./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test10-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 678e0110 Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_aa704fde-6aa6-4639-ad5c-342c5b695e16/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_aa704fde-6aa6-4639-ad5c-342c5b695e16/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_aa704fde-6aa6-4639-ad5c-342c5b695e16/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_aa704fde-6aa6-4639-ad5c-342c5b695e16/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test10-1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_aa704fde-6aa6-4639-ad5c-342c5b695e16/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_aa704fde-6aa6-4639-ad5c-342c5b695e16/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 041177a9b9f9d56d6ca6291d997bf38d41f568ad ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 01:52:45,984 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 01:52:45,986 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 01:52:46,004 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 01:52:46,005 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 01:52:46,006 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 01:52:46,008 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 01:52:46,019 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 01:52:46,025 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 01:52:46,028 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 01:52:46,029 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 01:52:46,030 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 01:52:46,030 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 01:52:46,031 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 01:52:46,032 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 01:52:46,033 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 01:52:46,034 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 01:52:46,035 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 01:52:46,040 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 01:52:46,045 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 01:52:46,050 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 01:52:46,052 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 01:52:46,055 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 01:52:46,056 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 01:52:46,059 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 01:52:46,060 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 01:52:46,060 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 01:52:46,062 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 01:52:46,063 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 01:52:46,064 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 01:52:46,064 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 01:52:46,065 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 01:52:46,066 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 01:52:46,067 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 01:52:46,068 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 01:52:46,068 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 01:52:46,068 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 01:52:46,069 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 01:52:46,069 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 01:52:46,070 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 01:52:46,071 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 01:52:46,072 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_aa704fde-6aa6-4639-ad5c-342c5b695e16/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2019-11-20 01:52:46,115 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 01:52:46,115 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 01:52:46,116 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 01:52:46,117 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 01:52:46,117 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 01:52:46,117 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 01:52:46,117 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 01:52:46,118 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-20 01:52:46,118 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 01:52:46,118 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 01:52:46,118 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 01:52:46,119 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-20 01:52:46,119 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-20 01:52:46,119 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-20 01:52:46,119 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 01:52:46,119 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-20 01:52:46,120 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-20 01:52:46,120 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 01:52:46,120 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 01:52:46,120 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 01:52:46,121 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 01:52:46,121 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 01:52:46,121 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 01:52:46,121 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 01:52:46,121 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 01:52:46,122 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 01:52:46,122 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-20 01:52:46,122 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-20 01:52:46,122 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-20 01:52:46,123 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_aa704fde-6aa6-4639-ad5c-342c5b695e16/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 -> 041177a9b9f9d56d6ca6291d997bf38d41f568ad [2019-11-20 01:52:46,338 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 01:52:46,357 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 01:52:46,360 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 01:52:46,362 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 01:52:46,363 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 01:52:46,364 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_aa704fde-6aa6-4639-ad5c-342c5b695e16/bin/uautomizer/../../sv-benchmarks/c/ldv-memsafety/memleaks_test10-1.i [2019-11-20 01:52:46,441 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_aa704fde-6aa6-4639-ad5c-342c5b695e16/bin/uautomizer/data/fd60457d0/7e65289024de4b1f81dbf835b9683cae/FLAGd99503cc7 [2019-11-20 01:52:47,142 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 01:52:47,143 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_aa704fde-6aa6-4639-ad5c-342c5b695e16/sv-benchmarks/c/ldv-memsafety/memleaks_test10-1.i [2019-11-20 01:52:47,173 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_aa704fde-6aa6-4639-ad5c-342c5b695e16/bin/uautomizer/data/fd60457d0/7e65289024de4b1f81dbf835b9683cae/FLAGd99503cc7 [2019-11-20 01:52:47,310 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_aa704fde-6aa6-4639-ad5c-342c5b695e16/bin/uautomizer/data/fd60457d0/7e65289024de4b1f81dbf835b9683cae [2019-11-20 01:52:47,316 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 01:52:47,318 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-20 01:52:47,323 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 01:52:47,323 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 01:52:47,327 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 01:52:47,328 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 01:52:47" (1/1) ... [2019-11-20 01:52:47,331 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@752aa4cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:52:47, skipping insertion in model container [2019-11-20 01:52:47,332 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 01:52:47" (1/1) ... [2019-11-20 01:52:47,341 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 01:52:47,416 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 01:52:48,128 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 01:52:48,164 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 01:52:48,240 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 01:52:48,385 INFO L192 MainTranslator]: Completed translation [2019-11-20 01:52:48,385 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:52:48 WrapperNode [2019-11-20 01:52:48,386 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 01:52:48,387 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 01:52:48,387 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 01:52:48,387 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 01:52:48,401 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:52:48" (1/1) ... [2019-11-20 01:52:48,401 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:52:48" (1/1) ... [2019-11-20 01:52:48,431 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:52:48" (1/1) ... [2019-11-20 01:52:48,432 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:52:48" (1/1) ... [2019-11-20 01:52:48,476 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:52:48" (1/1) ... [2019-11-20 01:52:48,502 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:52:48" (1/1) ... [2019-11-20 01:52:48,511 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:52:48" (1/1) ... [2019-11-20 01:52:48,525 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 01:52:48,526 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 01:52:48,526 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 01:52:48,526 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 01:52:48,527 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:52:48" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_aa704fde-6aa6-4639-ad5c-342c5b695e16/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 01:52:48,617 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-20 01:52:48,617 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 01:52:48,617 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-11-20 01:52:48,618 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-11-20 01:52:48,618 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-11-20 01:52:48,619 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-11-20 01:52:48,619 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-11-20 01:52:48,620 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-11-20 01:52:48,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2019-11-20 01:52:48,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2019-11-20 01:52:48,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-11-20 01:52:48,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-11-20 01:52:48,622 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2019-11-20 01:52:48,622 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2019-11-20 01:52:48,622 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2019-11-20 01:52:48,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2019-11-20 01:52:48,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2019-11-20 01:52:48,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2019-11-20 01:52:48,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2019-11-20 01:52:48,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2019-11-20 01:52:48,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2019-11-20 01:52:48,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2019-11-20 01:52:48,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2019-11-20 01:52:48,625 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2019-11-20 01:52:48,625 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2019-11-20 01:52:48,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2019-11-20 01:52:48,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2019-11-20 01:52:48,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2019-11-20 01:52:48,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2019-11-20 01:52:48,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2019-11-20 01:52:48,627 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2019-11-20 01:52:48,627 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2019-11-20 01:52:48,627 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2019-11-20 01:52:48,627 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2019-11-20 01:52:48,627 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2019-11-20 01:52:48,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2019-11-20 01:52:48,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2019-11-20 01:52:48,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2019-11-20 01:52:48,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2019-11-20 01:52:48,628 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2019-11-20 01:52:48,628 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2019-11-20 01:52:48,629 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_10 [2019-11-20 01:52:48,629 INFO L138 BoogieDeclarations]: Found implementation of procedure free_10 [2019-11-20 01:52:48,629 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2019-11-20 01:52:48,629 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-20 01:52:48,629 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-11-20 01:52:48,630 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-11-20 01:52:48,630 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-11-20 01:52:48,630 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-20 01:52:48,630 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-20 01:52:48,630 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-20 01:52:48,630 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-20 01:52:48,631 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-20 01:52:48,631 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-20 01:52:48,631 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-20 01:52:48,631 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-20 01:52:48,631 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-20 01:52:48,632 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-20 01:52:48,632 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-20 01:52:48,632 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-20 01:52:48,633 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-20 01:52:48,633 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-20 01:52:48,633 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-20 01:52:48,633 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-20 01:52:48,633 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-11-20 01:52:48,633 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-11-20 01:52:48,634 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-11-20 01:52:48,635 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-11-20 01:52:48,635 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-11-20 01:52:48,635 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-20 01:52:48,635 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-20 01:52:48,636 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-20 01:52:48,636 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-20 01:52:48,637 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-20 01:52:48,637 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-20 01:52:48,638 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-20 01:52:48,638 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-20 01:52:48,638 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-20 01:52:48,639 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-20 01:52:48,639 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-20 01:52:48,639 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-20 01:52:48,639 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-20 01:52:48,639 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-20 01:52:48,640 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-20 01:52:48,640 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-20 01:52:48,641 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-20 01:52:48,641 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-20 01:52:48,641 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-20 01:52:48,641 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-20 01:52:48,641 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-20 01:52:48,642 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-20 01:52:48,642 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-20 01:52:48,642 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-20 01:52:48,642 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-20 01:52:48,642 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-20 01:52:48,642 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-20 01:52:48,643 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-20 01:52:48,643 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-20 01:52:48,643 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-20 01:52:48,643 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-20 01:52:48,643 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-20 01:52:48,643 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-20 01:52:48,644 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-20 01:52:48,644 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-20 01:52:48,644 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-20 01:52:48,644 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-20 01:52:48,644 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-20 01:52:48,644 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-20 01:52:48,645 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-20 01:52:48,645 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-20 01:52:48,645 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-20 01:52:48,645 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-20 01:52:48,645 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-20 01:52:48,645 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-20 01:52:48,646 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-20 01:52:48,646 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-20 01:52:48,646 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-20 01:52:48,647 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-20 01:52:48,647 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-20 01:52:48,648 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-20 01:52:48,648 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-20 01:52:48,648 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-20 01:52:48,648 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-20 01:52:48,648 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-20 01:52:48,649 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-20 01:52:48,649 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-20 01:52:48,649 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-20 01:52:48,649 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-20 01:52:48,649 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-20 01:52:48,650 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-20 01:52:48,651 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-20 01:52:48,654 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-20 01:52:48,654 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-20 01:52:48,655 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-20 01:52:48,655 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-20 01:52:48,656 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-20 01:52:48,656 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-20 01:52:48,660 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-20 01:52:48,661 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-20 01:52:48,661 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-20 01:52:48,661 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-20 01:52:48,661 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-20 01:52:48,661 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-20 01:52:48,668 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-20 01:52:48,668 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-20 01:52:48,668 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-20 01:52:48,668 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-20 01:52:48,669 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-20 01:52:48,669 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-20 01:52:48,669 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-20 01:52:48,669 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-20 01:52:48,669 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-20 01:52:48,669 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-20 01:52:48,670 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-20 01:52:48,670 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-20 01:52:48,670 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-11-20 01:52:48,670 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-20 01:52:48,670 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-11-20 01:52:48,670 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2019-11-20 01:52:48,671 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2019-11-20 01:52:48,671 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-11-20 01:52:48,671 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-11-20 01:52:48,671 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-11-20 01:52:48,671 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-20 01:52:48,671 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-11-20 01:52:48,672 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-11-20 01:52:48,672 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2019-11-20 01:52:48,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-20 01:52:48,672 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2019-11-20 01:52:48,672 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2019-11-20 01:52:48,672 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2019-11-20 01:52:48,673 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-20 01:52:48,673 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2019-11-20 01:52:48,673 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2019-11-20 01:52:48,673 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2019-11-20 01:52:48,673 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2019-11-20 01:52:48,673 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-11-20 01:52:48,673 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2019-11-20 01:52:48,674 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 01:52:48,674 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2019-11-20 01:52:48,674 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2019-11-20 01:52:48,674 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2019-11-20 01:52:48,674 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2019-11-20 01:52:48,674 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2019-11-20 01:52:48,675 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-20 01:52:48,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-20 01:52:48,675 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2019-11-20 01:52:48,675 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2019-11-20 01:52:48,675 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-11-20 01:52:48,675 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2019-11-20 01:52:48,676 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2019-11-20 01:52:48,676 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2019-11-20 01:52:48,676 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2019-11-20 01:52:48,676 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2019-11-20 01:52:48,676 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2019-11-20 01:52:48,676 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2019-11-20 01:52:48,677 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2019-11-20 01:52:48,677 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2019-11-20 01:52:48,677 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2019-11-20 01:52:48,677 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2019-11-20 01:52:48,677 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-11-20 01:52:48,677 INFO L130 BoogieDeclarations]: Found specification of procedure f [2019-11-20 01:52:48,678 INFO L130 BoogieDeclarations]: Found specification of procedure g [2019-11-20 01:52:48,678 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_10 [2019-11-20 01:52:48,678 INFO L130 BoogieDeclarations]: Found specification of procedure free_10 [2019-11-20 01:52:48,678 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2019-11-20 01:52:48,678 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-20 01:52:48,678 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-20 01:52:48,679 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 01:52:48,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-20 01:52:48,679 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 01:52:48,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2019-11-20 01:52:48,679 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2019-11-20 01:52:48,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-11-20 01:52:48,680 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-11-20 01:52:49,566 WARN L736 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-20 01:52:50,251 WARN L736 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-20 01:52:51,040 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 01:52:51,045 INFO L285 CfgBuilder]: Removed 1 assume(true) statements. [2019-11-20 01:52:51,047 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 01:52:51 BoogieIcfgContainer [2019-11-20 01:52:51,047 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 01:52:51,048 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 01:52:51,049 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 01:52:51,052 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 01:52:51,052 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 01:52:47" (1/3) ... [2019-11-20 01:52:51,053 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22a343bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 01:52:51, skipping insertion in model container [2019-11-20 01:52:51,053 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:52:48" (2/3) ... [2019-11-20 01:52:51,054 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22a343bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 01:52:51, skipping insertion in model container [2019-11-20 01:52:51,054 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 01:52:51" (3/3) ... [2019-11-20 01:52:51,057 INFO L109 eAbstractionObserver]: Analyzing ICFG memleaks_test10-1.i [2019-11-20 01:52:51,068 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 01:52:51,079 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 113 error locations. [2019-11-20 01:52:51,091 INFO L249 AbstractCegarLoop]: Starting to check reachability of 113 error locations. [2019-11-20 01:52:51,115 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 01:52:51,116 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-20 01:52:51,116 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 01:52:51,116 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 01:52:51,116 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 01:52:51,116 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 01:52:51,116 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 01:52:51,117 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 01:52:51,153 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states. [2019-11-20 01:52:51,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-20 01:52:51,165 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 01:52:51,166 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 01:52:51,167 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 01:52:51,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 01:52:51,175 INFO L82 PathProgramCache]: Analyzing trace with hash 727722691, now seen corresponding path program 1 times [2019-11-20 01:52:51,189 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 01:52:51,190 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1126447615] [2019-11-20 01:52:51,190 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_aa704fde-6aa6-4639-ad5c-342c5b695e16/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 01:52:51,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 01:52:51,570 INFO L255 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-20 01:52:51,578 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 01:52:51,648 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 01:52:51,649 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 01:52:51,774 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 01:52:51,775 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1126447615] [2019-11-20 01:52:51,776 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 01:52:51,776 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-11-20 01:52:51,777 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167373626] [2019-11-20 01:52:51,784 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-20 01:52:51,785 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 01:52:51,802 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 01:52:51,803 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-20 01:52:51,805 INFO L87 Difference]: Start difference. First operand 156 states. Second operand 5 states. [2019-11-20 01:52:52,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 01:52:52,154 INFO L93 Difference]: Finished difference Result 143 states and 160 transitions. [2019-11-20 01:52:52,156 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 01:52:52,157 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2019-11-20 01:52:52,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 01:52:52,180 INFO L225 Difference]: With dead ends: 143 [2019-11-20 01:52:52,181 INFO L226 Difference]: Without dead ends: 140 [2019-11-20 01:52:52,182 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 01:52:52,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2019-11-20 01:52:52,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 87. [2019-11-20 01:52:52,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2019-11-20 01:52:52,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 96 transitions. [2019-11-20 01:52:52,247 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 96 transitions. Word has length 16 [2019-11-20 01:52:52,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 01:52:52,247 INFO L462 AbstractCegarLoop]: Abstraction has 87 states and 96 transitions. [2019-11-20 01:52:52,248 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-20 01:52:52,248 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 96 transitions. [2019-11-20 01:52:52,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-20 01:52:52,250 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 01:52:52,250 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 01:52:52,452 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 01:52:52,460 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 01:52:52,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 01:52:52,461 INFO L82 PathProgramCache]: Analyzing trace with hash -1824434270, now seen corresponding path program 1 times [2019-11-20 01:52:52,462 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 01:52:52,463 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1903052019] [2019-11-20 01:52:52,463 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_aa704fde-6aa6-4639-ad5c-342c5b695e16/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 01:52:52,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 01:52:52,792 INFO L255 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-20 01:52:52,794 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 01:52:52,811 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 01:52:52,811 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 01:52:52,892 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 01:52:52,893 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1903052019] [2019-11-20 01:52:52,893 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 01:52:52,893 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-20 01:52:52,893 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754952377] [2019-11-20 01:52:52,895 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 01:52:52,895 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 01:52:52,896 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 01:52:52,896 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 01:52:52,896 INFO L87 Difference]: Start difference. First operand 87 states and 96 transitions. Second operand 3 states. [2019-11-20 01:52:53,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 01:52:53,176 INFO L93 Difference]: Finished difference Result 148 states and 164 transitions. [2019-11-20 01:52:53,177 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 01:52:53,177 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2019-11-20 01:52:53,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 01:52:53,179 INFO L225 Difference]: With dead ends: 148 [2019-11-20 01:52:53,179 INFO L226 Difference]: Without dead ends: 145 [2019-11-20 01:52:53,180 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 01:52:53,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2019-11-20 01:52:53,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 83. [2019-11-20 01:52:53,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2019-11-20 01:52:53,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 88 transitions. [2019-11-20 01:52:53,197 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 88 transitions. Word has length 16 [2019-11-20 01:52:53,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 01:52:53,197 INFO L462 AbstractCegarLoop]: Abstraction has 83 states and 88 transitions. [2019-11-20 01:52:53,197 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 01:52:53,198 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 88 transitions. [2019-11-20 01:52:53,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-11-20 01:52:53,199 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 01:52:53,199 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 01:52:53,402 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 01:52:53,403 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 01:52:53,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 01:52:53,404 INFO L82 PathProgramCache]: Analyzing trace with hash 1205565373, now seen corresponding path program 1 times [2019-11-20 01:52:53,404 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 01:52:53,405 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1437690399] [2019-11-20 01:52:53,405 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_aa704fde-6aa6-4639-ad5c-342c5b695e16/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 01:52:53,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 01:52:53,728 INFO L255 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 9 conjunts are in the unsatisfiable core [2019-11-20 01:52:53,731 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 01:52:53,777 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 01:52:53,777 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 01:52:53,781 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 01:52:53,782 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 01:52:53,782 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-20 01:52:53,914 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 01:52:53,914 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 01:52:53,916 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 01:52:53,951 INFO L567 ElimStorePlain]: treesize reduction 14, result has 51.7 percent of original size [2019-11-20 01:52:53,953 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 01:52:53,953 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:17, output treesize:15 [2019-11-20 01:52:54,003 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 01:52:54,003 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 01:52:58,527 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 01:52:58,527 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1437690399] [2019-11-20 01:52:58,527 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 01:52:58,528 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2019-11-20 01:52:58,528 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246717812] [2019-11-20 01:52:58,528 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-11-20 01:52:58,529 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 01:52:58,529 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-11-20 01:52:58,529 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=123, Unknown=1, NotChecked=0, Total=156 [2019-11-20 01:52:58,530 INFO L87 Difference]: Start difference. First operand 83 states and 88 transitions. Second operand 13 states. [2019-11-20 01:53:37,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 01:53:37,134 INFO L93 Difference]: Finished difference Result 263 states and 291 transitions. [2019-11-20 01:53:37,134 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-11-20 01:53:37,134 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 19 [2019-11-20 01:53:37,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 01:53:37,139 INFO L225 Difference]: With dead ends: 263 [2019-11-20 01:53:37,139 INFO L226 Difference]: Without dead ends: 263 [2019-11-20 01:53:37,140 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=76, Invalid=265, Unknown=1, NotChecked=0, Total=342 [2019-11-20 01:53:37,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states. [2019-11-20 01:53:37,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 117. [2019-11-20 01:53:37,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 117 states. [2019-11-20 01:53:37,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 158 transitions. [2019-11-20 01:53:37,160 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 158 transitions. Word has length 19 [2019-11-20 01:53:37,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 01:53:37,160 INFO L462 AbstractCegarLoop]: Abstraction has 117 states and 158 transitions. [2019-11-20 01:53:37,161 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-11-20 01:53:37,161 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 158 transitions. [2019-11-20 01:53:37,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-11-20 01:53:37,162 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 01:53:37,162 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 01:53:37,366 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 01:53:37,367 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 01:53:37,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 01:53:37,368 INFO L82 PathProgramCache]: Analyzing trace with hash 1205565374, now seen corresponding path program 1 times [2019-11-20 01:53:37,369 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 01:53:37,369 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [475362010] [2019-11-20 01:53:37,370 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_aa704fde-6aa6-4639-ad5c-342c5b695e16/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 01:53:37,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 01:53:37,689 INFO L255 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 18 conjunts are in the unsatisfiable core [2019-11-20 01:53:37,692 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 01:53:37,716 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 01:53:37,716 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 01:53:37,733 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 01:53:37,740 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 01:53:37,740 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-20 01:53:37,753 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 01:53:37,754 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 01:53:37,754 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2019-11-20 01:53:39,997 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 01:53:39,999 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 01:53:40,000 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 01:53:40,026 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 01:53:40,051 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 01:53:40,051 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 01:53:40,052 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-20 01:53:40,077 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 01:53:40,078 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 01:53:40,078 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:11 [2019-11-20 01:53:40,116 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 01:53:40,116 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 01:53:40,316 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-20 01:53:42,588 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 01:53:42,589 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-20 01:53:42,589 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 01:53:42,592 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 01:53:42,600 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-20 01:53:42,601 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 01:53:42,603 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 01:53:42,607 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 01:53:48,070 WARN L191 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 57 DAG size of output: 32 [2019-11-20 01:53:48,078 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 01:53:48,716 WARN L191 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 34 [2019-11-20 01:53:51,497 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 37 [2019-11-20 01:53:51,512 INFO L392 ElimStorePlain]: Different costs {1=[|#valid|], 2=[|#length|]} [2019-11-20 01:53:51,523 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 01:53:51,524 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 01:53:51,546 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 01:53:51,549 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-20 01:53:51,550 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-20 01:53:51,571 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 01:53:51,572 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 01:53:51,573 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:25, output treesize:8 [2019-11-20 01:53:51,680 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 01:53:51,681 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [475362010] [2019-11-20 01:53:51,681 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 01:53:51,681 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2019-11-20 01:53:51,682 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651680460] [2019-11-20 01:53:51,682 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-11-20 01:53:51,683 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 01:53:51,683 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-11-20 01:53:51,683 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=199, Unknown=4, NotChecked=0, Total=240 [2019-11-20 01:53:51,684 INFO L87 Difference]: Start difference. First operand 117 states and 158 transitions. Second operand 16 states. [2019-11-20 01:54:15,596 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((|v_ldv_malloc_#t~malloc12.base_21| (_ BitVec 32)) (v_entry_point_~a10~0.base_BEFORE_CALL_4 (_ BitVec 32)) (ldv_malloc_~size (_ BitVec 32)) (v_entry_point_~a10~0.offset_BEFORE_CALL_2 (_ BitVec 32))) (let ((.cse0 (bvadd v_entry_point_~a10~0.offset_BEFORE_CALL_2 (_ bv4 32)))) (or (bvsle .cse0 (select (store |c_#length| |v_ldv_malloc_#t~malloc12.base_21| ldv_malloc_~size) v_entry_point_~a10~0.base_BEFORE_CALL_4)) (not (bvsle (_ bv0 32) v_entry_point_~a10~0.offset_BEFORE_CALL_2)) (not (bvsle v_entry_point_~a10~0.offset_BEFORE_CALL_2 .cse0)) (exists ((v_prenex_1 (_ BitVec 32)) (v_ldv_malloc_~size_25 (_ BitVec 32))) (and (not (bvsle (bvadd v_entry_point_~a10~0.offset_BEFORE_CALL_2 (_ bv4 32)) (select (store |c_old(#length)| v_prenex_1 v_ldv_malloc_~size_25) v_entry_point_~a10~0.base_BEFORE_CALL_4))) (= (_ bv0 1) (select |c_old(#valid)| v_prenex_1)))) (not (= (select |c_#valid| |v_ldv_malloc_#t~malloc12.base_21|) (_ bv0 1)))))) (forall ((v_entry_point_~a10~0.base_BEFORE_CALL_4 (_ BitVec 32)) (v_entry_point_~a10~0.offset_BEFORE_CALL_2 (_ BitVec 32))) (let ((.cse1 (bvadd v_entry_point_~a10~0.offset_BEFORE_CALL_2 (_ bv4 32)))) (or (bvsle .cse1 (select |c_#length| v_entry_point_~a10~0.base_BEFORE_CALL_4)) (not (bvsle (_ bv0 32) v_entry_point_~a10~0.offset_BEFORE_CALL_2)) (not (bvsle v_entry_point_~a10~0.offset_BEFORE_CALL_2 .cse1)) (exists ((v_prenex_1 (_ BitVec 32)) (v_ldv_malloc_~size_25 (_ BitVec 32))) (and (not (bvsle (bvadd v_entry_point_~a10~0.offset_BEFORE_CALL_2 (_ bv4 32)) (select (store |c_old(#length)| v_prenex_1 v_ldv_malloc_~size_25) v_entry_point_~a10~0.base_BEFORE_CALL_4))) (= (_ bv0 1) (select |c_old(#valid)| v_prenex_1))))))) (= 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|) (exists ((v_prenex_2 (_ BitVec 32))) (= (_ bv0 1) (select |c_old(#valid)| v_prenex_2)))) is different from false [2019-11-20 01:54:31,917 WARN L191 SmtUtils]: Spent 2.13 s on a formula simplification. DAG size of input: 51 DAG size of output: 25 [2019-11-20 01:54:46,728 WARN L191 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 26 [2019-11-20 01:54:59,538 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_entry_point_~a10~0.base_BEFORE_CALL_4 (_ BitVec 32)) (v_entry_point_~a10~0.offset_BEFORE_CALL_2 (_ BitVec 32))) (let ((.cse0 (bvadd v_entry_point_~a10~0.offset_BEFORE_CALL_2 (_ bv4 32)))) (or (bvsle .cse0 (select |c_#length| v_entry_point_~a10~0.base_BEFORE_CALL_4)) (not (bvsle (_ bv0 32) v_entry_point_~a10~0.offset_BEFORE_CALL_2)) (not (bvsle v_entry_point_~a10~0.offset_BEFORE_CALL_2 .cse0)) (exists ((v_prenex_1 (_ BitVec 32)) (v_ldv_malloc_~size_25 (_ BitVec 32))) (and (not (bvsle (bvadd v_entry_point_~a10~0.offset_BEFORE_CALL_2 (_ bv4 32)) (select (store |c_old(#length)| v_prenex_1 v_ldv_malloc_~size_25) v_entry_point_~a10~0.base_BEFORE_CALL_4))) (= (_ bv0 1) (select |c_old(#valid)| v_prenex_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|))) (exists ((v_prenex_2 (_ BitVec 32))) (= (_ bv0 1) (select |c_old(#valid)| v_prenex_2)))) is different from false [2019-11-20 01:55:01,958 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 23 [2019-11-20 01:55:10,716 WARN L191 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 27 [2019-11-20 01:56:24,517 WARN L191 SmtUtils]: Spent 16.21 s on a formula simplification. DAG size of input: 47 DAG size of output: 43 [2019-11-20 01:56:48,495 WARN L191 SmtUtils]: Spent 2.15 s on a formula simplification. DAG size of input: 47 DAG size of output: 22 [2019-11-20 01:57:14,281 WARN L191 SmtUtils]: Spent 10.41 s on a formula simplification. DAG size of input: 60 DAG size of output: 33 [2019-11-20 01:58:02,585 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse2 (bvadd c_entry_point_~a10~0.offset (_ bv4 32)))) (let ((.cse1 (bvsle c_entry_point_~a10~0.offset .cse2)) (.cse0 (bvsle (_ bv0 32) c_entry_point_~a10~0.offset)) (.cse4 (forall ((|v_ldv_malloc_#t~malloc12.base_20| (_ BitVec 32))) (not (= (select |c_#valid| |v_ldv_malloc_#t~malloc12.base_20|) (_ bv0 1)))))) (and .cse0 .cse1 (bvsle .cse2 (select |c_#length| c_entry_point_~a10~0.base)) (forall ((v_entry_point_~a10~0.base_BEFORE_CALL_4 (_ BitVec 32)) (v_entry_point_~a10~0.offset_BEFORE_CALL_2 (_ BitVec 32))) (let ((.cse3 (bvadd v_entry_point_~a10~0.offset_BEFORE_CALL_2 (_ bv4 32)))) (or (bvsle .cse3 (select |c_#length| v_entry_point_~a10~0.base_BEFORE_CALL_4)) (not (bvsle (_ bv0 32) v_entry_point_~a10~0.offset_BEFORE_CALL_2)) (not (bvsle v_entry_point_~a10~0.offset_BEFORE_CALL_2 .cse3)) (exists ((v_prenex_1 (_ BitVec 32)) (v_ldv_malloc_~size_25 (_ BitVec 32))) (and (not (bvsle (bvadd v_entry_point_~a10~0.offset_BEFORE_CALL_2 (_ bv4 32)) (select (store |c_old(#length)| v_prenex_1 v_ldv_malloc_~size_25) v_entry_point_~a10~0.base_BEFORE_CALL_4))) (= (_ bv0 1) (select |c_old(#valid)| v_prenex_1))))))) (or .cse1 .cse4) (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)|) (= |c_old(#length)| |c_#length|) (or .cse0 .cse4) (forall ((v_ldv_malloc_~size_25 (_ BitVec 32)) (|v_ldv_malloc_#t~malloc12.base_20| (_ BitVec 32))) (or (not (= (select |c_#valid| |v_ldv_malloc_#t~malloc12.base_20|) (_ bv0 1))) (bvsle (bvadd c_entry_point_~a10~0.offset (_ bv4 32)) (select (store |c_#length| |v_ldv_malloc_#t~malloc12.base_20| v_ldv_malloc_~size_25) c_entry_point_~a10~0.base)))) (exists ((v_prenex_2 (_ BitVec 32))) (= (_ bv0 1) (select |c_old(#valid)| v_prenex_2)))))) is different from false [2019-11-20 01:59:56,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 01:59:56,446 INFO L93 Difference]: Finished difference Result 287 states and 330 transitions. [2019-11-20 01:59:56,446 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2019-11-20 01:59:56,447 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 19 [2019-11-20 01:59:56,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 01:59:56,449 INFO L225 Difference]: With dead ends: 287 [2019-11-20 01:59:56,450 INFO L226 Difference]: Without dead ends: 287 [2019-11-20 01:59:56,450 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 23 SyntacticMatches, 4 SemanticMatches, 28 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 130.7s TimeCoverageRelationStatistics Valid=118, Invalid=562, Unknown=34, NotChecked=156, Total=870 [2019-11-20 01:59:56,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2019-11-20 01:59:56,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 144. [2019-11-20 01:59:56,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2019-11-20 01:59:56,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 202 transitions. [2019-11-20 01:59:56,473 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 202 transitions. Word has length 19 [2019-11-20 01:59:56,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 01:59:56,474 INFO L462 AbstractCegarLoop]: Abstraction has 144 states and 202 transitions. [2019-11-20 01:59:56,474 INFO L463 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-11-20 01:59:56,474 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 202 transitions. [2019-11-20 01:59:56,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-11-20 01:59:56,476 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 01:59:56,476 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 01:59:56,679 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 01:59:56,680 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 01:59:56,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 01:59:56,680 INFO L82 PathProgramCache]: Analyzing trace with hash -591385986, now seen corresponding path program 1 times [2019-11-20 01:59:56,681 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 01:59:56,681 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1631405650] [2019-11-20 01:59:56,681 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_aa704fde-6aa6-4639-ad5c-342c5b695e16/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 01:59:56,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 01:59:56,928 INFO L255 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-20 01:59:56,930 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 01:59:56,967 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 01:59:56,967 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 01:59:57,003 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 01:59:57,003 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1631405650] [2019-11-20 01:59:57,003 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-20 01:59:57,003 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 5 [2019-11-20 01:59:57,004 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197261411] [2019-11-20 01:59:57,004 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-20 01:59:57,004 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 01:59:57,004 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 01:59:57,005 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-20 01:59:57,005 INFO L87 Difference]: Start difference. First operand 144 states and 202 transitions. Second operand 5 states. [2019-11-20 01:59:57,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 01:59:57,057 INFO L93 Difference]: Finished difference Result 113 states and 145 transitions. [2019-11-20 01:59:57,058 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 01:59:57,058 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 19 [2019-11-20 01:59:57,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 01:59:57,059 INFO L225 Difference]: With dead ends: 113 [2019-11-20 01:59:57,059 INFO L226 Difference]: Without dead ends: 111 [2019-11-20 01:59:57,059 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 01:59:57,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2019-11-20 01:59:57,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2019-11-20 01:59:57,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2019-11-20 01:59:57,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 143 transitions. [2019-11-20 01:59:57,073 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 143 transitions. Word has length 19 [2019-11-20 01:59:57,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 01:59:57,074 INFO L462 AbstractCegarLoop]: Abstraction has 111 states and 143 transitions. [2019-11-20 01:59:57,074 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-20 01:59:57,074 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 143 transitions. [2019-11-20 01:59:57,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-11-20 01:59:57,075 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 01:59:57,076 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 01:59:57,279 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 01:59:57,280 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 01:59:57,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 01:59:57,280 INFO L82 PathProgramCache]: Analyzing trace with hash -810585154, now seen corresponding path program 1 times [2019-11-20 01:59:57,281 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 01:59:57,281 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [53718853] [2019-11-20 01:59:57,281 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_aa704fde-6aa6-4639-ad5c-342c5b695e16/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 01:59:57,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 01:59:57,543 INFO L255 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-20 01:59:57,545 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 01:59:57,581 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 01:59:57,581 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 01:59:57,598 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 01:59:57,598 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 01:59:57,599 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:16, output treesize:8 [2019-11-20 01:59:57,617 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 01:59:57,618 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 01:59:57,620 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 01:59:57,620 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 01:59:57,621 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:16, output treesize:4 [2019-11-20 01:59:57,640 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 01:59:57,640 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 01:59:57,677 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 01:59:57,677 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [53718853] [2019-11-20 01:59:57,677 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 01:59:57,678 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2019-11-20 01:59:57,678 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027373619] [2019-11-20 01:59:57,678 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-20 01:59:57,678 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 01:59:57,679 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-20 01:59:57,679 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-20 01:59:57,679 INFO L87 Difference]: Start difference. First operand 111 states and 143 transitions. Second operand 6 states. [2019-11-20 01:59:57,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 01:59:57,837 INFO L93 Difference]: Finished difference Result 114 states and 145 transitions. [2019-11-20 01:59:57,838 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-20 01:59:57,838 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 24 [2019-11-20 01:59:57,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 01:59:57,839 INFO L225 Difference]: With dead ends: 114 [2019-11-20 01:59:57,839 INFO L226 Difference]: Without dead ends: 114 [2019-11-20 01:59:57,840 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 01:59:57,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2019-11-20 01:59:57,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 111. [2019-11-20 01:59:57,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2019-11-20 01:59:57,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 142 transitions. [2019-11-20 01:59:57,848 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 142 transitions. Word has length 24 [2019-11-20 01:59:57,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 01:59:57,848 INFO L462 AbstractCegarLoop]: Abstraction has 111 states and 142 transitions. [2019-11-20 01:59:57,848 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-20 01:59:57,848 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 142 transitions. [2019-11-20 01:59:57,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-11-20 01:59:57,849 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 01:59:57,849 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 01:59:58,054 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 01:59:58,054 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 01:59:58,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 01:59:58,055 INFO L82 PathProgramCache]: Analyzing trace with hash 1676927679, now seen corresponding path program 1 times [2019-11-20 01:59:58,055 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 01:59:58,055 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [485565154] [2019-11-20 01:59:58,055 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_aa704fde-6aa6-4639-ad5c-342c5b695e16/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 01:59:58,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 01:59:58,341 INFO L255 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-20 01:59:58,343 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 01:59:58,403 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 01:59:58,403 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 01:59:58,559 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 01:59:58,560 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [485565154] [2019-11-20 01:59:58,560 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 01:59:58,560 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 8 [2019-11-20 01:59:58,560 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280929955] [2019-11-20 01:59:58,561 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-20 01:59:58,561 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 01:59:58,561 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-20 01:59:58,561 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-11-20 01:59:58,562 INFO L87 Difference]: Start difference. First operand 111 states and 142 transitions. Second operand 9 states. [2019-11-20 01:59:58,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 01:59:58,874 INFO L93 Difference]: Finished difference Result 110 states and 140 transitions. [2019-11-20 01:59:58,874 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-20 01:59:58,874 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 24 [2019-11-20 01:59:58,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 01:59:58,876 INFO L225 Difference]: With dead ends: 110 [2019-11-20 01:59:58,876 INFO L226 Difference]: Without dead ends: 110 [2019-11-20 01:59:58,876 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 39 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-11-20 01:59:58,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2019-11-20 01:59:58,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2019-11-20 01:59:58,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2019-11-20 01:59:58,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 140 transitions. [2019-11-20 01:59:58,884 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 140 transitions. Word has length 24 [2019-11-20 01:59:58,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 01:59:58,885 INFO L462 AbstractCegarLoop]: Abstraction has 110 states and 140 transitions. [2019-11-20 01:59:58,885 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-20 01:59:58,885 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 140 transitions. [2019-11-20 01:59:58,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-11-20 01:59:58,887 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 01:59:58,887 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 01:59:59,106 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 01:59:59,106 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 01:59:59,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 01:59:59,107 INFO L82 PathProgramCache]: Analyzing trace with hash 1798092038, now seen corresponding path program 1 times [2019-11-20 01:59:59,107 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 01:59:59,107 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1905725036] [2019-11-20 01:59:59,108 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_aa704fde-6aa6-4639-ad5c-342c5b695e16/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 01:59:59,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 01:59:59,403 INFO L255 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 11 conjunts are in the unsatisfiable core [2019-11-20 01:59:59,405 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 01:59:59,417 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 01:59:59,417 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 01:59:59,421 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 01:59:59,422 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 01:59:59,422 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-20 01:59:59,461 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 01:59:59,461 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 01:59:59,475 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 01:59:59,475 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 01:59:59,475 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:19, output treesize:11 [2019-11-20 01:59:59,516 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 01:59:59,517 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 01:59:59,526 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 01:59:59,527 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 01:59:59,527 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:26, output treesize:15 [2019-11-20 01:59:59,670 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 01:59:59,671 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 01:59:59,671 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 01:59:59,692 INFO L567 ElimStorePlain]: treesize reduction 14, result has 51.7 percent of original size [2019-11-20 01:59:59,693 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 01:59:59,693 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:19, output treesize:15 [2019-11-20 01:59:59,721 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 01:59:59,721 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 02:00:00,205 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 02:00:00,207 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1905725036] [2019-11-20 02:00:00,208 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 02:00:00,208 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2019-11-20 02:00:00,209 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419559329] [2019-11-20 02:00:00,209 INFO L442 AbstractCegarLoop]: Interpolant automaton has 17 states [2019-11-20 02:00:00,211 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 02:00:00,211 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2019-11-20 02:00:00,212 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=226, Unknown=0, NotChecked=0, Total=272 [2019-11-20 02:00:00,214 INFO L87 Difference]: Start difference. First operand 110 states and 140 transitions. Second operand 17 states. [2019-11-20 02:00:33,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 02:00:33,190 INFO L93 Difference]: Finished difference Result 164 states and 194 transitions. [2019-11-20 02:00:33,190 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-11-20 02:00:33,190 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 29 [2019-11-20 02:00:33,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 02:00:33,192 INFO L225 Difference]: With dead ends: 164 [2019-11-20 02:00:33,192 INFO L226 Difference]: Without dead ends: 164 [2019-11-20 02:00:33,193 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=105, Invalid=447, Unknown=0, NotChecked=0, Total=552 [2019-11-20 02:00:33,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2019-11-20 02:00:33,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 111. [2019-11-20 02:00:33,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2019-11-20 02:00:33,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 141 transitions. [2019-11-20 02:00:33,200 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 141 transitions. Word has length 29 [2019-11-20 02:00:33,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 02:00:33,201 INFO L462 AbstractCegarLoop]: Abstraction has 111 states and 141 transitions. [2019-11-20 02:00:33,201 INFO L463 AbstractCegarLoop]: Interpolant automaton has 17 states. [2019-11-20 02:00:33,201 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 141 transitions. [2019-11-20 02:00:33,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-11-20 02:00:33,202 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 02:00:33,203 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 02:00:33,403 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 02:00:33,405 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 02:00:33,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:00:33,405 INFO L82 PathProgramCache]: Analyzing trace with hash 1798092039, now seen corresponding path program 1 times [2019-11-20 02:00:33,405 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 02:00:33,405 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [2039248943] [2019-11-20 02:00:33,405 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_aa704fde-6aa6-4639-ad5c-342c5b695e16/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 02:00:33,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 02:00:33,713 INFO L255 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 20 conjunts are in the unsatisfiable core [2019-11-20 02:00:33,715 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 02:00:33,733 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 02:00:33,734 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 02:00:33,743 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 02:00:33,754 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 02:00:33,755 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-20 02:00:33,772 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 02:00:33,772 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 02:00:33,773 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2019-11-20 02:00:33,857 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 02:00:33,858 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 02:00:33,883 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 02:00:33,890 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 02:00:33,890 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-20 02:00:33,915 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 02:00:33,916 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 02:00:33,916 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:35, output treesize:30 [2019-11-20 02:00:33,970 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 02:00:33,971 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 02:00:33,995 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 02:00:33,999 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 02:00:33,999 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-20 02:00:34,007 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 02:00:34,008 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 02:00:34,008 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:44, output treesize:16 [2019-11-20 02:00:36,120 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 02:00:36,122 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 02:00:36,122 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 02:00:36,142 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 02:00:36,153 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 02:00:36,153 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 02:00:36,154 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-20 02:00:36,166 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 02:00:36,167 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 02:00:36,167 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:27, output treesize:9 [2019-11-20 02:00:36,195 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 02:00:36,195 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 02:00:36,299 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-20 02:00:38,516 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 02:00:38,516 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-20 02:00:38,517 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 02:00:38,518 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 02:00:38,519 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-20 02:00:38,520 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 02:00:38,522 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 02:00:38,523 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 02:00:39,742 WARN L191 SmtUtils]: Spent 647.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 32 [2019-11-20 02:00:39,746 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 02:00:45,113 INFO L392 ElimStorePlain]: Different costs {1=[|#valid|], 2=[|#length|]} [2019-11-20 02:00:45,125 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 02:00:45,126 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 02:00:45,138 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 02:00:45,139 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-20 02:00:45,140 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-20 02:00:45,151 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 02:00:45,151 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 02:00:45,151 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:25, output treesize:8 [2019-11-20 02:00:45,249 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 02:00:45,249 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2039248943] [2019-11-20 02:00:45,249 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 02:00:45,249 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 17 [2019-11-20 02:00:45,250 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485940280] [2019-11-20 02:00:45,250 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-11-20 02:00:45,250 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 02:00:45,250 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-11-20 02:00:45,251 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=261, Unknown=2, NotChecked=0, Total=306 [2019-11-20 02:00:45,251 INFO L87 Difference]: Start difference. First operand 111 states and 141 transitions. Second operand 18 states. [2019-11-20 02:00:51,655 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|)) is different from false [2019-11-20 02:01:18,308 WARN L191 SmtUtils]: Spent 2.02 s on a formula simplification that was a NOOP. DAG size: 16 [2019-11-20 02:01:31,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 02:01:31,847 INFO L93 Difference]: Finished difference Result 118 states and 143 transitions. [2019-11-20 02:01:31,848 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-11-20 02:01:31,848 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 29 [2019-11-20 02:01:31,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 02:01:31,849 INFO L225 Difference]: With dead ends: 118 [2019-11-20 02:01:31,849 INFO L226 Difference]: Without dead ends: 118 [2019-11-20 02:01:31,850 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 41 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 17.6s TimeCoverageRelationStatistics Valid=83, Invalid=470, Unknown=3, NotChecked=44, Total=600 [2019-11-20 02:01:31,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2019-11-20 02:01:31,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 111. [2019-11-20 02:01:31,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2019-11-20 02:01:31,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 139 transitions. [2019-11-20 02:01:31,857 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 139 transitions. Word has length 29 [2019-11-20 02:01:31,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 02:01:31,857 INFO L462 AbstractCegarLoop]: Abstraction has 111 states and 139 transitions. [2019-11-20 02:01:31,857 INFO L463 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-11-20 02:01:31,858 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 139 transitions. [2019-11-20 02:01:31,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-11-20 02:01:31,859 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 02:01:31,859 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 02:01:32,059 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 02:01:32,060 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 02:01:32,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:01:32,060 INFO L82 PathProgramCache]: Analyzing trace with hash -1366421834, now seen corresponding path program 1 times [2019-11-20 02:01:32,061 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 02:01:32,061 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1870558444] [2019-11-20 02:01:32,061 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_aa704fde-6aa6-4639-ad5c-342c5b695e16/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 02:01:32,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 02:01:32,350 INFO L255 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 17 conjunts are in the unsatisfiable core [2019-11-20 02:01:32,352 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 02:01:32,372 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 02:01:32,372 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 02:01:32,372 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 02:01:32,392 INFO L567 ElimStorePlain]: treesize reduction 10, result has 60.0 percent of original size [2019-11-20 02:01:32,392 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 02:01:32,393 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 02:01:32,393 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:18, output treesize:15 [2019-11-20 02:01:32,393 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 02:01:32,399 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 02:01:32,413 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 02:01:32,425 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 02:01:38,582 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 02:01:38,582 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 02:01:42,934 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 02:01:42,935 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$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-11-20 02:01:42,960 INFO L168 Benchmark]: Toolchain (without parser) took 535642.42 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 169.9 MB). Free memory was 946.1 MB in the beginning and 1.2 GB in the end (delta: -215.8 MB). Peak memory consumption was 263.2 MB. Max. memory is 11.5 GB. [2019-11-20 02:01:42,960 INFO L168 Benchmark]: CDTParser took 1.20 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 02:01:42,961 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1063.81 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.3 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -166.5 MB). Peak memory consumption was 19.7 MB. Max. memory is 11.5 GB. [2019-11-20 02:01:42,961 INFO L168 Benchmark]: Boogie Preprocessor took 138.75 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-20 02:01:42,962 INFO L168 Benchmark]: RCFGBuilder took 2521.57 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 981.9 MB in the end (delta: 125.4 MB). Peak memory consumption was 125.4 MB. Max. memory is 11.5 GB. [2019-11-20 02:01:42,962 INFO L168 Benchmark]: TraceAbstraction took 531889.12 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 22.5 MB). Free memory was 981.9 MB in the beginning and 851.7 MB in the end (delta: 130.2 MB). Peak memory consumption was 152.7 MB. Max. memory is 11.5 GB. [2019-11-20 02:01:42,964 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.20 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 1063.81 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.3 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -166.5 MB). Peak memory consumption was 19.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 138.75 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 2521.57 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 981.9 MB in the end (delta: 125.4 MB). Peak memory consumption was 125.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 531889.12 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 22.5 MB). Free memory was 981.9 MB in the beginning and 851.7 MB in the end (delta: 130.2 MB). Peak memory consumption was 152.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: Alternating quantifiers not yet supported de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: Alternating quantifiers not yet supported: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:271) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...