./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-net--atm--lec.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cb5d70d-cc3d-4f19-9502-fb17eade9706/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cb5d70d-cc3d-4f19-9502-fb17eade9706/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cb5d70d-cc3d-4f19-9502-fb17eade9706/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cb5d70d-cc3d-4f19-9502-fb17eade9706/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-net--atm--lec.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cb5d70d-cc3d-4f19-9502-fb17eade9706/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cb5d70d-cc3d-4f19-9502-fb17eade9706/bin/utaipan-vmNK8stdcF --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 0271a94e9583537c53cc956cc665cf103175977e84d74a6d4144b032ac11f321 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 23:53:49,308 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 23:53:49,310 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 23:53:49,339 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 23:53:49,340 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 23:53:49,342 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 23:53:49,343 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 23:53:49,345 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 23:53:49,347 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 23:53:49,349 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 23:53:49,350 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 23:53:49,351 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 23:53:49,352 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 23:53:49,353 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 23:53:49,355 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 23:53:49,356 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 23:53:49,357 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 23:53:49,358 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 23:53:49,361 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 23:53:49,363 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 23:53:49,365 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 23:53:49,367 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 23:53:49,368 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 23:53:49,369 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 23:53:49,373 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 23:53:49,373 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 23:53:49,374 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 23:53:49,375 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 23:53:49,375 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 23:53:49,376 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 23:53:49,377 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 23:53:49,378 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 23:53:49,379 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 23:53:49,379 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 23:53:49,381 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 23:53:49,381 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 23:53:49,382 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 23:53:49,382 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 23:53:49,383 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 23:53:49,384 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 23:53:49,385 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 23:53:49,386 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cb5d70d-cc3d-4f19-9502-fb17eade9706/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-12 23:53:49,409 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 23:53:49,410 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 23:53:49,411 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 23:53:49,411 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 23:53:49,411 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 23:53:49,412 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 23:53:49,412 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 23:53:49,413 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-12 23:53:49,413 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 23:53:49,413 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 23:53:49,414 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-12 23:53:49,414 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-12 23:53:49,415 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 23:53:49,415 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-12 23:53:49,415 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-12 23:53:49,416 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-12 23:53:49,417 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 23:53:49,417 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-12 23:53:49,417 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 23:53:49,418 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 23:53:49,418 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 23:53:49,418 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 23:53:49,419 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 23:53:49,419 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 23:53:49,420 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 23:53:49,420 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 23:53:49,420 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 23:53:49,421 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 23:53:49,421 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:53:49,422 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 23:53:49,422 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 23:53:49,422 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 23:53:49,423 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-12 23:53:49,423 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-12 23:53:49,423 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 23:53:49,424 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 23:53:49,424 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 23:53:49,424 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_9cb5d70d-cc3d-4f19-9502-fb17eade9706/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cb5d70d-cc3d-4f19-9502-fb17eade9706/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0271a94e9583537c53cc956cc665cf103175977e84d74a6d4144b032ac11f321 [2021-11-12 23:53:49,670 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 23:53:49,697 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 23:53:49,700 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 23:53:49,701 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 23:53:49,702 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 23:53:49,703 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cb5d70d-cc3d-4f19-9502-fb17eade9706/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-net--atm--lec.ko-entry_point.cil.out.i [2021-11-12 23:53:49,777 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cb5d70d-cc3d-4f19-9502-fb17eade9706/bin/utaipan-vmNK8stdcF/data/31b0a1a4b/dbf6d6373b7b4e859806c244c410e982/FLAGeb385a832 [2021-11-12 23:53:50,780 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 23:53:50,781 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cb5d70d-cc3d-4f19-9502-fb17eade9706/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-net--atm--lec.ko-entry_point.cil.out.i [2021-11-12 23:53:50,882 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cb5d70d-cc3d-4f19-9502-fb17eade9706/bin/utaipan-vmNK8stdcF/data/31b0a1a4b/dbf6d6373b7b4e859806c244c410e982/FLAGeb385a832 [2021-11-12 23:53:51,256 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cb5d70d-cc3d-4f19-9502-fb17eade9706/bin/utaipan-vmNK8stdcF/data/31b0a1a4b/dbf6d6373b7b4e859806c244c410e982 [2021-11-12 23:53:51,259 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 23:53:51,260 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 23:53:51,261 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 23:53:51,262 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 23:53:51,265 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 23:53:51,265 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:53:51" (1/1) ... [2021-11-12 23:53:51,266 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7222ab27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:53:51, skipping insertion in model container [2021-11-12 23:53:51,266 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:53:51" (1/1) ... [2021-11-12 23:53:51,276 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 23:53:51,403 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 23:53:52,008 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [6098] [2021-11-12 23:53:52,010 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [6099-6100] [2021-11-12 23:53:52,554 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cb5d70d-cc3d-4f19-9502-fb17eade9706/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-net--atm--lec.ko-entry_point.cil.out.i[187542,187555] [2021-11-12 23:53:53,099 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:53:53,100 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:53:53,100 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:53:53,101 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:53:53,107 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:53:53,108 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:53:53,108 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:53:53,109 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:53:53,264 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:53:53,265 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:53:53,289 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:53:53,299 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:53:53,312 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:53:53,321 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:53:53,322 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:53:53,322 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:53:53,351 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:53:53,352 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:53:53,367 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:53:53,394 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:53:53,395 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:53:53,401 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:53:53,404 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:53:53,404 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:53:53,413 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:53:53,423 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:53:53,425 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:53:53,432 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:53:53,440 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:53:53,440 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:53:53,490 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:53:53,501 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:53:53,507 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:53:53,513 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:53:53,528 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:53:53,559 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:53:53,562 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:53:53,565 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:53:53,583 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:53:53,583 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:53:53,611 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:53:53,687 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:53:53,696 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:53:53,723 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:53:53,723 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:53:53,724 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:53:53,727 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:53:53,729 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:53:53,729 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:53:53,735 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:53:53,736 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:53:53,737 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:53:53,737 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:53:53,737 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:53:53,738 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:53:53,861 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:53:53,895 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) [2021-11-12 23:53:53,895 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@4c5adde5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:53:53, skipping insertion in model container [2021-11-12 23:53:53,897 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 23:53:53,897 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-12 23:53:53,899 INFO L158 Benchmark]: Toolchain (without parser) took 2637.96ms. Allocated memory was 107.0MB in the beginning and 151.0MB in the end (delta: 44.0MB). Free memory was 79.8MB in the beginning and 97.2MB in the end (delta: -17.4MB). Peak memory consumption was 78.3MB. Max. memory is 16.1GB. [2021-11-12 23:53:53,900 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 107.0MB. Free memory is still 86.8MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 23:53:53,901 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2635.77ms. Allocated memory was 107.0MB in the beginning and 151.0MB in the end (delta: 44.0MB). Free memory was 79.8MB in the beginning and 97.2MB in the end (delta: -17.4MB). Peak memory consumption was 78.3MB. Max. memory is 16.1GB. [2021-11-12 23:53:53,902 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 107.0MB. Free memory is still 86.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2635.77ms. Allocated memory was 107.0MB in the beginning and 151.0MB in the end (delta: 44.0MB). Free memory was 79.8MB in the beginning and 97.2MB in the end (delta: -17.4MB). Peak memory consumption was 78.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 6617]: 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_9cb5d70d-cc3d-4f19-9502-fb17eade9706/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cb5d70d-cc3d-4f19-9502-fb17eade9706/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cb5d70d-cc3d-4f19-9502-fb17eade9706/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cb5d70d-cc3d-4f19-9502-fb17eade9706/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-net--atm--lec.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cb5d70d-cc3d-4f19-9502-fb17eade9706/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cb5d70d-cc3d-4f19-9502-fb17eade9706/bin/utaipan-vmNK8stdcF --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 0271a94e9583537c53cc956cc665cf103175977e84d74a6d4144b032ac11f321 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 23:53:56,156 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 23:53:56,159 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 23:53:56,229 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 23:53:56,230 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 23:53:56,233 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 23:53:56,235 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 23:53:56,239 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 23:53:56,243 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 23:53:56,253 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 23:53:56,255 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 23:53:56,257 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 23:53:56,258 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 23:53:56,261 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 23:53:56,263 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 23:53:56,269 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 23:53:56,271 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 23:53:56,272 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 23:53:56,274 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 23:53:56,281 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 23:53:56,283 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 23:53:56,285 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 23:53:56,287 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 23:53:56,290 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 23:53:56,301 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 23:53:56,302 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 23:53:56,302 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 23:53:56,304 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 23:53:56,305 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 23:53:56,306 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 23:53:56,306 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 23:53:56,307 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 23:53:56,309 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 23:53:56,310 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 23:53:56,312 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 23:53:56,312 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 23:53:56,313 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 23:53:56,313 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 23:53:56,314 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 23:53:56,316 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 23:53:56,316 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 23:53:56,317 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cb5d70d-cc3d-4f19-9502-fb17eade9706/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-12 23:53:56,362 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 23:53:56,363 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 23:53:56,364 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 23:53:56,364 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 23:53:56,364 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 23:53:56,365 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 23:53:56,365 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 23:53:56,365 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 23:53:56,365 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 23:53:56,366 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 23:53:56,368 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 23:53:56,368 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 23:53:56,368 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 23:53:56,368 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 23:53:56,369 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 23:53:56,369 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 23:53:56,369 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-12 23:53:56,369 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-12 23:53:56,370 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 23:53:56,370 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 23:53:56,370 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 23:53:56,370 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 23:53:56,370 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-12 23:53:56,371 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 23:53:56,371 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:53:56,371 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 23:53:56,371 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 23:53:56,372 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 23:53:56,372 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-12 23:53:56,372 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-12 23:53:56,372 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 23:53:56,373 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 23:53:56,373 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 23:53:56,373 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_9cb5d70d-cc3d-4f19-9502-fb17eade9706/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cb5d70d-cc3d-4f19-9502-fb17eade9706/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0271a94e9583537c53cc956cc665cf103175977e84d74a6d4144b032ac11f321 [2021-11-12 23:53:56,761 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 23:53:56,792 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 23:53:56,794 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 23:53:56,796 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 23:53:56,796 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 23:53:56,798 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cb5d70d-cc3d-4f19-9502-fb17eade9706/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-net--atm--lec.ko-entry_point.cil.out.i [2021-11-12 23:53:56,862 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cb5d70d-cc3d-4f19-9502-fb17eade9706/bin/utaipan-vmNK8stdcF/data/73b8c9d74/0b7da1d1bfb14c5abf6999a44fd4a63e/FLAG67202b139 [2021-11-12 23:53:57,841 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 23:53:57,842 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cb5d70d-cc3d-4f19-9502-fb17eade9706/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-net--atm--lec.ko-entry_point.cil.out.i [2021-11-12 23:53:57,903 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cb5d70d-cc3d-4f19-9502-fb17eade9706/bin/utaipan-vmNK8stdcF/data/73b8c9d74/0b7da1d1bfb14c5abf6999a44fd4a63e/FLAG67202b139 [2021-11-12 23:53:58,218 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cb5d70d-cc3d-4f19-9502-fb17eade9706/bin/utaipan-vmNK8stdcF/data/73b8c9d74/0b7da1d1bfb14c5abf6999a44fd4a63e [2021-11-12 23:53:58,220 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 23:53:58,221 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 23:53:58,223 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 23:53:58,223 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 23:53:58,226 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 23:53:58,227 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:53:58" (1/1) ... [2021-11-12 23:53:58,228 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e6ae7ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:53:58, skipping insertion in model container [2021-11-12 23:53:58,228 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:53:58" (1/1) ... [2021-11-12 23:53:58,235 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 23:53:58,396 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 23:53:59,064 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [6098] [2021-11-12 23:53:59,074 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [6099-6100] [2021-11-12 23:53:59,726 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cb5d70d-cc3d-4f19-9502-fb17eade9706/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-net--atm--lec.ko-entry_point.cil.out.i[187542,187555] [2021-11-12 23:54:01,079 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:54:01,178 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-12 23:54:01,242 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 23:54:01,360 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [6098] [2021-11-12 23:54:01,361 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [6099-6100] [2021-11-12 23:54:01,379 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cb5d70d-cc3d-4f19-9502-fb17eade9706/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-net--atm--lec.ko-entry_point.cil.out.i[187542,187555] [2021-11-12 23:54:01,693 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:54:01,730 INFO L203 MainTranslator]: Completed pre-run [2021-11-12 23:54:01,910 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [6098] [2021-11-12 23:54:01,911 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [6099-6100] [2021-11-12 23:54:01,919 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cb5d70d-cc3d-4f19-9502-fb17eade9706/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-net--atm--lec.ko-entry_point.cil.out.i[187542,187555] [2021-11-12 23:54:02,448 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:54:02,622 INFO L208 MainTranslator]: Completed translation [2021-11-12 23:54:02,623 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:54:02 WrapperNode [2021-11-12 23:54:02,623 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 23:54:02,624 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-12 23:54:02,625 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-12 23:54:02,625 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-12 23:54:02,632 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:54:02" (1/1) ... [2021-11-12 23:54:02,756 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:54:02" (1/1) ... [2021-11-12 23:54:03,060 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-12 23:54:03,060 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-12 23:54:03,061 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-12 23:54:03,061 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-12 23:54:03,070 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:54:02" (1/1) ... [2021-11-12 23:54:03,071 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:54:02" (1/1) ... [2021-11-12 23:54:03,143 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:54:02" (1/1) ... [2021-11-12 23:54:03,144 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:54:02" (1/1) ... [2021-11-12 23:54:03,346 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:54:02" (1/1) ... [2021-11-12 23:54:03,382 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:54:02" (1/1) ... [2021-11-12 23:54:03,434 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:54:02" (1/1) ... [2021-11-12 23:54:03,468 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-12 23:54:03,469 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-12 23:54:03,470 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-12 23:54:03,470 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-12 23:54:03,471 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:54:02" (1/1) ... [2021-11-12 23:54:03,477 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:54:03,488 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cb5d70d-cc3d-4f19-9502-fb17eade9706/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:54:03,502 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cb5d70d-cc3d-4f19-9502-fb17eade9706/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-12 23:54:03,530 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cb5d70d-cc3d-4f19-9502-fb17eade9706/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-12 23:54:03,557 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-12 23:54:03,558 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-12 23:54:03,558 INFO L130 BoogieDeclarations]: Found specification of procedure skb_dequeue [2021-11-12 23:54:03,558 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_dequeue [2021-11-12 23:54:03,558 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-12 23:54:03,558 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-12 23:54:03,558 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_skb [2021-11-12 23:54:03,559 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_skb [2021-11-12 23:54:03,559 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-12 23:54:03,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-12 23:54:03,559 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-12 23:54:03,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-12 23:54:03,559 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-12 23:54:03,560 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-12 23:54:03,560 INFO L130 BoogieDeclarations]: Found specification of procedure send_to_lecd [2021-11-12 23:54:03,560 INFO L138 BoogieDeclarations]: Found implementation of procedure send_to_lecd [2021-11-12 23:54:03,560 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2021-11-12 23:54:03,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2021-11-12 23:54:03,560 INFO L130 BoogieDeclarations]: Found specification of procedure __lec_arp_check_expire [2021-11-12 23:54:03,561 INFO L138 BoogieDeclarations]: Found implementation of procedure __lec_arp_check_expire [2021-11-12 23:54:03,561 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-12 23:54:03,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-12 23:54:03,561 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-11-12 23:54:03,561 INFO L130 BoogieDeclarations]: Found specification of procedure lec_seq_stop [2021-11-12 23:54:03,561 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_seq_stop [2021-11-12 23:54:03,562 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-11-12 23:54:03,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-11-12 23:54:03,562 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_sub [2021-11-12 23:54:03,562 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_sub [2021-11-12 23:54:03,562 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-12 23:54:03,563 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-12 23:54:03,563 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-12 23:54:03,563 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-12 23:54:03,563 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-12 23:54:03,564 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-12 23:54:03,564 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2021-11-12 23:54:03,564 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2021-11-12 23:54:03,564 INFO L130 BoogieDeclarations]: Found specification of procedure lec_arp_find [2021-11-12 23:54:03,564 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_arp_find [2021-11-12 23:54:03,564 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-12 23:54:03,565 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-12 23:54:03,565 INFO L130 BoogieDeclarations]: Found specification of procedure sk_atm [2021-11-12 23:54:03,565 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_atm [2021-11-12 23:54:03,565 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_1 [2021-11-12 23:54:03,565 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_1 [2021-11-12 23:54:03,566 INFO L130 BoogieDeclarations]: Found specification of procedure atm_may_send [2021-11-12 23:54:03,567 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_may_send [2021-11-12 23:54:03,567 INFO L130 BoogieDeclarations]: Found specification of procedure lec_seq_open [2021-11-12 23:54:03,567 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_seq_open [2021-11-12 23:54:03,567 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-11-12 23:54:03,568 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-11-12 23:54:03,568 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2021-11-12 23:54:03,568 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2021-11-12 23:54:03,568 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-12 23:54:03,568 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-12 23:54:03,568 INFO L130 BoogieDeclarations]: Found specification of procedure lec_tx_timeout [2021-11-12 23:54:03,569 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_tx_timeout [2021-11-12 23:54:03,569 INFO L130 BoogieDeclarations]: Found specification of procedure hlist_empty [2021-11-12 23:54:03,569 INFO L138 BoogieDeclarations]: Found implementation of procedure hlist_empty [2021-11-12 23:54:03,570 INFO L130 BoogieDeclarations]: Found specification of procedure lec_flush_complete [2021-11-12 23:54:03,570 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_flush_complete [2021-11-12 23:54:03,570 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-12 23:54:03,570 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2021-11-12 23:54:03,570 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2021-11-12 23:54:03,571 INFO L130 BoogieDeclarations]: Found specification of procedure lec_send [2021-11-12 23:54:03,571 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_send [2021-11-12 23:54:03,571 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u32 [2021-11-12 23:54:03,572 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-11-12 23:54:03,572 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-11-12 23:54:03,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-12 23:54:03,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-12 23:54:03,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-12 23:54:03,572 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-12 23:54:03,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-12 23:54:03,573 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_add [2021-11-12 23:54:03,573 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_add [2021-11-12 23:54:03,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-12 23:54:03,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-12 23:54:03,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-12 23:54:03,574 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2021-11-12 23:54:03,574 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2021-11-12 23:54:03,574 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-12 23:54:03,575 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-11-12 23:54:03,575 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-11-12 23:54:03,575 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2021-11-12 23:54:03,576 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2021-11-12 23:54:03,576 INFO L130 BoogieDeclarations]: Found specification of procedure lec_tbl_walk [2021-11-12 23:54:03,576 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_tbl_walk [2021-11-12 23:54:03,576 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-12 23:54:03,576 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-12 23:54:03,576 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-12 23:54:03,577 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-12 23:54:03,577 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-12 23:54:03,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-12 23:54:03,577 INFO L130 BoogieDeclarations]: Found specification of procedure atm_force_charge [2021-11-12 23:54:03,577 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_force_charge [2021-11-12 23:54:03,577 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2021-11-12 23:54:03,578 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2021-11-12 23:54:03,578 INFO L130 BoogieDeclarations]: Found specification of procedure lec_arp_check_expire [2021-11-12 23:54:03,578 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_arp_check_expire [2021-11-12 23:54:03,578 INFO L130 BoogieDeclarations]: Found specification of procedure atm_return [2021-11-12 23:54:03,578 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_return [2021-11-12 23:54:03,579 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-11-12 23:54:03,579 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-11-12 23:54:03,579 INFO L130 BoogieDeclarations]: Found specification of procedure dev_put [2021-11-12 23:54:03,579 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_put [2021-11-12 23:54:03,580 INFO L130 BoogieDeclarations]: Found specification of procedure lec_get_idx [2021-11-12 23:54:03,580 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_get_idx [2021-11-12 23:54:03,583 INFO L130 BoogieDeclarations]: Found specification of procedure lec_arp_add [2021-11-12 23:54:03,583 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_arp_add [2021-11-12 23:54:03,583 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-12 23:54:03,583 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-12 23:54:03,584 INFO L130 BoogieDeclarations]: Found specification of procedure hlist_add_head [2021-11-12 23:54:03,584 INFO L138 BoogieDeclarations]: Found implementation of procedure hlist_add_head [2021-11-12 23:54:03,585 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2021-11-12 23:54:03,585 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2021-11-12 23:54:03,586 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-12 23:54:03,592 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-12 23:54:03,593 INFO L130 BoogieDeclarations]: Found specification of procedure lec_change_mtu [2021-11-12 23:54:03,593 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_change_mtu [2021-11-12 23:54:03,593 INFO L130 BoogieDeclarations]: Found specification of procedure ether_addr_copy [2021-11-12 23:54:03,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ether_addr_copy [2021-11-12 23:54:03,593 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-12 23:54:03,594 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-12 23:54:03,594 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-12 23:54:03,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-12 23:54:03,594 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_timer_1 [2021-11-12 23:54:03,594 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_timer_1 [2021-11-12 23:54:03,594 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-12 23:54:03,594 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-12 23:54:03,595 INFO L130 BoogieDeclarations]: Found specification of procedure lec_seq_show [2021-11-12 23:54:03,595 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_seq_show [2021-11-12 23:54:03,595 INFO L130 BoogieDeclarations]: Found specification of procedure vcc_release_async [2021-11-12 23:54:03,595 INFO L138 BoogieDeclarations]: Found implementation of procedure vcc_release_async [2021-11-12 23:54:03,595 INFO L130 BoogieDeclarations]: Found specification of procedure hlist_del [2021-11-12 23:54:03,595 INFO L138 BoogieDeclarations]: Found implementation of procedure hlist_del [2021-11-12 23:54:03,595 INFO L130 BoogieDeclarations]: Found specification of procedure seq_release_private [2021-11-12 23:54:03,595 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_release_private [2021-11-12 23:54:03,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-12 23:54:03,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-12 23:54:03,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-12 23:54:03,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-12 23:54:03,596 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2021-11-12 23:54:03,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2021-11-12 23:54:03,596 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-12 23:54:03,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-12 23:54:03,597 INFO L130 BoogieDeclarations]: Found specification of procedure lec_set_multicast_list [2021-11-12 23:54:03,597 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_set_multicast_list [2021-11-12 23:54:03,597 INFO L130 BoogieDeclarations]: Found specification of procedure lec_arp_put [2021-11-12 23:54:03,597 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_arp_put [2021-11-12 23:54:03,597 INFO L130 BoogieDeclarations]: Found specification of procedure lec_arp_hold [2021-11-12 23:54:03,597 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_arp_hold [2021-11-12 23:54:03,598 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-12 23:54:03,598 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_1 [2021-11-12 23:54:03,598 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_1 [2021-11-12 23:54:03,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-12 23:54:03,598 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-12 23:54:03,598 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-12 23:54:03,598 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-12 23:54:03,599 INFO L130 BoogieDeclarations]: Found specification of procedure ether_addr_equal [2021-11-12 23:54:03,599 INFO L138 BoogieDeclarations]: Found implementation of procedure ether_addr_equal [2021-11-12 23:54:03,599 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-12 23:54:03,599 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-12 23:54:03,599 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-12 23:54:03,600 INFO L130 BoogieDeclarations]: Found specification of procedure lec_atm_send [2021-11-12 23:54:03,600 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_atm_send [2021-11-12 23:54:03,600 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_tail [2021-11-12 23:54:03,600 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_tail [2021-11-12 23:54:03,600 INFO L130 BoogieDeclarations]: Found specification of procedure kmemdup [2021-11-12 23:54:03,600 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemdup [2021-11-12 23:54:03,600 INFO L130 BoogieDeclarations]: Found specification of procedure lec_atm_close [2021-11-12 23:54:03,601 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_atm_close [2021-11-12 23:54:03,601 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_delayed_work [2021-11-12 23:54:03,601 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_delayed_work [2021-11-12 23:54:03,601 INFO L130 BoogieDeclarations]: Found specification of procedure make_entry [2021-11-12 23:54:03,601 INFO L138 BoogieDeclarations]: Found implementation of procedure make_entry [2021-11-12 23:54:03,601 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-11-12 23:54:03,601 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-11-12 23:54:03,602 INFO L130 BoogieDeclarations]: Found specification of procedure lec_arp_remove [2021-11-12 23:54:03,602 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_arp_remove [2021-11-12 23:54:03,602 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-12 23:54:03,602 INFO L130 BoogieDeclarations]: Found specification of procedure lec_arp_update [2021-11-12 23:54:03,602 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_arp_update [2021-11-12 23:54:03,602 INFO L130 BoogieDeclarations]: Found specification of procedure lec_arp_clear_vccs [2021-11-12 23:54:03,602 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_arp_clear_vccs [2021-11-12 23:54:03,603 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_to_linear_data [2021-11-12 23:54:03,603 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_to_linear_data [2021-11-12 23:54:03,603 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-12 23:54:03,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-12 23:54:04,940 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-12 23:54:21,913 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-12 23:54:29,397 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##30: assume !(0bv64 != ~bvadd64(lec_addr_delete_~____ptr___0~4#1.base, lec_addr_delete_~____ptr___0~4#1.offset));lec_addr_delete_~tmp___2~14#1.base, lec_addr_delete_~tmp___2~14#1.offset := 0bv64, 0bv64;lec_addr_delete_~entry~10#1.base, lec_addr_delete_~entry~10#1.offset := lec_addr_delete_~tmp___2~14#1.base, lec_addr_delete_~tmp___2~14#1.offset; [2021-11-12 23:54:29,397 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##29: assume 0bv64 != ~bvadd64(lec_addr_delete_~____ptr___0~4#1.base, lec_addr_delete_~____ptr___0~4#1.offset);lec_addr_delete_~__mptr___0~5#1.base, lec_addr_delete_~__mptr___0~5#1.offset := lec_addr_delete_~____ptr___0~4#1.base, lec_addr_delete_~____ptr___0~4#1.offset;lec_addr_delete_~tmp___2~14#1.base, lec_addr_delete_~tmp___2~14#1.offset := lec_addr_delete_~__mptr___0~5#1.base, lec_addr_delete_~__mptr___0~5#1.offset; [2021-11-12 23:55:37,933 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-12 23:55:37,934 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-12 23:55:37,939 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 11:55:37 BoogieIcfgContainer [2021-11-12 23:55:37,939 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-12 23:55:37,941 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-12 23:55:37,941 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-12 23:55:37,944 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-12 23:55:37,945 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 11:53:58" (1/3) ... [2021-11-12 23:55:37,945 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e5fe346 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 11:55:37, skipping insertion in model container [2021-11-12 23:55:37,946 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:54:02" (2/3) ... [2021-11-12 23:55:37,946 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e5fe346 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 11:55:37, skipping insertion in model container [2021-11-12 23:55:37,946 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 11:55:37" (3/3) ... [2021-11-12 23:55:37,947 INFO L111 eAbstractionObserver]: Analyzing ICFG 43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-net--atm--lec.ko-entry_point.cil.out.i [2021-11-12 23:55:37,953 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-12 23:55:37,953 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-12 23:55:38,015 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-12 23:55:38,021 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 [2021-11-12 23:55:38,022 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-12 23:55:38,075 INFO L276 IsEmpty]: Start isEmpty. Operand has 1666 states, 1226 states have (on average 1.3890701468189233) internal successors, (1703), 1266 states have internal predecessors, (1703), 361 states have call successors, (361), 78 states have call predecessors, (361), 77 states have return successors, (352), 342 states have call predecessors, (352), 352 states have call successors, (352) [2021-11-12 23:55:38,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-11-12 23:55:38,091 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:55:38,092 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:55:38,093 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:55:38,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:55:38,098 INFO L85 PathProgramCache]: Analyzing trace with hash -1135839636, now seen corresponding path program 1 times [2021-11-12 23:55:38,124 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:55:38,125 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [113253446] [2021-11-12 23:55:38,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:55:38,126 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:55:38,126 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cb5d70d-cc3d-4f19-9502-fb17eade9706/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:55:38,131 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cb5d70d-cc3d-4f19-9502-fb17eade9706/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:55:38,169 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cb5d70d-cc3d-4f19-9502-fb17eade9706/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-12 23:55:51,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:55:51,707 INFO L263 TraceCheckSpWp]: Trace formula consists of 2909 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 23:55:51,721 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:55:52,473 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2021-11-12 23:55:52,474 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:55:52,963 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2021-11-12 23:55:52,964 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:55:52,964 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [113253446] [2021-11-12 23:55:52,965 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [113253446] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:55:52,966 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:55:52,971 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-12 23:55:52,972 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850731718] [2021-11-12 23:55:52,973 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:55:52,978 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-12 23:55:52,979 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:55:53,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-12 23:55:53,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 23:55:53,021 INFO L87 Difference]: Start difference. First operand has 1666 states, 1226 states have (on average 1.3890701468189233) internal successors, (1703), 1266 states have internal predecessors, (1703), 361 states have call successors, (361), 78 states have call predecessors, (361), 77 states have return successors, (352), 342 states have call predecessors, (352), 352 states have call successors, (352) Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-12 23:55:54,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:55:54,210 INFO L93 Difference]: Finished difference Result 4898 states and 7246 transitions. [2021-11-12 23:55:54,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 23:55:54,214 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 86 [2021-11-12 23:55:54,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:55:54,270 INFO L225 Difference]: With dead ends: 4898 [2021-11-12 23:55:54,270 INFO L226 Difference]: Without dead ends: 3182 [2021-11-12 23:55:54,288 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 23:55:54,294 INFO L933 BasicCegarLoop]: 2730 mSDtfsCounter, 2298 mSDsluCounter, 2369 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 753.68ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2298 SdHoareTripleChecker+Valid, 5099 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 44.80ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 850.74ms IncrementalHoareTripleChecker+Time [2021-11-12 23:55:54,295 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2298 Valid, 5099 Invalid, 11 Unknown, 0 Unchecked, 44.80ms Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 850.74ms Time] [2021-11-12 23:55:54,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3182 states. [2021-11-12 23:55:54,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3182 to 3179. [2021-11-12 23:55:54,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3179 states, 2358 states have (on average 1.3854961832061068) internal successors, (3267), 2416 states have internal predecessors, (3267), 669 states have call successors, (669), 152 states have call predecessors, (669), 151 states have return successors, (668), 648 states have call predecessors, (668), 668 states have call successors, (668) [2021-11-12 23:55:54,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3179 states to 3179 states and 4604 transitions. [2021-11-12 23:55:54,595 INFO L78 Accepts]: Start accepts. Automaton has 3179 states and 4604 transitions. Word has length 86 [2021-11-12 23:55:54,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:55:54,596 INFO L470 AbstractCegarLoop]: Abstraction has 3179 states and 4604 transitions. [2021-11-12 23:55:54,596 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-12 23:55:54,596 INFO L276 IsEmpty]: Start isEmpty. Operand 3179 states and 4604 transitions. [2021-11-12 23:55:54,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-11-12 23:55:54,608 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:55:54,608 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:55:54,671 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cb5d70d-cc3d-4f19-9502-fb17eade9706/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-12 23:55:54,825 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cb5d70d-cc3d-4f19-9502-fb17eade9706/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:55:54,825 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:55:54,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:55:54,826 INFO L85 PathProgramCache]: Analyzing trace with hash 1224754483, now seen corresponding path program 1 times [2021-11-12 23:55:54,839 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:55:54,840 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [934793712] [2021-11-12 23:55:54,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:55:54,840 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:55:54,841 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cb5d70d-cc3d-4f19-9502-fb17eade9706/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:55:54,842 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cb5d70d-cc3d-4f19-9502-fb17eade9706/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:55:54,884 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cb5d70d-cc3d-4f19-9502-fb17eade9706/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-12 23:56:08,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:56:08,617 INFO L263 TraceCheckSpWp]: Trace formula consists of 3026 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 23:56:08,626 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:56:09,451 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2021-11-12 23:56:09,452 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:56:10,204 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2021-11-12 23:56:10,204 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:56:10,205 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [934793712] [2021-11-12 23:56:10,205 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [934793712] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:56:10,205 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:56:10,205 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-12 23:56:10,205 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323563870] [2021-11-12 23:56:10,206 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:56:10,207 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 23:56:10,207 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:56:10,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 23:56:10,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:56:10,208 INFO L87 Difference]: Start difference. First operand 3179 states and 4604 transitions. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-12 23:56:22,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:56:22,922 INFO L93 Difference]: Finished difference Result 12630 states and 18825 transitions. [2021-11-12 23:56:22,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:56:22,923 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 96 [2021-11-12 23:56:22,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:56:23,013 INFO L225 Difference]: With dead ends: 12630 [2021-11-12 23:56:23,014 INFO L226 Difference]: Without dead ends: 9475 [2021-11-12 23:56:23,043 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:56:23,044 INFO L933 BasicCegarLoop]: 3152 mSDtfsCounter, 4759 mSDsluCounter, 6353 mSDsCounter, 0 mSdLazyCounter, 702 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11619.93ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4759 SdHoareTripleChecker+Valid, 9505 SdHoareTripleChecker+Invalid, 708 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 40.92ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 702 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12215.60ms IncrementalHoareTripleChecker+Time [2021-11-12 23:56:23,045 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4759 Valid, 9505 Invalid, 708 Unknown, 0 Unchecked, 40.92ms Time], IncrementalHoareTripleChecker [6 Valid, 702 Invalid, 0 Unknown, 0 Unchecked, 12215.60ms Time] [2021-11-12 23:56:23,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9475 states. [2021-11-12 23:56:23,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9475 to 9469. [2021-11-12 23:56:23,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9469 states, 7036 states have (on average 1.3855884025014213) internal successors, (9749), 7204 states have internal predecessors, (9749), 1981 states have call successors, (1981), 454 states have call predecessors, (1981), 451 states have return successors, (2292), 1920 states have call predecessors, (2292), 1980 states have call successors, (2292) [2021-11-12 23:56:23,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9469 states to 9469 states and 14022 transitions. [2021-11-12 23:56:23,538 INFO L78 Accepts]: Start accepts. Automaton has 9469 states and 14022 transitions. Word has length 96 [2021-11-12 23:56:23,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:56:23,539 INFO L470 AbstractCegarLoop]: Abstraction has 9469 states and 14022 transitions. [2021-11-12 23:56:23,539 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-12 23:56:23,540 INFO L276 IsEmpty]: Start isEmpty. Operand 9469 states and 14022 transitions. [2021-11-12 23:56:23,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-11-12 23:56:23,543 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:56:23,543 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:56:23,605 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cb5d70d-cc3d-4f19-9502-fb17eade9706/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-12 23:56:23,757 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cb5d70d-cc3d-4f19-9502-fb17eade9706/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:56:23,757 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:56:23,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:56:23,758 INFO L85 PathProgramCache]: Analyzing trace with hash -1430654581, now seen corresponding path program 1 times [2021-11-12 23:56:23,771 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:56:23,771 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [604981795] [2021-11-12 23:56:23,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:56:23,771 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:56:23,771 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cb5d70d-cc3d-4f19-9502-fb17eade9706/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:56:23,772 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cb5d70d-cc3d-4f19-9502-fb17eade9706/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:56:23,779 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cb5d70d-cc3d-4f19-9502-fb17eade9706/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-12 23:56:37,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:56:37,556 INFO L263 TraceCheckSpWp]: Trace formula consists of 3032 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 23:56:37,563 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:56:38,378 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2021-11-12 23:56:38,379 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:56:39,221 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2021-11-12 23:56:39,221 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:56:39,221 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [604981795] [2021-11-12 23:56:39,221 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [604981795] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:56:39,221 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:56:39,221 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-12 23:56:39,221 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886979059] [2021-11-12 23:56:39,221 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:56:39,222 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 23:56:39,222 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:56:39,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 23:56:39,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:56:39,223 INFO L87 Difference]: Start difference. First operand 9469 states and 14022 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-12 23:56:52,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:56:52,131 INFO L93 Difference]: Finished difference Result 37792 states and 59057 transitions. [2021-11-12 23:56:52,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:56:52,132 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 99 [2021-11-12 23:56:52,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:56:52,418 INFO L225 Difference]: With dead ends: 37792 [2021-11-12 23:56:52,418 INFO L226 Difference]: Without dead ends: 28347 [2021-11-12 23:56:52,540 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:56:52,543 INFO L933 BasicCegarLoop]: 3134 mSDtfsCounter, 6414 mSDsluCounter, 4052 mSDsCounter, 0 mSdLazyCounter, 699 mSolverCounterSat, 751 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11334.93ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6414 SdHoareTripleChecker+Valid, 7186 SdHoareTripleChecker+Invalid, 1450 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 30.13ms SdHoareTripleChecker+Time, 751 IncrementalHoareTripleChecker+Valid, 699 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12165.99ms IncrementalHoareTripleChecker+Time [2021-11-12 23:56:52,544 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6414 Valid, 7186 Invalid, 1450 Unknown, 0 Unchecked, 30.13ms Time], IncrementalHoareTripleChecker [751 Valid, 699 Invalid, 0 Unknown, 0 Unchecked, 12165.99ms Time] [2021-11-12 23:56:52,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28347 states. [2021-11-12 23:56:53,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28347 to 28341. [2021-11-12 23:56:53,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28341 states, 21078 states have (on average 1.3850934623778348) internal successors, (29195), 21570 states have internal predecessors, (29195), 5909 states have call successors, (5909), 1360 states have call predecessors, (5909), 1353 states have return successors, (8624), 5740 states have call predecessors, (8624), 5908 states have call successors, (8624) [2021-11-12 23:56:54,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28341 states to 28341 states and 43728 transitions. [2021-11-12 23:56:54,177 INFO L78 Accepts]: Start accepts. Automaton has 28341 states and 43728 transitions. Word has length 99 [2021-11-12 23:56:54,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:56:54,178 INFO L470 AbstractCegarLoop]: Abstraction has 28341 states and 43728 transitions. [2021-11-12 23:56:54,179 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-12 23:56:54,179 INFO L276 IsEmpty]: Start isEmpty. Operand 28341 states and 43728 transitions. [2021-11-12 23:56:54,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-11-12 23:56:54,188 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:56:54,189 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:56:54,257 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cb5d70d-cc3d-4f19-9502-fb17eade9706/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-12 23:56:54,411 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cb5d70d-cc3d-4f19-9502-fb17eade9706/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:56:54,411 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:56:54,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:56:54,412 INFO L85 PathProgramCache]: Analyzing trace with hash 690704491, now seen corresponding path program 1 times [2021-11-12 23:56:54,422 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:56:54,422 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2127843703] [2021-11-12 23:56:54,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:56:54,423 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:56:54,423 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cb5d70d-cc3d-4f19-9502-fb17eade9706/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:56:54,424 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cb5d70d-cc3d-4f19-9502-fb17eade9706/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:56:54,463 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cb5d70d-cc3d-4f19-9502-fb17eade9706/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-12 23:57:08,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:57:08,416 INFO L263 TraceCheckSpWp]: Trace formula consists of 3030 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 23:57:08,423 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:57:09,150 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2021-11-12 23:57:09,151 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:57:09,859 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2021-11-12 23:57:09,859 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:57:09,859 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2127843703] [2021-11-12 23:57:09,860 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2127843703] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:57:09,860 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:57:09,860 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-12 23:57:09,860 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789997380] [2021-11-12 23:57:09,860 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:57:09,861 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 23:57:09,861 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:57:09,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 23:57:09,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:57:09,862 INFO L87 Difference]: Start difference. First operand 28341 states and 43728 transitions. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-12 23:57:24,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:57:24,219 INFO L93 Difference]: Finished difference Result 113244 states and 194391 transitions. [2021-11-12 23:57:24,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:57:24,220 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 98 [2021-11-12 23:57:24,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:57:24,984 INFO L225 Difference]: With dead ends: 113244 [2021-11-12 23:57:24,984 INFO L226 Difference]: Without dead ends: 84927 [2021-11-12 23:57:25,250 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:57:25,253 INFO L933 BasicCegarLoop]: 3136 mSDtfsCounter, 6413 mSDsluCounter, 4052 mSDsCounter, 0 mSdLazyCounter, 699 mSolverCounterSat, 751 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10915.11ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6413 SdHoareTripleChecker+Valid, 7188 SdHoareTripleChecker+Invalid, 1450 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 25.43ms SdHoareTripleChecker+Time, 751 IncrementalHoareTripleChecker+Valid, 699 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11729.93ms IncrementalHoareTripleChecker+Time [2021-11-12 23:57:25,254 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6413 Valid, 7188 Invalid, 1450 Unknown, 0 Unchecked, 25.43ms Time], IncrementalHoareTripleChecker [751 Valid, 699 Invalid, 0 Unknown, 0 Unchecked, 11729.93ms Time] [2021-11-12 23:57:25,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84927 states. [2021-11-12 23:57:30,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84927 to 84921. [2021-11-12 23:57:30,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84921 states, 63192 states have (on average 1.384178377009748) internal successors, (87469), 64632 states have internal predecessors, (87469), 17669 states have call successors, (17669), 4078 states have call predecessors, (17669), 4059 states have return successors, (36980), 17200 states have call predecessors, (36980), 17668 states have call successors, (36980) [2021-11-12 23:57:31,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84921 states to 84921 states and 142118 transitions. [2021-11-12 23:57:31,707 INFO L78 Accepts]: Start accepts. Automaton has 84921 states and 142118 transitions. Word has length 98 [2021-11-12 23:57:31,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:57:31,708 INFO L470 AbstractCegarLoop]: Abstraction has 84921 states and 142118 transitions. [2021-11-12 23:57:31,708 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-12 23:57:31,708 INFO L276 IsEmpty]: Start isEmpty. Operand 84921 states and 142118 transitions. [2021-11-12 23:57:31,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-11-12 23:57:31,712 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:57:31,713 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:57:31,775 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cb5d70d-cc3d-4f19-9502-fb17eade9706/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-12 23:57:31,929 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cb5d70d-cc3d-4f19-9502-fb17eade9706/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:57:31,929 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:57:31,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:57:31,930 INFO L85 PathProgramCache]: Analyzing trace with hash -1398929581, now seen corresponding path program 1 times [2021-11-12 23:57:31,940 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:57:31,941 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1892025306] [2021-11-12 23:57:31,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:57:31,941 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:57:31,941 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cb5d70d-cc3d-4f19-9502-fb17eade9706/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:57:31,942 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cb5d70d-cc3d-4f19-9502-fb17eade9706/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:57:31,946 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cb5d70d-cc3d-4f19-9502-fb17eade9706/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-12 23:57:45,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:57:45,703 INFO L263 TraceCheckSpWp]: Trace formula consists of 3028 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 23:57:45,707 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:57:46,406 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2021-11-12 23:57:46,406 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:57:47,086 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2021-11-12 23:57:47,086 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:57:47,086 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1892025306] [2021-11-12 23:57:47,086 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1892025306] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:57:47,087 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:57:47,087 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-12 23:57:47,087 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537611650] [2021-11-12 23:57:47,087 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:57:47,088 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 23:57:47,088 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:57:47,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 23:57:47,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:57:47,089 INFO L87 Difference]: Start difference. First operand 84921 states and 142118 transitions. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-12 23:58:11,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:58:11,021 INFO L93 Difference]: Finished difference Result 339072 states and 695919 transitions. [2021-11-12 23:58:11,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:58:11,023 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 97 [2021-11-12 23:58:11,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:58:14,482 INFO L225 Difference]: With dead ends: 339072 [2021-11-12 23:58:14,483 INFO L226 Difference]: Without dead ends: 254175 [2021-11-12 23:58:16,038 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 190 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:58:16,039 INFO L933 BasicCegarLoop]: 3126 mSDtfsCounter, 6412 mSDsluCounter, 4052 mSDsCounter, 0 mSdLazyCounter, 699 mSolverCounterSat, 753 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10690.09ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6412 SdHoareTripleChecker+Valid, 7178 SdHoareTripleChecker+Invalid, 1452 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 25.14ms SdHoareTripleChecker+Time, 753 IncrementalHoareTripleChecker+Valid, 699 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11495.06ms IncrementalHoareTripleChecker+Time [2021-11-12 23:58:16,040 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6412 Valid, 7178 Invalid, 1452 Unknown, 0 Unchecked, 25.14ms Time], IncrementalHoareTripleChecker [753 Valid, 699 Invalid, 0 Unknown, 0 Unchecked, 11495.06ms Time] [2021-11-12 23:58:16,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254175 states.