./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--isdn--i4l--isdn.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17d707b5-0aac-438b-b0c9-4d670a171644/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17d707b5-0aac-438b-b0c9-4d670a171644/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_17d707b5-0aac-438b-b0c9-4d670a171644/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17d707b5-0aac-438b-b0c9-4d670a171644/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--isdn--i4l--isdn.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17d707b5-0aac-438b-b0c9-4d670a171644/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17d707b5-0aac-438b-b0c9-4d670a171644/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 64bit --witnessprinter.graph.data.programhash dc84e51e523cd7d1ed5e8ead538b5d3b5209e177ea77bffad6006fa4b66e1367 --- 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 08:00:34,044 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 08:00:34,046 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 08:00:34,065 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 08:00:34,066 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 08:00:34,067 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 08:00:34,069 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 08:00:34,071 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 08:00:34,077 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 08:00:34,078 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 08:00:34,083 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 08:00:34,084 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 08:00:34,085 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 08:00:34,086 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 08:00:34,088 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 08:00:34,089 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 08:00:34,090 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 08:00:34,092 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 08:00:34,094 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 08:00:34,096 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 08:00:34,097 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 08:00:34,103 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 08:00:34,104 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 08:00:34,105 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 08:00:34,115 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 08:00:34,116 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 08:00:34,116 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 08:00:34,117 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 08:00:34,125 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 08:00:34,126 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 08:00:34,127 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 08:00:34,127 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 08:00:34,128 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 08:00:34,129 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 08:00:34,130 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 08:00:34,131 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 08:00:34,131 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 08:00:34,132 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 08:00:34,134 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 08:00:34,135 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 08:00:34,136 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 08:00:34,138 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17d707b5-0aac-438b-b0c9-4d670a171644/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-19 08:00:34,173 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 08:00:34,174 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 08:00:34,175 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 08:00:34,175 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 08:00:34,176 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 08:00:34,176 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 08:00:34,177 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 08:00:34,177 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 08:00:34,177 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 08:00:34,177 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 08:00:34,179 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 08:00:34,179 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 08:00:34,179 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 08:00:34,180 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 08:00:34,180 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 08:00:34,180 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 08:00:34,180 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 08:00:34,181 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 08:00:34,182 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 08:00:34,182 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 08:00:34,182 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 08:00:34,182 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 08:00:34,183 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 08:00:34,183 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 08:00:34,183 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 08:00:34,183 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 08:00:34,184 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 08:00:34,184 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 08:00:34,184 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 08:00:34,184 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:00:34,185 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 08:00:34,185 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 08:00:34,185 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 08:00:34,186 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 08:00:34,186 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 08:00:34,186 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 08:00:34,186 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 08:00:34,187 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 08:00:34,187 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_17d707b5-0aac-438b-b0c9-4d670a171644/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17d707b5-0aac-438b-b0c9-4d670a171644/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dc84e51e523cd7d1ed5e8ead538b5d3b5209e177ea77bffad6006fa4b66e1367 [2022-11-19 08:00:34,522 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 08:00:34,566 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 08:00:34,570 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 08:00:34,571 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 08:00:34,572 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 08:00:34,574 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17d707b5-0aac-438b-b0c9-4d670a171644/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--isdn--i4l--isdn.ko-entry_point.cil.out.i [2022-11-19 08:00:34,655 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17d707b5-0aac-438b-b0c9-4d670a171644/bin/utaipan-I9t0OCRTmS/data/da05318e7/6c359fb86e0d4690885fda14d82ff021/FLAG6a46bd962 [2022-11-19 08:00:36,317 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 08:00:36,320 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17d707b5-0aac-438b-b0c9-4d670a171644/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--isdn--i4l--isdn.ko-entry_point.cil.out.i [2022-11-19 08:00:36,467 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17d707b5-0aac-438b-b0c9-4d670a171644/bin/utaipan-I9t0OCRTmS/data/da05318e7/6c359fb86e0d4690885fda14d82ff021/FLAG6a46bd962 [2022-11-19 08:00:36,568 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17d707b5-0aac-438b-b0c9-4d670a171644/bin/utaipan-I9t0OCRTmS/data/da05318e7/6c359fb86e0d4690885fda14d82ff021 [2022-11-19 08:00:36,571 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 08:00:36,574 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 08:00:36,578 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 08:00:36,578 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 08:00:36,582 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 08:00:36,583 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:00:36" (1/1) ... [2022-11-19 08:00:36,585 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73255d50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:36, skipping insertion in model container [2022-11-19 08:00:36,585 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:00:36" (1/1) ... [2022-11-19 08:00:36,592 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 08:00:36,912 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 08:00:46,634 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_17d707b5-0aac-438b-b0c9-4d670a171644/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--isdn--i4l--isdn.ko-entry_point.cil.out.i[788125,788138] [2022-11-19 08:00:47,237 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:00:47,297 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 08:00:48,738 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_17d707b5-0aac-438b-b0c9-4d670a171644/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--isdn--i4l--isdn.ko-entry_point.cil.out.i[788125,788138] [2022-11-19 08:00:48,760 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:00:49,297 INFO L208 MainTranslator]: Completed translation [2022-11-19 08:00:49,297 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:49 WrapperNode [2022-11-19 08:00:49,298 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 08:00:49,299 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 08:00:49,299 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 08:00:49,299 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 08:00:49,306 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:49" (1/1) ... [2022-11-19 08:00:49,611 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:49" (1/1) ... [2022-11-19 08:00:50,489 INFO L138 Inliner]: procedures = 819, calls = 13996, calls flagged for inlining = 321, calls inlined = 265, statements flattened = 26746 [2022-11-19 08:00:50,490 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 08:00:50,490 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 08:00:50,491 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 08:00:50,491 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 08:00:50,500 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:49" (1/1) ... [2022-11-19 08:00:50,501 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:49" (1/1) ... [2022-11-19 08:00:50,951 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:49" (1/1) ... [2022-11-19 08:00:50,952 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:49" (1/1) ... [2022-11-19 08:00:51,583 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:49" (1/1) ... [2022-11-19 08:00:51,670 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:49" (1/1) ... [2022-11-19 08:00:51,750 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:49" (1/1) ... [2022-11-19 08:00:51,800 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:49" (1/1) ... [2022-11-19 08:00:51,946 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 08:00:51,947 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 08:00:51,948 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 08:00:51,948 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 08:00:51,949 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:49" (1/1) ... [2022-11-19 08:00:51,955 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:00:51,965 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17d707b5-0aac-438b-b0c9-4d670a171644/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:00:51,984 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17d707b5-0aac-438b-b0c9-4d670a171644/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 08:00:52,011 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17d707b5-0aac-438b-b0c9-4d670a171644/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 08:00:52,028 INFO L130 BoogieDeclarations]: Found specification of procedure qdisc_lock [2022-11-19 08:00:52,028 INFO L138 BoogieDeclarations]: Found implementation of procedure qdisc_lock [2022-11-19 08:00:52,029 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2022-11-19 08:00:52,029 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_ppp_compress [2022-11-19 08:00:52,029 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_ppp_compress [2022-11-19 08:00:52,029 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_skb [2022-11-19 08:00:52,029 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_skb [2022-11-19 08:00:52,029 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_head_init [2022-11-19 08:00:52,030 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_head_init [2022-11-19 08:00:52,030 INFO L130 BoogieDeclarations]: Found specification of procedure dst_link_failure [2022-11-19 08:00:52,030 INFO L138 BoogieDeclarations]: Found implementation of procedure dst_link_failure [2022-11-19 08:00:52,030 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-19 08:00:52,030 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-19 08:00:52,030 INFO L130 BoogieDeclarations]: Found specification of procedure bpf_prog_destroy [2022-11-19 08:00:52,031 INFO L138 BoogieDeclarations]: Found implementation of procedure bpf_prog_destroy [2022-11-19 08:00:52,031 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2022-11-19 08:00:52,031 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2022-11-19 08:00:52,031 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-19 08:00:52,031 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-19 08:00:52,031 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_tty_open [2022-11-19 08:00:52,031 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_tty_open [2022-11-19 08:00:52,032 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_concap_dl_disconn_req [2022-11-19 08:00:52,032 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_concap_dl_disconn_req [2022-11-19 08:00:52,032 INFO L130 BoogieDeclarations]: Found specification of procedure skb_peek [2022-11-19 08:00:52,032 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_peek [2022-11-19 08:00:52,032 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_modem_info_mutex [2022-11-19 08:00:52,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_modem_info_mutex [2022-11-19 08:00:52,033 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_empty [2022-11-19 08:00:52,033 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_empty [2022-11-19 08:00:52,033 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-19 08:00:52,033 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-19 08:00:52,033 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_command [2022-11-19 08:00:52,033 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_command [2022-11-19 08:00:52,033 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_tty_senddown [2022-11-19 08:00:52,034 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_tty_senddown [2022-11-19 08:00:52,034 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2022-11-19 08:00:52,034 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2022-11-19 08:00:52,034 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_net_stat_callback [2022-11-19 08:00:52,035 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_net_stat_callback [2022-11-19 08:00:52,035 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-19 08:00:52,035 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-19 08:00:52,035 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_minor2drv [2022-11-19 08:00:52,036 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_minor2drv [2022-11-19 08:00:52,036 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_net_init [2022-11-19 08:00:52,036 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_net_init [2022-11-19 08:00:52,036 INFO L130 BoogieDeclarations]: Found specification of procedure put_tty_driver [2022-11-19 08:00:52,036 INFO L138 BoogieDeclarations]: Found implementation of procedure put_tty_driver [2022-11-19 08:00:52,037 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-19 08:00:52,037 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-19 08:00:52,038 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_unlock_driver [2022-11-19 08:00:52,038 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_unlock_driver [2022-11-19 08:00:52,038 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2022-11-19 08:00:52,039 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2022-11-19 08:00:52,039 INFO L130 BoogieDeclarations]: Found specification of procedure slhc_init [2022-11-19 08:00:52,039 INFO L138 BoogieDeclarations]: Found implementation of procedure slhc_init [2022-11-19 08:00:52,039 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_tty_modem_reset_regs [2022-11-19 08:00:52,039 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_tty_modem_reset_regs [2022-11-19 08:00:52,039 INFO L130 BoogieDeclarations]: Found specification of procedure simple_strtoul [2022-11-19 08:00:52,039 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_strtoul [2022-11-19 08:00:52,040 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_from_linear_data [2022-11-19 08:00:52,041 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_from_linear_data [2022-11-19 08:00:52,041 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_3 [2022-11-19 08:00:52,041 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_3 [2022-11-19 08:00:52,041 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-19 08:00:52,041 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headroom [2022-11-19 08:00:52,041 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headroom [2022-11-19 08:00:52,042 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_net_device_wake_queue [2022-11-19 08:00:52,042 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_net_device_wake_queue [2022-11-19 08:00:52,042 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait_event [2022-11-19 08:00:52,042 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait_event [2022-11-19 08:00:52,042 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-11-19 08:00:52,042 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-11-19 08:00:52,042 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_writebuf_skb_stub [2022-11-19 08:00:52,043 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_writebuf_skb_stub [2022-11-19 08:00:52,043 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_unexclusive_channel [2022-11-19 08:00:52,044 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_unexclusive_channel [2022-11-19 08:00:52,044 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_net_realrm [2022-11-19 08:00:52,044 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_net_realrm [2022-11-19 08:00:52,044 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-11-19 08:00:52,044 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-11-19 08:00:52,044 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-19 08:00:52,045 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_3 [2022-11-19 08:00:52,046 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_3 [2022-11-19 08:00:52,046 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 08:00:52,046 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-19 08:00:52,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-19 08:00:52,046 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-19 08:00:52,046 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-19 08:00:52,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-19 08:00:52,047 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-19 08:00:52,048 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-11-19 08:00:52,048 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-11-19 08:00:52,048 INFO L130 BoogieDeclarations]: Found specification of procedure iminor [2022-11-19 08:00:52,049 INFO L138 BoogieDeclarations]: Found implementation of procedure iminor [2022-11-19 08:00:52,049 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_net_add_to_bundle [2022-11-19 08:00:52,049 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_net_add_to_bundle [2022-11-19 08:00:52,049 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_tail [2022-11-19 08:00:52,049 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_tail [2022-11-19 08:00:52,049 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_tty_set_termios [2022-11-19 08:00:52,049 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_tty_set_termios [2022-11-19 08:00:52,050 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_tty_modem_result [2022-11-19 08:00:52,050 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_tty_modem_result [2022-11-19 08:00:52,050 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2022-11-19 08:00:52,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2022-11-19 08:00:52,051 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-19 08:00:52,051 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-19 08:00:52,051 INFO L130 BoogieDeclarations]: Found specification of procedure set_global_features [2022-11-19 08:00:52,051 INFO L138 BoogieDeclarations]: Found implementation of procedure set_global_features [2022-11-19 08:00:52,051 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2022-11-19 08:00:52,052 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2022-11-19 08:00:52,053 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 08:00:52,055 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 08:00:52,055 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_x25iface_disconn_ind [2022-11-19 08:00:52,055 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_x25iface_disconn_ind [2022-11-19 08:00:52,056 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-19 08:00:52,057 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-19 08:00:52,058 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_tty_write_room [2022-11-19 08:00:52,059 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_tty_write_room [2022-11-19 08:00:52,059 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_timer_ctrl [2022-11-19 08:00:52,059 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_timer_ctrl [2022-11-19 08:00:52,065 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-19 08:00:52,065 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_info_update [2022-11-19 08:00:52,065 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_info_update [2022-11-19 08:00:52,065 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_net_lp_busy [2022-11-19 08:00:52,065 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_net_lp_busy [2022-11-19 08:00:52,065 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2022-11-19 08:00:52,066 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2022-11-19 08:00:52,066 INFO L130 BoogieDeclarations]: Found specification of procedure file_inode [2022-11-19 08:00:52,066 INFO L138 BoogieDeclarations]: Found implementation of procedure file_inode [2022-11-19 08:00:52,066 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-11-19 08:00:52,066 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-11-19 08:00:52,066 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_x25iface_receive [2022-11-19 08:00:52,066 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_x25iface_receive [2022-11-19 08:00:52,066 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~X~int~TO~int [2022-11-19 08:00:52,067 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~X~int~TO~int [2022-11-19 08:00:52,067 INFO L130 BoogieDeclarations]: Found specification of procedure tty_flip_buffer_push [2022-11-19 08:00:52,067 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_flip_buffer_push [2022-11-19 08:00:52,067 INFO L130 BoogieDeclarations]: Found specification of procedure tty_insert_flip_char [2022-11-19 08:00:52,067 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_insert_flip_char [2022-11-19 08:00:52,067 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-19 08:00:52,067 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-19 08:00:52,068 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-19 08:00:52,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-19 08:00:52,068 INFO L130 BoogieDeclarations]: Found specification of procedure pdata_is_bad [2022-11-19 08:00:52,068 INFO L138 BoogieDeclarations]: Found implementation of procedure pdata_is_bad [2022-11-19 08:00:52,068 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_net_unbind_channel [2022-11-19 08:00:52,068 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_net_unbind_channel [2022-11-19 08:00:52,068 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-19 08:00:52,068 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-19 08:00:52,069 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_get_free_channel [2022-11-19 08:00:52,069 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_get_free_channel [2022-11-19 08:00:52,069 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2022-11-19 08:00:52,069 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2022-11-19 08:00:52,069 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-11-19 08:00:52,069 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-11-19 08:00:52,069 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_tty_modem_reset_vpar [2022-11-19 08:00:52,069 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_tty_modem_reset_vpar [2022-11-19 08:00:52,070 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 08:00:52,070 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_v110_open [2022-11-19 08:00:52,070 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_v110_open [2022-11-19 08:00:52,070 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-19 08:00:52,070 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-19 08:00:52,070 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_tty_tiocmget [2022-11-19 08:00:52,070 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_tty_tiocmget [2022-11-19 08:00:52,071 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_tty_handleDLEdown [2022-11-19 08:00:52,071 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_tty_handleDLEdown [2022-11-19 08:00:52,071 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-19 08:00:52,071 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2022-11-19 08:00:52,071 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2022-11-19 08:00:52,071 INFO L130 BoogieDeclarations]: Found specification of procedure set_arg [2022-11-19 08:00:52,071 INFO L138 BoogieDeclarations]: Found implementation of procedure set_arg [2022-11-19 08:00:52,071 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_queue_tail [2022-11-19 08:00:52,072 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_queue_tail [2022-11-19 08:00:52,072 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_close [2022-11-19 08:00:52,072 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_close [2022-11-19 08:00:52,072 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible [2022-11-19 08:00:52,072 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible [2022-11-19 08:00:52,072 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_net_dial [2022-11-19 08:00:52,072 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_net_dial [2022-11-19 08:00:52,072 INFO L130 BoogieDeclarations]: Found specification of procedure local_bh_disable [2022-11-19 08:00:52,073 INFO L138 BoogieDeclarations]: Found implementation of procedure local_bh_disable [2022-11-19 08:00:52,073 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_net_bind_channel [2022-11-19 08:00:52,073 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_net_bind_channel [2022-11-19 08:00:52,073 INFO L130 BoogieDeclarations]: Found specification of procedure strcat [2022-11-19 08:00:52,073 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-19 08:00:52,073 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-19 08:00:52,073 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2022-11-19 08:00:52,074 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2022-11-19 08:00:52,074 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memmove [2022-11-19 08:00:52,074 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memmove [2022-11-19 08:00:52,074 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-11-19 08:00:52,074 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-11-19 08:00:52,074 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_wildmat [2022-11-19 08:00:52,074 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_wildmat [2022-11-19 08:00:52,074 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_net_force_dial_lp [2022-11-19 08:00:52,075 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_net_force_dial_lp [2022-11-19 08:00:52,075 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-19 08:00:52,075 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-19 08:00:52,075 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_net_new [2022-11-19 08:00:52,075 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_net_new [2022-11-19 08:00:52,075 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_x25iface_connect_ind [2022-11-19 08:00:52,075 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_x25iface_connect_ind [2022-11-19 08:00:52,075 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_tty_flush_buffer [2022-11-19 08:00:52,076 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_tty_flush_buffer [2022-11-19 08:00:52,076 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_unlock_drivers [2022-11-19 08:00:52,076 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_unlock_drivers [2022-11-19 08:00:52,076 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2022-11-19 08:00:52,076 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2022-11-19 08:00:52,076 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_mtx_of_isdn_devt [2022-11-19 08:00:52,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_mtx_of_isdn_devt [2022-11-19 08:00:52,077 INFO L130 BoogieDeclarations]: Found specification of procedure skb_realloc_headroom [2022-11-19 08:00:52,077 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_realloc_headroom [2022-11-19 08:00:52,077 INFO L130 BoogieDeclarations]: Found specification of procedure slhc_free [2022-11-19 08:00:52,077 INFO L138 BoogieDeclarations]: Found implementation of procedure slhc_free [2022-11-19 08:00:52,077 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_ppp_mp_init [2022-11-19 08:00:52,077 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_ppp_mp_init [2022-11-19 08:00:52,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 08:00:52,077 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_all_eaz [2022-11-19 08:00:52,078 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_all_eaz [2022-11-19 08:00:52,078 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2022-11-19 08:00:52,078 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2022-11-19 08:00:52,078 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-19 08:00:52,078 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-19 08:00:52,078 INFO L130 BoogieDeclarations]: Found specification of procedure illegal_state_warn [2022-11-19 08:00:52,078 INFO L138 BoogieDeclarations]: Found implementation of procedure illegal_state_warn [2022-11-19 08:00:52,078 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_ppp_skb_push [2022-11-19 08:00:52,079 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_ppp_skb_push [2022-11-19 08:00:52,079 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_audio_dtmf_init [2022-11-19 08:00:52,079 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_audio_dtmf_init [2022-11-19 08:00:52,079 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_tty_modem_ncarrier [2022-11-19 08:00:52,079 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_tty_modem_ncarrier [2022-11-19 08:00:52,079 INFO L130 BoogieDeclarations]: Found specification of procedure tty_wakeup [2022-11-19 08:00:52,079 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_wakeup [2022-11-19 08:00:52,079 INFO L130 BoogieDeclarations]: Found specification of procedure tty_wait_until_sent [2022-11-19 08:00:52,080 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_wait_until_sent [2022-11-19 08:00:52,080 INFO L130 BoogieDeclarations]: Found specification of procedure current_thread_info [2022-11-19 08:00:52,080 INFO L138 BoogieDeclarations]: Found implementation of procedure current_thread_info [2022-11-19 08:00:52,081 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2022-11-19 08:00:52,085 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2022-11-19 08:00:52,085 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-11-19 08:00:52,085 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-11-19 08:00:52,085 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_audio_put_dle_code [2022-11-19 08:00:52,085 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_audio_put_dle_code [2022-11-19 08:00:52,085 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_net_ioctl [2022-11-19 08:00:52,085 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_net_ioctl [2022-11-19 08:00:52,086 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_writebuf_stub [2022-11-19 08:00:52,086 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_writebuf_stub [2022-11-19 08:00:52,087 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_net_dial_req [2022-11-19 08:00:52,088 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_net_dial_req [2022-11-19 08:00:52,088 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_net_write_super [2022-11-19 08:00:52,088 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_net_write_super [2022-11-19 08:00:52,088 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_tty_cmd_ATA [2022-11-19 08:00:52,088 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_tty_cmd_ATA [2022-11-19 08:00:52,088 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_mac_header [2022-11-19 08:00:52,089 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_mac_header [2022-11-19 08:00:52,089 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-11-19 08:00:52,089 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-11-19 08:00:52,089 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-19 08:00:52,089 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-19 08:00:52,089 INFO L130 BoogieDeclarations]: Found specification of procedure tty_check_change [2022-11-19 08:00:52,089 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_check_change [2022-11-19 08:00:52,089 INFO L130 BoogieDeclarations]: Found specification of procedure tty_buffer_request_room [2022-11-19 08:00:52,090 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_buffer_request_room [2022-11-19 08:00:52,090 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-19 08:00:52,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-19 08:00:52,090 INFO L130 BoogieDeclarations]: Found specification of procedure char_buf_ptr [2022-11-19 08:00:52,090 INFO L138 BoogieDeclarations]: Found implementation of procedure char_buf_ptr [2022-11-19 08:00:52,090 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_status_callback [2022-11-19 08:00:52,090 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_status_callback [2022-11-19 08:00:52,090 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_1 [2022-11-19 08:00:52,091 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_1 [2022-11-19 08:00:52,091 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_net_hangup [2022-11-19 08:00:52,091 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_net_hangup [2022-11-19 08:00:52,091 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_net_lp_disconnected [2022-11-19 08:00:52,091 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_net_lp_disconnected [2022-11-19 08:00:52,091 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_x25iface_proto_del [2022-11-19 08:00:52,091 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_x25iface_proto_del [2022-11-19 08:00:52,091 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-19 08:00:52,092 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-19 08:00:52,092 INFO L130 BoogieDeclarations]: Found specification of procedure get_filter [2022-11-19 08:00:52,092 INFO L138 BoogieDeclarations]: Found implementation of procedure get_filter [2022-11-19 08:00:52,092 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_net_device_busy [2022-11-19 08:00:52,092 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_net_device_busy [2022-11-19 08:00:52,092 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_lock_drivers [2022-11-19 08:00:52,092 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_lock_drivers [2022-11-19 08:00:52,092 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_net_close [2022-11-19 08:00:52,092 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_net_close [2022-11-19 08:00:52,093 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_getnum [2022-11-19 08:00:52,093 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_getnum [2022-11-19 08:00:52,093 INFO L130 BoogieDeclarations]: Found specification of procedure bpf_prog_create [2022-11-19 08:00:52,093 INFO L138 BoogieDeclarations]: Found implementation of procedure bpf_prog_create [2022-11-19 08:00:52,093 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2022-11-19 08:00:52,093 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2022-11-19 08:00:52,093 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_poll [2022-11-19 08:00:52,093 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_poll [2022-11-19 08:00:52,094 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-19 08:00:52,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-19 08:00:52,094 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_tty_change_speed [2022-11-19 08:00:52,094 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_tty_change_speed [2022-11-19 08:00:52,094 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_tty_carrier_raised [2022-11-19 08:00:52,094 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_tty_carrier_raised [2022-11-19 08:00:52,094 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 08:00:52,094 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_audio_ulaw2alaw [2022-11-19 08:00:52,095 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_audio_ulaw2alaw [2022-11-19 08:00:52,095 INFO L130 BoogieDeclarations]: Found specification of procedure __chk_range_not_ok [2022-11-19 08:00:52,095 INFO L138 BoogieDeclarations]: Found implementation of procedure __chk_range_not_ok [2022-11-19 08:00:52,095 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2022-11-19 08:00:52,095 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2022-11-19 08:00:52,095 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_chrdev_150 [2022-11-19 08:00:52,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_chrdev_150 [2022-11-19 08:00:52,095 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-19 08:00:52,096 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-19 08:00:52,096 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_net_device_stop_queue [2022-11-19 08:00:52,096 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_net_device_stop_queue [2022-11-19 08:00:52,096 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mtx_of_isdn_devt [2022-11-19 08:00:52,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mtx_of_isdn_devt [2022-11-19 08:00:52,096 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_tty_shutdown [2022-11-19 08:00:52,096 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_tty_shutdown [2022-11-19 08:00:52,096 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2022-11-19 08:00:52,097 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2022-11-19 08:00:52,097 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-19 08:00:52,097 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_tty_get_msnstr [2022-11-19 08:00:52,097 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_tty_get_msnstr [2022-11-19 08:00:52,097 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_net_reset [2022-11-19 08:00:52,097 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_net_reset [2022-11-19 08:00:52,097 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-19 08:00:52,097 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-19 08:00:52,098 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_ppp_frame_log [2022-11-19 08:00:52,098 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_ppp_frame_log [2022-11-19 08:00:52,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-19 08:00:52,098 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_tty_flush_chars [2022-11-19 08:00:52,098 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_tty_flush_chars [2022-11-19 08:00:52,098 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_net_ciscohdlck_alloc_skb [2022-11-19 08:00:52,098 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_net_ciscohdlck_alloc_skb [2022-11-19 08:00:52,098 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_map_eaz2msn [2022-11-19 08:00:52,099 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_map_eaz2msn [2022-11-19 08:00:52,099 INFO L130 BoogieDeclarations]: Found specification of procedure FlipBits [2022-11-19 08:00:52,099 INFO L138 BoogieDeclarations]: Found implementation of procedure FlipBits [2022-11-19 08:00:52,099 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_ppp_free [2022-11-19 08:00:52,099 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_ppp_free [2022-11-19 08:00:52,099 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_audio_alaw2ulaw [2022-11-19 08:00:52,099 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_audio_alaw2ulaw [2022-11-19 08:00:52,099 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_net_tx_timeout [2022-11-19 08:00:52,100 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_net_tx_timeout [2022-11-19 08:00:52,100 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-19 08:00:52,100 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-19 08:00:52,100 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_star [2022-11-19 08:00:52,100 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_star [2022-11-19 08:00:52,100 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_destroy [2022-11-19 08:00:52,100 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_destroy [2022-11-19 08:00:52,100 INFO L130 BoogieDeclarations]: Found specification of procedure skb_trim [2022-11-19 08:00:52,101 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_trim [2022-11-19 08:00:52,101 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_audio_adpcm_init [2022-11-19 08:00:52,101 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_audio_adpcm_init [2022-11-19 08:00:52,101 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_open [2022-11-19 08:00:52,101 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_open [2022-11-19 08:00:52,101 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_x25iface_proto_restart [2022-11-19 08:00:52,101 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_x25iface_proto_restart [2022-11-19 08:00:52,101 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2022-11-19 08:00:52,102 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2022-11-19 08:00:52,102 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_purge [2022-11-19 08:00:52,102 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_purge [2022-11-19 08:00:52,102 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_tty_exit [2022-11-19 08:00:52,102 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_tty_exit [2022-11-19 08:00:52,102 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_net_findif [2022-11-19 08:00:52,102 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_net_findif [2022-11-19 08:00:52,102 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_net_writebuf_skb [2022-11-19 08:00:52,103 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_net_writebuf_skb [2022-11-19 08:00:52,103 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-19 08:00:52,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-19 08:00:52,103 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_3 [2022-11-19 08:00:52,103 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_3 [2022-11-19 08:00:52,103 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_tty_tiocmset [2022-11-19 08:00:52,103 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_tty_tiocmset [2022-11-19 08:00:52,103 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_tty_chars_in_buffer [2022-11-19 08:00:52,104 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_tty_chars_in_buffer [2022-11-19 08:00:52,105 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-19 08:00:52,105 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-19 08:00:52,105 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_tty_cleanup_xmit [2022-11-19 08:00:52,105 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_tty_cleanup_xmit [2022-11-19 08:00:52,105 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_tty_throttle [2022-11-19 08:00:52,105 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_tty_throttle [2022-11-19 08:00:52,105 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_modem_info_mutex [2022-11-19 08:00:52,105 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_modem_info_mutex [2022-11-19 08:00:52,106 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_tty_on_hook [2022-11-19 08:00:52,106 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_tty_on_hook [2022-11-19 08:00:52,106 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_tty_unthrottle [2022-11-19 08:00:52,106 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_tty_unthrottle [2022-11-19 08:00:52,106 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-11-19 08:00:52,106 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-11-19 08:00:52,106 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_tty_reset_profile [2022-11-19 08:00:52,106 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_tty_reset_profile [2022-11-19 08:00:52,107 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_header_cache_update [2022-11-19 08:00:52,107 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_header_cache_update [2022-11-19 08:00:52,107 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2022-11-19 08:00:52,107 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2022-11-19 08:00:52,107 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_ppp_mp_free_skb [2022-11-19 08:00:52,107 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_ppp_mp_free_skb [2022-11-19 08:00:52,107 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2022-11-19 08:00:52,107 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2022-11-19 08:00:52,108 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2022-11-19 08:00:52,108 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2022-11-19 08:00:52,108 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_calc_usage [2022-11-19 08:00:52,108 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_calc_usage [2022-11-19 08:00:52,108 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2022-11-19 08:00:52,108 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2022-11-19 08:00:52,108 INFO L130 BoogieDeclarations]: Found specification of procedure skb_dequeue [2022-11-19 08:00:52,108 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_dequeue [2022-11-19 08:00:52,109 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-19 08:00:52,109 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-19 08:00:52,109 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-19 08:00:52,109 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_tty_stat_callback [2022-11-19 08:00:52,109 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_tty_stat_callback [2022-11-19 08:00:52,109 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_add_channels [2022-11-19 08:00:52,109 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_add_channels [2022-11-19 08:00:52,109 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_free_channel [2022-11-19 08:00:52,110 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_free_channel [2022-11-19 08:00:52,110 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_v110_sync [2022-11-19 08:00:52,110 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_v110_sync [2022-11-19 08:00:52,110 INFO L130 BoogieDeclarations]: Found specification of procedure get_arg [2022-11-19 08:00:52,110 INFO L138 BoogieDeclarations]: Found implementation of procedure get_arg [2022-11-19 08:00:52,110 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_net_device_started [2022-11-19 08:00:52,110 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_net_device_started [2022-11-19 08:00:52,110 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_msncmp [2022-11-19 08:00:52,110 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_msncmp [2022-11-19 08:00:52,111 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-19 08:00:52,111 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-19 08:00:52,111 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_v110_stat_callback [2022-11-19 08:00:52,111 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_v110_stat_callback [2022-11-19 08:00:52,111 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-19 08:00:52,111 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-19 08:00:52,111 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_tty_install [2022-11-19 08:00:52,111 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_tty_install [2022-11-19 08:00:52,112 INFO L130 BoogieDeclarations]: Found specification of procedure poll_wait [2022-11-19 08:00:52,112 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_wait [2022-11-19 08:00:52,112 INFO L130 BoogieDeclarations]: Found specification of procedure x25_type_trans [2022-11-19 08:00:52,112 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_type_trans [2022-11-19 08:00:52,112 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-19 08:00:52,112 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-19 08:00:52,112 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_audio_tlookup [2022-11-19 08:00:52,112 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_audio_tlookup [2022-11-19 08:00:52,113 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_net_swap_usage [2022-11-19 08:00:52,113 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_net_swap_usage [2022-11-19 08:00:52,113 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_concap_dl_data_req [2022-11-19 08:00:52,113 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_concap_dl_data_req [2022-11-19 08:00:52,113 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_minor2chan [2022-11-19 08:00:52,113 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_minor2chan [2022-11-19 08:00:52,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-19 08:00:52,113 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_v110_close [2022-11-19 08:00:52,114 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_v110_close [2022-11-19 08:00:52,114 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2022-11-19 08:00:52,114 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2022-11-19 08:00:52,114 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_tty_paranoia_check [2022-11-19 08:00:52,114 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_tty_paranoia_check [2022-11-19 08:00:52,114 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-11-19 08:00:52,114 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-11-19 08:00:52,114 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_x25iface_xmit [2022-11-19 08:00:52,115 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_x25iface_xmit [2022-11-19 08:00:52,115 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~X~$Pointer$~X~int~X~$Pointer$~TO~VOID [2022-11-19 08:00:52,115 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~X~$Pointer$~X~int~X~$Pointer$~TO~VOID [2022-11-19 08:00:52,115 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_tty_find_icall [2022-11-19 08:00:52,115 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_tty_find_icall [2022-11-19 08:00:52,115 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-19 08:00:52,115 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-19 08:00:52,115 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_audio_linear2ulaw [2022-11-19 08:00:52,116 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_audio_linear2ulaw [2022-11-19 08:00:52,116 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~X~int~X~$Pointer$~TO~int [2022-11-19 08:00:52,116 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~X~int~X~$Pointer$~TO~int [2022-11-19 08:00:52,116 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_tty_tint [2022-11-19 08:00:52,116 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_tty_tint [2022-11-19 08:00:52,116 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2022-11-19 08:00:52,116 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2022-11-19 08:00:52,116 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-19 08:00:52,117 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-19 08:00:52,117 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_tty_hangup [2022-11-19 08:00:52,117 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_tty_hangup [2022-11-19 08:00:52,117 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_concap_dl_connect_req [2022-11-19 08:00:52,117 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_concap_dl_connect_req [2022-11-19 08:00:52,117 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2022-11-19 08:00:52,117 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2022-11-19 08:00:52,117 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_tty_at_cout [2022-11-19 08:00:52,118 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_tty_at_cout [2022-11-19 08:00:52,121 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_ppp_ccp_xmit_reset [2022-11-19 08:00:52,121 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_ppp_ccp_xmit_reset [2022-11-19 08:00:52,122 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-11-19 08:00:52,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-11-19 08:00:52,122 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-11-19 08:00:52,122 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-11-19 08:00:52,122 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-11-19 08:00:52,122 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-11-19 08:00:52,122 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_write [2022-11-19 08:00:52,123 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_write [2022-11-19 08:00:52,123 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_tty_ioctl [2022-11-19 08:00:52,123 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_tty_ioctl [2022-11-19 08:00:52,123 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_net_open [2022-11-19 08:00:52,123 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_net_open [2022-11-19 08:00:52,123 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_isdn_mutex [2022-11-19 08:00:52,123 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_isdn_mutex [2022-11-19 08:00:52,123 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_ppp_ccp_reset_free_state [2022-11-19 08:00:52,124 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_ppp_ccp_reset_free_state [2022-11-19 08:00:52,124 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_isdn_mutex [2022-11-19 08:00:52,124 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_isdn_mutex [2022-11-19 08:00:52,124 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_net_unreachable [2022-11-19 08:00:52,124 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_net_unreachable [2022-11-19 08:00:52,124 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_getrev [2022-11-19 08:00:52,124 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_getrev [2022-11-19 08:00:52,124 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-11-19 08:00:52,125 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-11-19 08:00:52,125 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_net_swapbind [2022-11-19 08:00:52,125 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_net_swapbind [2022-11-19 08:00:52,125 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_x25iface_proto_new [2022-11-19 08:00:52,125 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_x25iface_proto_new [2022-11-19 08:00:52,125 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_ppp_bind [2022-11-19 08:00:52,125 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_ppp_bind [2022-11-19 08:00:52,126 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_net_rm_from_bundle [2022-11-19 08:00:52,126 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_net_rm_from_bundle [2022-11-19 08:00:52,126 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-19 08:00:52,126 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-19 08:00:52,126 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_net_get_stats [2022-11-19 08:00:52,126 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_net_get_stats [2022-11-19 08:00:52,126 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-19 08:00:52,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-19 08:00:52,127 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_net_softint [2022-11-19 08:00:52,127 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_net_softint [2022-11-19 08:00:52,127 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_x25iface_proto_close [2022-11-19 08:00:52,127 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_x25iface_proto_close [2022-11-19 08:00:52,127 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_tty_check_ats [2022-11-19 08:00:52,127 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_tty_check_ats [2022-11-19 08:00:52,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 08:00:52,127 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_tty_fax_modem_result [2022-11-19 08:00:52,128 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_tty_fax_modem_result [2022-11-19 08:00:52,128 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2022-11-19 08:00:52,128 INFO L130 BoogieDeclarations]: Found specification of procedure tty_unregister_driver [2022-11-19 08:00:52,128 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_unregister_driver [2022-11-19 08:00:52,128 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_tty_modem_hup [2022-11-19 08:00:52,128 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_tty_modem_hup [2022-11-19 08:00:52,128 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_dc2minor [2022-11-19 08:00:52,128 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_dc2minor [2022-11-19 08:00:54,529 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 08:00:54,534 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 08:00:54,930 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-19 08:02:29,915 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 08:02:40,259 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 08:02:40,259 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-19 08:02:40,275 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:02:40 BoogieIcfgContainer [2022-11-19 08:02:40,275 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 08:02:40,277 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 08:02:40,278 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 08:02:40,282 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 08:02:40,282 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:00:36" (1/3) ... [2022-11-19 08:02:40,283 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d69b899 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:02:40, skipping insertion in model container [2022-11-19 08:02:40,283 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:49" (2/3) ... [2022-11-19 08:02:40,284 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d69b899 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:02:40, skipping insertion in model container [2022-11-19 08:02:40,284 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:02:40" (3/3) ... [2022-11-19 08:02:40,285 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--isdn--i4l--isdn.ko-entry_point.cil.out.i [2022-11-19 08:02:40,314 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 08:02:40,314 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 08:02:40,495 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 08:02:40,500 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;@24890009, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 08:02:40,500 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 08:02:40,521 INFO L276 IsEmpty]: Start isEmpty. Operand has 6000 states, 3954 states have (on average 1.4385432473444613) internal successors, (5688), 4182 states have internal predecessors, (5688), 1787 states have call successors, (1787), 259 states have call predecessors, (1787), 258 states have return successors, (1778), 1697 states have call predecessors, (1778), 1778 states have call successors, (1778) [2022-11-19 08:02:40,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-11-19 08:02:40,546 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:02:40,547 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:02:40,547 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:02:40,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:02:40,555 INFO L85 PathProgramCache]: Analyzing trace with hash 1025779632, now seen corresponding path program 1 times [2022-11-19 08:02:40,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:02:40,566 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269115348] [2022-11-19 08:02:40,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:02:40,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:02:41,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:02:42,529 INFO L134 CoverageAnalysis]: Checked inductivity of 205 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 205 trivial. 0 not checked. [2022-11-19 08:02:42,529 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:02:42,534 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269115348] [2022-11-19 08:02:42,535 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [269115348] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:02:42,535 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:02:42,535 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:02:42,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444394121] [2022-11-19 08:02:42,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:02:42,543 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:02:42,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:02:42,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:02:42,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:02:42,598 INFO L87 Difference]: Start difference. First operand has 6000 states, 3954 states have (on average 1.4385432473444613) internal successors, (5688), 4182 states have internal predecessors, (5688), 1787 states have call successors, (1787), 259 states have call predecessors, (1787), 258 states have return successors, (1778), 1697 states have call predecessors, (1778), 1778 states have call successors, (1778) Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2022-11-19 08:02:44,843 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:02:48,083 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:02:52,526 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:02:56,757 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:03:00,543 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:03:04,166 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:03:06,265 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:03:08,809 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:03:13,752 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:03:14,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:03:14,552 INFO L93 Difference]: Finished difference Result 16781 states and 26511 transitions. [2022-11-19 08:03:14,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:03:14,556 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 138 [2022-11-19 08:03:14,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:03:14,671 INFO L225 Difference]: With dead ends: 16781 [2022-11-19 08:03:14,671 INFO L226 Difference]: Without dead ends: 10781 [2022-11-19 08:03:14,754 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 08:03:14,763 INFO L413 NwaCegarLoop]: 9869 mSDtfsCounter, 7343 mSDsluCounter, 8410 mSDsCounter, 0 mSdLazyCounter, 1579 mSolverCounterSat, 4 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7358 SdHoareTripleChecker+Valid, 18279 SdHoareTripleChecker+Invalid, 1592 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1579 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.2s IncrementalHoareTripleChecker+Time [2022-11-19 08:03:14,764 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7358 Valid, 18279 Invalid, 1592 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4 Valid, 1579 Invalid, 9 Unknown, 0 Unchecked, 31.2s Time] [2022-11-19 08:03:14,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10781 states. [2022-11-19 08:03:15,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10781 to 10754. [2022-11-19 08:03:15,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10754 states, 7076 states have (on average 1.433295647258338) internal successors, (10142), 7493 states have internal predecessors, (10142), 3188 states have call successors, (3188), 490 states have call predecessors, (3188), 489 states have return successors, (3188), 3011 states have call predecessors, (3188), 3176 states have call successors, (3188) [2022-11-19 08:03:15,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10754 states to 10754 states and 16518 transitions. [2022-11-19 08:03:15,927 INFO L78 Accepts]: Start accepts. Automaton has 10754 states and 16518 transitions. Word has length 138 [2022-11-19 08:03:15,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:03:15,931 INFO L495 AbstractCegarLoop]: Abstraction has 10754 states and 16518 transitions. [2022-11-19 08:03:15,932 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2022-11-19 08:03:15,932 INFO L276 IsEmpty]: Start isEmpty. Operand 10754 states and 16518 transitions. [2022-11-19 08:03:15,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-11-19 08:03:15,944 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:03:15,944 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:03:15,945 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 08:03:15,945 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:03:15,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:03:15,948 INFO L85 PathProgramCache]: Analyzing trace with hash 2098965903, now seen corresponding path program 1 times [2022-11-19 08:03:15,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:03:15,949 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226142652] [2022-11-19 08:03:15,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:03:15,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:03:16,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:03:17,145 INFO L134 CoverageAnalysis]: Checked inductivity of 205 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 205 trivial. 0 not checked. [2022-11-19 08:03:17,145 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:03:17,146 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226142652] [2022-11-19 08:03:17,146 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [226142652] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:03:17,146 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:03:17,146 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:03:17,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733216496] [2022-11-19 08:03:17,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:03:17,150 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:03:17,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:03:17,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:03:17,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:03:17,151 INFO L87 Difference]: Start difference. First operand 10754 states and 16518 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-19 08:03:19,348 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:03:22,628 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:03:27,039 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:03:29,684 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:03:32,686 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:03:34,192 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:03:37,942 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:03:41,057 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:03:43,333 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:03:50,447 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:03:51,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:03:51,391 INFO L93 Difference]: Finished difference Result 21420 states and 32920 transitions. [2022-11-19 08:03:51,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:03:51,396 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 144 [2022-11-19 08:03:51,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:03:51,587 INFO L225 Difference]: With dead ends: 21420 [2022-11-19 08:03:51,587 INFO L226 Difference]: Without dead ends: 21417 [2022-11-19 08:03:51,607 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 08:03:51,608 INFO L413 NwaCegarLoop]: 10215 mSDtfsCounter, 9066 mSDsluCounter, 8379 mSDsCounter, 0 mSdLazyCounter, 1555 mSolverCounterSat, 1 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9087 SdHoareTripleChecker+Valid, 18594 SdHoareTripleChecker+Invalid, 1565 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1555 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 33.5s IncrementalHoareTripleChecker+Time [2022-11-19 08:03:51,608 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9087 Valid, 18594 Invalid, 1565 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1555 Invalid, 9 Unknown, 0 Unchecked, 33.5s Time] [2022-11-19 08:03:51,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21417 states. [2022-11-19 08:03:52,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21417 to 21402. [2022-11-19 08:03:52,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21402 states, 14094 states have (on average 1.4339435220661274) internal successors, (20210), 14920 states have internal predecessors, (20210), 6331 states have call successors, (6331), 977 states have call predecessors, (6331), 976 states have return successors, (6361), 5985 states have call predecessors, (6361), 6319 states have call successors, (6361) [2022-11-19 08:03:53,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21402 states to 21402 states and 32902 transitions. [2022-11-19 08:03:53,354 INFO L78 Accepts]: Start accepts. Automaton has 21402 states and 32902 transitions. Word has length 144 [2022-11-19 08:03:53,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:03:53,357 INFO L495 AbstractCegarLoop]: Abstraction has 21402 states and 32902 transitions. [2022-11-19 08:03:53,357 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-19 08:03:53,357 INFO L276 IsEmpty]: Start isEmpty. Operand 21402 states and 32902 transitions. [2022-11-19 08:03:53,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-11-19 08:03:53,362 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:03:53,362 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:03:53,362 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 08:03:53,363 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:03:53,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:03:53,366 INFO L85 PathProgramCache]: Analyzing trace with hash 640594889, now seen corresponding path program 1 times [2022-11-19 08:03:53,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:03:53,366 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287069380] [2022-11-19 08:03:53,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:03:53,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:03:53,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:03:54,642 INFO L134 CoverageAnalysis]: Checked inductivity of 205 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 205 trivial. 0 not checked. [2022-11-19 08:03:54,642 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:03:54,642 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287069380] [2022-11-19 08:03:54,643 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [287069380] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:03:54,643 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:03:54,643 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:03:54,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449890753] [2022-11-19 08:03:54,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:03:54,644 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:03:54,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:03:54,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:03:54,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:03:54,645 INFO L87 Difference]: Start difference. First operand 21402 states and 32902 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-19 08:03:56,595 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:04:00,256 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:04:04,668 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:04:08,442 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:04:10,494 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:04:11,992 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:04:15,437 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:04:17,561 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:04:19,647 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:04:22,692 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:04:26,886 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:04:27,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:04:27,827 INFO L93 Difference]: Finished difference Result 35214 states and 53759 transitions. [2022-11-19 08:04:27,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:04:27,831 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 145 [2022-11-19 08:04:27,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:04:28,039 INFO L225 Difference]: With dead ends: 35214 [2022-11-19 08:04:28,039 INFO L226 Difference]: Without dead ends: 35210 [2022-11-19 08:04:28,072 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 08:04:28,075 INFO L413 NwaCegarLoop]: 9925 mSDtfsCounter, 7298 mSDsluCounter, 8352 mSDsCounter, 0 mSdLazyCounter, 1556 mSolverCounterSat, 4 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7306 SdHoareTripleChecker+Valid, 18277 SdHoareTripleChecker+Invalid, 1568 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1556 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.3s IncrementalHoareTripleChecker+Time [2022-11-19 08:04:28,076 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7306 Valid, 18277 Invalid, 1568 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4 Valid, 1556 Invalid, 8 Unknown, 0 Unchecked, 32.3s Time] [2022-11-19 08:04:28,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35210 states. [2022-11-19 08:04:29,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35210 to 35201. [2022-11-19 08:04:29,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35201 states, 23072 states have (on average 1.4282246879334257) internal successors, (32952), 24487 states have internal predecessors, (32952), 10359 states have call successors, (10359), 1778 states have call predecessors, (10359), 1769 states have return successors, (10431), 9756 states have call predecessors, (10431), 10347 states have call successors, (10431) [2022-11-19 08:04:30,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35201 states to 35201 states and 53742 transitions. [2022-11-19 08:04:30,097 INFO L78 Accepts]: Start accepts. Automaton has 35201 states and 53742 transitions. Word has length 145 [2022-11-19 08:04:30,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:04:30,097 INFO L495 AbstractCegarLoop]: Abstraction has 35201 states and 53742 transitions. [2022-11-19 08:04:30,098 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-19 08:04:30,098 INFO L276 IsEmpty]: Start isEmpty. Operand 35201 states and 53742 transitions. [2022-11-19 08:04:30,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-11-19 08:04:30,107 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:04:30,107 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:04:30,107 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-19 08:04:30,110 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:04:30,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:04:30,111 INFO L85 PathProgramCache]: Analyzing trace with hash -1619228718, now seen corresponding path program 1 times [2022-11-19 08:04:30,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:04:30,112 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765415998] [2022-11-19 08:04:30,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:04:30,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:04:30,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:04:31,351 INFO L134 CoverageAnalysis]: Checked inductivity of 205 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 205 trivial. 0 not checked. [2022-11-19 08:04:31,351 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:04:31,351 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765415998] [2022-11-19 08:04:31,351 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [765415998] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:04:31,351 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:04:31,352 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:04:31,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627213937] [2022-11-19 08:04:31,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:04:31,352 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:04:31,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:04:31,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:04:31,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:04:31,353 INFO L87 Difference]: Start difference. First operand 35201 states and 53742 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-19 08:04:33,555 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:04:36,820 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:04:41,174 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:04:43,760 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:04:46,877 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:04:48,948 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:04:52,595 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:04:54,610 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:04:56,837 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:04:58,896 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:05:04,075 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:05:08,030 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:05:08,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:05:08,916 INFO L93 Difference]: Finished difference Result 35298 states and 53844 transitions. [2022-11-19 08:05:08,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:05:08,919 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 146 [2022-11-19 08:05:08,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:05:09,119 INFO L225 Difference]: With dead ends: 35298 [2022-11-19 08:05:09,119 INFO L226 Difference]: Without dead ends: 35295 [2022-11-19 08:05:09,145 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 08:05:09,149 INFO L413 NwaCegarLoop]: 10219 mSDtfsCounter, 9046 mSDsluCounter, 8385 mSDsCounter, 0 mSdLazyCounter, 1556 mSolverCounterSat, 1 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9069 SdHoareTripleChecker+Valid, 18604 SdHoareTripleChecker+Invalid, 1568 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1556 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36.6s IncrementalHoareTripleChecker+Time [2022-11-19 08:05:09,150 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9069 Valid, 18604 Invalid, 1568 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1556 Invalid, 11 Unknown, 0 Unchecked, 36.6s Time] [2022-11-19 08:05:09,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35295 states. [2022-11-19 08:05:11,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35295 to 35277. [2022-11-19 08:05:11,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35277 states, 23114 states have (on average 1.4277926797611837) internal successors, (33002), 24533 states have internal predecessors, (33002), 10374 states have call successors, (10374), 1797 states have call predecessors, (10374), 1788 states have return successors, (10446), 9769 states have call predecessors, (10446), 10362 states have call successors, (10446) [2022-11-19 08:05:11,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35277 states to 35277 states and 53822 transitions. [2022-11-19 08:05:11,304 INFO L78 Accepts]: Start accepts. Automaton has 35277 states and 53822 transitions. Word has length 146 [2022-11-19 08:05:11,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:05:11,305 INFO L495 AbstractCegarLoop]: Abstraction has 35277 states and 53822 transitions. [2022-11-19 08:05:11,305 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-19 08:05:11,306 INFO L276 IsEmpty]: Start isEmpty. Operand 35277 states and 53822 transitions. [2022-11-19 08:05:11,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-11-19 08:05:11,309 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:05:11,310 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:05:11,310 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-19 08:05:11,310 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:05:11,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:05:11,311 INFO L85 PathProgramCache]: Analyzing trace with hash 1340688364, now seen corresponding path program 1 times [2022-11-19 08:05:11,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:05:11,311 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049250536] [2022-11-19 08:05:11,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:05:11,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:05:11,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:05:12,564 INFO L134 CoverageAnalysis]: Checked inductivity of 205 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 205 trivial. 0 not checked. [2022-11-19 08:05:12,564 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:05:12,564 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1049250536] [2022-11-19 08:05:12,564 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1049250536] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:05:12,564 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:05:12,564 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:05:12,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876847519] [2022-11-19 08:05:12,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:05:12,565 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:05:12,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:05:12,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:05:12,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:05:12,566 INFO L87 Difference]: Start difference. First operand 35277 states and 53822 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-19 08:05:14,896 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.33s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:05:18,165 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:05:22,750 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:05:24,155 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:05:28,146 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:05:31,362 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:05:35,274 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:05:37,406 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:05:39,468 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:05:47,067 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:05:48,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:05:48,440 INFO L93 Difference]: Finished difference Result 105560 states and 164654 transitions. [2022-11-19 08:05:48,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:05:48,443 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 147 [2022-11-19 08:05:48,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:05:49,355 INFO L225 Difference]: With dead ends: 105560 [2022-11-19 08:05:49,356 INFO L226 Difference]: Without dead ends: 70306 [2022-11-19 08:05:49,722 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 08:05:49,723 INFO L413 NwaCegarLoop]: 10661 mSDtfsCounter, 9305 mSDsluCounter, 8642 mSDsCounter, 0 mSdLazyCounter, 1580 mSolverCounterSat, 5 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9314 SdHoareTripleChecker+Valid, 19303 SdHoareTripleChecker+Invalid, 1594 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1580 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 33.5s IncrementalHoareTripleChecker+Time [2022-11-19 08:05:49,723 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9314 Valid, 19303 Invalid, 1594 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5 Valid, 1580 Invalid, 9 Unknown, 0 Unchecked, 33.5s Time] [2022-11-19 08:05:49,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70306 states. [2022-11-19 08:05:52,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70306 to 70268. [2022-11-19 08:05:52,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70268 states, 46072 states have (on average 1.428221045320368) internal successors, (65801), 48896 states have internal predecessors, (65801), 20643 states have call successors, (20643), 3578 states have call predecessors, (20643), 3552 states have return successors, (24339), 19426 states have call predecessors, (24339), 20630 states have call successors, (24339) [2022-11-19 08:05:53,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70268 states to 70268 states and 110783 transitions. [2022-11-19 08:05:53,920 INFO L78 Accepts]: Start accepts. Automaton has 70268 states and 110783 transitions. Word has length 147 [2022-11-19 08:05:53,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:05:53,921 INFO L495 AbstractCegarLoop]: Abstraction has 70268 states and 110783 transitions. [2022-11-19 08:05:53,921 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-19 08:05:53,921 INFO L276 IsEmpty]: Start isEmpty. Operand 70268 states and 110783 transitions. [2022-11-19 08:05:53,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-11-19 08:05:53,925 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:05:53,925 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:05:53,926 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-19 08:05:53,926 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:05:53,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:05:53,926 INFO L85 PathProgramCache]: Analyzing trace with hash -1391157739, now seen corresponding path program 1 times [2022-11-19 08:05:53,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:05:53,927 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907810260] [2022-11-19 08:05:53,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:05:53,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:05:54,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:05:55,133 INFO L134 CoverageAnalysis]: Checked inductivity of 205 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 205 trivial. 0 not checked. [2022-11-19 08:05:55,134 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:05:55,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1907810260] [2022-11-19 08:05:55,134 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1907810260] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:05:55,134 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:05:55,134 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:05:55,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765486148] [2022-11-19 08:05:55,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:05:55,135 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:05:55,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:05:55,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:05:55,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:05:55,137 INFO L87 Difference]: Start difference. First operand 70268 states and 110783 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-19 08:05:57,375 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:06:00,769 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:06:03,019 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:06:05,909 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:06:09,029 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:06:12,440 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:06:14,802 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:06:19,709 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:06:21,807 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:06:24,225 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:06:32,449 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:06:34,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:06:34,338 INFO L93 Difference]: Finished difference Result 129867 states and 203927 transitions. [2022-11-19 08:06:34,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:06:34,341 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 148 [2022-11-19 08:06:34,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:06:35,095 INFO L225 Difference]: With dead ends: 129867 [2022-11-19 08:06:35,096 INFO L226 Difference]: Without dead ends: 129863 [2022-11-19 08:06:35,337 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 08:06:35,346 INFO L413 NwaCegarLoop]: 10536 mSDtfsCounter, 8852 mSDsluCounter, 8367 mSDsCounter, 0 mSdLazyCounter, 1591 mSolverCounterSat, 4 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8870 SdHoareTripleChecker+Valid, 18903 SdHoareTripleChecker+Invalid, 1604 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1591 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 35.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:06:35,347 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8870 Valid, 18903 Invalid, 1604 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4 Valid, 1591 Invalid, 9 Unknown, 0 Unchecked, 35.1s Time] [2022-11-19 08:06:35,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129863 states. [2022-11-19 08:06:41,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129863 to 129845. [2022-11-19 08:06:41,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129845 states, 85051 states have (on average 1.4262854052274518) internal successors, (121307), 90271 states have internal predecessors, (121307), 37919 states have call successors, (37919), 6912 states have call predecessors, (37919), 6874 states have return successors, (44676), 35698 states have call predecessors, (44676), 37906 states have call successors, (44676) [2022-11-19 08:06:42,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129845 states to 129845 states and 203902 transitions. [2022-11-19 08:06:42,829 INFO L78 Accepts]: Start accepts. Automaton has 129845 states and 203902 transitions. Word has length 148 [2022-11-19 08:06:42,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:06:42,830 INFO L495 AbstractCegarLoop]: Abstraction has 129845 states and 203902 transitions. [2022-11-19 08:06:42,830 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-19 08:06:42,830 INFO L276 IsEmpty]: Start isEmpty. Operand 129845 states and 203902 transitions. [2022-11-19 08:06:42,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-11-19 08:06:42,834 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:06:42,834 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:06:42,835 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-19 08:06:42,835 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:06:42,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:06:42,836 INFO L85 PathProgramCache]: Analyzing trace with hash -179036145, now seen corresponding path program 1 times [2022-11-19 08:06:42,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:06:42,836 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922371939] [2022-11-19 08:06:42,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:06:42,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:06:43,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:06:44,115 INFO L134 CoverageAnalysis]: Checked inductivity of 205 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 205 trivial. 0 not checked. [2022-11-19 08:06:44,115 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:06:44,115 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922371939] [2022-11-19 08:06:44,115 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [922371939] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:06:44,115 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:06:44,116 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:06:44,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823924982] [2022-11-19 08:06:44,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:06:44,116 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:06:44,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:06:44,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:06:44,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:06:44,117 INFO L87 Difference]: Start difference. First operand 129845 states and 203902 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-19 08:06:46,330 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:06:49,556 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:06:54,337 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:06:57,897 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:07:00,972 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:07:03,487 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:07:07,709 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:07:09,782 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:07:20,643 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:07:22,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:07:22,662 INFO L93 Difference]: Finished difference Result 129876 states and 203936 transitions. [2022-11-19 08:07:22,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:07:22,666 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 149 [2022-11-19 08:07:22,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:07:23,676 INFO L225 Difference]: With dead ends: 129876 [2022-11-19 08:07:23,676 INFO L226 Difference]: Without dead ends: 129828 [2022-11-19 08:07:23,822 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 08:07:23,822 INFO L413 NwaCegarLoop]: 10221 mSDtfsCounter, 9053 mSDsluCounter, 8394 mSDsCounter, 0 mSdLazyCounter, 1554 mSolverCounterSat, 0 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9074 SdHoareTripleChecker+Valid, 18615 SdHoareTripleChecker+Invalid, 1563 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1554 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 34.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:07:23,823 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9074 Valid, 18615 Invalid, 1563 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 1554 Invalid, 9 Unknown, 0 Unchecked, 34.0s Time] [2022-11-19 08:07:23,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129828 states. [2022-11-19 08:07:29,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129828 to 129807. [2022-11-19 08:07:29,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129807 states, 85030 states have (on average 1.4262966011995766) internal successors, (121278), 90249 states have internal predecessors, (121278), 37906 states have call successors, (37906), 6908 states have call predecessors, (37906), 6870 states have return successors, (44663), 35686 states have call predecessors, (44663), 37893 states have call successors, (44663) [2022-11-19 08:07:31,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129807 states to 129807 states and 203847 transitions. [2022-11-19 08:07:31,528 INFO L78 Accepts]: Start accepts. Automaton has 129807 states and 203847 transitions. Word has length 149 [2022-11-19 08:07:31,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:07:31,529 INFO L495 AbstractCegarLoop]: Abstraction has 129807 states and 203847 transitions. [2022-11-19 08:07:31,529 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-19 08:07:31,529 INFO L276 IsEmpty]: Start isEmpty. Operand 129807 states and 203847 transitions. [2022-11-19 08:07:31,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2022-11-19 08:07:31,546 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:07:31,546 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:07:31,546 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-19 08:07:31,546 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:07:31,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:07:31,547 INFO L85 PathProgramCache]: Analyzing trace with hash 1975624244, now seen corresponding path program 1 times [2022-11-19 08:07:31,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:07:31,548 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038534953] [2022-11-19 08:07:31,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:07:31,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:07:31,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:07:32,393 INFO L134 CoverageAnalysis]: Checked inductivity of 357 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 357 trivial. 0 not checked. [2022-11-19 08:07:32,394 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:07:32,394 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038534953] [2022-11-19 08:07:32,394 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038534953] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:07:32,394 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:07:32,394 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:07:32,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389451068] [2022-11-19 08:07:32,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:07:32,395 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:07:32,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:07:32,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:07:32,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:07:32,396 INFO L87 Difference]: Start difference. First operand 129807 states and 203847 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-19 08:07:34,637 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:07:36,872 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:07:41,672 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:07:43,898 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:07:46,025 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:07:50,005 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:07:54,364 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:07:56,431 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:07:59,862 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:08:07,397 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:08:17,728 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:08:21,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:08:21,298 INFO L93 Difference]: Finished difference Result 379573 states and 595912 transitions. [2022-11-19 08:08:21,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:08:21,303 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 191 [2022-11-19 08:08:21,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted.