./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 e04fb08f Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bfbfe4f-cb1f-41a4-a8a0-158ba474ab84/bin/utaipan-Xvt2sAort0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bfbfe4f-cb1f-41a4-a8a0-158ba474ab84/bin/utaipan-Xvt2sAort0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bfbfe4f-cb1f-41a4-a8a0-158ba474ab84/bin/utaipan-Xvt2sAort0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bfbfe4f-cb1f-41a4-a8a0-158ba474ab84/bin/utaipan-Xvt2sAort0/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_8bfbfe4f-cb1f-41a4-a8a0-158ba474ab84/bin/utaipan-Xvt2sAort0/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bfbfe4f-cb1f-41a4-a8a0-158ba474ab84/bin/utaipan-Xvt2sAort0 --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-e04fb08 [2022-11-16 16:24:59,881 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 16:24:59,883 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 16:24:59,906 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 16:24:59,906 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 16:24:59,907 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 16:24:59,908 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 16:24:59,910 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 16:24:59,912 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 16:24:59,913 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 16:24:59,914 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 16:24:59,915 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 16:24:59,916 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 16:24:59,917 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 16:24:59,918 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 16:24:59,920 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 16:24:59,920 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 16:24:59,922 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 16:24:59,924 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 16:24:59,926 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 16:24:59,928 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 16:24:59,929 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 16:24:59,931 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 16:24:59,932 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 16:24:59,936 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 16:24:59,937 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 16:24:59,937 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 16:24:59,938 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 16:24:59,939 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 16:24:59,940 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 16:24:59,941 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 16:24:59,942 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 16:24:59,943 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 16:24:59,944 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 16:24:59,945 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 16:24:59,946 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 16:24:59,947 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 16:24:59,947 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 16:24:59,947 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 16:24:59,948 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 16:24:59,949 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 16:24:59,951 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bfbfe4f-cb1f-41a4-a8a0-158ba474ab84/bin/utaipan-Xvt2sAort0/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-16 16:24:59,979 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 16:24:59,980 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 16:24:59,980 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 16:24:59,981 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 16:24:59,981 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 16:24:59,982 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 16:24:59,982 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-16 16:24:59,982 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-16 16:24:59,982 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-16 16:24:59,983 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-16 16:24:59,983 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-16 16:24:59,983 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-16 16:24:59,983 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-16 16:24:59,984 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-16 16:24:59,984 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-16 16:24:59,984 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-16 16:24:59,984 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-16 16:24:59,985 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-16 16:24:59,985 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 16:24:59,986 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 16:24:59,986 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 16:24:59,986 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 16:24:59,986 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 16:24:59,986 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 16:24:59,987 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 16:24:59,987 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 16:24:59,987 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 16:24:59,987 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 16:24:59,988 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 16:24:59,988 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 16:24:59,988 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 16:24:59,988 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-16 16:24:59,989 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 16:24:59,989 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 16:24:59,989 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-16 16:24:59,989 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 16:24:59,989 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 16:24:59,990 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-16 16:24:59,990 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_8bfbfe4f-cb1f-41a4-a8a0-158ba474ab84/bin/utaipan-Xvt2sAort0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bfbfe4f-cb1f-41a4-a8a0-158ba474ab84/bin/utaipan-Xvt2sAort0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dc84e51e523cd7d1ed5e8ead538b5d3b5209e177ea77bffad6006fa4b66e1367 [2022-11-16 16:25:00,273 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 16:25:00,298 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 16:25:00,301 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 16:25:00,303 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 16:25:00,303 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 16:25:00,305 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bfbfe4f-cb1f-41a4-a8a0-158ba474ab84/bin/utaipan-Xvt2sAort0/../../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 [2022-11-16 16:25:00,380 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bfbfe4f-cb1f-41a4-a8a0-158ba474ab84/bin/utaipan-Xvt2sAort0/data/f771ae160/df42698ad5b045ebb4a6ecb0c0c4ae2f/FLAGced1f8fe2 [2022-11-16 16:25:01,764 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 16:25:01,766 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bfbfe4f-cb1f-41a4-a8a0-158ba474ab84/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 [2022-11-16 16:25:01,938 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bfbfe4f-cb1f-41a4-a8a0-158ba474ab84/bin/utaipan-Xvt2sAort0/data/f771ae160/df42698ad5b045ebb4a6ecb0c0c4ae2f/FLAGced1f8fe2 [2022-11-16 16:25:02,376 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bfbfe4f-cb1f-41a4-a8a0-158ba474ab84/bin/utaipan-Xvt2sAort0/data/f771ae160/df42698ad5b045ebb4a6ecb0c0c4ae2f [2022-11-16 16:25:02,380 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 16:25:02,389 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 16:25:02,392 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 16:25:02,393 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 16:25:02,397 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 16:25:02,398 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 04:25:02" (1/1) ... [2022-11-16 16:25:02,400 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1656b8b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:25:02, skipping insertion in model container [2022-11-16 16:25:02,401 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 04:25:02" (1/1) ... [2022-11-16 16:25:02,409 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 16:25:02,721 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 16:25:12,743 WARN L229 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_8bfbfe4f-cb1f-41a4-a8a0-158ba474ab84/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] [2022-11-16 16:25:13,367 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 16:25:13,439 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 16:25:14,917 WARN L229 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_8bfbfe4f-cb1f-41a4-a8a0-158ba474ab84/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] [2022-11-16 16:25:14,942 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 16:25:15,644 INFO L208 MainTranslator]: Completed translation [2022-11-16 16:25:15,645 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:25:15 WrapperNode [2022-11-16 16:25:15,645 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 16:25:15,647 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 16:25:15,647 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 16:25:15,647 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 16:25:15,656 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:25:15" (1/1) ... [2022-11-16 16:25:16,227 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:25:15" (1/1) ... [2022-11-16 16:25:17,354 INFO L138 Inliner]: procedures = 819, calls = 13996, calls flagged for inlining = 321, calls inlined = 265, statements flattened = 26746 [2022-11-16 16:25:17,355 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 16:25:17,357 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 16:25:17,357 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 16:25:17,358 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 16:25:17,371 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:25:15" (1/1) ... [2022-11-16 16:25:17,372 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:25:15" (1/1) ... [2022-11-16 16:25:17,663 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:25:15" (1/1) ... [2022-11-16 16:25:17,684 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:25:15" (1/1) ... [2022-11-16 16:25:18,769 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:25:15" (1/1) ... [2022-11-16 16:25:18,908 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:25:15" (1/1) ... [2022-11-16 16:25:19,255 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:25:15" (1/1) ... [2022-11-16 16:25:19,347 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:25:15" (1/1) ... [2022-11-16 16:25:19,524 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 16:25:19,525 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 16:25:19,526 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 16:25:19,526 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 16:25:19,529 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:25:15" (1/1) ... [2022-11-16 16:25:19,537 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 16:25:19,556 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bfbfe4f-cb1f-41a4-a8a0-158ba474ab84/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 16:25:19,580 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bfbfe4f-cb1f-41a4-a8a0-158ba474ab84/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 16:25:19,591 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bfbfe4f-cb1f-41a4-a8a0-158ba474ab84/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 16:25:19,630 INFO L130 BoogieDeclarations]: Found specification of procedure qdisc_lock [2022-11-16 16:25:19,630 INFO L138 BoogieDeclarations]: Found implementation of procedure qdisc_lock [2022-11-16 16:25:19,630 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2022-11-16 16:25:19,631 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_ppp_compress [2022-11-16 16:25:19,631 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_ppp_compress [2022-11-16 16:25:19,631 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_skb [2022-11-16 16:25:19,631 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_skb [2022-11-16 16:25:19,631 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_head_init [2022-11-16 16:25:19,631 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_head_init [2022-11-16 16:25:19,632 INFO L130 BoogieDeclarations]: Found specification of procedure dst_link_failure [2022-11-16 16:25:19,632 INFO L138 BoogieDeclarations]: Found implementation of procedure dst_link_failure [2022-11-16 16:25:19,632 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-16 16:25:19,632 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-16 16:25:19,632 INFO L130 BoogieDeclarations]: Found specification of procedure bpf_prog_destroy [2022-11-16 16:25:19,633 INFO L138 BoogieDeclarations]: Found implementation of procedure bpf_prog_destroy [2022-11-16 16:25:19,633 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2022-11-16 16:25:19,633 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2022-11-16 16:25:19,633 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-16 16:25:19,633 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-16 16:25:19,634 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_tty_open [2022-11-16 16:25:19,635 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_tty_open [2022-11-16 16:25:19,635 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_concap_dl_disconn_req [2022-11-16 16:25:19,635 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_concap_dl_disconn_req [2022-11-16 16:25:19,635 INFO L130 BoogieDeclarations]: Found specification of procedure skb_peek [2022-11-16 16:25:19,636 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_peek [2022-11-16 16:25:19,636 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_modem_info_mutex [2022-11-16 16:25:19,636 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_modem_info_mutex [2022-11-16 16:25:19,636 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_empty [2022-11-16 16:25:19,636 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_empty [2022-11-16 16:25:19,637 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-16 16:25:19,637 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-16 16:25:19,637 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_command [2022-11-16 16:25:19,637 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_command [2022-11-16 16:25:19,637 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_tty_senddown [2022-11-16 16:25:19,638 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_tty_senddown [2022-11-16 16:25:19,638 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2022-11-16 16:25:19,638 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2022-11-16 16:25:19,639 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_net_stat_callback [2022-11-16 16:25:19,639 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_net_stat_callback [2022-11-16 16:25:19,639 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-16 16:25:19,639 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-16 16:25:19,640 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_minor2drv [2022-11-16 16:25:19,640 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_minor2drv [2022-11-16 16:25:19,640 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_net_init [2022-11-16 16:25:19,641 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_net_init [2022-11-16 16:25:19,641 INFO L130 BoogieDeclarations]: Found specification of procedure put_tty_driver [2022-11-16 16:25:19,641 INFO L138 BoogieDeclarations]: Found implementation of procedure put_tty_driver [2022-11-16 16:25:19,642 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-16 16:25:19,642 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-16 16:25:19,643 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_unlock_driver [2022-11-16 16:25:19,644 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_unlock_driver [2022-11-16 16:25:19,644 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2022-11-16 16:25:19,644 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2022-11-16 16:25:19,644 INFO L130 BoogieDeclarations]: Found specification of procedure slhc_init [2022-11-16 16:25:19,644 INFO L138 BoogieDeclarations]: Found implementation of procedure slhc_init [2022-11-16 16:25:19,645 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_tty_modem_reset_regs [2022-11-16 16:25:19,645 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_tty_modem_reset_regs [2022-11-16 16:25:19,645 INFO L130 BoogieDeclarations]: Found specification of procedure simple_strtoul [2022-11-16 16:25:19,646 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_strtoul [2022-11-16 16:25:19,647 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_from_linear_data [2022-11-16 16:25:19,647 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_from_linear_data [2022-11-16 16:25:19,647 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_3 [2022-11-16 16:25:19,648 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_3 [2022-11-16 16:25:19,648 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 16:25:19,648 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headroom [2022-11-16 16:25:19,648 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headroom [2022-11-16 16:25:19,648 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_net_device_wake_queue [2022-11-16 16:25:19,649 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_net_device_wake_queue [2022-11-16 16:25:19,649 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait_event [2022-11-16 16:25:19,649 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait_event [2022-11-16 16:25:19,649 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-11-16 16:25:19,649 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-11-16 16:25:19,650 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_writebuf_skb_stub [2022-11-16 16:25:19,650 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_writebuf_skb_stub [2022-11-16 16:25:19,650 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_unexclusive_channel [2022-11-16 16:25:19,650 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_unexclusive_channel [2022-11-16 16:25:19,650 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_net_realrm [2022-11-16 16:25:19,651 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_net_realrm [2022-11-16 16:25:19,651 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-11-16 16:25:19,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-11-16 16:25:19,652 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-16 16:25:19,652 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_3 [2022-11-16 16:25:19,652 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_3 [2022-11-16 16:25:19,653 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 16:25:19,653 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-16 16:25:19,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-16 16:25:19,654 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-16 16:25:19,654 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-16 16:25:19,655 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-16 16:25:19,655 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-16 16:25:19,655 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-11-16 16:25:19,656 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-11-16 16:25:19,657 INFO L130 BoogieDeclarations]: Found specification of procedure iminor [2022-11-16 16:25:19,657 INFO L138 BoogieDeclarations]: Found implementation of procedure iminor [2022-11-16 16:25:19,657 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_net_add_to_bundle [2022-11-16 16:25:19,657 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_net_add_to_bundle [2022-11-16 16:25:19,658 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_tail [2022-11-16 16:25:19,658 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_tail [2022-11-16 16:25:19,658 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_tty_set_termios [2022-11-16 16:25:19,658 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_tty_set_termios [2022-11-16 16:25:19,658 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_tty_modem_result [2022-11-16 16:25:19,659 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_tty_modem_result [2022-11-16 16:25:19,659 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2022-11-16 16:25:19,659 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2022-11-16 16:25:19,660 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-16 16:25:19,660 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-16 16:25:19,660 INFO L130 BoogieDeclarations]: Found specification of procedure set_global_features [2022-11-16 16:25:19,660 INFO L138 BoogieDeclarations]: Found implementation of procedure set_global_features [2022-11-16 16:25:19,660 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2022-11-16 16:25:19,661 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2022-11-16 16:25:19,662 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 16:25:19,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 16:25:19,665 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_x25iface_disconn_ind [2022-11-16 16:25:19,666 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_x25iface_disconn_ind [2022-11-16 16:25:19,666 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-16 16:25:19,667 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-16 16:25:19,669 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_tty_write_room [2022-11-16 16:25:19,670 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_tty_write_room [2022-11-16 16:25:19,670 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_timer_ctrl [2022-11-16 16:25:19,670 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_timer_ctrl [2022-11-16 16:25:19,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-16 16:25:19,676 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_info_update [2022-11-16 16:25:19,676 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_info_update [2022-11-16 16:25:19,676 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_net_lp_busy [2022-11-16 16:25:19,676 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_net_lp_busy [2022-11-16 16:25:19,677 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2022-11-16 16:25:19,677 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2022-11-16 16:25:19,677 INFO L130 BoogieDeclarations]: Found specification of procedure file_inode [2022-11-16 16:25:19,677 INFO L138 BoogieDeclarations]: Found implementation of procedure file_inode [2022-11-16 16:25:19,677 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-11-16 16:25:19,677 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-11-16 16:25:19,678 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_x25iface_receive [2022-11-16 16:25:19,678 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_x25iface_receive [2022-11-16 16:25:19,678 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~X~int~TO~int [2022-11-16 16:25:19,678 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~X~int~TO~int [2022-11-16 16:25:19,678 INFO L130 BoogieDeclarations]: Found specification of procedure tty_flip_buffer_push [2022-11-16 16:25:19,679 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_flip_buffer_push [2022-11-16 16:25:19,679 INFO L130 BoogieDeclarations]: Found specification of procedure tty_insert_flip_char [2022-11-16 16:25:19,679 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_insert_flip_char [2022-11-16 16:25:19,679 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-16 16:25:19,679 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-16 16:25:19,679 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-16 16:25:19,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-16 16:25:19,680 INFO L130 BoogieDeclarations]: Found specification of procedure pdata_is_bad [2022-11-16 16:25:19,680 INFO L138 BoogieDeclarations]: Found implementation of procedure pdata_is_bad [2022-11-16 16:25:19,680 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_net_unbind_channel [2022-11-16 16:25:19,681 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_net_unbind_channel [2022-11-16 16:25:19,681 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-16 16:25:19,682 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-16 16:25:19,682 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_get_free_channel [2022-11-16 16:25:19,682 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_get_free_channel [2022-11-16 16:25:19,682 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2022-11-16 16:25:19,682 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2022-11-16 16:25:19,683 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-11-16 16:25:19,683 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-11-16 16:25:19,683 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_tty_modem_reset_vpar [2022-11-16 16:25:19,683 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_tty_modem_reset_vpar [2022-11-16 16:25:19,683 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 16:25:19,684 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_v110_open [2022-11-16 16:25:19,684 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_v110_open [2022-11-16 16:25:19,684 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-16 16:25:19,684 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-16 16:25:19,684 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_tty_tiocmget [2022-11-16 16:25:19,684 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_tty_tiocmget [2022-11-16 16:25:19,685 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_tty_handleDLEdown [2022-11-16 16:25:19,685 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_tty_handleDLEdown [2022-11-16 16:25:19,685 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-16 16:25:19,685 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2022-11-16 16:25:19,685 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2022-11-16 16:25:19,685 INFO L130 BoogieDeclarations]: Found specification of procedure set_arg [2022-11-16 16:25:19,686 INFO L138 BoogieDeclarations]: Found implementation of procedure set_arg [2022-11-16 16:25:19,686 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_queue_tail [2022-11-16 16:25:19,686 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_queue_tail [2022-11-16 16:25:19,686 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_close [2022-11-16 16:25:19,686 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_close [2022-11-16 16:25:19,687 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible [2022-11-16 16:25:19,687 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible [2022-11-16 16:25:19,687 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_net_dial [2022-11-16 16:25:19,687 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_net_dial [2022-11-16 16:25:19,687 INFO L130 BoogieDeclarations]: Found specification of procedure local_bh_disable [2022-11-16 16:25:19,687 INFO L138 BoogieDeclarations]: Found implementation of procedure local_bh_disable [2022-11-16 16:25:19,688 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_net_bind_channel [2022-11-16 16:25:19,688 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_net_bind_channel [2022-11-16 16:25:19,688 INFO L130 BoogieDeclarations]: Found specification of procedure strcat [2022-11-16 16:25:19,689 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-16 16:25:19,690 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-16 16:25:19,690 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2022-11-16 16:25:19,690 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2022-11-16 16:25:19,690 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memmove [2022-11-16 16:25:19,690 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memmove [2022-11-16 16:25:19,691 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-11-16 16:25:19,691 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-11-16 16:25:19,691 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_wildmat [2022-11-16 16:25:19,691 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_wildmat [2022-11-16 16:25:19,691 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_net_force_dial_lp [2022-11-16 16:25:19,691 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_net_force_dial_lp [2022-11-16 16:25:19,692 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-16 16:25:19,692 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-16 16:25:19,692 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_net_new [2022-11-16 16:25:19,692 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_net_new [2022-11-16 16:25:19,692 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_x25iface_connect_ind [2022-11-16 16:25:19,692 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_x25iface_connect_ind [2022-11-16 16:25:19,693 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_tty_flush_buffer [2022-11-16 16:25:19,693 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_tty_flush_buffer [2022-11-16 16:25:19,693 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_unlock_drivers [2022-11-16 16:25:19,693 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_unlock_drivers [2022-11-16 16:25:19,693 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2022-11-16 16:25:19,693 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2022-11-16 16:25:19,694 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_mtx_of_isdn_devt [2022-11-16 16:25:19,694 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_mtx_of_isdn_devt [2022-11-16 16:25:19,694 INFO L130 BoogieDeclarations]: Found specification of procedure skb_realloc_headroom [2022-11-16 16:25:19,694 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_realloc_headroom [2022-11-16 16:25:19,694 INFO L130 BoogieDeclarations]: Found specification of procedure slhc_free [2022-11-16 16:25:19,694 INFO L138 BoogieDeclarations]: Found implementation of procedure slhc_free [2022-11-16 16:25:19,695 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_ppp_mp_init [2022-11-16 16:25:19,695 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_ppp_mp_init [2022-11-16 16:25:19,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 16:25:19,695 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_all_eaz [2022-11-16 16:25:19,695 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_all_eaz [2022-11-16 16:25:19,695 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2022-11-16 16:25:19,696 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2022-11-16 16:25:19,696 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-16 16:25:19,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-16 16:25:19,696 INFO L130 BoogieDeclarations]: Found specification of procedure illegal_state_warn [2022-11-16 16:25:19,696 INFO L138 BoogieDeclarations]: Found implementation of procedure illegal_state_warn [2022-11-16 16:25:19,696 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_ppp_skb_push [2022-11-16 16:25:19,697 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_ppp_skb_push [2022-11-16 16:25:19,697 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_audio_dtmf_init [2022-11-16 16:25:19,697 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_audio_dtmf_init [2022-11-16 16:25:19,697 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_tty_modem_ncarrier [2022-11-16 16:25:19,697 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_tty_modem_ncarrier [2022-11-16 16:25:19,697 INFO L130 BoogieDeclarations]: Found specification of procedure tty_wakeup [2022-11-16 16:25:19,698 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_wakeup [2022-11-16 16:25:19,698 INFO L130 BoogieDeclarations]: Found specification of procedure tty_wait_until_sent [2022-11-16 16:25:19,698 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_wait_until_sent [2022-11-16 16:25:19,698 INFO L130 BoogieDeclarations]: Found specification of procedure current_thread_info [2022-11-16 16:25:19,698 INFO L138 BoogieDeclarations]: Found implementation of procedure current_thread_info [2022-11-16 16:25:19,700 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2022-11-16 16:25:19,704 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2022-11-16 16:25:19,704 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-11-16 16:25:19,704 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-11-16 16:25:19,705 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_audio_put_dle_code [2022-11-16 16:25:19,705 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_audio_put_dle_code [2022-11-16 16:25:19,705 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_net_ioctl [2022-11-16 16:25:19,705 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_net_ioctl [2022-11-16 16:25:19,705 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_writebuf_stub [2022-11-16 16:25:19,705 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_writebuf_stub [2022-11-16 16:25:19,706 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_net_dial_req [2022-11-16 16:25:19,708 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_net_dial_req [2022-11-16 16:25:19,708 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_net_write_super [2022-11-16 16:25:19,708 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_net_write_super [2022-11-16 16:25:19,708 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_tty_cmd_ATA [2022-11-16 16:25:19,708 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_tty_cmd_ATA [2022-11-16 16:25:19,709 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_mac_header [2022-11-16 16:25:19,709 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_mac_header [2022-11-16 16:25:19,709 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-11-16 16:25:19,709 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-11-16 16:25:19,709 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-16 16:25:19,709 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-16 16:25:19,710 INFO L130 BoogieDeclarations]: Found specification of procedure tty_check_change [2022-11-16 16:25:19,710 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_check_change [2022-11-16 16:25:19,710 INFO L130 BoogieDeclarations]: Found specification of procedure tty_buffer_request_room [2022-11-16 16:25:19,710 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_buffer_request_room [2022-11-16 16:25:19,710 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-16 16:25:19,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-16 16:25:19,711 INFO L130 BoogieDeclarations]: Found specification of procedure char_buf_ptr [2022-11-16 16:25:19,711 INFO L138 BoogieDeclarations]: Found implementation of procedure char_buf_ptr [2022-11-16 16:25:19,711 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_status_callback [2022-11-16 16:25:19,711 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_status_callback [2022-11-16 16:25:19,711 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_1 [2022-11-16 16:25:19,711 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_1 [2022-11-16 16:25:19,711 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_net_hangup [2022-11-16 16:25:19,712 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_net_hangup [2022-11-16 16:25:19,712 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_net_lp_disconnected [2022-11-16 16:25:19,712 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_net_lp_disconnected [2022-11-16 16:25:19,712 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_x25iface_proto_del [2022-11-16 16:25:19,712 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_x25iface_proto_del [2022-11-16 16:25:19,712 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-16 16:25:19,713 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-16 16:25:19,713 INFO L130 BoogieDeclarations]: Found specification of procedure get_filter [2022-11-16 16:25:19,713 INFO L138 BoogieDeclarations]: Found implementation of procedure get_filter [2022-11-16 16:25:19,713 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_net_device_busy [2022-11-16 16:25:19,713 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_net_device_busy [2022-11-16 16:25:19,713 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_lock_drivers [2022-11-16 16:25:19,713 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_lock_drivers [2022-11-16 16:25:19,714 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_net_close [2022-11-16 16:25:19,714 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_net_close [2022-11-16 16:25:19,714 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_getnum [2022-11-16 16:25:19,714 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_getnum [2022-11-16 16:25:19,714 INFO L130 BoogieDeclarations]: Found specification of procedure bpf_prog_create [2022-11-16 16:25:19,714 INFO L138 BoogieDeclarations]: Found implementation of procedure bpf_prog_create [2022-11-16 16:25:19,715 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2022-11-16 16:25:19,715 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2022-11-16 16:25:19,715 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_poll [2022-11-16 16:25:19,715 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_poll [2022-11-16 16:25:19,715 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-16 16:25:19,715 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-16 16:25:19,715 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_tty_change_speed [2022-11-16 16:25:19,716 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_tty_change_speed [2022-11-16 16:25:19,716 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_tty_carrier_raised [2022-11-16 16:25:19,716 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_tty_carrier_raised [2022-11-16 16:25:19,716 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 16:25:19,716 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_audio_ulaw2alaw [2022-11-16 16:25:19,716 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_audio_ulaw2alaw [2022-11-16 16:25:19,717 INFO L130 BoogieDeclarations]: Found specification of procedure __chk_range_not_ok [2022-11-16 16:25:19,717 INFO L138 BoogieDeclarations]: Found implementation of procedure __chk_range_not_ok [2022-11-16 16:25:19,717 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2022-11-16 16:25:19,717 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2022-11-16 16:25:19,717 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_chrdev_150 [2022-11-16 16:25:19,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_chrdev_150 [2022-11-16 16:25:19,717 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-16 16:25:19,718 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-16 16:25:19,718 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_net_device_stop_queue [2022-11-16 16:25:19,718 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_net_device_stop_queue [2022-11-16 16:25:19,718 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mtx_of_isdn_devt [2022-11-16 16:25:19,718 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mtx_of_isdn_devt [2022-11-16 16:25:19,718 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_tty_shutdown [2022-11-16 16:25:19,718 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_tty_shutdown [2022-11-16 16:25:19,719 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2022-11-16 16:25:19,719 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2022-11-16 16:25:19,719 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-16 16:25:19,719 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_tty_get_msnstr [2022-11-16 16:25:19,719 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_tty_get_msnstr [2022-11-16 16:25:19,719 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_net_reset [2022-11-16 16:25:19,720 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_net_reset [2022-11-16 16:25:19,720 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-16 16:25:19,720 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-16 16:25:19,720 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_ppp_frame_log [2022-11-16 16:25:19,720 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_ppp_frame_log [2022-11-16 16:25:19,720 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-16 16:25:19,720 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_tty_flush_chars [2022-11-16 16:25:19,721 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_tty_flush_chars [2022-11-16 16:25:19,721 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_net_ciscohdlck_alloc_skb [2022-11-16 16:25:19,721 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_net_ciscohdlck_alloc_skb [2022-11-16 16:25:19,721 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_map_eaz2msn [2022-11-16 16:25:19,721 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_map_eaz2msn [2022-11-16 16:25:19,721 INFO L130 BoogieDeclarations]: Found specification of procedure FlipBits [2022-11-16 16:25:19,722 INFO L138 BoogieDeclarations]: Found implementation of procedure FlipBits [2022-11-16 16:25:19,722 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_ppp_free [2022-11-16 16:25:19,722 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_ppp_free [2022-11-16 16:25:19,722 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_audio_alaw2ulaw [2022-11-16 16:25:19,722 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_audio_alaw2ulaw [2022-11-16 16:25:19,722 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_net_tx_timeout [2022-11-16 16:25:19,722 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_net_tx_timeout [2022-11-16 16:25:19,723 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-16 16:25:19,723 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-16 16:25:19,723 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_star [2022-11-16 16:25:19,723 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_star [2022-11-16 16:25:19,723 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_destroy [2022-11-16 16:25:19,723 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_destroy [2022-11-16 16:25:19,724 INFO L130 BoogieDeclarations]: Found specification of procedure skb_trim [2022-11-16 16:25:19,724 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_trim [2022-11-16 16:25:19,724 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_audio_adpcm_init [2022-11-16 16:25:19,724 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_audio_adpcm_init [2022-11-16 16:25:19,724 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_open [2022-11-16 16:25:19,724 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_open [2022-11-16 16:25:19,724 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_x25iface_proto_restart [2022-11-16 16:25:19,725 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_x25iface_proto_restart [2022-11-16 16:25:19,725 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2022-11-16 16:25:19,725 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2022-11-16 16:25:19,725 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_purge [2022-11-16 16:25:19,725 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_purge [2022-11-16 16:25:19,725 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_tty_exit [2022-11-16 16:25:19,725 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_tty_exit [2022-11-16 16:25:19,726 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_net_findif [2022-11-16 16:25:19,726 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_net_findif [2022-11-16 16:25:19,726 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_net_writebuf_skb [2022-11-16 16:25:19,726 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_net_writebuf_skb [2022-11-16 16:25:19,726 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-16 16:25:19,726 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-16 16:25:19,727 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_3 [2022-11-16 16:25:19,727 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_3 [2022-11-16 16:25:19,727 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_tty_tiocmset [2022-11-16 16:25:19,727 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_tty_tiocmset [2022-11-16 16:25:19,727 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_tty_chars_in_buffer [2022-11-16 16:25:19,728 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_tty_chars_in_buffer [2022-11-16 16:25:19,728 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-16 16:25:19,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-16 16:25:19,729 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_tty_cleanup_xmit [2022-11-16 16:25:19,729 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_tty_cleanup_xmit [2022-11-16 16:25:19,729 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_tty_throttle [2022-11-16 16:25:19,729 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_tty_throttle [2022-11-16 16:25:19,729 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_modem_info_mutex [2022-11-16 16:25:19,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_modem_info_mutex [2022-11-16 16:25:19,730 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_tty_on_hook [2022-11-16 16:25:19,730 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_tty_on_hook [2022-11-16 16:25:19,730 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_tty_unthrottle [2022-11-16 16:25:19,730 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_tty_unthrottle [2022-11-16 16:25:19,730 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-11-16 16:25:19,731 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-11-16 16:25:19,731 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_tty_reset_profile [2022-11-16 16:25:19,731 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_tty_reset_profile [2022-11-16 16:25:19,731 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_header_cache_update [2022-11-16 16:25:19,731 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_header_cache_update [2022-11-16 16:25:19,731 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2022-11-16 16:25:19,731 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2022-11-16 16:25:19,732 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_ppp_mp_free_skb [2022-11-16 16:25:19,732 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_ppp_mp_free_skb [2022-11-16 16:25:19,732 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2022-11-16 16:25:19,732 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2022-11-16 16:25:19,732 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2022-11-16 16:25:19,732 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2022-11-16 16:25:19,733 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_calc_usage [2022-11-16 16:25:19,733 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_calc_usage [2022-11-16 16:25:19,733 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2022-11-16 16:25:19,733 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2022-11-16 16:25:19,733 INFO L130 BoogieDeclarations]: Found specification of procedure skb_dequeue [2022-11-16 16:25:19,733 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_dequeue [2022-11-16 16:25:19,733 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-16 16:25:19,734 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-16 16:25:19,734 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-16 16:25:19,734 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_tty_stat_callback [2022-11-16 16:25:19,734 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_tty_stat_callback [2022-11-16 16:25:19,734 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_add_channels [2022-11-16 16:25:19,734 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_add_channels [2022-11-16 16:25:19,735 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_free_channel [2022-11-16 16:25:19,735 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_free_channel [2022-11-16 16:25:19,735 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_v110_sync [2022-11-16 16:25:19,735 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_v110_sync [2022-11-16 16:25:19,735 INFO L130 BoogieDeclarations]: Found specification of procedure get_arg [2022-11-16 16:25:19,735 INFO L138 BoogieDeclarations]: Found implementation of procedure get_arg [2022-11-16 16:25:19,735 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_net_device_started [2022-11-16 16:25:19,736 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_net_device_started [2022-11-16 16:25:19,736 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_msncmp [2022-11-16 16:25:19,736 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_msncmp [2022-11-16 16:25:19,736 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-16 16:25:19,736 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-16 16:25:19,736 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_v110_stat_callback [2022-11-16 16:25:19,736 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_v110_stat_callback [2022-11-16 16:25:19,737 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-16 16:25:19,737 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-16 16:25:19,737 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_tty_install [2022-11-16 16:25:19,737 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_tty_install [2022-11-16 16:25:19,737 INFO L130 BoogieDeclarations]: Found specification of procedure poll_wait [2022-11-16 16:25:19,737 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_wait [2022-11-16 16:25:19,738 INFO L130 BoogieDeclarations]: Found specification of procedure x25_type_trans [2022-11-16 16:25:19,738 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_type_trans [2022-11-16 16:25:19,738 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-16 16:25:19,738 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-16 16:25:19,738 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_audio_tlookup [2022-11-16 16:25:19,738 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_audio_tlookup [2022-11-16 16:25:19,738 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_net_swap_usage [2022-11-16 16:25:19,739 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_net_swap_usage [2022-11-16 16:25:19,739 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_concap_dl_data_req [2022-11-16 16:25:19,739 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_concap_dl_data_req [2022-11-16 16:25:19,739 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_minor2chan [2022-11-16 16:25:19,739 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_minor2chan [2022-11-16 16:25:19,739 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-16 16:25:19,740 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_v110_close [2022-11-16 16:25:19,740 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_v110_close [2022-11-16 16:25:19,740 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2022-11-16 16:25:19,740 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2022-11-16 16:25:19,740 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_tty_paranoia_check [2022-11-16 16:25:19,740 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_tty_paranoia_check [2022-11-16 16:25:19,740 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-11-16 16:25:19,741 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-11-16 16:25:19,741 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_x25iface_xmit [2022-11-16 16:25:19,741 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_x25iface_xmit [2022-11-16 16:25:19,741 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~X~$Pointer$~X~int~X~$Pointer$~TO~VOID [2022-11-16 16:25:19,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~X~$Pointer$~X~int~X~$Pointer$~TO~VOID [2022-11-16 16:25:19,741 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_tty_find_icall [2022-11-16 16:25:19,742 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_tty_find_icall [2022-11-16 16:25:19,742 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-16 16:25:19,742 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-16 16:25:19,742 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_audio_linear2ulaw [2022-11-16 16:25:19,742 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_audio_linear2ulaw [2022-11-16 16:25:19,742 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~X~int~X~$Pointer$~TO~int [2022-11-16 16:25:19,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~X~int~X~$Pointer$~TO~int [2022-11-16 16:25:19,743 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_tty_tint [2022-11-16 16:25:19,743 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_tty_tint [2022-11-16 16:25:19,743 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2022-11-16 16:25:19,743 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2022-11-16 16:25:19,743 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-16 16:25:19,743 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-16 16:25:19,743 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_tty_hangup [2022-11-16 16:25:19,744 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_tty_hangup [2022-11-16 16:25:19,744 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_concap_dl_connect_req [2022-11-16 16:25:19,744 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_concap_dl_connect_req [2022-11-16 16:25:19,744 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2022-11-16 16:25:19,744 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2022-11-16 16:25:19,744 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_tty_at_cout [2022-11-16 16:25:19,745 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_tty_at_cout [2022-11-16 16:25:19,745 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_ppp_ccp_xmit_reset [2022-11-16 16:25:19,745 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_ppp_ccp_xmit_reset [2022-11-16 16:25:19,745 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-11-16 16:25:19,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-11-16 16:25:19,745 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-11-16 16:25:19,745 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-11-16 16:25:19,746 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-11-16 16:25:19,746 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-11-16 16:25:19,746 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_write [2022-11-16 16:25:19,746 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_write [2022-11-16 16:25:19,746 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_tty_ioctl [2022-11-16 16:25:19,746 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_tty_ioctl [2022-11-16 16:25:19,746 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_net_open [2022-11-16 16:25:19,747 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_net_open [2022-11-16 16:25:19,747 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_isdn_mutex [2022-11-16 16:25:19,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_isdn_mutex [2022-11-16 16:25:19,747 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_ppp_ccp_reset_free_state [2022-11-16 16:25:19,747 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_ppp_ccp_reset_free_state [2022-11-16 16:25:19,747 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_isdn_mutex [2022-11-16 16:25:19,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_isdn_mutex [2022-11-16 16:25:19,748 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_net_unreachable [2022-11-16 16:25:19,748 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_net_unreachable [2022-11-16 16:25:19,748 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_getrev [2022-11-16 16:25:19,748 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_getrev [2022-11-16 16:25:19,748 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-11-16 16:25:19,748 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-11-16 16:25:19,748 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_net_swapbind [2022-11-16 16:25:19,749 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_net_swapbind [2022-11-16 16:25:19,749 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_x25iface_proto_new [2022-11-16 16:25:19,749 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_x25iface_proto_new [2022-11-16 16:25:19,749 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_ppp_bind [2022-11-16 16:25:19,749 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_ppp_bind [2022-11-16 16:25:19,749 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_net_rm_from_bundle [2022-11-16 16:25:19,749 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_net_rm_from_bundle [2022-11-16 16:25:19,750 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-16 16:25:19,750 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-16 16:25:19,750 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_net_get_stats [2022-11-16 16:25:19,750 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_net_get_stats [2022-11-16 16:25:19,750 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-16 16:25:19,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-16 16:25:19,750 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_net_softint [2022-11-16 16:25:19,751 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_net_softint [2022-11-16 16:25:19,751 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_x25iface_proto_close [2022-11-16 16:25:19,751 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_x25iface_proto_close [2022-11-16 16:25:19,751 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_tty_check_ats [2022-11-16 16:25:19,751 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_tty_check_ats [2022-11-16 16:25:19,751 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 16:25:19,751 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_tty_fax_modem_result [2022-11-16 16:25:19,752 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_tty_fax_modem_result [2022-11-16 16:25:19,752 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2022-11-16 16:25:19,752 INFO L130 BoogieDeclarations]: Found specification of procedure tty_unregister_driver [2022-11-16 16:25:19,752 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_unregister_driver [2022-11-16 16:25:19,752 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_tty_modem_hup [2022-11-16 16:25:19,752 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_tty_modem_hup [2022-11-16 16:25:19,752 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_dc2minor [2022-11-16 16:25:19,753 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_dc2minor [2022-11-16 16:25:22,461 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 16:25:22,468 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 16:25:22,781 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-16 16:26:58,811 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 16:27:12,374 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 16:27:12,374 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-16 16:27:12,387 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 04:27:12 BoogieIcfgContainer [2022-11-16 16:27:12,387 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 16:27:12,389 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 16:27:12,390 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 16:27:12,396 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 16:27:12,397 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 04:25:02" (1/3) ... [2022-11-16 16:27:12,398 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d634b8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 04:27:12, skipping insertion in model container [2022-11-16 16:27:12,398 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:25:15" (2/3) ... [2022-11-16 16:27:12,401 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d634b8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 04:27:12, skipping insertion in model container [2022-11-16 16:27:12,402 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 04:27:12" (3/3) ... [2022-11-16 16:27:12,403 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--isdn--i4l--isdn.ko-entry_point.cil.out.i [2022-11-16 16:27:12,428 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 16:27:12,428 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 16:27:12,792 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 16:27:12,804 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;@1b18b470, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 16:27:12,804 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 16:27:12,829 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) [2022-11-16 16:27:12,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-11-16 16:27:12,865 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:27:12,866 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] [2022-11-16 16:27:12,867 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 16:27:12,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:27:12,873 INFO L85 PathProgramCache]: Analyzing trace with hash 1025779632, now seen corresponding path program 1 times [2022-11-16 16:27:12,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:27:12,885 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845969301] [2022-11-16 16:27:12,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:27:12,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:27:13,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:27:14,921 INFO L134 CoverageAnalysis]: Checked inductivity of 205 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 205 trivial. 0 not checked. [2022-11-16 16:27:14,922 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:27:14,922 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845969301] [2022-11-16 16:27:14,923 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [845969301] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:27:14,923 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:27:14,923 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 16:27:14,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237413488] [2022-11-16 16:27:14,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:27:14,931 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 16:27:14,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:27:14,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 16:27:14,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 16:27:14,986 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) [2022-11-16 16:27:17,310 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:27:20,798 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:27:24,965 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-16 16:27:30,087 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:27:34,068 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:27:36,452 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:27:39,529 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:27:41,647 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:27:43,947 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:27:48,971 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:27:49,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:27:49,994 INFO L93 Difference]: Finished difference Result 16781 states and 26511 transitions. [2022-11-16 16:27:49,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 16:27:50,000 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 [2022-11-16 16:27:50,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:27:50,128 INFO L225 Difference]: With dead ends: 16781 [2022-11-16 16:27:50,129 INFO L226 Difference]: Without dead ends: 10781 [2022-11-16 16:27:50,216 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 [2022-11-16 16:27:50,227 INFO L413 NwaCegarLoop]: 9869 mSDtfsCounter, 7343 mSDsluCounter, 8410 mSDsCounter, 0 mSdLazyCounter, 1579 mSolverCounterSat, 4 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32.7s 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, 34.1s IncrementalHoareTripleChecker+Time [2022-11-16 16:27:50,229 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7358 Valid, 18279 Invalid, 1592 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4 Valid, 1579 Invalid, 9 Unknown, 0 Unchecked, 34.1s Time] [2022-11-16 16:27:50,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10781 states. [2022-11-16 16:27:51,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10781 to 10754. [2022-11-16 16:27:51,060 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) [2022-11-16 16:27:51,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10754 states to 10754 states and 16518 transitions. [2022-11-16 16:27:51,198 INFO L78 Accepts]: Start accepts. Automaton has 10754 states and 16518 transitions. Word has length 138 [2022-11-16 16:27:51,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:27:51,203 INFO L495 AbstractCegarLoop]: Abstraction has 10754 states and 16518 transitions. [2022-11-16 16:27:51,205 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) [2022-11-16 16:27:51,205 INFO L276 IsEmpty]: Start isEmpty. Operand 10754 states and 16518 transitions. [2022-11-16 16:27:51,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-11-16 16:27:51,214 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:27:51,214 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] [2022-11-16 16:27:51,214 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 16:27:51,215 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 16:27:51,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:27:51,216 INFO L85 PathProgramCache]: Analyzing trace with hash 2098965903, now seen corresponding path program 1 times [2022-11-16 16:27:51,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:27:51,216 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043270678] [2022-11-16 16:27:51,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:27:51,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:27:52,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:27:53,169 INFO L134 CoverageAnalysis]: Checked inductivity of 205 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 205 trivial. 0 not checked. [2022-11-16 16:27:53,169 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:27:53,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043270678] [2022-11-16 16:27:53,170 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2043270678] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:27:53,170 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:27:53,170 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 16:27:53,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775724151] [2022-11-16 16:27:53,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:27:53,172 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 16:27:53,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:27:53,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 16:27:53,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 16:27:53,174 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) [2022-11-16 16:27:55,439 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.26s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:27:59,085 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:28:02,973 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-16 16:28:06,490 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:28:08,127 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:28:10,530 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:28:13,676 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:28:17,346 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:28:19,613 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:28:21,852 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-16 16:28:28,791 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:28:30,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:28:30,533 INFO L93 Difference]: Finished difference Result 21425 states and 32925 transitions. [2022-11-16 16:28:30,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 16:28:30,537 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 [2022-11-16 16:28:30,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:28:30,763 INFO L225 Difference]: With dead ends: 21425 [2022-11-16 16:28:30,763 INFO L226 Difference]: Without dead ends: 21422 [2022-11-16 16:28:30,790 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 [2022-11-16 16:28:30,791 INFO L413 NwaCegarLoop]: 10192 mSDtfsCounter, 9075 mSDsluCounter, 8379 mSDsCounter, 0 mSdLazyCounter, 1555 mSolverCounterSat, 1 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9093 SdHoareTripleChecker+Valid, 18571 SdHoareTripleChecker+Invalid, 1565 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1555 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36.5s IncrementalHoareTripleChecker+Time [2022-11-16 16:28:30,791 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9093 Valid, 18571 Invalid, 1565 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1555 Invalid, 9 Unknown, 0 Unchecked, 36.5s Time] [2022-11-16 16:28:30,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21422 states. [2022-11-16 16:28:32,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21422 to 21408. [2022-11-16 16:28:32,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21408 states, 14098 states have (on average 1.4339622641509433) internal successors, (20216), 14924 states have internal predecessors, (20216), 6333 states have call successors, (6333), 977 states have call predecessors, (6333), 976 states have return successors, (6360), 5987 states have call predecessors, (6360), 6321 states have call successors, (6360) [2022-11-16 16:28:32,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21408 states to 21408 states and 32909 transitions. [2022-11-16 16:28:32,375 INFO L78 Accepts]: Start accepts. Automaton has 21408 states and 32909 transitions. Word has length 144 [2022-11-16 16:28:32,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:28:32,378 INFO L495 AbstractCegarLoop]: Abstraction has 21408 states and 32909 transitions. [2022-11-16 16:28:32,378 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) [2022-11-16 16:28:32,378 INFO L276 IsEmpty]: Start isEmpty. Operand 21408 states and 32909 transitions. [2022-11-16 16:28:32,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-11-16 16:28:32,389 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:28:32,389 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] [2022-11-16 16:28:32,390 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 16:28:32,390 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 16:28:32,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:28:32,390 INFO L85 PathProgramCache]: Analyzing trace with hash 640594889, now seen corresponding path program 1 times [2022-11-16 16:28:32,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:28:32,391 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714928413] [2022-11-16 16:28:32,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:28:32,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:28:32,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:28:33,556 INFO L134 CoverageAnalysis]: Checked inductivity of 205 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 205 trivial. 0 not checked. [2022-11-16 16:28:33,556 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:28:33,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1714928413] [2022-11-16 16:28:33,556 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1714928413] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:28:33,556 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:28:33,556 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 16:28:33,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577188895] [2022-11-16 16:28:33,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:28:33,557 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 16:28:33,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:28:33,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 16:28:33,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 16:28:33,558 INFO L87 Difference]: Start difference. First operand 21408 states and 32909 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) [2022-11-16 16:28:35,789 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:28:39,559 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:28:41,344 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:28:44,966 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-16 16:28:49,471 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-16 16:28:52,259 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:28:56,652 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:28:58,872 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:29:00,962 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:29:03,240 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:29:07,736 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:29:10,270 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:29:12,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:29:12,156 INFO L93 Difference]: Finished difference Result 35231 states and 53778 transitions. [2022-11-16 16:29:12,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 16:29:12,159 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 [2022-11-16 16:29:12,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:29:12,406 INFO L225 Difference]: With dead ends: 35231 [2022-11-16 16:29:12,407 INFO L226 Difference]: Without dead ends: 35227 [2022-11-16 16:29:12,449 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 [2022-11-16 16:29:12,452 INFO L413 NwaCegarLoop]: 9885 mSDtfsCounter, 7307 mSDsluCounter, 8352 mSDsCounter, 0 mSdLazyCounter, 1555 mSolverCounterSat, 4 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 36.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7312 SdHoareTripleChecker+Valid, 18237 SdHoareTripleChecker+Invalid, 1568 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1555 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 37.7s IncrementalHoareTripleChecker+Time [2022-11-16 16:29:12,457 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7312 Valid, 18237 Invalid, 1568 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4 Valid, 1555 Invalid, 9 Unknown, 0 Unchecked, 37.7s Time] [2022-11-16 16:29:12,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35227 states. [2022-11-16 16:29:14,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35227 to 35219. [2022-11-16 16:29:14,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35219 states, 23084 states have (on average 1.4282619996534396) internal successors, (32970), 24499 states have internal predecessors, (32970), 10365 states have call successors, (10365), 1778 states have call predecessors, (10365), 1769 states have return successors, (10428), 9762 states have call predecessors, (10428), 10353 states have call successors, (10428) [2022-11-16 16:29:15,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35219 states to 35219 states and 53763 transitions. [2022-11-16 16:29:15,049 INFO L78 Accepts]: Start accepts. Automaton has 35219 states and 53763 transitions. Word has length 145 [2022-11-16 16:29:15,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:29:15,050 INFO L495 AbstractCegarLoop]: Abstraction has 35219 states and 53763 transitions. [2022-11-16 16:29:15,050 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) [2022-11-16 16:29:15,050 INFO L276 IsEmpty]: Start isEmpty. Operand 35219 states and 53763 transitions. [2022-11-16 16:29:15,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-11-16 16:29:15,054 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:29:15,054 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] [2022-11-16 16:29:15,054 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 16:29:15,055 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 16:29:15,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:29:15,055 INFO L85 PathProgramCache]: Analyzing trace with hash -1619228718, now seen corresponding path program 1 times [2022-11-16 16:29:15,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:29:15,056 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101268472] [2022-11-16 16:29:15,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:29:15,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:29:15,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:29:16,327 INFO L134 CoverageAnalysis]: Checked inductivity of 205 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 205 trivial. 0 not checked. [2022-11-16 16:29:16,327 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:29:16,328 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [101268472] [2022-11-16 16:29:16,328 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [101268472] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:29:16,328 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:29:16,328 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 16:29:16,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894038828] [2022-11-16 16:29:16,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:29:16,329 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 16:29:16,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:29:16,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 16:29:16,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 16:29:16,330 INFO L87 Difference]: Start difference. First operand 35219 states and 53763 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) [2022-11-16 16:29:18,574 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:29:21,801 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:29:25,485 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-16 16:29:28,491 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:29:31,403 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:29:34,272 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:29:36,344 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:29:38,876 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:29:42,383 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-16 16:29:44,149 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:29:49,490 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:29:51,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:29:51,170 INFO L93 Difference]: Finished difference Result 35237 states and 53780 transitions. [2022-11-16 16:29:51,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 16:29:51,173 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 [2022-11-16 16:29:51,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:29:51,386 INFO L225 Difference]: With dead ends: 35237 [2022-11-16 16:29:51,387 INFO L226 Difference]: Without dead ends: 35234 [2022-11-16 16:29:51,415 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 [2022-11-16 16:29:51,419 INFO L413 NwaCegarLoop]: 10178 mSDtfsCounter, 9067 mSDsluCounter, 8385 mSDsCounter, 0 mSdLazyCounter, 1556 mSolverCounterSat, 1 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9085 SdHoareTripleChecker+Valid, 18563 SdHoareTripleChecker+Invalid, 1565 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1556 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 33.8s IncrementalHoareTripleChecker+Time [2022-11-16 16:29:51,421 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9085 Valid, 18563 Invalid, 1565 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1556 Invalid, 8 Unknown, 0 Unchecked, 33.8s Time] [2022-11-16 16:29:51,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35234 states. [2022-11-16 16:29:53,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35234 to 35221. [2022-11-16 16:29:53,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35221 states, 23086 states have (on average 1.4282248982067054) internal successors, (32972), 24501 states have internal predecessors, (32972), 10365 states have call successors, (10365), 1778 states have call predecessors, (10365), 1769 states have return successors, (10428), 9762 states have call predecessors, (10428), 10353 states have call successors, (10428) [2022-11-16 16:29:53,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35221 states to 35221 states and 53765 transitions. [2022-11-16 16:29:53,679 INFO L78 Accepts]: Start accepts. Automaton has 35221 states and 53765 transitions. Word has length 146 [2022-11-16 16:29:53,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:29:53,681 INFO L495 AbstractCegarLoop]: Abstraction has 35221 states and 53765 transitions. [2022-11-16 16:29:53,681 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) [2022-11-16 16:29:53,682 INFO L276 IsEmpty]: Start isEmpty. Operand 35221 states and 53765 transitions. [2022-11-16 16:29:53,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-11-16 16:29:53,688 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:29:53,688 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] [2022-11-16 16:29:53,688 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 16:29:53,689 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 16:29:53,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:29:53,689 INFO L85 PathProgramCache]: Analyzing trace with hash 1340688364, now seen corresponding path program 1 times [2022-11-16 16:29:53,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:29:53,690 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798796329] [2022-11-16 16:29:53,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:29:53,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:29:54,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:29:54,848 INFO L134 CoverageAnalysis]: Checked inductivity of 205 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 205 trivial. 0 not checked. [2022-11-16 16:29:54,848 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:29:54,848 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798796329] [2022-11-16 16:29:54,848 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [798796329] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:29:54,848 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:29:54,849 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 16:29:54,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202231360] [2022-11-16 16:29:54,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:29:54,849 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 16:29:54,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:29:54,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 16:29:54,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 16:29:54,850 INFO L87 Difference]: Start difference. First operand 35221 states and 53765 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) [2022-11-16 16:29:57,054 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 [] [2022-11-16 16:30:00,434 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:30:04,858 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-16 16:30:09,495 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:30:12,687 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:30:15,352 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:30:18,460 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:30:20,534 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:30:28,244 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:30:29,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:30:29,876 INFO L93 Difference]: Finished difference Result 105377 states and 164468 transitions. [2022-11-16 16:30:29,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 16:30:29,879 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 [2022-11-16 16:30:29,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:30:30,513 INFO L225 Difference]: With dead ends: 105377 [2022-11-16 16:30:30,513 INFO L226 Difference]: Without dead ends: 70179 [2022-11-16 16:30:30,785 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 [2022-11-16 16:30:30,786 INFO L413 NwaCegarLoop]: 10661 mSDtfsCounter, 9305 mSDsluCounter, 8642 mSDsCounter, 0 mSdLazyCounter, 1580 mSolverCounterSat, 5 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.0s 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, 32.2s IncrementalHoareTripleChecker+Time [2022-11-16 16:30:30,786 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9314 Valid, 19303 Invalid, 1594 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5 Valid, 1580 Invalid, 9 Unknown, 0 Unchecked, 32.2s Time] [2022-11-16 16:30:30,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70179 states. [2022-11-16 16:30:34,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70179 to 70138. [2022-11-16 16:30:34,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70138 states, 46004 states have (on average 1.4286366402921484) internal successors, (65723), 48820 states have internal predecessors, (65723), 20619 states have call successors, (20619), 3540 states have call predecessors, (20619), 3514 states have return successors, (24306), 19406 states have call predecessors, (24306), 20606 states have call successors, (24306) [2022-11-16 16:30:35,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70138 states to 70138 states and 110648 transitions. [2022-11-16 16:30:35,947 INFO L78 Accepts]: Start accepts. Automaton has 70138 states and 110648 transitions. Word has length 147 [2022-11-16 16:30:35,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:30:35,947 INFO L495 AbstractCegarLoop]: Abstraction has 70138 states and 110648 transitions. [2022-11-16 16:30:35,948 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) [2022-11-16 16:30:35,948 INFO L276 IsEmpty]: Start isEmpty. Operand 70138 states and 110648 transitions. [2022-11-16 16:30:35,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-11-16 16:30:35,952 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:30:35,952 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] [2022-11-16 16:30:35,952 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 16:30:35,953 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 16:30:35,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:30:35,953 INFO L85 PathProgramCache]: Analyzing trace with hash -1391157739, now seen corresponding path program 1 times [2022-11-16 16:30:35,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:30:35,954 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642743025] [2022-11-16 16:30:35,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:30:35,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:30:36,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:30:37,175 INFO L134 CoverageAnalysis]: Checked inductivity of 205 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 205 trivial. 0 not checked. [2022-11-16 16:30:37,175 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:30:37,175 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642743025] [2022-11-16 16:30:37,175 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1642743025] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:30:37,175 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:30:37,175 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 16:30:37,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337497455] [2022-11-16 16:30:37,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:30:37,176 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 16:30:37,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:30:37,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 16:30:37,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 16:30:37,177 INFO L87 Difference]: Start difference. First operand 70138 states and 110648 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) [2022-11-16 16:30:39,384 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:30:42,754 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:30:47,543 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-16 16:30:50,469 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:30:53,823 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:30:56,483 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:31:01,018 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:31:03,123 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:31:05,470 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-16 16:31:14,644 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:31:16,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:31:16,633 INFO L93 Difference]: Finished difference Result 129607 states and 203657 transitions. [2022-11-16 16:31:16,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 16:31:16,636 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 [2022-11-16 16:31:16,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:31:17,715 INFO L225 Difference]: With dead ends: 129607 [2022-11-16 16:31:17,715 INFO L226 Difference]: Without dead ends: 129603 [2022-11-16 16:31:17,789 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 [2022-11-16 16:31:17,790 INFO L413 NwaCegarLoop]: 10612 mSDtfsCounter, 8852 mSDsluCounter, 8367 mSDsCounter, 0 mSdLazyCounter, 1604 mSolverCounterSat, 4 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8870 SdHoareTripleChecker+Valid, 18979 SdHoareTripleChecker+Invalid, 1617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1604 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 35.5s IncrementalHoareTripleChecker+Time [2022-11-16 16:31:17,791 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8870 Valid, 18979 Invalid, 1617 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4 Valid, 1604 Invalid, 9 Unknown, 0 Unchecked, 35.5s Time] [2022-11-16 16:31:17,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129603 states. [2022-11-16 16:31:24,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129603 to 129585. [2022-11-16 16:31:24,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129585 states, 84915 states have (on average 1.4267326149679092) internal successors, (121151), 90119 states have internal predecessors, (121151), 37871 states have call successors, (37871), 6836 states have call predecessors, (37871), 6798 states have return successors, (44610), 35658 states have call predecessors, (44610), 37858 states have call successors, (44610) [2022-11-16 16:31:25,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129585 states to 129585 states and 203632 transitions. [2022-11-16 16:31:25,930 INFO L78 Accepts]: Start accepts. Automaton has 129585 states and 203632 transitions. Word has length 148 [2022-11-16 16:31:25,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:31:25,931 INFO L495 AbstractCegarLoop]: Abstraction has 129585 states and 203632 transitions. [2022-11-16 16:31:25,931 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) [2022-11-16 16:31:25,931 INFO L276 IsEmpty]: Start isEmpty. Operand 129585 states and 203632 transitions. [2022-11-16 16:31:25,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-11-16 16:31:25,936 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:31:25,936 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] [2022-11-16 16:31:25,936 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 16:31:25,937 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 16:31:25,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:31:25,937 INFO L85 PathProgramCache]: Analyzing trace with hash -179036145, now seen corresponding path program 1 times [2022-11-16 16:31:25,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:31:25,938 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981593596] [2022-11-16 16:31:25,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:31:25,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:31:26,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:31:27,102 INFO L134 CoverageAnalysis]: Checked inductivity of 205 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 205 trivial. 0 not checked. [2022-11-16 16:31:27,102 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:31:27,102 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981593596] [2022-11-16 16:31:27,102 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981593596] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:31:27,102 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:31:27,103 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 16:31:27,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160666430] [2022-11-16 16:31:27,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:31:27,103 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 16:31:27,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:31:27,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 16:31:27,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 16:31:27,104 INFO L87 Difference]: Start difference. First operand 129585 states and 203632 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) [2022-11-16 16:31:29,306 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:31:32,814 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:31:37,621 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-16 16:31:40,977 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:31:44,367 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:31:46,848 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []