./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/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 87fc46113f1aa6bf5cd254bff58332904e2431653df647e3a9a61cd4104d8890 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 00:58:13,399 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 00:58:13,401 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 00:58:13,436 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 00:58:13,437 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 00:58:13,438 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 00:58:13,440 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 00:58:13,443 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 00:58:13,445 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 00:58:13,446 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 00:58:13,447 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 00:58:13,449 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 00:58:13,449 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 00:58:13,451 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 00:58:13,452 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 00:58:13,454 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 00:58:13,455 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 00:58:13,456 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 00:58:13,459 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 00:58:13,461 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 00:58:13,463 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 00:58:13,465 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 00:58:13,467 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 00:58:13,468 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 00:58:13,472 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 00:58:13,472 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 00:58:13,472 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 00:58:13,474 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 00:58:13,474 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 00:58:13,476 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 00:58:13,476 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 00:58:13,477 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 00:58:13,478 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 00:58:13,479 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 00:58:13,480 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 00:58:13,481 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 00:58:13,482 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 00:58:13,482 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 00:58:13,483 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 00:58:13,484 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 00:58:13,485 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 00:58:13,486 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-07 00:58:13,535 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 00:58:13,535 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 00:58:13,536 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 00:58:13,537 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 00:58:13,537 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 00:58:13,537 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 00:58:13,537 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 00:58:13,538 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 00:58:13,538 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 00:58:13,538 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 00:58:13,539 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 00:58:13,539 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 00:58:13,539 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 00:58:13,539 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 00:58:13,540 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 00:58:13,541 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 00:58:13,541 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 00:58:13,541 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 00:58:13,541 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 00:58:13,542 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 00:58:13,542 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 00:58:13,542 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 00:58:13,542 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 00:58:13,543 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 00:58:13,543 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 00:58:13,543 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 00:58:13,544 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 00:58:13,544 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 00:58:13,544 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 00:58:13,544 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 00:58:13,545 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 00:58:13,545 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 00:58:13,545 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 00:58:13,545 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 00:58:13,546 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 00:58:13,546 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 00:58:13,546 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 87fc46113f1aa6bf5cd254bff58332904e2431653df647e3a9a61cd4104d8890 [2021-11-07 00:58:13,873 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 00:58:13,901 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 00:58:13,904 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 00:58:13,906 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 00:58:13,907 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 00:58:13,908 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i [2021-11-07 00:58:13,983 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/data/d1825fbb7/b4bc543f0f5f4a8386a1b1ce2b5fb169/FLAGcfac5ff1b [2021-11-07 00:58:15,038 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 00:58:15,039 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i [2021-11-07 00:58:15,107 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/data/d1825fbb7/b4bc543f0f5f4a8386a1b1ce2b5fb169/FLAGcfac5ff1b [2021-11-07 00:58:15,379 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/data/d1825fbb7/b4bc543f0f5f4a8386a1b1ce2b5fb169 [2021-11-07 00:58:15,382 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 00:58:15,387 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 00:58:15,390 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 00:58:15,392 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 00:58:15,396 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 00:58:15,397 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:58:15" (1/1) ... [2021-11-07 00:58:15,400 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5318afc1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:58:15, skipping insertion in model container [2021-11-07 00:58:15,400 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:58:15" (1/1) ... [2021-11-07 00:58:15,410 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 00:58:15,577 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 00:58:16,949 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 00:58:16,970 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 00:58:17,110 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 00:58:17,120 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 00:58:17,124 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 00:58:17,144 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 00:58:17,152 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 00:58:17,161 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 00:58:17,180 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 00:58:17,200 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 00:58:17,239 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 00:58:17,247 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 00:58:17,262 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 00:58:17,282 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 00:58:17,288 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 00:58:17,299 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 00:58:17,309 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 00:58:17,325 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 00:58:17,332 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 00:58:17,348 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 00:58:17,370 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 00:58:17,377 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 00:58:17,387 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 00:58:17,396 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 00:58:17,408 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 00:58:17,434 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 00:58:17,456 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 00:58:17,486 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 00:58:17,491 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 00:58:17,684 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 00:58:17,685 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 00:58:17,686 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 00:58:17,733 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 00:58:17,737 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 00:58:17,742 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 00:58:17,743 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 00:58:17,744 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 00:58:17,965 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 00:58:17,969 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 00:58:18,432 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 00:58:18,433 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 00:58:18,855 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[287816,287829] [2021-11-07 00:58:18,857 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[287961,287974] [2021-11-07 00:58:18,858 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[288107,288120] [2021-11-07 00:58:18,859 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[288272,288285] [2021-11-07 00:58:18,859 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[288430,288443] [2021-11-07 00:58:18,860 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[288588,288601] [2021-11-07 00:58:18,860 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[288746,288759] [2021-11-07 00:58:18,861 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[288906,288919] [2021-11-07 00:58:18,861 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[289065,289078] [2021-11-07 00:58:18,862 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[289204,289217] [2021-11-07 00:58:18,862 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[289346,289359] [2021-11-07 00:58:18,863 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[289495,289508] [2021-11-07 00:58:18,863 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[289634,289647] [2021-11-07 00:58:18,863 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[289789,289802] [2021-11-07 00:58:18,864 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[289949,289962] [2021-11-07 00:58:18,864 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[290100,290113] [2021-11-07 00:58:18,865 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[290251,290264] [2021-11-07 00:58:18,865 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[290403,290416] [2021-11-07 00:58:18,866 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[290552,290565] [2021-11-07 00:58:18,866 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[290700,290713] [2021-11-07 00:58:18,867 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[290857,290870] [2021-11-07 00:58:18,867 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[291006,291019] [2021-11-07 00:58:18,868 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[291162,291175] [2021-11-07 00:58:18,868 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[291315,291328] [2021-11-07 00:58:18,869 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[291461,291474] [2021-11-07 00:58:18,869 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[291604,291617] [2021-11-07 00:58:18,870 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[291756,291769] [2021-11-07 00:58:18,870 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[291902,291915] [2021-11-07 00:58:18,871 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[292047,292060] [2021-11-07 00:58:18,871 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[292201,292214] [2021-11-07 00:58:18,872 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[292352,292365] [2021-11-07 00:58:18,872 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[292507,292520] [2021-11-07 00:58:18,872 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[292659,292672] [2021-11-07 00:58:18,873 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[292814,292827] [2021-11-07 00:58:18,873 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[292978,292991] [2021-11-07 00:58:18,874 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[293134,293147] [2021-11-07 00:58:18,874 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[293298,293311] [2021-11-07 00:58:18,875 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[293440,293453] [2021-11-07 00:58:18,875 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[293598,293611] [2021-11-07 00:58:18,876 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[293765,293778] [2021-11-07 00:58:18,876 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[293924,293937] [2021-11-07 00:58:18,877 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[294083,294096] [2021-11-07 00:58:18,877 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[294232,294245] [2021-11-07 00:58:18,878 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[294379,294392] [2021-11-07 00:58:18,878 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[294518,294531] [2021-11-07 00:58:18,879 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[294681,294694] [2021-11-07 00:58:18,879 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[294847,294860] [2021-11-07 00:58:18,880 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[295011,295024] [2021-11-07 00:58:18,880 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[295176,295189] [2021-11-07 00:58:18,881 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[295341,295354] [2021-11-07 00:58:18,881 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[295507,295520] [2021-11-07 00:58:18,882 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[295672,295685] [2021-11-07 00:58:18,882 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[295839,295852] [2021-11-07 00:58:18,882 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[295999,296012] [2021-11-07 00:58:18,883 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[296161,296174] [2021-11-07 00:58:18,883 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[296320,296333] [2021-11-07 00:58:18,884 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[296466,296479] [2021-11-07 00:58:18,884 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[296609,296622] [2021-11-07 00:58:18,885 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[296753,296766] [2021-11-07 00:58:18,885 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[296896,296909] [2021-11-07 00:58:18,885 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[297040,297053] [2021-11-07 00:58:18,886 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[297181,297194] [2021-11-07 00:58:18,886 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[297319,297332] [2021-11-07 00:58:18,887 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[297477,297490] [2021-11-07 00:58:18,887 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[297636,297649] [2021-11-07 00:58:18,888 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[297792,297805] [2021-11-07 00:58:18,888 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[297941,297954] [2021-11-07 00:58:18,888 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[298093,298106] [2021-11-07 00:58:18,889 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[298244,298257] [2021-11-07 00:58:18,889 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[298393,298406] [2021-11-07 00:58:18,890 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[298545,298558] [2021-11-07 00:58:18,890 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[298693,298706] [2021-11-07 00:58:18,891 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[298846,298859] [2021-11-07 00:58:18,891 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[298997,299010] [2021-11-07 00:58:18,892 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[299147,299160] [2021-11-07 00:58:18,892 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[299294,299307] [2021-11-07 00:58:18,892 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[299445,299458] [2021-11-07 00:58:18,893 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[299596,299609] [2021-11-07 00:58:18,893 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[299744,299757] [2021-11-07 00:58:18,894 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[299910,299923] [2021-11-07 00:58:18,894 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[300079,300092] [2021-11-07 00:58:18,895 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[300246,300259] [2021-11-07 00:58:18,895 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[300414,300427] [2021-11-07 00:58:18,896 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[300564,300577] [2021-11-07 00:58:18,896 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[300711,300724] [2021-11-07 00:58:18,896 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[300872,300885] [2021-11-07 00:58:18,897 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[301042,301055] [2021-11-07 00:58:18,897 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[301204,301217] [2021-11-07 00:58:18,900 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 00:58:18,927 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 00:58:18,928 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@39d30543 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:58:18, skipping insertion in model container [2021-11-07 00:58:18,928 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 00:58:18,928 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-07 00:58:18,931 INFO L168 Benchmark]: Toolchain (without parser) took 3542.79 ms. Allocated memory was 90.2 MB in the beginning and 125.8 MB in the end (delta: 35.7 MB). Free memory was 58.1 MB in the beginning and 68.1 MB in the end (delta: -10.0 MB). Peak memory consumption was 39.6 MB. Max. memory is 16.1 GB. [2021-11-07 00:58:18,931 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 90.2 MB. Free memory is still 65.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 00:58:18,933 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3537.93 ms. Allocated memory was 90.2 MB in the beginning and 125.8 MB in the end (delta: 35.7 MB). Free memory was 58.1 MB in the beginning and 68.1 MB in the end (delta: -10.0 MB). Peak memory consumption was 39.6 MB. Max. memory is 16.1 GB. [2021-11-07 00:58:18,934 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 90.2 MB. Free memory is still 65.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 3537.93 ms. Allocated memory was 90.2 MB in the beginning and 125.8 MB in the end (delta: 35.7 MB). Free memory was 58.1 MB in the beginning and 68.1 MB in the end (delta: -10.0 MB). Peak memory consumption was 39.6 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 4433]: 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/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 87fc46113f1aa6bf5cd254bff58332904e2431653df647e3a9a61cd4104d8890 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 00:58:21,688 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 00:58:21,693 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 00:58:21,732 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 00:58:21,733 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 00:58:21,735 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 00:58:21,737 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 00:58:21,741 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 00:58:21,744 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 00:58:21,746 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 00:58:21,747 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 00:58:21,749 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 00:58:21,750 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 00:58:21,751 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 00:58:21,753 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 00:58:21,755 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 00:58:21,756 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 00:58:21,758 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 00:58:21,761 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 00:58:21,764 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 00:58:21,766 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 00:58:21,768 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 00:58:21,775 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 00:58:21,777 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 00:58:21,781 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 00:58:21,785 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 00:58:21,786 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 00:58:21,790 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 00:58:21,792 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 00:58:21,793 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 00:58:21,793 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 00:58:21,795 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 00:58:21,796 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 00:58:21,798 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 00:58:21,800 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 00:58:21,801 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 00:58:21,825 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 00:58:21,826 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 00:58:21,826 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 00:58:21,829 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 00:58:21,830 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 00:58:21,836 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-07 00:58:21,878 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 00:58:21,879 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 00:58:21,880 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 00:58:21,880 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 00:58:21,880 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 00:58:21,880 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 00:58:21,881 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 00:58:21,881 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 00:58:21,881 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 00:58:21,882 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 00:58:21,882 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 00:58:21,883 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 00:58:21,883 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 00:58:21,883 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 00:58:21,883 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 00:58:21,884 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-07 00:58:21,884 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-07 00:58:21,884 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 00:58:21,884 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 00:58:21,885 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 00:58:21,885 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 00:58:21,885 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 00:58:21,886 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 00:58:21,886 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 00:58:21,886 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 00:58:21,886 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 00:58:21,887 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 00:58:21,887 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-07 00:58:21,887 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-07 00:58:21,887 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 00:58:21,888 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 00:58:21,888 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 00:58:21,888 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 87fc46113f1aa6bf5cd254bff58332904e2431653df647e3a9a61cd4104d8890 [2021-11-07 00:58:22,287 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 00:58:22,316 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 00:58:22,321 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 00:58:22,322 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 00:58:22,323 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 00:58:22,324 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i [2021-11-07 00:58:22,400 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/data/32e50fa63/7de9162da86649eeba19bc833aad54b8/FLAG2d94ff608 [2021-11-07 00:58:23,606 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 00:58:23,607 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i [2021-11-07 00:58:23,681 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/data/32e50fa63/7de9162da86649eeba19bc833aad54b8/FLAG2d94ff608 [2021-11-07 00:58:23,990 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/data/32e50fa63/7de9162da86649eeba19bc833aad54b8 [2021-11-07 00:58:23,993 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 00:58:23,996 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 00:58:23,999 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 00:58:23,999 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 00:58:24,003 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 00:58:24,004 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:58:23" (1/1) ... [2021-11-07 00:58:24,006 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65d2f982 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:58:24, skipping insertion in model container [2021-11-07 00:58:24,006 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:58:23" (1/1) ... [2021-11-07 00:58:24,015 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 00:58:24,249 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 00:58:28,170 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[287816,287829] [2021-11-07 00:58:28,176 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[287961,287974] [2021-11-07 00:58:28,177 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[288107,288120] [2021-11-07 00:58:28,177 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[288272,288285] [2021-11-07 00:58:28,178 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[288430,288443] [2021-11-07 00:58:28,178 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[288588,288601] [2021-11-07 00:58:28,179 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[288746,288759] [2021-11-07 00:58:28,179 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[288906,288919] [2021-11-07 00:58:28,180 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[289065,289078] [2021-11-07 00:58:28,180 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[289204,289217] [2021-11-07 00:58:28,181 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[289346,289359] [2021-11-07 00:58:28,181 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[289495,289508] [2021-11-07 00:58:28,182 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[289634,289647] [2021-11-07 00:58:28,182 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[289789,289802] [2021-11-07 00:58:28,183 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[289949,289962] [2021-11-07 00:58:28,184 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[290100,290113] [2021-11-07 00:58:28,185 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[290251,290264] [2021-11-07 00:58:28,186 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[290403,290416] [2021-11-07 00:58:28,186 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[290552,290565] [2021-11-07 00:58:28,187 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[290700,290713] [2021-11-07 00:58:28,188 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[290857,290870] [2021-11-07 00:58:28,188 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[291006,291019] [2021-11-07 00:58:28,189 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[291162,291175] [2021-11-07 00:58:28,190 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[291315,291328] [2021-11-07 00:58:28,191 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[291461,291474] [2021-11-07 00:58:28,192 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[291604,291617] [2021-11-07 00:58:28,192 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[291756,291769] [2021-11-07 00:58:28,193 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[291902,291915] [2021-11-07 00:58:28,194 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[292047,292060] [2021-11-07 00:58:28,195 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[292201,292214] [2021-11-07 00:58:28,196 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[292352,292365] [2021-11-07 00:58:28,196 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[292507,292520] [2021-11-07 00:58:28,197 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[292659,292672] [2021-11-07 00:58:28,198 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[292814,292827] [2021-11-07 00:58:28,199 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[292978,292991] [2021-11-07 00:58:28,199 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[293134,293147] [2021-11-07 00:58:28,200 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[293298,293311] [2021-11-07 00:58:28,201 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[293440,293453] [2021-11-07 00:58:28,202 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[293598,293611] [2021-11-07 00:58:28,202 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[293765,293778] [2021-11-07 00:58:28,203 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[293924,293937] [2021-11-07 00:58:28,204 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[294083,294096] [2021-11-07 00:58:28,205 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[294232,294245] [2021-11-07 00:58:28,205 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[294379,294392] [2021-11-07 00:58:28,206 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[294518,294531] [2021-11-07 00:58:28,207 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[294681,294694] [2021-11-07 00:58:28,207 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[294847,294860] [2021-11-07 00:58:28,208 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[295011,295024] [2021-11-07 00:58:28,209 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[295176,295189] [2021-11-07 00:58:28,210 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[295341,295354] [2021-11-07 00:58:28,210 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[295507,295520] [2021-11-07 00:58:28,211 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[295672,295685] [2021-11-07 00:58:28,212 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[295839,295852] [2021-11-07 00:58:28,212 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[295999,296012] [2021-11-07 00:58:28,213 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[296161,296174] [2021-11-07 00:58:28,214 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[296320,296333] [2021-11-07 00:58:28,214 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[296466,296479] [2021-11-07 00:58:28,215 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[296609,296622] [2021-11-07 00:58:28,216 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[296753,296766] [2021-11-07 00:58:28,217 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[296896,296909] [2021-11-07 00:58:28,217 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[297040,297053] [2021-11-07 00:58:28,218 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[297181,297194] [2021-11-07 00:58:28,219 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[297319,297332] [2021-11-07 00:58:28,220 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[297477,297490] [2021-11-07 00:58:28,220 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[297636,297649] [2021-11-07 00:58:28,221 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[297792,297805] [2021-11-07 00:58:28,222 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[297941,297954] [2021-11-07 00:58:28,222 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[298093,298106] [2021-11-07 00:58:28,223 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[298244,298257] [2021-11-07 00:58:28,224 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[298393,298406] [2021-11-07 00:58:28,225 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[298545,298558] [2021-11-07 00:58:28,226 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[298693,298706] [2021-11-07 00:58:28,227 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[298846,298859] [2021-11-07 00:58:28,228 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[298997,299010] [2021-11-07 00:58:28,229 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[299147,299160] [2021-11-07 00:58:28,229 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[299294,299307] [2021-11-07 00:58:28,230 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[299445,299458] [2021-11-07 00:58:28,232 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[299596,299609] [2021-11-07 00:58:28,234 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[299744,299757] [2021-11-07 00:58:28,235 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[299910,299923] [2021-11-07 00:58:28,236 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[300079,300092] [2021-11-07 00:58:28,237 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[300246,300259] [2021-11-07 00:58:28,240 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[300414,300427] [2021-11-07 00:58:28,241 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[300564,300577] [2021-11-07 00:58:28,243 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[300711,300724] [2021-11-07 00:58:28,243 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[300872,300885] [2021-11-07 00:58:28,245 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[301042,301055] [2021-11-07 00:58:28,246 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[301204,301217] [2021-11-07 00:58:28,253 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 00:58:28,292 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-07 00:58:28,446 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 00:58:28,816 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[287816,287829] [2021-11-07 00:58:28,817 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[287961,287974] [2021-11-07 00:58:28,817 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[288107,288120] [2021-11-07 00:58:28,818 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[288272,288285] [2021-11-07 00:58:28,818 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[288430,288443] [2021-11-07 00:58:28,818 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[288588,288601] [2021-11-07 00:58:28,819 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[288746,288759] [2021-11-07 00:58:28,819 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[288906,288919] [2021-11-07 00:58:28,820 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[289065,289078] [2021-11-07 00:58:28,820 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[289204,289217] [2021-11-07 00:58:28,820 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[289346,289359] [2021-11-07 00:58:28,821 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[289495,289508] [2021-11-07 00:58:28,821 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[289634,289647] [2021-11-07 00:58:28,821 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[289789,289802] [2021-11-07 00:58:28,822 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[289949,289962] [2021-11-07 00:58:28,822 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[290100,290113] [2021-11-07 00:58:28,822 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[290251,290264] [2021-11-07 00:58:28,823 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[290403,290416] [2021-11-07 00:58:28,823 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[290552,290565] [2021-11-07 00:58:28,823 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[290700,290713] [2021-11-07 00:58:28,824 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[290857,290870] [2021-11-07 00:58:28,828 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[291006,291019] [2021-11-07 00:58:28,829 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[291162,291175] [2021-11-07 00:58:28,829 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[291315,291328] [2021-11-07 00:58:28,830 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[291461,291474] [2021-11-07 00:58:28,830 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[291604,291617] [2021-11-07 00:58:28,830 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[291756,291769] [2021-11-07 00:58:28,831 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[291902,291915] [2021-11-07 00:58:28,832 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[292047,292060] [2021-11-07 00:58:28,832 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[292201,292214] [2021-11-07 00:58:28,832 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[292352,292365] [2021-11-07 00:58:28,833 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[292507,292520] [2021-11-07 00:58:28,834 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[292659,292672] [2021-11-07 00:58:28,834 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[292814,292827] [2021-11-07 00:58:28,835 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[292978,292991] [2021-11-07 00:58:28,835 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[293134,293147] [2021-11-07 00:58:28,836 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[293298,293311] [2021-11-07 00:58:28,836 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[293440,293453] [2021-11-07 00:58:28,837 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[293598,293611] [2021-11-07 00:58:28,838 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[293765,293778] [2021-11-07 00:58:28,839 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[293924,293937] [2021-11-07 00:58:28,840 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[294083,294096] [2021-11-07 00:58:28,840 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[294232,294245] [2021-11-07 00:58:28,841 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[294379,294392] [2021-11-07 00:58:28,841 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[294518,294531] [2021-11-07 00:58:28,842 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[294681,294694] [2021-11-07 00:58:28,843 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[294847,294860] [2021-11-07 00:58:28,844 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[295011,295024] [2021-11-07 00:58:28,844 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[295176,295189] [2021-11-07 00:58:28,844 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[295341,295354] [2021-11-07 00:58:28,845 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[295507,295520] [2021-11-07 00:58:28,845 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[295672,295685] [2021-11-07 00:58:28,846 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[295839,295852] [2021-11-07 00:58:28,847 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[295999,296012] [2021-11-07 00:58:28,847 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[296161,296174] [2021-11-07 00:58:28,847 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[296320,296333] [2021-11-07 00:58:28,848 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[296466,296479] [2021-11-07 00:58:28,853 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[296609,296622] [2021-11-07 00:58:28,853 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[296753,296766] [2021-11-07 00:58:28,855 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[296896,296909] [2021-11-07 00:58:28,858 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[297040,297053] [2021-11-07 00:58:28,861 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[297181,297194] [2021-11-07 00:58:28,862 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[297319,297332] [2021-11-07 00:58:28,862 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[297477,297490] [2021-11-07 00:58:28,862 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[297636,297649] [2021-11-07 00:58:28,863 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[297792,297805] [2021-11-07 00:58:28,864 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[297941,297954] [2021-11-07 00:58:28,865 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[298093,298106] [2021-11-07 00:58:28,865 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[298244,298257] [2021-11-07 00:58:28,866 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[298393,298406] [2021-11-07 00:58:28,866 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[298545,298558] [2021-11-07 00:58:28,867 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[298693,298706] [2021-11-07 00:58:28,867 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[298846,298859] [2021-11-07 00:58:28,867 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[298997,299010] [2021-11-07 00:58:28,868 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[299147,299160] [2021-11-07 00:58:28,868 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[299294,299307] [2021-11-07 00:58:28,868 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[299445,299458] [2021-11-07 00:58:28,869 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[299596,299609] [2021-11-07 00:58:28,869 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[299744,299757] [2021-11-07 00:58:28,870 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[299910,299923] [2021-11-07 00:58:28,870 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[300079,300092] [2021-11-07 00:58:28,870 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[300246,300259] [2021-11-07 00:58:28,871 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[300414,300427] [2021-11-07 00:58:28,871 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[300564,300577] [2021-11-07 00:58:28,871 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[300711,300724] [2021-11-07 00:58:28,872 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[300872,300885] [2021-11-07 00:58:28,872 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[301042,301055] [2021-11-07 00:58:28,872 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[301204,301217] [2021-11-07 00:58:28,875 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 00:58:28,890 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 00:58:29,201 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[287816,287829] [2021-11-07 00:58:29,202 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[287961,287974] [2021-11-07 00:58:29,203 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[288107,288120] [2021-11-07 00:58:29,204 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[288272,288285] [2021-11-07 00:58:29,207 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[288430,288443] [2021-11-07 00:58:29,208 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[288588,288601] [2021-11-07 00:58:29,208 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[288746,288759] [2021-11-07 00:58:29,210 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[288906,288919] [2021-11-07 00:58:29,210 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[289065,289078] [2021-11-07 00:58:29,211 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[289204,289217] [2021-11-07 00:58:29,211 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[289346,289359] [2021-11-07 00:58:29,212 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[289495,289508] [2021-11-07 00:58:29,213 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[289634,289647] [2021-11-07 00:58:29,213 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[289789,289802] [2021-11-07 00:58:29,214 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[289949,289962] [2021-11-07 00:58:29,214 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[290100,290113] [2021-11-07 00:58:29,215 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[290251,290264] [2021-11-07 00:58:29,215 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[290403,290416] [2021-11-07 00:58:29,216 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[290552,290565] [2021-11-07 00:58:29,216 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[290700,290713] [2021-11-07 00:58:29,217 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[290857,290870] [2021-11-07 00:58:29,218 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[291006,291019] [2021-11-07 00:58:29,219 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[291162,291175] [2021-11-07 00:58:29,220 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[291315,291328] [2021-11-07 00:58:29,220 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[291461,291474] [2021-11-07 00:58:29,221 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[291604,291617] [2021-11-07 00:58:29,223 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[291756,291769] [2021-11-07 00:58:29,224 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[291902,291915] [2021-11-07 00:58:29,225 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[292047,292060] [2021-11-07 00:58:29,227 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[292201,292214] [2021-11-07 00:58:29,228 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[292352,292365] [2021-11-07 00:58:29,228 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[292507,292520] [2021-11-07 00:58:29,230 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[292659,292672] [2021-11-07 00:58:29,231 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[292814,292827] [2021-11-07 00:58:29,231 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[292978,292991] [2021-11-07 00:58:29,232 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[293134,293147] [2021-11-07 00:58:29,260 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[293298,293311] [2021-11-07 00:58:29,260 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[293440,293453] [2021-11-07 00:58:29,261 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[293598,293611] [2021-11-07 00:58:29,261 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[293765,293778] [2021-11-07 00:58:29,261 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[293924,293937] [2021-11-07 00:58:29,262 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[294083,294096] [2021-11-07 00:58:29,262 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[294232,294245] [2021-11-07 00:58:29,262 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[294379,294392] [2021-11-07 00:58:29,263 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[294518,294531] [2021-11-07 00:58:29,263 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[294681,294694] [2021-11-07 00:58:29,264 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[294847,294860] [2021-11-07 00:58:29,264 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[295011,295024] [2021-11-07 00:58:29,264 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[295176,295189] [2021-11-07 00:58:29,265 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[295341,295354] [2021-11-07 00:58:29,265 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[295507,295520] [2021-11-07 00:58:29,265 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[295672,295685] [2021-11-07 00:58:29,266 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[295839,295852] [2021-11-07 00:58:29,266 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[295999,296012] [2021-11-07 00:58:29,267 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[296161,296174] [2021-11-07 00:58:29,267 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[296320,296333] [2021-11-07 00:58:29,267 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[296466,296479] [2021-11-07 00:58:29,268 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[296609,296622] [2021-11-07 00:58:29,268 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[296753,296766] [2021-11-07 00:58:29,268 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[296896,296909] [2021-11-07 00:58:29,269 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[297040,297053] [2021-11-07 00:58:29,269 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[297181,297194] [2021-11-07 00:58:29,270 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[297319,297332] [2021-11-07 00:58:29,270 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[297477,297490] [2021-11-07 00:58:29,270 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[297636,297649] [2021-11-07 00:58:29,271 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[297792,297805] [2021-11-07 00:58:29,271 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[297941,297954] [2021-11-07 00:58:29,271 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[298093,298106] [2021-11-07 00:58:29,272 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[298244,298257] [2021-11-07 00:58:29,276 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[298393,298406] [2021-11-07 00:58:29,277 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[298545,298558] [2021-11-07 00:58:29,278 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[298693,298706] [2021-11-07 00:58:29,278 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[298846,298859] [2021-11-07 00:58:29,279 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[298997,299010] [2021-11-07 00:58:29,279 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[299147,299160] [2021-11-07 00:58:29,280 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[299294,299307] [2021-11-07 00:58:29,281 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[299445,299458] [2021-11-07 00:58:29,281 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[299596,299609] [2021-11-07 00:58:29,281 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[299744,299757] [2021-11-07 00:58:29,283 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[299910,299923] [2021-11-07 00:58:29,289 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[300079,300092] [2021-11-07 00:58:29,290 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[300246,300259] [2021-11-07 00:58:29,290 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[300414,300427] [2021-11-07 00:58:29,291 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[300564,300577] [2021-11-07 00:58:29,291 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[300711,300724] [2021-11-07 00:58:29,291 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[300872,300885] [2021-11-07 00:58:29,292 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[301042,301055] [2021-11-07 00:58:29,292 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_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[301204,301217] [2021-11-07 00:58:29,296 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 00:58:29,536 INFO L208 MainTranslator]: Completed translation [2021-11-07 00:58:29,537 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:58:29 WrapperNode [2021-11-07 00:58:29,537 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 00:58:29,538 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 00:58:29,538 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 00:58:29,538 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 00:58:29,546 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:58:29" (1/1) ... [2021-11-07 00:58:29,644 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:58:29" (1/1) ... [2021-11-07 00:58:29,942 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 00:58:29,948 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 00:58:29,948 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 00:58:29,948 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 00:58:29,958 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:58:29" (1/1) ... [2021-11-07 00:58:29,958 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:58:29" (1/1) ... [2021-11-07 00:58:30,012 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:58:29" (1/1) ... [2021-11-07 00:58:30,012 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:58:29" (1/1) ... [2021-11-07 00:58:30,248 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:58:29" (1/1) ... [2021-11-07 00:58:30,284 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:58:29" (1/1) ... [2021-11-07 00:58:30,316 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:58:29" (1/1) ... [2021-11-07 00:58:30,362 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 00:58:30,365 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 00:58:30,365 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 00:58:30,365 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 00:58:30,366 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:58:29" (1/1) ... [2021-11-07 00:58:30,375 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 00:58:30,389 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 00:58:30,403 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 00:58:30,423 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 00:58:30,473 INFO L130 BoogieDeclarations]: Found specification of procedure parport_uss720_disable_irq [2021-11-07 00:58:30,473 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_uss720_disable_irq [2021-11-07 00:58:30,473 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_async [2021-11-07 00:58:30,473 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_async [2021-11-07 00:58:30,473 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 00:58:30,474 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2021-11-07 00:58:30,474 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-07 00:58:30,474 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-07 00:58:30,474 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-07 00:58:30,474 INFO L130 BoogieDeclarations]: Found specification of procedure parport_uss720_data_reverse [2021-11-07 00:58:30,475 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_uss720_data_reverse [2021-11-07 00:58:30,475 INFO L130 BoogieDeclarations]: Found specification of procedure submit_async_request [2021-11-07 00:58:30,475 INFO L138 BoogieDeclarations]: Found implementation of procedure submit_async_request [2021-11-07 00:58:30,475 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2021-11-07 00:58:30,475 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2021-11-07 00:58:30,475 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 00:58:30,476 INFO L130 BoogieDeclarations]: Found specification of procedure change_mode [2021-11-07 00:58:30,476 INFO L138 BoogieDeclarations]: Found implementation of procedure change_mode [2021-11-07 00:58:30,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 00:58:30,476 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-07 00:58:30,476 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-07 00:58:30,477 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-07 00:58:30,477 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-07 00:58:30,477 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-07 00:58:30,477 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-07 00:58:30,477 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-07 00:58:30,478 INFO L130 BoogieDeclarations]: Found specification of procedure parport_generic_irq [2021-11-07 00:58:30,478 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_generic_irq [2021-11-07 00:58:30,478 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 00:58:30,478 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 00:58:30,478 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-07 00:58:30,479 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2021-11-07 00:58:30,479 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2021-11-07 00:58:30,479 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-07 00:58:30,479 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-07 00:58:30,479 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-07 00:58:30,480 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-07 00:58:30,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-07 00:58:30,480 INFO L130 BoogieDeclarations]: Found specification of procedure set_1284_register [2021-11-07 00:58:30,480 INFO L138 BoogieDeclarations]: Found implementation of procedure set_1284_register [2021-11-07 00:58:30,480 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 00:58:30,480 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 00:58:30,481 INFO L130 BoogieDeclarations]: Found specification of procedure async_complete [2021-11-07 00:58:30,481 INFO L138 BoogieDeclarations]: Found implementation of procedure async_complete [2021-11-07 00:58:30,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-07 00:58:30,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-07 00:58:30,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-07 00:58:30,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 00:58:30,482 INFO L130 BoogieDeclarations]: Found specification of procedure parport_uss720_enable_irq [2021-11-07 00:58:30,482 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_uss720_enable_irq [2021-11-07 00:58:30,482 INFO L130 BoogieDeclarations]: Found specification of procedure uss720_disconnect [2021-11-07 00:58:30,482 INFO L138 BoogieDeclarations]: Found implementation of procedure uss720_disconnect [2021-11-07 00:58:30,482 INFO L130 BoogieDeclarations]: Found specification of procedure parport_uss720_data_forward [2021-11-07 00:58:30,483 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_uss720_data_forward [2021-11-07 00:58:30,483 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-07 00:58:30,483 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-07 00:58:30,483 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-07 00:58:30,483 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-07 00:59:17,939 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_entry_EMGentry_5_returnLabel: main_#res := 0bv32; [2021-11-07 00:59:17,940 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L6476: #t~ret609 := main_#res; [2021-11-07 00:59:17,940 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-07 00:59:20,120 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 00:59:20,121 INFO L299 CfgBuilder]: Removed 1375 assume(true) statements. [2021-11-07 00:59:20,126 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:59:20 BoogieIcfgContainer [2021-11-07 00:59:20,127 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 00:59:20,129 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 00:59:20,129 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 00:59:20,132 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 00:59:20,132 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:58:23" (1/3) ... [2021-11-07 00:59:20,133 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@105b65b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:59:20, skipping insertion in model container [2021-11-07 00:59:20,133 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:58:29" (2/3) ... [2021-11-07 00:59:20,134 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@105b65b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:59:20, skipping insertion in model container [2021-11-07 00:59:20,134 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:59:20" (3/3) ... [2021-11-07 00:59:20,136 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i [2021-11-07 00:59:20,142 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 00:59:20,142 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 110 error locations. [2021-11-07 00:59:20,202 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 00:59:20,208 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 00:59:20,209 INFO L340 AbstractCegarLoop]: Starting to check reachability of 110 error locations. [2021-11-07 00:59:20,264 INFO L276 IsEmpty]: Start isEmpty. Operand has 1554 states, 1334 states have (on average 1.4130434782608696) internal successors, (1885), 1455 states have internal predecessors, (1885), 96 states have call successors, (96), 14 states have call predecessors, (96), 14 states have return successors, (96), 87 states have call predecessors, (96), 96 states have call successors, (96) [2021-11-07 00:59:20,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-07 00:59:20,270 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 00:59:20,271 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] [2021-11-07 00:59:20,271 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [change_modeErr0ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr1ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr2ASSERT_VIOLATIONERROR_FUNCTION (and 107 more)] === [2021-11-07 00:59:20,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 00:59:20,278 INFO L85 PathProgramCache]: Analyzing trace with hash 384955339, now seen corresponding path program 1 times [2021-11-07 00:59:20,297 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 00:59:20,297 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1310415798] [2021-11-07 00:59:20,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 00:59:20,299 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 00:59:20,299 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 00:59:20,303 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 00:59:20,314 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-07 00:59:21,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 00:59:21,710 INFO L263 TraceCheckSpWp]: Trace formula consists of 807 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 00:59:21,718 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 00:59:22,137 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 00:59:22,137 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 00:59:22,397 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 00:59:22,398 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 00:59:22,399 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1310415798] [2021-11-07 00:59:22,399 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1310415798] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 00:59:22,399 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 00:59:22,399 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 00:59:22,401 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193833385] [2021-11-07 00:59:22,407 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 00:59:22,407 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 00:59:22,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 00:59:22,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 00:59:22,432 INFO L87 Difference]: Start difference. First operand has 1554 states, 1334 states have (on average 1.4130434782608696) internal successors, (1885), 1455 states have internal predecessors, (1885), 96 states have call successors, (96), 14 states have call predecessors, (96), 14 states have return successors, (96), 87 states have call predecessors, (96), 96 states have call successors, (96) Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 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 00:59:22,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 00:59:22,827 INFO L93 Difference]: Finished difference Result 3015 states and 4131 transitions. [2021-11-07 00:59:22,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 00:59:22,830 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 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 31 [2021-11-07 00:59:22,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 00:59:22,867 INFO L225 Difference]: With dead ends: 3015 [2021-11-07 00:59:22,868 INFO L226 Difference]: Without dead ends: 1479 [2021-11-07 00:59:22,898 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-07 00:59:22,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1479 states. [2021-11-07 00:59:23,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1479 to 1479. [2021-11-07 00:59:23,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1479 states, 1261 states have (on average 1.2894528152260112) internal successors, (1626), 1380 states have internal predecessors, (1626), 96 states have call successors, (96), 14 states have call predecessors, (96), 14 states have return successors, (96), 87 states have call predecessors, (96), 96 states have call successors, (96) [2021-11-07 00:59:23,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1479 states to 1479 states and 1818 transitions. [2021-11-07 00:59:23,140 INFO L78 Accepts]: Start accepts. Automaton has 1479 states and 1818 transitions. Word has length 31 [2021-11-07 00:59:23,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 00:59:23,141 INFO L470 AbstractCegarLoop]: Abstraction has 1479 states and 1818 transitions. [2021-11-07 00:59:23,142 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 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 00:59:23,142 INFO L276 IsEmpty]: Start isEmpty. Operand 1479 states and 1818 transitions. [2021-11-07 00:59:23,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-07 00:59:23,144 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 00:59:23,145 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] [2021-11-07 00:59:23,182 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-07 00:59:23,376 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 00:59:23,376 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [change_modeErr0ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr1ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr2ASSERT_VIOLATIONERROR_FUNCTION (and 107 more)] === [2021-11-07 00:59:23,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 00:59:23,378 INFO L85 PathProgramCache]: Analyzing trace with hash 575086735, now seen corresponding path program 1 times [2021-11-07 00:59:23,380 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 00:59:23,380 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1242290004] [2021-11-07 00:59:23,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 00:59:23,381 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 00:59:23,381 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 00:59:23,384 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 00:59:23,408 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-07 00:59:24,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 00:59:25,023 INFO L263 TraceCheckSpWp]: Trace formula consists of 810 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 00:59:25,027 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 00:59:25,313 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 00:59:25,314 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 00:59:25,589 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 00:59:25,589 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 00:59:25,590 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1242290004] [2021-11-07 00:59:25,590 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1242290004] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 00:59:25,590 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 00:59:25,590 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 00:59:25,590 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032660860] [2021-11-07 00:59:25,592 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 00:59:25,592 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 00:59:25,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 00:59:25,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 00:59:25,593 INFO L87 Difference]: Start difference. First operand 1479 states and 1818 transitions. Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 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 00:59:25,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 00:59:25,790 INFO L93 Difference]: Finished difference Result 1479 states and 1818 transitions. [2021-11-07 00:59:25,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 00:59:25,790 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 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 33 [2021-11-07 00:59:25,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 00:59:25,809 INFO L225 Difference]: With dead ends: 1479 [2021-11-07 00:59:25,810 INFO L226 Difference]: Without dead ends: 1475 [2021-11-07 00:59:25,815 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-07 00:59:25,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1475 states. [2021-11-07 00:59:25,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1475 to 1475. [2021-11-07 00:59:25,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1475 states, 1259 states have (on average 1.2883240667196187) internal successors, (1622), 1376 states have internal predecessors, (1622), 96 states have call successors, (96), 14 states have call predecessors, (96), 14 states have return successors, (96), 87 states have call predecessors, (96), 96 states have call successors, (96) [2021-11-07 00:59:25,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1475 states to 1475 states and 1814 transitions. [2021-11-07 00:59:25,940 INFO L78 Accepts]: Start accepts. Automaton has 1475 states and 1814 transitions. Word has length 33 [2021-11-07 00:59:25,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 00:59:25,941 INFO L470 AbstractCegarLoop]: Abstraction has 1475 states and 1814 transitions. [2021-11-07 00:59:25,941 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 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 00:59:25,941 INFO L276 IsEmpty]: Start isEmpty. Operand 1475 states and 1814 transitions. [2021-11-07 00:59:25,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-07 00:59:25,943 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 00:59:25,943 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] [2021-11-07 00:59:25,979 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-07 00:59:26,156 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 00:59:26,157 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [change_modeErr0ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr1ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr2ASSERT_VIOLATIONERROR_FUNCTION (and 107 more)] === [2021-11-07 00:59:26,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 00:59:26,157 INFO L85 PathProgramCache]: Analyzing trace with hash -1392235085, now seen corresponding path program 1 times [2021-11-07 00:59:26,160 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 00:59:26,160 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1823450831] [2021-11-07 00:59:26,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 00:59:26,160 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 00:59:26,160 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 00:59:26,164 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 00:59:26,207 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-07 00:59:27,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 00:59:27,665 INFO L263 TraceCheckSpWp]: Trace formula consists of 813 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 00:59:27,668 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 00:59:27,968 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 00:59:27,969 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 00:59:28,258 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 00:59:28,258 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 00:59:28,258 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1823450831] [2021-11-07 00:59:28,258 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1823450831] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 00:59:28,259 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 00:59:28,259 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 00:59:28,259 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761481019] [2021-11-07 00:59:28,260 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 00:59:28,260 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 00:59:28,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 00:59:28,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 00:59:28,261 INFO L87 Difference]: Start difference. First operand 1475 states and 1814 transitions. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 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 00:59:28,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 00:59:28,424 INFO L93 Difference]: Finished difference Result 1475 states and 1814 transitions. [2021-11-07 00:59:28,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 00:59:28,425 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 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 35 [2021-11-07 00:59:28,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 00:59:28,438 INFO L225 Difference]: With dead ends: 1475 [2021-11-07 00:59:28,438 INFO L226 Difference]: Without dead ends: 1471 [2021-11-07 00:59:28,439 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-07 00:59:28,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1471 states. [2021-11-07 00:59:28,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1471 to 1471. [2021-11-07 00:59:28,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1471 states, 1257 states have (on average 1.2871917263325379) internal successors, (1618), 1372 states have internal predecessors, (1618), 96 states have call successors, (96), 14 states have call predecessors, (96), 14 states have return successors, (96), 87 states have call predecessors, (96), 96 states have call successors, (96) [2021-11-07 00:59:28,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1471 states to 1471 states and 1810 transitions. [2021-11-07 00:59:28,556 INFO L78 Accepts]: Start accepts. Automaton has 1471 states and 1810 transitions. Word has length 35 [2021-11-07 00:59:28,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 00:59:28,557 INFO L470 AbstractCegarLoop]: Abstraction has 1471 states and 1810 transitions. [2021-11-07 00:59:28,557 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 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 00:59:28,557 INFO L276 IsEmpty]: Start isEmpty. Operand 1471 states and 1810 transitions. [2021-11-07 00:59:28,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-07 00:59:28,560 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 00:59:28,560 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] [2021-11-07 00:59:28,604 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-07 00:59:28,784 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 00:59:28,784 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [change_modeErr0ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr1ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr2ASSERT_VIOLATIONERROR_FUNCTION (and 107 more)] === [2021-11-07 00:59:28,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 00:59:28,785 INFO L85 PathProgramCache]: Analyzing trace with hash 2092073783, now seen corresponding path program 1 times [2021-11-07 00:59:28,787 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 00:59:28,788 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1838822790] [2021-11-07 00:59:28,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 00:59:28,788 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 00:59:28,788 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 00:59:28,791 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 00:59:28,812 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-07 00:59:30,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 00:59:30,157 INFO L263 TraceCheckSpWp]: Trace formula consists of 816 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 00:59:30,160 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 00:59:30,415 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 00:59:30,415 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 00:59:30,676 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 00:59:30,676 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 00:59:30,676 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1838822790] [2021-11-07 00:59:30,676 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1838822790] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 00:59:30,676 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 00:59:30,677 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 00:59:30,677 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962020343] [2021-11-07 00:59:30,677 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 00:59:30,677 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 00:59:30,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 00:59:30,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 00:59:30,678 INFO L87 Difference]: Start difference. First operand 1471 states and 1810 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 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 00:59:30,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 00:59:30,849 INFO L93 Difference]: Finished difference Result 1471 states and 1810 transitions. [2021-11-07 00:59:30,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 00:59:30,850 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 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 37 [2021-11-07 00:59:30,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 00:59:30,861 INFO L225 Difference]: With dead ends: 1471 [2021-11-07 00:59:30,861 INFO L226 Difference]: Without dead ends: 1467 [2021-11-07 00:59:30,862 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-07 00:59:30,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1467 states. [2021-11-07 00:59:30,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1467 to 1467. [2021-11-07 00:59:30,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1467 states, 1255 states have (on average 1.2860557768924303) internal successors, (1614), 1368 states have internal predecessors, (1614), 96 states have call successors, (96), 14 states have call predecessors, (96), 14 states have return successors, (96), 87 states have call predecessors, (96), 96 states have call successors, (96) [2021-11-07 00:59:30,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1467 states to 1467 states and 1806 transitions. [2021-11-07 00:59:30,956 INFO L78 Accepts]: Start accepts. Automaton has 1467 states and 1806 transitions. Word has length 37 [2021-11-07 00:59:30,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 00:59:30,958 INFO L470 AbstractCegarLoop]: Abstraction has 1467 states and 1806 transitions. [2021-11-07 00:59:30,959 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 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 00:59:30,959 INFO L276 IsEmpty]: Start isEmpty. Operand 1467 states and 1806 transitions. [2021-11-07 00:59:30,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-07 00:59:30,962 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 00:59:30,962 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] [2021-11-07 00:59:30,994 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-07 00:59:31,188 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 00:59:31,188 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION === [change_modeErr0ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr1ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr2ASSERT_VIOLATIONERROR_FUNCTION (and 107 more)] === [2021-11-07 00:59:31,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 00:59:31,189 INFO L85 PathProgramCache]: Analyzing trace with hash 438405403, now seen corresponding path program 1 times [2021-11-07 00:59:31,190 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 00:59:31,191 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2020915565] [2021-11-07 00:59:31,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 00:59:31,191 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 00:59:31,191 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 00:59:31,192 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 00:59:31,207 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-07 00:59:32,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 00:59:32,422 INFO L263 TraceCheckSpWp]: Trace formula consists of 819 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 00:59:32,425 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 00:59:32,708 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 00:59:32,708 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 00:59:32,980 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 00:59:32,980 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 00:59:32,980 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2020915565] [2021-11-07 00:59:32,980 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2020915565] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 00:59:32,980 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 00:59:32,981 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 00:59:32,981 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542745799] [2021-11-07 00:59:32,981 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 00:59:32,981 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 00:59:32,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 00:59:32,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 00:59:32,982 INFO L87 Difference]: Start difference. First operand 1467 states and 1806 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 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 00:59:33,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 00:59:33,109 INFO L93 Difference]: Finished difference Result 1467 states and 1806 transitions. [2021-11-07 00:59:33,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 00:59:33,110 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 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 39 [2021-11-07 00:59:33,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 00:59:33,119 INFO L225 Difference]: With dead ends: 1467 [2021-11-07 00:59:33,120 INFO L226 Difference]: Without dead ends: 1463 [2021-11-07 00:59:33,121 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-07 00:59:33,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1463 states. [2021-11-07 00:59:33,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1463 to 1463. [2021-11-07 00:59:33,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1463 states, 1253 states have (on average 1.2849162011173185) internal successors, (1610), 1364 states have internal predecessors, (1610), 96 states have call successors, (96), 14 states have call predecessors, (96), 14 states have return successors, (96), 87 states have call predecessors, (96), 96 states have call successors, (96) [2021-11-07 00:59:33,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1463 states to 1463 states and 1802 transitions. [2021-11-07 00:59:33,251 INFO L78 Accepts]: Start accepts. Automaton has 1463 states and 1802 transitions. Word has length 39 [2021-11-07 00:59:33,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 00:59:33,252 INFO L470 AbstractCegarLoop]: Abstraction has 1463 states and 1802 transitions. [2021-11-07 00:59:33,252 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 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 00:59:33,252 INFO L276 IsEmpty]: Start isEmpty. Operand 1463 states and 1802 transitions. [2021-11-07 00:59:33,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-07 00:59:33,258 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 00:59:33,259 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] [2021-11-07 00:59:33,293 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-07 00:59:33,477 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 00:59:33,477 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [change_modeErr0ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr1ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr2ASSERT_VIOLATIONERROR_FUNCTION (and 107 more)] === [2021-11-07 00:59:33,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 00:59:33,478 INFO L85 PathProgramCache]: Analyzing trace with hash 400992095, now seen corresponding path program 1 times [2021-11-07 00:59:33,480 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 00:59:33,480 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [533975185] [2021-11-07 00:59:33,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 00:59:33,480 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 00:59:33,480 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 00:59:33,483 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 00:59:33,523 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-07 00:59:34,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 00:59:34,776 INFO L263 TraceCheckSpWp]: Trace formula consists of 822 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 00:59:34,779 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 00:59:35,121 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 00:59:35,121 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 00:59:35,391 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 00:59:35,391 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 00:59:35,392 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [533975185] [2021-11-07 00:59:35,392 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [533975185] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 00:59:35,392 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 00:59:35,393 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 00:59:35,393 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175927505] [2021-11-07 00:59:35,393 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 00:59:35,393 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 00:59:35,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 00:59:35,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 00:59:35,395 INFO L87 Difference]: Start difference. First operand 1463 states and 1802 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 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 00:59:35,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 00:59:35,553 INFO L93 Difference]: Finished difference Result 1463 states and 1802 transitions. [2021-11-07 00:59:35,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 00:59:35,554 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 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 41 [2021-11-07 00:59:35,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 00:59:35,568 INFO L225 Difference]: With dead ends: 1463 [2021-11-07 00:59:35,569 INFO L226 Difference]: Without dead ends: 1459 [2021-11-07 00:59:35,570 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-07 00:59:35,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1459 states. [2021-11-07 00:59:35,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1459 to 1459. [2021-11-07 00:59:35,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1459 states, 1251 states have (on average 1.2837729816147083) internal successors, (1606), 1360 states have internal predecessors, (1606), 96 states have call successors, (96), 14 states have call predecessors, (96), 14 states have return successors, (96), 87 states have call predecessors, (96), 96 states have call successors, (96) [2021-11-07 00:59:35,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1459 states to 1459 states and 1798 transitions. [2021-11-07 00:59:35,697 INFO L78 Accepts]: Start accepts. Automaton has 1459 states and 1798 transitions. Word has length 41 [2021-11-07 00:59:35,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 00:59:35,698 INFO L470 AbstractCegarLoop]: Abstraction has 1459 states and 1798 transitions. [2021-11-07 00:59:35,698 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 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 00:59:35,698 INFO L276 IsEmpty]: Start isEmpty. Operand 1459 states and 1798 transitions. [2021-11-07 00:59:35,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-07 00:59:35,700 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 00:59:35,703 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] [2021-11-07 00:59:35,739 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Ended with exit code 0 [2021-11-07 00:59:35,928 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 00:59:35,929 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION === [change_modeErr0ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr1ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr2ASSERT_VIOLATIONERROR_FUNCTION (and 107 more)] === [2021-11-07 00:59:35,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 00:59:35,929 INFO L85 PathProgramCache]: Analyzing trace with hash -1193458173, now seen corresponding path program 1 times [2021-11-07 00:59:35,930 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 00:59:35,930 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [57516775] [2021-11-07 00:59:35,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 00:59:35,931 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 00:59:35,931 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 00:59:35,932 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 00:59:35,933 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-07 00:59:37,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 00:59:37,372 INFO L263 TraceCheckSpWp]: Trace formula consists of 825 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 00:59:37,374 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 00:59:37,643 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 00:59:37,643 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 00:59:37,918 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 00:59:37,918 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 00:59:37,918 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [57516775] [2021-11-07 00:59:37,918 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [57516775] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 00:59:37,918 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 00:59:37,918 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 00:59:37,919 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503294134] [2021-11-07 00:59:37,919 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 00:59:37,919 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 00:59:37,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 00:59:37,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 00:59:37,921 INFO L87 Difference]: Start difference. First operand 1459 states and 1798 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 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 00:59:38,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 00:59:38,060 INFO L93 Difference]: Finished difference Result 1459 states and 1798 transitions. [2021-11-07 00:59:38,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 00:59:38,061 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 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 43 [2021-11-07 00:59:38,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 00:59:38,071 INFO L225 Difference]: With dead ends: 1459 [2021-11-07 00:59:38,072 INFO L226 Difference]: Without dead ends: 1455 [2021-11-07 00:59:38,073 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-07 00:59:38,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1455 states. [2021-11-07 00:59:38,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1455 to 1455. [2021-11-07 00:59:38,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1455 states, 1249 states have (on average 1.2826261008807045) internal successors, (1602), 1356 states have internal predecessors, (1602), 96 states have call successors, (96), 14 states have call predecessors, (96), 14 states have return successors, (96), 87 states have call predecessors, (96), 96 states have call successors, (96) [2021-11-07 00:59:38,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1455 states to 1455 states and 1794 transitions. [2021-11-07 00:59:38,186 INFO L78 Accepts]: Start accepts. Automaton has 1455 states and 1794 transitions. Word has length 43 [2021-11-07 00:59:38,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 00:59:38,187 INFO L470 AbstractCegarLoop]: Abstraction has 1455 states and 1794 transitions. [2021-11-07 00:59:38,187 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 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 00:59:38,187 INFO L276 IsEmpty]: Start isEmpty. Operand 1455 states and 1794 transitions. [2021-11-07 00:59:38,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-07 00:59:38,188 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 00:59:38,189 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] [2021-11-07 00:59:38,227 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-07 00:59:38,408 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 00:59:38,409 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [change_modeErr0ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr1ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr2ASSERT_VIOLATIONERROR_FUNCTION (and 107 more)] === [2021-11-07 00:59:38,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 00:59:38,409 INFO L85 PathProgramCache]: Analyzing trace with hash -156840697, now seen corresponding path program 1 times [2021-11-07 00:59:38,410 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 00:59:38,411 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [518503879] [2021-11-07 00:59:38,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 00:59:38,411 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 00:59:38,411 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 00:59:38,413 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 00:59:38,453 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-07 00:59:39,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 00:59:40,004 INFO L263 TraceCheckSpWp]: Trace formula consists of 828 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 00:59:40,006 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 00:59:40,322 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 00:59:40,322 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 00:59:40,617 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 00:59:40,617 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 00:59:40,617 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [518503879] [2021-11-07 00:59:40,617 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [518503879] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 00:59:40,618 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 00:59:40,618 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 00:59:40,618 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420600358] [2021-11-07 00:59:40,619 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 00:59:40,619 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 00:59:40,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 00:59:40,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 00:59:40,620 INFO L87 Difference]: Start difference. First operand 1455 states and 1794 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 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 00:59:40,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 00:59:40,920 INFO L93 Difference]: Finished difference Result 2750 states and 3498 transitions. [2021-11-07 00:59:40,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 00:59:40,921 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 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 45 [2021-11-07 00:59:40,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 00:59:40,946 INFO L225 Difference]: With dead ends: 2750 [2021-11-07 00:59:40,946 INFO L226 Difference]: Without dead ends: 2746 [2021-11-07 00:59:40,948 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-07 00:59:40,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2746 states. [2021-11-07 00:59:41,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2746 to 2519. [2021-11-07 00:59:41,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2519 states, 2208 states have (on average 1.2934782608695652) internal successors, (2856), 2324 states have internal predecessors, (2856), 188 states have call successors, (188), 27 states have call predecessors, (188), 27 states have return successors, (282), 172 states have call predecessors, (282), 188 states have call successors, (282) [2021-11-07 00:59:41,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2519 states to 2519 states and 3326 transitions. [2021-11-07 00:59:41,218 INFO L78 Accepts]: Start accepts. Automaton has 2519 states and 3326 transitions. Word has length 45 [2021-11-07 00:59:41,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 00:59:41,220 INFO L470 AbstractCegarLoop]: Abstraction has 2519 states and 3326 transitions. [2021-11-07 00:59:41,220 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 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 00:59:41,220 INFO L276 IsEmpty]: Start isEmpty. Operand 2519 states and 3326 transitions. [2021-11-07 00:59:41,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-11-07 00:59:41,221 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 00:59:41,222 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] [2021-11-07 00:59:41,262 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-07 00:59:41,436 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 00:59:41,437 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [change_modeErr0ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr1ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr2ASSERT_VIOLATIONERROR_FUNCTION (and 107 more)] === [2021-11-07 00:59:41,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 00:59:41,437 INFO L85 PathProgramCache]: Analyzing trace with hash -399859574, now seen corresponding path program 1 times [2021-11-07 00:59:41,438 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 00:59:41,438 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1326160775] [2021-11-07 00:59:41,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 00:59:41,439 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 00:59:41,439 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 00:59:41,439 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 00:59:41,442 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-07 00:59:42,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 00:59:42,750 INFO L263 TraceCheckSpWp]: Trace formula consists of 831 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 00:59:42,752 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 00:59:43,051 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 00:59:43,051 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 00:59:43,375 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 00:59:43,375 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 00:59:43,375 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1326160775] [2021-11-07 00:59:43,376 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1326160775] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 00:59:43,376 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 00:59:43,376 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 00:59:43,376 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977635482] [2021-11-07 00:59:43,377 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 00:59:43,377 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 00:59:43,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 00:59:43,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 00:59:43,378 INFO L87 Difference]: Start difference. First operand 2519 states and 3326 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 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 00:59:43,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 00:59:43,637 INFO L93 Difference]: Finished difference Result 2519 states and 3326 transitions. [2021-11-07 00:59:43,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 00:59:43,638 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 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 47 [2021-11-07 00:59:43,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 00:59:43,656 INFO L225 Difference]: With dead ends: 2519 [2021-11-07 00:59:43,656 INFO L226 Difference]: Without dead ends: 2515 [2021-11-07 00:59:43,658 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-07 00:59:43,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2515 states. [2021-11-07 00:59:43,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2515 to 2515. [2021-11-07 00:59:43,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2515 states, 2206 states have (on average 1.2928377153218495) internal successors, (2852), 2320 states have internal predecessors, (2852), 188 states have call successors, (188), 27 states have call predecessors, (188), 27 states have return successors, (282), 172 states have call predecessors, (282), 188 states have call successors, (282) [2021-11-07 00:59:43,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2515 states to 2515 states and 3322 transitions. [2021-11-07 00:59:43,909 INFO L78 Accepts]: Start accepts. Automaton has 2515 states and 3322 transitions. Word has length 47 [2021-11-07 00:59:43,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 00:59:43,910 INFO L470 AbstractCegarLoop]: Abstraction has 2515 states and 3322 transitions. [2021-11-07 00:59:43,910 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 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 00:59:43,910 INFO L276 IsEmpty]: Start isEmpty. Operand 2515 states and 3322 transitions. [2021-11-07 00:59:43,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-11-07 00:59:43,911 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 00:59:43,911 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] [2021-11-07 00:59:43,945 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-07 00:59:44,136 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 00:59:44,136 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [change_modeErr0ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr1ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr2ASSERT_VIOLATIONERROR_FUNCTION (and 107 more)] === [2021-11-07 00:59:44,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 00:59:44,137 INFO L85 PathProgramCache]: Analyzing trace with hash -2012765074, now seen corresponding path program 1 times [2021-11-07 00:59:44,138 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 00:59:44,138 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [508926002] [2021-11-07 00:59:44,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 00:59:44,139 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 00:59:44,139 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 00:59:44,139 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 00:59:44,141 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-07 00:59:45,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 00:59:45,487 INFO L263 TraceCheckSpWp]: Trace formula consists of 834 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 00:59:45,492 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 00:59:45,781 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 00:59:45,781 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 00:59:46,079 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 00:59:46,079 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 00:59:46,079 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [508926002] [2021-11-07 00:59:46,079 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [508926002] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 00:59:46,079 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 00:59:46,079 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 00:59:46,079 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620793400] [2021-11-07 00:59:46,080 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 00:59:46,080 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 00:59:46,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 00:59:46,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 00:59:46,081 INFO L87 Difference]: Start difference. First operand 2515 states and 3322 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 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 00:59:46,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 00:59:46,323 INFO L93 Difference]: Finished difference Result 2515 states and 3322 transitions. [2021-11-07 00:59:46,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 00:59:46,324 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 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 49 [2021-11-07 00:59:46,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 00:59:46,343 INFO L225 Difference]: With dead ends: 2515 [2021-11-07 00:59:46,344 INFO L226 Difference]: Without dead ends: 2511 [2021-11-07 00:59:46,346 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-07 00:59:46,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2511 states. [2021-11-07 00:59:46,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2511 to 2511. [2021-11-07 00:59:46,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2511 states, 2204 states have (on average 1.2921960072595282) internal successors, (2848), 2316 states have internal predecessors, (2848), 188 states have call successors, (188), 27 states have call predecessors, (188), 27 states have return successors, (282), 172 states have call predecessors, (282), 188 states have call successors, (282) [2021-11-07 00:59:46,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2511 states to 2511 states and 3318 transitions. [2021-11-07 00:59:46,619 INFO L78 Accepts]: Start accepts. Automaton has 2511 states and 3318 transitions. Word has length 49 [2021-11-07 00:59:46,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 00:59:46,619 INFO L470 AbstractCegarLoop]: Abstraction has 2511 states and 3318 transitions. [2021-11-07 00:59:46,620 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 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 00:59:46,620 INFO L276 IsEmpty]: Start isEmpty. Operand 2511 states and 3318 transitions. [2021-11-07 00:59:46,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-11-07 00:59:46,621 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 00:59:46,621 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] [2021-11-07 00:59:46,663 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-07 00:59:46,844 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 00:59:46,844 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION === [change_modeErr0ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr1ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr2ASSERT_VIOLATIONERROR_FUNCTION (and 107 more)] === [2021-11-07 00:59:46,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 00:59:46,845 INFO L85 PathProgramCache]: Analyzing trace with hash -1531756366, now seen corresponding path program 1 times [2021-11-07 00:59:46,846 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 00:59:46,846 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2070758907] [2021-11-07 00:59:46,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 00:59:46,846 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 00:59:46,847 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 00:59:46,848 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 00:59:46,888 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-07 00:59:48,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 00:59:48,298 INFO L263 TraceCheckSpWp]: Trace formula consists of 837 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 00:59:48,300 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 00:59:48,621 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 00:59:48,622 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 00:59:48,926 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 00:59:48,926 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 00:59:48,926 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2070758907] [2021-11-07 00:59:48,926 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2070758907] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 00:59:48,926 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 00:59:48,926 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 00:59:48,927 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446758668] [2021-11-07 00:59:48,927 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 00:59:48,927 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 00:59:48,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 00:59:48,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 00:59:48,928 INFO L87 Difference]: Start difference. First operand 2511 states and 3318 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 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 00:59:49,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 00:59:49,237 INFO L93 Difference]: Finished difference Result 2511 states and 3318 transitions. [2021-11-07 00:59:49,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 00:59:49,238 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 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 51 [2021-11-07 00:59:49,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 00:59:49,259 INFO L225 Difference]: With dead ends: 2511 [2021-11-07 00:59:49,259 INFO L226 Difference]: Without dead ends: 2507 [2021-11-07 00:59:49,261 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-07 00:59:49,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2507 states. [2021-11-07 00:59:49,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2507 to 2507. [2021-11-07 00:59:49,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2507 states, 2202 states have (on average 1.2915531335149864) internal successors, (2844), 2312 states have internal predecessors, (2844), 188 states have call successors, (188), 27 states have call predecessors, (188), 27 states have return successors, (282), 172 states have call predecessors, (282), 188 states have call successors, (282) [2021-11-07 00:59:49,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2507 states to 2507 states and 3314 transitions. [2021-11-07 00:59:49,616 INFO L78 Accepts]: Start accepts. Automaton has 2507 states and 3314 transitions. Word has length 51 [2021-11-07 00:59:49,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 00:59:49,617 INFO L470 AbstractCegarLoop]: Abstraction has 2507 states and 3314 transitions. [2021-11-07 00:59:49,618 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 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 00:59:49,618 INFO L276 IsEmpty]: Start isEmpty. Operand 2507 states and 3314 transitions. [2021-11-07 00:59:49,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-11-07 00:59:49,619 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 00:59:49,620 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] [2021-11-07 00:59:49,654 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-07 00:59:49,832 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 00:59:49,833 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION === [change_modeErr0ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr1ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr2ASSERT_VIOLATIONERROR_FUNCTION (and 107 more)] === [2021-11-07 00:59:49,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 00:59:49,833 INFO L85 PathProgramCache]: Analyzing trace with hash 1156111702, now seen corresponding path program 1 times [2021-11-07 00:59:49,834 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 00:59:49,834 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [643903819] [2021-11-07 00:59:49,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 00:59:49,835 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 00:59:49,835 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 00:59:49,836 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 00:59:49,838 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-07 00:59:51,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 00:59:51,126 INFO L263 TraceCheckSpWp]: Trace formula consists of 840 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 00:59:51,127 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 00:59:51,439 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 00:59:51,439 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 00:59:51,745 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 00:59:51,745 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 00:59:51,745 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [643903819] [2021-11-07 00:59:51,746 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [643903819] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 00:59:51,746 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 00:59:51,746 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 00:59:51,746 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464923053] [2021-11-07 00:59:51,746 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 00:59:51,746 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 00:59:51,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 00:59:51,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 00:59:51,747 INFO L87 Difference]: Start difference. First operand 2507 states and 3314 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 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 00:59:52,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 00:59:52,010 INFO L93 Difference]: Finished difference Result 2507 states and 3314 transitions. [2021-11-07 00:59:52,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 00:59:52,011 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 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 53 [2021-11-07 00:59:52,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 00:59:52,027 INFO L225 Difference]: With dead ends: 2507 [2021-11-07 00:59:52,027 INFO L226 Difference]: Without dead ends: 2503 [2021-11-07 00:59:52,029 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-07 00:59:52,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2503 states. [2021-11-07 00:59:52,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2503 to 2503. [2021-11-07 00:59:52,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2503 states, 2200 states have (on average 1.290909090909091) internal successors, (2840), 2308 states have internal predecessors, (2840), 188 states have call successors, (188), 27 states have call predecessors, (188), 27 states have return successors, (282), 172 states have call predecessors, (282), 188 states have call successors, (282) [2021-11-07 00:59:52,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2503 states to 2503 states and 3310 transitions. [2021-11-07 00:59:52,311 INFO L78 Accepts]: Start accepts. Automaton has 2503 states and 3310 transitions. Word has length 53 [2021-11-07 00:59:52,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 00:59:52,311 INFO L470 AbstractCegarLoop]: Abstraction has 2503 states and 3310 transitions. [2021-11-07 00:59:52,311 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 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 00:59:52,312 INFO L276 IsEmpty]: Start isEmpty. Operand 2503 states and 3310 transitions. [2021-11-07 00:59:52,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-11-07 00:59:52,313 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 00:59:52,313 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] [2021-11-07 00:59:52,348 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-11-07 00:59:52,536 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 00:59:52,536 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting submit_async_requestErr0ASSERT_VIOLATIONERROR_FUNCTION === [change_modeErr0ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr1ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr2ASSERT_VIOLATIONERROR_FUNCTION (and 107 more)] === [2021-11-07 00:59:52,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 00:59:52,537 INFO L85 PathProgramCache]: Analyzing trace with hash -1509816055, now seen corresponding path program 1 times [2021-11-07 00:59:52,538 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 00:59:52,538 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [287107091] [2021-11-07 00:59:52,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 00:59:52,538 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 00:59:52,538 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 00:59:52,539 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 00:59:52,541 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-11-07 00:59:53,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 00:59:53,963 INFO L263 TraceCheckSpWp]: Trace formula consists of 953 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-07 00:59:53,966 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 00:59:54,853 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 00:59:54,853 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 00:59:56,169 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 00:59:56,169 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 00:59:56,170 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [287107091] [2021-11-07 00:59:56,170 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [287107091] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 00:59:56,170 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 00:59:56,170 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16, 16] imperfect sequences [] total 29 [2021-11-07 00:59:56,170 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930697478] [2021-11-07 00:59:56,171 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2021-11-07 00:59:56,171 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 00:59:56,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-11-07 00:59:56,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=744, Unknown=0, NotChecked=0, Total=812 [2021-11-07 00:59:56,172 INFO L87 Difference]: Start difference. First operand 2503 states and 3310 transitions. Second operand has 29 states, 29 states have (on average 2.5517241379310347) internal successors, (74), 29 states have internal predecessors, (74), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:59:59,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 00:59:59,774 INFO L93 Difference]: Finished difference Result 5182 states and 6797 transitions. [2021-11-07 00:59:59,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-11-07 00:59:59,775 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 2.5517241379310347) internal successors, (74), 29 states have internal predecessors, (74), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2021-11-07 00:59:59,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 00:59:59,850 INFO L225 Difference]: With dead ends: 5182 [2021-11-07 00:59:59,851 INFO L226 Difference]: Without dead ends: 2688 [2021-11-07 00:59:59,881 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 192 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=488, Invalid=1962, Unknown=0, NotChecked=0, Total=2450 [2021-11-07 00:59:59,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2688 states. [2021-11-07 01:00:00,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2688 to 2535. [2021-11-07 01:00:00,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2535 states, 2232 states have (on average 1.2867383512544803) internal successors, (2872), 2340 states have internal predecessors, (2872), 188 states have call successors, (188), 27 states have call predecessors, (188), 27 states have return successors, (282), 172 states have call predecessors, (282), 188 states have call successors, (282) [2021-11-07 01:00:00,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2535 states to 2535 states and 3342 transitions. [2021-11-07 01:00:00,189 INFO L78 Accepts]: Start accepts. Automaton has 2535 states and 3342 transitions. Word has length 55 [2021-11-07 01:00:00,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:00:00,189 INFO L470 AbstractCegarLoop]: Abstraction has 2535 states and 3342 transitions. [2021-11-07 01:00:00,189 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 2.5517241379310347) internal successors, (74), 29 states have internal predecessors, (74), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:00:00,190 INFO L276 IsEmpty]: Start isEmpty. Operand 2535 states and 3342 transitions. [2021-11-07 01:00:00,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-11-07 01:00:00,191 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:00:00,191 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] [2021-11-07 01:00:00,227 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-11-07 01:00:00,416 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:00:00,416 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting submit_async_requestErr0ASSERT_VIOLATIONERROR_FUNCTION === [change_modeErr0ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr1ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr2ASSERT_VIOLATIONERROR_FUNCTION (and 107 more)] === [2021-11-07 01:00:00,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:00:00,417 INFO L85 PathProgramCache]: Analyzing trace with hash -1101688051, now seen corresponding path program 1 times [2021-11-07 01:00:00,418 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:00:00,418 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1155565508] [2021-11-07 01:00:00,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:00:00,418 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:00:00,418 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:00:00,419 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:00:00,420 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-11-07 01:00:01,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:00:01,877 INFO L263 TraceCheckSpWp]: Trace formula consists of 952 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 01:00:01,879 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:00:02,150 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 01:00:02,150 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:00:02,415 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 01:00:02,415 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:00:02,415 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1155565508] [2021-11-07 01:00:02,416 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1155565508] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:00:02,416 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:00:02,416 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-07 01:00:02,416 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451186984] [2021-11-07 01:00:02,416 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:00:02,416 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:00:02,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:00:02,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:00:02,417 INFO L87 Difference]: Start difference. First operand 2535 states and 3342 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:00:03,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:00:03,385 INFO L93 Difference]: Finished difference Result 4733 states and 6260 transitions. [2021-11-07 01:00:03,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 01:00:03,386 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2021-11-07 01:00:03,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:00:03,406 INFO L225 Difference]: With dead ends: 4733 [2021-11-07 01:00:03,407 INFO L226 Difference]: Without dead ends: 2606 [2021-11-07 01:00:03,428 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-07 01:00:03,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2606 states. [2021-11-07 01:00:03,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2606 to 2533. [2021-11-07 01:00:03,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2533 states, 2230 states have (on average 1.2865470852017937) internal successors, (2869), 2338 states have internal predecessors, (2869), 188 states have call successors, (188), 27 states have call predecessors, (188), 27 states have return successors, (282), 172 states have call predecessors, (282), 188 states have call successors, (282) [2021-11-07 01:00:03,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2533 states to 2533 states and 3339 transitions. [2021-11-07 01:00:03,711 INFO L78 Accepts]: Start accepts. Automaton has 2533 states and 3339 transitions. Word has length 55 [2021-11-07 01:00:03,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:00:03,712 INFO L470 AbstractCegarLoop]: Abstraction has 2533 states and 3339 transitions. [2021-11-07 01:00:03,712 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:00:03,712 INFO L276 IsEmpty]: Start isEmpty. Operand 2533 states and 3339 transitions. [2021-11-07 01:00:03,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-11-07 01:00:03,712 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:00:03,713 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] [2021-11-07 01:00:03,737 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-11-07 01:00:03,915 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:00:03,916 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION === [change_modeErr0ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr1ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr2ASSERT_VIOLATIONERROR_FUNCTION (and 107 more)] === [2021-11-07 01:00:03,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:00:03,916 INFO L85 PathProgramCache]: Analyzing trace with hash -1372986790, now seen corresponding path program 1 times [2021-11-07 01:00:03,917 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:00:03,917 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1120457082] [2021-11-07 01:00:03,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:00:03,918 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:00:03,918 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:00:03,919 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:00:03,928 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-11-07 01:00:05,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:00:05,206 INFO L263 TraceCheckSpWp]: Trace formula consists of 843 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 01:00:05,207 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:00:05,529 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 01:00:05,529 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:00:05,859 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 01:00:05,859 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:00:05,859 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1120457082] [2021-11-07 01:00:05,859 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1120457082] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:00:05,859 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:00:05,860 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 01:00:05,860 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352207324] [2021-11-07 01:00:05,860 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:00:05,860 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:00:05,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:00:05,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:00:05,861 INFO L87 Difference]: Start difference. First operand 2533 states and 3339 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 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 01:00:06,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:00:06,090 INFO L93 Difference]: Finished difference Result 2533 states and 3339 transitions. [2021-11-07 01:00:06,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 01:00:06,091 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 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 55 [2021-11-07 01:00:06,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:00:06,103 INFO L225 Difference]: With dead ends: 2533 [2021-11-07 01:00:06,103 INFO L226 Difference]: Without dead ends: 2529 [2021-11-07 01:00:06,105 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-07 01:00:06,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2529 states. [2021-11-07 01:00:06,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2529 to 2529. [2021-11-07 01:00:06,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2529 states, 2228 states have (on average 1.2859066427289048) internal successors, (2865), 2334 states have internal predecessors, (2865), 188 states have call successors, (188), 27 states have call predecessors, (188), 27 states have return successors, (282), 172 states have call predecessors, (282), 188 states have call successors, (282) [2021-11-07 01:00:06,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2529 states to 2529 states and 3335 transitions. [2021-11-07 01:00:06,488 INFO L78 Accepts]: Start accepts. Automaton has 2529 states and 3335 transitions. Word has length 55 [2021-11-07 01:00:06,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:00:06,489 INFO L470 AbstractCegarLoop]: Abstraction has 2529 states and 3335 transitions. [2021-11-07 01:00:06,489 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 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 01:00:06,489 INFO L276 IsEmpty]: Start isEmpty. Operand 2529 states and 3335 transitions. [2021-11-07 01:00:06,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-07 01:00:06,497 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:00:06,497 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] [2021-11-07 01:00:06,533 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2021-11-07 01:00:06,720 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:00:06,720 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [change_modeErr0ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr1ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr2ASSERT_VIOLATIONERROR_FUNCTION (and 107 more)] === [2021-11-07 01:00:06,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:00:06,721 INFO L85 PathProgramCache]: Analyzing trace with hash -885147714, now seen corresponding path program 1 times [2021-11-07 01:00:06,722 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:00:06,722 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1938797183] [2021-11-07 01:00:06,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:00:06,723 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:00:06,723 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:00:06,724 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:00:06,726 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-11-07 01:00:08,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:00:08,194 INFO L263 TraceCheckSpWp]: Trace formula consists of 846 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 01:00:08,196 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:00:08,623 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 01:00:08,623 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:00:09,072 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 01:00:09,072 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:00:09,072 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1938797183] [2021-11-07 01:00:09,073 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1938797183] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:00:09,073 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:00:09,073 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 01:00:09,073 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677710901] [2021-11-07 01:00:09,073 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:00:09,074 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:00:09,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:00:09,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:00:09,077 INFO L87 Difference]: Start difference. First operand 2529 states and 3335 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 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 01:00:09,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:00:09,315 INFO L93 Difference]: Finished difference Result 2529 states and 3335 transitions. [2021-11-07 01:00:09,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 01:00:09,315 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 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 57 [2021-11-07 01:00:09,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:00:09,324 INFO L225 Difference]: With dead ends: 2529 [2021-11-07 01:00:09,324 INFO L226 Difference]: Without dead ends: 2525 [2021-11-07 01:00:09,325 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-07 01:00:09,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2525 states. [2021-11-07 01:00:09,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2525 to 2525. [2021-11-07 01:00:09,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2525 states, 2226 states have (on average 1.2852650494159927) internal successors, (2861), 2330 states have internal predecessors, (2861), 188 states have call successors, (188), 27 states have call predecessors, (188), 27 states have return successors, (282), 172 states have call predecessors, (282), 188 states have call successors, (282) [2021-11-07 01:00:09,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2525 states to 2525 states and 3331 transitions. [2021-11-07 01:00:09,609 INFO L78 Accepts]: Start accepts. Automaton has 2525 states and 3331 transitions. Word has length 57 [2021-11-07 01:00:09,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:00:09,610 INFO L470 AbstractCegarLoop]: Abstraction has 2525 states and 3331 transitions. [2021-11-07 01:00:09,610 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 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 01:00:09,610 INFO L276 IsEmpty]: Start isEmpty. Operand 2525 states and 3331 transitions. [2021-11-07 01:00:09,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-11-07 01:00:09,612 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:00:09,612 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] [2021-11-07 01:00:09,652 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2021-11-07 01:00:09,836 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:00:09,836 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION === [change_modeErr0ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr1ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr2ASSERT_VIOLATIONERROR_FUNCTION (and 107 more)] === [2021-11-07 01:00:09,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:00:09,837 INFO L85 PathProgramCache]: Analyzing trace with hash -223230590, now seen corresponding path program 1 times [2021-11-07 01:00:09,838 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:00:09,838 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1730176297] [2021-11-07 01:00:09,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:00:09,838 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:00:09,838 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:00:09,839 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:00:09,841 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2021-11-07 01:00:11,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:00:11,128 INFO L263 TraceCheckSpWp]: Trace formula consists of 849 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 01:00:11,130 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:00:11,455 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 01:00:11,455 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:00:12,268 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 01:00:12,268 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:00:12,268 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1730176297] [2021-11-07 01:00:12,269 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1730176297] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:00:12,269 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:00:12,269 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-11-07 01:00:12,269 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056266876] [2021-11-07 01:00:12,270 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 01:00:12,270 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:00:12,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 01:00:12,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-07 01:00:12,271 INFO L87 Difference]: Start difference. First operand 2525 states and 3331 transitions. Second operand has 6 states, 6 states have (on average 19.5) internal successors, (117), 5 states have internal predecessors, (117), 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 01:00:12,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:00:12,520 INFO L93 Difference]: Finished difference Result 2525 states and 3331 transitions. [2021-11-07 01:00:12,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 01:00:12,521 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 19.5) internal successors, (117), 5 states have internal predecessors, (117), 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 59 [2021-11-07 01:00:12,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:00:12,532 INFO L225 Difference]: With dead ends: 2525 [2021-11-07 01:00:12,532 INFO L226 Difference]: Without dead ends: 2521 [2021-11-07 01:00:12,534 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-07 01:00:12,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2521 states. [2021-11-07 01:00:12,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2521 to 2521. [2021-11-07 01:00:12,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2521 states, 2224 states have (on average 1.2846223021582734) internal successors, (2857), 2326 states have internal predecessors, (2857), 188 states have call successors, (188), 27 states have call predecessors, (188), 27 states have return successors, (282), 172 states have call predecessors, (282), 188 states have call successors, (282) [2021-11-07 01:00:12,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2521 states to 2521 states and 3327 transitions. [2021-11-07 01:00:12,841 INFO L78 Accepts]: Start accepts. Automaton has 2521 states and 3327 transitions. Word has length 59 [2021-11-07 01:00:12,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:00:12,841 INFO L470 AbstractCegarLoop]: Abstraction has 2521 states and 3327 transitions. [2021-11-07 01:00:12,841 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.5) internal successors, (117), 5 states have internal predecessors, (117), 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 01:00:12,842 INFO L276 IsEmpty]: Start isEmpty. Operand 2521 states and 3327 transitions. [2021-11-07 01:00:12,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-11-07 01:00:12,843 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:00:12,843 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] [2021-11-07 01:00:12,878 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2021-11-07 01:00:13,068 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:00:13,068 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [change_modeErr0ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr1ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr2ASSERT_VIOLATIONERROR_FUNCTION (and 107 more)] === [2021-11-07 01:00:13,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:00:13,069 INFO L85 PathProgramCache]: Analyzing trace with hash 422334600, now seen corresponding path program 1 times [2021-11-07 01:00:13,070 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:00:13,071 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [584318886] [2021-11-07 01:00:13,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:00:13,071 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:00:13,071 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:00:13,072 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:00:13,112 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2021-11-07 01:00:15,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:00:15,222 INFO L263 TraceCheckSpWp]: Trace formula consists of 1069 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-07 01:00:15,225 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:00:15,403 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 01:00:15,403 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:00:15,539 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 01:00:15,539 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:00:15,539 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [584318886] [2021-11-07 01:00:15,539 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [584318886] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:00:15,539 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:00:15,540 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-07 01:00:15,540 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635122334] [2021-11-07 01:00:15,540 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:00:15,540 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:00:15,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:00:15,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:00:15,541 INFO L87 Difference]: Start difference. First operand 2521 states and 3327 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 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 01:00:16,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:00:16,262 INFO L93 Difference]: Finished difference Result 5044 states and 6649 transitions. [2021-11-07 01:00:16,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 01:00:16,263 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 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 60 [2021-11-07 01:00:16,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:00:16,274 INFO L225 Difference]: With dead ends: 5044 [2021-11-07 01:00:16,274 INFO L226 Difference]: Without dead ends: 2588 [2021-11-07 01:00:16,294 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:00:16,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2588 states. [2021-11-07 01:00:16,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2588 to 2521. [2021-11-07 01:00:16,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2521 states, 2224 states have (on average 1.2841726618705036) internal successors, (2856), 2326 states have internal predecessors, (2856), 188 states have call successors, (188), 27 states have call predecessors, (188), 27 states have return successors, (282), 172 states have call predecessors, (282), 188 states have call successors, (282) [2021-11-07 01:00:16,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2521 states to 2521 states and 3326 transitions. [2021-11-07 01:00:16,559 INFO L78 Accepts]: Start accepts. Automaton has 2521 states and 3326 transitions. Word has length 60 [2021-11-07 01:00:16,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:00:16,560 INFO L470 AbstractCegarLoop]: Abstraction has 2521 states and 3326 transitions. [2021-11-07 01:00:16,560 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 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 01:00:16,560 INFO L276 IsEmpty]: Start isEmpty. Operand 2521 states and 3326 transitions. [2021-11-07 01:00:16,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-11-07 01:00:16,561 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:00:16,561 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] [2021-11-07 01:00:16,598 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2021-11-07 01:00:16,774 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:00:16,774 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [change_modeErr0ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr1ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr2ASSERT_VIOLATIONERROR_FUNCTION (and 107 more)] === [2021-11-07 01:00:16,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:00:16,775 INFO L85 PathProgramCache]: Analyzing trace with hash 479592902, now seen corresponding path program 1 times [2021-11-07 01:00:16,776 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:00:16,776 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1799620815] [2021-11-07 01:00:16,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:00:16,776 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:00:16,776 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:00:16,777 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:00:16,785 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2021-11-07 01:00:18,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:00:18,742 INFO L263 TraceCheckSpWp]: Trace formula consists of 1069 conjuncts, 71 conjunts are in the unsatisfiable core [2021-11-07 01:00:18,744 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:00:19,334 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-07 01:00:19,353 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 14 [2021-11-07 01:00:19,598 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 24 [2021-11-07 01:00:19,608 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2021-11-07 01:00:20,213 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 01:00:20,213 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:00:20,793 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 01:00:20,794 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:00:20,794 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1799620815] [2021-11-07 01:00:20,794 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1799620815] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:00:20,794 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:00:20,794 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17, 7] imperfect sequences [] total 22 [2021-11-07 01:00:20,794 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858931715] [2021-11-07 01:00:20,794 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-11-07 01:00:20,795 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:00:20,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-11-07 01:00:20,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=407, Unknown=0, NotChecked=0, Total=462 [2021-11-07 01:00:20,796 INFO L87 Difference]: Start difference. First operand 2521 states and 3326 transitions. Second operand has 22 states, 22 states have (on average 4.136363636363637) internal successors, (91), 22 states have internal predecessors, (91), 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 01:02:39,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:02:39,297 INFO L93 Difference]: Finished difference Result 13752 states and 18515 transitions. [2021-11-07 01:02:39,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2021-11-07 01:02:39,299 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 4.136363636363637) internal successors, (91), 22 states have internal predecessors, (91), 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 60 [2021-11-07 01:02:39,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:02:39,359 INFO L225 Difference]: With dead ends: 13752 [2021-11-07 01:02:39,360 INFO L226 Difference]: Without dead ends: 11511 [2021-11-07 01:02:39,380 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 985 ImplicationChecksByTransitivity, 10.9s TimeCoverageRelationStatistics Valid=927, Invalid=3363, Unknown=0, NotChecked=0, Total=4290 [2021-11-07 01:02:39,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11511 states. [2021-11-07 01:02:40,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11511 to 2556. [2021-11-07 01:02:40,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2556 states, 2259 states have (on average 1.283311199645861) internal successors, (2899), 2361 states have internal predecessors, (2899), 188 states have call successors, (188), 27 states have call predecessors, (188), 27 states have return successors, (282), 172 states have call predecessors, (282), 188 states have call successors, (282) [2021-11-07 01:02:40,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2556 states to 2556 states and 3369 transitions. [2021-11-07 01:02:40,437 INFO L78 Accepts]: Start accepts. Automaton has 2556 states and 3369 transitions. Word has length 60 [2021-11-07 01:02:40,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:02:40,438 INFO L470 AbstractCegarLoop]: Abstraction has 2556 states and 3369 transitions. [2021-11-07 01:02:40,438 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 4.136363636363637) internal successors, (91), 22 states have internal predecessors, (91), 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 01:02:40,439 INFO L276 IsEmpty]: Start isEmpty. Operand 2556 states and 3369 transitions. [2021-11-07 01:02:40,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-11-07 01:02:40,440 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:02:40,440 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] [2021-11-07 01:02:40,487 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2021-11-07 01:02:40,653 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:02:40,653 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION === [change_modeErr0ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr1ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr2ASSERT_VIOLATIONERROR_FUNCTION (and 107 more)] === [2021-11-07 01:02:40,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:02:40,653 INFO L85 PathProgramCache]: Analyzing trace with hash 223966118, now seen corresponding path program 1 times [2021-11-07 01:02:40,654 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:02:40,654 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [54022963] [2021-11-07 01:02:40,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:02:40,655 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:02:40,655 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:02:40,655 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:02:40,658 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2021-11-07 01:02:42,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:02:42,360 INFO L263 TraceCheckSpWp]: Trace formula consists of 852 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 01:02:42,362 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:02:42,744 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 01:02:42,744 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:02:43,159 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 01:02:43,160 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:02:43,160 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [54022963] [2021-11-07 01:02:43,160 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [54022963] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:02:43,160 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:02:43,160 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 01:02:43,160 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348980670] [2021-11-07 01:02:43,161 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:02:43,161 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:02:43,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:02:43,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:02:43,161 INFO L87 Difference]: Start difference. First operand 2556 states and 3369 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 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 01:02:43,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:02:43,793 INFO L93 Difference]: Finished difference Result 2556 states and 3369 transitions. [2021-11-07 01:02:43,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 01:02:43,794 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 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 61 [2021-11-07 01:02:43,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:02:43,807 INFO L225 Difference]: With dead ends: 2556 [2021-11-07 01:02:43,807 INFO L226 Difference]: Without dead ends: 2552 [2021-11-07 01:02:43,809 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 116 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-07 01:02:43,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2552 states. [2021-11-07 01:02:44,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2552 to 2552. [2021-11-07 01:02:44,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2552 states, 2257 states have (on average 1.2826761187416924) internal successors, (2895), 2357 states have internal predecessors, (2895), 188 states have call successors, (188), 27 states have call predecessors, (188), 27 states have return successors, (282), 172 states have call predecessors, (282), 188 states have call successors, (282) [2021-11-07 01:02:44,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2552 states to 2552 states and 3365 transitions. [2021-11-07 01:02:44,571 INFO L78 Accepts]: Start accepts. Automaton has 2552 states and 3365 transitions. Word has length 61 [2021-11-07 01:02:44,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:02:44,572 INFO L470 AbstractCegarLoop]: Abstraction has 2552 states and 3365 transitions. [2021-11-07 01:02:44,572 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 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 01:02:44,572 INFO L276 IsEmpty]: Start isEmpty. Operand 2552 states and 3365 transitions. [2021-11-07 01:02:44,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-11-07 01:02:44,574 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:02:44,574 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] [2021-11-07 01:02:44,613 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2021-11-07 01:02:44,800 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:02:44,800 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [change_modeErr0ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr1ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr2ASSERT_VIOLATIONERROR_FUNCTION (and 107 more)] === [2021-11-07 01:02:44,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:02:44,801 INFO L85 PathProgramCache]: Analyzing trace with hash -1123164159, now seen corresponding path program 1 times [2021-11-07 01:02:44,803 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:02:44,803 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2081367359] [2021-11-07 01:02:44,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:02:44,803 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:02:44,803 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:02:44,805 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:02:44,845 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2021-11-07 01:02:47,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:02:47,535 INFO L263 TraceCheckSpWp]: Trace formula consists of 1072 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 01:02:47,537 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:02:47,895 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 01:02:47,895 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:02:48,264 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 01:02:48,267 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:02:48,268 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2081367359] [2021-11-07 01:02:48,268 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2081367359] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:02:48,268 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:02:48,269 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-07 01:02:48,269 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151799791] [2021-11-07 01:02:48,270 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 01:02:48,270 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:02:48,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 01:02:48,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 01:02:48,271 INFO L87 Difference]: Start difference. First operand 2552 states and 3365 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 2 states have internal predecessors, (62), 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 01:02:49,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:02:49,520 INFO L93 Difference]: Finished difference Result 7416 states and 10663 transitions. [2021-11-07 01:02:49,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 01:02:49,522 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 2 states have internal predecessors, (62), 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 62 [2021-11-07 01:02:49,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:02:49,548 INFO L225 Difference]: With dead ends: 7416 [2021-11-07 01:02:49,549 INFO L226 Difference]: Without dead ends: 4958 [2021-11-07 01:02:49,574 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 01:02:49,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4958 states. [2021-11-07 01:02:50,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4958 to 4660. [2021-11-07 01:02:50,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4660 states, 4150 states have (on average 1.2973493975903614) internal successors, (5384), 4271 states have internal predecessors, (5384), 376 states have call successors, (376), 54 states have call predecessors, (376), 54 states have return successors, (846), 344 states have call predecessors, (846), 376 states have call successors, (846) [2021-11-07 01:02:50,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4660 states to 4660 states and 6606 transitions. [2021-11-07 01:02:50,893 INFO L78 Accepts]: Start accepts. Automaton has 4660 states and 6606 transitions. Word has length 62 [2021-11-07 01:02:50,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:02:50,894 INFO L470 AbstractCegarLoop]: Abstraction has 4660 states and 6606 transitions. [2021-11-07 01:02:50,894 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 2 states have internal predecessors, (62), 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 01:02:50,894 INFO L276 IsEmpty]: Start isEmpty. Operand 4660 states and 6606 transitions. [2021-11-07 01:02:50,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-11-07 01:02:50,895 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:02:50,895 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] [2021-11-07 01:02:50,944 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2021-11-07 01:02:51,120 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:02:51,121 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [change_modeErr0ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr1ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr2ASSERT_VIOLATIONERROR_FUNCTION (and 107 more)] === [2021-11-07 01:02:51,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:02:51,121 INFO L85 PathProgramCache]: Analyzing trace with hash -864998721, now seen corresponding path program 1 times [2021-11-07 01:02:51,123 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:02:51,123 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [711899263] [2021-11-07 01:02:51,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:02:51,123 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:02:51,123 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:02:51,126 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:02:51,174 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2021-11-07 01:02:53,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:02:53,525 INFO L263 TraceCheckSpWp]: Trace formula consists of 1072 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 01:02:53,527 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:02:53,753 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 01:02:53,753 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:02:53,979 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 01:02:53,979 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:02:53,979 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [711899263] [2021-11-07 01:02:53,980 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [711899263] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:02:53,980 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:02:53,980 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-07 01:02:53,980 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512160234] [2021-11-07 01:02:53,980 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-07 01:02:53,980 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:02:53,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-07 01:02:53,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-07 01:02:53,982 INFO L87 Difference]: Start difference. First operand 4660 states and 6606 transitions. Second operand has 8 states, 8 states have (on average 9.125) internal successors, (73), 8 states have internal predecessors, (73), 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 01:02:58,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:02:58,539 INFO L93 Difference]: Finished difference Result 10688 states and 15484 transitions. [2021-11-07 01:02:58,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 01:02:58,540 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.125) internal successors, (73), 8 states have internal predecessors, (73), 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 62 [2021-11-07 01:02:58,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:02:58,570 INFO L225 Difference]: With dead ends: 10688 [2021-11-07 01:02:58,571 INFO L226 Difference]: Without dead ends: 6246 [2021-11-07 01:02:58,614 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-11-07 01:02:58,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6246 states. [2021-11-07 01:02:59,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6246 to 2548. [2021-11-07 01:02:59,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2548 states, 2255 states have (on average 1.2798226164079822) internal successors, (2886), 2353 states have internal predecessors, (2886), 188 states have call successors, (188), 27 states have call predecessors, (188), 27 states have return successors, (282), 172 states have call predecessors, (282), 188 states have call successors, (282) [2021-11-07 01:02:59,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2548 states to 2548 states and 3356 transitions. [2021-11-07 01:02:59,426 INFO L78 Accepts]: Start accepts. Automaton has 2548 states and 3356 transitions. Word has length 62 [2021-11-07 01:02:59,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:02:59,427 INFO L470 AbstractCegarLoop]: Abstraction has 2548 states and 3356 transitions. [2021-11-07 01:02:59,427 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.125) internal successors, (73), 8 states have internal predecessors, (73), 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 01:02:59,427 INFO L276 IsEmpty]: Start isEmpty. Operand 2548 states and 3356 transitions. [2021-11-07 01:02:59,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-07 01:02:59,428 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:02:59,428 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] [2021-11-07 01:02:59,452 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2021-11-07 01:02:59,632 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:02:59,632 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION === [change_modeErr0ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr1ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr2ASSERT_VIOLATIONERROR_FUNCTION (and 107 more)] === [2021-11-07 01:02:59,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:02:59,633 INFO L85 PathProgramCache]: Analyzing trace with hash 483273258, now seen corresponding path program 1 times [2021-11-07 01:02:59,634 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:02:59,634 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [347357904] [2021-11-07 01:02:59,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:02:59,634 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:02:59,634 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:02:59,635 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:02:59,635 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2021-11-07 01:03:01,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:03:01,197 INFO L263 TraceCheckSpWp]: Trace formula consists of 855 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 01:03:01,200 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:03:01,618 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 01:03:01,618 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:03:02,013 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 01:03:02,013 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:03:02,013 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [347357904] [2021-11-07 01:03:02,013 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [347357904] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:03:02,013 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:03:02,014 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 01:03:02,014 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243956851] [2021-11-07 01:03:02,014 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:03:02,014 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:03:02,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:03:02,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:03:02,015 INFO L87 Difference]: Start difference. First operand 2548 states and 3356 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 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 01:03:02,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:03:02,613 INFO L93 Difference]: Finished difference Result 2548 states and 3356 transitions. [2021-11-07 01:03:02,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 01:03:02,614 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 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 63 [2021-11-07 01:03:02,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:03:02,623 INFO L225 Difference]: With dead ends: 2548 [2021-11-07 01:03:02,623 INFO L226 Difference]: Without dead ends: 2544 [2021-11-07 01:03:02,625 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-07 01:03:02,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2544 states. [2021-11-07 01:03:03,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2544 to 2544. [2021-11-07 01:03:03,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2544 states, 2253 states have (on average 1.2791833111407014) internal successors, (2882), 2349 states have internal predecessors, (2882), 188 states have call successors, (188), 27 states have call predecessors, (188), 27 states have return successors, (282), 172 states have call predecessors, (282), 188 states have call successors, (282) [2021-11-07 01:03:03,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2544 states to 2544 states and 3352 transitions. [2021-11-07 01:03:03,401 INFO L78 Accepts]: Start accepts. Automaton has 2544 states and 3352 transitions. Word has length 63 [2021-11-07 01:03:03,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:03:03,401 INFO L470 AbstractCegarLoop]: Abstraction has 2544 states and 3352 transitions. [2021-11-07 01:03:03,401 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 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 01:03:03,402 INFO L276 IsEmpty]: Start isEmpty. Operand 2544 states and 3352 transitions. [2021-11-07 01:03:03,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-11-07 01:03:03,403 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:03:03,403 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] [2021-11-07 01:03:03,433 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (24)] Ended with exit code 0 [2021-11-07 01:03:03,616 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:03:03,616 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [change_modeErr0ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr1ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr2ASSERT_VIOLATIONERROR_FUNCTION (and 107 more)] === [2021-11-07 01:03:03,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:03:03,617 INFO L85 PathProgramCache]: Analyzing trace with hash 1960057026, now seen corresponding path program 1 times [2021-11-07 01:03:03,618 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:03:03,618 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [478885705] [2021-11-07 01:03:03,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:03:03,619 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:03:03,619 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:03:03,620 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:03:03,621 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2021-11-07 01:03:05,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:03:05,946 INFO L263 TraceCheckSpWp]: Trace formula consists of 1075 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 01:03:05,948 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:03:06,204 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 01:03:06,204 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:03:06,451 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 01:03:06,452 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:03:06,452 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [478885705] [2021-11-07 01:03:06,452 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [478885705] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:03:06,452 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:03:06,453 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-07 01:03:06,453 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127401677] [2021-11-07 01:03:06,453 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-07 01:03:06,454 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:03:06,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-07 01:03:06,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-07 01:03:06,455 INFO L87 Difference]: Start difference. First operand 2544 states and 3352 transitions. Second operand has 8 states, 8 states have (on average 9.625) internal successors, (77), 8 states have internal predecessors, (77), 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 01:03:10,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:03:10,897 INFO L93 Difference]: Finished difference Result 6234 states and 8558 transitions. [2021-11-07 01:03:10,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 01:03:10,898 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 8 states have internal predecessors, (77), 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 64 [2021-11-07 01:03:10,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:03:10,924 INFO L225 Difference]: With dead ends: 6234 [2021-11-07 01:03:10,924 INFO L226 Difference]: Without dead ends: 6230 [2021-11-07 01:03:10,927 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-11-07 01:03:10,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6230 states. [2021-11-07 01:03:11,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6230 to 2540. [2021-11-07 01:03:11,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2540 states, 2251 states have (on average 1.2785428698356287) internal successors, (2878), 2345 states have internal predecessors, (2878), 188 states have call successors, (188), 27 states have call predecessors, (188), 27 states have return successors, (282), 172 states have call predecessors, (282), 188 states have call successors, (282) [2021-11-07 01:03:11,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2540 states to 2540 states and 3348 transitions. [2021-11-07 01:03:11,834 INFO L78 Accepts]: Start accepts. Automaton has 2540 states and 3348 transitions. Word has length 64 [2021-11-07 01:03:11,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:03:11,834 INFO L470 AbstractCegarLoop]: Abstraction has 2540 states and 3348 transitions. [2021-11-07 01:03:11,835 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 8 states have internal predecessors, (77), 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 01:03:11,835 INFO L276 IsEmpty]: Start isEmpty. Operand 2540 states and 3348 transitions. [2021-11-07 01:03:11,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-11-07 01:03:11,836 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:03:11,836 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] [2021-11-07 01:03:11,865 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2021-11-07 01:03:12,040 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:03:12,041 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [change_modeErr0ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr1ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr2ASSERT_VIOLATIONERROR_FUNCTION (and 107 more)] === [2021-11-07 01:03:12,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:03:12,041 INFO L85 PathProgramCache]: Analyzing trace with hash -662638176, now seen corresponding path program 1 times [2021-11-07 01:03:12,042 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:03:12,042 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [238759639] [2021-11-07 01:03:12,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:03:12,042 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:03:12,042 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:03:12,044 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:03:12,045 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2021-11-07 01:03:14,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:03:14,419 INFO L263 TraceCheckSpWp]: Trace formula consists of 1079 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 01:03:14,421 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:03:14,662 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 01:03:14,662 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:03:14,858 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 01:03:14,859 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:03:14,859 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [238759639] [2021-11-07 01:03:14,859 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [238759639] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:03:14,859 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:03:14,859 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 01:03:14,859 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574620137] [2021-11-07 01:03:14,860 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:03:14,860 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:03:14,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:03:14,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:03:14,860 INFO L87 Difference]: Start difference. First operand 2540 states and 3348 transitions. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 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 01:03:15,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:03:15,694 INFO L93 Difference]: Finished difference Result 4785 states and 6335 transitions. [2021-11-07 01:03:15,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 01:03:15,694 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 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 64 [2021-11-07 01:03:15,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:03:15,704 INFO L225 Difference]: With dead ends: 4785 [2021-11-07 01:03:15,705 INFO L226 Difference]: Without dead ends: 2536 [2021-11-07 01:03:15,717 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 124 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 01:03:15,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2536 states. [2021-11-07 01:03:16,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2536 to 2536. [2021-11-07 01:03:16,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2536 states, 2248 states have (on average 1.277135231316726) internal successors, (2871), 2341 states have internal predecessors, (2871), 188 states have call successors, (188), 27 states have call predecessors, (188), 27 states have return successors, (282), 172 states have call predecessors, (282), 188 states have call successors, (282) [2021-11-07 01:03:16,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2536 states to 2536 states and 3341 transitions. [2021-11-07 01:03:16,428 INFO L78 Accepts]: Start accepts. Automaton has 2536 states and 3341 transitions. Word has length 64 [2021-11-07 01:03:16,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:03:16,429 INFO L470 AbstractCegarLoop]: Abstraction has 2536 states and 3341 transitions. [2021-11-07 01:03:16,429 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 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 01:03:16,429 INFO L276 IsEmpty]: Start isEmpty. Operand 2536 states and 3341 transitions. [2021-11-07 01:03:16,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-11-07 01:03:16,430 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:03:16,430 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] [2021-11-07 01:03:16,459 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (26)] Forceful destruction successful, exit code 0 [2021-11-07 01:03:16,630 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:03:16,630 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION === [change_modeErr0ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr1ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr2ASSERT_VIOLATIONERROR_FUNCTION (and 107 more)] === [2021-11-07 01:03:16,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:03:16,631 INFO L85 PathProgramCache]: Analyzing trace with hash 569331982, now seen corresponding path program 1 times [2021-11-07 01:03:16,633 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:03:16,633 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [597543962] [2021-11-07 01:03:16,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:03:16,633 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:03:16,633 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:03:16,634 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:03:16,637 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2021-11-07 01:03:18,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:03:18,593 INFO L263 TraceCheckSpWp]: Trace formula consists of 858 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 01:03:18,594 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:03:19,078 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 01:03:19,078 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:03:19,489 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 01:03:19,489 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:03:19,489 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [597543962] [2021-11-07 01:03:19,489 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [597543962] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:03:19,489 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:03:19,490 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 01:03:19,490 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264891166] [2021-11-07 01:03:19,490 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:03:19,491 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:03:19,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:03:19,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:03:19,492 INFO L87 Difference]: Start difference. First operand 2536 states and 3341 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 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 01:03:20,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:03:20,087 INFO L93 Difference]: Finished difference Result 2536 states and 3341 transitions. [2021-11-07 01:03:20,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 01:03:20,087 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 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 65 [2021-11-07 01:03:20,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:03:20,095 INFO L225 Difference]: With dead ends: 2536 [2021-11-07 01:03:20,096 INFO L226 Difference]: Without dead ends: 2532 [2021-11-07 01:03:20,098 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-07 01:03:20,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2532 states. [2021-11-07 01:03:21,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2532 to 2532. [2021-11-07 01:03:21,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2532 states, 2246 states have (on average 1.2764915405164736) internal successors, (2867), 2337 states have internal predecessors, (2867), 188 states have call successors, (188), 27 states have call predecessors, (188), 27 states have return successors, (282), 172 states have call predecessors, (282), 188 states have call successors, (282) [2021-11-07 01:03:21,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2532 states to 2532 states and 3337 transitions. [2021-11-07 01:03:21,105 INFO L78 Accepts]: Start accepts. Automaton has 2532 states and 3337 transitions. Word has length 65 [2021-11-07 01:03:21,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:03:21,106 INFO L470 AbstractCegarLoop]: Abstraction has 2532 states and 3337 transitions. [2021-11-07 01:03:21,106 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 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 01:03:21,106 INFO L276 IsEmpty]: Start isEmpty. Operand 2532 states and 3337 transitions. [2021-11-07 01:03:21,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-07 01:03:21,107 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:03:21,108 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] [2021-11-07 01:03:21,145 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (27)] Forceful destruction successful, exit code 0 [2021-11-07 01:03:21,320 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:03:21,320 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [change_modeErr0ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr1ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr2ASSERT_VIOLATIONERROR_FUNCTION (and 107 more)] === [2021-11-07 01:03:21,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:03:21,321 INFO L85 PathProgramCache]: Analyzing trace with hash -211120498, now seen corresponding path program 1 times [2021-11-07 01:03:21,322 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:03:21,322 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1219183415] [2021-11-07 01:03:21,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:03:21,322 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:03:21,323 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:03:21,323 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:03:21,328 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2021-11-07 01:03:23,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:03:23,901 INFO L263 TraceCheckSpWp]: Trace formula consists of 1107 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-07 01:03:23,904 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:03:24,156 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 01:03:24,156 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:03:24,311 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 01:03:24,311 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:03:24,311 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1219183415] [2021-11-07 01:03:24,312 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1219183415] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:03:24,312 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:03:24,312 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-07 01:03:24,312 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426508892] [2021-11-07 01:03:24,312 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:03:24,313 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:03:24,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:03:24,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:03:24,313 INFO L87 Difference]: Start difference. First operand 2532 states and 3337 transitions. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 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 01:03:25,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:03:25,863 INFO L93 Difference]: Finished difference Result 6317 states and 8364 transitions. [2021-11-07 01:03:25,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 01:03:25,865 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 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 66 [2021-11-07 01:03:25,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:03:25,882 INFO L225 Difference]: With dead ends: 6317 [2021-11-07 01:03:25,882 INFO L226 Difference]: Without dead ends: 3872 [2021-11-07 01:03:25,898 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:03:25,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3872 states. [2021-11-07 01:03:27,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3872 to 2532. [2021-11-07 01:03:27,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2532 states, 2246 states have (on average 1.2756010685663401) internal successors, (2865), 2337 states have internal predecessors, (2865), 188 states have call successors, (188), 27 states have call predecessors, (188), 27 states have return successors, (282), 172 states have call predecessors, (282), 188 states have call successors, (282) [2021-11-07 01:03:27,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2532 states to 2532 states and 3335 transitions. [2021-11-07 01:03:27,181 INFO L78 Accepts]: Start accepts. Automaton has 2532 states and 3335 transitions. Word has length 66 [2021-11-07 01:03:27,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:03:27,182 INFO L470 AbstractCegarLoop]: Abstraction has 2532 states and 3335 transitions. [2021-11-07 01:03:27,182 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 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 01:03:27,182 INFO L276 IsEmpty]: Start isEmpty. Operand 2532 states and 3335 transitions. [2021-11-07 01:03:27,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-07 01:03:27,183 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:03:27,184 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] [2021-11-07 01:03:27,235 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (28)] Forceful destruction successful, exit code 0 [2021-11-07 01:03:27,398 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:03:27,399 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [change_modeErr0ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr1ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr2ASSERT_VIOLATIONERROR_FUNCTION (and 107 more)] === [2021-11-07 01:03:27,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:03:27,399 INFO L85 PathProgramCache]: Analyzing trace with hash 1563886864, now seen corresponding path program 1 times [2021-11-07 01:03:27,401 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:03:27,401 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [929935907] [2021-11-07 01:03:27,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:03:27,402 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:03:27,402 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:03:27,404 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:03:27,414 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2021-11-07 01:03:30,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:03:30,209 INFO L263 TraceCheckSpWp]: Trace formula consists of 1107 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 01:03:30,211 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:03:30,635 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 01:03:30,636 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:03:31,038 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 01:03:31,038 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:03:31,038 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [929935907] [2021-11-07 01:03:31,038 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [929935907] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:03:31,038 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:03:31,038 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-07 01:03:31,039 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699591179] [2021-11-07 01:03:31,039 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:03:31,039 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:03:31,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:03:31,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:03:31,040 INFO L87 Difference]: Start difference. First operand 2532 states and 3335 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 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 01:03:32,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:03:32,773 INFO L93 Difference]: Finished difference Result 6250 states and 8294 transitions. [2021-11-07 01:03:32,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 01:03:32,774 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 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 66 [2021-11-07 01:03:32,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:03:32,790 INFO L225 Difference]: With dead ends: 6250 [2021-11-07 01:03:32,790 INFO L226 Difference]: Without dead ends: 3811 [2021-11-07 01:03:32,803 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-07 01:03:32,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3811 states. [2021-11-07 01:03:33,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3811 to 2532. [2021-11-07 01:03:33,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2532 states, 2246 states have (on average 1.2747105966162067) internal successors, (2863), 2337 states have internal predecessors, (2863), 188 states have call successors, (188), 27 states have call predecessors, (188), 27 states have return successors, (282), 172 states have call predecessors, (282), 188 states have call successors, (282) [2021-11-07 01:03:33,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2532 states to 2532 states and 3333 transitions. [2021-11-07 01:03:33,728 INFO L78 Accepts]: Start accepts. Automaton has 2532 states and 3333 transitions. Word has length 66 [2021-11-07 01:03:33,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:03:33,728 INFO L470 AbstractCegarLoop]: Abstraction has 2532 states and 3333 transitions. [2021-11-07 01:03:33,729 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 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 01:03:33,729 INFO L276 IsEmpty]: Start isEmpty. Operand 2532 states and 3333 transitions. [2021-11-07 01:03:33,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-07 01:03:33,729 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:03:33,730 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] [2021-11-07 01:03:33,777 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (29)] Ended with exit code 0 [2021-11-07 01:03:33,956 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:03:33,956 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [change_modeErr0ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr1ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr2ASSERT_VIOLATIONERROR_FUNCTION (and 107 more)] === [2021-11-07 01:03:33,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:03:33,957 INFO L85 PathProgramCache]: Analyzing trace with hash 1563946446, now seen corresponding path program 1 times [2021-11-07 01:03:33,958 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:03:33,958 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2112271996] [2021-11-07 01:03:33,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:03:33,959 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:03:33,959 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:03:33,960 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:03:33,964 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2021-11-07 01:03:36,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:03:36,561 INFO L263 TraceCheckSpWp]: Trace formula consists of 1107 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 01:03:36,563 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:03:36,734 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 01:03:36,734 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:03:36,890 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 01:03:36,891 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:03:36,891 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2112271996] [2021-11-07 01:03:36,891 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2112271996] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:03:36,891 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:03:36,891 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-07 01:03:36,891 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627181797] [2021-11-07 01:03:36,891 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 01:03:36,892 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:03:36,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 01:03:36,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-07 01:03:36,892 INFO L87 Difference]: Start difference. First operand 2532 states and 3333 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 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 01:03:38,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:03:38,283 INFO L93 Difference]: Finished difference Result 3811 states and 5059 transitions. [2021-11-07 01:03:38,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 01:03:38,284 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 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 66 [2021-11-07 01:03:38,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:03:38,293 INFO L225 Difference]: With dead ends: 3811 [2021-11-07 01:03:38,293 INFO L226 Difference]: Without dead ends: 3809 [2021-11-07 01:03:38,294 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-07 01:03:38,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3809 states. [2021-11-07 01:03:39,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3809 to 2530. [2021-11-07 01:03:39,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2530 states, 2245 states have (on average 1.2739420935412027) internal successors, (2860), 2335 states have internal predecessors, (2860), 188 states have call successors, (188), 27 states have call predecessors, (188), 27 states have return successors, (282), 172 states have call predecessors, (282), 188 states have call successors, (282) [2021-11-07 01:03:39,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2530 states to 2530 states and 3330 transitions. [2021-11-07 01:03:39,087 INFO L78 Accepts]: Start accepts. Automaton has 2530 states and 3330 transitions. Word has length 66 [2021-11-07 01:03:39,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:03:39,087 INFO L470 AbstractCegarLoop]: Abstraction has 2530 states and 3330 transitions. [2021-11-07 01:03:39,087 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 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 01:03:39,087 INFO L276 IsEmpty]: Start isEmpty. Operand 2530 states and 3330 transitions. [2021-11-07 01:03:39,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-11-07 01:03:39,088 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:03:39,088 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] [2021-11-07 01:03:39,117 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (30)] Forceful destruction successful, exit code 0 [2021-11-07 01:03:39,291 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:03:39,291 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION === [change_modeErr0ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr1ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr2ASSERT_VIOLATIONERROR_FUNCTION (and 107 more)] === [2021-11-07 01:03:39,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:03:39,291 INFO L85 PathProgramCache]: Analyzing trace with hash 1667387474, now seen corresponding path program 1 times [2021-11-07 01:03:39,293 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:03:39,293 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [987152442] [2021-11-07 01:03:39,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:03:39,293 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:03:39,293 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:03:39,294 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:03:39,295 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2021-11-07 01:03:41,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:03:41,240 INFO L263 TraceCheckSpWp]: Trace formula consists of 861 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 01:03:41,241 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:03:41,686 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 01:03:41,686 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:03:42,169 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 01:03:42,169 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:03:42,169 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [987152442] [2021-11-07 01:03:42,169 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [987152442] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:03:42,170 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:03:42,170 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 01:03:42,170 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182401257] [2021-11-07 01:03:42,170 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:03:42,170 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:03:42,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:03:42,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:03:42,171 INFO L87 Difference]: Start difference. First operand 2530 states and 3330 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 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 01:03:42,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:03:42,828 INFO L93 Difference]: Finished difference Result 2530 states and 3330 transitions. [2021-11-07 01:03:42,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 01:03:42,828 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 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 67 [2021-11-07 01:03:42,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:03:42,833 INFO L225 Difference]: With dead ends: 2530 [2021-11-07 01:03:42,833 INFO L226 Difference]: Without dead ends: 2526 [2021-11-07 01:03:42,834 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-07 01:03:42,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2526 states. [2021-11-07 01:03:43,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2526 to 2526. [2021-11-07 01:03:43,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2526 states, 2243 states have (on average 1.273294694605439) internal successors, (2856), 2331 states have internal predecessors, (2856), 188 states have call successors, (188), 27 states have call predecessors, (188), 27 states have return successors, (282), 172 states have call predecessors, (282), 188 states have call successors, (282) [2021-11-07 01:03:43,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2526 states to 2526 states and 3326 transitions. [2021-11-07 01:03:43,653 INFO L78 Accepts]: Start accepts. Automaton has 2526 states and 3326 transitions. Word has length 67 [2021-11-07 01:03:43,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:03:43,653 INFO L470 AbstractCegarLoop]: Abstraction has 2526 states and 3326 transitions. [2021-11-07 01:03:43,653 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 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 01:03:43,654 INFO L276 IsEmpty]: Start isEmpty. Operand 2526 states and 3326 transitions. [2021-11-07 01:03:43,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-11-07 01:03:43,654 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:03:43,654 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] [2021-11-07 01:03:43,681 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (31)] Forceful destruction successful, exit code 0 [2021-11-07 01:03:43,855 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:03:43,855 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [change_modeErr0ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr1ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr2ASSERT_VIOLATIONERROR_FUNCTION (and 107 more)] === [2021-11-07 01:03:43,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:03:43,855 INFO L85 PathProgramCache]: Analyzing trace with hash -657800696, now seen corresponding path program 1 times [2021-11-07 01:03:43,857 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:03:43,857 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [310719781] [2021-11-07 01:03:43,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:03:43,857 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:03:43,857 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:03:43,858 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:03:43,859 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (32)] Waiting until timeout for monitored process [2021-11-07 01:03:46,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:03:46,493 INFO L263 TraceCheckSpWp]: Trace formula consists of 1083 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 01:03:46,495 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:03:46,766 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 01:03:46,766 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:03:47,000 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 01:03:47,001 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:03:47,001 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [310719781] [2021-11-07 01:03:47,001 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [310719781] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:03:47,001 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:03:47,001 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 01:03:47,001 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527273069] [2021-11-07 01:03:47,002 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:03:47,002 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:03:47,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:03:47,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:03:47,002 INFO L87 Difference]: Start difference. First operand 2526 states and 3326 transitions. Second operand has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 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 01:03:48,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:03:48,511 INFO L93 Difference]: Finished difference Result 4757 states and 6296 transitions. [2021-11-07 01:03:48,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 01:03:48,512 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 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 67 [2021-11-07 01:03:48,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:03:48,518 INFO L225 Difference]: With dead ends: 4757 [2021-11-07 01:03:48,518 INFO L226 Difference]: Without dead ends: 2526 [2021-11-07 01:03:48,526 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 130 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 01:03:48,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2526 states. [2021-11-07 01:03:49,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2526 to 2522. [2021-11-07 01:03:49,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2522 states, 2240 states have (on average 1.271875) internal successors, (2849), 2327 states have internal predecessors, (2849), 188 states have call successors, (188), 27 states have call predecessors, (188), 27 states have return successors, (282), 172 states have call predecessors, (282), 188 states have call successors, (282) [2021-11-07 01:03:49,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2522 states to 2522 states and 3319 transitions. [2021-11-07 01:03:49,212 INFO L78 Accepts]: Start accepts. Automaton has 2522 states and 3319 transitions. Word has length 67 [2021-11-07 01:03:49,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:03:49,212 INFO L470 AbstractCegarLoop]: Abstraction has 2522 states and 3319 transitions. [2021-11-07 01:03:49,213 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 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 01:03:49,213 INFO L276 IsEmpty]: Start isEmpty. Operand 2522 states and 3319 transitions. [2021-11-07 01:03:49,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-11-07 01:03:49,213 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:03:49,214 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] [2021-11-07 01:03:49,250 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (32)] Ended with exit code 0 [2021-11-07 01:03:49,429 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:03:49,429 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION === [change_modeErr0ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr1ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr2ASSERT_VIOLATIONERROR_FUNCTION (and 107 more)] === [2021-11-07 01:03:49,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:03:49,429 INFO L85 PathProgramCache]: Analyzing trace with hash 336760822, now seen corresponding path program 1 times [2021-11-07 01:03:49,430 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:03:49,431 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1414865865] [2021-11-07 01:03:49,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:03:49,431 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:03:49,431 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:03:49,432 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:03:49,435 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (33)] Waiting until timeout for monitored process [2021-11-07 01:03:51,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:03:51,559 INFO L263 TraceCheckSpWp]: Trace formula consists of 864 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 01:03:51,561 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:03:52,084 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 01:03:52,084 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:03:52,558 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 01:03:52,559 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:03:52,559 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1414865865] [2021-11-07 01:03:52,559 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1414865865] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:03:52,560 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:03:52,560 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 01:03:52,560 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71860134] [2021-11-07 01:03:52,560 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:03:52,560 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:03:52,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:03:52,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:03:52,561 INFO L87 Difference]: Start difference. First operand 2522 states and 3319 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 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 01:03:53,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:03:53,279 INFO L93 Difference]: Finished difference Result 2522 states and 3319 transitions. [2021-11-07 01:03:53,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 01:03:53,280 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 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 69 [2021-11-07 01:03:53,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:03:53,286 INFO L225 Difference]: With dead ends: 2522 [2021-11-07 01:03:53,286 INFO L226 Difference]: Without dead ends: 2518 [2021-11-07 01:03:53,288 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-07 01:03:53,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2518 states. [2021-11-07 01:03:54,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2518 to 2518. [2021-11-07 01:03:54,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2518 states, 2238 states have (on average 1.2712243074173368) internal successors, (2845), 2323 states have internal predecessors, (2845), 188 states have call successors, (188), 27 states have call predecessors, (188), 27 states have return successors, (282), 172 states have call predecessors, (282), 188 states have call successors, (282) [2021-11-07 01:03:54,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2518 states to 2518 states and 3315 transitions. [2021-11-07 01:03:54,137 INFO L78 Accepts]: Start accepts. Automaton has 2518 states and 3315 transitions. Word has length 69 [2021-11-07 01:03:54,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:03:54,138 INFO L470 AbstractCegarLoop]: Abstraction has 2518 states and 3315 transitions. [2021-11-07 01:03:54,138 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 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 01:03:54,138 INFO L276 IsEmpty]: Start isEmpty. Operand 2518 states and 3315 transitions. [2021-11-07 01:03:54,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-11-07 01:03:54,139 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:03:54,140 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] [2021-11-07 01:03:54,164 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (33)] Forceful destruction successful, exit code 0 [2021-11-07 01:03:54,344 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:03:54,348 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [change_modeErr0ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr1ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr2ASSERT_VIOLATIONERROR_FUNCTION (and 107 more)] === [2021-11-07 01:03:54,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:03:54,349 INFO L85 PathProgramCache]: Analyzing trace with hash -271222284, now seen corresponding path program 1 times [2021-11-07 01:03:54,351 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:03:54,351 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [758318661] [2021-11-07 01:03:54,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:03:54,352 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:03:54,352 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:03:54,353 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:03:54,354 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (34)] Waiting until timeout for monitored process [2021-11-07 01:03:57,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:03:57,119 INFO L263 TraceCheckSpWp]: Trace formula consists of 1113 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 01:03:57,121 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:03:57,548 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 01:03:57,548 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:03:57,986 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 01:03:57,987 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:03:57,987 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [758318661] [2021-11-07 01:03:57,987 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [758318661] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:03:57,987 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:03:57,987 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-11-07 01:03:57,987 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652558748] [2021-11-07 01:03:57,988 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:03:57,988 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:03:57,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:03:57,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:03:57,989 INFO L87 Difference]: Start difference. First operand 2518 states and 3315 transitions. Second operand has 4 states, 4 states have (on average 34.0) internal successors, (136), 3 states have internal predecessors, (136), 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 01:03:58,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:03:58,716 INFO L93 Difference]: Finished difference Result 4915 states and 6777 transitions. [2021-11-07 01:03:58,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 01:03:58,717 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.0) internal successors, (136), 3 states have internal predecessors, (136), 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 69 [2021-11-07 01:03:58,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:03:58,725 INFO L225 Difference]: With dead ends: 4915 [2021-11-07 01:03:58,725 INFO L226 Difference]: Without dead ends: 2498 [2021-11-07 01:03:58,741 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 134 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 01:03:58,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2498 states. [2021-11-07 01:03:59,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2498 to 2498. [2021-11-07 01:03:59,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2498 states, 2223 states have (on average 1.2640575798470535) internal successors, (2810), 2303 states have internal predecessors, (2810), 188 states have call successors, (188), 27 states have call predecessors, (188), 27 states have return successors, (282), 172 states have call predecessors, (282), 188 states have call successors, (282) [2021-11-07 01:03:59,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2498 states to 2498 states and 3280 transitions. [2021-11-07 01:03:59,514 INFO L78 Accepts]: Start accepts. Automaton has 2498 states and 3280 transitions. Word has length 69 [2021-11-07 01:03:59,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:03:59,514 INFO L470 AbstractCegarLoop]: Abstraction has 2498 states and 3280 transitions. [2021-11-07 01:03:59,514 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.0) internal successors, (136), 3 states have internal predecessors, (136), 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 01:03:59,514 INFO L276 IsEmpty]: Start isEmpty. Operand 2498 states and 3280 transitions. [2021-11-07 01:03:59,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-11-07 01:03:59,515 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:03:59,515 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] [2021-11-07 01:03:59,548 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (34)] Ended with exit code 0 [2021-11-07 01:03:59,716 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:03:59,716 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION === [change_modeErr0ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr1ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr2ASSERT_VIOLATIONERROR_FUNCTION (and 107 more)] === [2021-11-07 01:03:59,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:03:59,716 INFO L85 PathProgramCache]: Analyzing trace with hash 1504802810, now seen corresponding path program 1 times [2021-11-07 01:03:59,717 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:03:59,718 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [626321183] [2021-11-07 01:03:59,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:03:59,718 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:03:59,718 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:03:59,719 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:03:59,720 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (35)] Waiting until timeout for monitored process [2021-11-07 01:04:01,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:04:01,907 INFO L263 TraceCheckSpWp]: Trace formula consists of 867 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 01:04:01,909 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:04:02,404 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 01:04:02,404 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:04:02,873 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 01:04:02,873 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:04:02,873 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [626321183] [2021-11-07 01:04:02,873 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [626321183] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:04:02,873 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:04:02,873 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 01:04:02,873 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181820642] [2021-11-07 01:04:02,874 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:04:02,874 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:04:02,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:04:02,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:04:02,874 INFO L87 Difference]: Start difference. First operand 2498 states and 3280 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 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 01:04:04,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:04:04,262 INFO L93 Difference]: Finished difference Result 4821 states and 6648 transitions. [2021-11-07 01:04:04,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 01:04:04,262 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 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 71 [2021-11-07 01:04:04,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:04:04,278 INFO L225 Difference]: With dead ends: 4821 [2021-11-07 01:04:04,279 INFO L226 Difference]: Without dead ends: 4710 [2021-11-07 01:04:04,281 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-07 01:04:04,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4710 states. [2021-11-07 01:04:05,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4710 to 4594. [2021-11-07 01:04:05,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4594 states, 4106 states have (on average 1.2795908426692646) internal successors, (5254), 4205 states have internal predecessors, (5254), 374 states have call successors, (374), 54 states have call predecessors, (374), 54 states have return successors, (842), 344 states have call predecessors, (842), 374 states have call successors, (842) [2021-11-07 01:04:05,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4594 states to 4594 states and 6470 transitions. [2021-11-07 01:04:05,817 INFO L78 Accepts]: Start accepts. Automaton has 4594 states and 6470 transitions. Word has length 71 [2021-11-07 01:04:05,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:04:05,817 INFO L470 AbstractCegarLoop]: Abstraction has 4594 states and 6470 transitions. [2021-11-07 01:04:05,817 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 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 01:04:05,817 INFO L276 IsEmpty]: Start isEmpty. Operand 4594 states and 6470 transitions. [2021-11-07 01:04:05,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-11-07 01:04:05,819 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:04:05,819 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] [2021-11-07 01:04:05,861 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (35)] Forceful destruction successful, exit code 0 [2021-11-07 01:04:06,032 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:04:06,032 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [change_modeErr0ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr1ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr2ASSERT_VIOLATIONERROR_FUNCTION (and 107 more)] === [2021-11-07 01:04:06,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:04:06,033 INFO L85 PathProgramCache]: Analyzing trace with hash 1229663212, now seen corresponding path program 1 times [2021-11-07 01:04:06,034 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:04:06,034 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1720957464] [2021-11-07 01:04:06,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:04:06,035 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:04:06,035 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:04:06,035 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:04:06,036 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (36)] Waiting until timeout for monitored process [2021-11-07 01:04:09,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:04:09,181 INFO L263 TraceCheckSpWp]: Trace formula consists of 1217 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-07 01:04:09,184 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:04:09,688 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 01:04:09,688 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:04:10,339 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 01:04:10,339 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:04:10,340 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1720957464] [2021-11-07 01:04:10,340 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1720957464] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:04:10,340 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:04:10,340 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 14 [2021-11-07 01:04:10,340 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123464415] [2021-11-07 01:04:10,342 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-07 01:04:10,342 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:04:10,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-07 01:04:10,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2021-11-07 01:04:10,343 INFO L87 Difference]: Start difference. First operand 4594 states and 6470 transitions. Second operand has 14 states, 14 states have (on average 6.785714285714286) internal successors, (95), 14 states have internal predecessors, (95), 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 01:04:16,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:04:16,174 INFO L93 Difference]: Finished difference Result 13751 states and 19639 transitions. [2021-11-07 01:04:16,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-07 01:04:16,176 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 6.785714285714286) internal successors, (95), 14 states have internal predecessors, (95), 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 88 [2021-11-07 01:04:16,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:04:16,209 INFO L225 Difference]: With dead ends: 13751 [2021-11-07 01:04:16,209 INFO L226 Difference]: Without dead ends: 9287 [2021-11-07 01:04:16,234 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=91, Invalid=251, Unknown=0, NotChecked=0, Total=342 [2021-11-07 01:04:16,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9287 states. [2021-11-07 01:04:17,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9287 to 4606. [2021-11-07 01:04:17,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4606 states, 4118 states have (on average 1.278776104905294) internal successors, (5266), 4217 states have internal predecessors, (5266), 374 states have call successors, (374), 54 states have call predecessors, (374), 54 states have return successors, (842), 344 states have call predecessors, (842), 374 states have call successors, (842) [2021-11-07 01:04:17,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4606 states to 4606 states and 6482 transitions. [2021-11-07 01:04:17,944 INFO L78 Accepts]: Start accepts. Automaton has 4606 states and 6482 transitions. Word has length 88 [2021-11-07 01:04:17,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:04:17,945 INFO L470 AbstractCegarLoop]: Abstraction has 4606 states and 6482 transitions. [2021-11-07 01:04:17,945 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 6.785714285714286) internal successors, (95), 14 states have internal predecessors, (95), 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 01:04:17,945 INFO L276 IsEmpty]: Start isEmpty. Operand 4606 states and 6482 transitions. [2021-11-07 01:04:17,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-11-07 01:04:17,947 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:04:17,947 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] [2021-11-07 01:04:17,988 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (36)] Forceful destruction successful, exit code 0 [2021-11-07 01:04:18,154 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:04:18,154 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [change_modeErr0ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr1ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr2ASSERT_VIOLATIONERROR_FUNCTION (and 107 more)] === [2021-11-07 01:04:18,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:04:18,155 INFO L85 PathProgramCache]: Analyzing trace with hash -1378216416, now seen corresponding path program 1 times [2021-11-07 01:04:18,157 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:04:18,157 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [852477026] [2021-11-07 01:04:18,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:04:18,158 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:04:18,158 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:04:18,158 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:04:18,160 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (37)] Waiting until timeout for monitored process [2021-11-07 01:04:21,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:04:21,437 INFO L263 TraceCheckSpWp]: Trace formula consists of 1245 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 01:04:21,440 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:04:22,173 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 01:04:22,173 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:04:22,825 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 01:04:22,825 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:04:22,825 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [852477026] [2021-11-07 01:04:22,825 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [852477026] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:04:22,825 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:04:22,826 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 01:04:22,826 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629751805] [2021-11-07 01:04:22,826 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:04:22,826 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:04:22,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:04:22,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:04:22,827 INFO L87 Difference]: Start difference. First operand 4606 states and 6482 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 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 01:04:26,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:04:26,307 INFO L93 Difference]: Finished difference Result 6481 states and 9373 transitions. [2021-11-07 01:04:26,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 01:04:26,308 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 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 94 [2021-11-07 01:04:26,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:04:26,326 INFO L225 Difference]: With dead ends: 6481 [2021-11-07 01:04:26,326 INFO L226 Difference]: Without dead ends: 6459 [2021-11-07 01:04:26,329 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-07 01:04:26,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6459 states. [2021-11-07 01:04:28,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6459 to 4584. [2021-11-07 01:04:28,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4584 states, 4107 states have (on average 1.2695398100803506) internal successors, (5214), 4195 states have internal predecessors, (5214), 374 states have call successors, (374), 54 states have call predecessors, (374), 54 states have return successors, (842), 344 states have call predecessors, (842), 374 states have call successors, (842) [2021-11-07 01:04:28,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4584 states to 4584 states and 6430 transitions. [2021-11-07 01:04:28,092 INFO L78 Accepts]: Start accepts. Automaton has 4584 states and 6430 transitions. Word has length 94 [2021-11-07 01:04:28,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:04:28,092 INFO L470 AbstractCegarLoop]: Abstraction has 4584 states and 6430 transitions. [2021-11-07 01:04:28,092 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 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 01:04:28,093 INFO L276 IsEmpty]: Start isEmpty. Operand 4584 states and 6430 transitions. [2021-11-07 01:04:28,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-11-07 01:04:28,095 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:04:28,096 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] [2021-11-07 01:04:28,133 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (37)] Forceful destruction successful, exit code 0 [2021-11-07 01:04:28,296 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:04:28,296 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting uss720_disconnectErr0ASSERT_VIOLATIONERROR_FUNCTION === [change_modeErr0ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr1ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr2ASSERT_VIOLATIONERROR_FUNCTION (and 107 more)] === [2021-11-07 01:04:28,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:04:28,297 INFO L85 PathProgramCache]: Analyzing trace with hash 1375901834, now seen corresponding path program 1 times [2021-11-07 01:04:28,298 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:04:28,298 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [818646618] [2021-11-07 01:04:28,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:04:28,299 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:04:28,299 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:04:28,299 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:04:28,301 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (38)] Waiting until timeout for monitored process [2021-11-07 01:04:31,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:04:31,222 INFO L263 TraceCheckSpWp]: Trace formula consists of 1258 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-07 01:04:31,224 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:04:31,796 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 01:04:31,796 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:04:32,609 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 01:04:32,610 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:04:32,610 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [818646618] [2021-11-07 01:04:32,610 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [818646618] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:04:32,610 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:04:32,610 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 11] imperfect sequences [] total 19 [2021-11-07 01:04:32,610 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366317909] [2021-11-07 01:04:32,611 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-11-07 01:04:32,611 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:04:32,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-11-07 01:04:32,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=299, Unknown=0, NotChecked=0, Total=342 [2021-11-07 01:04:32,612 INFO L87 Difference]: Start difference. First operand 4584 states and 6430 transitions. Second operand has 19 states, 19 states have (on average 5.947368421052632) internal successors, (113), 19 states have internal predecessors, (113), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:04:40,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:04:40,746 INFO L93 Difference]: Finished difference Result 13159 states and 18803 transitions. [2021-11-07 01:04:40,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-11-07 01:04:40,747 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 5.947368421052632) internal successors, (113), 19 states have internal predecessors, (113), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2021-11-07 01:04:40,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:04:40,778 INFO L225 Difference]: With dead ends: 13159 [2021-11-07 01:04:40,778 INFO L226 Difference]: Without dead ends: 9019 [2021-11-07 01:04:40,801 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=298, Invalid=892, Unknown=0, NotChecked=0, Total=1190 [2021-11-07 01:04:40,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9019 states. [2021-11-07 01:04:43,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9019 to 4648. [2021-11-07 01:04:43,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4648 states, 4171 states have (on average 1.2654039798609447) internal successors, (5278), 4259 states have internal predecessors, (5278), 374 states have call successors, (374), 54 states have call predecessors, (374), 54 states have return successors, (842), 344 states have call predecessors, (842), 374 states have call successors, (842) [2021-11-07 01:04:43,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4648 states to 4648 states and 6494 transitions. [2021-11-07 01:04:43,193 INFO L78 Accepts]: Start accepts. Automaton has 4648 states and 6494 transitions. Word has length 97 [2021-11-07 01:04:43,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:04:43,194 INFO L470 AbstractCegarLoop]: Abstraction has 4648 states and 6494 transitions. [2021-11-07 01:04:43,194 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 5.947368421052632) internal successors, (113), 19 states have internal predecessors, (113), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:04:43,194 INFO L276 IsEmpty]: Start isEmpty. Operand 4648 states and 6494 transitions. [2021-11-07 01:04:43,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-11-07 01:04:43,196 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:04:43,197 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] [2021-11-07 01:04:43,240 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (38)] Forceful destruction successful, exit code 0 [2021-11-07 01:04:43,405 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:04:43,406 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [change_modeErr0ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr1ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr2ASSERT_VIOLATIONERROR_FUNCTION (and 107 more)] === [2021-11-07 01:04:43,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:04:43,406 INFO L85 PathProgramCache]: Analyzing trace with hash 1110456728, now seen corresponding path program 1 times [2021-11-07 01:04:43,407 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:04:43,407 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1141611102] [2021-11-07 01:04:43,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:04:43,408 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:04:43,408 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:04:43,409 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:04:43,411 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (39)] Waiting until timeout for monitored process [2021-11-07 01:04:46,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:04:47,047 INFO L263 TraceCheckSpWp]: Trace formula consists of 1267 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 01:04:47,050 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:04:47,317 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 01:04:47,317 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:04:47,547 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 01:04:47,547 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:04:47,547 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1141611102] [2021-11-07 01:04:47,548 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1141611102] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:04:47,548 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:04:47,548 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2021-11-07 01:04:47,548 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928963648] [2021-11-07 01:04:47,549 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:04:47,549 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:04:47,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:04:47,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:04:47,550 INFO L87 Difference]: Start difference. First operand 4648 states and 6494 transitions. Second operand has 5 states, 5 states have (on average 20.6) internal successors, (103), 5 states have internal predecessors, (103), 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 01:04:53,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:04:53,806 INFO L93 Difference]: Finished difference Result 6863 states and 9761 transitions. [2021-11-07 01:04:53,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 01:04:53,807 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 5 states have internal predecessors, (103), 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 101 [2021-11-07 01:04:53,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:04:53,828 INFO L225 Difference]: With dead ends: 6863 [2021-11-07 01:04:53,828 INFO L226 Difference]: Without dead ends: 6841 [2021-11-07 01:04:53,830 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-07 01:04:53,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6841 states. [2021-11-07 01:04:55,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6841 to 4626. [2021-11-07 01:04:55,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4626 states, 4160 states have (on average 1.25625) internal successors, (5226), 4237 states have internal predecessors, (5226), 374 states have call successors, (374), 54 states have call predecessors, (374), 54 states have return successors, (842), 344 states have call predecessors, (842), 374 states have call successors, (842) [2021-11-07 01:04:55,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4626 states to 4626 states and 6442 transitions. [2021-11-07 01:04:55,845 INFO L78 Accepts]: Start accepts. Automaton has 4626 states and 6442 transitions. Word has length 101 [2021-11-07 01:04:55,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:04:55,846 INFO L470 AbstractCegarLoop]: Abstraction has 4626 states and 6442 transitions. [2021-11-07 01:04:55,846 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 5 states have internal predecessors, (103), 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 01:04:55,846 INFO L276 IsEmpty]: Start isEmpty. Operand 4626 states and 6442 transitions. [2021-11-07 01:04:55,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-11-07 01:04:55,847 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:04:55,847 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] [2021-11-07 01:04:55,887 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (39)] Ended with exit code 0 [2021-11-07 01:04:56,047 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:04:56,048 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting submit_async_requestErr0ASSERT_VIOLATIONERROR_FUNCTION === [change_modeErr0ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr1ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr2ASSERT_VIOLATIONERROR_FUNCTION (and 107 more)] === [2021-11-07 01:04:56,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:04:56,048 INFO L85 PathProgramCache]: Analyzing trace with hash 1227832795, now seen corresponding path program 1 times [2021-11-07 01:04:56,050 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:04:56,050 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2090506881] [2021-11-07 01:04:56,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:04:56,050 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:04:56,050 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:04:56,051 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:04:56,056 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (40)] Waiting until timeout for monitored process [2021-11-07 01:04:59,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:04:59,558 INFO L263 TraceCheckSpWp]: Trace formula consists of 1328 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-07 01:04:59,560 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:04:59,902 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 01:04:59,902 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:05:00,248 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 01:05:00,249 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:05:00,249 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2090506881] [2021-11-07 01:05:00,249 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2090506881] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:05:00,249 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:05:00,249 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-07 01:05:00,249 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723579901] [2021-11-07 01:05:00,250 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-07 01:05:00,250 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:05:00,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-07 01:05:00,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-07 01:05:00,251 INFO L87 Difference]: Start difference. First operand 4626 states and 6442 transitions. Second operand has 8 states, 8 states have (on average 13.125) internal successors, (105), 8 states have internal predecessors, (105), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:05:08,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:05:08,453 INFO L93 Difference]: Finished difference Result 13641 states and 19275 transitions. [2021-11-07 01:05:08,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 01:05:08,454 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.125) internal successors, (105), 8 states have internal predecessors, (105), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2021-11-07 01:05:08,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:05:08,484 INFO L225 Difference]: With dead ends: 13641 [2021-11-07 01:05:08,484 INFO L226 Difference]: Without dead ends: 9257 [2021-11-07 01:05:08,506 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 198 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-11-07 01:05:08,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9257 states. [2021-11-07 01:05:10,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9257 to 4629. [2021-11-07 01:05:10,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4629 states, 4163 states have (on average 1.2560653374969974) internal successors, (5229), 4240 states have internal predecessors, (5229), 374 states have call successors, (374), 54 states have call predecessors, (374), 54 states have return successors, (842), 344 states have call predecessors, (842), 374 states have call successors, (842) [2021-11-07 01:05:10,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4629 states to 4629 states and 6445 transitions. [2021-11-07 01:05:10,573 INFO L78 Accepts]: Start accepts. Automaton has 4629 states and 6445 transitions. Word has length 103 [2021-11-07 01:05:10,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:05:10,573 INFO L470 AbstractCegarLoop]: Abstraction has 4629 states and 6445 transitions. [2021-11-07 01:05:10,573 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.125) internal successors, (105), 8 states have internal predecessors, (105), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:05:10,574 INFO L276 IsEmpty]: Start isEmpty. Operand 4629 states and 6445 transitions. [2021-11-07 01:05:10,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-11-07 01:05:10,575 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:05:10,575 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] [2021-11-07 01:05:10,617 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (40)] Forceful destruction successful, exit code 0 [2021-11-07 01:05:10,775 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:05:10,776 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting submit_async_requestErr0ASSERT_VIOLATIONERROR_FUNCTION === [change_modeErr0ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr1ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr2ASSERT_VIOLATIONERROR_FUNCTION (and 107 more)] === [2021-11-07 01:05:10,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:05:10,781 INFO L85 PathProgramCache]: Analyzing trace with hash -143257088, now seen corresponding path program 1 times [2021-11-07 01:05:10,783 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:05:10,783 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [208312499] [2021-11-07 01:05:10,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:05:10,784 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:05:10,784 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:05:10,785 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:05:10,793 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (41)] Waiting until timeout for monitored process [2021-11-07 01:05:14,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:05:14,384 INFO L263 TraceCheckSpWp]: Trace formula consists of 1348 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 01:05:14,386 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:05:15,155 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 01:05:15,155 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:05:15,964 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 01:05:15,965 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:05:15,965 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [208312499] [2021-11-07 01:05:15,965 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [208312499] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:05:15,965 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:05:15,965 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-07 01:05:15,966 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93201715] [2021-11-07 01:05:15,966 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:05:15,966 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:05:15,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:05:15,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:05:15,967 INFO L87 Difference]: Start difference. First operand 4629 states and 6445 transitions. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:05:18,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:05:18,014 INFO L93 Difference]: Finished difference Result 9088 states and 13592 transitions. [2021-11-07 01:05:18,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 01:05:18,015 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-11-07 01:05:18,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:05:18,047 INFO L225 Difference]: With dead ends: 9088 [2021-11-07 01:05:18,047 INFO L226 Difference]: Without dead ends: 4637 [2021-11-07 01:05:18,105 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 211 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-07 01:05:18,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4637 states. [2021-11-07 01:05:19,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4637 to 4635. [2021-11-07 01:05:19,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4635 states, 4166 states have (on average 1.2520403264522324) internal successors, (5216), 4246 states have internal predecessors, (5216), 374 states have call successors, (374), 54 states have call predecessors, (374), 57 states have return successors, (884), 344 states have call predecessors, (884), 374 states have call successors, (884) [2021-11-07 01:05:19,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4635 states to 4635 states and 6474 transitions. [2021-11-07 01:05:19,917 INFO L78 Accepts]: Start accepts. Automaton has 4635 states and 6474 transitions. Word has length 108 [2021-11-07 01:05:19,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:05:19,917 INFO L470 AbstractCegarLoop]: Abstraction has 4635 states and 6474 transitions. [2021-11-07 01:05:19,917 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:05:19,918 INFO L276 IsEmpty]: Start isEmpty. Operand 4635 states and 6474 transitions. [2021-11-07 01:05:19,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-11-07 01:05:19,919 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:05:19,919 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] [2021-11-07 01:05:19,957 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (41)] Forceful destruction successful, exit code 0 [2021-11-07 01:05:20,119 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:05:20,119 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting submit_async_requestErr0ASSERT_VIOLATIONERROR_FUNCTION === [change_modeErr0ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr1ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr2ASSERT_VIOLATIONERROR_FUNCTION (and 107 more)] === [2021-11-07 01:05:20,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:05:20,120 INFO L85 PathProgramCache]: Analyzing trace with hash -143197506, now seen corresponding path program 1 times [2021-11-07 01:05:20,121 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:05:20,121 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [471907350] [2021-11-07 01:05:20,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:05:20,122 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:05:20,122 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:05:20,122 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:05:20,123 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (42)] Waiting until timeout for monitored process [2021-11-07 01:05:23,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:05:23,703 INFO L263 TraceCheckSpWp]: Trace formula consists of 1348 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 01:05:23,705 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:05:23,984 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 01:05:23,984 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:05:24,225 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 01:05:24,226 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:05:24,226 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [471907350] [2021-11-07 01:05:24,226 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [471907350] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:05:24,226 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:05:24,226 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-07 01:05:24,226 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814350487] [2021-11-07 01:05:24,227 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 01:05:24,227 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:05:24,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 01:05:24,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-07 01:05:24,228 INFO L87 Difference]: Start difference. First operand 4635 states and 6474 transitions. Second operand has 6 states, 6 states have (on average 18.166666666666668) internal successors, (109), 6 states have internal predecessors, (109), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:05:26,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:05:26,188 INFO L93 Difference]: Finished difference Result 4637 states and 6489 transitions. [2021-11-07 01:05:26,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 01:05:26,189 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.166666666666668) internal successors, (109), 6 states have internal predecessors, (109), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-11-07 01:05:26,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:05:26,206 INFO L225 Difference]: With dead ends: 4637 [2021-11-07 01:05:26,206 INFO L226 Difference]: Without dead ends: 4629 [2021-11-07 01:05:26,208 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 210 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-07 01:05:26,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4629 states. [2021-11-07 01:05:28,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4629 to 4627. [2021-11-07 01:05:28,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4627 states, 4162 states have (on average 1.248438250840942) internal successors, (5196), 4238 states have internal predecessors, (5196), 374 states have call successors, (374), 54 states have call predecessors, (374), 57 states have return successors, (884), 344 states have call predecessors, (884), 374 states have call successors, (884) [2021-11-07 01:05:28,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4627 states to 4627 states and 6454 transitions. [2021-11-07 01:05:28,118 INFO L78 Accepts]: Start accepts. Automaton has 4627 states and 6454 transitions. Word has length 108 [2021-11-07 01:05:28,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:05:28,119 INFO L470 AbstractCegarLoop]: Abstraction has 4627 states and 6454 transitions. [2021-11-07 01:05:28,119 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.166666666666668) internal successors, (109), 6 states have internal predecessors, (109), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:05:28,119 INFO L276 IsEmpty]: Start isEmpty. Operand 4627 states and 6454 transitions. [2021-11-07 01:05:28,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2021-11-07 01:05:28,121 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:05:28,122 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:05:28,180 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (42)] Forceful destruction successful, exit code 0 [2021-11-07 01:05:28,336 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:05:28,336 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [change_modeErr0ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr1ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr2ASSERT_VIOLATIONERROR_FUNCTION (and 107 more)] === [2021-11-07 01:05:28,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:05:28,337 INFO L85 PathProgramCache]: Analyzing trace with hash 90292234, now seen corresponding path program 1 times [2021-11-07 01:05:28,339 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:05:28,339 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [521175668] [2021-11-07 01:05:28,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:05:28,339 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:05:28,339 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:05:28,340 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:05:28,341 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (43)] Waiting until timeout for monitored process [2021-11-07 01:05:32,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:05:32,173 INFO L263 TraceCheckSpWp]: Trace formula consists of 1455 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-07 01:05:32,177 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:05:33,072 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-07 01:05:33,073 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:05:33,919 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-07 01:05:33,919 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:05:33,919 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [521175668] [2021-11-07 01:05:33,919 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [521175668] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-07 01:05:33,919 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-11-07 01:05:33,920 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [9] total 11 [2021-11-07 01:05:33,920 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228540513] [2021-11-07 01:05:33,920 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-07 01:05:33,920 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:05:33,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-07 01:05:33,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2021-11-07 01:05:33,921 INFO L87 Difference]: Start difference. First operand 4627 states and 6454 transitions. Second operand has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 9 states have internal predecessors, (114), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-07 01:05:40,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:05:40,611 INFO L93 Difference]: Finished difference Result 9096 states and 12781 transitions. [2021-11-07 01:05:40,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-07 01:05:40,612 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 9 states have internal predecessors, (114), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 125 [2021-11-07 01:05:40,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:05:40,636 INFO L225 Difference]: With dead ends: 9096 [2021-11-07 01:05:40,636 INFO L226 Difference]: Without dead ends: 4635 [2021-11-07 01:05:40,673 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 239 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2021-11-07 01:05:40,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4635 states. [2021-11-07 01:05:42,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4635 to 4635. [2021-11-07 01:05:42,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4635 states, 4166 states have (on average 1.2479596735477676) internal successors, (5199), 4246 states have internal predecessors, (5199), 374 states have call successors, (374), 54 states have call predecessors, (374), 61 states have return successors, (932), 344 states have call predecessors, (932), 374 states have call successors, (932) [2021-11-07 01:05:42,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4635 states to 4635 states and 6505 transitions. [2021-11-07 01:05:42,551 INFO L78 Accepts]: Start accepts. Automaton has 4635 states and 6505 transitions. Word has length 125 [2021-11-07 01:05:42,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:05:42,551 INFO L470 AbstractCegarLoop]: Abstraction has 4635 states and 6505 transitions. [2021-11-07 01:05:42,552 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 9 states have internal predecessors, (114), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-07 01:05:42,552 INFO L276 IsEmpty]: Start isEmpty. Operand 4635 states and 6505 transitions. [2021-11-07 01:05:42,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2021-11-07 01:05:42,555 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:05:42,555 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] [2021-11-07 01:05:42,599 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (43)] Forceful destruction successful, exit code 0 [2021-11-07 01:05:42,765 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:05:42,765 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION === [change_modeErr0ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr1ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr2ASSERT_VIOLATIONERROR_FUNCTION (and 107 more)] === [2021-11-07 01:05:42,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:05:42,765 INFO L85 PathProgramCache]: Analyzing trace with hash -1874260073, now seen corresponding path program 1 times [2021-11-07 01:05:42,767 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:05:42,767 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1334651810] [2021-11-07 01:05:42,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:05:42,767 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:05:42,767 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:05:42,768 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:05:42,769 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (44)] Waiting until timeout for monitored process [2021-11-07 01:05:46,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:05:46,162 INFO L263 TraceCheckSpWp]: Trace formula consists of 1308 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-07 01:05:46,167 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:05:46,615 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 01:05:46,615 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:05:47,076 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 01:05:47,076 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:05:47,076 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1334651810] [2021-11-07 01:05:47,076 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1334651810] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:05:47,076 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:05:47,077 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-07 01:05:47,077 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446062850] [2021-11-07 01:05:47,077 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-07 01:05:47,078 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:05:47,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-07 01:05:47,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-07 01:05:47,079 INFO L87 Difference]: Start difference. First operand 4635 states and 6505 transitions. Second operand has 8 states, 8 states have (on average 16.0) internal successors, (128), 6 states have internal predecessors, (128), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-07 01:06:32,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:06:32,098 INFO L93 Difference]: Finished difference Result 11494 states and 16411 transitions. [2021-11-07 01:06:32,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 01:06:32,099 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 16.0) internal successors, (128), 6 states have internal predecessors, (128), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 126 [2021-11-07 01:06:32,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:06:32,132 INFO L225 Difference]: With dead ends: 11494 [2021-11-07 01:06:32,132 INFO L226 Difference]: Without dead ends: 7141 [2021-11-07 01:06:32,156 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 244 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-07 01:06:32,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7141 states. [2021-11-07 01:06:34,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7141 to 4723. [2021-11-07 01:06:34,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4723 states, 4250 states have (on average 1.2430588235294118) internal successors, (5283), 4294 states have internal predecessors, (5283), 374 states have call successors, (374), 54 states have call predecessors, (374), 65 states have return successors, (1016), 384 states have call predecessors, (1016), 374 states have call successors, (1016) [2021-11-07 01:06:34,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4723 states to 4723 states and 6673 transitions. [2021-11-07 01:06:34,405 INFO L78 Accepts]: Start accepts. Automaton has 4723 states and 6673 transitions. Word has length 126 [2021-11-07 01:06:34,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:06:34,405 INFO L470 AbstractCegarLoop]: Abstraction has 4723 states and 6673 transitions. [2021-11-07 01:06:34,405 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 16.0) internal successors, (128), 6 states have internal predecessors, (128), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-07 01:06:34,406 INFO L276 IsEmpty]: Start isEmpty. Operand 4723 states and 6673 transitions. [2021-11-07 01:06:34,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2021-11-07 01:06:34,410 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:06:34,410 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] [2021-11-07 01:06:34,471 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (44)] Forceful destruction successful, exit code 0 [2021-11-07 01:06:34,624 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:06:34,624 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting destroy_asyncErr0ASSERT_VIOLATIONERROR_FUNCTION === [change_modeErr0ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr1ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr2ASSERT_VIOLATIONERROR_FUNCTION (and 107 more)] === [2021-11-07 01:06:34,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:06:34,625 INFO L85 PathProgramCache]: Analyzing trace with hash 402535482, now seen corresponding path program 1 times [2021-11-07 01:06:34,626 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:06:34,627 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [833157303] [2021-11-07 01:06:34,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:06:34,627 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:06:34,627 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:06:34,628 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:06:34,629 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (45)] Waiting until timeout for monitored process [2021-11-07 01:06:38,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:06:38,471 INFO L263 TraceCheckSpWp]: Trace formula consists of 1520 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-07 01:06:38,474 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:06:38,983 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 01:06:38,983 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:06:39,541 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 01:06:39,541 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:06:39,541 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [833157303] [2021-11-07 01:06:39,541 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [833157303] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:06:39,542 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:06:39,542 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-07 01:06:39,542 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880556871] [2021-11-07 01:06:39,542 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-07 01:06:39,543 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:06:39,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-07 01:06:39,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-07 01:06:39,543 INFO L87 Difference]: Start difference. First operand 4723 states and 6673 transitions. Second operand has 8 states, 8 states have (on average 16.375) internal successors, (131), 6 states have internal predecessors, (131), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-07 01:06:41,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:06:41,389 INFO L93 Difference]: Finished difference Result 9292 states and 14225 transitions. [2021-11-07 01:06:41,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 01:06:41,389 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 16.375) internal successors, (131), 6 states have internal predecessors, (131), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 134 [2021-11-07 01:06:41,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:06:41,414 INFO L225 Difference]: With dead ends: 9292 [2021-11-07 01:06:41,415 INFO L226 Difference]: Without dead ends: 4747 [2021-11-07 01:06:41,463 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 266 GetRequests, 260 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-07 01:06:41,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4747 states. [2021-11-07 01:06:43,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4747 to 4735. [2021-11-07 01:06:43,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4735 states, 4260 states have (on average 1.242488262910798) internal successors, (5293), 4302 states have internal predecessors, (5293), 374 states have call successors, (374), 54 states have call predecessors, (374), 67 states have return successors, (1058), 388 states have call predecessors, (1058), 374 states have call successors, (1058) [2021-11-07 01:06:43,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4735 states to 4735 states and 6725 transitions. [2021-11-07 01:06:43,616 INFO L78 Accepts]: Start accepts. Automaton has 4735 states and 6725 transitions. Word has length 134 [2021-11-07 01:06:43,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:06:43,617 INFO L470 AbstractCegarLoop]: Abstraction has 4735 states and 6725 transitions. [2021-11-07 01:06:43,617 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 16.375) internal successors, (131), 6 states have internal predecessors, (131), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-07 01:06:43,617 INFO L276 IsEmpty]: Start isEmpty. Operand 4735 states and 6725 transitions. [2021-11-07 01:06:43,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2021-11-07 01:06:43,620 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:06:43,620 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] [2021-11-07 01:06:43,664 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (45)] Forceful destruction successful, exit code 0 [2021-11-07 01:06:43,820 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:06:43,821 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting destroy_asyncErr0ASSERT_VIOLATIONERROR_FUNCTION === [change_modeErr0ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr1ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr2ASSERT_VIOLATIONERROR_FUNCTION (and 107 more)] === [2021-11-07 01:06:43,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:06:43,821 INFO L85 PathProgramCache]: Analyzing trace with hash -495009487, now seen corresponding path program 1 times [2021-11-07 01:06:43,822 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:06:43,823 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [576628865] [2021-11-07 01:06:43,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:06:43,823 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:06:43,823 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:06:43,824 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:06:43,825 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (46)] Waiting until timeout for monitored process [2021-11-07 01:06:47,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:06:47,900 INFO L263 TraceCheckSpWp]: Trace formula consists of 1471 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-07 01:06:47,903 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:06:48,455 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 01:06:48,456 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:06:49,002 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 01:06:49,002 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:06:49,002 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [576628865] [2021-11-07 01:06:49,003 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [576628865] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:06:49,003 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:06:49,003 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 10 [2021-11-07 01:06:49,003 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262318943] [2021-11-07 01:06:49,004 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-07 01:06:49,004 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:06:49,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-07 01:06:49,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2021-11-07 01:06:49,005 INFO L87 Difference]: Start difference. First operand 4735 states and 6725 transitions. Second operand has 10 states, 8 states have (on average 16.5) internal successors, (132), 6 states have internal predecessors, (132), 4 states have call successors, (6), 5 states have call predecessors, (6), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:06:53,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:06:53,316 INFO L93 Difference]: Finished difference Result 9364 states and 14205 transitions. [2021-11-07 01:06:53,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-07 01:06:53,318 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 16.5) internal successors, (132), 6 states have internal predecessors, (132), 4 states have call successors, (6), 5 states have call predecessors, (6), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2021-11-07 01:06:53,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:06:53,339 INFO L225 Difference]: With dead ends: 9364 [2021-11-07 01:06:53,339 INFO L226 Difference]: Without dead ends: 4807 [2021-11-07 01:06:53,377 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 274 GetRequests, 257 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=69, Invalid=237, Unknown=0, NotChecked=0, Total=306 [2021-11-07 01:06:53,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4807 states. [2021-11-07 01:06:55,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4807 to 4807. [2021-11-07 01:06:55,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4807 states, 4316 states have (on average 1.240268767377201) internal successors, (5353), 4358 states have internal predecessors, (5353), 382 states have call successors, (382), 62 states have call predecessors, (382), 75 states have return successors, (1076), 396 states have call predecessors, (1076), 382 states have call successors, (1076) [2021-11-07 01:06:55,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4807 states to 4807 states and 6811 transitions. [2021-11-07 01:06:55,837 INFO L78 Accepts]: Start accepts. Automaton has 4807 states and 6811 transitions. Word has length 134 [2021-11-07 01:06:55,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:06:55,838 INFO L470 AbstractCegarLoop]: Abstraction has 4807 states and 6811 transitions. [2021-11-07 01:06:55,838 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 16.5) internal successors, (132), 6 states have internal predecessors, (132), 4 states have call successors, (6), 5 states have call predecessors, (6), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:06:55,838 INFO L276 IsEmpty]: Start isEmpty. Operand 4807 states and 6811 transitions. [2021-11-07 01:06:55,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2021-11-07 01:06:55,841 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:06:55,841 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] [2021-11-07 01:06:55,898 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (46)] Forceful destruction successful, exit code 0 [2021-11-07 01:06:56,056 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:06:56,056 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting destroy_asyncErr0ASSERT_VIOLATIONERROR_FUNCTION === [change_modeErr0ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr1ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr2ASSERT_VIOLATIONERROR_FUNCTION (and 107 more)] === [2021-11-07 01:06:56,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:06:56,057 INFO L85 PathProgramCache]: Analyzing trace with hash -1055683340, now seen corresponding path program 1 times [2021-11-07 01:06:56,058 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:06:56,058 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [157281939] [2021-11-07 01:06:56,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:06:56,059 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:06:56,059 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:06:56,059 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:06:56,060 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (47)] Waiting until timeout for monitored process [2021-11-07 01:07:00,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:07:00,262 INFO L263 TraceCheckSpWp]: Trace formula consists of 1465 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-07 01:07:00,265 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:07:00,769 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 01:07:00,769 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:07:01,321 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 01:07:01,321 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:07:01,321 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [157281939] [2021-11-07 01:07:01,321 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [157281939] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:07:01,322 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:07:01,322 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 12 [2021-11-07 01:07:01,322 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570374367] [2021-11-07 01:07:01,322 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-07 01:07:01,322 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:07:01,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-07 01:07:01,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2021-11-07 01:07:01,323 INFO L87 Difference]: Start difference. First operand 4807 states and 6811 transitions. Second operand has 12 states, 10 states have (on average 14.8) internal successors, (148), 8 states have internal predecessors, (148), 6 states have call successors, (7), 7 states have call predecessors, (7), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:07:11,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:07:11,057 INFO L93 Difference]: Finished difference Result 9489 states and 14342 transitions. [2021-11-07 01:07:11,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-07 01:07:11,058 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 14.8) internal successors, (148), 8 states have internal predecessors, (148), 6 states have call successors, (7), 7 states have call predecessors, (7), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2021-11-07 01:07:11,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:07:11,081 INFO L225 Difference]: With dead ends: 9489 [2021-11-07 01:07:11,081 INFO L226 Difference]: Without dead ends: 4860 [2021-11-07 01:07:11,122 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 268 GetRequests, 256 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2021-11-07 01:07:11,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4860 states. [2021-11-07 01:07:13,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4860 to 4846. [2021-11-07 01:07:13,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4846 states, 4347 states have (on average 1.2422360248447204) internal successors, (5400), 4392 states have internal predecessors, (5400), 382 states have call successors, (382), 66 states have call predecessors, (382), 83 states have return successors, (1046), 397 states have call predecessors, (1046), 382 states have call successors, (1046) [2021-11-07 01:07:13,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4846 states to 4846 states and 6828 transitions. [2021-11-07 01:07:13,354 INFO L78 Accepts]: Start accepts. Automaton has 4846 states and 6828 transitions. Word has length 134 [2021-11-07 01:07:13,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:07:13,354 INFO L470 AbstractCegarLoop]: Abstraction has 4846 states and 6828 transitions. [2021-11-07 01:07:13,354 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 14.8) internal successors, (148), 8 states have internal predecessors, (148), 6 states have call successors, (7), 7 states have call predecessors, (7), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:07:13,354 INFO L276 IsEmpty]: Start isEmpty. Operand 4846 states and 6828 transitions. [2021-11-07 01:07:13,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2021-11-07 01:07:13,358 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:07:13,359 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] [2021-11-07 01:07:13,415 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (47)] Forceful destruction successful, exit code 0 [2021-11-07 01:07:13,580 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:07:13,580 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION === [change_modeErr0ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr1ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr2ASSERT_VIOLATIONERROR_FUNCTION (and 107 more)] === [2021-11-07 01:07:13,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:07:13,581 INFO L85 PathProgramCache]: Analyzing trace with hash 977860261, now seen corresponding path program 1 times [2021-11-07 01:07:13,583 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:07:13,583 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2076082207] [2021-11-07 01:07:13,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:07:13,583 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:07:13,583 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:07:13,584 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:07:13,587 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (48)] Waiting until timeout for monitored process [2021-11-07 01:07:17,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:07:17,765 INFO L263 TraceCheckSpWp]: Trace formula consists of 1456 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-07 01:07:17,769 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:07:18,134 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 01:07:18,134 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:07:18,399 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 01:07:18,399 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:07:18,399 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2076082207] [2021-11-07 01:07:18,399 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2076082207] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:07:18,399 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:07:18,399 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-07 01:07:18,400 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323714647] [2021-11-07 01:07:18,400 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:07:18,400 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:07:18,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:07:18,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:07:18,401 INFO L87 Difference]: Start difference. First operand 4846 states and 6828 transitions. Second operand has 4 states, 4 states have (on average 32.5) internal successors, (130), 4 states have internal predecessors, (130), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:07:20,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:07:20,779 INFO L93 Difference]: Finished difference Result 9522 states and 14300 transitions. [2021-11-07 01:07:20,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 01:07:20,780 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.5) internal successors, (130), 4 states have internal predecessors, (130), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 133 [2021-11-07 01:07:20,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:07:20,803 INFO L225 Difference]: With dead ends: 9522 [2021-11-07 01:07:20,803 INFO L226 Difference]: Without dead ends: 4854 [2021-11-07 01:07:20,854 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 265 GetRequests, 262 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:07:20,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4854 states. [2021-11-07 01:07:23,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4854 to 4850. [2021-11-07 01:07:23,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4850 states, 4349 states have (on average 1.2402851230167855) internal successors, (5394), 4394 states have internal predecessors, (5394), 382 states have call successors, (382), 66 states have call predecessors, (382), 85 states have return successors, (1049), 397 states have call predecessors, (1049), 382 states have call successors, (1049) [2021-11-07 01:07:23,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4850 states to 4850 states and 6825 transitions. [2021-11-07 01:07:23,087 INFO L78 Accepts]: Start accepts. Automaton has 4850 states and 6825 transitions. Word has length 133 [2021-11-07 01:07:23,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:07:23,088 INFO L470 AbstractCegarLoop]: Abstraction has 4850 states and 6825 transitions. [2021-11-07 01:07:23,088 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.5) internal successors, (130), 4 states have internal predecessors, (130), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:07:23,089 INFO L276 IsEmpty]: Start isEmpty. Operand 4850 states and 6825 transitions. [2021-11-07 01:07:23,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2021-11-07 01:07:23,091 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:07:23,092 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] [2021-11-07 01:07:23,149 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (48)] Ended with exit code 0 [2021-11-07 01:07:23,304 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 48 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:07:23,304 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION === [change_modeErr0ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr1ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr2ASSERT_VIOLATIONERROR_FUNCTION (and 107 more)] === [2021-11-07 01:07:23,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:07:23,305 INFO L85 PathProgramCache]: Analyzing trace with hash 979707303, now seen corresponding path program 1 times [2021-11-07 01:07:23,306 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:07:23,306 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [465923686] [2021-11-07 01:07:23,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:07:23,307 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:07:23,307 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:07:23,307 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:07:23,309 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5537c5a9-0fa7-4e7d-bf8c-9b1395fb3cad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (49)] Waiting until timeout for monitored process [2021-11-07 01:07:35,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:07:35,495 INFO L263 TraceCheckSpWp]: Trace formula consists of 1456 conjuncts, 28 conjunts are in the unsatisfiable core [2021-11-07 01:07:35,498 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:07:35,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:07:35,913 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 23 [2021-11-07 01:07:35,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:07:35,939 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2021-11-07 01:07:36,592 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:07:36,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:07:36,600 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:07:36,600 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 24 treesize of output 13 [2021-11-07 01:07:36,616 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:07:36,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:07:36,620 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 12 [2021-11-07 01:07:36,814 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 01:07:36,814 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:07:38,116 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 43 [2021-11-07 01:07:38,121 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 41 [2021-11-07 01:07:38,277 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 01:07:38,277 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:07:38,277 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [465923686] [2021-11-07 01:07:38,278 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [465923686] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:07:38,278 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:07:38,278 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13, 5] imperfect sequences [] total 16 [2021-11-07 01:07:38,278 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385211957] [2021-11-07 01:07:38,279 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-11-07 01:07:38,279 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:07:38,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-11-07 01:07:38,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=207, Unknown=0, NotChecked=0, Total=240 [2021-11-07 01:07:38,280 INFO L87 Difference]: Start difference. First operand 4850 states and 6825 transitions. Second operand has 16 states, 16 states have (on average 10.0) internal successors, (160), 16 states have internal predecessors, (160), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)