./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test19-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 678e0110 Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_416b7004-04b8-48b2-8d91-e0cbc88e2d63/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_416b7004-04b8-48b2-8d91-e0cbc88e2d63/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_416b7004-04b8-48b2-8d91-e0cbc88e2d63/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_416b7004-04b8-48b2-8d91-e0cbc88e2d63/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test19-1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_416b7004-04b8-48b2-8d91-e0cbc88e2d63/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_416b7004-04b8-48b2-8d91-e0cbc88e2d63/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 72d82df7d97aedab3c94a3eb173a5c41df708a8b .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: Alternating quantifiers not yet supported --- Real Ultimate output --- Skipped default analysis because property is memsafety ### Bit-precise run ### This is Ultimate 0.1.24-678e011 [2019-11-20 09:50:23,406 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 09:50:23,414 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 09:50:23,426 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 09:50:23,428 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 09:50:23,430 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 09:50:23,432 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 09:50:23,445 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 09:50:23,447 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 09:50:23,447 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 09:50:23,448 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 09:50:23,450 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 09:50:23,450 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 09:50:23,451 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 09:50:23,452 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 09:50:23,453 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 09:50:23,453 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 09:50:23,454 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 09:50:23,456 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 09:50:23,458 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 09:50:23,459 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 09:50:23,460 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 09:50:23,461 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 09:50:23,462 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 09:50:23,465 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 09:50:23,465 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 09:50:23,465 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 09:50:23,466 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 09:50:23,466 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 09:50:23,467 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 09:50:23,467 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 09:50:23,468 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 09:50:23,469 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 09:50:23,469 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 09:50:23,470 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 09:50:23,471 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 09:50:23,471 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 09:50:23,471 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 09:50:23,472 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 09:50:23,472 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 09:50:23,473 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 09:50:23,474 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_416b7004-04b8-48b2-8d91-e0cbc88e2d63/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2019-11-20 09:50:23,486 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 09:50:23,487 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 09:50:23,488 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 09:50:23,488 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 09:50:23,488 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 09:50:23,488 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 09:50:23,489 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 09:50:23,489 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-20 09:50:23,489 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 09:50:23,489 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 09:50:23,489 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 09:50:23,490 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-20 09:50:23,490 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-20 09:50:23,490 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-20 09:50:23,490 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 09:50:23,490 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-20 09:50:23,491 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-20 09:50:23,491 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 09:50:23,491 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 09:50:23,491 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 09:50:23,491 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 09:50:23,491 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 09:50:23,492 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 09:50:23,492 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 09:50:23,492 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 09:50:23,492 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 09:50:23,493 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-20 09:50:23,493 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-20 09:50:23,493 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-20 09:50:23,493 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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-vcloud-master/worker/run_dir_416b7004-04b8-48b2-8d91-e0cbc88e2d63/bin/uautomizer 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 valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 72d82df7d97aedab3c94a3eb173a5c41df708a8b [2019-11-20 09:50:23,662 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 09:50:23,672 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 09:50:23,675 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 09:50:23,677 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 09:50:23,677 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 09:50:23,678 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_416b7004-04b8-48b2-8d91-e0cbc88e2d63/bin/uautomizer/../../sv-benchmarks/c/ldv-memsafety/memleaks_test19-1.i [2019-11-20 09:50:23,745 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_416b7004-04b8-48b2-8d91-e0cbc88e2d63/bin/uautomizer/data/dc2ce0565/619a4169b1374857ab174326a57229ce/FLAGc82616b6b [2019-11-20 09:50:24,195 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 09:50:24,196 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_416b7004-04b8-48b2-8d91-e0cbc88e2d63/sv-benchmarks/c/ldv-memsafety/memleaks_test19-1.i [2019-11-20 09:50:24,211 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_416b7004-04b8-48b2-8d91-e0cbc88e2d63/bin/uautomizer/data/dc2ce0565/619a4169b1374857ab174326a57229ce/FLAGc82616b6b [2019-11-20 09:50:24,482 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_416b7004-04b8-48b2-8d91-e0cbc88e2d63/bin/uautomizer/data/dc2ce0565/619a4169b1374857ab174326a57229ce [2019-11-20 09:50:24,485 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 09:50:24,486 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-20 09:50:24,488 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 09:50:24,488 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 09:50:24,492 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 09:50:24,493 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:50:24" (1/1) ... [2019-11-20 09:50:24,496 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41acc3ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:50:24, skipping insertion in model container [2019-11-20 09:50:24,496 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:50:24" (1/1) ... [2019-11-20 09:50:24,503 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 09:50:24,551 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 09:50:25,082 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 09:50:25,102 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 09:50:25,163 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 09:50:25,257 INFO L192 MainTranslator]: Completed translation [2019-11-20 09:50:25,258 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:50:25 WrapperNode [2019-11-20 09:50:25,258 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 09:50:25,258 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 09:50:25,258 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 09:50:25,259 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 09:50:25,272 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:50:25" (1/1) ... [2019-11-20 09:50:25,272 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:50:25" (1/1) ... [2019-11-20 09:50:25,296 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:50:25" (1/1) ... [2019-11-20 09:50:25,297 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:50:25" (1/1) ... [2019-11-20 09:50:25,335 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:50:25" (1/1) ... [2019-11-20 09:50:25,344 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:50:25" (1/1) ... [2019-11-20 09:50:25,352 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:50:25" (1/1) ... [2019-11-20 09:50:25,377 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 09:50:25,378 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 09:50:25,378 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 09:50:25,390 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 09:50:25,391 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:50:25" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_416b7004-04b8-48b2-8d91-e0cbc88e2d63/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 09:50:25,477 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-20 09:50:25,477 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 09:50:25,478 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-11-20 09:50:25,478 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-11-20 09:50:25,479 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-11-20 09:50:25,479 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-11-20 09:50:25,479 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-11-20 09:50:25,479 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-11-20 09:50:25,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2019-11-20 09:50:25,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2019-11-20 09:50:25,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-11-20 09:50:25,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-11-20 09:50:25,481 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2019-11-20 09:50:25,481 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2019-11-20 09:50:25,481 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2019-11-20 09:50:25,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2019-11-20 09:50:25,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2019-11-20 09:50:25,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2019-11-20 09:50:25,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2019-11-20 09:50:25,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2019-11-20 09:50:25,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2019-11-20 09:50:25,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2019-11-20 09:50:25,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2019-11-20 09:50:25,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2019-11-20 09:50:25,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2019-11-20 09:50:25,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2019-11-20 09:50:25,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2019-11-20 09:50:25,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2019-11-20 09:50:25,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2019-11-20 09:50:25,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2019-11-20 09:50:25,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2019-11-20 09:50:25,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2019-11-20 09:50:25,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2019-11-20 09:50:25,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2019-11-20 09:50:25,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2019-11-20 09:50:25,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2019-11-20 09:50:25,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2019-11-20 09:50:25,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2019-11-20 09:50:25,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2019-11-20 09:50:25,487 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2019-11-20 09:50:25,487 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2019-11-20 09:50:25,487 INFO L138 BoogieDeclarations]: Found implementation of procedure f19 [2019-11-20 09:50:25,487 INFO L138 BoogieDeclarations]: Found implementation of procedure f19_undo [2019-11-20 09:50:25,487 INFO L138 BoogieDeclarations]: Found implementation of procedure g19 [2019-11-20 09:50:25,488 INFO L138 BoogieDeclarations]: Found implementation of procedure probe_19 [2019-11-20 09:50:25,489 INFO L138 BoogieDeclarations]: Found implementation of procedure disconnect_19 [2019-11-20 09:50:25,489 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2019-11-20 09:50:25,489 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-20 09:50:25,490 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-11-20 09:50:25,490 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-11-20 09:50:25,490 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-11-20 09:50:25,490 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-20 09:50:25,490 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-20 09:50:25,490 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-20 09:50:25,490 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-20 09:50:25,491 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-20 09:50:25,491 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-20 09:50:25,491 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-20 09:50:25,491 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-20 09:50:25,491 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-20 09:50:25,492 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-20 09:50:25,492 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-20 09:50:25,492 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-20 09:50:25,492 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-20 09:50:25,492 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-20 09:50:25,493 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-20 09:50:25,493 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-20 09:50:25,494 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-11-20 09:50:25,494 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-11-20 09:50:25,494 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-11-20 09:50:25,494 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-11-20 09:50:25,495 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-11-20 09:50:25,496 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-20 09:50:25,496 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-20 09:50:25,497 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-20 09:50:25,498 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-20 09:50:25,498 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-20 09:50:25,498 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-20 09:50:25,498 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-20 09:50:25,498 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-20 09:50:25,499 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-20 09:50:25,499 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-20 09:50:25,499 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-20 09:50:25,499 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-20 09:50:25,499 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-20 09:50:25,499 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-20 09:50:25,499 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-20 09:50:25,500 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-20 09:50:25,500 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-20 09:50:25,500 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-20 09:50:25,500 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-20 09:50:25,500 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-20 09:50:25,500 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-20 09:50:25,500 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-20 09:50:25,500 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-20 09:50:25,501 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-20 09:50:25,501 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-20 09:50:25,501 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-20 09:50:25,501 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-20 09:50:25,501 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-20 09:50:25,501 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-20 09:50:25,501 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-20 09:50:25,502 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-20 09:50:25,502 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-20 09:50:25,502 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-20 09:50:25,502 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-20 09:50:25,502 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-20 09:50:25,502 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-20 09:50:25,502 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-20 09:50:25,502 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-20 09:50:25,503 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-20 09:50:25,503 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-20 09:50:25,503 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-20 09:50:25,503 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-20 09:50:25,503 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-20 09:50:25,504 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-20 09:50:25,504 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-20 09:50:25,504 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-20 09:50:25,505 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-20 09:50:25,506 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-20 09:50:25,506 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-20 09:50:25,506 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-20 09:50:25,506 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-20 09:50:25,506 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-20 09:50:25,506 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-20 09:50:25,507 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-20 09:50:25,507 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-20 09:50:25,507 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-20 09:50:25,507 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-20 09:50:25,508 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-20 09:50:25,509 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-20 09:50:25,512 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-20 09:50:25,513 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-20 09:50:25,513 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-20 09:50:25,513 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-20 09:50:25,513 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-20 09:50:25,514 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-20 09:50:25,514 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-20 09:50:25,514 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-20 09:50:25,514 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-20 09:50:25,514 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-20 09:50:25,514 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-20 09:50:25,515 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-20 09:50:25,521 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-20 09:50:25,522 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-20 09:50:25,522 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-20 09:50:25,522 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-20 09:50:25,522 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-20 09:50:25,522 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-20 09:50:25,522 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-20 09:50:25,522 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-20 09:50:25,523 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-20 09:50:25,523 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-20 09:50:25,523 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-20 09:50:25,523 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-20 09:50:25,523 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-20 09:50:25,523 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-20 09:50:25,523 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-20 09:50:25,523 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-11-20 09:50:25,524 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-20 09:50:25,524 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-11-20 09:50:25,524 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2019-11-20 09:50:25,524 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2019-11-20 09:50:25,524 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-11-20 09:50:25,524 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-11-20 09:50:25,524 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-11-20 09:50:25,525 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-20 09:50:25,525 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-11-20 09:50:25,525 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-11-20 09:50:25,525 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2019-11-20 09:50:25,525 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-20 09:50:25,525 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2019-11-20 09:50:25,525 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2019-11-20 09:50:25,525 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2019-11-20 09:50:25,526 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-20 09:50:25,526 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2019-11-20 09:50:25,526 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2019-11-20 09:50:25,526 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2019-11-20 09:50:25,526 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2019-11-20 09:50:25,526 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-11-20 09:50:25,526 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2019-11-20 09:50:25,526 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 09:50:25,527 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2019-11-20 09:50:25,527 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2019-11-20 09:50:25,527 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2019-11-20 09:50:25,527 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2019-11-20 09:50:25,527 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2019-11-20 09:50:25,527 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-20 09:50:25,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-20 09:50:25,529 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2019-11-20 09:50:25,529 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2019-11-20 09:50:25,529 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-11-20 09:50:25,530 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2019-11-20 09:50:25,530 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2019-11-20 09:50:25,530 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2019-11-20 09:50:25,530 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2019-11-20 09:50:25,530 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2019-11-20 09:50:25,530 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2019-11-20 09:50:25,530 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2019-11-20 09:50:25,530 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2019-11-20 09:50:25,531 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2019-11-20 09:50:25,531 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2019-11-20 09:50:25,531 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2019-11-20 09:50:25,531 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-11-20 09:50:25,531 INFO L130 BoogieDeclarations]: Found specification of procedure f [2019-11-20 09:50:25,531 INFO L130 BoogieDeclarations]: Found specification of procedure g [2019-11-20 09:50:25,531 INFO L130 BoogieDeclarations]: Found specification of procedure f19 [2019-11-20 09:50:25,531 INFO L130 BoogieDeclarations]: Found specification of procedure f19_undo [2019-11-20 09:50:25,531 INFO L130 BoogieDeclarations]: Found specification of procedure g19 [2019-11-20 09:50:25,532 INFO L130 BoogieDeclarations]: Found specification of procedure probe_19 [2019-11-20 09:50:25,532 INFO L130 BoogieDeclarations]: Found specification of procedure disconnect_19 [2019-11-20 09:50:25,532 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2019-11-20 09:50:25,532 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 09:50:25,532 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-20 09:50:25,532 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-20 09:50:25,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-20 09:50:25,532 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 09:50:25,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-11-20 09:50:25,533 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-11-20 09:50:25,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2019-11-20 09:50:25,533 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2019-11-20 09:50:26,487 WARN L736 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-20 09:50:26,909 WARN L736 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-20 09:50:27,258 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 09:50:27,258 INFO L285 CfgBuilder]: Removed 1 assume(true) statements. [2019-11-20 09:50:27,260 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:50:27 BoogieIcfgContainer [2019-11-20 09:50:27,260 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 09:50:27,261 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 09:50:27,261 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 09:50:27,264 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 09:50:27,264 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 09:50:24" (1/3) ... [2019-11-20 09:50:27,265 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78c7c2c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:50:27, skipping insertion in model container [2019-11-20 09:50:27,265 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:50:25" (2/3) ... [2019-11-20 09:50:27,266 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78c7c2c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:50:27, skipping insertion in model container [2019-11-20 09:50:27,266 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:50:27" (3/3) ... [2019-11-20 09:50:27,267 INFO L109 eAbstractionObserver]: Analyzing ICFG memleaks_test19-1.i [2019-11-20 09:50:27,277 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 09:50:27,286 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 94 error locations. [2019-11-20 09:50:27,297 INFO L249 AbstractCegarLoop]: Starting to check reachability of 94 error locations. [2019-11-20 09:50:27,324 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 09:50:27,324 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-20 09:50:27,325 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 09:50:27,325 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 09:50:27,325 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 09:50:27,325 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 09:50:27,325 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 09:50:27,325 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 09:50:27,354 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states. [2019-11-20 09:50:27,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-20 09:50:27,361 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 09:50:27,361 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 09:50:27,362 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, disconnect_19Err4ASSERT_VIOLATIONMEMORY_FREE, disconnect_19Err0REQUIRES_VIOLATION, disconnect_19Err1REQUIRES_VIOLATION, disconnect_19Err3ASSERT_VIOLATIONMEMORY_FREE, disconnect_19Err2ASSERT_VIOLATIONMEMORY_FREE, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr3ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr2ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr0REQUIRES_VIOLATION, f19_undoErr4ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr1REQUIRES_VIOLATION, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, f19Err1REQUIRES_VIOLATION, f19Err0REQUIRES_VIOLATION, f19Err2REQUIRES_VIOLATION, f19Err3REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, probe_19Err0REQUIRES_VIOLATION, probe_19Err5REQUIRES_VIOLATION, probe_19Err8ASSERT_VIOLATIONMEMORY_FREE, probe_19Err1REQUIRES_VIOLATION, probe_19Err3REQUIRES_VIOLATION, probe_19Err7ASSERT_VIOLATIONMEMORY_FREE, probe_19Err2REQUIRES_VIOLATION, probe_19Err6ASSERT_VIOLATIONMEMORY_FREE, probe_19Err4REQUIRES_VIOLATION]=== [2019-11-20 09:50:27,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 09:50:27,367 INFO L82 PathProgramCache]: Analyzing trace with hash 1214079896, now seen corresponding path program 1 times [2019-11-20 09:50:27,379 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 09:50:27,379 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [2092360665] [2019-11-20 09:50:27,379 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_416b7004-04b8-48b2-8d91-e0cbc88e2d63/bin/uautomizer/cvc4 Starting monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 09:50:27,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 09:50:27,721 INFO L255 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-20 09:50:27,727 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 09:50:27,803 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-20 09:50:27,804 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 09:50:27,814 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 09:50:27,814 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 09:50:27,815 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-20 09:50:27,955 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 09:50:27,955 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 41 [2019-11-20 09:50:27,957 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 09:50:27,996 INFO L567 ElimStorePlain]: treesize reduction 14, result has 51.7 percent of original size [2019-11-20 09:50:27,998 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-20 09:50:27,998 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:19, output treesize:15 [2019-11-20 09:50:28,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 09:50:28,042 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 09:50:30,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 09:50:30,442 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2092360665] [2019-11-20 09:50:30,443 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 09:50:30,443 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 12 [2019-11-20 09:50:30,444 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585914725] [2019-11-20 09:50:30,452 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-11-20 09:50:30,453 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 09:50:30,467 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-11-20 09:50:30,469 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2019-11-20 09:50:30,471 INFO L87 Difference]: Start difference. First operand 161 states. Second operand 13 states. [2019-11-20 09:50:50,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 09:50:50,182 INFO L93 Difference]: Finished difference Result 158 states and 182 transitions. [2019-11-20 09:50:50,183 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-11-20 09:50:50,184 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 15 [2019-11-20 09:50:50,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 09:50:50,196 INFO L225 Difference]: With dead ends: 158 [2019-11-20 09:50:50,196 INFO L226 Difference]: Without dead ends: 155 [2019-11-20 09:50:50,198 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=81, Invalid=261, Unknown=0, NotChecked=0, Total=342 [2019-11-20 09:50:50,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2019-11-20 09:50:50,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 87. [2019-11-20 09:50:50,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2019-11-20 09:50:50,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 95 transitions. [2019-11-20 09:50:50,248 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 95 transitions. Word has length 15 [2019-11-20 09:50:50,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 09:50:50,249 INFO L462 AbstractCegarLoop]: Abstraction has 87 states and 95 transitions. [2019-11-20 09:50:50,249 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-11-20 09:50:50,249 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 95 transitions. [2019-11-20 09:50:50,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-20 09:50:50,251 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 09:50:50,251 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 09:50:50,456 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 09:50:50,457 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, disconnect_19Err4ASSERT_VIOLATIONMEMORY_FREE, disconnect_19Err0REQUIRES_VIOLATION, disconnect_19Err1REQUIRES_VIOLATION, disconnect_19Err3ASSERT_VIOLATIONMEMORY_FREE, disconnect_19Err2ASSERT_VIOLATIONMEMORY_FREE, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr3ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr2ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr0REQUIRES_VIOLATION, f19_undoErr4ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr1REQUIRES_VIOLATION, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, f19Err1REQUIRES_VIOLATION, f19Err0REQUIRES_VIOLATION, f19Err2REQUIRES_VIOLATION, f19Err3REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, probe_19Err0REQUIRES_VIOLATION, probe_19Err5REQUIRES_VIOLATION, probe_19Err8ASSERT_VIOLATIONMEMORY_FREE, probe_19Err1REQUIRES_VIOLATION, probe_19Err3REQUIRES_VIOLATION, probe_19Err7ASSERT_VIOLATIONMEMORY_FREE, probe_19Err2REQUIRES_VIOLATION, probe_19Err6ASSERT_VIOLATIONMEMORY_FREE, probe_19Err4REQUIRES_VIOLATION]=== [2019-11-20 09:50:50,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 09:50:50,457 INFO L82 PathProgramCache]: Analyzing trace with hash 1214079897, now seen corresponding path program 1 times [2019-11-20 09:50:50,458 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 09:50:50,458 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1742854957] [2019-11-20 09:50:50,458 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_416b7004-04b8-48b2-8d91-e0cbc88e2d63/bin/uautomizer/cvc4 Starting monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 09:50:50,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 09:50:50,730 INFO L255 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 18 conjunts are in the unsatisfiable core [2019-11-20 09:50:50,732 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 09:50:50,745 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-20 09:50:50,746 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 09:50:50,756 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 09:50:50,760 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-20 09:50:50,760 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-20 09:50:50,769 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 09:50:50,770 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 09:50:50,770 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2019-11-20 09:50:52,917 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 09:50:52,918 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2019-11-20 09:50:52,919 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 09:50:52,941 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 09:50:52,964 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 09:50:52,965 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 15 [2019-11-20 09:50:52,965 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-20 09:50:52,986 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 09:50:52,987 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 09:50:52,988 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:27, output treesize:9 [2019-11-20 09:50:53,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 09:50:53,030 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 09:50:53,124 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-20 09:50:55,296 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 09:50:55,297 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-20 09:50:55,297 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 09:50:55,299 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 09:50:55,301 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 09:50:55,304 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-20 09:50:55,305 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 09:50:55,307 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 09:50:56,490 WARN L191 SmtUtils]: Spent 690.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 34 [2019-11-20 09:50:56,498 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 09:51:03,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 09:51:03,136 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1742854957] [2019-11-20 09:51:03,136 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 09:51:03,136 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 13 [2019-11-20 09:51:03,136 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568461784] [2019-11-20 09:51:03,138 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-11-20 09:51:03,138 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 09:51:03,138 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-11-20 09:51:03,138 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=146, Unknown=3, NotChecked=0, Total=182 [2019-11-20 09:51:03,139 INFO L87 Difference]: Start difference. First operand 87 states and 95 transitions. Second operand 14 states. [2019-11-20 09:51:32,508 WARN L191 SmtUtils]: Spent 8.07 s on a formula simplification that was a NOOP. DAG size: 44 [2019-11-20 09:52:05,843 WARN L191 SmtUtils]: Spent 2.01 s on a formula simplification that was a NOOP. DAG size: 16 [2019-11-20 09:53:53,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 09:53:53,711 INFO L93 Difference]: Finished difference Result 161 states and 188 transitions. [2019-11-20 09:53:53,711 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-11-20 09:53:53,711 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 15 [2019-11-20 09:53:53,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 09:53:53,714 INFO L225 Difference]: With dead ends: 161 [2019-11-20 09:53:53,714 INFO L226 Difference]: Without dead ends: 161 [2019-11-20 09:53:53,715 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 29.2s TimeCoverageRelationStatistics Valid=114, Invalid=389, Unknown=3, NotChecked=0, Total=506 [2019-11-20 09:53:53,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2019-11-20 09:53:53,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 84. [2019-11-20 09:53:53,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2019-11-20 09:53:53,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 91 transitions. [2019-11-20 09:53:53,727 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 91 transitions. Word has length 15 [2019-11-20 09:53:53,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 09:53:53,728 INFO L462 AbstractCegarLoop]: Abstraction has 84 states and 91 transitions. [2019-11-20 09:53:53,728 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-11-20 09:53:53,728 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 91 transitions. [2019-11-20 09:53:53,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-11-20 09:53:53,729 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 09:53:53,729 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 09:53:53,929 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 09:53:53,930 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, disconnect_19Err4ASSERT_VIOLATIONMEMORY_FREE, disconnect_19Err0REQUIRES_VIOLATION, disconnect_19Err1REQUIRES_VIOLATION, disconnect_19Err3ASSERT_VIOLATIONMEMORY_FREE, disconnect_19Err2ASSERT_VIOLATIONMEMORY_FREE, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr3ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr2ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr0REQUIRES_VIOLATION, f19_undoErr4ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr1REQUIRES_VIOLATION, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, f19Err1REQUIRES_VIOLATION, f19Err0REQUIRES_VIOLATION, f19Err2REQUIRES_VIOLATION, f19Err3REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, probe_19Err0REQUIRES_VIOLATION, probe_19Err5REQUIRES_VIOLATION, probe_19Err8ASSERT_VIOLATIONMEMORY_FREE, probe_19Err1REQUIRES_VIOLATION, probe_19Err3REQUIRES_VIOLATION, probe_19Err7ASSERT_VIOLATIONMEMORY_FREE, probe_19Err2REQUIRES_VIOLATION, probe_19Err6ASSERT_VIOLATIONMEMORY_FREE, probe_19Err4REQUIRES_VIOLATION]=== [2019-11-20 09:53:53,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 09:53:53,930 INFO L82 PathProgramCache]: Analyzing trace with hash 1414127168, now seen corresponding path program 1 times [2019-11-20 09:53:53,931 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 09:53:53,931 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [607247997] [2019-11-20 09:53:53,931 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_416b7004-04b8-48b2-8d91-e0cbc88e2d63/bin/uautomizer/cvc4 Starting monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 09:53:54,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 09:53:54,202 INFO L255 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 12 conjunts are in the unsatisfiable core [2019-11-20 09:53:54,203 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 09:53:54,281 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 09:53:54,282 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 41 [2019-11-20 09:53:54,283 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 09:53:54,315 INFO L567 ElimStorePlain]: treesize reduction 14, result has 51.7 percent of original size [2019-11-20 09:53:54,315 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-20 09:53:54,316 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:19, output treesize:15 [2019-11-20 09:53:54,351 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 09:53:54,351 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 09:53:54,999 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 09:53:54,999 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 30 [2019-11-20 09:53:55,000 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 09:53:55,000 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 09:53:55,001 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 09:53:55,001 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:23, output treesize:1 [2019-11-20 09:53:55,010 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 09:53:55,011 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [607247997] [2019-11-20 09:53:55,011 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 09:53:55,011 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 12 [2019-11-20 09:53:55,011 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916799555] [2019-11-20 09:53:55,011 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-11-20 09:53:55,012 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 09:53:55,012 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-11-20 09:53:55,012 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2019-11-20 09:53:55,012 INFO L87 Difference]: Start difference. First operand 84 states and 91 transitions. Second operand 13 states. [2019-11-20 09:54:16,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 09:54:16,455 INFO L93 Difference]: Finished difference Result 143 states and 167 transitions. [2019-11-20 09:54:16,455 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-11-20 09:54:16,455 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 26 [2019-11-20 09:54:16,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 09:54:16,457 INFO L225 Difference]: With dead ends: 143 [2019-11-20 09:54:16,457 INFO L226 Difference]: Without dead ends: 143 [2019-11-20 09:54:16,458 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=77, Invalid=265, Unknown=0, NotChecked=0, Total=342 [2019-11-20 09:54:16,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2019-11-20 09:54:16,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 82. [2019-11-20 09:54:16,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2019-11-20 09:54:16,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 89 transitions. [2019-11-20 09:54:16,470 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 89 transitions. Word has length 26 [2019-11-20 09:54:16,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 09:54:16,470 INFO L462 AbstractCegarLoop]: Abstraction has 82 states and 89 transitions. [2019-11-20 09:54:16,470 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-11-20 09:54:16,471 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 89 transitions. [2019-11-20 09:54:16,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-11-20 09:54:16,472 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 09:54:16,472 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 09:54:16,675 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 09:54:16,675 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, disconnect_19Err4ASSERT_VIOLATIONMEMORY_FREE, disconnect_19Err0REQUIRES_VIOLATION, disconnect_19Err1REQUIRES_VIOLATION, disconnect_19Err3ASSERT_VIOLATIONMEMORY_FREE, disconnect_19Err2ASSERT_VIOLATIONMEMORY_FREE, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr3ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr2ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr0REQUIRES_VIOLATION, f19_undoErr4ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr1REQUIRES_VIOLATION, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, f19Err1REQUIRES_VIOLATION, f19Err0REQUIRES_VIOLATION, f19Err2REQUIRES_VIOLATION, f19Err3REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, probe_19Err0REQUIRES_VIOLATION, probe_19Err5REQUIRES_VIOLATION, probe_19Err8ASSERT_VIOLATIONMEMORY_FREE, probe_19Err1REQUIRES_VIOLATION, probe_19Err3REQUIRES_VIOLATION, probe_19Err7ASSERT_VIOLATIONMEMORY_FREE, probe_19Err2REQUIRES_VIOLATION, probe_19Err6ASSERT_VIOLATIONMEMORY_FREE, probe_19Err4REQUIRES_VIOLATION]=== [2019-11-20 09:54:16,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 09:54:16,676 INFO L82 PathProgramCache]: Analyzing trace with hash 1414127169, now seen corresponding path program 1 times [2019-11-20 09:54:16,676 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 09:54:16,676 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [269352071] [2019-11-20 09:54:16,676 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_416b7004-04b8-48b2-8d91-e0cbc88e2d63/bin/uautomizer/cvc4 Starting monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 09:54:16,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 09:54:16,941 INFO L255 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 33 conjunts are in the unsatisfiable core [2019-11-20 09:54:16,943 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 09:54:16,950 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-20 09:54:16,951 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 09:54:16,969 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 09:54:16,977 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-20 09:54:16,978 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-20 09:54:16,992 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 09:54:16,992 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 09:54:16,992 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2019-11-20 09:54:19,113 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 09:54:19,114 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2019-11-20 09:54:19,114 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 09:54:19,134 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 09:54:19,145 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 09:54:19,146 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 17 [2019-11-20 09:54:19,146 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-20 09:54:19,177 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 09:54:19,177 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 09:54:19,177 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:11 [2019-11-20 09:54:19,254 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 09:54:19,255 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2019-11-20 09:54:19,255 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 09:54:19,267 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 09:54:19,275 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 09:54:19,275 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 17 [2019-11-20 09:54:19,276 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-20 09:54:19,289 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 09:54:19,289 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 09:54:19,289 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:11 [2019-11-20 09:54:19,311 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-11-20 09:54:19,311 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 09:54:19,410 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-20 09:54:21,539 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-20 09:54:21,539 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 09:54:21,540 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 09:54:21,541 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 09:54:21,541 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 09:54:21,542 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 09:54:21,544 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 09:54:21,544 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 09:54:21,545 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 09:54:22,722 WARN L191 SmtUtils]: Spent 870.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 32 [2019-11-20 09:54:22,725 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 09:54:30,127 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-20 09:54:30,162 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 09:54:30,162 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 22 [2019-11-20 09:54:30,163 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 09:54:30,178 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 09:54:30,178 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 20 [2019-11-20 09:54:30,179 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-20 09:54:30,194 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 09:54:30,194 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 27 [2019-11-20 09:54:30,195 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-11-20 09:54:30,228 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 09:54:30,229 INFO L496 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 3 xjuncts. [2019-11-20 09:54:30,229 INFO L221 ElimStorePlain]: Needed 4 recursive calls to eliminate 5 variables, input treesize:58, output treesize:23 [2019-11-20 09:54:30,404 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-20 09:54:32,594 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-20 09:54:32,595 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 09:54:32,596 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 09:54:32,597 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 09:54:32,597 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 09:54:32,598 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 09:54:32,599 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 09:54:32,600 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 09:54:32,600 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 09:54:44,081 WARN L191 SmtUtils]: Spent 2.54 s on a formula simplification. DAG size of input: 61 DAG size of output: 36 [2019-11-20 09:54:44,086 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 09:54:57,744 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 2 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 09:54:57,745 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [269352071] [2019-11-20 09:54:57,746 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-20 09:54:57,746 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [12] total 21 [2019-11-20 09:54:57,746 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638452450] [2019-11-20 09:54:57,747 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-11-20 09:54:57,747 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 09:54:57,747 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-11-20 09:54:57,747 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=397, Unknown=8, NotChecked=0, Total=462 [2019-11-20 09:54:57,748 INFO L87 Difference]: Start difference. First operand 82 states and 89 transitions. Second operand 11 states. [2019-11-20 09:55:26,411 WARN L191 SmtUtils]: Spent 2.01 s on a formula simplification that was a NOOP. DAG size: 16 [2019-11-20 09:56:25,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 09:56:25,636 INFO L93 Difference]: Finished difference Result 143 states and 168 transitions. [2019-11-20 09:56:25,637 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-11-20 09:56:25,637 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 26 [2019-11-20 09:56:25,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 09:56:25,638 INFO L225 Difference]: With dead ends: 143 [2019-11-20 09:56:25,639 INFO L226 Difference]: Without dead ends: 143 [2019-11-20 09:56:25,639 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 30 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 46.8s TimeCoverageRelationStatistics Valid=163, Invalid=884, Unknown=9, NotChecked=0, Total=1056 [2019-11-20 09:56:25,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2019-11-20 09:56:25,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 80. [2019-11-20 09:56:25,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2019-11-20 09:56:25,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 87 transitions. [2019-11-20 09:56:25,657 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 87 transitions. Word has length 26 [2019-11-20 09:56:25,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 09:56:25,657 INFO L462 AbstractCegarLoop]: Abstraction has 80 states and 87 transitions. [2019-11-20 09:56:25,657 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-11-20 09:56:25,657 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 87 transitions. [2019-11-20 09:56:25,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-11-20 09:56:25,658 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 09:56:25,658 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 09:56:25,869 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 09:56:25,870 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, disconnect_19Err4ASSERT_VIOLATIONMEMORY_FREE, disconnect_19Err0REQUIRES_VIOLATION, disconnect_19Err1REQUIRES_VIOLATION, disconnect_19Err3ASSERT_VIOLATIONMEMORY_FREE, disconnect_19Err2ASSERT_VIOLATIONMEMORY_FREE, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr3ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr2ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr0REQUIRES_VIOLATION, f19_undoErr4ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr1REQUIRES_VIOLATION, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, f19Err1REQUIRES_VIOLATION, f19Err0REQUIRES_VIOLATION, f19Err2REQUIRES_VIOLATION, f19Err3REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, probe_19Err0REQUIRES_VIOLATION, probe_19Err5REQUIRES_VIOLATION, probe_19Err8ASSERT_VIOLATIONMEMORY_FREE, probe_19Err1REQUIRES_VIOLATION, probe_19Err3REQUIRES_VIOLATION, probe_19Err7ASSERT_VIOLATIONMEMORY_FREE, probe_19Err2REQUIRES_VIOLATION, probe_19Err6ASSERT_VIOLATIONMEMORY_FREE, probe_19Err4REQUIRES_VIOLATION]=== [2019-11-20 09:56:25,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 09:56:25,870 INFO L82 PathProgramCache]: Analyzing trace with hash -954694802, now seen corresponding path program 1 times [2019-11-20 09:56:25,870 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 09:56:25,871 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1418629936] [2019-11-20 09:56:25,871 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_416b7004-04b8-48b2-8d91-e0cbc88e2d63/bin/uautomizer/cvc4 Starting monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 09:56:26,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 09:56:26,072 INFO L255 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-20 09:56:26,074 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 09:56:26,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 09:56:26,112 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 09:56:26,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 09:56:26,191 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1418629936] [2019-11-20 09:56:26,191 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 09:56:26,191 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2019-11-20 09:56:26,191 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065512867] [2019-11-20 09:56:26,191 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-20 09:56:26,192 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 09:56:26,192 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-20 09:56:26,192 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2019-11-20 09:56:26,192 INFO L87 Difference]: Start difference. First operand 80 states and 87 transitions. Second operand 10 states. [2019-11-20 09:56:26,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 09:56:26,263 INFO L93 Difference]: Finished difference Result 95 states and 102 transitions. [2019-11-20 09:56:26,264 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-20 09:56:26,264 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 26 [2019-11-20 09:56:26,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 09:56:26,265 INFO L225 Difference]: With dead ends: 95 [2019-11-20 09:56:26,265 INFO L226 Difference]: Without dead ends: 95 [2019-11-20 09:56:26,265 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2019-11-20 09:56:26,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2019-11-20 09:56:26,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 84. [2019-11-20 09:56:26,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2019-11-20 09:56:26,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 91 transitions. [2019-11-20 09:56:26,283 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 91 transitions. Word has length 26 [2019-11-20 09:56:26,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 09:56:26,283 INFO L462 AbstractCegarLoop]: Abstraction has 84 states and 91 transitions. [2019-11-20 09:56:26,284 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-20 09:56:26,284 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 91 transitions. [2019-11-20 09:56:26,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-11-20 09:56:26,285 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 09:56:26,285 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 09:56:26,487 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 09:56:26,488 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, disconnect_19Err4ASSERT_VIOLATIONMEMORY_FREE, disconnect_19Err0REQUIRES_VIOLATION, disconnect_19Err1REQUIRES_VIOLATION, disconnect_19Err3ASSERT_VIOLATIONMEMORY_FREE, disconnect_19Err2ASSERT_VIOLATIONMEMORY_FREE, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr3ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr2ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr0REQUIRES_VIOLATION, f19_undoErr4ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr1REQUIRES_VIOLATION, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, f19Err1REQUIRES_VIOLATION, f19Err0REQUIRES_VIOLATION, f19Err2REQUIRES_VIOLATION, f19Err3REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, probe_19Err0REQUIRES_VIOLATION, probe_19Err5REQUIRES_VIOLATION, probe_19Err8ASSERT_VIOLATIONMEMORY_FREE, probe_19Err1REQUIRES_VIOLATION, probe_19Err3REQUIRES_VIOLATION, probe_19Err7ASSERT_VIOLATIONMEMORY_FREE, probe_19Err2REQUIRES_VIOLATION, probe_19Err6ASSERT_VIOLATIONMEMORY_FREE, probe_19Err4REQUIRES_VIOLATION]=== [2019-11-20 09:56:26,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 09:56:26,488 INFO L82 PathProgramCache]: Analyzing trace with hash 469818757, now seen corresponding path program 1 times [2019-11-20 09:56:26,488 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 09:56:26,488 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1211499285] [2019-11-20 09:56:26,488 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_416b7004-04b8-48b2-8d91-e0cbc88e2d63/bin/uautomizer/cvc4 Starting monitored process 7 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 09:56:26,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 09:56:26,682 INFO L255 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-20 09:56:26,683 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 09:56:26,697 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2019-11-20 09:56:26,697 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 09:56:26,703 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 09:56:26,704 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 09:56:26,704 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:18, output treesize:10 [2019-11-20 09:56:26,721 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2019-11-20 09:56:26,721 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 09:56:26,723 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 09:56:26,724 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 09:56:26,724 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:20, output treesize:4 [2019-11-20 09:56:26,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 09:56:26,733 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 09:56:26,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 09:56:26,835 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1211499285] [2019-11-20 09:56:26,835 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 09:56:26,835 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2019-11-20 09:56:26,836 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855066273] [2019-11-20 09:56:26,836 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-20 09:56:26,836 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 09:56:26,836 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-20 09:56:26,837 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-20 09:56:26,837 INFO L87 Difference]: Start difference. First operand 84 states and 91 transitions. Second operand 6 states. [2019-11-20 09:56:26,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 09:56:26,941 INFO L93 Difference]: Finished difference Result 91 states and 100 transitions. [2019-11-20 09:56:26,942 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-20 09:56:26,942 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 27 [2019-11-20 09:56:26,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 09:56:26,943 INFO L225 Difference]: With dead ends: 91 [2019-11-20 09:56:26,943 INFO L226 Difference]: Without dead ends: 91 [2019-11-20 09:56:26,943 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2019-11-20 09:56:26,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2019-11-20 09:56:26,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 90. [2019-11-20 09:56:26,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2019-11-20 09:56:26,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 98 transitions. [2019-11-20 09:56:26,950 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 98 transitions. Word has length 27 [2019-11-20 09:56:26,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 09:56:26,950 INFO L462 AbstractCegarLoop]: Abstraction has 90 states and 98 transitions. [2019-11-20 09:56:26,950 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-20 09:56:26,951 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 98 transitions. [2019-11-20 09:56:26,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-11-20 09:56:26,952 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 09:56:26,952 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 09:56:27,153 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 09:56:27,153 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, disconnect_19Err4ASSERT_VIOLATIONMEMORY_FREE, disconnect_19Err0REQUIRES_VIOLATION, disconnect_19Err1REQUIRES_VIOLATION, disconnect_19Err3ASSERT_VIOLATIONMEMORY_FREE, disconnect_19Err2ASSERT_VIOLATIONMEMORY_FREE, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr3ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr2ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr0REQUIRES_VIOLATION, f19_undoErr4ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr1REQUIRES_VIOLATION, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, f19Err1REQUIRES_VIOLATION, f19Err0REQUIRES_VIOLATION, f19Err2REQUIRES_VIOLATION, f19Err3REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, probe_19Err0REQUIRES_VIOLATION, probe_19Err5REQUIRES_VIOLATION, probe_19Err8ASSERT_VIOLATIONMEMORY_FREE, probe_19Err1REQUIRES_VIOLATION, probe_19Err3REQUIRES_VIOLATION, probe_19Err7ASSERT_VIOLATIONMEMORY_FREE, probe_19Err2REQUIRES_VIOLATION, probe_19Err6ASSERT_VIOLATIONMEMORY_FREE, probe_19Err4REQUIRES_VIOLATION]=== [2019-11-20 09:56:27,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 09:56:27,153 INFO L82 PathProgramCache]: Analyzing trace with hash -40715420, now seen corresponding path program 1 times [2019-11-20 09:56:27,154 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 09:56:27,154 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1087373215] [2019-11-20 09:56:27,154 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_416b7004-04b8-48b2-8d91-e0cbc88e2d63/bin/uautomizer/cvc4 Starting monitored process 8 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 09:56:27,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 09:56:27,367 INFO L255 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 14 conjunts are in the unsatisfiable core [2019-11-20 09:56:27,368 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 09:56:27,381 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 09:56:27,382 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 37 [2019-11-20 09:56:27,382 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 09:56:27,397 INFO L567 ElimStorePlain]: treesize reduction 10, result has 60.0 percent of original size [2019-11-20 09:56:27,398 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 09:56:27,398 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-20 09:56:27,398 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:18, output treesize:15 [2019-11-20 09:56:27,398 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 09:56:27,403 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 09:56:27,407 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 09:56:27,411 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 09:56:33,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 09:56:33,486 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 09:56:37,821 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 09:56:37,822 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: Alternating quantifiers not yet supported at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:271) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:253) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.eliminateOne(ElimStorePlain.java:553) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:466) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.startRecursiveElimination(ElimStorePlain.java:216) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.elim(PartialQuantifierElimination.java:306) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.tryToEliminate(PartialQuantifierElimination.java:102) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:246) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:440) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeBackwardSequence(IterativePredicateTransformer.java:419) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:291) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:334) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:177) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:242) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:166) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:463) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:333) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:171) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:123) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-11-20 09:56:37,825 INFO L168 Benchmark]: Toolchain (without parser) took 373338.67 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 165.7 MB). Free memory was 940.8 MB in the beginning and 948.6 MB in the end (delta: -7.9 MB). Peak memory consumption was 157.8 MB. Max. memory is 11.5 GB. [2019-11-20 09:56:37,825 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 09:56:37,825 INFO L168 Benchmark]: CACSL2BoogieTranslator took 770.23 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 940.8 MB in the beginning and 1.1 GB in the end (delta: -164.9 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. [2019-11-20 09:56:37,826 INFO L168 Benchmark]: Boogie Preprocessor took 119.03 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-20 09:56:37,826 INFO L168 Benchmark]: RCFGBuilder took 1882.38 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 980.3 MB in the end (delta: 120.0 MB). Peak memory consumption was 120.0 MB. Max. memory is 11.5 GB. [2019-11-20 09:56:37,826 INFO L168 Benchmark]: TraceAbstraction took 370562.85 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 21.0 MB). Free memory was 980.3 MB in the beginning and 948.6 MB in the end (delta: 31.6 MB). Peak memory consumption was 52.6 MB. Max. memory is 11.5 GB. [2019-11-20 09:56:37,828 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 770.23 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 940.8 MB in the beginning and 1.1 GB in the end (delta: -164.9 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 119.03 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1882.38 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 980.3 MB in the end (delta: 120.0 MB). Peak memory consumption was 120.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 370562.85 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 21.0 MB). Free memory was 980.3 MB in the beginning and 948.6 MB in the end (delta: 31.6 MB). Peak memory consumption was 52.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: Alternating quantifiers not yet supported de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: Alternating quantifiers not yet supported: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:271) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...