11-19 07:06:13,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366 states, 259 states have (on average 1.308880308880309) internal successors, (339), 266 states have internal predecessors, (339), 79 states have call successors, (79), 27 states have call predecessors, (79), 27 states have return successors, (78), 78 states have call predecessors, (78), 78 states have call successors, (78) [2022-11-19 07:06:13,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 496 transitions. [2022-11-19 07:06:13,629 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 496 transitions. Word has length 34 [2022-11-19 07:06:13,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:06:13,630 INFO L495 AbstractCegarLoop]: Abstraction has 366 states and 496 transitions. [2022-11-19 07:06:13,630 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.25) internal successors, (39), 12 states have internal predecessors, (39), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-19 07:06:13,630 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 496 transitions. [2022-11-19 07:06:13,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-11-19 07:06:13,639 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:06:13,639 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:06:13,662 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efd46924-ded4-4ffb-8af9-ab6232fb45f2/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-11-19 07:06:13,873 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efd46924-ded4-4ffb-8af9-ab6232fb45f2/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-19 07:06:14,064 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efd46924-ded4-4ffb-8af9-ab6232fb45f2/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (8)] Forceful destruction successful, exit code 0 [2022-11-19 07:06:14,256 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efd46924-ded4-4ffb-8af9-ab6232fb45f2/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efd46924-ded4-4ffb-8af9-ab6232fb45f2/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efd46924-ded4-4ffb-8af9-ab6232fb45f2/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt [2022-11-19 07:06:14,257 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:06:14,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:06:14,258 INFO L85 PathProgramCache]: Analyzing trace with hash 343433233, now seen corresponding path program 3 times [2022-11-19 07:06:14,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 07:06:14,259 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [367965039] [2022-11-19 07:06:14,259 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-19 07:06:14,259 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:06:14,259 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efd46924-ded4-4ffb-8af9-ab6232fb45f2/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 07:06:14,260 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efd46924-ded4-4ffb-8af9-ab6232fb45f2/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 07:06:14,272 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efd46924-ded4-4ffb-8af9-ab6232fb45f2/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-11-19 07:06:15,899 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2022-11-19 07:06:15,899 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2022-11-19 07:06:15,899 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-19 07:06:16,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-19 07:06:16,459 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-11-19 07:06:16,459 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-19 07:06:16,460 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-19 07:06:16,486 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efd46924-ded4-4ffb-8af9-ab6232fb45f2/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-11-19 07:06:16,679 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efd46924-ded4-4ffb-8af9-ab6232fb45f2/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:06:16,682 INFO L444 BasicCegarLoop]: Path program histogram: [3, 1, 1] [2022-11-19 07:06:16,684 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-19 07:06:16,834 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:06:16 BoogieIcfgContainer [2022-11-19 07:06:16,834 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-19 07:06:16,835 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-19 07:06:16,835 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-19 07:06:16,835 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-19 07:06:16,835 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:05:43" (3/4) ... [2022-11-19 07:06:16,838 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-19 07:06:16,838 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-19 07:06:16,839 INFO L158 Benchmark]: Toolchain (without parser) took 42503.27ms. Allocated memory was 67.1MB in the beginning and 287.3MB in the end (delta: 220.2MB). Free memory was 42.1MB in the beginning and 106.2MB in the end (delta: -64.1MB). Peak memory consumption was 155.2MB. Max. memory is 16.1GB. [2022-11-19 07:06:16,839 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 67.1MB. Free memory was 47.1MB in the beginning and 47.1MB in the end (delta: 29.2kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 07:06:16,840 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2584.56ms. Allocated memory was 67.1MB in the beginning and 98.6MB in the end (delta: 31.5MB). Free memory was 41.9MB in the beginning and 60.5MB in the end (delta: -18.6MB). Peak memory consumption was 45.0MB. Max. memory is 16.1GB. [2022-11-19 07:06:16,840 INFO L158 Benchmark]: Boogie Procedure Inliner took 132.54ms. Allocated memory is still 98.6MB. Free memory was 60.5MB in the beginning and 52.1MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-19 07:06:16,841 INFO L158 Benchmark]: Boogie Preprocessor took 141.13ms. Allocated memory is still 98.6MB. Free memory was 52.1MB in the beginning and 43.7MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-19 07:06:16,841 INFO L158 Benchmark]: RCFGBuilder took 5821.31ms. Allocated memory was 98.6MB in the beginning and 197.1MB in the end (delta: 98.6MB). Free memory was 43.7MB in the beginning and 91.9MB in the end (delta: -48.2MB). Peak memory consumption was 75.2MB. Max. memory is 16.1GB. [2022-11-19 07:06:16,841 INFO L158 Benchmark]: TraceAbstraction took 33804.52ms. Allocated memory was 197.1MB in the beginning and 287.3MB in the end (delta: 90.2MB). Free memory was 91.9MB in the beginning and 106.2MB in the end (delta: -14.3MB). Peak memory consumption was 76.9MB. Max. memory is 16.1GB. [2022-11-19 07:06:16,842 INFO L158 Benchmark]: Witness Printer took 4.01ms. Allocated memory is still 287.3MB. Free memory is still 106.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 07:06:16,843 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 67.1MB. Free memory was 47.1MB in the beginning and 47.1MB in the end (delta: 29.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2584.56ms. Allocated memory was 67.1MB in the beginning and 98.6MB in the end (delta: 31.5MB). Free memory was 41.9MB in the beginning and 60.5MB in the end (delta: -18.6MB). Peak memory consumption was 45.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 132.54ms. Allocated memory is still 98.6MB. Free memory was 60.5MB in the beginning and 52.1MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 141.13ms. Allocated memory is still 98.6MB. Free memory was 52.1MB in the beginning and 43.7MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 5821.31ms. Allocated memory was 98.6MB in the beginning and 197.1MB in the end (delta: 98.6MB). Free memory was 43.7MB in the beginning and 91.9MB in the end (delta: -48.2MB). Peak memory consumption was 75.2MB. Max. memory is 16.1GB. * TraceAbstraction took 33804.52ms. Allocated memory was 197.1MB in the beginning and 287.3MB in the end (delta: 90.2MB). Free memory was 91.9MB in the beginning and 106.2MB in the end (delta: -14.3MB). Peak memory consumption was 76.9MB. Max. memory is 16.1GB. * Witness Printer took 4.01ms. Allocated memory is still 287.3MB. Free memory is still 106.2MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of large string literal at line 1481. Possible FailurePath: [L2657] struct ddv_timer timer_registered[1]; [L2613] struct ddv_pci_driver registered_pci_driver; [L32] void (* _ddv_module_exit)(void); [L3449] struct proc_dir_entry *proc_root_driver; [L2651] short number_timer_registered = 0; [L1481] char _ddv_module_param_nowayout [] = "Watchdog cannot be stopped once started (default=CONFIG_WATCHDOG_NOWAYOUT)"; [L2624] struct registered_irq registered_irq[16]; [L1745-L1752] static const struct file_operations zf_fops = { .owner = ((struct module *) 0), .llseek = no_llseek, .write = zf_write, .ioctl = zf_ioctl, .open = zf_open, .release = zf_close, }; [L1477] char _ddv_module_description[] = "MachZ ZF-Logic Watchdog driver"; [L1490] static int action = 0; [L1754-L1758] static struct miscdevice zf_miscdev = { .minor = 130, .name = "watchdog", .fops = (struct file_operations *)&zf_fops, }; [L2451] short number_fixed_genhd_used = 0; [L3938] int ddv_ioport_request_start; [L1478] char _ddv_module_license[] = "GPL"; [L1499] static unsigned long next_heartbeat = 0; [L2677] spinlock_t kernel_lock; [L1480] static int nowayout = 0; [L2641] struct ddv_tasklet tasklet_registered[1]; [L3363] request_queue_t fixed_request_queue[10]; [L1494] static unsigned long zf_is_open; [L2463] struct ddv_genhd genhd_registered[10]; [L1476] char _ddv_module_author[] = "Fernando Fuganti "; [L3365] int number_request_queue_used = 0; [L1498] static struct timer_list zf_timer; [L1485-L1489] static struct watchdog_info zf_info = { .options = 0x8000 | 0x0100, .firmware_version = 1, .identity = "ZF-Logic watchdog", }; [L1497] static spinlock_t zf_port_lock; [L3939] int ddv_ioport_request_len; [L1491] char _ddv_module_param_action [] = "after watchdog resets, generate: 0 = RESET(*) 1 = SMI 2 = NMI 3 = SCI"; [L1902] short number_cdev_registered = 0; [L2450] short number_genhd_registered = 0; [L1493] static int zf_action = 0x0800; [L2462] struct gendisk fixed_gendisk[10]; [L1495] static char zf_expect_close; [L1496] static spinlock_t zf_lock; [L2634] short number_tasklet_registered = 0; [L3759] struct ddv_tty_driver global_tty_driver; [L2667] struct work_struct *shared_workqueue[10]; [L20] int current_execution_context; [L1847] int (* _ddv_tmp_init)(void) = zf_init; [L1900] int fixed_cdev_used = 0; [L31] int (* _ddv_module_init)(void); [L1913] struct ddv_cdev cdev_registered[1]; [L232] unsigned long jiffies; [L1899] struct cdev fixed_cdev[1]; [L1765-L1767] static struct notifier_block zf_notifier = { .notifier_call = zf_notify_sys, }; [L1848] void (* _ddv_tmp_exit)(void) = zf_exit; VAL [={0:0}, ={-1:8}, ={0:0}, ={-1:7}, action=0, cdev_registered={56:0}, current_execution_context=0, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={57:0}, fixed_cdev_used=0, fixed_gendisk={52:0}, fixed_request_queue={46:0}, genhd_registered={48:0}, global_tty_driver={54:0}, jiffies=0, kernel_lock={44:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={41:0}, registered_pci_driver={40:0}, shared_workqueue={55:0}, tasklet_registered={45:0}, timer_registered={39:0}, zf_action=2048, zf_expect_close=0, zf_fops={42:0}, zf_info={50:0}, zf_is_open={47:0}, zf_lock={53:0}, zf_miscdev={43:0}, zf_notifier={58:0}, zf_port_lock={51:0}, zf_timer={49:0}] [L1852] _ddv_module_init = zf_init [L1853] _ddv_module_exit = zf_exit [L1854] CALL call_ddv() [L2741] int err; [L2743] current_execution_context = 1 [L2745] CALL init_kernel() [L2681] int i; VAL [={-1:7}, ={-1:8}, ={-1:7}, ={-1:8}, action=0, cdev_registered={56:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={57:0}, fixed_cdev_used=0, fixed_gendisk={52:0}, fixed_request_queue={46:0}, genhd_registered={48:0}, global_tty_driver={54:0}, jiffies=0, kernel_lock={44:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={41:0}, registered_pci_driver={40:0}, shared_workqueue={55:0}, tasklet_registered={45:0}, timer_registered={39:0}, zf_action=2048, zf_expect_close=0, zf_fops={42:0}, zf_info={50:0}, zf_is_open={47:0}, zf_lock={53:0}, zf_miscdev={43:0}, zf_notifier={58:0}, zf_port_lock={51:0}, zf_timer={49:0}] [L2683] CALL spin_lock_init(&kernel_lock) VAL [={-1:8}, ={-1:7}, ={-1:8}, ={-1:7}, action=0, cdev_registered={56:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={57:0}, fixed_cdev_used=0, fixed_gendisk={52:0}, fixed_request_queue={46:0}, genhd_registered={48:0}, global_tty_driver={54:0}, jiffies=0, kernel_lock={44:0}, lock={44:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={41:0}, registered_pci_driver={40:0}, shared_workqueue={55:0}, tasklet_registered={45:0}, timer_registered={39:0}, zf_action=2048, zf_expect_close=0, zf_fops={42:0}, zf_info={50:0}, zf_is_open={47:0}, zf_lock={53:0}, zf_miscdev={43:0}, zf_notifier={58:0}, zf_port_lock={51:0}, zf_timer={49:0}] [L4198] lock->init = 1 [L4199] lock->locked = 0 VAL [={-1:7}, ={-1:8}, ={-1:7}, ={-1:8}, action=0, cdev_registered={56:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={57:0}, fixed_cdev_used=0, fixed_gendisk={52:0}, fixed_request_queue={46:0}, genhd_registered={48:0}, global_tty_driver={54:0}, jiffies=0, kernel_lock={44:0}, lock={44:0}, lock={44:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={41:0}, registered_pci_driver={40:0}, shared_workqueue={55:0}, tasklet_registered={45:0}, timer_registered={39:0}, zf_action=2048, zf_expect_close=0, zf_fops={42:0}, zf_info={50:0}, zf_is_open={47:0}, zf_lock={53:0}, zf_miscdev={43:0}, zf_notifier={58:0}, zf_port_lock={51:0}, zf_timer={49:0}] [L2683] RET spin_lock_init(&kernel_lock) VAL [={-1:7}, ={-1:8}, ={-1:8}, ={-1:7}, action=0, cdev_registered={56:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={57:0}, fixed_cdev_used=0, fixed_gendisk={52:0}, fixed_request_queue={46:0}, genhd_registered={48:0}, global_tty_driver={54:0}, jiffies=0, kernel_lock={44:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={41:0}, registered_pci_driver={40:0}, shared_workqueue={55:0}, tasklet_registered={45:0}, timer_registered={39:0}, zf_action=2048, zf_expect_close=0, zf_fops={42:0}, zf_info={50:0}, zf_is_open={47:0}, zf_lock={53:0}, zf_miscdev={43:0}, zf_notifier={58:0}, zf_port_lock={51:0}, zf_timer={49:0}] [L2685] i = 0 VAL [={-1:7}, ={-1:8}, ={-1:7}, ={-1:8}, action=0, cdev_registered={56:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={57:0}, fixed_cdev_used=0, fixed_gendisk={52:0}, fixed_request_queue={46:0}, genhd_registered={48:0}, global_tty_driver={54:0}, i=0, jiffies=0, kernel_lock={44:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={41:0}, registered_pci_driver={40:0}, shared_workqueue={55:0}, tasklet_registered={45:0}, timer_registered={39:0}, zf_action=2048, zf_expect_close=0, zf_fops={42:0}, zf_info={50:0}, zf_is_open={47:0}, zf_lock={53:0}, zf_miscdev={43:0}, zf_notifier={58:0}, zf_port_lock={51:0}, zf_timer={49:0}] [L2685] COND TRUE i < 10 [L2686] shared_workqueue[i] = ((void *)0) VAL [={-1:7}, ={-1:8}, ={-1:7}, ={-1:8}, action=0, cdev_registered={56:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={57:0}, fixed_cdev_used=0, fixed_gendisk={52:0}, fixed_request_queue={46:0}, genhd_registered={48:0}, global_tty_driver={54:0}, i=0, jiffies=0, kernel_lock={44:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={41:0}, registered_pci_driver={40:0}, shared_workqueue={55:0}, tasklet_registered={45:0}, timer_registered={39:0}, zf_action=2048, zf_expect_close=0, zf_fops={42:0}, zf_info={50:0}, zf_is_open={47:0}, zf_lock={53:0}, zf_miscdev={43:0}, zf_notifier={58:0}, zf_port_lock={51:0}, zf_timer={49:0}] [L2685] i++ VAL [={-1:8}, ={-1:7}, ={-1:7}, ={-1:8}, action=0, cdev_registered={56:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={57:0}, fixed_cdev_used=0, fixed_gendisk={52:0}, fixed_request_queue={46:0}, genhd_registered={48:0}, global_tty_driver={54:0}, i=1, jiffies=0, kernel_lock={44:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={41:0}, registered_pci_driver={40:0}, shared_workqueue={55:0}, tasklet_registered={45:0}, timer_registered={39:0}, zf_action=2048, zf_expect_close=0, zf_fops={42:0}, zf_info={50:0}, zf_is_open={47:0}, zf_lock={53:0}, zf_miscdev={43:0}, zf_notifier={58:0}, zf_port_lock={51:0}, zf_timer={49:0}] [L2685] COND TRUE i < 10 [L2686] shared_workqueue[i] = ((void *)0) VAL [={-1:7}, ={-1:8}, ={-1:7}, ={-1:8}, action=0, cdev_registered={56:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={57:0}, fixed_cdev_used=0, fixed_gendisk={52:0}, fixed_request_queue={46:0}, genhd_registered={48:0}, global_tty_driver={54:0}, i=1, jiffies=0, kernel_lock={44:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={41:0}, registered_pci_driver={40:0}, shared_workqueue={55:0}, tasklet_registered={45:0}, timer_registered={39:0}, zf_action=2048, zf_expect_close=0, zf_fops={42:0}, zf_info={50:0}, zf_is_open={47:0}, zf_lock={53:0}, zf_miscdev={43:0}, zf_notifier={58:0}, zf_port_lock={51:0}, zf_timer={49:0}] [L2685] i++ VAL [={-1:8}, ={-1:8}, ={-1:7}, ={-1:7}, action=0, cdev_registered={56:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={57:0}, fixed_cdev_used=0, fixed_gendisk={52:0}, fixed_request_queue={46:0}, genhd_registered={48:0}, global_tty_driver={54:0}, i=2, jiffies=0, kernel_lock={44:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={41:0}, registered_pci_driver={40:0}, shared_workqueue={55:0}, tasklet_registered={45:0}, timer_registered={39:0}, zf_action=2048, zf_expect_close=0, zf_fops={42:0}, zf_info={50:0}, zf_is_open={47:0}, zf_lock={53:0}, zf_miscdev={43:0}, zf_notifier={58:0}, zf_port_lock={51:0}, zf_timer={49:0}] [L2685] COND TRUE i < 10 [L2686] shared_workqueue[i] = ((void *)0) VAL [={-1:7}, ={-1:8}, ={-1:8}, ={-1:7}, action=0, cdev_registered={56:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={57:0}, fixed_cdev_used=0, fixed_gendisk={52:0}, fixed_request_queue={46:0}, genhd_registered={48:0}, global_tty_driver={54:0}, i=2, jiffies=0, kernel_lock={44:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={41:0}, registered_pci_driver={40:0}, shared_workqueue={55:0}, tasklet_registered={45:0}, timer_registered={39:0}, zf_action=2048, zf_expect_close=0, zf_fops={42:0}, zf_info={50:0}, zf_is_open={47:0}, zf_lock={53:0}, zf_miscdev={43:0}, zf_notifier={58:0}, zf_port_lock={51:0}, zf_timer={49:0}] [L2685] i++ VAL [={-1:7}, ={-1:7}, ={-1:8}, ={-1:8}, action=0, cdev_registered={56:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={57:0}, fixed_cdev_used=0, fixed_gendisk={52:0}, fixed_request_queue={46:0}, genhd_registered={48:0}, global_tty_driver={54:0}, i=3, jiffies=0, kernel_lock={44:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={41:0}, registered_pci_driver={40:0}, shared_workqueue={55:0}, tasklet_registered={45:0}, timer_registered={39:0}, zf_action=2048, zf_expect_close=0, zf_fops={42:0}, zf_info={50:0}, zf_is_open={47:0}, zf_lock={53:0}, zf_miscdev={43:0}, zf_notifier={58:0}, zf_port_lock={51:0}, zf_timer={49:0}] [L2685] COND TRUE i < 10 [L2686] shared_workqueue[i] = ((void *)0) VAL [={-1:8}, ={-1:8}, ={-1:7}, ={-1:7}, action=0, cdev_registered={56:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={57:0}, fixed_cdev_used=0, fixed_gendisk={52:0}, fixed_request_queue={46:0}, genhd_registered={48:0}, global_tty_driver={54:0}, i=3, jiffies=0, kernel_lock={44:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={41:0}, registered_pci_driver={40:0}, shared_workqueue={55:0}, tasklet_registered={45:0}, timer_registered={39:0}, zf_action=2048, zf_expect_close=0, zf_fops={42:0}, zf_info={50:0}, zf_is_open={47:0}, zf_lock={53:0}, zf_miscdev={43:0}, zf_notifier={58:0}, zf_port_lock={51:0}, zf_timer={49:0}] [L2685] i++ VAL [={-1:7}, ={-1:7}, ={-1:8}, ={-1:8}, action=0, cdev_registered={56:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={57:0}, fixed_cdev_used=0, fixed_gendisk={52:0}, fixed_request_queue={46:0}, genhd_registered={48:0}, global_tty_driver={54:0}, i=4, jiffies=0, kernel_lock={44:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={41:0}, registered_pci_driver={40:0}, shared_workqueue={55:0}, tasklet_registered={45:0}, timer_registered={39:0}, zf_action=2048, zf_expect_close=0, zf_fops={42:0}, zf_info={50:0}, zf_is_open={47:0}, zf_lock={53:0}, zf_miscdev={43:0}, zf_notifier={58:0}, zf_port_lock={51:0}, zf_timer={49:0}] [L2685] COND TRUE i < 10 [L2686] shared_workqueue[i] = ((void *)0) VAL [={-1:7}, ={-1:8}, ={-1:7}, ={-1:8}, action=0, cdev_registered={56:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={57:0}, fixed_cdev_used=0, fixed_gendisk={52:0}, fixed_request_queue={46:0}, genhd_registered={48:0}, global_tty_driver={54:0}, i=4, jiffies=0, kernel_lock={44:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={41:0}, registered_pci_driver={40:0}, shared_workqueue={55:0}, tasklet_registered={45:0}, timer_registered={39:0}, zf_action=2048, zf_expect_close=0, zf_fops={42:0}, zf_info={50:0}, zf_is_open={47:0}, zf_lock={53:0}, zf_miscdev={43:0}, zf_notifier={58:0}, zf_port_lock={51:0}, zf_timer={49:0}] [L2685] i++ VAL [={-1:7}, ={-1:7}, ={-1:8}, ={-1:8}, action=0, cdev_registered={56:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={57:0}, fixed_cdev_used=0, fixed_gendisk={52:0}, fixed_request_queue={46:0}, genhd_registered={48:0}, global_tty_driver={54:0}, i=5, jiffies=0, kernel_lock={44:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={41:0}, registered_pci_driver={40:0}, shared_workqueue={55:0}, tasklet_registered={45:0}, timer_registered={39:0}, zf_action=2048, zf_expect_close=0, zf_fops={42:0}, zf_info={50:0}, zf_is_open={47:0}, zf_lock={53:0}, zf_miscdev={43:0}, zf_notifier={58:0}, zf_port_lock={51:0}, zf_timer={49:0}] [L2685] COND TRUE i < 10 [L2686] shared_workqueue[i] = ((void *)0) VAL [={-1:8}, ={-1:7}, ={-1:7}, ={-1:8}, action=0, cdev_registered={56:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={57:0}, fixed_cdev_used=0, fixed_gendisk={52:0}, fixed_request_queue={46:0}, genhd_registered={48:0}, global_tty_driver={54:0}, i=5, jiffies=0, kernel_lock={44:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={41:0}, registered_pci_driver={40:0}, shared_workqueue={55:0}, tasklet_registered={45:0}, timer_registered={39:0}, zf_action=2048, zf_expect_close=0, zf_fops={42:0}, zf_info={50:0}, zf_is_open={47:0}, zf_lock={53:0}, zf_miscdev={43:0}, zf_notifier={58:0}, zf_port_lock={51:0}, zf_timer={49:0}] [L2685] i++ VAL [={-1:7}, ={-1:7}, ={-1:8}, ={-1:8}, action=0, cdev_registered={56:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={57:0}, fixed_cdev_used=0, fixed_gendisk={52:0}, fixed_request_queue={46:0}, genhd_registered={48:0}, global_tty_driver={54:0}, i=6, jiffies=0, kernel_lock={44:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={41:0}, registered_pci_driver={40:0}, shared_workqueue={55:0}, tasklet_registered={45:0}, timer_registered={39:0}, zf_action=2048, zf_expect_close=0, zf_fops={42:0}, zf_info={50:0}, zf_is_open={47:0}, zf_lock={53:0}, zf_miscdev={43:0}, zf_notifier={58:0}, zf_port_lock={51:0}, zf_timer={49:0}] [L2685] COND TRUE i < 10 [L2686] shared_workqueue[i] = ((void *)0) VAL [={-1:7}, ={-1:8}, ={-1:8}, ={-1:7}, action=0, cdev_registered={56:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={57:0}, fixed_cdev_used=0, fixed_gendisk={52:0}, fixed_request_queue={46:0}, genhd_registered={48:0}, global_tty_driver={54:0}, i=6, jiffies=0, kernel_lock={44:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={41:0}, registered_pci_driver={40:0}, shared_workqueue={55:0}, tasklet_registered={45:0}, timer_registered={39:0}, zf_action=2048, zf_expect_close=0, zf_fops={42:0}, zf_info={50:0}, zf_is_open={47:0}, zf_lock={53:0}, zf_miscdev={43:0}, zf_notifier={58:0}, zf_port_lock={51:0}, zf_timer={49:0}] [L2685] i++ VAL [={-1:7}, ={-1:8}, ={-1:7}, ={-1:8}, action=0, cdev_registered={56:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={57:0}, fixed_cdev_used=0, fixed_gendisk={52:0}, fixed_request_queue={46:0}, genhd_registered={48:0}, global_tty_driver={54:0}, i=7, jiffies=0, kernel_lock={44:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={41:0}, registered_pci_driver={40:0}, shared_workqueue={55:0}, tasklet_registered={45:0}, timer_registered={39:0}, zf_action=2048, zf_expect_close=0, zf_fops={42:0}, zf_info={50:0}, zf_is_open={47:0}, zf_lock={53:0}, zf_miscdev={43:0}, zf_notifier={58:0}, zf_port_lock={51:0}, zf_timer={49:0}] [L2685] COND TRUE i < 10 [L2686] shared_workqueue[i] = ((void *)0) VAL [={-1:8}, ={-1:7}, ={-1:7}, ={-1:8}, action=0, cdev_registered={56:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={57:0}, fixed_cdev_used=0, fixed_gendisk={52:0}, fixed_request_queue={46:0}, genhd_registered={48:0}, global_tty_driver={54:0}, i=7, jiffies=0, kernel_lock={44:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={41:0}, registered_pci_driver={40:0}, shared_workqueue={55:0}, tasklet_registered={45:0}, timer_registered={39:0}, zf_action=2048, zf_expect_close=0, zf_fops={42:0}, zf_info={50:0}, zf_is_open={47:0}, zf_lock={53:0}, zf_miscdev={43:0}, zf_notifier={58:0}, zf_port_lock={51:0}, zf_timer={49:0}] [L2685] i++ VAL [={-1:8}, ={-1:7}, ={-1:7}, ={-1:8}, action=0, cdev_registered={56:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={57:0}, fixed_cdev_used=0, fixed_gendisk={52:0}, fixed_request_queue={46:0}, genhd_registered={48:0}, global_tty_driver={54:0}, i=8, jiffies=0, kernel_lock={44:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={41:0}, registered_pci_driver={40:0}, shared_workqueue={55:0}, tasklet_registered={45:0}, timer_registered={39:0}, zf_action=2048, zf_expect_close=0, zf_fops={42:0}, zf_info={50:0}, zf_is_open={47:0}, zf_lock={53:0}, zf_miscdev={43:0}, zf_notifier={58:0}, zf_port_lock={51:0}, zf_timer={49:0}] [L2685] COND TRUE i < 10 [L2686] shared_workqueue[i] = ((void *)0) VAL [={-1:8}, ={-1:8}, ={-1:7}, ={-1:7}, action=0, cdev_registered={56:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={57:0}, fixed_cdev_used=0, fixed_gendisk={52:0}, fixed_request_queue={46:0}, genhd_registered={48:0}, global_tty_driver={54:0}, i=8, jiffies=0, kernel_lock={44:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={41:0}, registered_pci_driver={40:0}, shared_workqueue={55:0}, tasklet_registered={45:0}, timer_registered={39:0}, zf_action=2048, zf_expect_close=0, zf_fops={42:0}, zf_info={50:0}, zf_is_open={47:0}, zf_lock={53:0}, zf_miscdev={43:0}, zf_notifier={58:0}, zf_port_lock={51:0}, zf_timer={49:0}] [L2685] i++ VAL [={-1:7}, ={-1:8}, ={-1:7}, ={-1:8}, action=0, cdev_registered={56:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={57:0}, fixed_cdev_used=0, fixed_gendisk={52:0}, fixed_request_queue={46:0}, genhd_registered={48:0}, global_tty_driver={54:0}, i=9, jiffies=0, kernel_lock={44:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={41:0}, registered_pci_driver={40:0}, shared_workqueue={55:0}, tasklet_registered={45:0}, timer_registered={39:0}, zf_action=2048, zf_expect_close=0, zf_fops={42:0}, zf_info={50:0}, zf_is_open={47:0}, zf_lock={53:0}, zf_miscdev={43:0}, zf_notifier={58:0}, zf_port_lock={51:0}, zf_timer={49:0}] [L2685] COND TRUE i < 10 [L2686] shared_workqueue[i] = ((void *)0) VAL [={-1:8}, ={-1:7}, ={-1:8}, ={-1:7}, action=0, cdev_registered={56:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={57:0}, fixed_cdev_used=0, fixed_gendisk={52:0}, fixed_request_queue={46:0}, genhd_registered={48:0}, global_tty_driver={54:0}, i=9, jiffies=0, kernel_lock={44:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={41:0}, registered_pci_driver={40:0}, shared_workqueue={55:0}, tasklet_registered={45:0}, timer_registered={39:0}, zf_action=2048, zf_expect_close=0, zf_fops={42:0}, zf_info={50:0}, zf_is_open={47:0}, zf_lock={53:0}, zf_miscdev={43:0}, zf_notifier={58:0}, zf_port_lock={51:0}, zf_timer={49:0}] [L2685] i++ VAL [={-1:7}, ={-1:7}, ={-1:8}, ={-1:8}, action=0, cdev_registered={56:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={57:0}, fixed_cdev_used=0, fixed_gendisk={52:0}, fixed_request_queue={46:0}, genhd_registered={48:0}, global_tty_driver={54:0}, i=10, jiffies=0, kernel_lock={44:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={41:0}, registered_pci_driver={40:0}, shared_workqueue={55:0}, tasklet_registered={45:0}, timer_registered={39:0}, zf_action=2048, zf_expect_close=0, zf_fops={42:0}, zf_info={50:0}, zf_is_open={47:0}, zf_lock={53:0}, zf_miscdev={43:0}, zf_notifier={58:0}, zf_port_lock={51:0}, zf_timer={49:0}] [L2685] COND FALSE !(i < 10) VAL [={-1:8}, ={-1:8}, ={-1:7}, ={-1:7}, action=0, cdev_registered={56:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={57:0}, fixed_cdev_used=0, fixed_gendisk={52:0}, fixed_request_queue={46:0}, genhd_registered={48:0}, global_tty_driver={54:0}, i=10, jiffies=0, kernel_lock={44:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={41:0}, registered_pci_driver={40:0}, shared_workqueue={55:0}, tasklet_registered={45:0}, timer_registered={39:0}, zf_action=2048, zf_expect_close=0, zf_fops={42:0}, zf_info={50:0}, zf_is_open={47:0}, zf_lock={53:0}, zf_miscdev={43:0}, zf_notifier={58:0}, zf_port_lock={51:0}, zf_timer={49:0}] [L2689] i = 0 VAL [={-1:8}, ={-1:8}, ={-1:7}, ={-1:7}, action=0, cdev_registered={56:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={57:0}, fixed_cdev_used=0, fixed_gendisk={52:0}, fixed_request_queue={46:0}, genhd_registered={48:0}, global_tty_driver={54:0}, i=0, jiffies=0, kernel_lock={44:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={41:0}, registered_pci_driver={40:0}, shared_workqueue={55:0}, tasklet_registered={45:0}, timer_registered={39:0}, zf_action=2048, zf_expect_close=0, zf_fops={42:0}, zf_info={50:0}, zf_is_open={47:0}, zf_lock={53:0}, zf_miscdev={43:0}, zf_notifier={58:0}, zf_port_lock={51:0}, zf_timer={49:0}] [L2689] COND TRUE i < 1 [L2690] tasklet_registered[i].tasklet = ((void *)0) [L2691] tasklet_registered[i].is_running = 0 VAL [={-1:8}, ={-1:7}, ={-1:8}, ={-1:7}, action=0, cdev_registered={56:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={57:0}, fixed_cdev_used=0, fixed_gendisk={52:0}, fixed_request_queue={46:0}, genhd_registered={48:0}, global_tty_driver={54:0}, i=0, jiffies=0, kernel_lock={44:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={41:0}, registered_pci_driver={40:0}, shared_workqueue={55:0}, tasklet_registered={45:0}, timer_registered={39:0}, zf_action=2048, zf_expect_close=0, zf_fops={42:0}, zf_info={50:0}, zf_is_open={47:0}, zf_lock={53:0}, zf_miscdev={43:0}, zf_notifier={58:0}, zf_port_lock={51:0}, zf_timer={49:0}] [L2689] i++ VAL [={-1:8}, ={-1:8}, ={-1:7}, ={-1:7}, action=0, cdev_registered={56:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={57:0}, fixed_cdev_used=0, fixed_gendisk={52:0}, fixed_request_queue={46:0}, genhd_registered={48:0}, global_tty_driver={54:0}, i=1, jiffies=0, kernel_lock={44:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={41:0}, registered_pci_driver={40:0}, shared_workqueue={55:0}, tasklet_registered={45:0}, timer_registered={39:0}, zf_action=2048, zf_expect_close=0, zf_fops={42:0}, zf_info={50:0}, zf_is_open={47:0}, zf_lock={53:0}, zf_miscdev={43:0}, zf_notifier={58:0}, zf_port_lock={51:0}, zf_timer={49:0}] [L2689] COND FALSE !(i < 1) VAL [={-1:7}, ={-1:7}, ={-1:8}, ={-1:8}, action=0, cdev_registered={56:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={57:0}, fixed_cdev_used=0, fixed_gendisk={52:0}, fixed_request_queue={46:0}, genhd_registered={48:0}, global_tty_driver={54:0}, i=1, jiffies=0, kernel_lock={44:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={41:0}, registered_pci_driver={40:0}, shared_workqueue={55:0}, tasklet_registered={45:0}, timer_registered={39:0}, zf_action=2048, zf_expect_close=0, zf_fops={42:0}, zf_info={50:0}, zf_is_open={47:0}, zf_lock={53:0}, zf_miscdev={43:0}, zf_notifier={58:0}, zf_port_lock={51:0}, zf_timer={49:0}] [L2745] RET init_kernel() [L2747] CALL (* _ddv_module_init)() [L1778] int ret; VAL [={-1:7}, ={-1:7}, ={-1:8}, ={-1:8}, action=0, cdev_registered={56:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={57:0}, fixed_cdev_used=0, fixed_gendisk={52:0}, fixed_request_queue={46:0}, genhd_registered={48:0}, global_tty_driver={54:0}, jiffies=0, kernel_lock={44:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={41:0}, registered_pci_driver={40:0}, shared_workqueue={55:0}, tasklet_registered={45:0}, timer_registered={39:0}, zf_action=2048, zf_expect_close=0, zf_fops={42:0}, zf_info={50:0}, zf_is_open={47:0}, zf_lock={53:0}, zf_miscdev={43:0}, zf_notifier={58:0}, zf_port_lock={51:0}, zf_timer={49:0}] [L1780] CALL printk("<6>" "machzwd" ": MachZ ZF-Logic Watchdog driver initializing.\n") VAL [={-1:7}, ={-1:8}, ={-1:7}, ={-1:8}, action=0, cdev_registered={56:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={57:0}, fixed_cdev_used=0, fixed_gendisk={52:0}, fixed_request_queue={46:0}, fmt={21:0}, genhd_registered={48:0}, global_tty_driver={54:0}, jiffies=0, kernel_lock={44:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={41:0}, registered_pci_driver={40:0}, shared_workqueue={55:0}, tasklet_registered={45:0}, timer_registered={39:0}, zf_action=2048, zf_expect_close=0, zf_fops={42:0}, zf_info={50:0}, zf_is_open={47:0}, zf_lock={53:0}, zf_miscdev={43:0}, zf_notifier={58:0}, zf_port_lock={51:0}, zf_timer={49:0}] [L4525] return 0; VAL [={-1:8}, ={-1:8}, ={-1:7}, ={-1:7}, \result=0, action=0, cdev_registered={56:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={57:0}, fixed_cdev_used=0, fixed_gendisk={52:0}, fixed_request_queue={46:0}, fmt={21:0}, fmt={21:0}, genhd_registered={48:0}, global_tty_driver={54:0}, jiffies=0, kernel_lock={44:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={41:0}, registered_pci_driver={40:0}, shared_workqueue={55:0}, tasklet_registered={45:0}, timer_registered={39:0}, zf_action=2048, zf_expect_close=0, zf_fops={42:0}, zf_info={50:0}, zf_is_open={47:0}, zf_lock={53:0}, zf_miscdev={43:0}, zf_notifier={58:0}, zf_port_lock={51:0}, zf_timer={49:0}] [L1780] RET printk("<6>" "machzwd" ": MachZ ZF-Logic Watchdog driver initializing.\n") VAL [={-1:8}, ={-1:7}, ={-1:7}, ={-1:8}, action=0, cdev_registered={56:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={57:0}, fixed_cdev_used=0, fixed_gendisk={52:0}, fixed_request_queue={46:0}, genhd_registered={48:0}, global_tty_driver={54:0}, jiffies=0, kernel_lock={44:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, printk("<6>" "machzwd" ": MachZ ZF-Logic Watchdog driver initializing.\n")=0, proc_root_driver={0:0}, registered_irq={41:0}, registered_pci_driver={40:0}, shared_workqueue={55:0}, tasklet_registered={45:0}, timer_registered={39:0}, zf_action=2048, zf_expect_close=0, zf_fops={42:0}, zf_info={50:0}, zf_is_open={47:0}, zf_lock={53:0}, zf_miscdev={43:0}, zf_notifier={58:0}, zf_port_lock={51:0}, zf_timer={49:0}] [L1782] CALL zf_readw(0x02) VAL [={-1:7}, ={-1:8}, ={-1:8}, ={-1:7}, action=0, cdev_registered={56:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={57:0}, fixed_cdev_used=0, fixed_gendisk={52:0}, fixed_request_queue={46:0}, genhd_registered={48:0}, global_tty_driver={54:0}, jiffies=0, kernel_lock={44:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={41:0}, registered_pci_driver={40:0}, shared_workqueue={55:0}, tasklet_registered={45:0}, timer_registered={39:0}, zf_action=2048, zf_expect_close=0, zf_fops={42:0}, zf_info={50:0}, zf_is_open={47:0}, zf_lock={53:0}, zf_miscdev={43:0}, zf_notifier={58:0}, zf_port_lock={51:0}, zf_timer={49:0}] [L1471] CALL outb(port, 0x218) VAL [={-1:7}, ={-1:8}, ={-1:7}, ={-1:8}, \old(byte)=2, \old(port)=536, action=0, cdev_registered={56:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={57:0}, fixed_cdev_used=0, fixed_gendisk={52:0}, fixed_request_queue={46:0}, genhd_registered={48:0}, global_tty_driver={54:0}, jiffies=0, kernel_lock={44:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={41:0}, registered_pci_driver={40:0}, shared_workqueue={55:0}, tasklet_registered={45:0}, timer_registered={39:0}, zf_action=2048, zf_expect_close=0, zf_fops={42:0}, zf_info={50:0}, zf_is_open={47:0}, zf_lock={53:0}, zf_miscdev={43:0}, zf_notifier={58:0}, zf_port_lock={51:0}, zf_timer={49:0}] [L3978] CALL __VERIFIER_assert(port >= ddv_ioport_request_start && port < ddv_ioport_request_start + ddv_ioport_request_len, "I/O port is requested") VAL [={-1:8}, ={-1:8}, ={-1:7}, ={-1:7}, \old(expression)=0, action=0, cdev_registered={56:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={57:0}, fixed_cdev_used=0, fixed_gendisk={52:0}, fixed_request_queue={46:0}, genhd_registered={48:0}, global_tty_driver={54:0}, jiffies=0, kernel_lock={44:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={41:0}, registered_pci_driver={40:0}, shared_workqueue={55:0}, tasklet_registered={45:0}, timer_registered={39:0}, x={28:0}, zf_action=2048, zf_expect_close=0, zf_fops={42:0}, zf_info={50:0}, zf_is_open={47:0}, zf_lock={53:0}, zf_miscdev={43:0}, zf_notifier={58:0}, zf_port_lock={51:0}, zf_timer={49:0}] [L12] COND TRUE !expression VAL [={-1:7}, ={-1:8}, ={-1:7}, ={-1:8}, \old(expression)=0, action=0, cdev_registered={56:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, expression=0, fixed_cdev={57:0}, fixed_cdev_used=0, fixed_gendisk={52:0}, fixed_request_queue={46:0}, genhd_registered={48:0}, global_tty_driver={54:0}, jiffies=0, kernel_lock={44:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={41:0}, registered_pci_driver={40:0}, shared_workqueue={55:0}, tasklet_registered={45:0}, timer_registered={39:0}, x={28:0}, x={28:0}, zf_action=2048, zf_expect_close=0, zf_fops={42:0}, zf_info={50:0}, zf_is_open={47:0}, zf_lock={53:0}, zf_miscdev={43:0}, zf_notifier={58:0}, zf_port_lock={51:0}, zf_timer={49:0}] [L12] reach_error() VAL [={-1:8}, ={-1:8}, ={-1:7}, ={-1:7}, \old(expression)=0, action=0, cdev_registered={56:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, expression=0, fixed_cdev={57:0}, fixed_cdev_used=0, fixed_gendisk={52:0}, fixed_request_queue={46:0}, genhd_registered={48:0}, global_tty_driver={54:0}, jiffies=0, kernel_lock={44:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={41:0}, registered_pci_driver={40:0}, shared_workqueue={55:0}, tasklet_registered={45:0}, timer_registered={39:0}, x={28:0}, x={28:0}, zf_action=2048, zf_expect_close=0, zf_fops={42:0}, zf_info={50:0}, zf_is_open={47:0}, zf_lock={53:0}, zf_miscdev={43:0}, zf_notifier={58:0}, zf_port_lock={51:0}, zf_timer={49:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 30 procedures, 360 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 33.6s, OverallIterations: 5, TraceHistogramMax: 10, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 412 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 354 mSDsluCounter, 6220 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4313 mSDsCounter, 27 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 281 IncrementalHoareTripleChecker+Invalid, 308 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 27 mSolverCounterUnsat, 1907 mSDtfsCounter, 281 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 411 GetRequests, 391 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=366occurred in iteration=4, InterpolantAutomatonStates: 23, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 4 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 25.7s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 280 NumberOfCodeBlocks, 280 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 406 ConstructedInterpolants, 0 QuantifiedInterpolants, 612 SizeOfPredicates, 7 NumberOfNonLiveVariables, 5039 ConjunctsInSsa, 30 ConjunctsInUnsatCore, 14 InterpolantComputations, 2 PerfectInterpolantSequences, 12/114 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-19 07:06:16,879 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efd46924-ded4-4ffb-8af9-ab6232fb45f2/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample