./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test17_1-1.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_7cec9265-6a5f-4a91-b8db-ee613b0346e0/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_7cec9265-6a5f-4a91-b8db-ee613b0346e0/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_7cec9265-6a5f-4a91-b8db-ee613b0346e0/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_7cec9265-6a5f-4a91-b8db-ee613b0346e0/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test17_1-1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_7cec9265-6a5f-4a91-b8db-ee613b0346e0/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_7cec9265-6a5f-4a91-b8db-ee613b0346e0/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 85051d52521692aaf1a0de9e5f8f895724c83314 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 04:54:35,383 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 04:54:35,385 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 04:54:35,395 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 04:54:35,395 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 04:54:35,396 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 04:54:35,398 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 04:54:35,399 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 04:54:35,401 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 04:54:35,402 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 04:54:35,403 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 04:54:35,404 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 04:54:35,405 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 04:54:35,406 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 04:54:35,406 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 04:54:35,407 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 04:54:35,408 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 04:54:35,409 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 04:54:35,411 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 04:54:35,413 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 04:54:35,414 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 04:54:35,415 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 04:54:35,416 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 04:54:35,417 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 04:54:35,420 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 04:54:35,420 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 04:54:35,421 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 04:54:35,421 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 04:54:35,422 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 04:54:35,423 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 04:54:35,423 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 04:54:35,424 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 04:54:35,425 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 04:54:35,425 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 04:54:35,426 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 04:54:35,427 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 04:54:35,427 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 04:54:35,427 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 04:54:35,428 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 04:54:35,429 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 04:54:35,429 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 04:54:35,430 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_7cec9265-6a5f-4a91-b8db-ee613b0346e0/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2019-11-20 04:54:35,442 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 04:54:35,442 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 04:54:35,443 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 04:54:35,443 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 04:54:35,444 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 04:54:35,444 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 04:54:35,444 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 04:54:35,444 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-20 04:54:35,445 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 04:54:35,445 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 04:54:35,445 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 04:54:35,445 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-20 04:54:35,446 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-20 04:54:35,446 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-20 04:54:35,446 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 04:54:35,446 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-20 04:54:35,446 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-20 04:54:35,447 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 04:54:35,447 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 04:54:35,447 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 04:54:35,447 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 04:54:35,447 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 04:54:35,448 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 04:54:35,448 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 04:54:35,448 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 04:54:35,448 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 04:54:35,449 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-20 04:54:35,449 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-20 04:54:35,449 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-20 04:54:35,449 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_7cec9265-6a5f-4a91-b8db-ee613b0346e0/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 -> 85051d52521692aaf1a0de9e5f8f895724c83314 [2019-11-20 04:54:35,583 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 04:54:35,593 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 04:54:35,596 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 04:54:35,597 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 04:54:35,598 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 04:54:35,598 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_7cec9265-6a5f-4a91-b8db-ee613b0346e0/bin/uautomizer/../../sv-benchmarks/c/ldv-memsafety/memleaks_test17_1-1.i [2019-11-20 04:54:35,647 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7cec9265-6a5f-4a91-b8db-ee613b0346e0/bin/uautomizer/data/fd56959d2/413237e3355143fb9aac264ebf1accdb/FLAG5f4eedb76 [2019-11-20 04:54:36,152 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 04:54:36,153 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_7cec9265-6a5f-4a91-b8db-ee613b0346e0/sv-benchmarks/c/ldv-memsafety/memleaks_test17_1-1.i [2019-11-20 04:54:36,174 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7cec9265-6a5f-4a91-b8db-ee613b0346e0/bin/uautomizer/data/fd56959d2/413237e3355143fb9aac264ebf1accdb/FLAG5f4eedb76 [2019-11-20 04:54:36,672 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_7cec9265-6a5f-4a91-b8db-ee613b0346e0/bin/uautomizer/data/fd56959d2/413237e3355143fb9aac264ebf1accdb [2019-11-20 04:54:36,675 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 04:54:36,676 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-20 04:54:36,679 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 04:54:36,680 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 04:54:36,682 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 04:54:36,686 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 04:54:36" (1/1) ... [2019-11-20 04:54:36,688 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c1af24c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:54:36, skipping insertion in model container [2019-11-20 04:54:36,688 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 04:54:36" (1/1) ... [2019-11-20 04:54:36,694 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 04:54:36,742 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 04:54:37,142 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 04:54:37,167 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 04:54:37,223 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 04:54:37,307 INFO L192 MainTranslator]: Completed translation [2019-11-20 04:54:37,307 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:54:37 WrapperNode [2019-11-20 04:54:37,308 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 04:54:37,308 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 04:54:37,308 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 04:54:37,309 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 04:54:37,325 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:54:37" (1/1) ... [2019-11-20 04:54:37,325 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:54:37" (1/1) ... [2019-11-20 04:54:37,347 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:54:37" (1/1) ... [2019-11-20 04:54:37,347 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:54:37" (1/1) ... [2019-11-20 04:54:37,380 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:54:37" (1/1) ... [2019-11-20 04:54:37,399 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:54:37" (1/1) ... [2019-11-20 04:54:37,406 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:54:37" (1/1) ... [2019-11-20 04:54:37,417 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 04:54:37,418 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 04:54:37,418 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 04:54:37,418 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 04:54:37,419 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:54:37" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7cec9265-6a5f-4a91-b8db-ee613b0346e0/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 04:54:37,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-20 04:54:37,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 04:54:37,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-11-20 04:54:37,472 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-11-20 04:54:37,472 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-11-20 04:54:37,472 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-11-20 04:54:37,472 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-11-20 04:54:37,472 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-11-20 04:54:37,473 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2019-11-20 04:54:37,473 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2019-11-20 04:54:37,473 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-11-20 04:54:37,473 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-11-20 04:54:37,473 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2019-11-20 04:54:37,473 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2019-11-20 04:54:37,473 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2019-11-20 04:54:37,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2019-11-20 04:54:37,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2019-11-20 04:54:37,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2019-11-20 04:54:37,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2019-11-20 04:54:37,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2019-11-20 04:54:37,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2019-11-20 04:54:37,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2019-11-20 04:54:37,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2019-11-20 04:54:37,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2019-11-20 04:54:37,477 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2019-11-20 04:54:37,477 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2019-11-20 04:54:37,478 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2019-11-20 04:54:37,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2019-11-20 04:54:37,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2019-11-20 04:54:37,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2019-11-20 04:54:37,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2019-11-20 04:54:37,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2019-11-20 04:54:37,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2019-11-20 04:54:37,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2019-11-20 04:54:37,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2019-11-20 04:54:37,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2019-11-20 04:54:37,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2019-11-20 04:54:37,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2019-11-20 04:54:37,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2019-11-20 04:54:37,482 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2019-11-20 04:54:37,482 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2019-11-20 04:54:37,482 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_17 [2019-11-20 04:54:37,483 INFO L138 BoogieDeclarations]: Found implementation of procedure free_17 [2019-11-20 04:54:37,483 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2019-11-20 04:54:37,483 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-20 04:54:37,483 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-11-20 04:54:37,483 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-11-20 04:54:37,483 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-11-20 04:54:37,484 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-20 04:54:37,484 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-20 04:54:37,484 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-20 04:54:37,484 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-20 04:54:37,484 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-20 04:54:37,484 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-20 04:54:37,485 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-20 04:54:37,485 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-20 04:54:37,485 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-20 04:54:37,485 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-20 04:54:37,485 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-20 04:54:37,485 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-20 04:54:37,486 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-20 04:54:37,486 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-20 04:54:37,486 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-20 04:54:37,486 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-20 04:54:37,487 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-11-20 04:54:37,487 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-11-20 04:54:37,487 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-11-20 04:54:37,488 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-11-20 04:54:37,488 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-11-20 04:54:37,488 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-20 04:54:37,488 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-20 04:54:37,489 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-20 04:54:37,489 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-20 04:54:37,490 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-20 04:54:37,491 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-20 04:54:37,491 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-20 04:54:37,492 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-20 04:54:37,492 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-20 04:54:37,492 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-20 04:54:37,492 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-20 04:54:37,493 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-20 04:54:37,493 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-20 04:54:37,493 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-20 04:54:37,493 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-20 04:54:37,493 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-20 04:54:37,493 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-20 04:54:37,494 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-20 04:54:37,494 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-20 04:54:37,495 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-20 04:54:37,495 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-20 04:54:37,495 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-20 04:54:37,495 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-20 04:54:37,495 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-20 04:54:37,495 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-20 04:54:37,496 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-20 04:54:37,496 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-20 04:54:37,496 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-20 04:54:37,496 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-20 04:54:37,496 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-20 04:54:37,496 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-20 04:54:37,497 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-20 04:54:37,497 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-20 04:54:37,497 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-20 04:54:37,497 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-20 04:54:37,497 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-20 04:54:37,497 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-20 04:54:37,498 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-20 04:54:37,498 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-20 04:54:37,498 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-20 04:54:37,498 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-20 04:54:37,501 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-20 04:54:37,501 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-20 04:54:37,501 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-20 04:54:37,502 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-20 04:54:37,502 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-20 04:54:37,502 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-20 04:54:37,503 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-20 04:54:37,503 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-20 04:54:37,503 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-20 04:54:37,504 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-20 04:54:37,504 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-20 04:54:37,504 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-20 04:54:37,504 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-20 04:54:37,504 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-20 04:54:37,505 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-20 04:54:37,505 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-20 04:54:37,505 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-20 04:54:37,506 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-20 04:54:37,506 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-20 04:54:37,506 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-20 04:54:37,506 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-20 04:54:37,507 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-20 04:54:37,508 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-20 04:54:37,508 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-20 04:54:37,508 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-20 04:54:37,508 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-20 04:54:37,509 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-20 04:54:37,509 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-20 04:54:37,509 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-20 04:54:37,509 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-20 04:54:37,509 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-20 04:54:37,509 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-20 04:54:37,510 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-20 04:54:37,517 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-20 04:54:37,517 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-20 04:54:37,517 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-20 04:54:37,517 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-20 04:54:37,518 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-20 04:54:37,518 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-20 04:54:37,518 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-20 04:54:37,518 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-20 04:54:37,518 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-20 04:54:37,518 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-20 04:54:37,518 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-20 04:54:37,518 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-20 04:54:37,519 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-11-20 04:54:37,519 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-20 04:54:37,519 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-11-20 04:54:37,519 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2019-11-20 04:54:37,519 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2019-11-20 04:54:37,519 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-11-20 04:54:37,519 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-11-20 04:54:37,519 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-11-20 04:54:37,519 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-20 04:54:37,519 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-11-20 04:54:37,520 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-11-20 04:54:37,520 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2019-11-20 04:54:37,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-20 04:54:37,520 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2019-11-20 04:54:37,520 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2019-11-20 04:54:37,520 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2019-11-20 04:54:37,520 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-20 04:54:37,520 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2019-11-20 04:54:37,521 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2019-11-20 04:54:37,521 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2019-11-20 04:54:37,521 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2019-11-20 04:54:37,521 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-11-20 04:54:37,521 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2019-11-20 04:54:37,521 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 04:54:37,521 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2019-11-20 04:54:37,521 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2019-11-20 04:54:37,522 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2019-11-20 04:54:37,522 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2019-11-20 04:54:37,522 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2019-11-20 04:54:37,522 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-20 04:54:37,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-20 04:54:37,522 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2019-11-20 04:54:37,522 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2019-11-20 04:54:37,522 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-11-20 04:54:37,522 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2019-11-20 04:54:37,523 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2019-11-20 04:54:37,523 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2019-11-20 04:54:37,523 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2019-11-20 04:54:37,523 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2019-11-20 04:54:37,523 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2019-11-20 04:54:37,523 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2019-11-20 04:54:37,523 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2019-11-20 04:54:37,523 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2019-11-20 04:54:37,524 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2019-11-20 04:54:37,524 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2019-11-20 04:54:37,524 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-11-20 04:54:37,524 INFO L130 BoogieDeclarations]: Found specification of procedure f [2019-11-20 04:54:37,524 INFO L130 BoogieDeclarations]: Found specification of procedure g [2019-11-20 04:54:37,524 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_17 [2019-11-20 04:54:37,524 INFO L130 BoogieDeclarations]: Found specification of procedure free_17 [2019-11-20 04:54:37,524 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2019-11-20 04:54:37,525 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-20 04:54:37,525 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-20 04:54:37,525 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 04:54:37,525 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-20 04:54:37,525 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 04:54:37,525 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-11-20 04:54:37,525 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-11-20 04:54:37,525 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2019-11-20 04:54:37,525 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2019-11-20 04:54:38,060 WARN L736 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-20 04:54:38,563 WARN L736 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-20 04:54:39,131 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 04:54:39,133 INFO L285 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-20 04:54:39,135 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 04:54:39 BoogieIcfgContainer [2019-11-20 04:54:39,135 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 04:54:39,137 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 04:54:39,137 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 04:54:39,141 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 04:54:39,141 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 04:54:36" (1/3) ... [2019-11-20 04:54:39,142 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b4ad8a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 04:54:39, skipping insertion in model container [2019-11-20 04:54:39,142 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:54:37" (2/3) ... [2019-11-20 04:54:39,142 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b4ad8a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 04:54:39, skipping insertion in model container [2019-11-20 04:54:39,143 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 04:54:39" (3/3) ... [2019-11-20 04:54:39,144 INFO L109 eAbstractionObserver]: Analyzing ICFG memleaks_test17_1-1.i [2019-11-20 04:54:39,153 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 04:54:39,161 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 87 error locations. [2019-11-20 04:54:39,171 INFO L249 AbstractCegarLoop]: Starting to check reachability of 87 error locations. [2019-11-20 04:54:39,188 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 04:54:39,188 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-20 04:54:39,188 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 04:54:39,188 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 04:54:39,189 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 04:54:39,189 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 04:54:39,189 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 04:54:39,189 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 04:54:39,212 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states. [2019-11-20 04:54:39,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-20 04:54:39,221 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:54:39,221 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 04:54:39,222 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, 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, 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, __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, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 04:54:39,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:54:39,227 INFO L82 PathProgramCache]: Analyzing trace with hash 525282912, now seen corresponding path program 1 times [2019-11-20 04:54:39,237 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 04:54:39,238 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1579373803] [2019-11-20 04:54:39,238 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7cec9265-6a5f-4a91-b8db-ee613b0346e0/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 04:54:39,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:54:39,571 INFO L255 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-20 04:54:39,576 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:54:39,635 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 04:54:39,635 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 04:54:39,647 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 04:54:39,647 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 04:54:39,648 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-20 04:54:39,681 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 04:54:39,683 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 04:54:39,744 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 04:54:39,745 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1579373803] [2019-11-20 04:54:39,746 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 04:54:39,747 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-11-20 04:54:39,747 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31032043] [2019-11-20 04:54:39,752 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-20 04:54:39,752 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 04:54:39,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 04:54:39,766 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-20 04:54:39,768 INFO L87 Difference]: Start difference. First operand 141 states. Second operand 5 states. [2019-11-20 04:54:40,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:54:40,031 INFO L93 Difference]: Finished difference Result 81 states and 92 transitions. [2019-11-20 04:54:40,031 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 04:54:40,032 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2019-11-20 04:54:40,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 04:54:40,042 INFO L225 Difference]: With dead ends: 81 [2019-11-20 04:54:40,042 INFO L226 Difference]: Without dead ends: 78 [2019-11-20 04:54:40,044 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-20 04:54:40,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2019-11-20 04:54:40,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 74. [2019-11-20 04:54:40,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2019-11-20 04:54:40,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 85 transitions. [2019-11-20 04:54:40,086 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 85 transitions. Word has length 16 [2019-11-20 04:54:40,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 04:54:40,087 INFO L462 AbstractCegarLoop]: Abstraction has 74 states and 85 transitions. [2019-11-20 04:54:40,087 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-20 04:54:40,087 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 85 transitions. [2019-11-20 04:54:40,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-20 04:54:40,089 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:54:40,089 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 04:54:40,294 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 04:54:40,295 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, 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, 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, __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, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 04:54:40,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:54:40,295 INFO L82 PathProgramCache]: Analyzing trace with hash 525282913, now seen corresponding path program 1 times [2019-11-20 04:54:40,296 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 04:54:40,296 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [847177460] [2019-11-20 04:54:40,296 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7cec9265-6a5f-4a91-b8db-ee613b0346e0/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 04:54:40,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:54:40,588 INFO L255 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 13 conjunts are in the unsatisfiable core [2019-11-20 04:54:40,590 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:54:40,614 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 04:54:40,614 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 04:54:40,630 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 04:54:40,630 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 04:54:40,630 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-20 04:54:40,720 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 04:54:40,720 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 04:54:41,671 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 04:54:41,671 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [847177460] [2019-11-20 04:54:41,672 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 04:54:41,672 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 13 [2019-11-20 04:54:41,672 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130571276] [2019-11-20 04:54:41,673 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-11-20 04:54:41,673 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 04:54:41,674 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-11-20 04:54:41,674 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2019-11-20 04:54:41,674 INFO L87 Difference]: Start difference. First operand 74 states and 85 transitions. Second operand 14 states. [2019-11-20 04:54:42,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:54:42,775 INFO L93 Difference]: Finished difference Result 87 states and 102 transitions. [2019-11-20 04:54:42,776 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-20 04:54:42,776 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 16 [2019-11-20 04:54:42,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 04:54:42,778 INFO L225 Difference]: With dead ends: 87 [2019-11-20 04:54:42,778 INFO L226 Difference]: Without dead ends: 87 [2019-11-20 04:54:42,779 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 17 SyntacticMatches, 2 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=76, Invalid=304, Unknown=0, NotChecked=0, Total=380 [2019-11-20 04:54:42,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2019-11-20 04:54:42,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 79. [2019-11-20 04:54:42,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2019-11-20 04:54:42,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 91 transitions. [2019-11-20 04:54:42,790 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 91 transitions. Word has length 16 [2019-11-20 04:54:42,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 04:54:42,790 INFO L462 AbstractCegarLoop]: Abstraction has 79 states and 91 transitions. [2019-11-20 04:54:42,790 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-11-20 04:54:42,790 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 91 transitions. [2019-11-20 04:54:42,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-20 04:54:42,791 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:54:42,791 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 04:54:42,993 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 04:54:42,994 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, 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, 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, __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, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 04:54:42,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:54:42,994 INFO L82 PathProgramCache]: Analyzing trace with hash 1412786593, now seen corresponding path program 1 times [2019-11-20 04:54:42,995 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 04:54:42,995 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [939349722] [2019-11-20 04:54:42,995 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7cec9265-6a5f-4a91-b8db-ee613b0346e0/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 04:54:43,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:54:43,234 INFO L255 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-20 04:54:43,235 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:54:43,273 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 04:54:43,273 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 04:54:43,322 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 04:54:43,322 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [939349722] [2019-11-20 04:54:43,322 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 04:54:43,323 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-11-20 04:54:43,323 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804892700] [2019-11-20 04:54:43,323 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-20 04:54:43,323 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 04:54:43,323 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 04:54:43,323 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-20 04:54:43,323 INFO L87 Difference]: Start difference. First operand 79 states and 91 transitions. Second operand 5 states. [2019-11-20 04:54:43,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:54:43,360 INFO L93 Difference]: Finished difference Result 78 states and 87 transitions. [2019-11-20 04:54:43,362 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 04:54:43,362 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2019-11-20 04:54:43,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 04:54:43,363 INFO L225 Difference]: With dead ends: 78 [2019-11-20 04:54:43,363 INFO L226 Difference]: Without dead ends: 78 [2019-11-20 04:54:43,364 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-20 04:54:43,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2019-11-20 04:54:43,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 76. [2019-11-20 04:54:43,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2019-11-20 04:54:43,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 85 transitions. [2019-11-20 04:54:43,378 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 85 transitions. Word has length 16 [2019-11-20 04:54:43,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 04:54:43,378 INFO L462 AbstractCegarLoop]: Abstraction has 76 states and 85 transitions. [2019-11-20 04:54:43,378 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-20 04:54:43,378 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 85 transitions. [2019-11-20 04:54:43,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-20 04:54:43,384 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:54:43,384 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 04:54:43,588 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 04:54:43,588 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, 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, 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, __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, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 04:54:43,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:54:43,589 INFO L82 PathProgramCache]: Analyzing trace with hash -896115154, now seen corresponding path program 1 times [2019-11-20 04:54:43,589 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 04:54:43,589 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1762231522] [2019-11-20 04:54:43,590 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7cec9265-6a5f-4a91-b8db-ee613b0346e0/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 04:54:43,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:54:43,836 INFO L255 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-20 04:54:43,838 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:54:43,870 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 04:54:43,870 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 04:54:43,940 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 04:54:43,941 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1762231522] [2019-11-20 04:54:43,941 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 04:54:43,941 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-11-20 04:54:43,941 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344475857] [2019-11-20 04:54:43,942 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-20 04:54:43,942 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 04:54:43,942 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 04:54:43,942 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-20 04:54:43,943 INFO L87 Difference]: Start difference. First operand 76 states and 85 transitions. Second operand 5 states. [2019-11-20 04:54:44,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:54:44,002 INFO L93 Difference]: Finished difference Result 78 states and 86 transitions. [2019-11-20 04:54:44,003 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 04:54:44,003 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2019-11-20 04:54:44,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 04:54:44,004 INFO L225 Difference]: With dead ends: 78 [2019-11-20 04:54:44,004 INFO L226 Difference]: Without dead ends: 78 [2019-11-20 04:54:44,005 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-20 04:54:44,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2019-11-20 04:54:44,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 76. [2019-11-20 04:54:44,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2019-11-20 04:54:44,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 84 transitions. [2019-11-20 04:54:44,012 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 84 transitions. Word has length 17 [2019-11-20 04:54:44,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 04:54:44,013 INFO L462 AbstractCegarLoop]: Abstraction has 76 states and 84 transitions. [2019-11-20 04:54:44,013 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-20 04:54:44,014 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 84 transitions. [2019-11-20 04:54:44,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-20 04:54:44,015 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:54:44,015 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 04:54:44,218 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 04:54:44,218 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, 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, 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, __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, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 04:54:44,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:54:44,219 INFO L82 PathProgramCache]: Analyzing trace with hash 846695181, now seen corresponding path program 1 times [2019-11-20 04:54:44,219 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 04:54:44,219 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1165920888] [2019-11-20 04:54:44,219 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7cec9265-6a5f-4a91-b8db-ee613b0346e0/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 04:54:44,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:54:44,449 INFO L255 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-20 04:54:44,451 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:54:44,464 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 04:54:44,464 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 04:54:44,512 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 04:54:44,512 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1165920888] [2019-11-20 04:54:44,513 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 04:54:44,513 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-20 04:54:44,513 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441584615] [2019-11-20 04:54:44,513 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 04:54:44,513 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 04:54:44,513 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 04:54:44,514 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 04:54:44,514 INFO L87 Difference]: Start difference. First operand 76 states and 84 transitions. Second operand 3 states. [2019-11-20 04:54:44,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:54:44,640 INFO L93 Difference]: Finished difference Result 114 states and 127 transitions. [2019-11-20 04:54:44,640 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 04:54:44,640 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2019-11-20 04:54:44,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 04:54:44,641 INFO L225 Difference]: With dead ends: 114 [2019-11-20 04:54:44,642 INFO L226 Difference]: Without dead ends: 109 [2019-11-20 04:54:44,642 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 04:54:44,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2019-11-20 04:54:44,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 74. [2019-11-20 04:54:44,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2019-11-20 04:54:44,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 81 transitions. [2019-11-20 04:54:44,651 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 81 transitions. Word has length 17 [2019-11-20 04:54:44,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 04:54:44,651 INFO L462 AbstractCegarLoop]: Abstraction has 74 states and 81 transitions. [2019-11-20 04:54:44,651 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 04:54:44,652 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 81 transitions. [2019-11-20 04:54:44,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-20 04:54:44,652 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:54:44,653 INFO L410 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 04:54:44,856 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 04:54:44,856 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, 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, 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, __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, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 04:54:44,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:54:44,857 INFO L82 PathProgramCache]: Analyzing trace with hash 445572097, now seen corresponding path program 1 times [2019-11-20 04:54:44,857 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 04:54:44,857 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1236270804] [2019-11-20 04:54:44,857 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7cec9265-6a5f-4a91-b8db-ee613b0346e0/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 04:54:45,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:54:45,115 INFO L255 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 16 conjunts are in the unsatisfiable core [2019-11-20 04:54:45,116 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:54:45,136 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 04:54:45,136 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 04:54:45,152 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 04:54:45,152 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 04:54:45,153 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-20 04:54:45,300 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:54:45,300 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 04:54:46,232 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 04:54:47,034 WARN L191 SmtUtils]: Spent 652.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2019-11-20 04:54:47,374 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:54:47,374 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1236270804] [2019-11-20 04:54:47,375 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 04:54:47,375 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10] total 18 [2019-11-20 04:54:47,375 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880030310] [2019-11-20 04:54:47,376 INFO L442 AbstractCegarLoop]: Interpolant automaton has 19 states [2019-11-20 04:54:47,376 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 04:54:47,376 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2019-11-20 04:54:47,377 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2019-11-20 04:54:47,377 INFO L87 Difference]: Start difference. First operand 74 states and 81 transitions. Second operand 19 states. [2019-11-20 04:54:50,036 WARN L191 SmtUtils]: Spent 1.48 s on a formula simplification that was a NOOP. DAG size: 51 [2019-11-20 04:54:50,478 WARN L191 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 38 [2019-11-20 04:54:51,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:54:51,191 INFO L93 Difference]: Finished difference Result 91 states and 104 transitions. [2019-11-20 04:54:51,192 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-11-20 04:54:51,193 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 22 [2019-11-20 04:54:51,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 04:54:51,193 INFO L225 Difference]: With dead ends: 91 [2019-11-20 04:54:51,194 INFO L226 Difference]: Without dead ends: 91 [2019-11-20 04:54:51,194 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 23 SyntacticMatches, 3 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=165, Invalid=705, Unknown=0, NotChecked=0, Total=870 [2019-11-20 04:54:51,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2019-11-20 04:54:51,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 86. [2019-11-20 04:54:51,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2019-11-20 04:54:51,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 95 transitions. [2019-11-20 04:54:51,200 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 95 transitions. Word has length 22 [2019-11-20 04:54:51,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 04:54:51,201 INFO L462 AbstractCegarLoop]: Abstraction has 86 states and 95 transitions. [2019-11-20 04:54:51,201 INFO L463 AbstractCegarLoop]: Interpolant automaton has 19 states. [2019-11-20 04:54:51,201 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 95 transitions. [2019-11-20 04:54:51,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-11-20 04:54:51,202 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:54:51,202 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 04:54:51,403 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 04:54:51,403 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, 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, 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, __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, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 04:54:51,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:54:51,403 INFO L82 PathProgramCache]: Analyzing trace with hash -1352798049, now seen corresponding path program 1 times [2019-11-20 04:54:51,404 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 04:54:51,404 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [419681085] [2019-11-20 04:54:51,404 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7cec9265-6a5f-4a91-b8db-ee613b0346e0/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 04:54:51,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:54:51,671 INFO L255 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-20 04:54:51,673 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:54:51,727 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:54:51,728 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 04:54:51,856 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:54:51,856 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [419681085] [2019-11-20 04:54:51,856 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 04:54:51,856 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2019-11-20 04:54:51,856 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127429064] [2019-11-20 04:54:51,857 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-11-20 04:54:51,857 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 04:54:51,857 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-11-20 04:54:51,857 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2019-11-20 04:54:51,857 INFO L87 Difference]: Start difference. First operand 86 states and 95 transitions. Second operand 12 states. [2019-11-20 04:54:52,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:54:52,276 INFO L93 Difference]: Finished difference Result 92 states and 98 transitions. [2019-11-20 04:54:52,277 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-11-20 04:54:52,277 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 35 [2019-11-20 04:54:52,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 04:54:52,278 INFO L225 Difference]: With dead ends: 92 [2019-11-20 04:54:52,278 INFO L226 Difference]: Without dead ends: 92 [2019-11-20 04:54:52,278 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=94, Invalid=146, Unknown=0, NotChecked=0, Total=240 [2019-11-20 04:54:52,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2019-11-20 04:54:52,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 91. [2019-11-20 04:54:52,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2019-11-20 04:54:52,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 98 transitions. [2019-11-20 04:54:52,284 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 98 transitions. Word has length 35 [2019-11-20 04:54:52,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 04:54:52,284 INFO L462 AbstractCegarLoop]: Abstraction has 91 states and 98 transitions. [2019-11-20 04:54:52,284 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-11-20 04:54:52,284 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 98 transitions. [2019-11-20 04:54:52,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-11-20 04:54:52,285 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:54:52,285 INFO L410 BasicCegarLoop]: trace histogram [7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 04:54:52,488 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 04:54:52,489 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, 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, 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, __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, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 04:54:52,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:54:52,489 INFO L82 PathProgramCache]: Analyzing trace with hash 211035969, now seen corresponding path program 2 times [2019-11-20 04:54:52,489 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 04:54:52,489 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1189491152] [2019-11-20 04:54:52,490 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7cec9265-6a5f-4a91-b8db-ee613b0346e0/bin/uautomizer/cvc4 Starting monitored process 9 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 04:54:52,781 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-20 04:54:52,782 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 04:54:52,784 INFO L255 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 19 conjunts are in the unsatisfiable core [2019-11-20 04:54:52,785 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:54:52,807 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 04:54:52,807 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 04:54:52,813 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 04:54:52,814 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 04:54:52,814 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-20 04:54:53,105 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:54:53,106 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 04:54:55,348 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:54:55,348 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1189491152] [2019-11-20 04:54:55,349 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 04:54:55,349 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2019-11-20 04:54:55,349 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457631845] [2019-11-20 04:54:55,350 INFO L442 AbstractCegarLoop]: Interpolant automaton has 26 states [2019-11-20 04:54:55,350 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 04:54:55,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2019-11-20 04:54:55,351 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=539, Unknown=0, NotChecked=0, Total=650 [2019-11-20 04:54:55,351 INFO L87 Difference]: Start difference. First operand 91 states and 98 transitions. Second operand 26 states. [2019-11-20 04:54:58,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:54:58,487 INFO L93 Difference]: Finished difference Result 102 states and 113 transitions. [2019-11-20 04:54:58,488 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2019-11-20 04:54:58,489 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 34 [2019-11-20 04:54:58,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 04:54:58,490 INFO L225 Difference]: With dead ends: 102 [2019-11-20 04:54:58,490 INFO L226 Difference]: Without dead ends: 102 [2019-11-20 04:54:58,491 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 41 SyntacticMatches, 2 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 283 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=291, Invalid=1349, Unknown=0, NotChecked=0, Total=1640 [2019-11-20 04:54:58,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2019-11-20 04:54:58,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 98. [2019-11-20 04:54:58,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2019-11-20 04:54:58,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 106 transitions. [2019-11-20 04:54:58,498 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 106 transitions. Word has length 34 [2019-11-20 04:54:58,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 04:54:58,498 INFO L462 AbstractCegarLoop]: Abstraction has 98 states and 106 transitions. [2019-11-20 04:54:58,498 INFO L463 AbstractCegarLoop]: Interpolant automaton has 26 states. [2019-11-20 04:54:58,498 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 106 transitions. [2019-11-20 04:54:58,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-11-20 04:54:58,500 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:54:58,500 INFO L410 BasicCegarLoop]: trace histogram [11, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 04:54:58,704 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 04:54:58,704 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, 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, 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, __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, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 04:54:58,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:54:58,705 INFO L82 PathProgramCache]: Analyzing trace with hash 177113729, now seen corresponding path program 3 times [2019-11-20 04:54:58,705 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 04:54:58,705 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1086482670] [2019-11-20 04:54:58,705 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7cec9265-6a5f-4a91-b8db-ee613b0346e0/bin/uautomizer/cvc4 Starting monitored process 10 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 04:54:59,232 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2019-11-20 04:54:59,232 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 04:54:59,236 INFO L255 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 23 conjunts are in the unsatisfiable core [2019-11-20 04:54:59,239 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:54:59,638 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 10 proven. 145 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:54:59,638 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 04:55:01,848 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 10 proven. 145 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:55:01,849 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1086482670] [2019-11-20 04:55:01,849 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 04:55:01,849 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 22] total 38 [2019-11-20 04:55:01,850 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090712347] [2019-11-20 04:55:01,850 INFO L442 AbstractCegarLoop]: Interpolant automaton has 38 states [2019-11-20 04:55:01,850 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 04:55:01,851 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2019-11-20 04:55:01,851 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=260, Invalid=1146, Unknown=0, NotChecked=0, Total=1406 [2019-11-20 04:55:01,852 INFO L87 Difference]: Start difference. First operand 98 states and 106 transitions. Second operand 38 states. [2019-11-20 04:55:03,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:55:03,118 INFO L93 Difference]: Finished difference Result 96 states and 101 transitions. [2019-11-20 04:55:03,120 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-11-20 04:55:03,121 INFO L78 Accepts]: Start accepts. Automaton has 38 states. Word has length 46 [2019-11-20 04:55:03,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 04:55:03,122 INFO L225 Difference]: With dead ends: 96 [2019-11-20 04:55:03,122 INFO L226 Difference]: Without dead ends: 96 [2019-11-20 04:55:03,122 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 50 SyntacticMatches, 5 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 416 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=285, Invalid=1197, Unknown=0, NotChecked=0, Total=1482 [2019-11-20 04:55:03,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2019-11-20 04:55:03,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2019-11-20 04:55:03,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2019-11-20 04:55:03,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 101 transitions. [2019-11-20 04:55:03,127 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 101 transitions. Word has length 46 [2019-11-20 04:55:03,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 04:55:03,127 INFO L462 AbstractCegarLoop]: Abstraction has 96 states and 101 transitions. [2019-11-20 04:55:03,128 INFO L463 AbstractCegarLoop]: Interpolant automaton has 38 states. [2019-11-20 04:55:03,128 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 101 transitions. [2019-11-20 04:55:03,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-11-20 04:55:03,129 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:55:03,130 INFO L410 BasicCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 04:55:03,334 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 04:55:03,335 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, 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, 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, __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, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 04:55:03,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:55:03,335 INFO L82 PathProgramCache]: Analyzing trace with hash -805853520, now seen corresponding path program 2 times [2019-11-20 04:55:03,336 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 04:55:03,336 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [876513710] [2019-11-20 04:55:03,336 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7cec9265-6a5f-4a91-b8db-ee613b0346e0/bin/uautomizer/cvc4 Starting monitored process 11 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 04:55:03,564 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2019-11-20 04:55:03,564 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 04:55:03,566 INFO L255 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-20 04:55:03,568 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:55:03,598 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2019-11-20 04:55:03,598 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 04:55:03,665 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2019-11-20 04:55:03,665 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [876513710] [2019-11-20 04:55:03,665 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 04:55:03,665 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2019-11-20 04:55:03,665 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992680837] [2019-11-20 04:55:03,666 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-20 04:55:03,666 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 04:55:03,666 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-20 04:55:03,666 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2019-11-20 04:55:03,666 INFO L87 Difference]: Start difference. First operand 96 states and 101 transitions. Second operand 7 states. [2019-11-20 04:55:03,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:55:03,755 INFO L93 Difference]: Finished difference Result 127 states and 136 transitions. [2019-11-20 04:55:03,756 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-20 04:55:03,756 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 56 [2019-11-20 04:55:03,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 04:55:03,757 INFO L225 Difference]: With dead ends: 127 [2019-11-20 04:55:03,757 INFO L226 Difference]: Without dead ends: 124 [2019-11-20 04:55:03,757 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-11-20 04:55:03,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2019-11-20 04:55:03,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 97. [2019-11-20 04:55:03,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2019-11-20 04:55:03,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 102 transitions. [2019-11-20 04:55:03,764 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 102 transitions. Word has length 56 [2019-11-20 04:55:03,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 04:55:03,765 INFO L462 AbstractCegarLoop]: Abstraction has 97 states and 102 transitions. [2019-11-20 04:55:03,765 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-20 04:55:03,765 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 102 transitions. [2019-11-20 04:55:03,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-11-20 04:55:03,767 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:55:03,767 INFO L410 BasicCegarLoop]: trace histogram [10, 10, 10, 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 04:55:03,969 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 04:55:03,970 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, 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, 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, __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, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 04:55:03,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:55:03,971 INFO L82 PathProgramCache]: Analyzing trace with hash -368546806, now seen corresponding path program 1 times [2019-11-20 04:55:03,971 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 04:55:03,971 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [20379290] [2019-11-20 04:55:03,971 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7cec9265-6a5f-4a91-b8db-ee613b0346e0/bin/uautomizer/cvc4 Starting monitored process 12 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 04:55:04,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:55:04,350 INFO L255 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 14 conjunts are in the unsatisfiable core [2019-11-20 04:55:04,351 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:55:04,362 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 04:55:04,362 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 04:55:04,369 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 04:55:04,370 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 04:55:04,370 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-20 04:55:04,466 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 04:55:04,467 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 17 treesize of output 39 [2019-11-20 04:55:04,468 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 04:55:04,488 INFO L567 ElimStorePlain]: treesize reduction 14, result has 51.7 percent of original size [2019-11-20 04:55:04,488 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 04:55:04,489 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:17, output treesize:15 [2019-11-20 04:55:04,516 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2019-11-20 04:55:04,516 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 04:55:06,798 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2019-11-20 04:55:06,799 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [20379290] [2019-11-20 04:55:06,799 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-20 04:55:06,799 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 14 [2019-11-20 04:55:06,799 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582976832] [2019-11-20 04:55:06,800 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-20 04:55:06,800 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 04:55:06,800 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-20 04:55:06,801 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2019-11-20 04:55:06,801 INFO L87 Difference]: Start difference. First operand 97 states and 102 transitions. Second operand 8 states. [2019-11-20 04:55:19,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:55:19,220 INFO L93 Difference]: Finished difference Result 153 states and 170 transitions. [2019-11-20 04:55:19,221 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-11-20 04:55:19,221 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 56 [2019-11-20 04:55:19,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 04:55:19,223 INFO L225 Difference]: With dead ends: 153 [2019-11-20 04:55:19,223 INFO L226 Difference]: Without dead ends: 153 [2019-11-20 04:55:19,223 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 98 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=83, Invalid=379, Unknown=0, NotChecked=0, Total=462 [2019-11-20 04:55:19,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2019-11-20 04:55:19,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 103. [2019-11-20 04:55:19,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2019-11-20 04:55:19,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 112 transitions. [2019-11-20 04:55:19,229 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 112 transitions. Word has length 56 [2019-11-20 04:55:19,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 04:55:19,231 INFO L462 AbstractCegarLoop]: Abstraction has 103 states and 112 transitions. [2019-11-20 04:55:19,231 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-20 04:55:19,231 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 112 transitions. [2019-11-20 04:55:19,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-11-20 04:55:19,236 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:55:19,237 INFO L410 BasicCegarLoop]: trace histogram [10, 10, 10, 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 04:55:19,438 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 04:55:19,438 INFO L410 AbstractCegarLoop]: === Iteration 12 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, 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, 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, __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, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 04:55:19,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:55:19,438 INFO L82 PathProgramCache]: Analyzing trace with hash -368546805, now seen corresponding path program 1 times [2019-11-20 04:55:19,439 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 04:55:19,439 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [539101116] [2019-11-20 04:55:19,439 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7cec9265-6a5f-4a91-b8db-ee613b0346e0/bin/uautomizer/cvc4 Starting monitored process 13 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 04:55:19,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:55:19,952 INFO L255 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 28 conjunts are in the unsatisfiable core [2019-11-20 04:55:19,954 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:55:19,982 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 04:55:19,982 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 04:55:19,991 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 04:55:19,994 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 04:55:19,995 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-20 04:55:20,001 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 04:55:20,001 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 04:55:20,002 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2019-11-20 04:55:22,217 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 04:55:22,219 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 04:55:22,219 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 04:55:22,243 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 04:55:22,257 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 04:55:22,258 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 04:55:22,258 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-20 04:55:22,275 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 04:55:22,276 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 04:55:22,276 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:30, output treesize:12 [2019-11-20 04:55:22,312 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2019-11-20 04:55:22,312 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 04:55:22,500 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-20 04:55:22,926 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 04:55:22,926 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 04:55:22,927 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-20 04:55:22,927 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-20 04:55:22,928 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 04:55:22,929 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-20 04:55:22,929 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-20 04:55:34,593 WARN L191 SmtUtils]: Spent 7.96 s on a formula simplification. DAG size of input: 60 DAG size of output: 35 [2019-11-20 04:55:34,597 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 04:55:50,126 INFO L392 ElimStorePlain]: Different costs {1=[|v_#valid_253|], 2=[|v_#length_214|]} [2019-11-20 04:55:50,135 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 10 treesize of output 8 [2019-11-20 04:55:50,136 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 04:55:50,143 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 04:55:50,145 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-20 04:55:50,145 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-20 04:55:50,152 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 04:55:50,153 INFO L496 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 04:55:50,153 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:23, output treesize:5 [2019-11-20 04:55:50,819 INFO L392 ElimStorePlain]: Different costs {1=[|#valid|], 2=[|#length|]} [2019-11-20 04:55:50,838 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 10 treesize of output 8 [2019-11-20 04:55:50,838 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 04:55:50,853 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 04:55:50,855 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-20 04:55:50,855 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-20 04:55:50,868 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 04:55:50,869 INFO L496 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-20 04:55:50,869 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:33, output treesize:16 [2019-11-20 04:55:51,004 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2019-11-20 04:55:51,005 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [539101116] [2019-11-20 04:55:51,005 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 04:55:51,005 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 21 [2019-11-20 04:55:51,005 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016122633] [2019-11-20 04:55:51,006 INFO L442 AbstractCegarLoop]: Interpolant automaton has 22 states [2019-11-20 04:55:51,006 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 04:55:51,006 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2019-11-20 04:55:51,006 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=404, Unknown=5, NotChecked=0, Total=462 [2019-11-20 04:55:51,006 INFO L87 Difference]: Start difference. First operand 103 states and 112 transitions. Second operand 22 states. [2019-11-20 04:56:08,257 WARN L191 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 29 DAG size of output: 26 [2019-11-20 04:56:17,398 WARN L191 SmtUtils]: Spent 2.02 s on a formula simplification that was a NOOP. DAG size: 16 [2019-11-20 04:56:21,076 WARN L191 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 35 [2019-11-20 04:56:29,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:56:29,210 INFO L93 Difference]: Finished difference Result 241 states and 279 transitions. [2019-11-20 04:56:29,211 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2019-11-20 04:56:29,211 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 56 [2019-11-20 04:56:29,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 04:56:29,213 INFO L225 Difference]: With dead ends: 241 [2019-11-20 04:56:29,214 INFO L226 Difference]: Without dead ends: 241 [2019-11-20 04:56:29,214 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 88 SyntacticMatches, 3 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 38.1s TimeCoverageRelationStatistics Valid=135, Invalid=916, Unknown=5, NotChecked=0, Total=1056 [2019-11-20 04:56:29,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2019-11-20 04:56:29,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 113. [2019-11-20 04:56:29,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2019-11-20 04:56:29,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 129 transitions. [2019-11-20 04:56:29,221 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 129 transitions. Word has length 56 [2019-11-20 04:56:29,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 04:56:29,225 INFO L462 AbstractCegarLoop]: Abstraction has 113 states and 129 transitions. [2019-11-20 04:56:29,225 INFO L463 AbstractCegarLoop]: Interpolant automaton has 22 states. [2019-11-20 04:56:29,225 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 129 transitions. [2019-11-20 04:56:29,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2019-11-20 04:56:29,226 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:56:29,226 INFO L410 BasicCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 04:56:29,439 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 04:56:29,439 INFO L410 AbstractCegarLoop]: === Iteration 13 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, 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, 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, __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, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 04:56:29,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:56:29,439 INFO L82 PathProgramCache]: Analyzing trace with hash -1986206825, now seen corresponding path program 1 times [2019-11-20 04:56:29,440 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 04:56:29,440 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1788655522] [2019-11-20 04:56:29,440 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7cec9265-6a5f-4a91-b8db-ee613b0346e0/bin/uautomizer/cvc4 Starting monitored process 14 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 04:56:29,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:56:29,657 INFO L255 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-20 04:56:29,659 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:56:29,678 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2019-11-20 04:56:29,678 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 04:56:29,727 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2019-11-20 04:56:29,728 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1788655522] [2019-11-20 04:56:29,728 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 04:56:29,728 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-11-20 04:56:29,728 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739230218] [2019-11-20 04:56:29,728 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-20 04:56:29,728 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 04:56:29,728 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 04:56:29,728 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-20 04:56:29,729 INFO L87 Difference]: Start difference. First operand 113 states and 129 transitions. Second operand 5 states. [2019-11-20 04:56:29,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:56:29,775 INFO L93 Difference]: Finished difference Result 133 states and 153 transitions. [2019-11-20 04:56:29,776 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-20 04:56:29,776 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 58 [2019-11-20 04:56:29,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 04:56:29,777 INFO L225 Difference]: With dead ends: 133 [2019-11-20 04:56:29,777 INFO L226 Difference]: Without dead ends: 133 [2019-11-20 04:56:29,777 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-20 04:56:29,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2019-11-20 04:56:29,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 117. [2019-11-20 04:56:29,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 117 states. [2019-11-20 04:56:29,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 132 transitions. [2019-11-20 04:56:29,783 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 132 transitions. Word has length 58 [2019-11-20 04:56:29,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 04:56:29,783 INFO L462 AbstractCegarLoop]: Abstraction has 117 states and 132 transitions. [2019-11-20 04:56:29,784 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-20 04:56:29,784 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 132 transitions. [2019-11-20 04:56:29,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2019-11-20 04:56:29,785 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:56:29,785 INFO L410 BasicCegarLoop]: trace histogram [10, 10, 10, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 04:56:29,987 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 04:56:29,988 INFO L410 AbstractCegarLoop]: === Iteration 14 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, 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, 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, __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, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 04:56:29,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:56:29,988 INFO L82 PathProgramCache]: Analyzing trace with hash -243396490, now seen corresponding path program 1 times [2019-11-20 04:56:29,989 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 04:56:29,989 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [296293924] [2019-11-20 04:56:29,989 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7cec9265-6a5f-4a91-b8db-ee613b0346e0/bin/uautomizer/cvc4 Starting monitored process 15 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 04:56:30,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:56:30,299 INFO L255 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-20 04:56:30,300 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:56:30,310 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2019-11-20 04:56:30,310 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 04:56:30,333 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2019-11-20 04:56:30,333 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [296293924] [2019-11-20 04:56:30,333 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 04:56:30,333 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-11-20 04:56:30,333 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512991010] [2019-11-20 04:56:30,334 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-20 04:56:30,334 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 04:56:30,334 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-20 04:56:30,334 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-20 04:56:30,334 INFO L87 Difference]: Start difference. First operand 117 states and 132 transitions. Second operand 6 states. [2019-11-20 04:56:30,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:56:30,417 INFO L93 Difference]: Finished difference Result 124 states and 139 transitions. [2019-11-20 04:56:30,418 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 04:56:30,418 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 58 [2019-11-20 04:56:30,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 04:56:30,419 INFO L225 Difference]: With dead ends: 124 [2019-11-20 04:56:30,419 INFO L226 Difference]: Without dead ends: 124 [2019-11-20 04:56:30,419 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-11-20 04:56:30,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2019-11-20 04:56:30,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 119. [2019-11-20 04:56:30,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2019-11-20 04:56:30,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 134 transitions. [2019-11-20 04:56:30,424 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 134 transitions. Word has length 58 [2019-11-20 04:56:30,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 04:56:30,424 INFO L462 AbstractCegarLoop]: Abstraction has 119 states and 134 transitions. [2019-11-20 04:56:30,424 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-20 04:56:30,424 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 134 transitions. [2019-11-20 04:56:30,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2019-11-20 04:56:30,425 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:56:30,425 INFO L410 BasicCegarLoop]: trace histogram [10, 10, 10, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 04:56:30,629 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 04:56:30,630 INFO L410 AbstractCegarLoop]: === Iteration 15 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, 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, 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, __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, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 04:56:30,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:56:30,630 INFO L82 PathProgramCache]: Analyzing trace with hash -666295029, now seen corresponding path program 1 times [2019-11-20 04:56:30,630 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 04:56:30,630 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [2057672174] [2019-11-20 04:56:30,630 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7cec9265-6a5f-4a91-b8db-ee613b0346e0/bin/uautomizer/cvc4 Starting monitored process 16 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 04:56:30,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:56:30,943 INFO L255 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 14 conjunts are in the unsatisfiable core [2019-11-20 04:56:30,945 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:56:30,957 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 04:56:30,958 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 04:56:30,965 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 04:56:30,966 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 04:56:30,966 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-20 04:56:31,025 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2019-11-20 04:56:31,025 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 04:56:31,291 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 04:56:31,292 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$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-11-20 04:56:31,295 INFO L168 Benchmark]: Toolchain (without parser) took 114620.02 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 334.0 MB). Free memory was 943.3 MB in the beginning and 1.2 GB in the end (delta: -221.4 MB). Peak memory consumption was 112.6 MB. Max. memory is 11.5 GB. [2019-11-20 04:56:31,296 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 04:56:31,296 INFO L168 Benchmark]: CACSL2BoogieTranslator took 628.48 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 943.3 MB in the beginning and 1.1 GB in the end (delta: -149.3 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. [2019-11-20 04:56:31,296 INFO L168 Benchmark]: Boogie Preprocessor took 109.10 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-20 04:56:31,297 INFO L168 Benchmark]: RCFGBuilder took 1717.47 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 964.8 MB in the end (delta: 121.2 MB). Peak memory consumption was 121.2 MB. Max. memory is 11.5 GB. [2019-11-20 04:56:31,297 INFO L168 Benchmark]: TraceAbstraction took 112157.77 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 198.2 MB). Free memory was 964.8 MB in the beginning and 1.2 GB in the end (delta: -199.9 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 04:56:31,298 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 628.48 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 943.3 MB in the beginning and 1.1 GB in the end (delta: -149.3 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 109.10 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1717.47 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 964.8 MB in the end (delta: 121.2 MB). Peak memory consumption was 121.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 112157.77 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 198.2 MB). Free memory was 964.8 MB in the beginning and 1.2 GB in the end (delta: -199.9 MB). There was no memory consumed. 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...