./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-rc-imon.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cffc2a2-3fc8-4abc-9987-74f41bc8fd2a/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cffc2a2-3fc8-4abc-9987-74f41bc8fd2a/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cffc2a2-3fc8-4abc-9987-74f41bc8fd2a/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cffc2a2-3fc8-4abc-9987-74f41bc8fd2a/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-rc-imon.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cffc2a2-3fc8-4abc-9987-74f41bc8fd2a/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cffc2a2-3fc8-4abc-9987-74f41bc8fd2a/bin/utaipan-UbGMyvGFUs --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 5a536358e61e0a2255e3ce0de609a7b791794491b46be2e56aac063bb1d719b1 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 13:42:33,945 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 13:42:33,947 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 13:42:33,979 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 13:42:33,979 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 13:42:33,981 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 13:42:33,983 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 13:42:33,985 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 13:42:33,987 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 13:42:33,989 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 13:42:33,990 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 13:42:33,991 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 13:42:33,992 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 13:42:33,993 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 13:42:33,995 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 13:42:33,997 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 13:42:33,998 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 13:42:33,999 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 13:42:34,002 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 13:42:34,005 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 13:42:34,007 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 13:42:34,008 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 13:42:34,010 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 13:42:34,011 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 13:42:34,015 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 13:42:34,016 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 13:42:34,016 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 13:42:34,017 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 13:42:34,018 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 13:42:34,019 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 13:42:34,020 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 13:42:34,021 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 13:42:34,022 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 13:42:34,023 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 13:42:34,024 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 13:42:34,024 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 13:42:34,025 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 13:42:34,026 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 13:42:34,026 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 13:42:34,028 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 13:42:34,029 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 13:42:34,035 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cffc2a2-3fc8-4abc-9987-74f41bc8fd2a/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-19 13:42:34,078 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 13:42:34,081 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 13:42:34,083 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 13:42:34,083 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 13:42:34,083 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 13:42:34,084 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 13:42:34,084 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 13:42:34,084 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-19 13:42:34,084 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 13:42:34,085 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 13:42:34,086 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-19 13:42:34,086 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-19 13:42:34,086 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 13:42:34,086 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-19 13:42:34,087 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-19 13:42:34,087 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-19 13:42:34,088 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 13:42:34,088 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 13:42:34,088 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 13:42:34,089 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 13:42:34,089 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 13:42:34,089 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 13:42:34,089 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 13:42:34,089 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 13:42:34,090 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 13:42:34,090 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 13:42:34,090 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 13:42:34,090 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 13:42:34,091 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 13:42:34,092 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 13:42:34,093 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 13:42:34,093 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 13:42:34,094 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-19 13:42:34,094 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 13:42:34,094 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 13:42:34,094 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 13:42:34,094 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 13:42:34,095 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_1cffc2a2-3fc8-4abc-9987-74f41bc8fd2a/bin/utaipan-UbGMyvGFUs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cffc2a2-3fc8-4abc-9987-74f41bc8fd2a/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5a536358e61e0a2255e3ce0de609a7b791794491b46be2e56aac063bb1d719b1 [2021-11-19 13:42:34,334 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 13:42:34,357 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 13:42:34,359 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 13:42:34,361 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 13:42:34,362 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 13:42:34,363 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cffc2a2-3fc8-4abc-9987-74f41bc8fd2a/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-rc-imon.cil.i [2021-11-19 13:42:34,430 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cffc2a2-3fc8-4abc-9987-74f41bc8fd2a/bin/utaipan-UbGMyvGFUs/data/0e2112141/d08adfcea8be4be386c9b70f0c1c24e7/FLAG62c5600be [2021-11-19 13:42:35,470 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 13:42:35,471 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cffc2a2-3fc8-4abc-9987-74f41bc8fd2a/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-rc-imon.cil.i [2021-11-19 13:42:35,529 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cffc2a2-3fc8-4abc-9987-74f41bc8fd2a/bin/utaipan-UbGMyvGFUs/data/0e2112141/d08adfcea8be4be386c9b70f0c1c24e7/FLAG62c5600be [2021-11-19 13:42:35,858 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cffc2a2-3fc8-4abc-9987-74f41bc8fd2a/bin/utaipan-UbGMyvGFUs/data/0e2112141/d08adfcea8be4be386c9b70f0c1c24e7 [2021-11-19 13:42:35,861 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 13:42:35,864 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 13:42:35,868 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 13:42:35,868 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 13:42:35,872 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 13:42:35,873 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:42:35" (1/1) ... [2021-11-19 13:42:35,875 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49b53e49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:42:35, skipping insertion in model container [2021-11-19 13:42:35,875 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:42:35" (1/1) ... [2021-11-19 13:42:35,883 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 13:42:36,043 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 13:42:37,463 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:42:37,483 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:42:37,503 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:42:37,584 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:42:37,590 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:42:37,596 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:42:37,604 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:42:37,612 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:42:37,678 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:42:37,716 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:42:37,754 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:42:37,846 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:42:37,858 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:42:37,879 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:42:37,881 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:42:37,914 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:42:37,916 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:42:37,997 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:42:38,027 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:42:38,034 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:42:38,042 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:42:38,044 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:42:38,289 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:42:38,290 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:42:38,291 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:42:38,295 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:42:38,296 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:42:38,297 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:42:38,320 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:42:38,320 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:42:38,321 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:42:38,322 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:42:38,329 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:42:38,330 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:42:38,331 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:42:38,353 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:42:38,361 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:42:38,749 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cffc2a2-3fc8-4abc-9987-74f41bc8fd2a/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-rc-imon.cil.i[293480,293493] [2021-11-19 13:42:38,752 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cffc2a2-3fc8-4abc-9987-74f41bc8fd2a/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-rc-imon.cil.i[293625,293638] [2021-11-19 13:42:38,765 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 13:42:38,804 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-19 13:42:38,805 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@4210b242 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:42:38, skipping insertion in model container [2021-11-19 13:42:38,805 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 13:42:38,806 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-19 13:42:38,808 INFO L158 Benchmark]: Toolchain (without parser) took 2943.13ms. Allocated memory was 94.4MB in the beginning and 125.8MB in the end (delta: 31.5MB). Free memory was 51.8MB in the beginning and 79.8MB in the end (delta: -28.0MB). Peak memory consumption was 45.1MB. Max. memory is 16.1GB. [2021-11-19 13:42:38,809 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 94.4MB. Free memory was 48.0MB in the beginning and 47.9MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 13:42:38,810 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2937.73ms. Allocated memory was 94.4MB in the beginning and 125.8MB in the end (delta: 31.5MB). Free memory was 51.6MB in the beginning and 79.8MB in the end (delta: -28.2MB). Peak memory consumption was 45.1MB. Max. memory is 16.1GB. [2021-11-19 13:42:38,813 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 94.4MB. Free memory was 48.0MB in the beginning and 47.9MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2937.73ms. Allocated memory was 94.4MB in the beginning and 125.8MB in the end (delta: 31.5MB). Free memory was 51.6MB in the beginning and 79.8MB in the end (delta: -28.2MB). Peak memory consumption was 45.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 4084]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cffc2a2-3fc8-4abc-9987-74f41bc8fd2a/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cffc2a2-3fc8-4abc-9987-74f41bc8fd2a/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cffc2a2-3fc8-4abc-9987-74f41bc8fd2a/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cffc2a2-3fc8-4abc-9987-74f41bc8fd2a/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-rc-imon.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cffc2a2-3fc8-4abc-9987-74f41bc8fd2a/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cffc2a2-3fc8-4abc-9987-74f41bc8fd2a/bin/utaipan-UbGMyvGFUs --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 5a536358e61e0a2255e3ce0de609a7b791794491b46be2e56aac063bb1d719b1 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 13:42:41,312 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 13:42:41,316 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 13:42:41,389 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 13:42:41,390 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 13:42:41,394 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 13:42:41,396 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 13:42:41,401 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 13:42:41,404 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 13:42:41,413 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 13:42:41,414 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 13:42:41,416 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 13:42:41,417 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 13:42:41,420 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 13:42:41,422 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 13:42:41,426 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 13:42:41,428 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 13:42:41,429 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 13:42:41,430 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 13:42:41,433 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 13:42:41,435 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 13:42:41,440 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 13:42:41,441 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 13:42:41,442 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 13:42:41,446 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 13:42:41,446 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 13:42:41,447 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 13:42:41,448 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 13:42:41,449 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 13:42:41,455 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 13:42:41,455 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 13:42:41,457 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 13:42:41,459 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 13:42:41,460 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 13:42:41,461 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 13:42:41,462 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 13:42:41,463 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 13:42:41,463 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 13:42:41,463 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 13:42:41,465 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 13:42:41,466 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 13:42:41,472 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cffc2a2-3fc8-4abc-9987-74f41bc8fd2a/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-19 13:42:41,518 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 13:42:41,518 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 13:42:41,519 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 13:42:41,520 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 13:42:41,520 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 13:42:41,520 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 13:42:41,520 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 13:42:41,520 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 13:42:41,521 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 13:42:41,521 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 13:42:41,523 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 13:42:41,524 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 13:42:41,524 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 13:42:41,524 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 13:42:41,524 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 13:42:41,524 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 13:42:41,525 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-19 13:42:41,525 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-19 13:42:41,525 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 13:42:41,525 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 13:42:41,525 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 13:42:41,526 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 13:42:41,526 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 13:42:41,526 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 13:42:41,526 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 13:42:41,526 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 13:42:41,527 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 13:42:41,527 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 13:42:41,527 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-19 13:42:41,527 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-19 13:42:41,527 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 13:42:41,527 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 13:42:41,528 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 13:42:41,528 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cffc2a2-3fc8-4abc-9987-74f41bc8fd2a/bin/utaipan-UbGMyvGFUs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cffc2a2-3fc8-4abc-9987-74f41bc8fd2a/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5a536358e61e0a2255e3ce0de609a7b791794491b46be2e56aac063bb1d719b1 [2021-11-19 13:42:41,911 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 13:42:41,952 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 13:42:41,956 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 13:42:41,957 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 13:42:41,958 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 13:42:41,960 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cffc2a2-3fc8-4abc-9987-74f41bc8fd2a/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-rc-imon.cil.i [2021-11-19 13:42:42,032 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cffc2a2-3fc8-4abc-9987-74f41bc8fd2a/bin/utaipan-UbGMyvGFUs/data/4422900fc/bc1c53fc5f634f48af2989a7b50f8f8b/FLAG2d7b46221 [2021-11-19 13:42:43,058 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 13:42:43,059 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cffc2a2-3fc8-4abc-9987-74f41bc8fd2a/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-rc-imon.cil.i [2021-11-19 13:42:43,125 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cffc2a2-3fc8-4abc-9987-74f41bc8fd2a/bin/utaipan-UbGMyvGFUs/data/4422900fc/bc1c53fc5f634f48af2989a7b50f8f8b/FLAG2d7b46221 [2021-11-19 13:42:43,425 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cffc2a2-3fc8-4abc-9987-74f41bc8fd2a/bin/utaipan-UbGMyvGFUs/data/4422900fc/bc1c53fc5f634f48af2989a7b50f8f8b [2021-11-19 13:42:43,428 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 13:42:43,430 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 13:42:43,435 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 13:42:43,435 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 13:42:43,439 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 13:42:43,440 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:42:43" (1/1) ... [2021-11-19 13:42:43,441 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66a23a1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:42:43, skipping insertion in model container [2021-11-19 13:42:43,442 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:42:43" (1/1) ... [2021-11-19 13:42:43,450 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 13:42:43,671 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 13:42:46,559 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cffc2a2-3fc8-4abc-9987-74f41bc8fd2a/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-rc-imon.cil.i[293480,293493] [2021-11-19 13:42:46,562 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cffc2a2-3fc8-4abc-9987-74f41bc8fd2a/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-rc-imon.cil.i[293625,293638] [2021-11-19 13:42:46,579 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 13:42:46,665 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-19 13:42:46,729 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 13:42:47,081 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cffc2a2-3fc8-4abc-9987-74f41bc8fd2a/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-rc-imon.cil.i[293480,293493] [2021-11-19 13:42:47,082 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cffc2a2-3fc8-4abc-9987-74f41bc8fd2a/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-rc-imon.cil.i[293625,293638] [2021-11-19 13:42:47,087 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 13:42:47,130 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 13:42:47,492 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cffc2a2-3fc8-4abc-9987-74f41bc8fd2a/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-rc-imon.cil.i[293480,293493] [2021-11-19 13:42:47,492 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cffc2a2-3fc8-4abc-9987-74f41bc8fd2a/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-rc-imon.cil.i[293625,293638] [2021-11-19 13:42:47,497 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 13:42:47,669 INFO L208 MainTranslator]: Completed translation [2021-11-19 13:42:47,669 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:42:47 WrapperNode [2021-11-19 13:42:47,670 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 13:42:47,671 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 13:42:47,671 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 13:42:47,671 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 13:42:47,678 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:42:47" (1/1) ... [2021-11-19 13:42:47,821 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:42:47" (1/1) ... [2021-11-19 13:42:48,084 INFO L137 Inliner]: procedures = 378, calls = 2922, calls flagged for inlining = 178, calls inlined = 134, statements flattened = 4729 [2021-11-19 13:42:48,085 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 13:42:48,085 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 13:42:48,086 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 13:42:48,086 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 13:42:48,094 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:42:47" (1/1) ... [2021-11-19 13:42:48,095 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:42:47" (1/1) ... [2021-11-19 13:42:48,145 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:42:47" (1/1) ... [2021-11-19 13:42:48,157 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:42:47" (1/1) ... [2021-11-19 13:42:48,320 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:42:47" (1/1) ... [2021-11-19 13:42:48,341 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:42:47" (1/1) ... [2021-11-19 13:42:48,475 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:42:47" (1/1) ... [2021-11-19 13:42:48,531 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 13:42:48,532 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 13:42:48,533 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 13:42:48,533 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 13:42:48,546 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:42:47" (1/1) ... [2021-11-19 13:42:48,554 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 13:42:48,577 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cffc2a2-3fc8-4abc-9987-74f41bc8fd2a/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 13:42:48,590 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cffc2a2-3fc8-4abc-9987-74f41bc8fd2a/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 13:42:48,634 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cffc2a2-3fc8-4abc-9987-74f41bc8fd2a/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 13:42:48,680 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-19 13:42:48,680 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2021-11-19 13:42:48,681 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2021-11-19 13:42:48,681 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2021-11-19 13:42:48,681 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2021-11-19 13:42:48,681 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-19 13:42:48,681 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2021-11-19 13:42:48,681 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-19 13:42:48,682 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-19 13:42:48,682 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-19 13:42:48,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-19 13:42:48,682 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-19 13:42:48,682 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-19 13:42:48,683 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-19 13:42:48,683 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-19 13:42:48,683 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_dev [2021-11-19 13:42:48,683 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_dev [2021-11-19 13:42:48,683 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-11-19 13:42:48,684 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-11-19 13:42:48,684 INFO L130 BoogieDeclarations]: Found specification of procedure usb_make_path [2021-11-19 13:42:48,684 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_make_path [2021-11-19 13:42:48,684 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-19 13:42:48,684 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-19 13:42:48,685 INFO L130 BoogieDeclarations]: Found specification of procedure send_packet [2021-11-19 13:42:48,685 INFO L138 BoogieDeclarations]: Found implementation of procedure send_packet [2021-11-19 13:42:48,685 INFO L130 BoogieDeclarations]: Found specification of procedure strlcat [2021-11-19 13:42:48,685 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcat [2021-11-19 13:42:48,686 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-11-19 13:42:48,686 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-11-19 13:42:48,686 INFO L130 BoogieDeclarations]: Found specification of procedure imon_disconnect [2021-11-19 13:42:48,686 INFO L138 BoogieDeclarations]: Found implementation of procedure imon_disconnect [2021-11-19 13:42:48,686 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister_dev [2021-11-19 13:42:48,687 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister_dev [2021-11-19 13:42:48,687 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_instance_release_5_4 [2021-11-19 13:42:48,687 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_instance_release_5_4 [2021-11-19 13:42:48,687 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2021-11-19 13:42:48,687 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2021-11-19 13:42:48,688 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 13:42:48,688 INFO L130 BoogieDeclarations]: Found specification of procedure input_event [2021-11-19 13:42:48,688 INFO L138 BoogieDeclarations]: Found implementation of procedure input_event [2021-11-19 13:42:48,688 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-19 13:42:48,688 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-19 13:42:48,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-19 13:42:48,689 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-19 13:42:48,689 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-19 13:42:48,689 INFO L130 BoogieDeclarations]: Found specification of procedure input_allocate_device [2021-11-19 13:42:48,689 INFO L138 BoogieDeclarations]: Found implementation of procedure input_allocate_device [2021-11-19 13:42:48,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-19 13:42:48,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-19 13:42:48,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-19 13:42:48,690 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-19 13:42:48,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-19 13:42:48,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-19 13:42:48,691 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_imon_driver_exit_11_2 [2021-11-19 13:42:48,691 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_imon_driver_exit_11_2 [2021-11-19 13:42:48,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2021-11-19 13:42:48,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-19 13:42:48,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-19 13:42:48,692 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-19 13:42:48,692 INFO L130 BoogieDeclarations]: Found specification of procedure imon_resume [2021-11-19 13:42:48,692 INFO L138 BoogieDeclarations]: Found implementation of procedure imon_resume [2021-11-19 13:42:48,692 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-11-19 13:42:48,692 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-11-19 13:42:48,693 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-11-19 13:42:48,693 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-11-19 13:42:48,693 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2021-11-19 13:42:48,693 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2021-11-19 13:42:48,693 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-19 13:42:48,693 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-19 13:42:48,694 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_drvdata [2021-11-19 13:42:48,694 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_drvdata [2021-11-19 13:42:48,694 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_key [2021-11-19 13:42:48,694 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_key [2021-11-19 13:42:48,694 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-19 13:42:48,694 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-19 13:42:48,695 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2021-11-19 13:42:48,695 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2021-11-19 13:42:48,695 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_abs [2021-11-19 13:42:48,695 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_abs [2021-11-19 13:42:48,695 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-19 13:42:48,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-19 13:42:48,696 INFO L130 BoogieDeclarations]: Found specification of procedure input_free_device [2021-11-19 13:42:48,696 INFO L138 BoogieDeclarations]: Found implementation of procedure input_free_device [2021-11-19 13:42:48,696 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_create_group [2021-11-19 13:42:48,696 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_create_group [2021-11-19 13:42:48,697 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_remove_group [2021-11-19 13:42:48,697 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_remove_group [2021-11-19 13:42:48,697 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2021-11-19 13:42:48,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2021-11-19 13:42:48,697 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-19 13:42:48,697 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-19 13:42:48,698 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2021-11-19 13:42:48,698 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2021-11-19 13:42:48,698 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2021-11-19 13:42:48,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2021-11-19 13:42:48,698 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-19 13:42:48,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-19 13:42:48,699 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-19 13:42:48,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-19 13:42:48,699 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2021-11-19 13:42:48,699 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2021-11-19 13:42:48,699 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-19 13:42:48,700 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-19 13:42:48,700 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_int_urb [2021-11-19 13:42:48,700 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_int_urb [2021-11-19 13:42:48,700 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-19 13:42:48,700 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-19 13:42:48,701 INFO L130 BoogieDeclarations]: Found specification of procedure usb_to_input_id [2021-11-19 13:42:48,701 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_to_input_id [2021-11-19 13:42:48,701 INFO L130 BoogieDeclarations]: Found specification of procedure input_sync [2021-11-19 13:42:48,701 INFO L138 BoogieDeclarations]: Found implementation of procedure input_sync [2021-11-19 13:42:48,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-19 13:42:48,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-19 13:42:48,702 INFO L130 BoogieDeclarations]: Found specification of procedure noop_llseek [2021-11-19 13:42:48,702 INFO L138 BoogieDeclarations]: Found implementation of procedure noop_llseek [2021-11-19 13:42:48,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-19 13:42:48,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-19 13:42:48,703 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-19 13:42:48,703 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-19 13:42:48,703 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-19 13:42:48,703 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-19 13:42:48,703 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-19 13:42:48,703 INFO L130 BoogieDeclarations]: Found specification of procedure input_register_device [2021-11-19 13:42:48,704 INFO L138 BoogieDeclarations]: Found implementation of procedure input_register_device [2021-11-19 13:42:48,704 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2021-11-19 13:42:48,704 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2021-11-19 13:42:48,704 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 13:42:48,704 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-19 13:42:48,705 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-19 13:42:48,705 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-19 13:42:48,705 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_abs_params [2021-11-19 13:42:48,705 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_abs_params [2021-11-19 13:42:48,705 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-19 13:42:48,706 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-19 13:42:48,706 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-19 13:42:48,706 INFO L130 BoogieDeclarations]: Found specification of procedure display_close [2021-11-19 13:42:48,706 INFO L138 BoogieDeclarations]: Found implementation of procedure display_close [2021-11-19 13:42:48,706 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-19 13:42:48,706 INFO L130 BoogieDeclarations]: Found specification of procedure ___ratelimit [2021-11-19 13:42:48,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ___ratelimit [2021-11-19 13:42:48,707 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2021-11-19 13:42:48,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2021-11-19 13:42:48,707 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2021-11-19 13:42:48,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2021-11-19 13:42:48,708 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_dev [2021-11-19 13:42:48,708 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_dev [2021-11-19 13:42:48,708 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2021-11-19 13:42:48,708 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2021-11-19 13:42:48,708 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-19 13:42:48,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-19 13:42:48,709 INFO L130 BoogieDeclarations]: Found specification of procedure input_unregister_device [2021-11-19 13:42:48,709 INFO L138 BoogieDeclarations]: Found implementation of procedure input_unregister_device [2021-11-19 13:42:48,709 INFO L130 BoogieDeclarations]: Found specification of procedure imon_find_endpoints [2021-11-19 13:42:48,709 INFO L138 BoogieDeclarations]: Found implementation of procedure imon_find_endpoints [2021-11-19 13:42:48,709 INFO L130 BoogieDeclarations]: Found specification of procedure display_open [2021-11-19 13:42:48,709 INFO L138 BoogieDeclarations]: Found implementation of procedure display_open [2021-11-19 13:42:48,710 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-19 13:42:48,710 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2021-11-19 13:42:48,710 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2021-11-19 13:42:48,710 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-19 13:42:48,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-19 13:42:48,711 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 13:42:48,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 13:42:49,602 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 13:42:49,609 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 13:42:49,746 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-19 13:44:04,897 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-19 13:44:04,958 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 13:44:04,982 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 13:44:04,982 INFO L301 CfgBuilder]: Removed 3 assume(true) statements. [2021-11-19 13:44:04,988 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:44:04 BoogieIcfgContainer [2021-11-19 13:44:04,988 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 13:44:04,990 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 13:44:04,990 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 13:44:04,994 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 13:44:04,994 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 01:42:43" (1/3) ... [2021-11-19 13:44:04,995 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b3089f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:44:04, skipping insertion in model container [2021-11-19 13:44:04,995 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:42:47" (2/3) ... [2021-11-19 13:44:04,996 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b3089f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:44:04, skipping insertion in model container [2021-11-19 13:44:04,996 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:44:04" (3/3) ... [2021-11-19 13:44:04,997 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-rc-imon.cil.i [2021-11-19 13:44:05,004 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 13:44:05,004 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-19 13:44:05,074 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 13:44:05,085 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-19 13:44:05,089 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-19 13:44:05,156 INFO L276 IsEmpty]: Start isEmpty. Operand has 1366 states, 947 states have (on average 1.307286166842661) internal successors, (1238), 956 states have internal predecessors, (1238), 355 states have call successors, (355), 65 states have call predecessors, (355), 64 states have return successors, (349), 348 states have call predecessors, (349), 349 states have call successors, (349) [2021-11-19 13:44:05,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2021-11-19 13:44:05,193 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:44:05,195 INFO L514 BasicCegarLoop]: trace histogram [20, 20, 19, 19, 19, 19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:44:05,196 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:44:05,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:44:05,201 INFO L85 PathProgramCache]: Analyzing trace with hash 759947429, now seen corresponding path program 1 times [2021-11-19 13:44:05,223 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:44:05,224 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1611061] [2021-11-19 13:44:05,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:44:05,225 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:44:05,225 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cffc2a2-3fc8-4abc-9987-74f41bc8fd2a/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:44:05,229 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cffc2a2-3fc8-4abc-9987-74f41bc8fd2a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:44:05,238 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cffc2a2-3fc8-4abc-9987-74f41bc8fd2a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-19 13:44:08,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:44:08,943 INFO L263 TraceCheckSpWp]: Trace formula consists of 2940 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 13:44:08,964 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:44:10,084 INFO L134 CoverageAnalysis]: Checked inductivity of 1596 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 1539 trivial. 0 not checked. [2021-11-19 13:44:10,084 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:44:10,961 INFO L134 CoverageAnalysis]: Checked inductivity of 1596 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1596 trivial. 0 not checked. [2021-11-19 13:44:10,962 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:44:10,962 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1611061] [2021-11-19 13:44:10,963 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1611061] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:44:10,963 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:44:10,963 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 13:44:10,965 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96894376] [2021-11-19 13:44:10,967 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:44:10,978 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 13:44:10,979 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:44:11,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 13:44:11,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 13:44:11,015 INFO L87 Difference]: Start difference. First operand has 1366 states, 947 states have (on average 1.307286166842661) internal successors, (1238), 956 states have internal predecessors, (1238), 355 states have call successors, (355), 65 states have call predecessors, (355), 64 states have return successors, (349), 348 states have call predecessors, (349), 349 states have call successors, (349) Second operand has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 4 states have call successors, (34), 3 states have call predecessors, (34), 3 states have return successors, (32), 4 states have call predecessors, (32), 4 states have call successors, (32) [2021-11-19 13:44:13,341 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.31s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:44:18,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:44:18,841 INFO L93 Difference]: Finished difference Result 4210 states and 6056 transitions. [2021-11-19 13:44:18,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 13:44:18,856 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 4 states have call successors, (34), 3 states have call predecessors, (34), 3 states have return successors, (32), 4 states have call predecessors, (32), 4 states have call successors, (32) Word has length 272 [2021-11-19 13:44:18,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:44:18,910 INFO L225 Difference]: With dead ends: 4210 [2021-11-19 13:44:18,910 INFO L226 Difference]: Without dead ends: 2774 [2021-11-19 13:44:18,925 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 542 GetRequests, 540 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 13:44:18,929 INFO L933 BasicCegarLoop]: 2332 mSDtfsCounter, 2878 mSDsluCounter, 2577 mSDsCounter, 0 mSdLazyCounter, 720 mSolverCounterSat, 32 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2878 SdHoareTripleChecker+Valid, 4909 SdHoareTripleChecker+Invalid, 753 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 720 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2021-11-19 13:44:18,930 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2878 Valid, 4909 Invalid, 753 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 720 Invalid, 1 Unknown, 0 Unchecked, 7.4s Time] [2021-11-19 13:44:18,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2774 states. [2021-11-19 13:44:19,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2774 to 2766. [2021-11-19 13:44:19,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2766 states, 1971 states have (on average 1.3094875697615425) internal successors, (2581), 1986 states have internal predecessors, (2581), 662 states have call successors, (662), 132 states have call predecessors, (662), 132 states have return successors, (662), 657 states have call predecessors, (662), 662 states have call successors, (662) [2021-11-19 13:44:19,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2766 states to 2766 states and 3905 transitions. [2021-11-19 13:44:19,293 INFO L78 Accepts]: Start accepts. Automaton has 2766 states and 3905 transitions. Word has length 272 [2021-11-19 13:44:19,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:44:19,295 INFO L470 AbstractCegarLoop]: Abstraction has 2766 states and 3905 transitions. [2021-11-19 13:44:19,296 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 4 states have call successors, (34), 3 states have call predecessors, (34), 3 states have return successors, (32), 4 states have call predecessors, (32), 4 states have call successors, (32) [2021-11-19 13:44:19,296 INFO L276 IsEmpty]: Start isEmpty. Operand 2766 states and 3905 transitions. [2021-11-19 13:44:19,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 289 [2021-11-19 13:44:19,311 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:44:19,312 INFO L514 BasicCegarLoop]: trace histogram [20, 20, 19, 19, 19, 19, 19, 19, 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] [2021-11-19 13:44:19,392 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cffc2a2-3fc8-4abc-9987-74f41bc8fd2a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-19 13:44:19,538 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cffc2a2-3fc8-4abc-9987-74f41bc8fd2a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:44:19,538 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:44:19,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:44:19,540 INFO L85 PathProgramCache]: Analyzing trace with hash -1611675044, now seen corresponding path program 1 times [2021-11-19 13:44:19,546 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:44:19,549 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [926713278] [2021-11-19 13:44:19,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:44:19,550 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:44:19,550 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cffc2a2-3fc8-4abc-9987-74f41bc8fd2a/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:44:19,551 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cffc2a2-3fc8-4abc-9987-74f41bc8fd2a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:44:19,562 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cffc2a2-3fc8-4abc-9987-74f41bc8fd2a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-19 13:44:22,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:44:22,985 INFO L263 TraceCheckSpWp]: Trace formula consists of 2997 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 13:44:22,997 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:44:23,989 INFO L134 CoverageAnalysis]: Checked inductivity of 1600 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 1543 trivial. 0 not checked. [2021-11-19 13:44:23,990 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:44:24,820 INFO L134 CoverageAnalysis]: Checked inductivity of 1600 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1600 trivial. 0 not checked. [2021-11-19 13:44:24,821 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:44:24,821 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [926713278] [2021-11-19 13:44:24,821 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [926713278] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:44:24,823 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:44:24,823 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-19 13:44:24,823 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27072300] [2021-11-19 13:44:24,824 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:44:24,827 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 13:44:24,827 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:44:24,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 13:44:24,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 13:44:24,828 INFO L87 Difference]: Start difference. First operand 2766 states and 3905 transitions. Second operand has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 3 states have call successors, (40), 3 states have call predecessors, (40), 3 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) [2021-11-19 13:44:27,031 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:44:27,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:44:27,564 INFO L93 Difference]: Finished difference Result 8017 states and 11312 transitions. [2021-11-19 13:44:27,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 13:44:27,565 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 3 states have call successors, (40), 3 states have call predecessors, (40), 3 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) Word has length 288 [2021-11-19 13:44:27,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:44:27,621 INFO L225 Difference]: With dead ends: 8017 [2021-11-19 13:44:27,621 INFO L226 Difference]: Without dead ends: 5294 [2021-11-19 13:44:27,634 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 574 GetRequests, 573 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 13:44:27,640 INFO L933 BasicCegarLoop]: 2160 mSDtfsCounter, 1682 mSDsluCounter, 1826 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1682 SdHoareTripleChecker+Valid, 3986 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2021-11-19 13:44:27,640 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1682 Valid, 3986 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 27 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2021-11-19 13:44:27,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5294 states. [2021-11-19 13:44:28,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5294 to 5286. [2021-11-19 13:44:28,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5286 states, 3773 states have (on average 1.3106281473628412) internal successors, (4945), 3809 states have internal predecessors, (4945), 1251 states have call successors, (1251), 261 states have call predecessors, (1251), 261 states have return successors, (1251), 1235 states have call predecessors, (1251), 1251 states have call successors, (1251) [2021-11-19 13:44:28,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5286 states to 5286 states and 7447 transitions. [2021-11-19 13:44:28,104 INFO L78 Accepts]: Start accepts. Automaton has 5286 states and 7447 transitions. Word has length 288 [2021-11-19 13:44:28,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:44:28,107 INFO L470 AbstractCegarLoop]: Abstraction has 5286 states and 7447 transitions. [2021-11-19 13:44:28,107 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 3 states have call successors, (40), 3 states have call predecessors, (40), 3 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) [2021-11-19 13:44:28,107 INFO L276 IsEmpty]: Start isEmpty. Operand 5286 states and 7447 transitions. [2021-11-19 13:44:28,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2021-11-19 13:44:28,130 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:44:28,130 INFO L514 BasicCegarLoop]: trace histogram [21, 21, 19, 19, 19, 19, 19, 19, 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] [2021-11-19 13:44:28,215 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cffc2a2-3fc8-4abc-9987-74f41bc8fd2a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-19 13:44:28,346 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cffc2a2-3fc8-4abc-9987-74f41bc8fd2a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:44:28,347 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:44:28,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:44:28,347 INFO L85 PathProgramCache]: Analyzing trace with hash 1534933844, now seen corresponding path program 1 times [2021-11-19 13:44:28,351 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:44:28,351 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [444809120] [2021-11-19 13:44:28,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:44:28,351 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:44:28,352 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cffc2a2-3fc8-4abc-9987-74f41bc8fd2a/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:44:28,353 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cffc2a2-3fc8-4abc-9987-74f41bc8fd2a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:44:28,394 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cffc2a2-3fc8-4abc-9987-74f41bc8fd2a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-19 13:44:31,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:44:31,850 INFO L263 TraceCheckSpWp]: Trace formula consists of 2995 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 13:44:31,858 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:44:32,743 INFO L134 CoverageAnalysis]: Checked inductivity of 1665 backedges. 126 proven. 0 refuted. 0 times theorem prover too weak. 1539 trivial. 0 not checked. [2021-11-19 13:44:32,744 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:44:33,840 INFO L134 CoverageAnalysis]: Checked inductivity of 1665 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 1656 trivial. 0 not checked. [2021-11-19 13:44:33,840 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:44:33,841 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [444809120] [2021-11-19 13:44:33,841 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [444809120] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:44:33,841 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:44:33,842 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 13:44:33,845 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745602980] [2021-11-19 13:44:33,846 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:44:33,847 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 13:44:33,848 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:44:33,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 13:44:33,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 13:44:33,850 INFO L87 Difference]: Start difference. First operand 5286 states and 7447 transitions. Second operand has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 4 states have call successors, (39), 3 states have call predecessors, (39), 3 states have return successors, (36), 4 states have call predecessors, (36), 4 states have call successors, (36) [2021-11-19 13:44:36,190 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.34s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:44:42,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:44:42,268 INFO L93 Difference]: Finished difference Result 20931 states and 29488 transitions. [2021-11-19 13:44:42,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 13:44:42,269 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 4 states have call successors, (39), 3 states have call predecessors, (39), 3 states have return successors, (36), 4 states have call predecessors, (36), 4 states have call successors, (36) Word has length 301 [2021-11-19 13:44:42,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:44:42,474 INFO L225 Difference]: With dead ends: 20931 [2021-11-19 13:44:42,475 INFO L226 Difference]: Without dead ends: 15688 [2021-11-19 13:44:42,500 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 600 GetRequests, 598 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 13:44:42,504 INFO L933 BasicCegarLoop]: 3115 mSDtfsCounter, 3590 mSDsluCounter, 4033 mSDsCounter, 0 mSdLazyCounter, 674 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3590 SdHoareTripleChecker+Valid, 7148 SdHoareTripleChecker+Invalid, 684 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 674 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2021-11-19 13:44:42,506 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3590 Valid, 7148 Invalid, 684 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 674 Invalid, 1 Unknown, 0 Unchecked, 7.5s Time] [2021-11-19 13:44:42,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15688 states. [2021-11-19 13:44:43,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15688 to 15672. [2021-11-19 13:44:43,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15672 states, 11197 states have (on average 1.311333392873091) internal successors, (14683), 11301 states have internal predecessors, (14683), 3691 states have call successors, (3691), 783 states have call predecessors, (3691), 783 states have return successors, (3691), 3647 states have call predecessors, (3691), 3691 states have call successors, (3691) [2021-11-19 13:44:43,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15672 states to 15672 states and 22065 transitions. [2021-11-19 13:44:43,753 INFO L78 Accepts]: Start accepts. Automaton has 15672 states and 22065 transitions. Word has length 301 [2021-11-19 13:44:43,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:44:43,754 INFO L470 AbstractCegarLoop]: Abstraction has 15672 states and 22065 transitions. [2021-11-19 13:44:43,755 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 4 states have call successors, (39), 3 states have call predecessors, (39), 3 states have return successors, (36), 4 states have call predecessors, (36), 4 states have call successors, (36) [2021-11-19 13:44:43,755 INFO L276 IsEmpty]: Start isEmpty. Operand 15672 states and 22065 transitions. [2021-11-19 13:44:43,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 321 [2021-11-19 13:44:43,769 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:44:43,773 INFO L514 BasicCegarLoop]: trace histogram [20, 20, 19, 19, 19, 19, 19, 19, 5, 5, 5, 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] [2021-11-19 13:44:43,843 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cffc2a2-3fc8-4abc-9987-74f41bc8fd2a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-19 13:44:43,993 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cffc2a2-3fc8-4abc-9987-74f41bc8fd2a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:44:43,994 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:44:43,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:44:43,995 INFO L85 PathProgramCache]: Analyzing trace with hash 1232116407, now seen corresponding path program 1 times [2021-11-19 13:44:43,998 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:44:43,998 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1361595564] [2021-11-19 13:44:43,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:44:43,998 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:44:43,999 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cffc2a2-3fc8-4abc-9987-74f41bc8fd2a/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:44:44,000 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cffc2a2-3fc8-4abc-9987-74f41bc8fd2a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:44:44,002 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cffc2a2-3fc8-4abc-9987-74f41bc8fd2a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-19 13:44:47,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:44:47,411 INFO L263 TraceCheckSpWp]: Trace formula consists of 3047 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 13:44:47,421 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:44:48,591 INFO L134 CoverageAnalysis]: Checked inductivity of 1647 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 1590 trivial. 0 not checked. [2021-11-19 13:44:48,592 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:44:49,485 INFO L134 CoverageAnalysis]: Checked inductivity of 1647 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1647 trivial. 0 not checked. [2021-11-19 13:44:49,485 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:44:49,485 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1361595564] [2021-11-19 13:44:49,485 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1361595564] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:44:49,485 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:44:49,486 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-19 13:44:49,486 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055241126] [2021-11-19 13:44:49,486 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:44:49,487 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 13:44:49,487 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:44:49,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 13:44:49,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 13:44:49,488 INFO L87 Difference]: Start difference. First operand 15672 states and 22065 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 3 states have call successors, (46), 3 states have call predecessors, (46), 3 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) [2021-11-19 13:44:51,767 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:44:53,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:44:53,357 INFO L93 Difference]: Finished difference Result 45274 states and 63551 transitions. [2021-11-19 13:44:53,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 13:44:53,362 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 3 states have call successors, (46), 3 states have call predecessors, (46), 3 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) Word has length 320 [2021-11-19 13:44:53,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:44:53,593 INFO L225 Difference]: With dead ends: 45274 [2021-11-19 13:44:53,593 INFO L226 Difference]: Without dead ends: 29645 [2021-11-19 13:44:53,668 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 638 GetRequests, 637 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 13:44:53,671 INFO L933 BasicCegarLoop]: 2143 mSDtfsCounter, 1629 mSDsluCounter, 1812 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 12 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1629 SdHoareTripleChecker+Valid, 3955 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2021-11-19 13:44:53,672 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1629 Valid, 3955 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 44 Invalid, 1 Unknown, 0 Unchecked, 2.6s Time] [2021-11-19 13:44:53,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29645 states. [2021-11-19 13:44:55,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29645 to 29607. [2021-11-19 13:44:55,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29607 states, 21235 states have (on average 1.3062867906757711) internal successors, (27739), 21479 states have internal predecessors, (27739), 6805 states have call successors, (6805), 1566 states have call predecessors, (6805), 1566 states have return successors, (6805), 6681 states have call predecessors, (6805), 6805 states have call successors, (6805) [2021-11-19 13:44:55,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29607 states to 29607 states and 41349 transitions. [2021-11-19 13:44:55,937 INFO L78 Accepts]: Start accepts. Automaton has 29607 states and 41349 transitions. Word has length 320 [2021-11-19 13:44:55,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:44:55,941 INFO L470 AbstractCegarLoop]: Abstraction has 29607 states and 41349 transitions. [2021-11-19 13:44:55,942 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 3 states have call successors, (46), 3 states have call predecessors, (46), 3 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) [2021-11-19 13:44:55,942 INFO L276 IsEmpty]: Start isEmpty. Operand 29607 states and 41349 transitions. [2021-11-19 13:44:55,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 307 [2021-11-19 13:44:55,971 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:44:55,971 INFO L514 BasicCegarLoop]: trace histogram [20, 20, 19, 19, 19, 19, 19, 19, 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] [2021-11-19 13:44:56,081 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cffc2a2-3fc8-4abc-9987-74f41bc8fd2a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-19 13:44:56,186 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cffc2a2-3fc8-4abc-9987-74f41bc8fd2a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:44:56,187 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:44:56,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:44:56,188 INFO L85 PathProgramCache]: Analyzing trace with hash 2130554439, now seen corresponding path program 1 times [2021-11-19 13:44:56,191 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:44:56,191 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [854241781] [2021-11-19 13:44:56,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:44:56,191 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:44:56,191 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cffc2a2-3fc8-4abc-9987-74f41bc8fd2a/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:44:56,192 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cffc2a2-3fc8-4abc-9987-74f41bc8fd2a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:44:56,232 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cffc2a2-3fc8-4abc-9987-74f41bc8fd2a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-19 13:44:59,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:44:59,822 INFO L263 TraceCheckSpWp]: Trace formula consists of 3087 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 13:44:59,829 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:45:00,674 INFO L134 CoverageAnalysis]: Checked inductivity of 1600 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 1543 trivial. 0 not checked. [2021-11-19 13:45:00,674 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:45:01,584 INFO L134 CoverageAnalysis]: Checked inductivity of 1600 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1600 trivial. 0 not checked. [2021-11-19 13:45:01,585 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:45:01,585 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [854241781] [2021-11-19 13:45:01,585 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [854241781] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:45:01,585 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:45:01,586 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-19 13:45:01,586 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517909353] [2021-11-19 13:45:01,586 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:45:01,589 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 13:45:01,589 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:45:01,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 13:45:01,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 13:45:01,590 INFO L87 Difference]: Start difference. First operand 29607 states and 41349 transitions. Second operand has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 3 states have call successors, (40), 3 states have call predecessors, (40), 3 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) [2021-11-19 13:45:03,879 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:45:06,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:45:06,445 INFO L93 Difference]: Finished difference Result 85999 states and 119711 transitions. [2021-11-19 13:45:06,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 13:45:06,446 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 3 states have call successors, (40), 3 states have call predecessors, (40), 3 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) Word has length 306 [2021-11-19 13:45:06,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:45:06,761 INFO L225 Difference]: With dead ends: 85999 [2021-11-19 13:45:06,761 INFO L226 Difference]: Without dead ends: 56435 [2021-11-19 13:45:06,871 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 610 GetRequests, 609 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 13:45:06,872 INFO L933 BasicCegarLoop]: 2363 mSDtfsCounter, 1654 mSDsluCounter, 1827 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1654 SdHoareTripleChecker+Valid, 4190 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2021-11-19 13:45:06,873 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1654 Valid, 4190 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 27 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2021-11-19 13:45:06,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56435 states. [2021-11-19 13:45:10,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56435 to 56361. [2021-11-19 13:45:10,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56361 states, 40213 states have (on average 1.296620495859548) internal successors, (52141), 40737 states have internal predecessors, (52141), 13015 states have call successors, (13015), 3132 states have call predecessors, (13015), 3132 states have return successors, (13015), 12731 states have call predecessors, (13015), 13015 states have call successors, (13015) [2021-11-19 13:45:10,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56361 states to 56361 states and 78171 transitions. [2021-11-19 13:45:10,948 INFO L78 Accepts]: Start accepts. Automaton has 56361 states and 78171 transitions. Word has length 306 [2021-11-19 13:45:10,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:45:10,949 INFO L470 AbstractCegarLoop]: Abstraction has 56361 states and 78171 transitions. [2021-11-19 13:45:10,949 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 3 states have call successors, (40), 3 states have call predecessors, (40), 3 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) [2021-11-19 13:45:10,949 INFO L276 IsEmpty]: Start isEmpty. Operand 56361 states and 78171 transitions. [2021-11-19 13:45:10,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2021-11-19 13:45:10,975 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:45:10,976 INFO L514 BasicCegarLoop]: trace histogram [21, 21, 19, 19, 19, 19, 19, 19, 3, 3, 3, 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] [2021-11-19 13:45:11,051 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cffc2a2-3fc8-4abc-9987-74f41bc8fd2a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-19 13:45:11,198 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cffc2a2-3fc8-4abc-9987-74f41bc8fd2a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:45:11,198 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:45:11,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:45:11,199 INFO L85 PathProgramCache]: Analyzing trace with hash -887872562, now seen corresponding path program 1 times [2021-11-19 13:45:11,202 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:45:11,202 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [435115035] [2021-11-19 13:45:11,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:45:11,202 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:45:11,203 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cffc2a2-3fc8-4abc-9987-74f41bc8fd2a/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:45:11,205 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cffc2a2-3fc8-4abc-9987-74f41bc8fd2a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:45:11,245 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cffc2a2-3fc8-4abc-9987-74f41bc8fd2a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-19 13:45:14,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:45:14,839 INFO L263 TraceCheckSpWp]: Trace formula consists of 3027 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 13:45:14,849 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:45:15,761 INFO L134 CoverageAnalysis]: Checked inductivity of 1671 backedges. 120 proven. 0 refuted. 0 times theorem prover too weak. 1551 trivial. 0 not checked. [2021-11-19 13:45:15,761 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:45:16,671 INFO L134 CoverageAnalysis]: Checked inductivity of 1671 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1668 trivial. 0 not checked. [2021-11-19 13:45:16,672 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:45:16,672 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [435115035] [2021-11-19 13:45:16,672 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [435115035] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:45:16,672 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:45:16,673 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 13:45:16,673 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629928066] [2021-11-19 13:45:16,673 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:45:16,675 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 13:45:16,676 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:45:16,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 13:45:16,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 13:45:16,678 INFO L87 Difference]: Start difference. First operand 56361 states and 78171 transitions. Second operand has 4 states, 4 states have (on average 31.5) internal successors, (126), 4 states have internal predecessors, (126), 4 states have call successors, (44), 3 states have call predecessors, (44), 3 states have return successors, (42), 4 states have call predecessors, (42), 4 states have call successors, (42) [2021-11-19 13:45:18,996 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:45:27,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:45:27,031 INFO L93 Difference]: Finished difference Result 167311 states and 231328 transitions. [2021-11-19 13:45:27,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 13:45:27,032 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.5) internal successors, (126), 4 states have internal predecessors, (126), 4 states have call successors, (44), 3 states have call predecessors, (44), 3 states have return successors, (42), 4 states have call predecessors, (42), 4 states have call successors, (42) Word has length 310 [2021-11-19 13:45:27,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:45:27,591 INFO L225 Difference]: With dead ends: 167311 [2021-11-19 13:45:27,591 INFO L226 Difference]: Without dead ends: 110993 [2021-11-19 13:45:27,767 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 618 GetRequests, 616 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 13:45:27,768 INFO L933 BasicCegarLoop]: 2330 mSDtfsCounter, 2766 mSDsluCounter, 2869 mSDsCounter, 0 mSdLazyCounter, 682 mSolverCounterSat, 191 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2766 SdHoareTripleChecker+Valid, 5199 SdHoareTripleChecker+Invalid, 874 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 191 IncrementalHoareTripleChecker+Valid, 682 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2021-11-19 13:45:27,769 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2766 Valid, 5199 Invalid, 874 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [191 Valid, 682 Invalid, 1 Unknown, 0 Unchecked, 6.5s Time] [2021-11-19 13:45:27,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110993 states. [2021-11-19 13:45:32,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110993 to 110989. [2021-11-19 13:45:32,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110989 states, 79248 states have (on average 1.2956920048455483) internal successors, (102681), 80069 states have internal predecessors, (102681), 25229 states have call successors, (25229), 6511 states have call predecessors, (25229), 6511 states have return successors, (25229), 24889 states have call predecessors, (25229), 25229 states have call successors, (25229) [2021-11-19 13:45:33,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110989 states to 110989 states and 153139 transitions. [2021-11-19 13:45:33,804 INFO L78 Accepts]: Start accepts. Automaton has 110989 states and 153139 transitions. Word has length 310 [2021-11-19 13:45:33,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:45:33,805 INFO L470 AbstractCegarLoop]: Abstraction has 110989 states and 153139 transitions. [2021-11-19 13:45:33,805 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.5) internal successors, (126), 4 states have internal predecessors, (126), 4 states have call successors, (44), 3 states have call predecessors, (44), 3 states have return successors, (42), 4 states have call predecessors, (42), 4 states have call successors, (42) [2021-11-19 13:45:33,805 INFO L276 IsEmpty]: Start isEmpty. Operand 110989 states and 153139 transitions. [2021-11-19 13:45:33,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2021-11-19 13:45:33,816 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:45:33,816 INFO L514 BasicCegarLoop]: trace histogram [20, 20, 19, 19, 19, 19, 19, 19, 5, 5, 5, 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, 1, 1, 1] [2021-11-19 13:45:33,884 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cffc2a2-3fc8-4abc-9987-74f41bc8fd2a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Ended with exit code 0 [2021-11-19 13:45:34,038 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cffc2a2-3fc8-4abc-9987-74f41bc8fd2a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:45:34,039 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:45:34,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:45:34,039 INFO L85 PathProgramCache]: Analyzing trace with hash 1483173937, now seen corresponding path program 1 times [2021-11-19 13:45:34,041 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:45:34,042 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1375490885] [2021-11-19 13:45:34,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:45:34,042 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:45:34,042 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cffc2a2-3fc8-4abc-9987-74f41bc8fd2a/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:45:34,043 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cffc2a2-3fc8-4abc-9987-74f41bc8fd2a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:45:34,044 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cffc2a2-3fc8-4abc-9987-74f41bc8fd2a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-19 13:45:37,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:45:37,214 INFO L263 TraceCheckSpWp]: Trace formula consists of 3095 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 13:45:37,221 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:45:38,190 INFO L134 CoverageAnalysis]: Checked inductivity of 1647 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 1590 trivial. 0 not checked. [2021-11-19 13:45:38,191 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:45:38,953 INFO L134 CoverageAnalysis]: Checked inductivity of 1647 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1647 trivial. 0 not checked. [2021-11-19 13:45:38,954 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:45:38,954 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1375490885] [2021-11-19 13:45:38,954 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1375490885] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:45:38,954 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:45:38,954 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-19 13:45:38,954 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465625949] [2021-11-19 13:45:38,954 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:45:38,955 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 13:45:38,955 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:45:38,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 13:45:38,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 13:45:38,956 INFO L87 Difference]: Start difference. First operand 110989 states and 153139 transitions. Second operand has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 3 states have call successors, (48), 3 states have call predecessors, (48), 3 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) [2021-11-19 13:45:41,143 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:45:47,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:45:47,869 INFO L93 Difference]: Finished difference Result 310387 states and 426779 transitions. [2021-11-19 13:45:47,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 13:45:47,870 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 3 states have call successors, (48), 3 states have call predecessors, (48), 3 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) Word has length 330 [2021-11-19 13:45:47,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:45:49,273 INFO L225 Difference]: With dead ends: 310387 [2021-11-19 13:45:49,273 INFO L226 Difference]: Without dead ends: 199441 [2021-11-19 13:45:49,507 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 658 GetRequests, 657 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 13:45:49,508 INFO L933 BasicCegarLoop]: 2564 mSDtfsCounter, 1610 mSDsluCounter, 1813 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 12 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1610 SdHoareTripleChecker+Valid, 4377 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2021-11-19 13:45:49,508 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1610 Valid, 4377 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 44 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2021-11-19 13:45:49,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199441 states.