./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--char--ipmi--ipmi_msghandler.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73d778b-ac0e-4de9-9856-f595d2cd3bab/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73d778b-ac0e-4de9-9856-f595d2cd3bab/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73d778b-ac0e-4de9-9856-f595d2cd3bab/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73d778b-ac0e-4de9-9856-f595d2cd3bab/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--char--ipmi--ipmi_msghandler.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73d778b-ac0e-4de9-9856-f595d2cd3bab/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73d778b-ac0e-4de9-9856-f595d2cd3bab/bin/utaipan-UUZaoUuFF8 --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 2c13f17bef293e22dbc8fc00ce80e620ba1259ce3bd9f704a30527baafc650b9 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 00:59:10,865 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 00:59:10,867 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 00:59:10,923 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 00:59:10,924 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 00:59:10,925 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 00:59:10,927 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 00:59:10,930 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 00:59:10,932 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 00:59:10,933 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 00:59:10,935 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 00:59:10,936 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 00:59:10,937 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 00:59:10,938 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 00:59:10,940 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 00:59:10,942 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 00:59:10,943 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 00:59:10,945 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 00:59:10,947 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 00:59:10,950 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 00:59:10,952 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 00:59:10,954 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 00:59:10,961 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 00:59:10,964 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 00:59:10,968 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 00:59:10,976 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 00:59:10,977 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 00:59:10,978 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 00:59:10,983 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 00:59:10,984 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 00:59:10,985 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 00:59:10,985 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 00:59:10,986 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 00:59:10,987 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 00:59:10,987 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 00:59:10,988 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 00:59:10,989 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 00:59:10,989 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 00:59:10,989 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 00:59:10,990 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 00:59:10,991 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 00:59:10,992 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73d778b-ac0e-4de9-9856-f595d2cd3bab/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-07 00:59:11,036 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 00:59:11,037 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 00:59:11,038 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 00:59:11,038 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 00:59:11,039 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 00:59:11,040 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 00:59:11,040 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 00:59:11,040 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 00:59:11,040 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 00:59:11,040 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 00:59:11,042 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 00:59:11,042 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 00:59:11,042 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 00:59:11,042 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 00:59:11,043 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 00:59:11,043 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 00:59:11,044 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 00:59:11,044 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 00:59:11,044 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 00:59:11,044 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 00:59:11,044 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 00:59:11,045 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 00:59:11,045 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 00:59:11,045 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 00:59:11,045 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 00:59:11,045 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 00:59:11,046 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 00:59:11,046 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 00:59:11,046 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 00:59:11,048 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 00:59:11,048 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 00:59:11,049 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 00:59:11,049 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 00:59:11,049 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 00:59:11,049 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 00:59:11,049 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 00:59:11,050 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_f73d778b-ac0e-4de9-9856-f595d2cd3bab/bin/utaipan-UUZaoUuFF8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73d778b-ac0e-4de9-9856-f595d2cd3bab/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2c13f17bef293e22dbc8fc00ce80e620ba1259ce3bd9f704a30527baafc650b9 [2021-11-07 00:59:11,344 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 00:59:11,368 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 00:59:11,371 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 00:59:11,372 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 00:59:11,373 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 00:59:11,374 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73d778b-ac0e-4de9-9856-f595d2cd3bab/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--char--ipmi--ipmi_msghandler.ko-entry_point.cil.out.i [2021-11-07 00:59:11,465 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73d778b-ac0e-4de9-9856-f595d2cd3bab/bin/utaipan-UUZaoUuFF8/data/a176ae182/fe77989f2ff84c86a9befab1a0f4026b/FLAG310f9c127 [2021-11-07 00:59:12,486 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 00:59:12,486 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73d778b-ac0e-4de9-9856-f595d2cd3bab/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--char--ipmi--ipmi_msghandler.ko-entry_point.cil.out.i [2021-11-07 00:59:12,526 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73d778b-ac0e-4de9-9856-f595d2cd3bab/bin/utaipan-UUZaoUuFF8/data/a176ae182/fe77989f2ff84c86a9befab1a0f4026b/FLAG310f9c127 [2021-11-07 00:59:12,879 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73d778b-ac0e-4de9-9856-f595d2cd3bab/bin/utaipan-UUZaoUuFF8/data/a176ae182/fe77989f2ff84c86a9befab1a0f4026b [2021-11-07 00:59:12,882 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 00:59:12,884 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 00:59:12,886 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 00:59:12,887 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 00:59:12,890 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 00:59:12,891 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:59:12" (1/1) ... [2021-11-07 00:59:12,892 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4efeb047 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:59:12, skipping insertion in model container [2021-11-07 00:59:12,893 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:59:12" (1/1) ... [2021-11-07 00:59:12,901 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 00:59:13,136 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 00:59:14,091 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 00:59:14,601 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 00:59:14,842 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 00:59:14,843 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 00:59:14,843 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 00:59:14,850 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 00:59:14,851 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 00:59:14,853 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 00:59:14,862 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 00:59:14,863 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 00:59:14,864 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 00:59:14,873 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 00:59:14,876 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 00:59:14,879 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 00:59:14,881 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 00:59:14,882 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 00:59:14,886 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 00:59:14,888 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 00:59:14,890 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 00:59:14,893 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 00:59:14,911 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 00:59:14,914 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 00:59:15,021 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 00:59:15,024 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 00:59:15,034 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 00:59:15,045 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 00:59:15,052 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 00:59:15,058 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 00:59:15,059 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 00:59:15,095 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 00:59:15,095 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 00:59:15,096 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 00:59:15,099 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 00:59:15,100 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 00:59:15,101 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 00:59:15,108 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 00:59:15,113 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 00:59:15,120 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 00:59:15,122 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 00:59:15,285 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 00:59:15,291 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 00:59:15,296 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 00:59:15,303 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 00:59:15,308 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 00:59:15,314 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 00:59:15,321 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 00:59:15,328 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 00:59:15,334 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 00:59:15,341 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 00:59:15,347 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 00:59:15,353 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 00:59:15,359 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 00:59:15,365 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 00:59:15,372 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 00:59:15,379 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 00:59:15,384 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 00:59:15,407 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 00:59:15,426 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 00:59:15,447 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 00:59:15,448 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 00:59:15,465 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 00:59:15,468 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 00:59:15,469 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 00:59:15,470 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 00:59:15,471 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 00:59:15,478 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 00:59:15,497 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 00:59:15,530 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 00:59:15,530 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 00:59:15,531 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 00:59:15,532 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 00:59:15,533 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 00:59:15,534 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 00:59:15,534 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 00:59:15,535 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 00:59:15,553 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 00:59:15,555 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 00:59:15,556 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 00:59:15,558 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 00:59:15,583 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 00:59:15,583 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 00:59:15,584 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 00:59:15,595 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 00:59:15,615 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 00:59:15,658 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 00:59:15,659 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 00:59:15,661 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 00:59:15,665 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 00:59:15,671 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 00:59:15,673 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 00:59:15,727 WARN L228 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_f73d778b-ac0e-4de9-9856-f595d2cd3bab/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--char--ipmi--ipmi_msghandler.ko-entry_point.cil.out.i[299705,299718] [2021-11-07 00:59:15,785 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 00:59:15,857 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) [2021-11-07 00:59:15,859 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@854e3df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:59:15, skipping insertion in model container [2021-11-07 00:59:15,859 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 00:59:15,859 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-07 00:59:15,863 INFO L168 Benchmark]: Toolchain (without parser) took 2976.43 ms. Allocated memory was 102.8 MB in the beginning and 140.5 MB in the end (delta: 37.7 MB). Free memory was 62.3 MB in the beginning and 77.2 MB in the end (delta: -14.9 MB). Peak memory consumption was 45.6 MB. Max. memory is 16.1 GB. [2021-11-07 00:59:15,864 INFO L168 Benchmark]: CDTParser took 0.36 ms. Allocated memory is still 79.7 MB. Free memory was 44.7 MB in the beginning and 44.6 MB in the end (delta: 62.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 00:59:15,866 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2972.90 ms. Allocated memory was 102.8 MB in the beginning and 140.5 MB in the end (delta: 37.7 MB). Free memory was 62.1 MB in the beginning and 77.2 MB in the end (delta: -15.1 MB). Peak memory consumption was 45.6 MB. Max. memory is 16.1 GB. [2021-11-07 00:59:15,868 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36 ms. Allocated memory is still 79.7 MB. Free memory was 44.7 MB in the beginning and 44.6 MB in the end (delta: 62.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 2972.90 ms. Allocated memory was 102.8 MB in the beginning and 140.5 MB in the end (delta: 37.7 MB). Free memory was 62.1 MB in the beginning and 77.2 MB in the end (delta: -15.1 MB). Peak memory consumption was 45.6 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 3512]: 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_f73d778b-ac0e-4de9-9856-f595d2cd3bab/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73d778b-ac0e-4de9-9856-f595d2cd3bab/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73d778b-ac0e-4de9-9856-f595d2cd3bab/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73d778b-ac0e-4de9-9856-f595d2cd3bab/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--char--ipmi--ipmi_msghandler.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73d778b-ac0e-4de9-9856-f595d2cd3bab/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73d778b-ac0e-4de9-9856-f595d2cd3bab/bin/utaipan-UUZaoUuFF8 --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 2c13f17bef293e22dbc8fc00ce80e620ba1259ce3bd9f704a30527baafc650b9 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 00:59:18,086 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 00:59:18,088 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 00:59:18,138 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 00:59:18,139 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 00:59:18,143 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 00:59:18,146 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 00:59:18,151 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 00:59:18,155 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 00:59:18,163 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 00:59:18,165 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 00:59:18,168 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 00:59:18,168 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 00:59:18,172 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 00:59:18,175 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 00:59:18,180 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 00:59:18,182 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 00:59:18,184 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 00:59:18,186 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 00:59:18,196 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 00:59:18,199 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 00:59:18,201 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 00:59:18,204 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 00:59:18,208 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 00:59:18,219 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 00:59:18,220 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 00:59:18,220 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 00:59:18,223 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 00:59:18,224 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 00:59:18,225 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 00:59:18,226 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 00:59:18,228 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 00:59:18,230 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 00:59:18,231 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 00:59:18,233 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 00:59:18,234 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 00:59:18,235 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 00:59:18,236 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 00:59:18,243 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 00:59:18,246 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 00:59:18,247 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 00:59:18,248 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73d778b-ac0e-4de9-9856-f595d2cd3bab/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-07 00:59:18,299 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 00:59:18,299 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 00:59:18,300 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 00:59:18,301 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 00:59:18,301 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 00:59:18,301 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 00:59:18,302 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 00:59:18,302 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 00:59:18,302 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 00:59:18,303 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 00:59:18,303 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 00:59:18,304 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 00:59:18,304 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 00:59:18,304 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 00:59:18,304 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 00:59:18,305 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-07 00:59:18,305 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-07 00:59:18,305 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 00:59:18,306 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 00:59:18,306 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 00:59:18,306 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 00:59:18,306 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 00:59:18,307 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 00:59:18,307 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 00:59:18,307 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 00:59:18,308 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 00:59:18,308 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 00:59:18,308 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-07 00:59:18,308 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-07 00:59:18,309 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 00:59:18,309 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 00:59:18,309 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 00:59:18,309 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_f73d778b-ac0e-4de9-9856-f595d2cd3bab/bin/utaipan-UUZaoUuFF8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73d778b-ac0e-4de9-9856-f595d2cd3bab/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2c13f17bef293e22dbc8fc00ce80e620ba1259ce3bd9f704a30527baafc650b9 [2021-11-07 00:59:18,693 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 00:59:18,734 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 00:59:18,738 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 00:59:18,741 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 00:59:18,741 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 00:59:18,742 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73d778b-ac0e-4de9-9856-f595d2cd3bab/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--char--ipmi--ipmi_msghandler.ko-entry_point.cil.out.i [2021-11-07 00:59:18,828 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73d778b-ac0e-4de9-9856-f595d2cd3bab/bin/utaipan-UUZaoUuFF8/data/f1a3ed6c7/94f8120337a645668784906ac9d46655/FLAGcfadf6914 [2021-11-07 00:59:19,915 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 00:59:19,915 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73d778b-ac0e-4de9-9856-f595d2cd3bab/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--char--ipmi--ipmi_msghandler.ko-entry_point.cil.out.i [2021-11-07 00:59:19,975 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73d778b-ac0e-4de9-9856-f595d2cd3bab/bin/utaipan-UUZaoUuFF8/data/f1a3ed6c7/94f8120337a645668784906ac9d46655/FLAGcfadf6914 [2021-11-07 00:59:20,273 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73d778b-ac0e-4de9-9856-f595d2cd3bab/bin/utaipan-UUZaoUuFF8/data/f1a3ed6c7/94f8120337a645668784906ac9d46655 [2021-11-07 00:59:20,277 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 00:59:20,279 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 00:59:20,297 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 00:59:20,297 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 00:59:20,301 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 00:59:20,301 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:59:20" (1/1) ... [2021-11-07 00:59:20,302 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5284c252 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:59:20, skipping insertion in model container [2021-11-07 00:59:20,303 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:59:20" (1/1) ... [2021-11-07 00:59:20,311 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 00:59:20,512 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 00:59:23,442 WARN L228 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_f73d778b-ac0e-4de9-9856-f595d2cd3bab/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--char--ipmi--ipmi_msghandler.ko-entry_point.cil.out.i[299705,299718] [2021-11-07 00:59:23,516 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 00:59:23,637 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-07 00:59:23,717 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 00:59:24,119 WARN L228 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_f73d778b-ac0e-4de9-9856-f595d2cd3bab/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--char--ipmi--ipmi_msghandler.ko-entry_point.cil.out.i[299705,299718] [2021-11-07 00:59:24,126 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 00:59:24,194 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 00:59:24,768 WARN L228 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_f73d778b-ac0e-4de9-9856-f595d2cd3bab/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--char--ipmi--ipmi_msghandler.ko-entry_point.cil.out.i[299705,299718] [2021-11-07 00:59:24,792 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 00:59:25,033 INFO L208 MainTranslator]: Completed translation [2021-11-07 00:59:25,034 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:59:25 WrapperNode [2021-11-07 00:59:25,034 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 00:59:25,036 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 00:59:25,036 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 00:59:25,036 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 00:59:25,043 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:59:25" (1/1) ... [2021-11-07 00:59:25,187 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:59:25" (1/1) ... [2021-11-07 00:59:25,815 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 00:59:25,817 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 00:59:25,817 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 00:59:25,817 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 00:59:25,826 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:59:25" (1/1) ... [2021-11-07 00:59:25,827 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:59:25" (1/1) ... [2021-11-07 00:59:26,000 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:59:25" (1/1) ... [2021-11-07 00:59:26,001 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:59:25" (1/1) ... [2021-11-07 00:59:26,688 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:59:25" (1/1) ... [2021-11-07 00:59:26,801 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:59:25" (1/1) ... [2021-11-07 00:59:26,853 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:59:25" (1/1) ... [2021-11-07 00:59:26,945 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 00:59:26,946 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 00:59:26,947 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 00:59:26,947 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 00:59:26,948 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:59:25" (1/1) ... [2021-11-07 00:59:26,956 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 00:59:26,968 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73d778b-ac0e-4de9-9856-f595d2cd3bab/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 00:59:26,982 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73d778b-ac0e-4de9-9856-f595d2cd3bab/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 00:59:26,995 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73d778b-ac0e-4de9-9856-f595d2cd3bab/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 00:59:27,031 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-07 00:59:27,031 INFO L130 BoogieDeclarations]: Found specification of procedure __cmpxchg_wrong_size [2021-11-07 00:59:27,032 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2021-11-07 00:59:27,032 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2021-11-07 00:59:27,032 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-07 00:59:27,032 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-07 00:59:27,032 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-07 00:59:27,033 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-07 00:59:27,033 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_smi_msg_received [2021-11-07 00:59:27,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_smi_msg_received [2021-11-07 00:59:27,033 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-07 00:59:27,033 INFO L130 BoogieDeclarations]: Found specification of procedure handle_read_event_rsp [2021-11-07 00:59:27,033 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_read_event_rsp [2021-11-07 00:59:27,034 INFO L130 BoogieDeclarations]: Found specification of procedure handle_ipmb_get_msg_cmd [2021-11-07 00:59:27,034 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_ipmb_get_msg_cmd [2021-11-07 00:59:27,034 INFO L130 BoogieDeclarations]: Found specification of procedure handle_lan_get_msg_cmd [2021-11-07 00:59:27,034 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_lan_get_msg_cmd [2021-11-07 00:59:27,034 INFO L130 BoogieDeclarations]: Found specification of procedure handle_bmc_rsp [2021-11-07 00:59:27,034 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_bmc_rsp [2021-11-07 00:59:27,035 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_free_smi_msg [2021-11-07 00:59:27,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_free_smi_msg [2021-11-07 00:59:27,035 INFO L130 BoogieDeclarations]: Found specification of procedure handle_oem_get_msg_cmd [2021-11-07 00:59:27,035 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_oem_get_msg_cmd [2021-11-07 00:59:27,035 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 00:59:27,035 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 00:59:27,036 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2021-11-07 00:59:27,036 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-07 00:59:27,036 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-07 00:59:27,036 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-07 00:59:27,036 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 00:59:27,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-07 00:59:27,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 00:59:27,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2021-11-07 00:59:27,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-07 00:59:27,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-07 00:59:27,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-07 00:59:27,038 INFO L130 BoogieDeclarations]: Found specification of procedure free_smi_msg_list [2021-11-07 00:59:27,038 INFO L138 BoogieDeclarations]: Found implementation of procedure free_smi_msg_list [2021-11-07 00:59:27,038 INFO L130 BoogieDeclarations]: Found specification of procedure clean_up_interface_data [2021-11-07 00:59:27,038 INFO L138 BoogieDeclarations]: Found implementation of procedure clean_up_interface_data [2021-11-07 00:59:27,038 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~~ipmi_smi_t~0~X~$Pointer$~TO~VOID [2021-11-07 00:59:27,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~~ipmi_smi_t~0~X~$Pointer$~TO~VOID [2021-11-07 00:59:27,039 INFO L130 BoogieDeclarations]: Found specification of procedure handle_ipmb_get_msg_rsp [2021-11-07 00:59:27,039 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_ipmb_get_msg_rsp [2021-11-07 00:59:27,039 INFO L130 BoogieDeclarations]: Found specification of procedure deliver_err_response [2021-11-07 00:59:27,039 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver_err_response [2021-11-07 00:59:27,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-07 00:59:27,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-07 00:59:27,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-07 00:59:27,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-07 00:59:27,040 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2021-11-07 00:59:27,040 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2021-11-07 00:59:27,040 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 00:59:27,041 INFO L130 BoogieDeclarations]: Found specification of procedure handle_lan_get_msg_rsp [2021-11-07 00:59:27,041 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_lan_get_msg_rsp [2021-11-07 00:59:27,041 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 00:59:27,041 INFO L130 BoogieDeclarations]: Found specification of procedure free_recv_msg_list [2021-11-07 00:59:27,041 INFO L138 BoogieDeclarations]: Found implementation of procedure free_recv_msg_list [2021-11-07 00:59:27,041 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-07 00:59:27,042 INFO L130 BoogieDeclarations]: Found specification of procedure handle_one_recv_msg [2021-11-07 00:59:27,042 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_one_recv_msg [2021-11-07 00:59:27,042 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-07 00:59:27,042 INFO L130 BoogieDeclarations]: Found specification of procedure intf_err_seq [2021-11-07 00:59:27,042 INFO L138 BoogieDeclarations]: Found implementation of procedure intf_err_seq [2021-11-07 00:59:27,043 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-07 00:59:27,043 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-07 00:59:27,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-07 00:59:27,043 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-07 00:59:27,043 INFO L130 BoogieDeclarations]: Found specification of procedure handle_new_recv_msgs [2021-11-07 00:59:27,043 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_new_recv_msgs [2021-11-07 00:59:27,044 INFO L130 BoogieDeclarations]: Found specification of procedure intf_free [2021-11-07 00:59:27,044 INFO L138 BoogieDeclarations]: Found implementation of procedure intf_free [2021-11-07 00:59:27,044 INFO L130 BoogieDeclarations]: Found specification of procedure smi_recv_tasklet [2021-11-07 00:59:27,044 INFO L138 BoogieDeclarations]: Found implementation of procedure smi_recv_tasklet [2021-11-07 00:59:27,044 INFO L130 BoogieDeclarations]: Found specification of procedure deliver_response [2021-11-07 00:59:27,044 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver_response [2021-11-07 00:59:27,045 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-07 00:59:27,045 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_free_recv_msg [2021-11-07 00:59:27,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_free_recv_msg [2021-11-07 00:59:27,045 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2021-11-07 00:59:27,045 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 00:59:27,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 01:05:52,771 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 01:05:52,771 INFO L299 CfgBuilder]: Removed 3536 assume(true) statements. [2021-11-07 01:05:52,780 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:05:52 BoogieIcfgContainer [2021-11-07 01:05:52,781 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 01:05:52,782 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 01:05:52,783 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 01:05:52,786 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 01:05:52,786 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:59:20" (1/3) ... [2021-11-07 01:05:52,787 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dec0faf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:05:52, skipping insertion in model container [2021-11-07 01:05:52,787 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:59:25" (2/3) ... [2021-11-07 01:05:52,788 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dec0faf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:05:52, skipping insertion in model container [2021-11-07 01:05:52,788 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:05:52" (3/3) ... [2021-11-07 01:05:52,789 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--char--ipmi--ipmi_msghandler.ko-entry_point.cil.out.i [2021-11-07 01:05:52,795 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 01:05:52,795 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 19 error locations. [2021-11-07 01:05:52,868 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 01:05:52,874 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 [2021-11-07 01:05:52,874 INFO L340 AbstractCegarLoop]: Starting to check reachability of 19 error locations. [2021-11-07 01:05:52,960 INFO L276 IsEmpty]: Start isEmpty. Operand has 4153 states, 4029 states have (on average 1.5368577810871185) internal successors, (6192), 4069 states have internal predecessors, (6192), 80 states have call successors, (80), 24 states have call predecessors, (80), 24 states have return successors, (80), 78 states have call predecessors, (80), 80 states have call successors, (80) [2021-11-07 01:05:52,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2021-11-07 01:05:52,991 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:05:52,992 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:05:52,993 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [handle_oem_get_msg_cmdErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~~ipmi_smi_t~0~X~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-07 01:05:52,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:05:52,998 INFO L85 PathProgramCache]: Analyzing trace with hash -889034556, now seen corresponding path program 1 times [2021-11-07 01:05:53,030 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:05:53,030 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2139172651] [2021-11-07 01:05:53,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:05:53,032 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:05:53,032 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73d778b-ac0e-4de9-9856-f595d2cd3bab/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:05:53,035 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73d778b-ac0e-4de9-9856-f595d2cd3bab/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:05:53,043 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73d778b-ac0e-4de9-9856-f595d2cd3bab/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-07 01:06:03,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:06:04,274 INFO L263 TraceCheckSpWp]: Trace formula consists of 3911 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-07 01:06:04,305 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:06:05,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:06:05,578 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:06:06,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:06:06,789 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:06:06,790 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2139172651] [2021-11-07 01:06:06,790 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2139172651] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:06:06,790 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:06:06,791 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-07 01:06:06,793 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988210477] [2021-11-07 01:06:06,799 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 01:06:06,799 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:06:06,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 01:06:06,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 01:06:06,825 INFO L87 Difference]: Start difference. First operand has 4153 states, 4029 states have (on average 1.5368577810871185) internal successors, (6192), 4069 states have internal predecessors, (6192), 80 states have call successors, (80), 24 states have call predecessors, (80), 24 states have return successors, (80), 78 states have call predecessors, (80), 80 states have call successors, (80) Second operand has 2 states, 2 states have (on average 111.0) internal successors, (222), 2 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:06:07,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:06:07,043 INFO L93 Difference]: Finished difference Result 8302 states and 12730 transitions. [2021-11-07 01:06:07,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 01:06:07,045 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 111.0) internal successors, (222), 2 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 222 [2021-11-07 01:06:07,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:06:07,088 INFO L225 Difference]: With dead ends: 8302 [2021-11-07 01:06:07,088 INFO L226 Difference]: Without dead ends: 4113 [2021-11-07 01:06:07,105 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 442 GetRequests, 442 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 01:06:07,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4113 states. [2021-11-07 01:06:07,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4113 to 4113. [2021-11-07 01:06:07,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4113 states, 3990 states have (on average 1.5132832080200502) internal successors, (6038), 4029 states have internal predecessors, (6038), 80 states have call successors, (80), 24 states have call predecessors, (80), 24 states have return successors, (80), 78 states have call predecessors, (80), 80 states have call successors, (80) [2021-11-07 01:06:07,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4113 states to 4113 states and 6198 transitions. [2021-11-07 01:06:07,329 INFO L78 Accepts]: Start accepts. Automaton has 4113 states and 6198 transitions. Word has length 222 [2021-11-07 01:06:07,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:06:07,330 INFO L470 AbstractCegarLoop]: Abstraction has 4113 states and 6198 transitions. [2021-11-07 01:06:07,330 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 111.0) internal successors, (222), 2 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:06:07,330 INFO L276 IsEmpty]: Start isEmpty. Operand 4113 states and 6198 transitions. [2021-11-07 01:06:07,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2021-11-07 01:06:07,335 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:06:07,336 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:06:07,457 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73d778b-ac0e-4de9-9856-f595d2cd3bab/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-11-07 01:06:07,548 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73d778b-ac0e-4de9-9856-f595d2cd3bab/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:06:07,550 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [handle_oem_get_msg_cmdErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~~ipmi_smi_t~0~X~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-07 01:06:07,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:06:07,551 INFO L85 PathProgramCache]: Analyzing trace with hash -811122806, now seen corresponding path program 1 times [2021-11-07 01:06:07,563 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:06:07,563 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [694365587] [2021-11-07 01:06:07,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:06:07,564 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:06:07,564 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73d778b-ac0e-4de9-9856-f595d2cd3bab/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:06:07,565 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73d778b-ac0e-4de9-9856-f595d2cd3bab/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:06:07,583 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73d778b-ac0e-4de9-9856-f595d2cd3bab/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-07 01:06:19,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:06:19,794 INFO L263 TraceCheckSpWp]: Trace formula consists of 3911 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 01:06:19,803 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:06:20,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:06:20,617 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:06:21,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:06:21,340 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:06:21,340 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [694365587] [2021-11-07 01:06:21,340 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [694365587] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:06:21,340 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:06:21,341 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 01:06:21,341 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927936543] [2021-11-07 01:06:21,343 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:06:21,343 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:06:21,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:06:21,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:06:21,345 INFO L87 Difference]: Start difference. First operand 4113 states and 6198 transitions. Second operand has 4 states, 4 states have (on average 56.0) internal successors, (224), 4 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:06:22,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:06:22,147 INFO L93 Difference]: Finished difference Result 8080 states and 12267 transitions. [2021-11-07 01:06:22,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 01:06:22,148 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 56.0) internal successors, (224), 4 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 222 [2021-11-07 01:06:22,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:06:22,179 INFO L225 Difference]: With dead ends: 8080 [2021-11-07 01:06:22,179 INFO L226 Difference]: Without dead ends: 4131 [2021-11-07 01:06:22,192 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 442 GetRequests, 440 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:06:22,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4131 states. [2021-11-07 01:06:22,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4131 to 4131. [2021-11-07 01:06:22,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4131 states, 4008 states have (on average 1.5109780439121756) internal successors, (6056), 4047 states have internal predecessors, (6056), 80 states have call successors, (80), 24 states have call predecessors, (80), 24 states have return successors, (80), 78 states have call predecessors, (80), 80 states have call successors, (80) [2021-11-07 01:06:22,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4131 states to 4131 states and 6216 transitions. [2021-11-07 01:06:22,349 INFO L78 Accepts]: Start accepts. Automaton has 4131 states and 6216 transitions. Word has length 222 [2021-11-07 01:06:22,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:06:22,352 INFO L470 AbstractCegarLoop]: Abstraction has 4131 states and 6216 transitions. [2021-11-07 01:06:22,352 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 56.0) internal successors, (224), 4 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:06:22,353 INFO L276 IsEmpty]: Start isEmpty. Operand 4131 states and 6216 transitions. [2021-11-07 01:06:22,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2021-11-07 01:06:22,357 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:06:22,358 INFO L513 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:06:22,492 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73d778b-ac0e-4de9-9856-f595d2cd3bab/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-07 01:06:22,580 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73d778b-ac0e-4de9-9856-f595d2cd3bab/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:06:22,581 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [handle_oem_get_msg_cmdErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~~ipmi_smi_t~0~X~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-07 01:06:22,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:06:22,582 INFO L85 PathProgramCache]: Analyzing trace with hash 947390792, now seen corresponding path program 1 times [2021-11-07 01:06:22,587 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:06:22,587 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [191627032] [2021-11-07 01:06:22,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:06:22,588 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:06:22,588 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73d778b-ac0e-4de9-9856-f595d2cd3bab/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:06:22,590 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73d778b-ac0e-4de9-9856-f595d2cd3bab/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:06:22,632 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73d778b-ac0e-4de9-9856-f595d2cd3bab/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-07 01:06:35,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:06:35,587 INFO L263 TraceCheckSpWp]: Trace formula consists of 4001 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-07 01:06:35,594 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:06:36,617 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-11-07 01:06:36,617 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:06:37,684 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-11-07 01:06:37,684 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:06:37,684 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [191627032] [2021-11-07 01:06:37,684 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [191627032] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 01:06:37,685 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [779898548] [2021-11-07 01:06:37,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:06:37,685 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-07 01:06:37,685 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73d778b-ac0e-4de9-9856-f595d2cd3bab/bin/utaipan-UUZaoUuFF8/cvc4 [2021-11-07 01:06:37,694 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73d778b-ac0e-4de9-9856-f595d2cd3bab/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-07 01:06:37,722 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73d778b-ac0e-4de9-9856-f595d2cd3bab/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2021-11-07 01:06:40,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:06:40,978 INFO L263 TraceCheckSpWp]: Trace formula consists of 4001 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 01:06:40,985 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:06:41,625 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-11-07 01:06:41,625 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:06:42,179 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-11-07 01:06:42,180 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [779898548] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:06:42,180 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2021-11-07 01:06:42,180 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [5, 5] total 9 [2021-11-07 01:06:42,181 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585764232] [2021-11-07 01:06:42,181 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 01:06:42,182 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:06:42,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 01:06:42,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-11-07 01:06:42,183 INFO L87 Difference]: Start difference. First operand 4131 states and 6216 transitions. Second operand has 3 states, 3 states have (on average 77.66666666666667) internal successors, (233), 3 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:06:43,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:06:43,003 INFO L93 Difference]: Finished difference Result 10463 states and 15904 transitions. [2021-11-07 01:06:43,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 01:06:43,009 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 77.66666666666667) internal successors, (233), 3 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 240 [2021-11-07 01:06:43,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:06:43,058 INFO L225 Difference]: With dead ends: 10463 [2021-11-07 01:06:43,060 INFO L226 Difference]: Without dead ends: 6547 [2021-11-07 01:06:43,072 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 956 GetRequests, 949 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-11-07 01:06:43,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6547 states. [2021-11-07 01:06:43,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6547 to 6498. [2021-11-07 01:06:43,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6498 states, 6291 states have (on average 1.5251947226196154) internal successors, (9595), 6347 states have internal predecessors, (9595), 140 states have call successors, (140), 48 states have call predecessors, (140), 48 states have return successors, (140), 136 states have call predecessors, (140), 140 states have call successors, (140) [2021-11-07 01:06:43,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6498 states to 6498 states and 9875 transitions. [2021-11-07 01:06:43,375 INFO L78 Accepts]: Start accepts. Automaton has 6498 states and 9875 transitions. Word has length 240 [2021-11-07 01:06:43,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:06:43,378 INFO L470 AbstractCegarLoop]: Abstraction has 6498 states and 9875 transitions. [2021-11-07 01:06:43,379 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 77.66666666666667) internal successors, (233), 3 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:06:43,379 INFO L276 IsEmpty]: Start isEmpty. Operand 6498 states and 9875 transitions. [2021-11-07 01:06:43,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2021-11-07 01:06:43,385 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:06:43,386 INFO L513 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:06:43,522 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73d778b-ac0e-4de9-9856-f595d2cd3bab/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-07 01:06:43,649 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73d778b-ac0e-4de9-9856-f595d2cd3bab/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (5)] Forceful destruction successful, exit code 0 [2021-11-07 01:06:43,809 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73d778b-ac0e-4de9-9856-f595d2cd3bab/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73d778b-ac0e-4de9-9856-f595d2cd3bab/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt [2021-11-07 01:06:43,809 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [handle_oem_get_msg_cmdErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~~ipmi_smi_t~0~X~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-07 01:06:43,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:06:43,810 INFO L85 PathProgramCache]: Analyzing trace with hash 402499883, now seen corresponding path program 1 times [2021-11-07 01:06:43,814 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:06:43,815 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [996244647] [2021-11-07 01:06:43,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:06:43,815 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:06:43,815 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73d778b-ac0e-4de9-9856-f595d2cd3bab/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:06:43,816 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73d778b-ac0e-4de9-9856-f595d2cd3bab/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:06:43,832 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73d778b-ac0e-4de9-9856-f595d2cd3bab/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-07 01:06:56,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:06:56,491 INFO L263 TraceCheckSpWp]: Trace formula consists of 3913 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-07 01:06:56,501 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:06:57,449 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-11-07 01:06:57,449 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:06:58,676 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-11-07 01:06:58,676 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:06:58,676 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [996244647] [2021-11-07 01:06:58,677 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [996244647] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 01:06:58,677 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1427918741] [2021-11-07 01:06:58,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:06:58,677 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-07 01:06:58,677 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73d778b-ac0e-4de9-9856-f595d2cd3bab/bin/utaipan-UUZaoUuFF8/cvc4 [2021-11-07 01:06:58,678 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73d778b-ac0e-4de9-9856-f595d2cd3bab/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-07 01:06:58,679 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73d778b-ac0e-4de9-9856-f595d2cd3bab/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2021-11-07 01:07:02,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:07:02,120 INFO L263 TraceCheckSpWp]: Trace formula consists of 3913 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 01:07:02,126 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:07:02,689 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-11-07 01:07:02,689 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:07:03,140 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-11-07 01:07:03,140 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1427918741] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:07:03,140 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2021-11-07 01:07:03,141 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [5, 5] total 9 [2021-11-07 01:07:03,141 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985327637] [2021-11-07 01:07:03,142 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 01:07:03,142 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:07:03,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 01:07:03,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-11-07 01:07:03,143 INFO L87 Difference]: Start difference. First operand 6498 states and 9875 transitions. Second operand has 3 states, 3 states have (on average 81.0) internal successors, (243), 3 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:07:03,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:07:03,747 INFO L93 Difference]: Finished difference Result 12721 states and 19392 transitions. [2021-11-07 01:07:03,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 01:07:03,748 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 81.0) internal successors, (243), 3 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 250 [2021-11-07 01:07:03,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:07:03,798 INFO L225 Difference]: With dead ends: 12721 [2021-11-07 01:07:03,798 INFO L226 Difference]: Without dead ends: 6438 [2021-11-07 01:07:03,816 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 996 GetRequests, 989 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-11-07 01:07:03,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6438 states. [2021-11-07 01:07:04,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6438 to 6426. [2021-11-07 01:07:04,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6426 states, 6219 states have (on average 1.5139089885833736) internal successors, (9415), 6275 states have internal predecessors, (9415), 140 states have call successors, (140), 48 states have call predecessors, (140), 48 states have return successors, (140), 136 states have call predecessors, (140), 140 states have call successors, (140) [2021-11-07 01:07:04,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6426 states to 6426 states and 9695 transitions. [2021-11-07 01:07:04,057 INFO L78 Accepts]: Start accepts. Automaton has 6426 states and 9695 transitions. Word has length 250 [2021-11-07 01:07:04,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:07:04,058 INFO L470 AbstractCegarLoop]: Abstraction has 6426 states and 9695 transitions. [2021-11-07 01:07:04,059 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 81.0) internal successors, (243), 3 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:07:04,059 INFO L276 IsEmpty]: Start isEmpty. Operand 6426 states and 9695 transitions. [2021-11-07 01:07:04,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2021-11-07 01:07:04,066 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:07:04,067 INFO L513 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:07:04,205 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73d778b-ac0e-4de9-9856-f595d2cd3bab/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-07 01:07:04,317 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73d778b-ac0e-4de9-9856-f595d2cd3bab/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 [2021-11-07 01:07:04,481 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73d778b-ac0e-4de9-9856-f595d2cd3bab/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73d778b-ac0e-4de9-9856-f595d2cd3bab/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt [2021-11-07 01:07:04,481 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [handle_oem_get_msg_cmdErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~~ipmi_smi_t~0~X~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-07 01:07:04,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:07:04,482 INFO L85 PathProgramCache]: Analyzing trace with hash -565034565, now seen corresponding path program 1 times [2021-11-07 01:07:04,487 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:07:04,487 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1987486495] [2021-11-07 01:07:04,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:07:04,488 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:07:04,493 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73d778b-ac0e-4de9-9856-f595d2cd3bab/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:07:04,494 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73d778b-ac0e-4de9-9856-f595d2cd3bab/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:07:04,532 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73d778b-ac0e-4de9-9856-f595d2cd3bab/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-07 01:07:17,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:07:17,837 INFO L263 TraceCheckSpWp]: Trace formula consists of 3917 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-07 01:07:17,844 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:07:18,840 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-11-07 01:07:18,840 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:07:19,912 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-11-07 01:07:19,912 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:07:19,912 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1987486495] [2021-11-07 01:07:19,913 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1987486495] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 01:07:19,913 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1927492993] [2021-11-07 01:07:19,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:07:19,913 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-07 01:07:19,913 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73d778b-ac0e-4de9-9856-f595d2cd3bab/bin/utaipan-UUZaoUuFF8/cvc4 [2021-11-07 01:07:19,914 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73d778b-ac0e-4de9-9856-f595d2cd3bab/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-07 01:07:19,931 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73d778b-ac0e-4de9-9856-f595d2cd3bab/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2021-11-07 01:07:23,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:07:24,086 INFO L263 TraceCheckSpWp]: Trace formula consists of 3917 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 01:07:24,094 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:07:24,781 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-11-07 01:07:24,782 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:07:25,382 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-11-07 01:07:25,383 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1927492993] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:07:25,383 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2021-11-07 01:07:25,384 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [5, 5] total 10 [2021-11-07 01:07:25,384 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542967323] [2021-11-07 01:07:25,385 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:07:25,385 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:07:25,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:07:25,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-11-07 01:07:25,386 INFO L87 Difference]: Start difference. First operand 6426 states and 9695 transitions. Second operand has 4 states, 4 states have (on average 63.75) internal successors, (255), 4 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:07:30,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:07:30,956 INFO L93 Difference]: Finished difference Result 24583 states and 37519 transitions. [2021-11-07 01:07:30,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 01:07:30,958 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 63.75) internal successors, (255), 4 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 252 [2021-11-07 01:07:30,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:07:31,080 INFO L225 Difference]: With dead ends: 24583 [2021-11-07 01:07:31,081 INFO L226 Difference]: Without dead ends: 18372 [2021-11-07 01:07:31,104 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 1004 GetRequests, 996 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-11-07 01:07:31,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18372 states. [2021-11-07 01:07:31,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18372 to 18298. [2021-11-07 01:07:31,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18298 states, 17721 states have (on average 1.5229953162914056) internal successors, (26989), 17851 states have internal predecessors, (26989), 414 states have call successors, (414), 144 states have call predecessors, (414), 144 states have return successors, (528), 402 states have call predecessors, (528), 414 states have call successors, (528) [2021-11-07 01:07:31,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18298 states to 18298 states and 27931 transitions. [2021-11-07 01:07:31,814 INFO L78 Accepts]: Start accepts. Automaton has 18298 states and 27931 transitions. Word has length 252 [2021-11-07 01:07:31,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:07:31,815 INFO L470 AbstractCegarLoop]: Abstraction has 18298 states and 27931 transitions. [2021-11-07 01:07:31,815 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 63.75) internal successors, (255), 4 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:07:31,816 INFO L276 IsEmpty]: Start isEmpty. Operand 18298 states and 27931 transitions. [2021-11-07 01:07:31,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2021-11-07 01:07:31,822 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:07:31,822 INFO L513 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:07:31,864 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73d778b-ac0e-4de9-9856-f595d2cd3bab/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (9)] Forceful destruction successful, exit code 0 [2021-11-07 01:07:32,146 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73d778b-ac0e-4de9-9856-f595d2cd3bab/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Ended with exit code 0 [2021-11-07 01:07:32,241 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73d778b-ac0e-4de9-9856-f595d2cd3bab/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73d778b-ac0e-4de9-9856-f595d2cd3bab/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:07:32,242 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [handle_oem_get_msg_cmdErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~~ipmi_smi_t~0~X~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-07 01:07:32,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:07:32,242 INFO L85 PathProgramCache]: Analyzing trace with hash 41882045, now seen corresponding path program 1 times [2021-11-07 01:07:32,247 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:07:32,247 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [496285253] [2021-11-07 01:07:32,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:07:32,248 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:07:32,248 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73d778b-ac0e-4de9-9856-f595d2cd3bab/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:07:32,249 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73d778b-ac0e-4de9-9856-f595d2cd3bab/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:07:32,250 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73d778b-ac0e-4de9-9856-f595d2cd3bab/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-07 01:07:45,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:07:45,510 INFO L263 TraceCheckSpWp]: Trace formula consists of 3919 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-07 01:07:45,520 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:07:46,408 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-11-07 01:07:46,408 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:07:47,426 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-11-07 01:07:47,426 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:07:47,426 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [496285253] [2021-11-07 01:07:47,426 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [496285253] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 01:07:47,426 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [987673796] [2021-11-07 01:07:47,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:07:47,426 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-07 01:07:47,427 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73d778b-ac0e-4de9-9856-f595d2cd3bab/bin/utaipan-UUZaoUuFF8/cvc4 [2021-11-07 01:07:47,427 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73d778b-ac0e-4de9-9856-f595d2cd3bab/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-07 01:07:47,428 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73d778b-ac0e-4de9-9856-f595d2cd3bab/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2021-11-07 01:07:51,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:07:51,469 INFO L263 TraceCheckSpWp]: Trace formula consists of 3919 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 01:07:51,475 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:07:52,416 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-11-07 01:07:52,417 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:07:53,027 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-11-07 01:07:53,027 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [987673796] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:07:53,027 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2021-11-07 01:07:53,027 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [5, 5] total 10 [2021-11-07 01:07:53,028 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853657783] [2021-11-07 01:07:53,028 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:07:53,028 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:07:53,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:07:53,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-11-07 01:07:53,029 INFO L87 Difference]: Start difference. First operand 18298 states and 27931 transitions. Second operand has 4 states, 4 states have (on average 64.25) internal successors, (257), 4 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:07:58,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:07:58,321 INFO L93 Difference]: Finished difference Result 71239 states and 109803 transitions. [2021-11-07 01:07:58,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 01:07:58,322 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 64.25) internal successors, (257), 4 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 253 [2021-11-07 01:07:58,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:07:58,687 INFO L225 Difference]: With dead ends: 71239 [2021-11-07 01:07:58,687 INFO L226 Difference]: Without dead ends: 53156 [2021-11-07 01:07:58,753 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 1008 GetRequests, 1000 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-11-07 01:07:58,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53156 states. [2021-11-07 01:08:00,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53156 to 53082. [2021-11-07 01:08:00,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53082 states, 51407 states have (on average 1.525764973641722) internal successors, (78435), 51755 states have internal predecessors, (78435), 1224 states have call successors, (1224), 432 states have call predecessors, (1224), 432 states have return successors, (2124), 1188 states have call predecessors, (2124), 1224 states have call successors, (2124) [2021-11-07 01:08:00,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53082 states to 53082 states and 81783 transitions. [2021-11-07 01:08:00,969 INFO L78 Accepts]: Start accepts. Automaton has 53082 states and 81783 transitions. Word has length 253 [2021-11-07 01:08:00,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:08:00,970 INFO L470 AbstractCegarLoop]: Abstraction has 53082 states and 81783 transitions. [2021-11-07 01:08:00,970 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 64.25) internal successors, (257), 4 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:08:00,970 INFO L276 IsEmpty]: Start isEmpty. Operand 53082 states and 81783 transitions. [2021-11-07 01:08:00,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2021-11-07 01:08:00,977 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:08:00,977 INFO L513 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:08:01,121 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73d778b-ac0e-4de9-9856-f595d2cd3bab/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-07 01:08:01,234 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73d778b-ac0e-4de9-9856-f595d2cd3bab/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (11)] Forceful destruction successful, exit code 0 [2021-11-07 01:08:01,393 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73d778b-ac0e-4de9-9856-f595d2cd3bab/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73d778b-ac0e-4de9-9856-f595d2cd3bab/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt [2021-11-07 01:08:01,393 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [handle_oem_get_msg_cmdErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~~ipmi_smi_t~0~X~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-07 01:08:01,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:08:01,394 INFO L85 PathProgramCache]: Analyzing trace with hash 1676428514, now seen corresponding path program 1 times [2021-11-07 01:08:01,399 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:08:01,399 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2106004791] [2021-11-07 01:08:01,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:08:01,400 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:08:01,400 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73d778b-ac0e-4de9-9856-f595d2cd3bab/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:08:01,401 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73d778b-ac0e-4de9-9856-f595d2cd3bab/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:08:01,404 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73d778b-ac0e-4de9-9856-f595d2cd3bab/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-07 01:08:14,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:08:15,060 INFO L263 TraceCheckSpWp]: Trace formula consists of 3921 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-07 01:08:15,066 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:08:16,216 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-11-07 01:08:16,216 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:08:17,521 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-11-07 01:08:17,521 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:08:17,521 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2106004791] [2021-11-07 01:08:17,521 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2106004791] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 01:08:17,521 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [92199003] [2021-11-07 01:08:17,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:08:17,521 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-07 01:08:17,522 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73d778b-ac0e-4de9-9856-f595d2cd3bab/bin/utaipan-UUZaoUuFF8/cvc4 [2021-11-07 01:08:17,522 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73d778b-ac0e-4de9-9856-f595d2cd3bab/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-07 01:08:17,523 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73d778b-ac0e-4de9-9856-f595d2cd3bab/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2021-11-07 01:08:21,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:08:21,949 INFO L263 TraceCheckSpWp]: Trace formula consists of 3921 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 01:08:21,955 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:08:22,678 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-11-07 01:08:22,678 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:08:23,294 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-11-07 01:08:23,294 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [92199003] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:08:23,294 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2021-11-07 01:08:23,295 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [5, 5] total 10 [2021-11-07 01:08:23,295 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777353361] [2021-11-07 01:08:23,295 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:08:23,296 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:08:23,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:08:23,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-11-07 01:08:23,297 INFO L87 Difference]: Start difference. First operand 53082 states and 81783 transitions. Second operand has 4 states, 4 states have (on average 64.75) internal successors, (259), 4 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:08:31,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:08:31,542 INFO L93 Difference]: Finished difference Result 207947 states and 324377 transitions. [2021-11-07 01:08:31,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 01:08:31,543 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 64.75) internal successors, (259), 4 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 254 [2021-11-07 01:08:31,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:08:33,051 INFO L225 Difference]: With dead ends: 207947 [2021-11-07 01:08:33,051 INFO L226 Difference]: Without dead ends: 155080 [2021-11-07 01:08:33,576 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 1012 GetRequests, 1004 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-11-07 01:08:33,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155080 states. [2021-11-07 01:08:39,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155080 to 155006. [2021-11-07 01:08:40,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155006 states, 150073 states have (on average 1.5266237097945667) internal successors, (229105), 151063 states have internal predecessors, (229105), 3618 states have call successors, (3618), 1296 states have call predecessors, (3618), 1296 states have return successors, (9056), 3510 states have call predecessors, (9056), 3618 states have call successors, (9056) [2021-11-07 01:08:40,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155006 states to 155006 states and 241779 transitions. [2021-11-07 01:08:40,838 INFO L78 Accepts]: Start accepts. Automaton has 155006 states and 241779 transitions. Word has length 254 [2021-11-07 01:08:40,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:08:40,839 INFO L470 AbstractCegarLoop]: Abstraction has 155006 states and 241779 transitions. [2021-11-07 01:08:40,839 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 64.75) internal successors, (259), 4 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:08:40,840 INFO L276 IsEmpty]: Start isEmpty. Operand 155006 states and 241779 transitions. [2021-11-07 01:08:40,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2021-11-07 01:08:40,847 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:08:40,847 INFO L513 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:08:40,995 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73d778b-ac0e-4de9-9856-f595d2cd3bab/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-07 01:08:41,115 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73d778b-ac0e-4de9-9856-f595d2cd3bab/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (13)] Forceful destruction successful, exit code 0 [2021-11-07 01:08:41,273 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73d778b-ac0e-4de9-9856-f595d2cd3bab/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73d778b-ac0e-4de9-9856-f595d2cd3bab/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt [2021-11-07 01:08:41,273 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [handle_oem_get_msg_cmdErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~~ipmi_smi_t~0~X~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-07 01:08:41,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:08:41,273 INFO L85 PathProgramCache]: Analyzing trace with hash 807762244, now seen corresponding path program 1 times [2021-11-07 01:08:41,281 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:08:41,281 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [279830850] [2021-11-07 01:08:41,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:08:41,282 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:08:41,282 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73d778b-ac0e-4de9-9856-f595d2cd3bab/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:08:41,283 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73d778b-ac0e-4de9-9856-f595d2cd3bab/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:08:41,324 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73d778b-ac0e-4de9-9856-f595d2cd3bab/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-11-07 01:08:55,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:08:55,763 INFO L263 TraceCheckSpWp]: Trace formula consists of 3923 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-07 01:08:55,772 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:08:56,731 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-11-07 01:08:56,731 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:08:57,841 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-11-07 01:08:57,841 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:08:57,842 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [279830850] [2021-11-07 01:08:57,842 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [279830850] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 01:08:57,842 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [353611332] [2021-11-07 01:08:57,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:08:57,842 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-07 01:08:57,842 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73d778b-ac0e-4de9-9856-f595d2cd3bab/bin/utaipan-UUZaoUuFF8/cvc4 [2021-11-07 01:08:57,843 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73d778b-ac0e-4de9-9856-f595d2cd3bab/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-07 01:08:57,845 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73d778b-ac0e-4de9-9856-f595d2cd3bab/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (15)] Waiting until timeout for monitored process [2021-11-07 01:09:02,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:09:02,885 INFO L263 TraceCheckSpWp]: Trace formula consists of 3923 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 01:09:02,893 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:09:03,649 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-11-07 01:09:03,649 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:09:04,304 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-11-07 01:09:04,305 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [353611332] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:09:04,305 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2021-11-07 01:09:04,305 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [5, 5] total 10 [2021-11-07 01:09:04,305 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328354284] [2021-11-07 01:09:04,306 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:09:04,306 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:09:04,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:09:04,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-11-07 01:09:04,307 INFO L87 Difference]: Start difference. First operand 155006 states and 241779 transitions. Second operand has 4 states, 4 states have (on average 65.25) internal successors, (261), 4 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:09:21,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:09:21,317 INFO L93 Difference]: Finished difference Result 607025 states and 964297 transitions. [2021-11-07 01:09:21,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 01:09:21,318 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 65.25) internal successors, (261), 4 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 255 [2021-11-07 01:09:21,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:09:23,381 INFO L225 Difference]: With dead ends: 607025 [2021-11-07 01:09:23,381 INFO L226 Difference]: Without dead ends: 452234 [2021-11-07 01:09:24,182 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 1016 GetRequests, 1008 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-11-07 01:09:24,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 452234 states.