./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--qlogic--qlge--qlge.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95085bfd-2f33-414c-babf-d225d27bd53d/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95085bfd-2f33-414c-babf-d225d27bd53d/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95085bfd-2f33-414c-babf-d225d27bd53d/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95085bfd-2f33-414c-babf-d225d27bd53d/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--qlogic--qlge--qlge.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95085bfd-2f33-414c-babf-d225d27bd53d/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95085bfd-2f33-414c-babf-d225d27bd53d/bin/utaipan-I9t0OCRTmS --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 2c36a9df364179ddc8d27c6acbee2fb959ee84241a663b80989702c8a045d9c9 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-19 08:11:45,885 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 08:11:45,887 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 08:11:45,921 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 08:11:45,922 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 08:11:45,925 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 08:11:45,928 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 08:11:45,933 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 08:11:45,935 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 08:11:45,941 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 08:11:45,943 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 08:11:45,944 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 08:11:45,945 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 08:11:45,948 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 08:11:45,950 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 08:11:45,952 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 08:11:45,954 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 08:11:45,955 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 08:11:45,957 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 08:11:45,964 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 08:11:45,966 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 08:11:45,968 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 08:11:45,971 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 08:11:45,972 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 08:11:45,976 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 08:11:45,976 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 08:11:45,976 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 08:11:45,977 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 08:11:45,978 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 08:11:45,979 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 08:11:45,979 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 08:11:45,980 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 08:11:45,981 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 08:11:45,982 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 08:11:45,983 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 08:11:45,984 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 08:11:45,984 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 08:11:45,985 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 08:11:45,985 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 08:11:45,986 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 08:11:45,987 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 08:11:45,988 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95085bfd-2f33-414c-babf-d225d27bd53d/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-19 08:11:46,029 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 08:11:46,030 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 08:11:46,031 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 08:11:46,031 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 08:11:46,032 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 08:11:46,032 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 08:11:46,032 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 08:11:46,032 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 08:11:46,033 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 08:11:46,033 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 08:11:46,034 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 08:11:46,034 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 08:11:46,035 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 08:11:46,035 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 08:11:46,035 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 08:11:46,035 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 08:11:46,035 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 08:11:46,036 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 08:11:46,036 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 08:11:46,037 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 08:11:46,037 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 08:11:46,037 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 08:11:46,037 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 08:11:46,039 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 08:11:46,039 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 08:11:46,039 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 08:11:46,040 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 08:11:46,040 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 08:11:46,040 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 08:11:46,040 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:11:46,041 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 08:11:46,041 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 08:11:46,041 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 08:11:46,042 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 08:11:46,042 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 08:11:46,042 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 08:11:46,042 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 08:11:46,042 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 08:11:46,043 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_95085bfd-2f33-414c-babf-d225d27bd53d/bin/utaipan-I9t0OCRTmS/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95085bfd-2f33-414c-babf-d225d27bd53d/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2c36a9df364179ddc8d27c6acbee2fb959ee84241a663b80989702c8a045d9c9 [2022-11-19 08:11:46,345 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 08:11:46,375 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 08:11:46,378 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 08:11:46,379 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 08:11:46,380 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 08:11:46,382 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95085bfd-2f33-414c-babf-d225d27bd53d/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--qlogic--qlge--qlge.ko-entry_point.cil.out.i [2022-11-19 08:11:46,452 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95085bfd-2f33-414c-babf-d225d27bd53d/bin/utaipan-I9t0OCRTmS/data/c6d04b585/155f772652684ad7bc46867038fbfec2/FLAGc5e33faca [2022-11-19 08:11:47,627 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 08:11:47,628 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95085bfd-2f33-414c-babf-d225d27bd53d/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--qlogic--qlge--qlge.ko-entry_point.cil.out.i [2022-11-19 08:11:47,695 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95085bfd-2f33-414c-babf-d225d27bd53d/bin/utaipan-I9t0OCRTmS/data/c6d04b585/155f772652684ad7bc46867038fbfec2/FLAGc5e33faca [2022-11-19 08:11:47,820 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95085bfd-2f33-414c-babf-d225d27bd53d/bin/utaipan-I9t0OCRTmS/data/c6d04b585/155f772652684ad7bc46867038fbfec2 [2022-11-19 08:11:47,824 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 08:11:47,826 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 08:11:47,830 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 08:11:47,830 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 08:11:47,834 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 08:11:47,836 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:11:47" (1/1) ... [2022-11-19 08:11:47,837 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23f011e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:11:47, skipping insertion in model container [2022-11-19 08:11:47,838 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:11:47" (1/1) ... [2022-11-19 08:11:47,845 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 08:11:48,092 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 08:11:50,313 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95085bfd-2f33-414c-babf-d225d27bd53d/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--qlogic--qlge--qlge.ko-entry_point.cil.out.i[222866,222879] [2022-11-19 08:11:53,823 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:11:53,933 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 08:11:54,153 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95085bfd-2f33-414c-babf-d225d27bd53d/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--qlogic--qlge--qlge.ko-entry_point.cil.out.i[222866,222879] [2022-11-19 08:11:54,777 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:11:55,211 INFO L208 MainTranslator]: Completed translation [2022-11-19 08:11:55,212 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:11:55 WrapperNode [2022-11-19 08:11:55,212 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 08:11:55,214 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 08:11:55,215 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 08:11:55,215 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 08:11:55,223 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:11:55" (1/1) ... [2022-11-19 08:11:55,433 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:11:55" (1/1) ... [2022-11-19 08:11:55,879 INFO L138 Inliner]: procedures = 597, calls = 7272, calls flagged for inlining = 272, calls inlined = 259, statements flattened = 14827 [2022-11-19 08:11:55,880 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 08:11:55,881 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 08:11:55,881 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 08:11:55,882 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 08:11:55,894 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:11:55" (1/1) ... [2022-11-19 08:11:55,894 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:11:55" (1/1) ... [2022-11-19 08:11:55,993 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:11:55" (1/1) ... [2022-11-19 08:11:55,999 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:11:55" (1/1) ... [2022-11-19 08:11:56,445 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:11:55" (1/1) ... [2022-11-19 08:11:56,516 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:11:55" (1/1) ... [2022-11-19 08:11:56,574 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:11:55" (1/1) ... [2022-11-19 08:11:56,697 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:11:55" (1/1) ... [2022-11-19 08:11:56,818 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 08:11:56,821 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 08:11:56,821 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 08:11:56,821 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 08:11:56,822 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:11:55" (1/1) ... [2022-11-19 08:11:56,830 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:11:56,844 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95085bfd-2f33-414c-babf-d225d27bd53d/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:11:56,861 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95085bfd-2f33-414c-babf-d225d27bd53d/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 08:11:56,873 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95085bfd-2f33-414c-babf-d225d27bd53d/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 08:11:56,912 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-11-19 08:11:56,913 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-11-19 08:11:56,913 INFO L130 BoogieDeclarations]: Found specification of procedure ipv6_hdr [2022-11-19 08:11:56,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ipv6_hdr [2022-11-19 08:11:56,913 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2022-11-19 08:11:56,913 INFO L130 BoogieDeclarations]: Found specification of procedure ql_free_irq [2022-11-19 08:11:56,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_free_irq [2022-11-19 08:11:56,914 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2022-11-19 08:11:56,914 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2022-11-19 08:11:56,914 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_page [2022-11-19 08:11:56,915 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_page [2022-11-19 08:11:56,915 INFO L130 BoogieDeclarations]: Found specification of procedure ql_enable_completion_interrupt [2022-11-19 08:11:56,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_enable_completion_interrupt [2022-11-19 08:11:56,915 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-19 08:11:56,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-19 08:11:56,916 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_both_serdes [2022-11-19 08:11:56,916 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_both_serdes [2022-11-19 08:11:56,916 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_xgmac_reg [2022-11-19 08:11:56,916 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_xgmac_reg [2022-11-19 08:11:56,916 INFO L130 BoogieDeclarations]: Found specification of procedure ql_adapter_reset [2022-11-19 08:11:56,917 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_adapter_reset [2022-11-19 08:11:56,917 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap_nocache [2022-11-19 08:11:56,917 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap_nocache [2022-11-19 08:11:56,917 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2022-11-19 08:11:56,917 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2022-11-19 08:11:56,918 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-11-19 08:11:56,918 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-11-19 08:11:56,918 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_sync_single_for_cpu [2022-11-19 08:11:56,918 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_sync_single_for_cpu [2022-11-19 08:11:56,919 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_send [2022-11-19 08:11:56,919 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_send [2022-11-19 08:11:56,919 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_page [2022-11-19 08:11:56,919 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_page [2022-11-19 08:11:56,919 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2022-11-19 08:11:56,920 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2022-11-19 08:11:56,920 INFO L130 BoogieDeclarations]: Found specification of procedure netif_napi_del [2022-11-19 08:11:56,920 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_napi_del [2022-11-19 08:11:56,921 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-19 08:11:56,921 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-19 08:11:56,921 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2022-11-19 08:11:56,921 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2022-11-19 08:11:56,922 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-19 08:11:56,922 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-19 08:11:56,922 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_regs_len [2022-11-19 08:11:56,923 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_regs_len [2022-11-19 08:11:56,923 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_vlan_rx_kill_vid [2022-11-19 08:11:56,923 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_vlan_rx_kill_vid [2022-11-19 08:11:56,923 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-19 08:11:56,924 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-19 08:11:56,925 INFO L130 BoogieDeclarations]: Found specification of procedure PageTail [2022-11-19 08:11:56,926 INFO L138 BoogieDeclarations]: Found implementation of procedure PageTail [2022-11-19 08:11:56,926 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_shutdown [2022-11-19 08:11:56,927 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_shutdown [2022-11-19 08:11:56,927 INFO L130 BoogieDeclarations]: Found specification of procedure ql_release_all [2022-11-19 08:11:56,927 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_release_all [2022-11-19 08:11:56,927 INFO L130 BoogieDeclarations]: Found specification of procedure ql_update_mac_hdr_len [2022-11-19 08:11:56,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_update_mac_hdr_len [2022-11-19 08:11:56,928 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mailbox_command [2022-11-19 08:11:56,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mailbox_command [2022-11-19 08:11:56,929 INFO L130 BoogieDeclarations]: Found specification of procedure skb_checksum_none_assert [2022-11-19 08:11:56,929 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_checksum_none_assert [2022-11-19 08:11:56,930 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-19 08:11:56,930 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-19 08:11:56,930 INFO L130 BoogieDeclarations]: Found specification of procedure ql_set_irq_mask [2022-11-19 08:11:56,930 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_set_irq_mask [2022-11-19 08:11:56,930 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-19 08:11:56,931 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-19 08:11:56,931 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-11-19 08:11:56,931 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-11-19 08:11:56,931 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netdev_alloc_skb_14 [2022-11-19 08:11:56,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netdev_alloc_skb_14 [2022-11-19 08:11:56,932 INFO L130 BoogieDeclarations]: Found specification of procedure ql_dump_risc_ram_area [2022-11-19 08:11:56,932 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_dump_risc_ram_area [2022-11-19 08:11:56,932 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-19 08:11:56,932 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-19 08:11:56,933 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u32 [2022-11-19 08:11:56,934 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_other_func_reg [2022-11-19 08:11:56,934 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_other_func_reg [2022-11-19 08:11:56,934 INFO L130 BoogieDeclarations]: Found specification of procedure __qlge_vlan_rx_add_vid [2022-11-19 08:11:56,934 INFO L138 BoogieDeclarations]: Found implementation of procedure __qlge_vlan_rx_add_vid [2022-11-19 08:11:56,934 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-11-19 08:11:56,935 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-11-19 08:11:56,936 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2022-11-19 08:11:56,936 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2022-11-19 08:11:56,936 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 08:11:56,936 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-11-19 08:11:56,936 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-11-19 08:11:56,937 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_xgmac_regs [2022-11-19 08:11:56,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_xgmac_regs [2022-11-19 08:11:56,938 INFO L130 BoogieDeclarations]: Found specification of procedure ql_queue_asic_error [2022-11-19 08:11:56,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_queue_asic_error [2022-11-19 08:11:56,939 INFO L130 BoogieDeclarations]: Found specification of procedure ql_update_buffer_queues [2022-11-19 08:11:56,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_update_buffer_queues [2022-11-19 08:11:56,940 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_cam_entries [2022-11-19 08:11:56,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_cam_entries [2022-11-19 08:11:56,940 INFO L130 BoogieDeclarations]: Found specification of procedure ql_free_mem_resources [2022-11-19 08:11:56,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_free_mem_resources [2022-11-19 08:11:56,941 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_xgmac_reg [2022-11-19 08:11:56,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_xgmac_reg [2022-11-19 08:11:56,941 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2022-11-19 08:11:56,941 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2022-11-19 08:11:56,941 INFO L130 BoogieDeclarations]: Found specification of procedure ql_adapter_up [2022-11-19 08:11:56,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_adapter_up [2022-11-19 08:11:56,942 INFO L130 BoogieDeclarations]: Found specification of procedure ql_eeh_close [2022-11-19 08:11:56,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_eeh_close [2022-11-19 08:11:56,943 INFO L130 BoogieDeclarations]: Found specification of procedure netif_receive_skb [2022-11-19 08:11:56,943 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_receive_skb [2022-11-19 08:11:56,943 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-19 08:11:56,943 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-19 08:11:56,944 INFO L130 BoogieDeclarations]: Found specification of procedure ql_set_mac_addr_reg [2022-11-19 08:11:56,945 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_set_mac_addr_reg [2022-11-19 08:11:56,948 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-19 08:11:56,948 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-19 08:11:56,948 INFO L130 BoogieDeclarations]: Found specification of procedure skb_record_rx_queue [2022-11-19 08:11:56,949 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_record_rx_queue [2022-11-19 08:11:56,949 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_consistent_dma_mask [2022-11-19 08:11:56,950 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_consistent_dma_mask [2022-11-19 08:11:56,951 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-19 08:11:56,951 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_serdes_reg [2022-11-19 08:11:56,951 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_serdes_reg [2022-11-19 08:11:56,958 INFO L130 BoogieDeclarations]: Found specification of procedure pci_save_state [2022-11-19 08:11:56,958 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_save_state [2022-11-19 08:11:56,958 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-19 08:11:56,958 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-19 08:11:56,958 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-19 08:11:56,959 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-19 08:11:56,959 INFO L130 BoogieDeclarations]: Found specification of procedure ql_build_coredump_seg_header [2022-11-19 08:11:56,959 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_build_coredump_seg_header [2022-11-19 08:11:56,959 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_close [2022-11-19 08:11:56,959 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_close [2022-11-19 08:11:56,960 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_mb_sts [2022-11-19 08:11:56,960 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_mb_sts [2022-11-19 08:11:56,960 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-19 08:11:56,960 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_open [2022-11-19 08:11:56,960 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_open [2022-11-19 08:11:56,961 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-19 08:11:56,961 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-19 08:11:56,961 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-19 08:11:56,961 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headroom [2022-11-19 08:11:56,961 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headroom [2022-11-19 08:11:56,961 INFO L130 BoogieDeclarations]: Found specification of procedure reg_check_1 [2022-11-19 08:11:56,962 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_check_1 [2022-11-19 08:11:56,962 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-19 08:11:56,962 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-19 08:11:56,962 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2022-11-19 08:11:56,962 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2022-11-19 08:11:56,963 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_probe [2022-11-19 08:11:56,963 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_probe [2022-11-19 08:11:56,963 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_offset [2022-11-19 08:11:56,963 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_offset [2022-11-19 08:11:56,963 INFO L130 BoogieDeclarations]: Found specification of procedure ql_free_rx_buffers [2022-11-19 08:11:56,963 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_free_rx_buffers [2022-11-19 08:11:56,964 INFO L130 BoogieDeclarations]: Found specification of procedure dev_close [2022-11-19 08:11:56,964 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_close [2022-11-19 08:11:56,964 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2022-11-19 08:11:56,964 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2022-11-19 08:11:56,964 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write32 [2022-11-19 08:11:56,965 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write32 [2022-11-19 08:11:56,965 INFO L130 BoogieDeclarations]: Found specification of procedure ql_cam_route_initialize [2022-11-19 08:11:56,965 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_cam_route_initialize [2022-11-19 08:11:56,965 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-11-19 08:11:56,965 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-11-19 08:11:56,966 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-19 08:11:56,966 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-19 08:11:56,966 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u16 [2022-11-19 08:11:56,966 INFO L130 BoogieDeclarations]: Found specification of procedure ql_wait_other_func_reg_rdy [2022-11-19 08:11:56,966 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_wait_other_func_reg_rdy [2022-11-19 08:11:56,966 INFO L130 BoogieDeclarations]: Found specification of procedure ql_sem_trylock [2022-11-19 08:11:56,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_sem_trylock [2022-11-19 08:11:56,967 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mb_set_port_cfg [2022-11-19 08:11:56,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mb_set_port_cfg [2022-11-19 08:11:56,967 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-19 08:11:56,967 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_mpi_reg [2022-11-19 08:11:56,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_mpi_reg [2022-11-19 08:11:56,968 INFO L130 BoogieDeclarations]: Found specification of procedure __get_order [2022-11-19 08:11:56,968 INFO L138 BoogieDeclarations]: Found implementation of procedure __get_order [2022-11-19 08:11:56,968 INFO L130 BoogieDeclarations]: Found specification of procedure ql_sem_spinlock [2022-11-19 08:11:56,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_sem_spinlock [2022-11-19 08:11:56,968 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 08:11:56,969 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2022-11-19 08:11:56,970 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2022-11-19 08:11:56,970 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_get_stats [2022-11-19 08:11:56,970 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_get_stats [2022-11-19 08:11:56,970 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-19 08:11:56,970 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-19 08:11:56,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-19 08:11:56,971 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-19 08:11:56,971 INFO L130 BoogieDeclarations]: Found specification of procedure ql_sem_unlock [2022-11-19 08:11:56,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_sem_unlock [2022-11-19 08:11:56,971 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_8012_flash_params [2022-11-19 08:11:56,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_8012_flash_params [2022-11-19 08:11:56,972 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-19 08:11:56,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-19 08:11:56,972 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_io_slot_reset [2022-11-19 08:11:56,972 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_io_slot_reset [2022-11-19 08:11:56,972 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-11-19 08:11:56,973 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-11-19 08:11:56,973 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_other_func_serdes_reg [2022-11-19 08:11:56,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_other_func_serdes_reg [2022-11-19 08:11:56,973 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-11-19 08:11:56,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-11-19 08:11:56,973 INFO L130 BoogieDeclarations]: Found specification of procedure ql_disable_completion_interrupt [2022-11-19 08:11:56,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_disable_completion_interrupt [2022-11-19 08:11:56,974 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_fill_page_desc [2022-11-19 08:11:56,974 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_fill_page_desc [2022-11-19 08:11:56,974 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-11-19 08:11:56,974 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-11-19 08:11:56,975 INFO L130 BoogieDeclarations]: Found specification of procedure ql_clear_routing_entries [2022-11-19 08:11:56,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_clear_routing_entries [2022-11-19 08:11:56,975 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2022-11-19 08:11:56,975 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2022-11-19 08:11:56,975 INFO L130 BoogieDeclarations]: Found specification of procedure ql_link_off [2022-11-19 08:11:56,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_link_off [2022-11-19 08:11:56,976 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-19 08:11:56,976 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-19 08:11:56,976 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-11-19 08:11:56,976 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-11-19 08:11:56,976 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2022-11-19 08:11:56,977 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2022-11-19 08:11:56,977 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_tx_timeout [2022-11-19 08:11:56,977 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_tx_timeout [2022-11-19 08:11:56,977 INFO L130 BoogieDeclarations]: Found specification of procedure ql_8000_port_initialize [2022-11-19 08:11:56,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_8000_port_initialize [2022-11-19 08:11:56,977 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work [2022-11-19 08:11:56,978 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work [2022-11-19 08:11:56,978 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_mpi_regs [2022-11-19 08:11:56,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_mpi_regs [2022-11-19 08:11:56,978 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-11-19 08:11:56,978 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-11-19 08:11:56,979 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-19 08:11:56,979 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-19 08:11:56,979 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_set_mac_address [2022-11-19 08:11:56,979 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_set_mac_address [2022-11-19 08:11:56,979 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 08:11:56,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 08:11:56,980 INFO L130 BoogieDeclarations]: Found specification of procedure ql_8012_port_initialize [2022-11-19 08:11:56,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_8012_port_initialize [2022-11-19 08:11:56,981 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdr [2022-11-19 08:11:56,985 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdr [2022-11-19 08:11:56,986 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_flash_word [2022-11-19 08:11:56,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_flash_word [2022-11-19 08:11:56,986 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_subqueue [2022-11-19 08:11:56,986 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_subqueue [2022-11-19 08:11:56,986 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-11-19 08:11:56,986 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-11-19 08:11:56,987 INFO L130 BoogieDeclarations]: Found specification of procedure ql_release_adapter_resources [2022-11-19 08:11:56,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_release_adapter_resources [2022-11-19 08:11:56,988 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-19 08:11:56,989 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-19 08:11:56,989 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-19 08:11:56,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-19 08:11:56,990 INFO L130 BoogieDeclarations]: Found specification of procedure csum_tcpudp_magic [2022-11-19 08:11:56,990 INFO L138 BoogieDeclarations]: Found implementation of procedure csum_tcpudp_magic [2022-11-19 08:11:56,990 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work_sync [2022-11-19 08:11:56,990 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work_sync [2022-11-19 08:11:56,990 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2022-11-19 08:11:56,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2022-11-19 08:11:56,991 INFO L130 BoogieDeclarations]: Found specification of procedure ql_free_rx_resources [2022-11-19 08:11:56,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_free_rx_resources [2022-11-19 08:11:56,991 INFO L130 BoogieDeclarations]: Found specification of procedure napi_schedule [2022-11-19 08:11:56,991 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_schedule [2022-11-19 08:11:56,991 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2022-11-19 08:11:56,992 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2022-11-19 08:11:56,992 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-11-19 08:11:56,992 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-11-19 08:11:56,992 INFO L130 BoogieDeclarations]: Found specification of procedure ql_disable_interrupts [2022-11-19 08:11:56,992 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_disable_interrupts [2022-11-19 08:11:56,992 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2022-11-19 08:11:56,993 INFO L130 BoogieDeclarations]: Found specification of procedure ql_soft_reset_mpi_risc [2022-11-19 08:11:56,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_soft_reset_mpi_risc [2022-11-19 08:11:56,993 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2022-11-19 08:11:56,993 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2022-11-19 08:11:56,993 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_remove [2022-11-19 08:11:56,993 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_remove [2022-11-19 08:11:56,994 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_cq_idx [2022-11-19 08:11:56,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_cq_idx [2022-11-19 08:11:56,994 INFO L130 BoogieDeclarations]: Found specification of procedure ql_link_on [2022-11-19 08:11:56,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_link_on [2022-11-19 08:11:56,994 INFO L130 BoogieDeclarations]: Found specification of procedure napi_gro_receive [2022-11-19 08:11:56,995 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_gro_receive [2022-11-19 08:11:56,995 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_set_multicast_list [2022-11-19 08:11:56,995 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_set_multicast_list [2022-11-19 08:11:56,995 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-19 08:11:56,995 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-19 08:11:56,995 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-19 08:11:56,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-19 08:11:56,996 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_4 [2022-11-19 08:11:56,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_4 [2022-11-19 08:11:56,996 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work_on [2022-11-19 08:11:56,996 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work_on [2022-11-19 08:11:56,996 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-11-19 08:11:56,997 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-11-19 08:11:56,997 INFO L130 BoogieDeclarations]: Found specification of procedure ip_hdr [2022-11-19 08:11:56,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ip_hdr [2022-11-19 08:11:56,997 INFO L130 BoogieDeclarations]: Found specification of procedure ql_tx_ring_clean [2022-11-19 08:11:56,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_tx_ring_clean [2022-11-19 08:11:56,997 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-11-19 08:11:56,998 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-11-19 08:11:56,998 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-19 08:11:56,998 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-19 08:11:56,998 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_irq_1 [2022-11-19 08:11:56,998 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_irq_1 [2022-11-19 08:11:56,999 INFO L130 BoogieDeclarations]: Found specification of procedure skb_fill_page_desc [2022-11-19 08:11:56,999 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_fill_page_desc [2022-11-19 08:11:56,999 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-19 08:11:56,999 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-19 08:11:56,999 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_mpi_reg [2022-11-19 08:11:56,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_mpi_reg [2022-11-19 08:11:57,000 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2022-11-19 08:11:57,000 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2022-11-19 08:11:57,000 INFO L130 BoogieDeclarations]: Found specification of procedure ql_clean_inbound_rx_ring [2022-11-19 08:11:57,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_clean_inbound_rx_ring [2022-11-19 08:11:57,000 INFO L130 BoogieDeclarations]: Found specification of procedure ql_update_cq [2022-11-19 08:11:57,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_update_cq [2022-11-19 08:11:57,001 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2022-11-19 08:11:57,001 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2022-11-19 08:11:57,001 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_subqueue [2022-11-19 08:11:57,001 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_subqueue [2022-11-19 08:11:57,001 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2022-11-19 08:11:57,002 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2022-11-19 08:11:57,002 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_set_features [2022-11-19 08:11:57,002 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_set_features [2022-11-19 08:11:57,002 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 08:11:57,002 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-19 08:11:57,002 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-19 08:11:57,003 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_curr_sbuf [2022-11-19 08:11:57,003 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_curr_sbuf [2022-11-19 08:11:57,003 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2022-11-19 08:11:57,003 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2022-11-19 08:11:57,003 INFO L130 BoogieDeclarations]: Found specification of procedure ql_realign_skb [2022-11-19 08:11:57,003 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_realign_skb [2022-11-19 08:11:57,004 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-19 08:11:57,004 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-19 08:11:57,004 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_io_error_detected [2022-11-19 08:11:57,004 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_io_error_detected [2022-11-19 08:11:57,004 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_routing_entries [2022-11-19 08:11:57,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_routing_entries [2022-11-19 08:11:57,005 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-19 08:11:57,005 INFO L130 BoogieDeclarations]: Found specification of procedure put_page [2022-11-19 08:11:57,005 INFO L138 BoogieDeclarations]: Found implementation of procedure put_page [2022-11-19 08:11:57,005 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2022-11-19 08:11:57,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2022-11-19 08:11:57,006 INFO L130 BoogieDeclarations]: Found specification of procedure ql_process_mac_split_rx_intr [2022-11-19 08:11:57,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_process_mac_split_rx_intr [2022-11-19 08:11:57,006 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_suspend [2022-11-19 08:11:57,006 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_suspend [2022-11-19 08:11:57,006 INFO L130 BoogieDeclarations]: Found specification of procedure __pskb_pull_tail [2022-11-19 08:11:57,006 INFO L138 BoogieDeclarations]: Found implementation of procedure __pskb_pull_tail [2022-11-19 08:11:57,007 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2022-11-19 08:11:57,007 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2022-11-19 08:11:57,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-19 08:11:57,007 INFO L130 BoogieDeclarations]: Found specification of procedure __vlan_hwaccel_put_tag [2022-11-19 08:11:57,007 INFO L138 BoogieDeclarations]: Found implementation of procedure __vlan_hwaccel_put_tag [2022-11-19 08:11:57,007 INFO L130 BoogieDeclarations]: Found specification of procedure ql_validate_flash [2022-11-19 08:11:57,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_validate_flash [2022-11-19 08:11:57,008 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2022-11-19 08:11:57,008 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2022-11-19 08:11:57,008 INFO L130 BoogieDeclarations]: Found specification of procedure ql_cancel_all_work_sync [2022-11-19 08:11:57,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_cancel_all_work_sync [2022-11-19 08:11:57,009 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-11-19 08:11:57,009 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-11-19 08:11:57,009 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-19 08:11:57,009 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-19 08:11:57,009 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-11-19 08:11:57,009 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-11-19 08:11:57,010 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_8000_flash_params [2022-11-19 08:11:57,010 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_8000_flash_params [2022-11-19 08:11:57,010 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-19 08:11:57,010 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-19 08:11:57,010 INFO L130 BoogieDeclarations]: Found specification of procedure ql_check_lb_frame [2022-11-19 08:11:57,010 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_check_lb_frame [2022-11-19 08:11:57,011 INFO L130 BoogieDeclarations]: Found specification of procedure pci_restore_state [2022-11-19 08:11:57,011 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_restore_state [2022-11-19 08:11:57,011 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc_array [2022-11-19 08:11:57,011 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc_array [2022-11-19 08:11:57,012 INFO L130 BoogieDeclarations]: Found specification of procedure ql_categorize_rx_err [2022-11-19 08:11:57,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_categorize_rx_err [2022-11-19 08:11:57,013 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2022-11-19 08:11:57,013 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2022-11-19 08:11:57,013 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-19 08:11:57,013 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-19 08:11:57,013 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2022-11-19 08:11:57,014 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2022-11-19 08:11:57,014 INFO L130 BoogieDeclarations]: Found specification of procedure ql_adapter_initialize [2022-11-19 08:11:57,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_adapter_initialize [2022-11-19 08:11:57,014 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2022-11-19 08:11:57,014 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2022-11-19 08:11:57,014 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2022-11-19 08:11:57,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2022-11-19 08:11:57,015 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_sh_reg [2022-11-19 08:11:57,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_sh_reg [2022-11-19 08:11:57,015 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_offset [2022-11-19 08:11:57,015 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_offset [2022-11-19 08:11:57,015 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-19 08:11:57,016 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-19 08:11:57,016 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2022-11-19 08:11:57,016 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2022-11-19 08:11:57,016 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_db_reg [2022-11-19 08:11:57,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_db_reg [2022-11-19 08:11:57,017 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-19 08:11:57,017 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-19 08:11:57,017 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mb_get_port_cfg [2022-11-19 08:11:57,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mb_get_port_cfg [2022-11-19 08:11:57,017 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_vlan_rx_add_vid [2022-11-19 08:11:57,017 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_vlan_rx_add_vid [2022-11-19 08:11:57,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 08:11:57,018 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2022-11-19 08:11:57,018 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2022-11-19 08:11:57,018 INFO L130 BoogieDeclarations]: Found specification of procedure eth_type_trans [2022-11-19 08:11:57,018 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_type_trans [2022-11-19 08:11:57,018 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-19 08:11:57,019 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-19 08:11:57,019 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_change_mtu [2022-11-19 08:11:57,019 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_change_mtu [2022-11-19 08:11:57,019 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_fix_features [2022-11-19 08:11:57,019 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_fix_features [2022-11-19 08:11:57,019 INFO L130 BoogieDeclarations]: Found specification of procedure ql_adapter_down [2022-11-19 08:11:57,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_adapter_down [2022-11-19 08:11:57,020 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-19 08:11:57,020 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-19 08:11:57,020 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2022-11-19 08:11:57,020 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2022-11-19 08:11:57,020 INFO L130 BoogieDeclarations]: Found specification of procedure ql_queue_fw_error [2022-11-19 08:11:57,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_queue_fw_error [2022-11-19 08:11:57,021 INFO L130 BoogieDeclarations]: Found specification of procedure ql_unmap_send [2022-11-19 08:11:57,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_unmap_send [2022-11-19 08:11:57,021 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-11-19 08:11:57,021 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-11-19 08:11:57,021 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mpi_handler [2022-11-19 08:11:57,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mpi_handler [2022-11-19 08:11:57,022 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_xgmac_reg64 [2022-11-19 08:11:57,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_xgmac_reg64 [2022-11-19 08:11:57,022 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2022-11-19 08:11:57,022 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2022-11-19 08:11:57,022 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mb_set_mgmnt_traffic_ctl [2022-11-19 08:11:57,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mb_set_mgmnt_traffic_ctl [2022-11-19 08:11:57,023 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_other_func_reg [2022-11-19 08:11:57,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_other_func_reg [2022-11-19 08:11:57,023 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2022-11-19 08:11:57,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2022-11-19 08:11:57,023 INFO L130 BoogieDeclarations]: Found specification of procedure ql_wait_reg_rdy [2022-11-19 08:11:57,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_wait_reg_rdy [2022-11-19 08:11:57,024 INFO L130 BoogieDeclarations]: Found specification of procedure ql_set_routing_reg [2022-11-19 08:11:57,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_set_routing_reg [2022-11-19 08:11:57,024 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2022-11-19 08:11:57,024 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2022-11-19 08:11:57,025 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2022-11-19 08:11:57,025 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2022-11-19 08:11:57,025 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mb_set_led_cfg [2022-11-19 08:11:57,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mb_set_led_cfg [2022-11-19 08:11:57,025 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_cfg [2022-11-19 08:11:57,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_cfg [2022-11-19 08:11:57,026 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_mac_addr_reg [2022-11-19 08:11:57,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_mac_addr_reg [2022-11-19 08:11:57,026 INFO L130 BoogieDeclarations]: Found specification of procedure ql_lbq_block_size [2022-11-19 08:11:57,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_lbq_block_size [2022-11-19 08:11:57,026 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2022-11-19 08:11:57,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2022-11-19 08:11:57,027 INFO L130 BoogieDeclarations]: Found specification of procedure ql_own_firmware [2022-11-19 08:11:57,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_own_firmware [2022-11-19 08:11:57,027 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2022-11-19 08:11:57,027 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2022-11-19 08:11:57,027 INFO L130 BoogieDeclarations]: Found specification of procedure netif_get_num_default_rss_queues [2022-11-19 08:11:57,027 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_get_num_default_rss_queues [2022-11-19 08:11:57,028 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_curr_lchunk [2022-11-19 08:11:57,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_curr_lchunk [2022-11-19 08:11:57,028 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_ets_regs [2022-11-19 08:11:57,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_ets_regs [2022-11-19 08:11:57,028 INFO L130 BoogieDeclarations]: Found specification of procedure ql_wait_cfg [2022-11-19 08:11:57,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_wait_cfg [2022-11-19 08:11:57,029 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2022-11-19 08:11:57,029 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2022-11-19 08:11:57,029 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-19 08:11:57,029 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-19 08:11:57,029 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 08:11:57,029 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read32 [2022-11-19 08:11:57,030 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read32 [2022-11-19 08:11:57,030 INFO L130 BoogieDeclarations]: Found specification of procedure ql_set_mac_addr [2022-11-19 08:11:57,030 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_set_mac_addr [2022-11-19 08:11:57,030 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_intr_states [2022-11-19 08:11:57,030 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_intr_states [2022-11-19 08:11:57,030 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_sync_single_for_device [2022-11-19 08:11:57,035 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_sync_single_for_device [2022-11-19 08:11:57,035 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_resume [2022-11-19 08:11:57,035 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_resume [2022-11-19 08:11:57,035 INFO L130 BoogieDeclarations]: Found specification of procedure ql_core_dump [2022-11-19 08:11:57,036 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_core_dump [2022-11-19 08:11:58,815 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 08:11:58,820 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 08:11:59,005 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-19 08:12:25,083 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 08:12:33,453 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 08:12:33,454 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-19 08:12:33,467 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:12:33 BoogieIcfgContainer [2022-11-19 08:12:33,468 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 08:12:33,472 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 08:12:33,472 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 08:12:33,476 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 08:12:33,477 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:11:47" (1/3) ... [2022-11-19 08:12:33,478 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ddff13f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:12:33, skipping insertion in model container [2022-11-19 08:12:33,478 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:11:55" (2/3) ... [2022-11-19 08:12:33,480 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ddff13f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:12:33, skipping insertion in model container [2022-11-19 08:12:33,480 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:12:33" (3/3) ... [2022-11-19 08:12:33,482 INFO L112 eAbstractionObserver]: Analyzing ICFG 205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--qlogic--qlge--qlge.ko-entry_point.cil.out.i [2022-11-19 08:12:33,504 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 08:12:33,504 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 08:12:33,681 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 08:12:33,692 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;@6eba19fa, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 08:12:33,694 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 08:12:33,712 INFO L276 IsEmpty]: Start isEmpty. Operand has 3688 states, 2258 states have (on average 1.3352524357838795) internal successors, (3015), 2332 states have internal predecessors, (3015), 1196 states have call successors, (1196), 233 states have call predecessors, (1196), 232 states have return successors, (1186), 1171 states have call predecessors, (1186), 1186 states have call successors, (1186) [2022-11-19 08:12:33,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-11-19 08:12:33,730 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:12:33,731 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:12:33,732 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:12:33,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:12:33,738 INFO L85 PathProgramCache]: Analyzing trace with hash -1091557860, now seen corresponding path program 1 times [2022-11-19 08:12:33,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:12:33,749 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945094728] [2022-11-19 08:12:33,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:12:33,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:12:34,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:12:35,473 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2022-11-19 08:12:35,473 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:12:35,474 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945094728] [2022-11-19 08:12:35,480 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1945094728] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:12:35,480 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:12:35,480 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:12:35,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475147836] [2022-11-19 08:12:35,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:12:35,490 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:12:35,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:12:35,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:12:35,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:12:35,551 INFO L87 Difference]: Start difference. First operand has 3688 states, 2258 states have (on average 1.3352524357838795) internal successors, (3015), 2332 states have internal predecessors, (3015), 1196 states have call successors, (1196), 233 states have call predecessors, (1196), 232 states have return successors, (1186), 1171 states have call predecessors, (1186), 1186 states have call successors, (1186) Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2022-11-19 08:12:36,897 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:12:38,936 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:12:41,381 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:12:43,251 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:12:47,446 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:12:49,999 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:12:51,643 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:12:53,687 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:12:59,940 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:13:01,956 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:13:06,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:13:06,161 INFO L93 Difference]: Finished difference Result 10997 states and 16198 transitions. [2022-11-19 08:13:06,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:13:06,165 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 64 [2022-11-19 08:13:06,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:13:06,274 INFO L225 Difference]: With dead ends: 10997 [2022-11-19 08:13:06,275 INFO L226 Difference]: Without dead ends: 7286 [2022-11-19 08:13:06,319 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:13:06,330 INFO L413 NwaCegarLoop]: 6157 mSDtfsCounter, 5313 mSDsluCounter, 4772 mSDsCounter, 0 mSdLazyCounter, 1276 mSolverCounterSat, 9 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5315 SdHoareTripleChecker+Valid, 10929 SdHoareTripleChecker+Invalid, 1290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1276 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.7s IncrementalHoareTripleChecker+Time [2022-11-19 08:13:06,331 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5315 Valid, 10929 Invalid, 1290 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 1276 Invalid, 5 Unknown, 0 Unchecked, 29.7s Time] [2022-11-19 08:13:06,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7286 states. [2022-11-19 08:13:06,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7286 to 7285. [2022-11-19 08:13:06,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7285 states, 4469 states have (on average 1.3269187737748938) internal successors, (5930), 4594 states have internal predecessors, (5930), 2353 states have call successors, (2353), 463 states have call predecessors, (2353), 462 states have return successors, (2354), 2321 states have call predecessors, (2354), 2352 states have call successors, (2354) [2022-11-19 08:13:07,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7285 states to 7285 states and 10637 transitions. [2022-11-19 08:13:07,009 INFO L78 Accepts]: Start accepts. Automaton has 7285 states and 10637 transitions. Word has length 64 [2022-11-19 08:13:07,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:13:07,010 INFO L495 AbstractCegarLoop]: Abstraction has 7285 states and 10637 transitions. [2022-11-19 08:13:07,010 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2022-11-19 08:13:07,011 INFO L276 IsEmpty]: Start isEmpty. Operand 7285 states and 10637 transitions. [2022-11-19 08:13:07,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-11-19 08:13:07,026 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:13:07,027 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:13:07,028 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 08:13:07,028 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:13:07,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:13:07,029 INFO L85 PathProgramCache]: Analyzing trace with hash -293205619, now seen corresponding path program 1 times [2022-11-19 08:13:07,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:13:07,030 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123765616] [2022-11-19 08:13:07,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:13:07,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:13:07,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:13:08,886 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2022-11-19 08:13:08,887 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:13:08,887 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123765616] [2022-11-19 08:13:08,887 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [123765616] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:13:08,887 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:13:08,887 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 08:13:08,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982301754] [2022-11-19 08:13:08,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:13:08,889 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:13:08,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:13:08,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:13:08,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:13:08,890 INFO L87 Difference]: Start difference. First operand 7285 states and 10637 transitions. Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 3 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-19 08:13:10,982 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:13:13,009 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:13:15,515 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:13:17,945 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:13:24,548 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:13:27,796 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:13:29,813 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:13:35,200 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:13:40,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:13:40,216 INFO L93 Difference]: Finished difference Result 14508 states and 21279 transitions. [2022-11-19 08:13:40,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:13:40,217 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 3 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 67 [2022-11-19 08:13:40,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:13:40,337 INFO L225 Difference]: With dead ends: 14508 [2022-11-19 08:13:40,337 INFO L226 Difference]: Without dead ends: 14503 [2022-11-19 08:13:40,351 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:13:40,352 INFO L413 NwaCegarLoop]: 6209 mSDtfsCounter, 5278 mSDsluCounter, 10969 mSDsCounter, 0 mSdLazyCounter, 1947 mSolverCounterSat, 1 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5278 SdHoareTripleChecker+Valid, 17178 SdHoareTripleChecker+Invalid, 1954 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1947 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.6s IncrementalHoareTripleChecker+Time [2022-11-19 08:13:40,353 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5278 Valid, 17178 Invalid, 1954 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1947 Invalid, 6 Unknown, 0 Unchecked, 30.6s Time] [2022-11-19 08:13:40,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14503 states. [2022-11-19 08:13:41,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14503 to 14492. [2022-11-19 08:13:41,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14492 states, 8880 states have (on average 1.3268018018018017) internal successors, (11782), 9133 states have internal predecessors, (11782), 4687 states have call successors, (4687), 925 states have call predecessors, (4687), 924 states have return successors, (4790), 4621 states have call predecessors, (4790), 4686 states have call successors, (4790) [2022-11-19 08:13:41,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14492 states to 14492 states and 21259 transitions. [2022-11-19 08:13:41,396 INFO L78 Accepts]: Start accepts. Automaton has 14492 states and 21259 transitions. Word has length 67 [2022-11-19 08:13:41,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:13:41,397 INFO L495 AbstractCegarLoop]: Abstraction has 14492 states and 21259 transitions. [2022-11-19 08:13:41,397 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 3 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-19 08:13:41,398 INFO L276 IsEmpty]: Start isEmpty. Operand 14492 states and 21259 transitions. [2022-11-19 08:13:41,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-11-19 08:13:41,421 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:13:41,422 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:13:41,422 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 08:13:41,423 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:13:41,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:13:41,434 INFO L85 PathProgramCache]: Analyzing trace with hash 1718647329, now seen corresponding path program 1 times [2022-11-19 08:13:41,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:13:41,434 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460756080] [2022-11-19 08:13:41,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:13:41,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:13:41,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:13:42,105 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:13:42,120 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460756080] [2022-11-19 08:13:42,121 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-19 08:13:42,121 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [922222345] [2022-11-19 08:13:42,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:13:42,122 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:13:42,122 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95085bfd-2f33-414c-babf-d225d27bd53d/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:13:42,126 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95085bfd-2f33-414c-babf-d225d27bd53d/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:13:42,134 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95085bfd-2f33-414c-babf-d225d27bd53d/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-19 08:13:45,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:13:45,607 INFO L263 TraceCheckSpWp]: Trace formula consists of 8800 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-19 08:13:45,623 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:13:45,729 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2022-11-19 08:13:45,730 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:13:45,730 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [922222345] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:13:45,730 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:13:45,731 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:13:45,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310570478] [2022-11-19 08:13:45,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:13:45,732 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:13:45,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:13:45,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:13:45,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:13:45,733 INFO L87 Difference]: Start difference. First operand 14492 states and 21259 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-19 08:13:47,082 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:13:49,356 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:13:52,559 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:13:55,777 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:13:58,675 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:14:00,689 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:14:07,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:14:07,729 INFO L93 Difference]: Finished difference Result 42555 states and 62448 transitions. [2022-11-19 08:14:07,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:14:07,730 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 153 [2022-11-19 08:14:07,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:14:07,938 INFO L225 Difference]: With dead ends: 42555 [2022-11-19 08:14:07,939 INFO L226 Difference]: Without dead ends: 28082 [2022-11-19 08:14:08,044 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:14:08,046 INFO L413 NwaCegarLoop]: 6527 mSDtfsCounter, 4966 mSDsluCounter, 4605 mSDsCounter, 0 mSdLazyCounter, 1496 mSolverCounterSat, 41 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4971 SdHoareTripleChecker+Valid, 11132 SdHoareTripleChecker+Invalid, 1541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 1496 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:14:08,046 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4971 Valid, 11132 Invalid, 1541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 1496 Invalid, 4 Unknown, 0 Unchecked, 21.0s Time] [2022-11-19 08:14:08,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28082 states. [2022-11-19 08:14:09,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28082 to 28062. [2022-11-19 08:14:09,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28062 states, 17218 states have (on average 1.3241375304913463) internal successors, (22799), 17743 states have internal predecessors, (22799), 9035 states have call successors, (9035), 1813 states have call predecessors, (9035), 1808 states have return successors, (9236), 8881 states have call predecessors, (9236), 9034 states have call successors, (9236) [2022-11-19 08:14:09,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28062 states to 28062 states and 41070 transitions. [2022-11-19 08:14:09,844 INFO L78 Accepts]: Start accepts. Automaton has 28062 states and 41070 transitions. Word has length 153 [2022-11-19 08:14:09,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:14:09,848 INFO L495 AbstractCegarLoop]: Abstraction has 28062 states and 41070 transitions. [2022-11-19 08:14:09,849 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-19 08:14:09,849 INFO L276 IsEmpty]: Start isEmpty. Operand 28062 states and 41070 transitions. [2022-11-19 08:14:09,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2022-11-19 08:14:09,870 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:14:09,870 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:14:09,909 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95085bfd-2f33-414c-babf-d225d27bd53d/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-19 08:14:10,084 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95085bfd-2f33-414c-babf-d225d27bd53d/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:14:10,084 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:14:10,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:14:10,085 INFO L85 PathProgramCache]: Analyzing trace with hash 988067119, now seen corresponding path program 1 times [2022-11-19 08:14:10,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:14:10,085 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524409346] [2022-11-19 08:14:10,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:14:10,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:14:10,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:14:11,395 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2022-11-19 08:14:11,395 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:14:11,396 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524409346] [2022-11-19 08:14:11,396 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [524409346] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:14:11,396 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:14:11,396 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:14:11,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490106682] [2022-11-19 08:14:11,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:14:11,398 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:14:11,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:14:11,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:14:11,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:14:11,399 INFO L87 Difference]: Start difference. First operand 28062 states and 41070 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-11-19 08:14:13,613 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:14:16,055 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:14:19,048 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:14:21,071 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:14:23,333 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:14:25,407 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:14:28,066 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:14:32,499 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:14:36,498 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:14:40,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:14:40,883 INFO L93 Difference]: Finished difference Result 82124 states and 120168 transitions. [2022-11-19 08:14:40,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:14:40,884 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 152 [2022-11-19 08:14:40,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:14:41,272 INFO L225 Difference]: With dead ends: 82124 [2022-11-19 08:14:41,273 INFO L226 Difference]: Without dead ends: 54081 [2022-11-19 08:14:41,412 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:14:41,415 INFO L413 NwaCegarLoop]: 6434 mSDtfsCounter, 4892 mSDsluCounter, 4717 mSDsCounter, 0 mSdLazyCounter, 1337 mSolverCounterSat, 1 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4896 SdHoareTripleChecker+Valid, 11151 SdHoareTripleChecker+Invalid, 1345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1337 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.5s IncrementalHoareTripleChecker+Time [2022-11-19 08:14:41,417 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4896 Valid, 11151 Invalid, 1345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1337 Invalid, 7 Unknown, 0 Unchecked, 27.5s Time] [2022-11-19 08:14:41,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54081 states. [2022-11-19 08:14:44,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54081 to 54062. [2022-11-19 08:14:44,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54062 states, 33246 states have (on average 1.3257233952956746) internal successors, (44075), 34267 states have internal predecessors, (44075), 17323 states have call successors, (17323), 3497 states have call predecessors, (17323), 3492 states have return successors, (17702), 17033 states have call predecessors, (17702), 17322 states have call successors, (17702) [2022-11-19 08:14:45,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54062 states to 54062 states and 79100 transitions. [2022-11-19 08:14:45,376 INFO L78 Accepts]: Start accepts. Automaton has 54062 states and 79100 transitions. Word has length 152 [2022-11-19 08:14:45,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:14:45,377 INFO L495 AbstractCegarLoop]: Abstraction has 54062 states and 79100 transitions. [2022-11-19 08:14:45,377 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-11-19 08:14:45,377 INFO L276 IsEmpty]: Start isEmpty. Operand 54062 states and 79100 transitions. [2022-11-19 08:14:45,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2022-11-19 08:14:45,401 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:14:45,402 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:14:45,402 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-19 08:14:45,402 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:14:45,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:14:45,403 INFO L85 PathProgramCache]: Analyzing trace with hash 1641247342, now seen corresponding path program 1 times [2022-11-19 08:14:45,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:14:45,404 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922806089] [2022-11-19 08:14:45,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:14:45,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:14:45,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:14:45,895 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:14:45,896 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922806089] [2022-11-19 08:14:45,896 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-19 08:14:45,896 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [161142121] [2022-11-19 08:14:45,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:14:45,897 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:14:45,897 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95085bfd-2f33-414c-babf-d225d27bd53d/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:14:45,898 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95085bfd-2f33-414c-babf-d225d27bd53d/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:14:46,140 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95085bfd-2f33-414c-babf-d225d27bd53d/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-19 08:14:49,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:14:49,468 INFO L263 TraceCheckSpWp]: Trace formula consists of 8904 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-19 08:14:49,480 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:14:49,566 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2022-11-19 08:14:49,566 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:14:49,566 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [161142121] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:14:49,566 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:14:49,566 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:14:49,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603547600] [2022-11-19 08:14:49,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:14:49,567 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:14:49,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:14:49,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:14:49,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:14:49,568 INFO L87 Difference]: Start difference. First operand 54062 states and 79100 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-11-19 08:14:51,740 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:14:54,451 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:14:56,918 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:14:59,352 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:15:08,245 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:15:09,885 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:15:11,896 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:15:17,335 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:15:22,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:15:22,598 INFO L93 Difference]: Finished difference Result 157829 states and 230889 transitions. [2022-11-19 08:15:22,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:15:22,599 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 164 [2022-11-19 08:15:22,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:15:23,638 INFO L225 Difference]: With dead ends: 157829 [2022-11-19 08:15:23,638 INFO L226 Difference]: Without dead ends: 103786 [2022-11-19 08:15:23,954 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:15:23,954 INFO L413 NwaCegarLoop]: 7132 mSDtfsCounter, 5123 mSDsluCounter, 4711 mSDsCounter, 0 mSdLazyCounter, 1486 mSolverCounterSat, 11 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5128 SdHoareTripleChecker+Valid, 11843 SdHoareTripleChecker+Invalid, 1503 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1486 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.9s IncrementalHoareTripleChecker+Time [2022-11-19 08:15:23,955 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5128 Valid, 11843 Invalid, 1503 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1486 Invalid, 6 Unknown, 0 Unchecked, 28.9s Time] [2022-11-19 08:15:24,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103786 states. [2022-11-19 08:15:28,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103786 to 103774. [2022-11-19 08:15:28,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103774 states, 63906 states have (on average 1.325587581760711) internal successors, (84713), 65839 states have internal predecessors, (84713), 33139 states have call successors, (33139), 6737 states have call predecessors, (33139), 6728 states have return successors, (33810), 32577 states have call predecessors, (33810), 33138 states have call successors, (33810) [2022-11-19 08:15:30,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103774 states to 103774 states and 151662 transitions. [2022-11-19 08:15:30,301 INFO L78 Accepts]: Start accepts. Automaton has 103774 states and 151662 transitions. Word has length 164 [2022-11-19 08:15:30,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:15:30,302 INFO L495 AbstractCegarLoop]: Abstraction has 103774 states and 151662 transitions. [2022-11-19 08:15:30,302 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-11-19 08:15:30,302 INFO L276 IsEmpty]: Start isEmpty. Operand 103774 states and 151662 transitions. [2022-11-19 08:15:30,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2022-11-19 08:15:30,377 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:15:30,377 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 7, 7, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:15:30,414 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95085bfd-2f33-414c-babf-d225d27bd53d/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-19 08:15:30,604 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95085bfd-2f33-414c-babf-d225d27bd53d/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:15:30,605 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:15:30,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:15:30,605 INFO L85 PathProgramCache]: Analyzing trace with hash -1917203993, now seen corresponding path program 1 times [2022-11-19 08:15:30,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:15:30,605 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194199407] [2022-11-19 08:15:30,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:15:30,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:15:30,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:15:31,962 INFO L134 CoverageAnalysis]: Checked inductivity of 305 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 289 trivial. 0 not checked. [2022-11-19 08:15:31,962 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:15:31,962 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1194199407] [2022-11-19 08:15:31,962 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1194199407] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:15:31,963 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:15:31,963 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:15:31,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436622571] [2022-11-19 08:15:31,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:15:31,964 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:15:31,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:15:31,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:15:31,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:15:31,966 INFO L87 Difference]: Start difference. First operand 103774 states and 151662 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 3 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) [2022-11-19 08:15:33,898 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:15:35,921 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:15:38,760 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:15:41,609 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:15:48,164 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:15:50,933 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:15:51,936 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:15:53,946 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:15:56,006 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:16:05,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:16:05,513 INFO L93 Difference]: Finished difference Result 259184 states and 378778 transitions. [2022-11-19 08:16:05,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:16:05,517 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 3 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) Word has length 211 [2022-11-19 08:16:05,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:16:06,522 INFO L225 Difference]: With dead ends: 259184 [2022-11-19 08:16:06,522 INFO L226 Difference]: Without dead ends: 155429 [2022-11-19 08:16:07,065 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:16:07,066 INFO L413 NwaCegarLoop]: 8548 mSDtfsCounter, 5160 mSDsluCounter, 4510 mSDsCounter, 0 mSdLazyCounter, 1660 mSolverCounterSat, 12 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5164 SdHoareTripleChecker+Valid, 13058 SdHoareTripleChecker+Invalid, 1679 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1660 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.3s IncrementalHoareTripleChecker+Time [2022-11-19 08:16:07,066 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5164 Valid, 13058 Invalid, 1679 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1660 Invalid, 7 Unknown, 0 Unchecked, 27.3s Time] [2022-11-19 08:16:07,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155429 states. [2022-11-19 08:16:14,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155429 to 155414. [2022-11-19 08:16:14,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155414 states, 95906 states have (on average 1.3258086042583364) internal successors, (127153), 98799 states have internal predecessors, (127153), 49419 states have call successors, (49419), 10097 states have call predecessors, (49419), 10088 states have return successors, (50414), 48601 states have call predecessors, (50414), 49418 states have call successors, (50414) [2022-11-19 08:16:15,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155414 states to 155414 states and 226986 transitions. [2022-11-19 08:16:15,953 INFO L78 Accepts]: Start accepts. Automaton has 155414 states and 226986 transitions. Word has length 211 [2022-11-19 08:16:15,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:16:15,954 INFO L495 AbstractCegarLoop]: Abstraction has 155414 states and 226986 transitions. [2022-11-19 08:16:15,954 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 3 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) [2022-11-19 08:16:15,955 INFO L276 IsEmpty]: Start isEmpty. Operand 155414 states and 226986 transitions. [2022-11-19 08:16:16,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-11-19 08:16:16,027 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:16:16,028 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 7, 7, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:16:16,028 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-19 08:16:16,029 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:16:16,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:16:16,029 INFO L85 PathProgramCache]: Analyzing trace with hash -1722199672, now seen corresponding path program 1 times [2022-11-19 08:16:16,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:16:16,030 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233006231] [2022-11-19 08:16:16,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:16:16,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:16:16,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:16:16,570 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:16:16,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233006231] [2022-11-19 08:16:16,570 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-19 08:16:16,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [758981166] [2022-11-19 08:16:16,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:16:16,571 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:16:16,571 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95085bfd-2f33-414c-babf-d225d27bd53d/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:16:16,573 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95085bfd-2f33-414c-babf-d225d27bd53d/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:16:16,581 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95085bfd-2f33-414c-babf-d225d27bd53d/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-19 08:16:20,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:16:20,427 INFO L263 TraceCheckSpWp]: Trace formula consists of 9211 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-19 08:16:20,436 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:16:20,555 INFO L134 CoverageAnalysis]: Checked inductivity of 311 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 197 trivial. 0 not checked. [2022-11-19 08:16:20,555 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:16:20,556 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [758981166] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:16:20,556 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:16:20,556 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:16:20,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215343711] [2022-11-19 08:16:20,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:16:20,557 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:16:20,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:16:20,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:16:20,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:16:20,558 INFO L87 Difference]: Start difference. First operand 155414 states and 226986 transitions. Second operand has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 3 states have call successors, (33), 3 states have call predecessors, (33), 3 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2022-11-19 08:16:21,567 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:16:24,586 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:16:27,680 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:16:31,754 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []