./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test10-2.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_d0de4e2f-a3c3-4583-a712-7075a72c9631/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_d0de4e2f-a3c3-4583-a712-7075a72c9631/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_d0de4e2f-a3c3-4583-a712-7075a72c9631/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_d0de4e2f-a3c3-4583-a712-7075a72c9631/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test10-2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_d0de4e2f-a3c3-4583-a712-7075a72c9631/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_d0de4e2f-a3c3-4583-a712-7075a72c9631/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 d4308bd7904aec4bec637498669b187d310fac2d ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 03:43:46,004 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 03:43:46,006 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 03:43:46,018 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 03:43:46,019 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 03:43:46,020 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 03:43:46,021 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 03:43:46,024 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 03:43:46,026 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 03:43:46,027 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 03:43:46,028 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 03:43:46,029 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 03:43:46,030 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 03:43:46,031 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 03:43:46,032 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 03:43:46,033 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 03:43:46,034 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 03:43:46,035 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 03:43:46,037 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 03:43:46,039 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 03:43:46,041 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 03:43:46,042 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 03:43:46,044 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 03:43:46,044 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 03:43:46,048 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 03:43:46,048 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 03:43:46,049 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 03:43:46,050 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 03:43:46,050 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 03:43:46,051 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 03:43:46,051 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 03:43:46,052 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 03:43:46,053 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 03:43:46,054 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 03:43:46,055 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 03:43:46,055 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 03:43:46,056 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 03:43:46,056 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 03:43:46,056 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 03:43:46,057 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 03:43:46,058 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 03:43:46,059 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_d0de4e2f-a3c3-4583-a712-7075a72c9631/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2019-11-20 03:43:46,073 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 03:43:46,076 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 03:43:46,078 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 03:43:46,078 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 03:43:46,078 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 03:43:46,079 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 03:43:46,079 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 03:43:46,079 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-20 03:43:46,080 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 03:43:46,080 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 03:43:46,081 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 03:43:46,081 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-20 03:43:46,082 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-20 03:43:46,082 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-20 03:43:46,082 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 03:43:46,082 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-20 03:43:46,083 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-20 03:43:46,083 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 03:43:46,083 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 03:43:46,083 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 03:43:46,084 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 03:43:46,084 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 03:43:46,084 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 03:43:46,084 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 03:43:46,085 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 03:43:46,085 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 03:43:46,085 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-20 03:43:46,086 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-20 03:43:46,086 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-20 03:43:46,086 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_d0de4e2f-a3c3-4583-a712-7075a72c9631/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 -> d4308bd7904aec4bec637498669b187d310fac2d [2019-11-20 03:43:46,314 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 03:43:46,325 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 03:43:46,329 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 03:43:46,332 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 03:43:46,335 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 03:43:46,335 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_d0de4e2f-a3c3-4583-a712-7075a72c9631/bin/uautomizer/../../sv-benchmarks/c/ldv-memsafety/memleaks_test10-2.i [2019-11-20 03:43:46,401 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d0de4e2f-a3c3-4583-a712-7075a72c9631/bin/uautomizer/data/2ec309bc3/a2eba965f8a04138ba3877376a2650f3/FLAG10c06393a [2019-11-20 03:43:46,870 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 03:43:46,871 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_d0de4e2f-a3c3-4583-a712-7075a72c9631/sv-benchmarks/c/ldv-memsafety/memleaks_test10-2.i [2019-11-20 03:43:46,888 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d0de4e2f-a3c3-4583-a712-7075a72c9631/bin/uautomizer/data/2ec309bc3/a2eba965f8a04138ba3877376a2650f3/FLAG10c06393a [2019-11-20 03:43:47,219 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_d0de4e2f-a3c3-4583-a712-7075a72c9631/bin/uautomizer/data/2ec309bc3/a2eba965f8a04138ba3877376a2650f3 [2019-11-20 03:43:47,222 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 03:43:47,223 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-20 03:43:47,224 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 03:43:47,225 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 03:43:47,228 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 03:43:47,229 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 03:43:47" (1/1) ... [2019-11-20 03:43:47,232 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58501167 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:43:47, skipping insertion in model container [2019-11-20 03:43:47,232 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 03:43:47" (1/1) ... [2019-11-20 03:43:47,240 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 03:43:47,290 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 03:43:47,849 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 03:43:47,868 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 03:43:47,928 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 03:43:48,009 INFO L192 MainTranslator]: Completed translation [2019-11-20 03:43:48,009 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:43:48 WrapperNode [2019-11-20 03:43:48,010 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 03:43:48,010 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 03:43:48,011 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 03:43:48,011 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 03:43:48,021 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:43:48" (1/1) ... [2019-11-20 03:43:48,021 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:43:48" (1/1) ... [2019-11-20 03:43:48,044 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:43:48" (1/1) ... [2019-11-20 03:43:48,045 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:43:48" (1/1) ... [2019-11-20 03:43:48,100 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:43:48" (1/1) ... [2019-11-20 03:43:48,113 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:43:48" (1/1) ... [2019-11-20 03:43:48,120 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:43:48" (1/1) ... [2019-11-20 03:43:48,130 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 03:43:48,130 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 03:43:48,130 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 03:43:48,131 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 03:43:48,131 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:43:48" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0de4e2f-a3c3-4583-a712-7075a72c9631/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 03:43:48,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-20 03:43:48,200 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 03:43:48,200 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-11-20 03:43:48,200 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-11-20 03:43:48,201 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-11-20 03:43:48,201 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-11-20 03:43:48,201 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-11-20 03:43:48,201 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-11-20 03:43:48,202 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2019-11-20 03:43:48,202 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2019-11-20 03:43:48,202 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-11-20 03:43:48,202 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-11-20 03:43:48,203 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2019-11-20 03:43:48,203 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2019-11-20 03:43:48,203 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2019-11-20 03:43:48,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2019-11-20 03:43:48,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2019-11-20 03:43:48,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2019-11-20 03:43:48,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2019-11-20 03:43:48,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2019-11-20 03:43:48,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2019-11-20 03:43:48,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2019-11-20 03:43:48,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2019-11-20 03:43:48,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2019-11-20 03:43:48,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2019-11-20 03:43:48,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2019-11-20 03:43:48,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2019-11-20 03:43:48,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2019-11-20 03:43:48,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2019-11-20 03:43:48,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2019-11-20 03:43:48,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2019-11-20 03:43:48,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2019-11-20 03:43:48,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2019-11-20 03:43:48,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2019-11-20 03:43:48,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2019-11-20 03:43:48,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2019-11-20 03:43:48,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2019-11-20 03:43:48,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2019-11-20 03:43:48,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2019-11-20 03:43:48,207 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2019-11-20 03:43:48,207 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2019-11-20 03:43:48,207 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_10 [2019-11-20 03:43:48,208 INFO L138 BoogieDeclarations]: Found implementation of procedure free_10 [2019-11-20 03:43:48,208 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2019-11-20 03:43:48,208 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-20 03:43:48,208 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-11-20 03:43:48,208 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-11-20 03:43:48,208 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-11-20 03:43:48,208 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-20 03:43:48,209 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-20 03:43:48,209 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-20 03:43:48,209 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-20 03:43:48,209 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-20 03:43:48,209 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-20 03:43:48,209 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-20 03:43:48,209 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-20 03:43:48,209 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-20 03:43:48,210 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-20 03:43:48,210 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-20 03:43:48,210 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-20 03:43:48,210 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-20 03:43:48,211 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-20 03:43:48,211 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-20 03:43:48,211 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-20 03:43:48,211 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-11-20 03:43:48,211 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-11-20 03:43:48,211 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-11-20 03:43:48,212 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-11-20 03:43:48,212 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-11-20 03:43:48,212 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-20 03:43:48,212 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-20 03:43:48,213 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-20 03:43:48,213 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-20 03:43:48,214 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-20 03:43:48,214 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-20 03:43:48,214 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-20 03:43:48,215 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-20 03:43:48,215 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-20 03:43:48,215 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-20 03:43:48,215 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-20 03:43:48,215 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-20 03:43:48,215 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-20 03:43:48,216 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-20 03:43:48,216 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-20 03:43:48,216 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-20 03:43:48,216 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-20 03:43:48,216 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-20 03:43:48,216 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-20 03:43:48,217 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-20 03:43:48,217 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-20 03:43:48,217 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-20 03:43:48,217 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-20 03:43:48,217 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-20 03:43:48,217 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-20 03:43:48,217 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-20 03:43:48,217 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-20 03:43:48,218 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-20 03:43:48,218 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-20 03:43:48,218 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-20 03:43:48,218 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-20 03:43:48,218 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-20 03:43:48,218 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-20 03:43:48,218 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-20 03:43:48,218 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-20 03:43:48,219 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-20 03:43:48,219 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-20 03:43:48,219 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-20 03:43:48,219 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-20 03:43:48,219 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-20 03:43:48,219 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-20 03:43:48,222 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-20 03:43:48,222 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-20 03:43:48,222 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-20 03:43:48,223 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-20 03:43:48,223 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-20 03:43:48,223 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-20 03:43:48,223 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-20 03:43:48,223 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-20 03:43:48,224 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-20 03:43:48,224 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-20 03:43:48,224 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-20 03:43:48,224 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-20 03:43:48,224 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-20 03:43:48,225 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-20 03:43:48,225 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-20 03:43:48,225 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-20 03:43:48,225 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-20 03:43:48,225 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-20 03:43:48,226 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-20 03:43:48,226 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-20 03:43:48,227 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-20 03:43:48,229 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-20 03:43:48,229 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-20 03:43:48,229 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-20 03:43:48,229 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-20 03:43:48,230 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-20 03:43:48,230 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-20 03:43:48,230 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-20 03:43:48,230 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-20 03:43:48,230 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-20 03:43:48,231 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-20 03:43:48,231 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-20 03:43:48,231 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-20 03:43:48,237 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-20 03:43:48,237 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-20 03:43:48,237 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-20 03:43:48,238 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-20 03:43:48,238 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-20 03:43:48,238 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-20 03:43:48,238 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-20 03:43:48,238 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-20 03:43:48,238 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-20 03:43:48,238 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-20 03:43:48,238 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-20 03:43:48,238 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-20 03:43:48,239 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-11-20 03:43:48,239 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-20 03:43:48,239 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-11-20 03:43:48,239 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2019-11-20 03:43:48,239 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2019-11-20 03:43:48,239 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-11-20 03:43:48,239 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-11-20 03:43:48,239 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-11-20 03:43:48,239 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-20 03:43:48,240 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-11-20 03:43:48,240 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-11-20 03:43:48,240 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2019-11-20 03:43:48,240 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-20 03:43:48,240 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2019-11-20 03:43:48,240 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2019-11-20 03:43:48,240 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2019-11-20 03:43:48,240 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-20 03:43:48,241 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2019-11-20 03:43:48,241 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2019-11-20 03:43:48,241 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2019-11-20 03:43:48,241 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2019-11-20 03:43:48,242 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-11-20 03:43:48,242 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2019-11-20 03:43:48,242 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 03:43:48,242 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2019-11-20 03:43:48,242 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2019-11-20 03:43:48,242 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2019-11-20 03:43:48,243 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2019-11-20 03:43:48,243 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2019-11-20 03:43:48,243 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-20 03:43:48,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-20 03:43:48,244 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2019-11-20 03:43:48,244 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2019-11-20 03:43:48,244 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-11-20 03:43:48,244 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2019-11-20 03:43:48,244 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2019-11-20 03:43:48,244 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2019-11-20 03:43:48,245 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2019-11-20 03:43:48,245 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2019-11-20 03:43:48,245 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2019-11-20 03:43:48,245 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2019-11-20 03:43:48,245 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2019-11-20 03:43:48,245 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2019-11-20 03:43:48,245 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2019-11-20 03:43:48,246 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2019-11-20 03:43:48,246 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-11-20 03:43:48,246 INFO L130 BoogieDeclarations]: Found specification of procedure f [2019-11-20 03:43:48,246 INFO L130 BoogieDeclarations]: Found specification of procedure g [2019-11-20 03:43:48,246 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_10 [2019-11-20 03:43:48,246 INFO L130 BoogieDeclarations]: Found specification of procedure free_10 [2019-11-20 03:43:48,246 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2019-11-20 03:43:48,247 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-20 03:43:48,247 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-20 03:43:48,247 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 03:43:48,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-20 03:43:48,247 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 03:43:48,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2019-11-20 03:43:48,247 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2019-11-20 03:43:48,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-11-20 03:43:48,248 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-11-20 03:43:48,957 WARN L736 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-20 03:43:49,391 WARN L736 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-20 03:43:49,920 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 03:43:49,922 INFO L285 CfgBuilder]: Removed 1 assume(true) statements. [2019-11-20 03:43:49,924 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 03:43:49 BoogieIcfgContainer [2019-11-20 03:43:49,925 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 03:43:49,926 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 03:43:49,926 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 03:43:49,929 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 03:43:49,929 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 03:43:47" (1/3) ... [2019-11-20 03:43:49,930 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cfba96a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 03:43:49, skipping insertion in model container [2019-11-20 03:43:49,930 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:43:48" (2/3) ... [2019-11-20 03:43:49,931 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cfba96a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 03:43:49, skipping insertion in model container [2019-11-20 03:43:49,931 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 03:43:49" (3/3) ... [2019-11-20 03:43:49,932 INFO L109 eAbstractionObserver]: Analyzing ICFG memleaks_test10-2.i [2019-11-20 03:43:49,940 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 03:43:49,948 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 113 error locations. [2019-11-20 03:43:49,958 INFO L249 AbstractCegarLoop]: Starting to check reachability of 113 error locations. [2019-11-20 03:43:49,980 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 03:43:49,980 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-20 03:43:49,980 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 03:43:49,980 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 03:43:49,981 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 03:43:49,981 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 03:43:49,981 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 03:43:49,981 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 03:43:50,007 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states. [2019-11-20 03:43:50,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-20 03:43:50,016 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 03:43:50,017 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 03:43:50,018 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, alloc_10Err2REQUIRES_VIOLATION, alloc_10Err3REQUIRES_VIOLATION, alloc_10Err4REQUIRES_VIOLATION, alloc_10Err5REQUIRES_VIOLATION, alloc_10Err0REQUIRES_VIOLATION, alloc_10Err1REQUIRES_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, free_10Err4REQUIRES_VIOLATION, free_10Err3REQUIRES_VIOLATION, free_10Err2REQUIRES_VIOLATION, free_10Err1REQUIRES_VIOLATION, free_10Err0REQUIRES_VIOLATION, free_10Err8ASSERT_VIOLATIONMEMORY_FREE, free_10Err6ASSERT_VIOLATIONMEMORY_FREE, free_10Err7ASSERT_VIOLATIONMEMORY_FREE, free_10Err5REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr18ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr11REQUIRES_VIOLATION, entry_pointErr10REQUIRES_VIOLATION, entry_pointErr12REQUIRES_VIOLATION, entry_pointErr25ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr13REQUIRES_VIOLATION, entry_pointErr15REQUIRES_VIOLATION, entry_pointErr14REQUIRES_VIOLATION, entry_pointErr5REQUIRES_VIOLATION, entry_pointErr22ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr7REQUIRES_VIOLATION, entry_pointErr6REQUIRES_VIOLATION, entry_pointErr8REQUIRES_VIOLATION, entry_pointErr16ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr9REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr26ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr24ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr3REQUIRES_VIOLATION, entry_pointErr2REQUIRES_VIOLATION, entry_pointErr4REQUIRES_VIOLATION, entry_pointErr23ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr19REQUIRES_VIOLATION, entry_pointErr17ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr20REQUIRES_VIOLATION, entry_pointErr21ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 03:43:50,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:43:50,024 INFO L82 PathProgramCache]: Analyzing trace with hash 1033291871, now seen corresponding path program 1 times [2019-11-20 03:43:50,035 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 03:43:50,036 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1320399656] [2019-11-20 03:43:50,036 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0de4e2f-a3c3-4583-a712-7075a72c9631/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 03:43:50,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:43:50,334 INFO L255 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-20 03:43:50,339 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 03:43:50,387 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 03:43:50,391 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 03:43:50,490 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 03:43:50,491 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1320399656] [2019-11-20 03:43:50,491 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 03:43:50,491 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-11-20 03:43:50,492 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457442081] [2019-11-20 03:43:50,496 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-20 03:43:50,496 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 03:43:50,509 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 03:43:50,510 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-20 03:43:50,512 INFO L87 Difference]: Start difference. First operand 175 states. Second operand 5 states. [2019-11-20 03:43:50,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 03:43:50,773 INFO L93 Difference]: Finished difference Result 163 states and 181 transitions. [2019-11-20 03:43:50,774 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 03:43:50,775 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2019-11-20 03:43:50,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 03:43:50,786 INFO L225 Difference]: With dead ends: 163 [2019-11-20 03:43:50,787 INFO L226 Difference]: Without dead ends: 160 [2019-11-20 03:43:50,788 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 03:43:50,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2019-11-20 03:43:50,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 106. [2019-11-20 03:43:50,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2019-11-20 03:43:50,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 115 transitions. [2019-11-20 03:43:50,865 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 115 transitions. Word has length 16 [2019-11-20 03:43:50,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 03:43:50,866 INFO L462 AbstractCegarLoop]: Abstraction has 106 states and 115 transitions. [2019-11-20 03:43:50,866 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-20 03:43:50,866 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 115 transitions. [2019-11-20 03:43:50,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-20 03:43:50,869 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 03:43:50,870 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 03:43:51,074 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 03:43:51,074 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, alloc_10Err2REQUIRES_VIOLATION, alloc_10Err3REQUIRES_VIOLATION, alloc_10Err4REQUIRES_VIOLATION, alloc_10Err5REQUIRES_VIOLATION, alloc_10Err0REQUIRES_VIOLATION, alloc_10Err1REQUIRES_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, free_10Err4REQUIRES_VIOLATION, free_10Err3REQUIRES_VIOLATION, free_10Err2REQUIRES_VIOLATION, free_10Err1REQUIRES_VIOLATION, free_10Err0REQUIRES_VIOLATION, free_10Err8ASSERT_VIOLATIONMEMORY_FREE, free_10Err6ASSERT_VIOLATIONMEMORY_FREE, free_10Err7ASSERT_VIOLATIONMEMORY_FREE, free_10Err5REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr18ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr11REQUIRES_VIOLATION, entry_pointErr10REQUIRES_VIOLATION, entry_pointErr12REQUIRES_VIOLATION, entry_pointErr25ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr13REQUIRES_VIOLATION, entry_pointErr15REQUIRES_VIOLATION, entry_pointErr14REQUIRES_VIOLATION, entry_pointErr5REQUIRES_VIOLATION, entry_pointErr22ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr7REQUIRES_VIOLATION, entry_pointErr6REQUIRES_VIOLATION, entry_pointErr8REQUIRES_VIOLATION, entry_pointErr16ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr9REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr26ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr24ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr3REQUIRES_VIOLATION, entry_pointErr2REQUIRES_VIOLATION, entry_pointErr4REQUIRES_VIOLATION, entry_pointErr23ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr19REQUIRES_VIOLATION, entry_pointErr17ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr20REQUIRES_VIOLATION, entry_pointErr21ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 03:43:51,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:43:51,075 INFO L82 PathProgramCache]: Analyzing trace with hash -1518865090, now seen corresponding path program 1 times [2019-11-20 03:43:51,075 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 03:43:51,075 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [665300128] [2019-11-20 03:43:51,075 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0de4e2f-a3c3-4583-a712-7075a72c9631/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 03:43:51,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:43:51,311 INFO L255 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-20 03:43:51,313 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 03:43:51,330 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 03:43:51,330 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 03:43:51,397 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 03:43:51,397 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [665300128] [2019-11-20 03:43:51,397 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 03:43:51,397 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-20 03:43:51,398 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084754993] [2019-11-20 03:43:51,399 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 03:43:51,399 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 03:43:51,399 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 03:43:51,399 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 03:43:51,400 INFO L87 Difference]: Start difference. First operand 106 states and 115 transitions. Second operand 3 states. [2019-11-20 03:43:51,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 03:43:51,684 INFO L93 Difference]: Finished difference Result 156 states and 173 transitions. [2019-11-20 03:43:51,685 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 03:43:51,685 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2019-11-20 03:43:51,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 03:43:51,687 INFO L225 Difference]: With dead ends: 156 [2019-11-20 03:43:51,687 INFO L226 Difference]: Without dead ends: 153 [2019-11-20 03:43:51,688 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 30 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 03:43:51,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2019-11-20 03:43:51,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 102. [2019-11-20 03:43:51,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2019-11-20 03:43:51,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 107 transitions. [2019-11-20 03:43:51,711 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 107 transitions. Word has length 16 [2019-11-20 03:43:51,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 03:43:51,712 INFO L462 AbstractCegarLoop]: Abstraction has 102 states and 107 transitions. [2019-11-20 03:43:51,712 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 03:43:51,712 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 107 transitions. [2019-11-20 03:43:51,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-11-20 03:43:51,714 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 03:43:51,714 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 03:43:51,916 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 03:43:51,917 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, alloc_10Err2REQUIRES_VIOLATION, alloc_10Err3REQUIRES_VIOLATION, alloc_10Err4REQUIRES_VIOLATION, alloc_10Err5REQUIRES_VIOLATION, alloc_10Err0REQUIRES_VIOLATION, alloc_10Err1REQUIRES_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, free_10Err4REQUIRES_VIOLATION, free_10Err3REQUIRES_VIOLATION, free_10Err2REQUIRES_VIOLATION, free_10Err1REQUIRES_VIOLATION, free_10Err0REQUIRES_VIOLATION, free_10Err8ASSERT_VIOLATIONMEMORY_FREE, free_10Err6ASSERT_VIOLATIONMEMORY_FREE, free_10Err7ASSERT_VIOLATIONMEMORY_FREE, free_10Err5REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr18ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr11REQUIRES_VIOLATION, entry_pointErr10REQUIRES_VIOLATION, entry_pointErr12REQUIRES_VIOLATION, entry_pointErr25ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr13REQUIRES_VIOLATION, entry_pointErr15REQUIRES_VIOLATION, entry_pointErr14REQUIRES_VIOLATION, entry_pointErr5REQUIRES_VIOLATION, entry_pointErr22ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr7REQUIRES_VIOLATION, entry_pointErr6REQUIRES_VIOLATION, entry_pointErr8REQUIRES_VIOLATION, entry_pointErr16ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr9REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr26ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr24ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr3REQUIRES_VIOLATION, entry_pointErr2REQUIRES_VIOLATION, entry_pointErr4REQUIRES_VIOLATION, entry_pointErr23ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr19REQUIRES_VIOLATION, entry_pointErr17ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr20REQUIRES_VIOLATION, entry_pointErr21ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 03:43:51,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:43:51,917 INFO L82 PathProgramCache]: Analyzing trace with hash -914584257, now seen corresponding path program 1 times [2019-11-20 03:43:51,918 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 03:43:51,918 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1040947316] [2019-11-20 03:43:51,918 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0de4e2f-a3c3-4583-a712-7075a72c9631/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 03:43:52,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:43:52,184 INFO L255 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 9 conjunts are in the unsatisfiable core [2019-11-20 03:43:52,186 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 03:43:52,227 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 03:43:52,228 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 03:43:52,231 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 03:43:52,231 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 03:43:52,231 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-20 03:43:52,352 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 03:43:52,352 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 03:43:52,353 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 03:43:52,379 INFO L567 ElimStorePlain]: treesize reduction 14, result has 51.7 percent of original size [2019-11-20 03:43:52,380 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 03:43:52,380 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:17, output treesize:15 [2019-11-20 03:43:52,420 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 03:43:52,420 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 03:43:56,846 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 03:43:56,846 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1040947316] [2019-11-20 03:43:56,846 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 03:43:56,846 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2019-11-20 03:43:56,847 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975943519] [2019-11-20 03:43:56,847 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-11-20 03:43:56,847 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 03:43:56,847 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-11-20 03:43:56,848 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=123, Unknown=1, NotChecked=0, Total=156 [2019-11-20 03:43:56,848 INFO L87 Difference]: Start difference. First operand 102 states and 107 transitions. Second operand 13 states. [2019-11-20 03:44:31,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 03:44:31,243 INFO L93 Difference]: Finished difference Result 233 states and 268 transitions. [2019-11-20 03:44:31,246 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-11-20 03:44:31,246 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 19 [2019-11-20 03:44:31,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 03:44:31,249 INFO L225 Difference]: With dead ends: 233 [2019-11-20 03:44:31,249 INFO L226 Difference]: Without dead ends: 233 [2019-11-20 03:44:31,250 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=84, Invalid=295, Unknown=1, NotChecked=0, Total=380 [2019-11-20 03:44:31,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2019-11-20 03:44:31,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 119. [2019-11-20 03:44:31,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2019-11-20 03:44:31,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 142 transitions. [2019-11-20 03:44:31,282 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 142 transitions. Word has length 19 [2019-11-20 03:44:31,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 03:44:31,283 INFO L462 AbstractCegarLoop]: Abstraction has 119 states and 142 transitions. [2019-11-20 03:44:31,283 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-11-20 03:44:31,288 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 142 transitions. [2019-11-20 03:44:31,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-11-20 03:44:31,289 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 03:44:31,289 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 03:44:31,489 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 03:44:31,490 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, alloc_10Err2REQUIRES_VIOLATION, alloc_10Err3REQUIRES_VIOLATION, alloc_10Err4REQUIRES_VIOLATION, alloc_10Err5REQUIRES_VIOLATION, alloc_10Err0REQUIRES_VIOLATION, alloc_10Err1REQUIRES_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, free_10Err4REQUIRES_VIOLATION, free_10Err3REQUIRES_VIOLATION, free_10Err2REQUIRES_VIOLATION, free_10Err1REQUIRES_VIOLATION, free_10Err0REQUIRES_VIOLATION, free_10Err8ASSERT_VIOLATIONMEMORY_FREE, free_10Err6ASSERT_VIOLATIONMEMORY_FREE, free_10Err7ASSERT_VIOLATIONMEMORY_FREE, free_10Err5REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr18ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr11REQUIRES_VIOLATION, entry_pointErr10REQUIRES_VIOLATION, entry_pointErr12REQUIRES_VIOLATION, entry_pointErr25ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr13REQUIRES_VIOLATION, entry_pointErr15REQUIRES_VIOLATION, entry_pointErr14REQUIRES_VIOLATION, entry_pointErr5REQUIRES_VIOLATION, entry_pointErr22ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr7REQUIRES_VIOLATION, entry_pointErr6REQUIRES_VIOLATION, entry_pointErr8REQUIRES_VIOLATION, entry_pointErr16ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr9REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr26ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr24ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr3REQUIRES_VIOLATION, entry_pointErr2REQUIRES_VIOLATION, entry_pointErr4REQUIRES_VIOLATION, entry_pointErr23ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr19REQUIRES_VIOLATION, entry_pointErr17ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr20REQUIRES_VIOLATION, entry_pointErr21ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 03:44:31,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:44:31,491 INFO L82 PathProgramCache]: Analyzing trace with hash -914584256, now seen corresponding path program 1 times [2019-11-20 03:44:31,491 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 03:44:31,491 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [577047026] [2019-11-20 03:44:31,491 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0de4e2f-a3c3-4583-a712-7075a72c9631/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 03:44:31,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:44:31,728 INFO L255 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 18 conjunts are in the unsatisfiable core [2019-11-20 03:44:31,729 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 03:44:31,746 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 03:44:31,747 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 03:44:31,761 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 03:44:31,766 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 03:44:31,766 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-20 03:44:31,779 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 03:44:31,779 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 03:44:31,780 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2019-11-20 03:44:33,934 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 03:44:33,936 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 03:44:33,936 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 03:44:33,948 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 03:44:33,958 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 03:44:33,958 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 17 [2019-11-20 03:44:33,959 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-20 03:44:33,977 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 03:44:33,978 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 03:44:33,978 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:11 [2019-11-20 03:44:34,003 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 03:44:34,003 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 03:44:34,096 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-20 03:44:36,249 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 03:44:36,250 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-20 03:44:36,250 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 03:44:36,252 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 03:44:36,254 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-20 03:44:36,254 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 03:44:36,256 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 03:44:36,257 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 03:44:37,851 WARN L191 SmtUtils]: Spent 1.19 s on a formula simplification. DAG size of input: 57 DAG size of output: 32 [2019-11-20 03:44:37,858 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 03:44:42,995 INFO L392 ElimStorePlain]: Different costs {1=[|#valid|], 2=[|#length|]} [2019-11-20 03:44:43,007 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 03:44:43,007 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 03:44:43,016 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 03:44:43,018 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-20 03:44:43,019 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-20 03:44:43,031 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 03:44:43,032 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 03:44:43,032 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:25, output treesize:8 [2019-11-20 03:44:43,095 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 03:44:43,095 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [577047026] [2019-11-20 03:44:43,095 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 03:44:43,095 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2019-11-20 03:44:43,096 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278183798] [2019-11-20 03:44:43,096 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-11-20 03:44:43,096 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 03:44:43,096 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-11-20 03:44:43,097 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=200, Unknown=2, NotChecked=0, Total=240 [2019-11-20 03:44:43,097 INFO L87 Difference]: Start difference. First operand 119 states and 142 transitions. Second operand 16 states. [2019-11-20 03:45:26,966 WARN L191 SmtUtils]: Spent 10.14 s on a formula simplification. DAG size of input: 36 DAG size of output: 33 [2019-11-20 03:45:40,335 WARN L191 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 27 [2019-11-20 03:45:42,407 WARN L191 SmtUtils]: Spent 2.02 s on a formula simplification that was a NOOP. DAG size: 16 [2019-11-20 03:46:21,265 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 23 [2019-11-20 03:46:53,594 WARN L191 SmtUtils]: Spent 8.23 s on a formula simplification. DAG size of input: 38 DAG size of output: 35 [2019-11-20 03:48:23,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 03:48:23,636 INFO L93 Difference]: Finished difference Result 296 states and 335 transitions. [2019-11-20 03:48:23,638 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-11-20 03:48:23,639 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 19 [2019-11-20 03:48:23,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 03:48:23,641 INFO L225 Difference]: With dead ends: 296 [2019-11-20 03:48:23,641 INFO L226 Difference]: Without dead ends: 296 [2019-11-20 03:48:23,641 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 21 SyntacticMatches, 2 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 36.4s TimeCoverageRelationStatistics Valid=121, Invalid=579, Unknown=2, NotChecked=0, Total=702 [2019-11-20 03:48:23,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2019-11-20 03:48:23,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 138. [2019-11-20 03:48:23,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2019-11-20 03:48:23,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 175 transitions. [2019-11-20 03:48:23,655 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 175 transitions. Word has length 19 [2019-11-20 03:48:23,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 03:48:23,655 INFO L462 AbstractCegarLoop]: Abstraction has 138 states and 175 transitions. [2019-11-20 03:48:23,655 INFO L463 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-11-20 03:48:23,655 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 175 transitions. [2019-11-20 03:48:23,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-11-20 03:48:23,656 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 03:48:23,656 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 03:48:23,856 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 03:48:23,857 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, alloc_10Err2REQUIRES_VIOLATION, alloc_10Err3REQUIRES_VIOLATION, alloc_10Err4REQUIRES_VIOLATION, alloc_10Err5REQUIRES_VIOLATION, alloc_10Err0REQUIRES_VIOLATION, alloc_10Err1REQUIRES_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, free_10Err4REQUIRES_VIOLATION, free_10Err3REQUIRES_VIOLATION, free_10Err2REQUIRES_VIOLATION, free_10Err1REQUIRES_VIOLATION, free_10Err0REQUIRES_VIOLATION, free_10Err8ASSERT_VIOLATIONMEMORY_FREE, free_10Err6ASSERT_VIOLATIONMEMORY_FREE, free_10Err7ASSERT_VIOLATIONMEMORY_FREE, free_10Err5REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr18ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr11REQUIRES_VIOLATION, entry_pointErr10REQUIRES_VIOLATION, entry_pointErr12REQUIRES_VIOLATION, entry_pointErr25ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr13REQUIRES_VIOLATION, entry_pointErr15REQUIRES_VIOLATION, entry_pointErr14REQUIRES_VIOLATION, entry_pointErr5REQUIRES_VIOLATION, entry_pointErr22ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr7REQUIRES_VIOLATION, entry_pointErr6REQUIRES_VIOLATION, entry_pointErr8REQUIRES_VIOLATION, entry_pointErr16ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr9REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr26ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr24ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr3REQUIRES_VIOLATION, entry_pointErr2REQUIRES_VIOLATION, entry_pointErr4REQUIRES_VIOLATION, entry_pointErr23ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr19REQUIRES_VIOLATION, entry_pointErr17ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr20REQUIRES_VIOLATION, entry_pointErr21ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 03:48:23,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:48:23,857 INFO L82 PathProgramCache]: Analyzing trace with hash 1583431680, now seen corresponding path program 1 times [2019-11-20 03:48:23,857 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 03:48:23,857 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1993739287] [2019-11-20 03:48:23,857 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0de4e2f-a3c3-4583-a712-7075a72c9631/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 03:48:24,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:48:24,048 INFO L255 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-20 03:48:24,050 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 03:48:24,074 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 03:48:24,074 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 03:48:24,108 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-20 03:48:24,108 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1993739287] [2019-11-20 03:48:24,108 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-20 03:48:24,108 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 5 [2019-11-20 03:48:24,109 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078301799] [2019-11-20 03:48:24,109 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-20 03:48:24,109 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 03:48:24,109 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 03:48:24,109 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-20 03:48:24,109 INFO L87 Difference]: Start difference. First operand 138 states and 175 transitions. Second operand 5 states. [2019-11-20 03:48:24,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 03:48:24,150 INFO L93 Difference]: Finished difference Result 109 states and 122 transitions. [2019-11-20 03:48:24,151 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 03:48:24,151 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 19 [2019-11-20 03:48:24,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 03:48:24,152 INFO L225 Difference]: With dead ends: 109 [2019-11-20 03:48:24,152 INFO L226 Difference]: Without dead ends: 107 [2019-11-20 03:48:24,152 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 34 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 03:48:24,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2019-11-20 03:48:24,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2019-11-20 03:48:24,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2019-11-20 03:48:24,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 120 transitions. [2019-11-20 03:48:24,159 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 120 transitions. Word has length 19 [2019-11-20 03:48:24,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 03:48:24,159 INFO L462 AbstractCegarLoop]: Abstraction has 107 states and 120 transitions. [2019-11-20 03:48:24,159 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-20 03:48:24,160 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 120 transitions. [2019-11-20 03:48:24,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-11-20 03:48:24,160 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 03:48:24,160 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 03:48:24,361 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 03:48:24,361 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, alloc_10Err2REQUIRES_VIOLATION, alloc_10Err3REQUIRES_VIOLATION, alloc_10Err4REQUIRES_VIOLATION, alloc_10Err5REQUIRES_VIOLATION, alloc_10Err0REQUIRES_VIOLATION, alloc_10Err1REQUIRES_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, free_10Err4REQUIRES_VIOLATION, free_10Err3REQUIRES_VIOLATION, free_10Err2REQUIRES_VIOLATION, free_10Err1REQUIRES_VIOLATION, free_10Err0REQUIRES_VIOLATION, free_10Err8ASSERT_VIOLATIONMEMORY_FREE, free_10Err6ASSERT_VIOLATIONMEMORY_FREE, free_10Err7ASSERT_VIOLATIONMEMORY_FREE, free_10Err5REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr18ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr11REQUIRES_VIOLATION, entry_pointErr10REQUIRES_VIOLATION, entry_pointErr12REQUIRES_VIOLATION, entry_pointErr25ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr13REQUIRES_VIOLATION, entry_pointErr15REQUIRES_VIOLATION, entry_pointErr14REQUIRES_VIOLATION, entry_pointErr5REQUIRES_VIOLATION, entry_pointErr22ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr7REQUIRES_VIOLATION, entry_pointErr6REQUIRES_VIOLATION, entry_pointErr8REQUIRES_VIOLATION, entry_pointErr16ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr9REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr26ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr24ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr3REQUIRES_VIOLATION, entry_pointErr2REQUIRES_VIOLATION, entry_pointErr4REQUIRES_VIOLATION, entry_pointErr23ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr19REQUIRES_VIOLATION, entry_pointErr17ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr20REQUIRES_VIOLATION, entry_pointErr21ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 03:48:24,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:48:24,361 INFO L82 PathProgramCache]: Analyzing trace with hash -565608548, now seen corresponding path program 1 times [2019-11-20 03:48:24,362 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 03:48:24,362 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [455545296] [2019-11-20 03:48:24,362 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0de4e2f-a3c3-4583-a712-7075a72c9631/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 03:48:24,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:48:24,557 INFO L255 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-20 03:48:24,558 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 03:48:24,573 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2019-11-20 03:48:24,573 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 03:48:24,578 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 03:48:24,579 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 03:48:24,579 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:16, output treesize:8 [2019-11-20 03:48:24,596 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 8 [2019-11-20 03:48:24,596 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 03:48:24,599 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 03:48:24,599 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 03:48:24,600 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:16, output treesize:4 [2019-11-20 03:48:24,612 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-20 03:48:24,613 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 03:48:24,659 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-20 03:48:24,659 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [455545296] [2019-11-20 03:48:24,659 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 03:48:24,659 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2019-11-20 03:48:24,659 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254254926] [2019-11-20 03:48:24,660 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-20 03:48:24,660 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 03:48:24,660 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-20 03:48:24,660 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-20 03:48:24,660 INFO L87 Difference]: Start difference. First operand 107 states and 120 transitions. Second operand 6 states. [2019-11-20 03:48:24,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 03:48:24,826 INFO L93 Difference]: Finished difference Result 110 states and 122 transitions. [2019-11-20 03:48:24,826 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-20 03:48:24,826 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 24 [2019-11-20 03:48:24,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 03:48:24,827 INFO L225 Difference]: With dead ends: 110 [2019-11-20 03:48:24,827 INFO L226 Difference]: Without dead ends: 110 [2019-11-20 03:48:24,828 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2019-11-20 03:48:24,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2019-11-20 03:48:24,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 107. [2019-11-20 03:48:24,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2019-11-20 03:48:24,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 119 transitions. [2019-11-20 03:48:24,833 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 119 transitions. Word has length 24 [2019-11-20 03:48:24,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 03:48:24,834 INFO L462 AbstractCegarLoop]: Abstraction has 107 states and 119 transitions. [2019-11-20 03:48:24,834 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-20 03:48:24,834 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 119 transitions. [2019-11-20 03:48:24,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-11-20 03:48:24,834 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 03:48:24,835 INFO L410 BasicCegarLoop]: trace histogram [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 03:48:25,035 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 03:48:25,035 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, alloc_10Err2REQUIRES_VIOLATION, alloc_10Err3REQUIRES_VIOLATION, alloc_10Err4REQUIRES_VIOLATION, alloc_10Err5REQUIRES_VIOLATION, alloc_10Err0REQUIRES_VIOLATION, alloc_10Err1REQUIRES_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, free_10Err4REQUIRES_VIOLATION, free_10Err3REQUIRES_VIOLATION, free_10Err2REQUIRES_VIOLATION, free_10Err1REQUIRES_VIOLATION, free_10Err0REQUIRES_VIOLATION, free_10Err8ASSERT_VIOLATIONMEMORY_FREE, free_10Err6ASSERT_VIOLATIONMEMORY_FREE, free_10Err7ASSERT_VIOLATIONMEMORY_FREE, free_10Err5REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr18ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr11REQUIRES_VIOLATION, entry_pointErr10REQUIRES_VIOLATION, entry_pointErr12REQUIRES_VIOLATION, entry_pointErr25ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr13REQUIRES_VIOLATION, entry_pointErr15REQUIRES_VIOLATION, entry_pointErr14REQUIRES_VIOLATION, entry_pointErr5REQUIRES_VIOLATION, entry_pointErr22ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr7REQUIRES_VIOLATION, entry_pointErr6REQUIRES_VIOLATION, entry_pointErr8REQUIRES_VIOLATION, entry_pointErr16ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr9REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr26ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr24ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr3REQUIRES_VIOLATION, entry_pointErr2REQUIRES_VIOLATION, entry_pointErr4REQUIRES_VIOLATION, entry_pointErr23ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr19REQUIRES_VIOLATION, entry_pointErr17ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr20REQUIRES_VIOLATION, entry_pointErr21ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 03:48:25,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:48:25,036 INFO L82 PathProgramCache]: Analyzing trace with hash 1921904285, now seen corresponding path program 1 times [2019-11-20 03:48:25,036 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 03:48:25,036 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1279566225] [2019-11-20 03:48:25,036 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0de4e2f-a3c3-4583-a712-7075a72c9631/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 03:48:25,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:48:25,323 INFO L255 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-20 03:48:25,325 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 03:48:25,367 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-20 03:48:25,367 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 03:48:25,432 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-20 03:48:25,432 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1279566225] [2019-11-20 03:48:25,432 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 03:48:25,432 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 8 [2019-11-20 03:48:25,433 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056781288] [2019-11-20 03:48:25,433 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-20 03:48:25,433 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 03:48:25,433 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-20 03:48:25,433 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-11-20 03:48:25,433 INFO L87 Difference]: Start difference. First operand 107 states and 119 transitions. Second operand 9 states. [2019-11-20 03:48:25,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 03:48:25,609 INFO L93 Difference]: Finished difference Result 106 states and 117 transitions. [2019-11-20 03:48:25,610 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-20 03:48:25,610 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 24 [2019-11-20 03:48:25,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 03:48:25,611 INFO L225 Difference]: With dead ends: 106 [2019-11-20 03:48:25,611 INFO L226 Difference]: Without dead ends: 106 [2019-11-20 03:48:25,611 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 39 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-11-20 03:48:25,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2019-11-20 03:48:25,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 106. [2019-11-20 03:48:25,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2019-11-20 03:48:25,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 117 transitions. [2019-11-20 03:48:25,618 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 117 transitions. Word has length 24 [2019-11-20 03:48:25,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 03:48:25,619 INFO L462 AbstractCegarLoop]: Abstraction has 106 states and 117 transitions. [2019-11-20 03:48:25,619 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-20 03:48:25,619 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 117 transitions. [2019-11-20 03:48:25,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-11-20 03:48:25,620 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 03:48:25,620 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] [2019-11-20 03:48:25,822 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 03:48:25,822 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, alloc_10Err2REQUIRES_VIOLATION, alloc_10Err3REQUIRES_VIOLATION, alloc_10Err4REQUIRES_VIOLATION, alloc_10Err5REQUIRES_VIOLATION, alloc_10Err0REQUIRES_VIOLATION, alloc_10Err1REQUIRES_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, free_10Err4REQUIRES_VIOLATION, free_10Err3REQUIRES_VIOLATION, free_10Err2REQUIRES_VIOLATION, free_10Err1REQUIRES_VIOLATION, free_10Err0REQUIRES_VIOLATION, free_10Err8ASSERT_VIOLATIONMEMORY_FREE, free_10Err6ASSERT_VIOLATIONMEMORY_FREE, free_10Err7ASSERT_VIOLATIONMEMORY_FREE, free_10Err5REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr18ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr11REQUIRES_VIOLATION, entry_pointErr10REQUIRES_VIOLATION, entry_pointErr12REQUIRES_VIOLATION, entry_pointErr25ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr13REQUIRES_VIOLATION, entry_pointErr15REQUIRES_VIOLATION, entry_pointErr14REQUIRES_VIOLATION, entry_pointErr5REQUIRES_VIOLATION, entry_pointErr22ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr7REQUIRES_VIOLATION, entry_pointErr6REQUIRES_VIOLATION, entry_pointErr8REQUIRES_VIOLATION, entry_pointErr16ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr9REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr26ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr24ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr3REQUIRES_VIOLATION, entry_pointErr2REQUIRES_VIOLATION, entry_pointErr4REQUIRES_VIOLATION, entry_pointErr23ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr19REQUIRES_VIOLATION, entry_pointErr17ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr20REQUIRES_VIOLATION, entry_pointErr21ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 03:48:25,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:48:25,822 INFO L82 PathProgramCache]: Analyzing trace with hash 2014259398, now seen corresponding path program 1 times [2019-11-20 03:48:25,823 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 03:48:25,823 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1926256322] [2019-11-20 03:48:25,823 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0de4e2f-a3c3-4583-a712-7075a72c9631/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 03:48:26,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:48:26,047 INFO L255 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 11 conjunts are in the unsatisfiable core [2019-11-20 03:48:26,048 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 03:48:26,063 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 03:48:26,063 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 03:48:26,065 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 03:48:26,066 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 03:48:26,066 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-20 03:48:26,095 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2019-11-20 03:48:26,095 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 03:48:26,101 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 03:48:26,101 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 03:48:26,102 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:19, output treesize:11 [2019-11-20 03:48:26,146 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2019-11-20 03:48:26,146 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 03:48:26,156 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 03:48:26,157 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-20 03:48:26,157 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:26, output treesize:15 [2019-11-20 03:48:26,249 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 03:48:26,249 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 41 [2019-11-20 03:48:26,250 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 03:48:26,266 INFO L567 ElimStorePlain]: treesize reduction 14, result has 51.7 percent of original size [2019-11-20 03:48:26,266 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 03:48:26,267 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:19, output treesize:15 [2019-11-20 03:48:26,288 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-20 03:48:26,288 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 03:48:30,759 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-20 03:48:30,759 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1926256322] [2019-11-20 03:48:30,759 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 03:48:30,759 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2019-11-20 03:48:30,759 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889165986] [2019-11-20 03:48:30,760 INFO L442 AbstractCegarLoop]: Interpolant automaton has 17 states [2019-11-20 03:48:30,760 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 03:48:30,760 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2019-11-20 03:48:30,761 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=225, Unknown=1, NotChecked=0, Total=272 [2019-11-20 03:48:30,761 INFO L87 Difference]: Start difference. First operand 106 states and 117 transitions. Second operand 17 states. [2019-11-20 03:49:10,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 03:49:10,883 INFO L93 Difference]: Finished difference Result 146 states and 163 transitions. [2019-11-20 03:49:10,883 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-11-20 03:49:10,883 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 29 [2019-11-20 03:49:10,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 03:49:10,885 INFO L225 Difference]: With dead ends: 146 [2019-11-20 03:49:10,885 INFO L226 Difference]: Without dead ends: 146 [2019-11-20 03:49:10,885 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=105, Invalid=446, Unknown=1, NotChecked=0, Total=552 [2019-11-20 03:49:10,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2019-11-20 03:49:10,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 107. [2019-11-20 03:49:10,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2019-11-20 03:49:10,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 118 transitions. [2019-11-20 03:49:10,891 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 118 transitions. Word has length 29 [2019-11-20 03:49:10,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 03:49:10,891 INFO L462 AbstractCegarLoop]: Abstraction has 107 states and 118 transitions. [2019-11-20 03:49:10,892 INFO L463 AbstractCegarLoop]: Interpolant automaton has 17 states. [2019-11-20 03:49:10,892 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 118 transitions. [2019-11-20 03:49:10,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-11-20 03:49:10,893 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 03:49:10,893 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] [2019-11-20 03:49:11,096 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 03:49:11,096 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, alloc_10Err2REQUIRES_VIOLATION, alloc_10Err3REQUIRES_VIOLATION, alloc_10Err4REQUIRES_VIOLATION, alloc_10Err5REQUIRES_VIOLATION, alloc_10Err0REQUIRES_VIOLATION, alloc_10Err1REQUIRES_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, free_10Err4REQUIRES_VIOLATION, free_10Err3REQUIRES_VIOLATION, free_10Err2REQUIRES_VIOLATION, free_10Err1REQUIRES_VIOLATION, free_10Err0REQUIRES_VIOLATION, free_10Err8ASSERT_VIOLATIONMEMORY_FREE, free_10Err6ASSERT_VIOLATIONMEMORY_FREE, free_10Err7ASSERT_VIOLATIONMEMORY_FREE, free_10Err5REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr18ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr11REQUIRES_VIOLATION, entry_pointErr10REQUIRES_VIOLATION, entry_pointErr12REQUIRES_VIOLATION, entry_pointErr25ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr13REQUIRES_VIOLATION, entry_pointErr15REQUIRES_VIOLATION, entry_pointErr14REQUIRES_VIOLATION, entry_pointErr5REQUIRES_VIOLATION, entry_pointErr22ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr7REQUIRES_VIOLATION, entry_pointErr6REQUIRES_VIOLATION, entry_pointErr8REQUIRES_VIOLATION, entry_pointErr16ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr9REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr26ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr24ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr3REQUIRES_VIOLATION, entry_pointErr2REQUIRES_VIOLATION, entry_pointErr4REQUIRES_VIOLATION, entry_pointErr23ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr19REQUIRES_VIOLATION, entry_pointErr17ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr20REQUIRES_VIOLATION, entry_pointErr21ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 03:49:11,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:49:11,098 INFO L82 PathProgramCache]: Analyzing trace with hash 2014259399, now seen corresponding path program 1 times [2019-11-20 03:49:11,098 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 03:49:11,098 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [621017837] [2019-11-20 03:49:11,098 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0de4e2f-a3c3-4583-a712-7075a72c9631/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 03:49:11,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:49:11,350 INFO L255 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 20 conjunts are in the unsatisfiable core [2019-11-20 03:49:11,352 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 03:49:11,367 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 03:49:11,368 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 03:49:11,374 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 03:49:11,382 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 03:49:11,382 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-20 03:49:11,392 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 03:49:11,393 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 03:49:11,393 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2019-11-20 03:49:11,430 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2019-11-20 03:49:11,430 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 03:49:11,449 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 03:49:11,457 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2019-11-20 03:49:11,457 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-20 03:49:11,472 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 03:49:11,473 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 03:49:11,473 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:35, output treesize:30 [2019-11-20 03:49:11,505 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 18 [2019-11-20 03:49:11,506 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 03:49:11,520 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 03:49:11,524 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2019-11-20 03:49:11,524 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-20 03:49:11,536 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 03:49:11,536 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 03:49:11,536 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:44, output treesize:16 [2019-11-20 03:49:13,606 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 03:49:13,607 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 12 treesize of output 14 [2019-11-20 03:49:13,607 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 03:49:13,618 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 03:49:13,626 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 03:49:13,626 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 17 [2019-11-20 03:49:13,627 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-20 03:49:13,636 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 03:49:13,636 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 03:49:13,636 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:27, output treesize:9 [2019-11-20 03:49:13,659 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-20 03:49:13,659 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 03:49:13,742 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-20 03:49:15,857 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 03:49:15,857 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-20 03:49:15,858 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 03:49:15,859 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 03:49:15,860 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-20 03:49:15,860 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 03:49:15,861 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 03:49:15,862 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 03:49:18,877 WARN L191 SmtUtils]: Spent 565.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 32 [2019-11-20 03:49:18,881 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 03:49:21,418 INFO L392 ElimStorePlain]: Different costs {1=[|#valid|], 2=[|#length|]} [2019-11-20 03:49:21,426 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 03:49:21,426 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 03:49:21,438 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 03:49:21,440 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-20 03:49:21,441 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-20 03:49:21,453 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 03:49:21,453 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 03:49:21,453 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:25, output treesize:8 [2019-11-20 03:49:21,552 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-20 03:49:21,552 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [621017837] [2019-11-20 03:49:21,552 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 03:49:21,552 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 17 [2019-11-20 03:49:21,552 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992716457] [2019-11-20 03:49:21,553 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-11-20 03:49:21,553 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 03:49:21,553 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-11-20 03:49:21,553 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=261, Unknown=3, NotChecked=0, Total=306 [2019-11-20 03:49:21,553 INFO L87 Difference]: Start difference. First operand 107 states and 118 transitions. Second operand 18 states. [2019-11-20 03:49:41,949 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((|v_ldv_malloc_#t~malloc12.base_54| (_ BitVec 32)) (|v_entry_point_#t~mem47.base_BEFORE_CALL_4| (_ BitVec 32)) (ldv_malloc_~size (_ BitVec 32)) (|v_entry_point_#t~mem47.offset_BEFORE_CALL_2| (_ BitVec 32))) (let ((.cse0 (bvadd |v_entry_point_#t~mem47.offset_BEFORE_CALL_2| (_ bv4 32)))) (or (not (= (select |c_#valid| |v_ldv_malloc_#t~malloc12.base_54|) (_ bv0 1))) (exists ((v_prenex_7 (_ BitVec 32)) (v_ldv_malloc_~size_61 (_ BitVec 32))) (and (= (select |c_old(#valid)| v_prenex_7) (_ bv0 1)) (not (bvsle (bvadd |v_entry_point_#t~mem47.offset_BEFORE_CALL_2| (_ bv4 32)) (select (store |c_old(#length)| v_prenex_7 v_ldv_malloc_~size_61) |v_entry_point_#t~mem47.base_BEFORE_CALL_4|))))) (not (bvsle (_ bv0 32) |v_entry_point_#t~mem47.offset_BEFORE_CALL_2|)) (bvsle .cse0 (select (store |c_#length| |v_ldv_malloc_#t~malloc12.base_54| ldv_malloc_~size) |v_entry_point_#t~mem47.base_BEFORE_CALL_4|)) (not (bvsle |v_entry_point_#t~mem47.offset_BEFORE_CALL_2| .cse0))))) (= c_ldv_malloc_~size |c_ldv_malloc_#in~size|) (= (_ bv0 32) |c_ldv_malloc_#res.offset|) (= (bvadd (select |c_#valid| |c_ldv_malloc_#res.base|) (_ bv1 1)) (_ bv0 1)) (exists ((ldv_malloc_~size (_ BitVec 32)) (|ldv_malloc_#t~malloc12.base| (_ BitVec 32))) (and (= (_ bv0 1) (select |c_old(#valid)| |ldv_malloc_#t~malloc12.base|)) (= (store |c_old(#length)| |ldv_malloc_#t~malloc12.base| ldv_malloc_~size) |c_#length|))) (= (select |c_#length| |c_ldv_malloc_#res.base|) |c_ldv_malloc_#in~size|) (forall ((|v_entry_point_#t~mem47.base_BEFORE_CALL_4| (_ BitVec 32)) (|v_entry_point_#t~mem47.offset_BEFORE_CALL_2| (_ BitVec 32))) (let ((.cse1 (bvadd |v_entry_point_#t~mem47.offset_BEFORE_CALL_2| (_ bv4 32)))) (or (exists ((v_prenex_7 (_ BitVec 32)) (v_ldv_malloc_~size_61 (_ BitVec 32))) (and (= (select |c_old(#valid)| v_prenex_7) (_ bv0 1)) (not (bvsle (bvadd |v_entry_point_#t~mem47.offset_BEFORE_CALL_2| (_ bv4 32)) (select (store |c_old(#length)| v_prenex_7 v_ldv_malloc_~size_61) |v_entry_point_#t~mem47.base_BEFORE_CALL_4|))))) (not (bvsle (_ bv0 32) |v_entry_point_#t~mem47.offset_BEFORE_CALL_2|)) (bvsle .cse1 (select |c_#length| |v_entry_point_#t~mem47.base_BEFORE_CALL_4|)) (not (bvsle |v_entry_point_#t~mem47.offset_BEFORE_CALL_2| .cse1))))) (exists ((|v_ldv_malloc_#t~malloc12.base_53| (_ BitVec 32))) (= (select |c_old(#valid)| |v_ldv_malloc_#t~malloc12.base_53|) (_ bv0 1)))) is different from false [2019-11-20 03:49:45,983 WARN L838 $PredicateComparison]: unable to prove that (and (= (_ bv0 32) |c_ldv_malloc_#res.offset|) (= (bvadd (select |c_#valid| |c_ldv_malloc_#res.base|) (_ bv1 1)) (_ bv0 1)) (exists ((ldv_malloc_~size (_ BitVec 32)) (|ldv_malloc_#t~malloc12.base| (_ BitVec 32))) (and (= (_ bv0 1) (select |c_old(#valid)| |ldv_malloc_#t~malloc12.base|)) (= (store |c_old(#length)| |ldv_malloc_#t~malloc12.base| ldv_malloc_~size) |c_#length|))) (= (select |c_#length| |c_ldv_malloc_#res.base|) |c_ldv_malloc_#in~size|) (forall ((|v_entry_point_#t~mem47.base_BEFORE_CALL_4| (_ BitVec 32)) (|v_entry_point_#t~mem47.offset_BEFORE_CALL_2| (_ BitVec 32))) (let ((.cse0 (bvadd |v_entry_point_#t~mem47.offset_BEFORE_CALL_2| (_ bv4 32)))) (or (exists ((v_prenex_7 (_ BitVec 32)) (v_ldv_malloc_~size_61 (_ BitVec 32))) (and (= (select |c_old(#valid)| v_prenex_7) (_ bv0 1)) (not (bvsle (bvadd |v_entry_point_#t~mem47.offset_BEFORE_CALL_2| (_ bv4 32)) (select (store |c_old(#length)| v_prenex_7 v_ldv_malloc_~size_61) |v_entry_point_#t~mem47.base_BEFORE_CALL_4|))))) (not (bvsle (_ bv0 32) |v_entry_point_#t~mem47.offset_BEFORE_CALL_2|)) (bvsle .cse0 (select |c_#length| |v_entry_point_#t~mem47.base_BEFORE_CALL_4|)) (not (bvsle |v_entry_point_#t~mem47.offset_BEFORE_CALL_2| .cse0))))) (exists ((|v_ldv_malloc_#t~malloc12.base_53| (_ BitVec 32))) (= (select |c_old(#valid)| |v_ldv_malloc_#t~malloc12.base_53|) (_ bv0 1)))) is different from false [2019-11-20 03:50:04,123 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((ldv_malloc_~size (_ BitVec 32)) (|ldv_malloc_#t~malloc12.base| (_ BitVec 32))) (and (= (_ bv0 1) (select |c_old(#valid)| |ldv_malloc_#t~malloc12.base|)) (= (store |c_old(#length)| |ldv_malloc_#t~malloc12.base| ldv_malloc_~size) |c_#length|))) (= |c_#valid| |c_old(#valid)|) (forall ((|v_entry_point_#t~mem47.base_BEFORE_CALL_4| (_ BitVec 32)) (|v_entry_point_#t~mem47.offset_BEFORE_CALL_2| (_ BitVec 32))) (let ((.cse0 (bvadd |v_entry_point_#t~mem47.offset_BEFORE_CALL_2| (_ bv4 32)))) (or (exists ((v_prenex_7 (_ BitVec 32)) (v_ldv_malloc_~size_61 (_ BitVec 32))) (and (= (select |c_old(#valid)| v_prenex_7) (_ bv0 1)) (not (bvsle (bvadd |v_entry_point_#t~mem47.offset_BEFORE_CALL_2| (_ bv4 32)) (select (store |c_old(#length)| v_prenex_7 v_ldv_malloc_~size_61) |v_entry_point_#t~mem47.base_BEFORE_CALL_4|))))) (not (bvsle (_ bv0 32) |v_entry_point_#t~mem47.offset_BEFORE_CALL_2|)) (bvsle .cse0 (select |c_#length| |v_entry_point_#t~mem47.base_BEFORE_CALL_4|)) (not (bvsle |v_entry_point_#t~mem47.offset_BEFORE_CALL_2| .cse0))))) (= |c_old(#length)| |c_#length|) (exists ((|v_ldv_malloc_#t~malloc12.base_53| (_ BitVec 32))) (= (select |c_old(#valid)| |v_ldv_malloc_#t~malloc12.base_53|) (_ bv0 1)))) is different from false [2019-11-20 03:50:42,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 03:50:42,071 INFO L93 Difference]: Finished difference Result 114 states and 123 transitions. [2019-11-20 03:50:42,072 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-11-20 03:50:42,072 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 29 [2019-11-20 03:50:42,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 03:50:42,073 INFO L225 Difference]: With dead ends: 114 [2019-11-20 03:50:42,073 INFO L226 Difference]: Without dead ends: 114 [2019-11-20 03:50:42,074 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 41 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 18.2s TimeCoverageRelationStatistics Valid=74, Invalid=393, Unknown=7, NotChecked=126, Total=600 [2019-11-20 03:50:42,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2019-11-20 03:50:42,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 107. [2019-11-20 03:50:42,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2019-11-20 03:50:42,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 116 transitions. [2019-11-20 03:50:42,079 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 116 transitions. Word has length 29 [2019-11-20 03:50:42,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 03:50:42,079 INFO L462 AbstractCegarLoop]: Abstraction has 107 states and 116 transitions. [2019-11-20 03:50:42,079 INFO L463 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-11-20 03:50:42,079 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 116 transitions. [2019-11-20 03:50:42,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-11-20 03:50:42,081 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 03:50:42,081 INFO L410 BasicCegarLoop]: trace histogram [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 03:50:42,281 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 03:50:42,282 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, alloc_10Err2REQUIRES_VIOLATION, alloc_10Err3REQUIRES_VIOLATION, alloc_10Err4REQUIRES_VIOLATION, alloc_10Err5REQUIRES_VIOLATION, alloc_10Err0REQUIRES_VIOLATION, alloc_10Err1REQUIRES_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, free_10Err4REQUIRES_VIOLATION, free_10Err3REQUIRES_VIOLATION, free_10Err2REQUIRES_VIOLATION, free_10Err1REQUIRES_VIOLATION, free_10Err0REQUIRES_VIOLATION, free_10Err8ASSERT_VIOLATIONMEMORY_FREE, free_10Err6ASSERT_VIOLATIONMEMORY_FREE, free_10Err7ASSERT_VIOLATIONMEMORY_FREE, free_10Err5REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr18ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr11REQUIRES_VIOLATION, entry_pointErr10REQUIRES_VIOLATION, entry_pointErr12REQUIRES_VIOLATION, entry_pointErr25ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr13REQUIRES_VIOLATION, entry_pointErr15REQUIRES_VIOLATION, entry_pointErr14REQUIRES_VIOLATION, entry_pointErr5REQUIRES_VIOLATION, entry_pointErr22ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr7REQUIRES_VIOLATION, entry_pointErr6REQUIRES_VIOLATION, entry_pointErr8REQUIRES_VIOLATION, entry_pointErr16ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr9REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr26ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr24ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr3REQUIRES_VIOLATION, entry_pointErr2REQUIRES_VIOLATION, entry_pointErr4REQUIRES_VIOLATION, entry_pointErr23ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr19REQUIRES_VIOLATION, entry_pointErr17ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr20REQUIRES_VIOLATION, entry_pointErr21ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 03:50:42,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:50:42,282 INFO L82 PathProgramCache]: Analyzing trace with hash -2023525421, now seen corresponding path program 1 times [2019-11-20 03:50:42,282 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 03:50:42,282 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1153108460] [2019-11-20 03:50:42,283 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0de4e2f-a3c3-4583-a712-7075a72c9631/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 03:50:42,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:50:42,513 INFO L255 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 17 conjunts are in the unsatisfiable core [2019-11-20 03:50:42,514 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 03:50:42,531 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 03:50:42,532 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 37 [2019-11-20 03:50:42,532 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 03:50:42,550 INFO L567 ElimStorePlain]: treesize reduction 10, result has 60.0 percent of original size [2019-11-20 03:50:42,550 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 03:50:42,551 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 03:50:42,551 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:18, output treesize:15 [2019-11-20 03:50:42,551 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 03:50:42,555 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 03:50:42,569 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 03:50:42,580 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 03:50:48,709 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-20 03:50:48,709 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 03:50:53,059 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 03:50:53,059 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$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-11-20 03:50:53,063 INFO L168 Benchmark]: Toolchain (without parser) took 425840.75 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 165.7 MB). Free memory was 939.4 MB in the beginning and 1.1 GB in the end (delta: -202.6 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 03:50:53,064 INFO L168 Benchmark]: CDTParser took 0.61 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 03:50:53,065 INFO L168 Benchmark]: CACSL2BoogieTranslator took 785.72 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.1 MB). Free memory was 939.4 MB in the beginning and 1.1 GB in the end (delta: -163.5 MB). Peak memory consumption was 18.6 MB. Max. memory is 11.5 GB. [2019-11-20 03:50:53,068 INFO L168 Benchmark]: Boogie Preprocessor took 119.53 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-20 03:50:53,068 INFO L168 Benchmark]: RCFGBuilder took 1795.13 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 972.2 MB in the end (delta: 125.4 MB). Peak memory consumption was 125.4 MB. Max. memory is 11.5 GB. [2019-11-20 03:50:53,069 INFO L168 Benchmark]: TraceAbstraction took 423136.15 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 23.6 MB). Free memory was 972.2 MB in the beginning and 1.1 GB in the end (delta: -169.8 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 03:50:53,070 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.61 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 785.72 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.1 MB). Free memory was 939.4 MB in the beginning and 1.1 GB in the end (delta: -163.5 MB). Peak memory consumption was 18.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 119.53 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1795.13 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 972.2 MB in the end (delta: 125.4 MB). Peak memory consumption was 125.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 423136.15 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 23.6 MB). Free memory was 972.2 MB in the beginning and 1.1 GB in the end (delta: -169.8 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...